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authorHans Verkuil <hverkuil-cisco@xs4all.nl>2022-08-11 11:17:48 +0200
committerMauro Carvalho Chehab <mchehab@kernel.org>2022-08-29 16:46:38 +0200
commite33fdb5a02490059e2f48ced2c038c8a46c6476d (patch)
tree4af388ba1670dcf8db0422795e318ac151480630 /drivers/media/common
parent6971757bdcccdd420583b0ed52361ebdafed2738 (diff)
downloadlinux-e33fdb5a02490059e2f48ced2c038c8a46c6476d.tar.bz2
media: saa7146: deprecate hexium_gemini/orion, mxb and ttpci
Deprecate the hexium_gemini, hexium_orion, mxb and ttpci saa7146-based drivers: these drivers do not use the vb2 framework for video streaming, instead it uses the old videobuf framework. We want to get rid of these old drivers, so deprecated these for future removal. [hverkuil: update MAINTAINERS file] Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/common')
-rw-r--r--drivers/media/common/Kconfig1
-rw-r--r--drivers/media/common/Makefile2
-rw-r--r--drivers/media/common/saa7146/Kconfig10
-rw-r--r--drivers/media/common/saa7146/Makefile6
-rw-r--r--drivers/media/common/saa7146/saa7146_core.c578
-rw-r--r--drivers/media/common/saa7146/saa7146_fops.c658
-rw-r--r--drivers/media/common/saa7146/saa7146_hlp.c1046
-rw-r--r--drivers/media/common/saa7146/saa7146_i2c.c421
-rw-r--r--drivers/media/common/saa7146/saa7146_vbi.c498
-rw-r--r--drivers/media/common/saa7146/saa7146_video.c1286
10 files changed, 1 insertions, 4505 deletions
diff --git a/drivers/media/common/Kconfig b/drivers/media/common/Kconfig
index a2ae71270054..852b7d92fbdd 100644
--- a/drivers/media/common/Kconfig
+++ b/drivers/media/common/Kconfig
@@ -22,7 +22,6 @@ config VIDEO_TVEEPROM
depends on I2C
source "drivers/media/common/b2c2/Kconfig"
-source "drivers/media/common/saa7146/Kconfig"
source "drivers/media/common/siano/Kconfig"
source "drivers/media/common/v4l2-tpg/Kconfig"
source "drivers/media/common/videobuf2/Kconfig"
diff --git a/drivers/media/common/Makefile b/drivers/media/common/Makefile
index ad0b1e95fb12..d78a0df15478 100644
--- a/drivers/media/common/Makefile
+++ b/drivers/media/common/Makefile
@@ -1,5 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
-obj-y += b2c2/ saa7146/ siano/ v4l2-tpg/ videobuf2/
+obj-y += b2c2/ siano/ v4l2-tpg/ videobuf2/
# Please keep it alphabetically sorted by Kconfig name
# (e. g. LC_ALL=C sort Makefile)
diff --git a/drivers/media/common/saa7146/Kconfig b/drivers/media/common/saa7146/Kconfig
deleted file mode 100644
index a0aa155e5d85..000000000000
--- a/drivers/media/common/saa7146/Kconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-config VIDEO_SAA7146
- tristate
- depends on I2C && PCI
-
-config VIDEO_SAA7146_VV
- tristate
- depends on VIDEO_DEV
- select VIDEOBUF_DMA_SG
- select VIDEO_SAA7146
diff --git a/drivers/media/common/saa7146/Makefile b/drivers/media/common/saa7146/Makefile
deleted file mode 100644
index 2a6337feaec8..000000000000
--- a/drivers/media/common/saa7146/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-saa7146-objs := saa7146_i2c.o saa7146_core.o
-saa7146_vv-objs := saa7146_fops.o saa7146_video.o saa7146_hlp.o saa7146_vbi.o
-
-obj-$(CONFIG_VIDEO_SAA7146) += saa7146.o
-obj-$(CONFIG_VIDEO_SAA7146_VV) += saa7146_vv.o
diff --git a/drivers/media/common/saa7146/saa7146_core.c b/drivers/media/common/saa7146/saa7146_core.c
deleted file mode 100644
index e50fa0ff7c5d..000000000000
--- a/drivers/media/common/saa7146/saa7146_core.c
+++ /dev/null
@@ -1,578 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- saa7146.o - driver for generic saa7146-based hardware
-
- Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de>
-
-*/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <media/drv-intf/saa7146.h>
-#include <linux/module.h>
-
-static int saa7146_num;
-
-unsigned int saa7146_debug;
-
-module_param(saa7146_debug, uint, 0644);
-MODULE_PARM_DESC(saa7146_debug, "debug level (default: 0)");
-
-#if 0
-static void dump_registers(struct saa7146_dev* dev)
-{
- int i = 0;
-
- pr_info(" @ %li jiffies:\n", jiffies);
- for (i = 0; i <= 0x148; i += 4)
- pr_info("0x%03x: 0x%08x\n", i, saa7146_read(dev, i));
-}
-#endif
-
-/****************************************************************************
- * gpio and debi helper functions
- ****************************************************************************/
-
-void saa7146_setgpio(struct saa7146_dev *dev, int port, u32 data)
-{
- u32 value = 0;
-
- BUG_ON(port > 3);
-
- value = saa7146_read(dev, GPIO_CTRL);
- value &= ~(0xff << (8*port));
- value |= (data << (8*port));
- saa7146_write(dev, GPIO_CTRL, value);
-}
-
-/* This DEBI code is based on the saa7146 Stradis driver by Nathan Laredo */
-static inline int saa7146_wait_for_debi_done_sleep(struct saa7146_dev *dev,
- unsigned long us1, unsigned long us2)
-{
- unsigned long timeout;
- int err;
-
- /* wait for registers to be programmed */
- timeout = jiffies + usecs_to_jiffies(us1);
- while (1) {
- err = time_after(jiffies, timeout);
- if (saa7146_read(dev, MC2) & 2)
- break;
- if (err) {
- pr_debug("%s: %s timed out while waiting for registers getting programmed\n",
- dev->name, __func__);
- return -ETIMEDOUT;
- }
- msleep(1);
- }
-
- /* wait for transfer to complete */
- timeout = jiffies + usecs_to_jiffies(us2);
- while (1) {
- err = time_after(jiffies, timeout);
- if (!(saa7146_read(dev, PSR) & SPCI_DEBI_S))
- break;
- saa7146_read(dev, MC2);
- if (err) {
- DEB_S("%s: %s timed out while waiting for transfer completion\n",
- dev->name, __func__);
- return -ETIMEDOUT;
- }
- msleep(1);
- }
-
- return 0;
-}
-
-static inline int saa7146_wait_for_debi_done_busyloop(struct saa7146_dev *dev,
- unsigned long us1, unsigned long us2)
-{
- unsigned long loops;
-
- /* wait for registers to be programmed */
- loops = us1;
- while (1) {
- if (saa7146_read(dev, MC2) & 2)
- break;
- if (!loops--) {
- pr_err("%s: %s timed out while waiting for registers getting programmed\n",
- dev->name, __func__);
- return -ETIMEDOUT;
- }
- udelay(1);
- }
-
- /* wait for transfer to complete */
- loops = us2 / 5;
- while (1) {
- if (!(saa7146_read(dev, PSR) & SPCI_DEBI_S))
- break;
- saa7146_read(dev, MC2);
- if (!loops--) {
- DEB_S("%s: %s timed out while waiting for transfer completion\n",
- dev->name, __func__);
- return -ETIMEDOUT;
- }
- udelay(5);
- }
-
- return 0;
-}
-
-int saa7146_wait_for_debi_done(struct saa7146_dev *dev, int nobusyloop)
-{
- if (nobusyloop)
- return saa7146_wait_for_debi_done_sleep(dev, 50000, 250000);
- else
- return saa7146_wait_for_debi_done_busyloop(dev, 50000, 250000);
-}
-
-/****************************************************************************
- * general helper functions
- ****************************************************************************/
-
-/* this is videobuf_vmalloc_to_sg() from videobuf-dma-sg.c
- make sure virt has been allocated with vmalloc_32(), otherwise the BUG()
- may be triggered on highmem machines */
-static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages)
-{
- struct scatterlist *sglist;
- struct page *pg;
- int i;
-
- sglist = kmalloc_array(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
- if (NULL == sglist)
- return NULL;
- sg_init_table(sglist, nr_pages);
- for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {
- pg = vmalloc_to_page(virt);
- if (NULL == pg)
- goto err;
- BUG_ON(PageHighMem(pg));
- sg_set_page(&sglist[i], pg, PAGE_SIZE, 0);
- }
- return sglist;
-
- err:
- kfree(sglist);
- return NULL;
-}
-
-/********************************************************************************/
-/* common page table functions */
-
-void *saa7146_vmalloc_build_pgtable(struct pci_dev *pci, long length, struct saa7146_pgtable *pt)
-{
- int pages = (length+PAGE_SIZE-1)/PAGE_SIZE;
- void *mem = vmalloc_32(length);
- int slen = 0;
-
- if (NULL == mem)
- goto err_null;
-
- if (!(pt->slist = vmalloc_to_sg(mem, pages)))
- goto err_free_mem;
-
- if (saa7146_pgtable_alloc(pci, pt))
- goto err_free_slist;
-
- pt->nents = pages;
- slen = dma_map_sg(&pci->dev, pt->slist, pt->nents, DMA_FROM_DEVICE);
- if (0 == slen)
- goto err_free_pgtable;
-
- if (0 != saa7146_pgtable_build_single(pci, pt, pt->slist, slen))
- goto err_unmap_sg;
-
- return mem;
-
-err_unmap_sg:
- dma_unmap_sg(&pci->dev, pt->slist, pt->nents, DMA_FROM_DEVICE);
-err_free_pgtable:
- saa7146_pgtable_free(pci, pt);
-err_free_slist:
- kfree(pt->slist);
- pt->slist = NULL;
-err_free_mem:
- vfree(mem);
-err_null:
- return NULL;
-}
-
-void saa7146_vfree_destroy_pgtable(struct pci_dev *pci, void *mem, struct saa7146_pgtable *pt)
-{
- dma_unmap_sg(&pci->dev, pt->slist, pt->nents, DMA_FROM_DEVICE);
- saa7146_pgtable_free(pci, pt);
- kfree(pt->slist);
- pt->slist = NULL;
- vfree(mem);
-}
-
-void saa7146_pgtable_free(struct pci_dev *pci, struct saa7146_pgtable *pt)
-{
- if (NULL == pt->cpu)
- return;
- dma_free_coherent(&pci->dev, pt->size, pt->cpu, pt->dma);
- pt->cpu = NULL;
-}
-
-int saa7146_pgtable_alloc(struct pci_dev *pci, struct saa7146_pgtable *pt)
-{
- __le32 *cpu;
- dma_addr_t dma_addr = 0;
-
- cpu = dma_alloc_coherent(&pci->dev, PAGE_SIZE, &dma_addr, GFP_KERNEL);
- if (NULL == cpu) {
- return -ENOMEM;
- }
- pt->size = PAGE_SIZE;
- pt->cpu = cpu;
- pt->dma = dma_addr;
-
- return 0;
-}
-
-int saa7146_pgtable_build_single(struct pci_dev *pci, struct saa7146_pgtable *pt,
- struct scatterlist *list, int sglen )
-{
- __le32 *ptr, fill;
- int nr_pages = 0;
- int i,p;
-
- BUG_ON(0 == sglen);
- BUG_ON(list->offset > PAGE_SIZE);
-
- /* if we have a user buffer, the first page may not be
- aligned to a page boundary. */
- pt->offset = list->offset;
-
- ptr = pt->cpu;
- for (i = 0; i < sglen; i++, list++) {
-/*
- pr_debug("i:%d, adr:0x%08x, len:%d, offset:%d\n",
- i, sg_dma_address(list), sg_dma_len(list),
- list->offset);
-*/
- for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr++) {
- *ptr = cpu_to_le32(sg_dma_address(list) + p * 4096);
- nr_pages++;
- }
- }
-
-
- /* safety; fill the page table up with the last valid page */
- fill = *(ptr-1);
- for(i=nr_pages;i<1024;i++) {
- *ptr++ = fill;
- }
-
-/*
- ptr = pt->cpu;
- pr_debug("offset: %d\n", pt->offset);
- for(i=0;i<5;i++) {
- pr_debug("ptr1 %d: 0x%08x\n", i, ptr[i]);
- }
-*/
- return 0;
-}
-
-/********************************************************************************/
-/* interrupt handler */
-static irqreturn_t interrupt_hw(int irq, void *dev_id)
-{
- struct saa7146_dev *dev = dev_id;
- u32 isr;
- u32 ack_isr;
-
- /* read out the interrupt status register */
- ack_isr = isr = saa7146_read(dev, ISR);
-
- /* is this our interrupt? */
- if ( 0 == isr ) {
- /* nope, some other device */
- return IRQ_NONE;
- }
-
- if (dev->ext) {
- if (dev->ext->irq_mask & isr) {
- if (dev->ext->irq_func)
- dev->ext->irq_func(dev, &isr);
- isr &= ~dev->ext->irq_mask;
- }
- }
- if (0 != (isr & (MASK_27))) {
- DEB_INT("irq: RPS0 (0x%08x)\n", isr);
- if (dev->vv_data && dev->vv_callback)
- dev->vv_callback(dev,isr);
- isr &= ~MASK_27;
- }
- if (0 != (isr & (MASK_28))) {
- if (dev->vv_data && dev->vv_callback)
- dev->vv_callback(dev,isr);
- isr &= ~MASK_28;
- }
- if (0 != (isr & (MASK_16|MASK_17))) {
- SAA7146_IER_DISABLE(dev, MASK_16|MASK_17);
- /* only wake up if we expect something */
- if (0 != dev->i2c_op) {
- dev->i2c_op = 0;
- wake_up(&dev->i2c_wq);
- } else {
- u32 psr = saa7146_read(dev, PSR);
- u32 ssr = saa7146_read(dev, SSR);
- pr_warn("%s: unexpected i2c irq: isr %08x psr %08x ssr %08x\n",
- dev->name, isr, psr, ssr);
- }
- isr &= ~(MASK_16|MASK_17);
- }
- if( 0 != isr ) {
- ERR("warning: interrupt enabled, but not handled properly.(0x%08x)\n",
- isr);
- ERR("disabling interrupt source(s)!\n");
- SAA7146_IER_DISABLE(dev,isr);
- }
- saa7146_write(dev, ISR, ack_isr);
- return IRQ_HANDLED;
-}
-
-/*********************************************************************************/
-/* configuration-functions */
-
-static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent)
-{
- struct saa7146_pci_extension_data *pci_ext = (struct saa7146_pci_extension_data *)ent->driver_data;
- struct saa7146_extension *ext = pci_ext->ext;
- struct saa7146_dev *dev;
- int err = -ENOMEM;
-
- /* clear out mem for sure */
- dev = kzalloc(sizeof(struct saa7146_dev), GFP_KERNEL);
- if (!dev) {
- ERR("out of memory\n");
- goto out;
- }
-
- /* create a nice device name */
- sprintf(dev->name, "saa7146 (%d)", saa7146_num);
-
- DEB_EE("pci:%p\n", pci);
-
- err = pci_enable_device(pci);
- if (err < 0) {
- ERR("pci_enable_device() failed\n");
- goto err_free;
- }
-
- /* enable bus-mastering */
- pci_set_master(pci);
-
- dev->pci = pci;
-
- /* get chip-revision; this is needed to enable bug-fixes */
- dev->revision = pci->revision;
-
- /* remap the memory from virtual to physical address */
-
- err = pci_request_region(pci, 0, "saa7146");
- if (err < 0)
- goto err_disable;
-
- dev->mem = ioremap(pci_resource_start(pci, 0),
- pci_resource_len(pci, 0));
- if (!dev->mem) {
- ERR("ioremap() failed\n");
- err = -ENODEV;
- goto err_release;
- }
-
- /* we don't do a master reset here anymore, it screws up
- some boards that don't have an i2c-eeprom for configuration
- values */
-/*
- saa7146_write(dev, MC1, MASK_31);
-*/
-
- /* disable all irqs */
- saa7146_write(dev, IER, 0);
-
- /* shut down all dma transfers and rps tasks */
- saa7146_write(dev, MC1, 0x30ff0000);
-
- /* clear out any rps-signals pending */
- saa7146_write(dev, MC2, 0xf8000000);
-
- /* request an interrupt for the saa7146 */
- err = request_irq(pci->irq, interrupt_hw, IRQF_SHARED,
- dev->name, dev);
- if (err < 0) {
- ERR("request_irq() failed\n");
- goto err_unmap;
- }
-
- err = -ENOMEM;
-
- /* get memory for various stuff */
- dev->d_rps0.cpu_addr = dma_alloc_coherent(&pci->dev, SAA7146_RPS_MEM,
- &dev->d_rps0.dma_handle,
- GFP_KERNEL);
- if (!dev->d_rps0.cpu_addr)
- goto err_free_irq;
-
- dev->d_rps1.cpu_addr = dma_alloc_coherent(&pci->dev, SAA7146_RPS_MEM,
- &dev->d_rps1.dma_handle,
- GFP_KERNEL);
- if (!dev->d_rps1.cpu_addr)
- goto err_free_rps0;
-
- dev->d_i2c.cpu_addr = dma_alloc_coherent(&pci->dev, SAA7146_RPS_MEM,
- &dev->d_i2c.dma_handle, GFP_KERNEL);
- if (!dev->d_i2c.cpu_addr)
- goto err_free_rps1;
-
- /* the rest + print status message */
-
- pr_info("found saa7146 @ mem %p (revision %d, irq %d) (0x%04x,0x%04x)\n",
- dev->mem, dev->revision, pci->irq,
- pci->subsystem_vendor, pci->subsystem_device);
- dev->ext = ext;
-
- mutex_init(&dev->v4l2_lock);
- spin_lock_init(&dev->int_slock);
- spin_lock_init(&dev->slock);
-
- mutex_init(&dev->i2c_lock);
-
- dev->module = THIS_MODULE;
- init_waitqueue_head(&dev->i2c_wq);
-
- /* set some sane pci arbitrition values */
- saa7146_write(dev, PCI_BT_V1, 0x1c00101f);
-
- /* TODO: use the status code of the callback */
-
- err = -ENODEV;
-
- if (ext->probe && ext->probe(dev)) {
- DEB_D("ext->probe() failed for %p. skipping device.\n", dev);
- goto err_free_i2c;
- }
-
- if (ext->attach(dev, pci_ext)) {
- DEB_D("ext->attach() failed for %p. skipping device.\n", dev);
- goto err_free_i2c;
- }
- /* V4L extensions will set the pci drvdata to the v4l2_device in the
- attach() above. So for those cards that do not use V4L we have to
- set it explicitly. */
- pci_set_drvdata(pci, &dev->v4l2_dev);
-
- saa7146_num++;
-
- err = 0;
-out:
- return err;
-
-err_free_i2c:
- dma_free_coherent(&pci->dev, SAA7146_RPS_MEM, dev->d_i2c.cpu_addr,
- dev->d_i2c.dma_handle);
-err_free_rps1:
- dma_free_coherent(&pci->dev, SAA7146_RPS_MEM, dev->d_rps1.cpu_addr,
- dev->d_rps1.dma_handle);
-err_free_rps0:
- dma_free_coherent(&pci->dev, SAA7146_RPS_MEM, dev->d_rps0.cpu_addr,
- dev->d_rps0.dma_handle);
-err_free_irq:
- free_irq(pci->irq, (void *)dev);
-err_unmap:
- iounmap(dev->mem);
-err_release:
- pci_release_region(pci, 0);
-err_disable:
- pci_disable_device(pci);
-err_free:
- kfree(dev);
- goto out;
-}
-
-static void saa7146_remove_one(struct pci_dev *pdev)
-{
- struct v4l2_device *v4l2_dev = pci_get_drvdata(pdev);
- struct saa7146_dev *dev = to_saa7146_dev(v4l2_dev);
- struct {
- void *addr;
- dma_addr_t dma;
- } dev_map[] = {
- { dev->d_i2c.cpu_addr, dev->d_i2c.dma_handle },
- { dev->d_rps1.cpu_addr, dev->d_rps1.dma_handle },
- { dev->d_rps0.cpu_addr, dev->d_rps0.dma_handle },
- { NULL, 0 }
- }, *p;
-
- DEB_EE("dev:%p\n", dev);
-
- dev->ext->detach(dev);
-
- /* shut down all video dma transfers */
- saa7146_write(dev, MC1, 0x00ff0000);
-
- /* disable all irqs, release irq-routine */
- saa7146_write(dev, IER, 0);
-
- free_irq(pdev->irq, dev);
-
- for (p = dev_map; p->addr; p++)
- dma_free_coherent(&pdev->dev, SAA7146_RPS_MEM, p->addr,
- p->dma);
-
- iounmap(dev->mem);
- pci_release_region(pdev, 0);
- pci_disable_device(pdev);
- kfree(dev);
-
- saa7146_num--;
-}
-
-/*********************************************************************************/
-/* extension handling functions */
-
-int saa7146_register_extension(struct saa7146_extension* ext)
-{
- DEB_EE("ext:%p\n", ext);
-
- ext->driver.name = ext->name;
- ext->driver.id_table = ext->pci_tbl;
- ext->driver.probe = saa7146_init_one;
- ext->driver.remove = saa7146_remove_one;
-
- pr_info("register extension '%s'\n", ext->name);
- return pci_register_driver(&ext->driver);
-}
-
-int saa7146_unregister_extension(struct saa7146_extension* ext)
-{
- DEB_EE("ext:%p\n", ext);
- pr_info("unregister extension '%s'\n", ext->name);
- pci_unregister_driver(&ext->driver);
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(saa7146_register_extension);
-EXPORT_SYMBOL_GPL(saa7146_unregister_extension);
-
-/* misc functions used by extension modules */
-EXPORT_SYMBOL_GPL(saa7146_pgtable_alloc);
-EXPORT_SYMBOL_GPL(saa7146_pgtable_free);
-EXPORT_SYMBOL_GPL(saa7146_pgtable_build_single);
-EXPORT_SYMBOL_GPL(saa7146_vmalloc_build_pgtable);
-EXPORT_SYMBOL_GPL(saa7146_vfree_destroy_pgtable);
-EXPORT_SYMBOL_GPL(saa7146_wait_for_debi_done);
-
-EXPORT_SYMBOL_GPL(saa7146_setgpio);
-
-EXPORT_SYMBOL_GPL(saa7146_i2c_adapter_prepare);
-
-EXPORT_SYMBOL_GPL(saa7146_debug);
-
-MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
-MODULE_DESCRIPTION("driver for generic saa7146-based hardware");
-MODULE_LICENSE("GPL");
diff --git a/drivers/media/common/saa7146/saa7146_fops.c b/drivers/media/common/saa7146/saa7146_fops.c
deleted file mode 100644
index e9a15de6126e..000000000000
--- a/drivers/media/common/saa7146/saa7146_fops.c
+++ /dev/null
@@ -1,658 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <media/drv-intf/saa7146_vv.h>
-#include <linux/module.h>
-
-/****************************************************************************/
-/* resource management functions, shamelessly stolen from saa7134 driver */
-
-int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- if (fh->resources & bit) {
- DEB_D("already allocated! want: 0x%02x, cur:0x%02x\n",
- bit, vv->resources);
- /* have it already allocated */
- return 1;
- }
-
- /* is it free? */
- if (vv->resources & bit) {
- DEB_D("locked! vv->resources:0x%02x, we want:0x%02x\n",
- vv->resources, bit);
- /* no, someone else uses it */
- return 0;
- }
- /* it's free, grab it */
- fh->resources |= bit;
- vv->resources |= bit;
- DEB_D("res: get 0x%02x, cur:0x%02x\n", bit, vv->resources);
- return 1;
-}
-
-void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- BUG_ON((fh->resources & bits) != bits);
-
- fh->resources &= ~bits;
- vv->resources &= ~bits;
- DEB_D("res: put 0x%02x, cur:0x%02x\n", bits, vv->resources);
-}
-
-
-/********************************************************************************/
-/* common dma functions */
-
-void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q,
- struct saa7146_buf *buf)
-{
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
- DEB_EE("dev:%p, buf:%p\n", dev, buf);
-
- videobuf_waiton(q, &buf->vb, 0, 0);
- videobuf_dma_unmap(q->dev, dma);
- videobuf_dma_free(dma);
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-
-/********************************************************************************/
-/* common buffer functions */
-
-int saa7146_buffer_queue(struct saa7146_dev *dev,
- struct saa7146_dmaqueue *q,
- struct saa7146_buf *buf)
-{
- assert_spin_locked(&dev->slock);
- DEB_EE("dev:%p, dmaq:%p, buf:%p\n", dev, q, buf);
-
- BUG_ON(!q);
-
- if (NULL == q->curr) {
- q->curr = buf;
- DEB_D("immediately activating buffer %p\n", buf);
- buf->activate(dev,buf,NULL);
- } else {
- list_add_tail(&buf->vb.queue,&q->queue);
- buf->vb.state = VIDEOBUF_QUEUED;
- DEB_D("adding buffer %p to queue. (active buffer present)\n",
- buf);
- }
- return 0;
-}
-
-void saa7146_buffer_finish(struct saa7146_dev *dev,
- struct saa7146_dmaqueue *q,
- int state)
-{
- assert_spin_locked(&dev->slock);
- DEB_EE("dev:%p, dmaq:%p, state:%d\n", dev, q, state);
- DEB_EE("q->curr:%p\n", q->curr);
-
- /* finish current buffer */
- if (NULL == q->curr) {
- DEB_D("aiii. no current buffer\n");
- return;
- }
-
- q->curr->vb.state = state;
- q->curr->vb.ts = ktime_get_ns();
- wake_up(&q->curr->vb.done);
-
- q->curr = NULL;
-}
-
-void saa7146_buffer_next(struct saa7146_dev *dev,
- struct saa7146_dmaqueue *q, int vbi)
-{
- struct saa7146_buf *buf,*next = NULL;
-
- BUG_ON(!q);
-
- DEB_INT("dev:%p, dmaq:%p, vbi:%d\n", dev, q, vbi);
-
- assert_spin_locked(&dev->slock);
- if (!list_empty(&q->queue)) {
- /* activate next one from queue */
- buf = list_entry(q->queue.next,struct saa7146_buf,vb.queue);
- list_del(&buf->vb.queue);
- if (!list_empty(&q->queue))
- next = list_entry(q->queue.next,struct saa7146_buf, vb.queue);
- q->curr = buf;
- DEB_INT("next buffer: buf:%p, prev:%p, next:%p\n",
- buf, q->queue.prev, q->queue.next);
- buf->activate(dev,buf,next);
- } else {
- DEB_INT("no next buffer. stopping.\n");
- if( 0 != vbi ) {
- /* turn off video-dma3 */
- saa7146_write(dev,MC1, MASK_20);
- } else {
- /* nothing to do -- just prevent next video-dma1 transfer
- by lowering the protection address */
-
- // fixme: fix this for vflip != 0
-
- saa7146_write(dev, PROT_ADDR1, 0);
- saa7146_write(dev, MC2, (MASK_02|MASK_18));
-
- /* write the address of the rps-program */
- saa7146_write(dev, RPS_ADDR0, dev->d_rps0.dma_handle);
- /* turn on rps */
- saa7146_write(dev, MC1, (MASK_12 | MASK_28));
-
-/*
- printk("vdma%d.base_even: 0x%08x\n", 1,saa7146_read(dev,BASE_EVEN1));
- printk("vdma%d.base_odd: 0x%08x\n", 1,saa7146_read(dev,BASE_ODD1));
- printk("vdma%d.prot_addr: 0x%08x\n", 1,saa7146_read(dev,PROT_ADDR1));
- printk("vdma%d.base_page: 0x%08x\n", 1,saa7146_read(dev,BASE_PAGE1));
- printk("vdma%d.pitch: 0x%08x\n", 1,saa7146_read(dev,PITCH1));
- printk("vdma%d.num_line_byte: 0x%08x\n", 1,saa7146_read(dev,NUM_LINE_BYTE1));
-*/
- }
- del_timer(&q->timeout);
- }
-}
-
-void saa7146_buffer_timeout(struct timer_list *t)
-{
- struct saa7146_dmaqueue *q = from_timer(q, t, timeout);
- struct saa7146_dev *dev = q->dev;
- unsigned long flags;
-
- DEB_EE("dev:%p, dmaq:%p\n", dev, q);
-
- spin_lock_irqsave(&dev->slock,flags);
- if (q->curr) {
- DEB_D("timeout on %p\n", q->curr);
- saa7146_buffer_finish(dev,q,VIDEOBUF_ERROR);
- }
-
- /* we don't restart the transfer here like other drivers do. when
- a streaming capture is disabled, the timeout function will be
- called for the current buffer. if we activate the next buffer now,
- we mess up our capture logic. if a timeout occurs on another buffer,
- then something is seriously broken before, so no need to buffer the
- next capture IMHO... */
-/*
- saa7146_buffer_next(dev,q);
-*/
- spin_unlock_irqrestore(&dev->slock,flags);
-}
-
-/********************************************************************************/
-/* file operations */
-
-static int fops_open(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = NULL;
- int result = 0;
-
- DEB_EE("file:%p, dev:%s\n", file, video_device_node_name(vdev));
-
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
-
- DEB_D("using: %p\n", dev);
-
- /* check if an extension is registered */
- if( NULL == dev->ext ) {
- DEB_S("no extension registered for this device\n");
- result = -ENODEV;
- goto out;
- }
-
- /* allocate per open data */
- fh = kzalloc(sizeof(*fh),GFP_KERNEL);
- if (NULL == fh) {
- DEB_S("cannot allocate memory for per open data\n");
- result = -ENOMEM;
- goto out;
- }
-
- v4l2_fh_init(&fh->fh, vdev);
-
- file->private_data = &fh->fh;
- fh->dev = dev;
-
- if (vdev->vfl_type == VFL_TYPE_VBI) {
- DEB_S("initializing vbi...\n");
- if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
- result = saa7146_vbi_uops.open(dev,file);
- if (dev->ext_vv_data->vbi_fops.open)
- dev->ext_vv_data->vbi_fops.open(file);
- } else {
- DEB_S("initializing video...\n");
- result = saa7146_video_uops.open(dev,file);
- }
-
- if (0 != result) {
- goto out;
- }
-
- if( 0 == try_module_get(dev->ext->module)) {
- result = -EINVAL;
- goto out;
- }
-
- result = 0;
- v4l2_fh_add(&fh->fh);
-out:
- if (fh && result != 0) {
- kfree(fh);
- file->private_data = NULL;
- }
- mutex_unlock(vdev->lock);
- return result;
-}
-
-static int fops_release(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
-
- DEB_EE("file:%p\n", file);
-
- mutex_lock(vdev->lock);
-
- if (vdev->vfl_type == VFL_TYPE_VBI) {
- if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
- saa7146_vbi_uops.release(dev,file);
- if (dev->ext_vv_data->vbi_fops.release)
- dev->ext_vv_data->vbi_fops.release(file);
- } else {
- saa7146_video_uops.release(dev,file);
- }
-
- v4l2_fh_del(&fh->fh);
- v4l2_fh_exit(&fh->fh);
- module_put(dev->ext->module);
- file->private_data = NULL;
- kfree(fh);
-
- mutex_unlock(vdev->lock);
-
- return 0;
-}
-
-static int fops_mmap(struct file *file, struct vm_area_struct * vma)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_fh *fh = file->private_data;
- struct videobuf_queue *q;
- int res;
-
- switch (vdev->vfl_type) {
- case VFL_TYPE_VIDEO: {
- DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n",
- file, vma);
- q = &fh->video_q;
- break;
- }
- case VFL_TYPE_VBI: {
- DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n",
- file, vma);
- if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT)
- return -ENODEV;
- q = &fh->vbi_q;
- break;
- }
- default:
- BUG();
- }
-
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
- res = videobuf_mmap_mapper(q, vma);
- mutex_unlock(vdev->lock);
- return res;
-}
-
-static __poll_t __fops_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_fh *fh = file->private_data;
- struct videobuf_buffer *buf = NULL;
- struct videobuf_queue *q;
- __poll_t res = v4l2_ctrl_poll(file, wait);
-
- DEB_EE("file:%p, poll:%p\n", file, wait);
-
- if (vdev->vfl_type == VFL_TYPE_VBI) {
- if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT)
- return res | EPOLLOUT | EPOLLWRNORM;
- if( 0 == fh->vbi_q.streaming )
- return res | videobuf_poll_stream(file, &fh->vbi_q, wait);
- q = &fh->vbi_q;
- } else {
- DEB_D("using video queue\n");
- q = &fh->video_q;
- }
-
- if (!list_empty(&q->stream))
- buf = list_entry(q->stream.next, struct videobuf_buffer, stream);
-
- if (!buf) {
- DEB_D("buf == NULL!\n");
- return res | EPOLLERR;
- }
-
- poll_wait(file, &buf->done, wait);
- if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) {
- DEB_D("poll succeeded!\n");
- return res | EPOLLIN | EPOLLRDNORM;
- }
-
- DEB_D("nothing to poll for, buf->state:%d\n", buf->state);
- return res;
-}
-
-static __poll_t fops_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct video_device *vdev = video_devdata(file);
- __poll_t res;
-
- mutex_lock(vdev->lock);
- res = __fops_poll(file, wait);
- mutex_unlock(vdev->lock);
- return res;
-}
-
-static ssize_t fops_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_fh *fh = file->private_data;
- int ret;
-
- switch (vdev->vfl_type) {
- case VFL_TYPE_VIDEO:
-/*
- DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun",
- file, data, (unsigned long)count);
-*/
- return saa7146_video_uops.read(file,data,count,ppos);
- case VFL_TYPE_VBI:
-/*
- DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n",
- file, data, (unsigned long)count);
-*/
- if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) {
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
- ret = saa7146_vbi_uops.read(file, data, count, ppos);
- mutex_unlock(vdev->lock);
- return ret;
- }
- return -EINVAL;
- default:
- BUG();
- }
-}
-
-static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_fh *fh = file->private_data;
- int ret;
-
- switch (vdev->vfl_type) {
- case VFL_TYPE_VIDEO:
- return -EINVAL;
- case VFL_TYPE_VBI:
- if (fh->dev->ext_vv_data->vbi_fops.write) {
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
- ret = fh->dev->ext_vv_data->vbi_fops.write(file, data, count, ppos);
- mutex_unlock(vdev->lock);
- return ret;
- }
- return -EINVAL;
- default:
- BUG();
- }
-}
-
-static const struct v4l2_file_operations video_fops =
-{
- .owner = THIS_MODULE,
- .open = fops_open,
- .release = fops_release,
- .read = fops_read,
- .write = fops_write,
- .poll = fops_poll,
- .mmap = fops_mmap,
- .unlocked_ioctl = video_ioctl2,
-};
-
-static void vv_callback(struct saa7146_dev *dev, unsigned long status)
-{
- u32 isr = status;
-
- DEB_INT("dev:%p, isr:0x%08x\n", dev, (u32)status);
-
- if (0 != (isr & (MASK_27))) {
- DEB_INT("irq: RPS0 (0x%08x)\n", isr);
- saa7146_video_uops.irq_done(dev,isr);
- }
-
- if (0 != (isr & (MASK_28))) {
- u32 mc2 = saa7146_read(dev, MC2);
- if( 0 != (mc2 & MASK_15)) {
- DEB_INT("irq: RPS1 vbi workaround (0x%08x)\n", isr);
- wake_up(&dev->vv_data->vbi_wq);
- saa7146_write(dev,MC2, MASK_31);
- return;
- }
- DEB_INT("irq: RPS1 (0x%08x)\n", isr);
- saa7146_vbi_uops.irq_done(dev,isr);
- }
-}
-
-static const struct v4l2_ctrl_ops saa7146_ctrl_ops = {
- .s_ctrl = saa7146_s_ctrl,
-};
-
-int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
-{
- struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
- struct v4l2_pix_format *fmt;
- struct v4l2_vbi_format *vbi;
- struct saa7146_vv *vv;
- int err;
-
- err = v4l2_device_register(&dev->pci->dev, &dev->v4l2_dev);
- if (err)
- return err;
-
- v4l2_ctrl_handler_init(hdl, 6);
- v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops,
- V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
- v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops,
- V4L2_CID_CONTRAST, 0, 127, 1, 64);
- v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops,
- V4L2_CID_SATURATION, 0, 127, 1, 64);
- v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops,
- V4L2_CID_VFLIP, 0, 1, 1, 0);
- v4l2_ctrl_new_std(hdl, &saa7146_ctrl_ops,
- V4L2_CID_HFLIP, 0, 1, 1, 0);
- if (hdl->error) {
- err = hdl->error;
- v4l2_ctrl_handler_free(hdl);
- v4l2_device_unregister(&dev->v4l2_dev);
- return err;
- }
- dev->v4l2_dev.ctrl_handler = hdl;
-
- vv = kzalloc(sizeof(struct saa7146_vv), GFP_KERNEL);
- if (vv == NULL) {
- ERR("out of memory. aborting.\n");
- v4l2_ctrl_handler_free(hdl);
- v4l2_device_unregister(&dev->v4l2_dev);
- return -ENOMEM;
- }
- ext_vv->vid_ops = saa7146_video_ioctl_ops;
- ext_vv->vbi_ops = saa7146_vbi_ioctl_ops;
- ext_vv->core_ops = &saa7146_video_ioctl_ops;
-
- DEB_EE("dev:%p\n", dev);
-
- /* set default values for video parts of the saa7146 */
- saa7146_write(dev, BCS_CTRL, 0x80400040);
-
- /* enable video-port pins */
- saa7146_write(dev, MC1, (MASK_10 | MASK_26));
-
- /* save per-device extension data (one extension can
- handle different devices that might need different
- configuration data) */
- dev->ext_vv_data = ext_vv;
-
- vv->d_clipping.cpu_addr =
- dma_alloc_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM,
- &vv->d_clipping.dma_handle, GFP_KERNEL);
- if( NULL == vv->d_clipping.cpu_addr ) {
- ERR("out of memory. aborting.\n");
- kfree(vv);
- v4l2_ctrl_handler_free(hdl);
- v4l2_device_unregister(&dev->v4l2_dev);
- return -ENOMEM;
- }
-
- saa7146_video_uops.init(dev,vv);
- if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
- saa7146_vbi_uops.init(dev,vv);
-
- vv->ov_fb.fmt.width = vv->standard->h_max_out;
- vv->ov_fb.fmt.height = vv->standard->v_max_out;
- vv->ov_fb.fmt.pixelformat = V4L2_PIX_FMT_RGB565;
- vv->ov_fb.fmt.bytesperline = 2 * vv->ov_fb.fmt.width;
- vv->ov_fb.fmt.sizeimage = vv->ov_fb.fmt.bytesperline * vv->ov_fb.fmt.height;
- vv->ov_fb.fmt.colorspace = V4L2_COLORSPACE_SRGB;
-
- fmt = &vv->video_fmt;
- fmt->width = 384;
- fmt->height = 288;
- fmt->pixelformat = V4L2_PIX_FMT_BGR24;
- fmt->field = V4L2_FIELD_ANY;
- fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
- fmt->bytesperline = 3 * fmt->width;
- fmt->sizeimage = fmt->bytesperline * fmt->height;
-
- vbi = &vv->vbi_fmt;
- vbi->sampling_rate = 27000000;
- vbi->offset = 248; /* todo */
- vbi->samples_per_line = 720 * 2;
- vbi->sample_format = V4L2_PIX_FMT_GREY;
-
- /* fixme: this only works for PAL */
- vbi->start[0] = 5;
- vbi->count[0] = 16;
- vbi->start[1] = 312;
- vbi->count[1] = 16;
-
- timer_setup(&vv->vbi_read_timeout, NULL, 0);
-
- vv->ov_fb.capability = V4L2_FBUF_CAP_LIST_CLIPPING;
- vv->ov_fb.flags = V4L2_FBUF_FLAG_PRIMARY;
- dev->vv_data = vv;
- dev->vv_callback = &vv_callback;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(saa7146_vv_init);
-
-int saa7146_vv_release(struct saa7146_dev* dev)
-{
- struct saa7146_vv *vv = dev->vv_data;
-
- DEB_EE("dev:%p\n", dev);
-
- v4l2_device_unregister(&dev->v4l2_dev);
- dma_free_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM,
- vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle);
- v4l2_ctrl_handler_free(&dev->ctrl_handler);
- kfree(vv);
- dev->vv_data = NULL;
- dev->vv_callback = NULL;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(saa7146_vv_release);
-
-int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev,
- char *name, int type)
-{
- int err;
- int i;
-
- DEB_EE("dev:%p, name:'%s', type:%d\n", dev, name, type);
-
- vfd->fops = &video_fops;
- if (type == VFL_TYPE_VIDEO)
- vfd->ioctl_ops = &dev->ext_vv_data->vid_ops;
- else
- vfd->ioctl_ops = &dev->ext_vv_data->vbi_ops;
- vfd->release = video_device_release_empty;
- vfd->lock = &dev->v4l2_lock;
- vfd->v4l2_dev = &dev->v4l2_dev;
- vfd->tvnorms = 0;
- for (i = 0; i < dev->ext_vv_data->num_stds; i++)
- vfd->tvnorms |= dev->ext_vv_data->stds[i].id;
- strscpy(vfd->name, name, sizeof(vfd->name));
- vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY |
- V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
- vfd->device_caps |= dev->ext_vv_data->capabilities;
- if (type == VFL_TYPE_VIDEO)
- vfd->device_caps &=
- ~(V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_OUTPUT);
- else
- vfd->device_caps &=
- ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | V4L2_CAP_AUDIO);
- video_set_drvdata(vfd, dev);
-
- err = video_register_device(vfd, type, -1);
- if (err < 0) {
- ERR("cannot register v4l2 device. skipping.\n");
- return err;
- }
-
- pr_info("%s: registered device %s [v4l2]\n",
- dev->name, video_device_node_name(vfd));
- return 0;
-}
-EXPORT_SYMBOL_GPL(saa7146_register_device);
-
-int saa7146_unregister_device(struct video_device *vfd, struct saa7146_dev *dev)
-{
- DEB_EE("dev:%p\n", dev);
-
- video_unregister_device(vfd);
- return 0;
-}
-EXPORT_SYMBOL_GPL(saa7146_unregister_device);
-
-static int __init saa7146_vv_init_module(void)
-{
- return 0;
-}
-
-
-static void __exit saa7146_vv_cleanup_module(void)
-{
-}
-
-module_init(saa7146_vv_init_module);
-module_exit(saa7146_vv_cleanup_module);
-
-MODULE_AUTHOR("Michael Hunold <michael@mihu.de>");
-MODULE_DESCRIPTION("video4linux driver for saa7146-based hardware");
-MODULE_LICENSE("GPL");
diff --git a/drivers/media/common/saa7146/saa7146_hlp.c b/drivers/media/common/saa7146/saa7146_hlp.c
deleted file mode 100644
index 6c9946a402ee..000000000000
--- a/drivers/media/common/saa7146/saa7146_hlp.c
+++ /dev/null
@@ -1,1046 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <media/drv-intf/saa7146_vv.h>
-
-static void calculate_output_format_register(struct saa7146_dev* saa, u32 palette, u32* clip_format)
-{
- /* clear out the necessary bits */
- *clip_format &= 0x0000ffff;
- /* set these bits new */
- *clip_format |= (( ((palette&0xf00)>>8) << 30) | ((palette&0x00f) << 24) | (((palette&0x0f0)>>4) << 16));
-}
-
-static void calculate_hps_source_and_sync(struct saa7146_dev *dev, int source, int sync, u32* hps_ctrl)
-{
- *hps_ctrl &= ~(MASK_30 | MASK_31 | MASK_28);
- *hps_ctrl |= (source << 30) | (sync << 28);
-}
-
-static void calculate_hxo_and_hyo(struct saa7146_vv *vv, u32* hps_h_scale, u32* hps_ctrl)
-{
- int hyo = 0, hxo = 0;
-
- hyo = vv->standard->v_offset;
- hxo = vv->standard->h_offset;
-
- *hps_h_scale &= ~(MASK_B0 | 0xf00);
- *hps_h_scale |= (hxo << 0);
-
- *hps_ctrl &= ~(MASK_W0 | MASK_B2);
- *hps_ctrl |= (hyo << 12);
-}
-
-/* helper functions for the calculation of the horizontal- and vertical
- scaling registers, clip-format-register etc ...
- these functions take pointers to the (most-likely read-out
- original-values) and manipulate them according to the requested
- changes.
-*/
-
-/* hps_coeff used for CXY and CXUV; scale 1/1 -> scale 1/64 */
-static struct {
- u16 hps_coeff;
- u16 weight_sum;
-} hps_h_coeff_tab [] = {
- {0x00, 2}, {0x02, 4}, {0x00, 4}, {0x06, 8}, {0x02, 8},
- {0x08, 8}, {0x00, 8}, {0x1E, 16}, {0x0E, 8}, {0x26, 8},
- {0x06, 8}, {0x42, 8}, {0x02, 8}, {0x80, 8}, {0x00, 8},
- {0xFE, 16}, {0xFE, 8}, {0x7E, 8}, {0x7E, 8}, {0x3E, 8},
- {0x3E, 8}, {0x1E, 8}, {0x1E, 8}, {0x0E, 8}, {0x0E, 8},
- {0x06, 8}, {0x06, 8}, {0x02, 8}, {0x02, 8}, {0x00, 8},
- {0x00, 8}, {0xFE, 16}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8},
- {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8},
- {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8},
- {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0xFE, 8}, {0x7E, 8},
- {0x7E, 8}, {0x3E, 8}, {0x3E, 8}, {0x1E, 8}, {0x1E, 8},
- {0x0E, 8}, {0x0E, 8}, {0x06, 8}, {0x06, 8}, {0x02, 8},
- {0x02, 8}, {0x00, 8}, {0x00, 8}, {0xFE, 16}
-};
-
-/* table of attenuation values for horizontal scaling */
-static u8 h_attenuation[] = { 1, 2, 4, 8, 2, 4, 8, 16, 0};
-
-/* calculate horizontal scale registers */
-static int calculate_h_scale_registers(struct saa7146_dev *dev,
- int in_x, int out_x, int flip_lr,
- u32* hps_ctrl, u32* hps_v_gain, u32* hps_h_prescale, u32* hps_h_scale)
-{
- /* horizontal prescaler */
- u32 dcgx = 0, xpsc = 0, xacm = 0, cxy = 0, cxuv = 0;
- /* horizontal scaler */
- u32 xim = 0, xp = 0, xsci =0;
- /* vertical scale & gain */
- u32 pfuv = 0;
-
- /* helper variables */
- u32 h_atten = 0, i = 0;
-
- if ( 0 == out_x ) {
- return -EINVAL;
- }
-
- /* mask out vanity-bit */
- *hps_ctrl &= ~MASK_29;
-
- /* calculate prescale-(xspc)-value: [n .. 1/2) : 1
- [1/2 .. 1/3) : 2
- [1/3 .. 1/4) : 3
- ... */
- if (in_x > out_x) {
- xpsc = in_x / out_x;
- }
- else {
- /* zooming */
- xpsc = 1;
- }
-
- /* if flip_lr-bit is set, number of pixels after
- horizontal prescaling must be < 384 */
- if ( 0 != flip_lr ) {
-
- /* set vanity bit */
- *hps_ctrl |= MASK_29;
-
- while (in_x / xpsc >= 384 )
- xpsc++;
- }
- /* if zooming is wanted, number of pixels after
- horizontal prescaling must be < 768 */
- else {
- while ( in_x / xpsc >= 768 )
- xpsc++;
- }
-
- /* maximum prescale is 64 (p.69) */
- if ( xpsc > 64 )
- xpsc = 64;
-
- /* keep xacm clear*/
- xacm = 0;
-
- /* set horizontal filter parameters (CXY = CXUV) */
- cxy = hps_h_coeff_tab[( (xpsc - 1) < 63 ? (xpsc - 1) : 63 )].hps_coeff;
- cxuv = cxy;
-
- /* calculate and set horizontal fine scale (xsci) */
-
- /* bypass the horizontal scaler ? */
- if ( (in_x == out_x) && ( 1 == xpsc ) )
- xsci = 0x400;
- else
- xsci = ( (1024 * in_x) / (out_x * xpsc) ) + xpsc;
-
- /* set start phase for horizontal fine scale (xp) to 0 */
- xp = 0;
-
- /* set xim, if we bypass the horizontal scaler */
- if ( 0x400 == xsci )
- xim = 1;
- else
- xim = 0;
-
- /* if the prescaler is bypassed, enable horizontal
- accumulation mode (xacm) and clear dcgx */
- if( 1 == xpsc ) {
- xacm = 1;
- dcgx = 0;
- } else {
- xacm = 0;
- /* get best match in the table of attenuations
- for horizontal scaling */
- h_atten = hps_h_coeff_tab[( (xpsc - 1) < 63 ? (xpsc - 1) : 63 )].weight_sum;
-
- for (i = 0; h_attenuation[i] != 0; i++) {
- if (h_attenuation[i] >= h_atten)
- break;
- }
-
- dcgx = i;
- }
-
- /* the horizontal scaling increment controls the UV filter
- to reduce the bandwidth to improve the display quality,
- so set it ... */
- if ( xsci == 0x400)
- pfuv = 0x00;
- else if ( xsci < 0x600)
- pfuv = 0x01;
- else if ( xsci < 0x680)
- pfuv = 0x11;
- else if ( xsci < 0x700)
- pfuv = 0x22;
- else
- pfuv = 0x33;
-
-
- *hps_v_gain &= MASK_W0|MASK_B2;
- *hps_v_gain |= (pfuv << 24);
-
- *hps_h_scale &= ~(MASK_W1 | 0xf000);
- *hps_h_scale |= (xim << 31) | (xp << 24) | (xsci << 12);
-
- *hps_h_prescale |= (dcgx << 27) | ((xpsc-1) << 18) | (xacm << 17) | (cxy << 8) | (cxuv << 0);
-
- return 0;
-}
-
-static struct {
- u16 hps_coeff;
- u16 weight_sum;
-} hps_v_coeff_tab [] = {
- {0x0100, 2}, {0x0102, 4}, {0x0300, 4}, {0x0106, 8}, {0x0502, 8},
- {0x0708, 8}, {0x0F00, 8}, {0x011E, 16}, {0x110E, 16}, {0x1926, 16},
- {0x3906, 16}, {0x3D42, 16}, {0x7D02, 16}, {0x7F80, 16}, {0xFF00, 16},
- {0x01FE, 32}, {0x01FE, 32}, {0x817E, 32}, {0x817E, 32}, {0xC13E, 32},
- {0xC13E, 32}, {0xE11E, 32}, {0xE11E, 32}, {0xF10E, 32}, {0xF10E, 32},
- {0xF906, 32}, {0xF906, 32}, {0xFD02, 32}, {0xFD02, 32}, {0xFF00, 32},
- {0xFF00, 32}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64},
- {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64},
- {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64},
- {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x01FE, 64}, {0x817E, 64},
- {0x817E, 64}, {0xC13E, 64}, {0xC13E, 64}, {0xE11E, 64}, {0xE11E, 64},
- {0xF10E, 64}, {0xF10E, 64}, {0xF906, 64}, {0xF906, 64}, {0xFD02, 64},
- {0xFD02, 64}, {0xFF00, 64}, {0xFF00, 64}, {0x01FE, 128}
-};
-
-/* table of attenuation values for vertical scaling */
-static u16 v_attenuation[] = { 2, 4, 8, 16, 32, 64, 128, 256, 0};
-
-/* calculate vertical scale registers */
-static int calculate_v_scale_registers(struct saa7146_dev *dev, enum v4l2_field field,
- int in_y, int out_y, u32* hps_v_scale, u32* hps_v_gain)
-{
- int lpi = 0;
-
- /* vertical scaling */
- u32 yacm = 0, ysci = 0, yacl = 0, ypo = 0, ype = 0;
- /* vertical scale & gain */
- u32 dcgy = 0, cya_cyb = 0;
-
- /* helper variables */
- u32 v_atten = 0, i = 0;
-
- /* error, if vertical zooming */
- if ( in_y < out_y ) {
- return -EINVAL;
- }
-
- /* linear phase interpolation may be used
- if scaling is between 1 and 1/2 (both fields used)
- or scaling is between 1/2 and 1/4 (if only one field is used) */
-
- if (V4L2_FIELD_HAS_BOTH(field)) {
- if( 2*out_y >= in_y) {
- lpi = 1;
- }
- } else if (field == V4L2_FIELD_TOP
- || field == V4L2_FIELD_ALTERNATE
- || field == V4L2_FIELD_BOTTOM) {
- if( 4*out_y >= in_y ) {
- lpi = 1;
- }
- out_y *= 2;
- }
- if( 0 != lpi ) {
-
- yacm = 0;
- yacl = 0;
- cya_cyb = 0x00ff;
-
- /* calculate scaling increment */
- if ( in_y > out_y )
- ysci = ((1024 * in_y) / (out_y + 1)) - 1024;
- else
- ysci = 0;
-
- dcgy = 0;
-
- /* calculate ype and ypo */
- ype = ysci / 16;
- ypo = ype + (ysci / 64);
-
- } else {
- yacm = 1;
-
- /* calculate scaling increment */
- ysci = (((10 * 1024 * (in_y - out_y - 1)) / in_y) + 9) / 10;
-
- /* calculate ype and ypo */
- ypo = ype = ((ysci + 15) / 16);
-
- /* the sequence length interval (yacl) has to be set according
- to the prescale value, e.g. [n .. 1/2) : 0
- [1/2 .. 1/3) : 1
- [1/3 .. 1/4) : 2
- ... */
- if ( ysci < 512) {
- yacl = 0;
- } else {
- yacl = ( ysci / (1024 - ysci) );
- }
-
- /* get filter coefficients for cya, cyb from table hps_v_coeff_tab */
- cya_cyb = hps_v_coeff_tab[ (yacl < 63 ? yacl : 63 ) ].hps_coeff;
-
- /* get best match in the table of attenuations for vertical scaling */
- v_atten = hps_v_coeff_tab[ (yacl < 63 ? yacl : 63 ) ].weight_sum;
-
- for (i = 0; v_attenuation[i] != 0; i++) {
- if (v_attenuation[i] >= v_atten)
- break;
- }
-
- dcgy = i;
- }
-
- /* ypo and ype swapped in spec ? */
- *hps_v_scale |= (yacm << 31) | (ysci << 21) | (yacl << 15) | (ypo << 8 ) | (ype << 1);
-
- *hps_v_gain &= ~(MASK_W0|MASK_B2);
- *hps_v_gain |= (dcgy << 16) | (cya_cyb << 0);
-
- return 0;
-}
-
-/* simple bubble-sort algorithm with duplicate elimination */
-static int sort_and_eliminate(u32* values, int* count)
-{
- int low = 0, high = 0, top = 0;
- int cur = 0, next = 0;
-
- /* sanity checks */
- if( (0 > *count) || (NULL == values) ) {
- return -EINVAL;
- }
-
- /* bubble sort the first @count items of the array @values */
- for( top = *count; top > 0; top--) {
- for( low = 0, high = 1; high < top; low++, high++) {
- if( values[low] > values[high] )
- swap(values[low], values[high]);
- }
- }
-
- /* remove duplicate items */
- for( cur = 0, next = 1; next < *count; next++) {
- if( values[cur] != values[next])
- values[++cur] = values[next];
- }
-
- *count = cur + 1;
-
- return 0;
-}
-
-static void calculate_clipping_registers_rect(struct saa7146_dev *dev, struct saa7146_fh *fh,
- struct saa7146_video_dma *vdma2, u32* clip_format, u32* arbtr_ctrl, enum v4l2_field field)
-{
- struct saa7146_vv *vv = dev->vv_data;
- __le32 *clipping = vv->d_clipping.cpu_addr;
-
- int width = vv->ov.win.w.width;
- int height = vv->ov.win.w.height;
- int clipcount = vv->ov.nclips;
-
- u32 line_list[32];
- u32 pixel_list[32];
- int numdwords = 0;
-
- int i = 0, j = 0;
- int cnt_line = 0, cnt_pixel = 0;
-
- int x[32], y[32], w[32], h[32];
-
- /* clear out memory */
- memset(&line_list[0], 0x00, sizeof(u32)*32);
- memset(&pixel_list[0], 0x00, sizeof(u32)*32);
- memset(clipping, 0x00, SAA7146_CLIPPING_MEM);
-
- /* fill the line and pixel-lists */
- for(i = 0; i < clipcount; i++) {
- int l = 0, r = 0, t = 0, b = 0;
-
- x[i] = vv->ov.clips[i].c.left;
- y[i] = vv->ov.clips[i].c.top;
- w[i] = vv->ov.clips[i].c.width;
- h[i] = vv->ov.clips[i].c.height;
-
- if( w[i] < 0) {
- x[i] += w[i]; w[i] = -w[i];
- }
- if( h[i] < 0) {
- y[i] += h[i]; h[i] = -h[i];
- }
- if( x[i] < 0) {
- w[i] += x[i]; x[i] = 0;
- }
- if( y[i] < 0) {
- h[i] += y[i]; y[i] = 0;
- }
- if( 0 != vv->vflip ) {
- y[i] = height - y[i] - h[i];
- }
-
- l = x[i];
- r = x[i]+w[i];
- t = y[i];
- b = y[i]+h[i];
-
- /* insert left/right coordinates */
- pixel_list[ 2*i ] = min_t(int, l, width);
- pixel_list[(2*i)+1] = min_t(int, r, width);
- /* insert top/bottom coordinates */
- line_list[ 2*i ] = min_t(int, t, height);
- line_list[(2*i)+1] = min_t(int, b, height);
- }
-
- /* sort and eliminate lists */
- cnt_line = cnt_pixel = 2*clipcount;
- sort_and_eliminate( &pixel_list[0], &cnt_pixel );
- sort_and_eliminate( &line_list[0], &cnt_line );
-
- /* calculate the number of used u32s */
- numdwords = max_t(int, (cnt_line+1), (cnt_pixel+1))*2;
- numdwords = max_t(int, 4, numdwords);
- numdwords = min_t(int, 64, numdwords);
-
- /* fill up cliptable */
- for(i = 0; i < cnt_pixel; i++) {
- clipping[2*i] |= cpu_to_le32(pixel_list[i] << 16);
- }
- for(i = 0; i < cnt_line; i++) {
- clipping[(2*i)+1] |= cpu_to_le32(line_list[i] << 16);
- }
-
- /* fill up cliptable with the display infos */
- for(j = 0; j < clipcount; j++) {
-
- for(i = 0; i < cnt_pixel; i++) {
-
- if( x[j] < 0)
- x[j] = 0;
-
- if( pixel_list[i] < (x[j] + w[j])) {
-
- if ( pixel_list[i] >= x[j] ) {
- clipping[2*i] |= cpu_to_le32(1 << j);
- }
- }
- }
- for(i = 0; i < cnt_line; i++) {
-
- if( y[j] < 0)
- y[j] = 0;
-
- if( line_list[i] < (y[j] + h[j]) ) {
-
- if( line_list[i] >= y[j] ) {
- clipping[(2*i)+1] |= cpu_to_le32(1 << j);
- }
- }
- }
- }
-
- /* adjust arbitration control register */
- *arbtr_ctrl &= 0xffff00ff;
- *arbtr_ctrl |= 0x00001c00;
-
- vdma2->base_even = vv->d_clipping.dma_handle;
- vdma2->base_odd = vv->d_clipping.dma_handle;
- vdma2->prot_addr = vv->d_clipping.dma_handle+((sizeof(u32))*(numdwords));
- vdma2->base_page = 0x04;
- vdma2->pitch = 0x00;
- vdma2->num_line_byte = (0 << 16 | (sizeof(u32))*(numdwords-1) );
-
- /* set clipping-mode. this depends on the field(s) used */
- *clip_format &= 0xfffffff7;
- if (V4L2_FIELD_HAS_BOTH(field)) {
- *clip_format |= 0x00000008;
- } else {
- *clip_format |= 0x00000000;
- }
-}
-
-/* disable clipping */
-static void saa7146_disable_clipping(struct saa7146_dev *dev)
-{
- u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL);
-
- /* mask out relevant bits (=lower word)*/
- clip_format &= MASK_W1;
-
- /* upload clipping-registers*/
- saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format);
- saa7146_write(dev, MC2, (MASK_05 | MASK_21));
-
- /* disable video dma2 */
- saa7146_write(dev, MC1, MASK_21);
-}
-
-static void saa7146_set_clipping_rect(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- enum v4l2_field field = vv->ov.win.field;
- struct saa7146_video_dma vdma2;
- u32 clip_format;
- u32 arbtr_ctrl;
-
- /* check clipcount, disable clipping if clipcount == 0*/
- if (vv->ov.nclips == 0) {
- saa7146_disable_clipping(dev);
- return;
- }
-
- clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL);
- arbtr_ctrl = saa7146_read(dev, PCI_BT_V1);
-
- calculate_clipping_registers_rect(dev, fh, &vdma2, &clip_format, &arbtr_ctrl, field);
-
- /* set clipping format */
- clip_format &= 0xffff0008;
- clip_format |= (SAA7146_CLIPPING_RECT << 4);
-
- /* prepare video dma2 */
- saa7146_write(dev, BASE_EVEN2, vdma2.base_even);
- saa7146_write(dev, BASE_ODD2, vdma2.base_odd);
- saa7146_write(dev, PROT_ADDR2, vdma2.prot_addr);
- saa7146_write(dev, BASE_PAGE2, vdma2.base_page);
- saa7146_write(dev, PITCH2, vdma2.pitch);
- saa7146_write(dev, NUM_LINE_BYTE2, vdma2.num_line_byte);
-
- /* prepare the rest */
- saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format);
- saa7146_write(dev, PCI_BT_V1, arbtr_ctrl);
-
- /* upload clip_control-register, clipping-registers, enable video dma2 */
- saa7146_write(dev, MC2, (MASK_05 | MASK_21 | MASK_03 | MASK_19));
- saa7146_write(dev, MC1, (MASK_05 | MASK_21));
-}
-
-static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, enum v4l2_field field)
-{
- struct saa7146_vv *vv = dev->vv_data;
-
- int source = vv->current_hps_source;
- int sync = vv->current_hps_sync;
-
- u32 hps_v_scale = 0, hps_v_gain = 0, hps_ctrl = 0, hps_h_prescale = 0, hps_h_scale = 0;
-
- /* set vertical scale */
- hps_v_scale = 0; /* all bits get set by the function-call */
- hps_v_gain = 0; /* fixme: saa7146_read(dev, HPS_V_GAIN);*/
- calculate_v_scale_registers(dev, field, vv->standard->v_field*2, height, &hps_v_scale, &hps_v_gain);
-
- /* set horizontal scale */
- hps_ctrl = 0;
- hps_h_prescale = 0; /* all bits get set in the function */
- hps_h_scale = 0;
- calculate_h_scale_registers(dev, vv->standard->h_pixels, width, vv->hflip, &hps_ctrl, &hps_v_gain, &hps_h_prescale, &hps_h_scale);
-
- /* set hyo and hxo */
- calculate_hxo_and_hyo(vv, &hps_h_scale, &hps_ctrl);
- calculate_hps_source_and_sync(dev, source, sync, &hps_ctrl);
-
- /* write out new register contents */
- saa7146_write(dev, HPS_V_SCALE, hps_v_scale);
- saa7146_write(dev, HPS_V_GAIN, hps_v_gain);
- saa7146_write(dev, HPS_CTRL, hps_ctrl);
- saa7146_write(dev, HPS_H_PRESCALE,hps_h_prescale);
- saa7146_write(dev, HPS_H_SCALE, hps_h_scale);
-
- /* upload shadow-ram registers */
- saa7146_write(dev, MC2, (MASK_05 | MASK_06 | MASK_21 | MASK_22) );
-}
-
-/* calculate the new memory offsets for a desired position */
-static void saa7146_set_position(struct saa7146_dev *dev, int w_x, int w_y, int w_height, enum v4l2_field field, u32 pixelformat)
-{
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pixelformat);
-
- int b_depth = vv->ov_fmt->depth;
- int b_bpl = vv->ov_fb.fmt.bytesperline;
- /* The unsigned long cast is to remove a 64-bit compile warning since
- it looks like a 64-bit address is cast to a 32-bit value, even
- though the base pointer is really a 32-bit physical address that
- goes into a 32-bit DMA register.
- FIXME: might not work on some 64-bit platforms, but see the FIXME
- in struct v4l2_framebuffer (videodev2.h) for that.
- */
- u32 base = (u32)(unsigned long)vv->ov_fb.base;
-
- struct saa7146_video_dma vdma1;
-
- /* calculate memory offsets for picture, look if we shall top-down-flip */
- vdma1.pitch = 2*b_bpl;
- if ( 0 == vv->vflip ) {
- vdma1.base_even = base + (w_y * (vdma1.pitch/2)) + (w_x * (b_depth / 8));
- vdma1.base_odd = vdma1.base_even + (vdma1.pitch / 2);
- vdma1.prot_addr = vdma1.base_even + (w_height * (vdma1.pitch / 2));
- }
- else {
- vdma1.base_even = base + ((w_y+w_height) * (vdma1.pitch/2)) + (w_x * (b_depth / 8));
- vdma1.base_odd = vdma1.base_even - (vdma1.pitch / 2);
- vdma1.prot_addr = vdma1.base_odd - (w_height * (vdma1.pitch / 2));
- }
-
- if (V4L2_FIELD_HAS_BOTH(field)) {
- } else if (field == V4L2_FIELD_ALTERNATE) {
- /* fixme */
- vdma1.base_odd = vdma1.prot_addr;
- vdma1.pitch /= 2;
- } else if (field == V4L2_FIELD_TOP) {
- vdma1.base_odd = vdma1.prot_addr;
- vdma1.pitch /= 2;
- } else if (field == V4L2_FIELD_BOTTOM) {
- vdma1.base_odd = vdma1.base_even;
- vdma1.base_even = vdma1.prot_addr;
- vdma1.pitch /= 2;
- }
-
- if ( 0 != vv->vflip ) {
- vdma1.pitch *= -1;
- }
-
- vdma1.base_page = sfmt->swap;
- vdma1.num_line_byte = (vv->standard->v_field<<16)+vv->standard->h_pixels;
-
- saa7146_write_out_dma(dev, 1, &vdma1);
-}
-
-static void saa7146_set_output_format(struct saa7146_dev *dev, unsigned long palette)
-{
- u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL);
-
- /* call helper function */
- calculate_output_format_register(dev,palette,&clip_format);
-
- /* update the hps registers */
- saa7146_write(dev, CLIP_FORMAT_CTRL, clip_format);
- saa7146_write(dev, MC2, (MASK_05 | MASK_21));
-}
-
-/* select input-source */
-void saa7146_set_hps_source_and_sync(struct saa7146_dev *dev, int source, int sync)
-{
- struct saa7146_vv *vv = dev->vv_data;
- u32 hps_ctrl = 0;
-
- /* read old state */
- hps_ctrl = saa7146_read(dev, HPS_CTRL);
-
- hps_ctrl &= ~( MASK_31 | MASK_30 | MASK_28 );
- hps_ctrl |= (source << 30) | (sync << 28);
-
- /* write back & upload register */
- saa7146_write(dev, HPS_CTRL, hps_ctrl);
- saa7146_write(dev, MC2, (MASK_05 | MASK_21));
-
- vv->current_hps_source = source;
- vv->current_hps_sync = sync;
-}
-EXPORT_SYMBOL_GPL(saa7146_set_hps_source_and_sync);
-
-int saa7146_enable_overlay(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- saa7146_set_window(dev, vv->ov.win.w.width, vv->ov.win.w.height, vv->ov.win.field);
- saa7146_set_position(dev, vv->ov.win.w.left, vv->ov.win.w.top, vv->ov.win.w.height, vv->ov.win.field, vv->ov_fmt->pixelformat);
- saa7146_set_output_format(dev, vv->ov_fmt->trans);
- saa7146_set_clipping_rect(fh);
-
- /* enable video dma1 */
- saa7146_write(dev, MC1, (MASK_06 | MASK_22));
- return 0;
-}
-
-void saa7146_disable_overlay(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
-
- /* disable clipping + video dma1 */
- saa7146_disable_clipping(dev);
- saa7146_write(dev, MC1, MASK_22);
-}
-
-void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma)
-{
- int where = 0;
-
- if( which < 1 || which > 3) {
- return;
- }
-
- /* calculate starting address */
- where = (which-1)*0x18;
-
- saa7146_write(dev, where, vdma->base_odd);
- saa7146_write(dev, where+0x04, vdma->base_even);
- saa7146_write(dev, where+0x08, vdma->prot_addr);
- saa7146_write(dev, where+0x0c, vdma->pitch);
- saa7146_write(dev, where+0x10, vdma->base_page);
- saa7146_write(dev, where+0x14, vdma->num_line_byte);
-
- /* upload */
- saa7146_write(dev, MC2, (MASK_02<<(which-1))|(MASK_18<<(which-1)));
-/*
- printk("vdma%d.base_even: 0x%08x\n", which,vdma->base_even);
- printk("vdma%d.base_odd: 0x%08x\n", which,vdma->base_odd);
- printk("vdma%d.prot_addr: 0x%08x\n", which,vdma->prot_addr);
- printk("vdma%d.base_page: 0x%08x\n", which,vdma->base_page);
- printk("vdma%d.pitch: 0x%08x\n", which,vdma->pitch);
- printk("vdma%d.num_line_byte: 0x%08x\n", which,vdma->num_line_byte);
-*/
-}
-
-static int calculate_video_dma_grab_packed(struct saa7146_dev* dev, struct saa7146_buf *buf)
-{
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_video_dma vdma1;
-
- struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
-
- int width = buf->fmt->width;
- int height = buf->fmt->height;
- int bytesperline = buf->fmt->bytesperline;
- enum v4l2_field field = buf->fmt->field;
-
- int depth = sfmt->depth;
-
- DEB_CAP("[size=%dx%d,fields=%s]\n",
- width, height, v4l2_field_names[field]);
-
- if( bytesperline != 0) {
- vdma1.pitch = bytesperline*2;
- } else {
- vdma1.pitch = (width*depth*2)/8;
- }
- vdma1.num_line_byte = ((vv->standard->v_field<<16) + vv->standard->h_pixels);
- vdma1.base_page = buf->pt[0].dma | ME1 | sfmt->swap;
-
- if( 0 != vv->vflip ) {
- vdma1.prot_addr = buf->pt[0].offset;
- vdma1.base_even = buf->pt[0].offset+(vdma1.pitch/2)*height;
- vdma1.base_odd = vdma1.base_even - (vdma1.pitch/2);
- } else {
- vdma1.base_even = buf->pt[0].offset;
- vdma1.base_odd = vdma1.base_even + (vdma1.pitch/2);
- vdma1.prot_addr = buf->pt[0].offset+(vdma1.pitch/2)*height;
- }
-
- if (V4L2_FIELD_HAS_BOTH(field)) {
- } else if (field == V4L2_FIELD_ALTERNATE) {
- /* fixme */
- if ( vv->last_field == V4L2_FIELD_TOP ) {
- vdma1.base_odd = vdma1.prot_addr;
- vdma1.pitch /= 2;
- } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) {
- vdma1.base_odd = vdma1.base_even;
- vdma1.base_even = vdma1.prot_addr;
- vdma1.pitch /= 2;
- }
- } else if (field == V4L2_FIELD_TOP) {
- vdma1.base_odd = vdma1.prot_addr;
- vdma1.pitch /= 2;
- } else if (field == V4L2_FIELD_BOTTOM) {
- vdma1.base_odd = vdma1.base_even;
- vdma1.base_even = vdma1.prot_addr;
- vdma1.pitch /= 2;
- }
-
- if( 0 != vv->vflip ) {
- vdma1.pitch *= -1;
- }
-
- saa7146_write_out_dma(dev, 1, &vdma1);
- return 0;
-}
-
-static int calc_planar_422(struct saa7146_vv *vv, struct saa7146_buf *buf, struct saa7146_video_dma *vdma2, struct saa7146_video_dma *vdma3)
-{
- int height = buf->fmt->height;
- int width = buf->fmt->width;
-
- vdma2->pitch = width;
- vdma3->pitch = width;
-
- /* fixme: look at bytesperline! */
-
- if( 0 != vv->vflip ) {
- vdma2->prot_addr = buf->pt[1].offset;
- vdma2->base_even = ((vdma2->pitch/2)*height)+buf->pt[1].offset;
- vdma2->base_odd = vdma2->base_even - (vdma2->pitch/2);
-
- vdma3->prot_addr = buf->pt[2].offset;
- vdma3->base_even = ((vdma3->pitch/2)*height)+buf->pt[2].offset;
- vdma3->base_odd = vdma3->base_even - (vdma3->pitch/2);
- } else {
- vdma3->base_even = buf->pt[2].offset;
- vdma3->base_odd = vdma3->base_even + (vdma3->pitch/2);
- vdma3->prot_addr = (vdma3->pitch/2)*height+buf->pt[2].offset;
-
- vdma2->base_even = buf->pt[1].offset;
- vdma2->base_odd = vdma2->base_even + (vdma2->pitch/2);
- vdma2->prot_addr = (vdma2->pitch/2)*height+buf->pt[1].offset;
- }
-
- return 0;
-}
-
-static int calc_planar_420(struct saa7146_vv *vv, struct saa7146_buf *buf, struct saa7146_video_dma *vdma2, struct saa7146_video_dma *vdma3)
-{
- int height = buf->fmt->height;
- int width = buf->fmt->width;
-
- vdma2->pitch = width/2;
- vdma3->pitch = width/2;
-
- if( 0 != vv->vflip ) {
- vdma2->prot_addr = buf->pt[2].offset;
- vdma2->base_even = ((vdma2->pitch/2)*height)+buf->pt[2].offset;
- vdma2->base_odd = vdma2->base_even - (vdma2->pitch/2);
-
- vdma3->prot_addr = buf->pt[1].offset;
- vdma3->base_even = ((vdma3->pitch/2)*height)+buf->pt[1].offset;
- vdma3->base_odd = vdma3->base_even - (vdma3->pitch/2);
-
- } else {
- vdma3->base_even = buf->pt[2].offset;
- vdma3->base_odd = vdma3->base_even + (vdma3->pitch);
- vdma3->prot_addr = (vdma3->pitch/2)*height+buf->pt[2].offset;
-
- vdma2->base_even = buf->pt[1].offset;
- vdma2->base_odd = vdma2->base_even + (vdma2->pitch);
- vdma2->prot_addr = (vdma2->pitch/2)*height+buf->pt[1].offset;
- }
- return 0;
-}
-
-static int calculate_video_dma_grab_planar(struct saa7146_dev* dev, struct saa7146_buf *buf)
-{
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_video_dma vdma1;
- struct saa7146_video_dma vdma2;
- struct saa7146_video_dma vdma3;
-
- struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
-
- int width = buf->fmt->width;
- int height = buf->fmt->height;
- enum v4l2_field field = buf->fmt->field;
-
- BUG_ON(0 == buf->pt[0].dma);
- BUG_ON(0 == buf->pt[1].dma);
- BUG_ON(0 == buf->pt[2].dma);
-
- DEB_CAP("[size=%dx%d,fields=%s]\n",
- width, height, v4l2_field_names[field]);
-
- /* fixme: look at bytesperline! */
-
- /* fixme: what happens for user space buffers here?. The offsets are
- most likely wrong, this version here only works for page-aligned
- buffers, modifications to the pagetable-functions are necessary...*/
-
- vdma1.pitch = width*2;
- vdma1.num_line_byte = ((vv->standard->v_field<<16) + vv->standard->h_pixels);
- vdma1.base_page = buf->pt[0].dma | ME1;
-
- if( 0 != vv->vflip ) {
- vdma1.prot_addr = buf->pt[0].offset;
- vdma1.base_even = ((vdma1.pitch/2)*height)+buf->pt[0].offset;
- vdma1.base_odd = vdma1.base_even - (vdma1.pitch/2);
- } else {
- vdma1.base_even = buf->pt[0].offset;
- vdma1.base_odd = vdma1.base_even + (vdma1.pitch/2);
- vdma1.prot_addr = (vdma1.pitch/2)*height+buf->pt[0].offset;
- }
-
- vdma2.num_line_byte = 0; /* unused */
- vdma2.base_page = buf->pt[1].dma | ME1;
-
- vdma3.num_line_byte = 0; /* unused */
- vdma3.base_page = buf->pt[2].dma | ME1;
-
- switch( sfmt->depth ) {
- case 12: {
- calc_planar_420(vv,buf,&vdma2,&vdma3);
- break;
- }
- case 16: {
- calc_planar_422(vv,buf,&vdma2,&vdma3);
- break;
- }
- default: {
- return -1;
- }
- }
-
- if (V4L2_FIELD_HAS_BOTH(field)) {
- } else if (field == V4L2_FIELD_ALTERNATE) {
- /* fixme */
- vdma1.base_odd = vdma1.prot_addr;
- vdma1.pitch /= 2;
- vdma2.base_odd = vdma2.prot_addr;
- vdma2.pitch /= 2;
- vdma3.base_odd = vdma3.prot_addr;
- vdma3.pitch /= 2;
- } else if (field == V4L2_FIELD_TOP) {
- vdma1.base_odd = vdma1.prot_addr;
- vdma1.pitch /= 2;
- vdma2.base_odd = vdma2.prot_addr;
- vdma2.pitch /= 2;
- vdma3.base_odd = vdma3.prot_addr;
- vdma3.pitch /= 2;
- } else if (field == V4L2_FIELD_BOTTOM) {
- vdma1.base_odd = vdma1.base_even;
- vdma1.base_even = vdma1.prot_addr;
- vdma1.pitch /= 2;
- vdma2.base_odd = vdma2.base_even;
- vdma2.base_even = vdma2.prot_addr;
- vdma2.pitch /= 2;
- vdma3.base_odd = vdma3.base_even;
- vdma3.base_even = vdma3.prot_addr;
- vdma3.pitch /= 2;
- }
-
- if( 0 != vv->vflip ) {
- vdma1.pitch *= -1;
- vdma2.pitch *= -1;
- vdma3.pitch *= -1;
- }
-
- saa7146_write_out_dma(dev, 1, &vdma1);
- if( (sfmt->flags & FORMAT_BYTE_SWAP) != 0 ) {
- saa7146_write_out_dma(dev, 3, &vdma2);
- saa7146_write_out_dma(dev, 2, &vdma3);
- } else {
- saa7146_write_out_dma(dev, 2, &vdma2);
- saa7146_write_out_dma(dev, 3, &vdma3);
- }
- return 0;
-}
-
-static void program_capture_engine(struct saa7146_dev *dev, int planar)
-{
- struct saa7146_vv *vv = dev->vv_data;
- int count = 0;
-
- unsigned long e_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_E_FID_A : CMD_E_FID_B;
- unsigned long o_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_O_FID_A : CMD_O_FID_B;
-
- /* wait for o_fid_a/b / e_fid_a/b toggle only if rps register 0 is not set*/
- WRITE_RPS0(CMD_PAUSE | CMD_OAN | CMD_SIG0 | o_wait);
- WRITE_RPS0(CMD_PAUSE | CMD_OAN | CMD_SIG0 | e_wait);
-
- /* set rps register 0 */
- WRITE_RPS0(CMD_WR_REG | (1 << 8) | (MC2/4));
- WRITE_RPS0(MASK_27 | MASK_11);
-
- /* turn on video-dma1 */
- WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4));
- WRITE_RPS0(MASK_06 | MASK_22); /* => mask */
- WRITE_RPS0(MASK_06 | MASK_22); /* => values */
- if( 0 != planar ) {
- /* turn on video-dma2 */
- WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4));
- WRITE_RPS0(MASK_05 | MASK_21); /* => mask */
- WRITE_RPS0(MASK_05 | MASK_21); /* => values */
-
- /* turn on video-dma3 */
- WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4));
- WRITE_RPS0(MASK_04 | MASK_20); /* => mask */
- WRITE_RPS0(MASK_04 | MASK_20); /* => values */
- }
-
- /* wait for o_fid_a/b / e_fid_a/b toggle */
- if ( vv->last_field == V4L2_FIELD_INTERLACED ) {
- WRITE_RPS0(CMD_PAUSE | o_wait);
- WRITE_RPS0(CMD_PAUSE | e_wait);
- } else if ( vv->last_field == V4L2_FIELD_TOP ) {
- WRITE_RPS0(CMD_PAUSE | (vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? MASK_10 : MASK_09));
- WRITE_RPS0(CMD_PAUSE | o_wait);
- } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) {
- WRITE_RPS0(CMD_PAUSE | (vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? MASK_10 : MASK_09));
- WRITE_RPS0(CMD_PAUSE | e_wait);
- }
-
- /* turn off video-dma1 */
- WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4));
- WRITE_RPS0(MASK_22 | MASK_06); /* => mask */
- WRITE_RPS0(MASK_22); /* => values */
- if( 0 != planar ) {
- /* turn off video-dma2 */
- WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4));
- WRITE_RPS0(MASK_05 | MASK_21); /* => mask */
- WRITE_RPS0(MASK_21); /* => values */
-
- /* turn off video-dma3 */
- WRITE_RPS0(CMD_WR_REG_MASK | (MC1/4));
- WRITE_RPS0(MASK_04 | MASK_20); /* => mask */
- WRITE_RPS0(MASK_20); /* => values */
- }
-
- /* generate interrupt */
- WRITE_RPS0(CMD_INTERRUPT);
-
- /* stop */
- WRITE_RPS0(CMD_STOP);
-}
-
-void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next)
-{
- struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
- struct saa7146_vv *vv = dev->vv_data;
- u32 vdma1_prot_addr;
-
- DEB_CAP("buf:%p, next:%p\n", buf, next);
-
- vdma1_prot_addr = saa7146_read(dev, PROT_ADDR1);
- if( 0 == vdma1_prot_addr ) {
- /* clear out beginning of streaming bit (rps register 0)*/
- DEB_CAP("forcing sync to new frame\n");
- saa7146_write(dev, MC2, MASK_27 );
- }
-
- saa7146_set_window(dev, buf->fmt->width, buf->fmt->height, buf->fmt->field);
- saa7146_set_output_format(dev, sfmt->trans);
- saa7146_disable_clipping(dev);
-
- if ( vv->last_field == V4L2_FIELD_INTERLACED ) {
- } else if ( vv->last_field == V4L2_FIELD_TOP ) {
- vv->last_field = V4L2_FIELD_BOTTOM;
- } else if ( vv->last_field == V4L2_FIELD_BOTTOM ) {
- vv->last_field = V4L2_FIELD_TOP;
- }
-
- if( 0 != IS_PLANAR(sfmt->trans)) {
- calculate_video_dma_grab_planar(dev, buf);
- program_capture_engine(dev,1);
- } else {
- calculate_video_dma_grab_packed(dev, buf);
- program_capture_engine(dev,0);
- }
-
-/*
- printk("vdma%d.base_even: 0x%08x\n", 1,saa7146_read(dev,BASE_EVEN1));
- printk("vdma%d.base_odd: 0x%08x\n", 1,saa7146_read(dev,BASE_ODD1));
- printk("vdma%d.prot_addr: 0x%08x\n", 1,saa7146_read(dev,PROT_ADDR1));
- printk("vdma%d.base_page: 0x%08x\n", 1,saa7146_read(dev,BASE_PAGE1));
- printk("vdma%d.pitch: 0x%08x\n", 1,saa7146_read(dev,PITCH1));
- printk("vdma%d.num_line_byte: 0x%08x\n", 1,saa7146_read(dev,NUM_LINE_BYTE1));
- printk("vdma%d => vptr : 0x%08x\n", 1,saa7146_read(dev,PCI_VDP1));
-*/
-
- /* write the address of the rps-program */
- saa7146_write(dev, RPS_ADDR0, dev->d_rps0.dma_handle);
-
- /* turn on rps */
- saa7146_write(dev, MC1, (MASK_12 | MASK_28));
-}
diff --git a/drivers/media/common/saa7146/saa7146_i2c.c b/drivers/media/common/saa7146/saa7146_i2c.c
deleted file mode 100644
index df9ebe2a168c..000000000000
--- a/drivers/media/common/saa7146/saa7146_i2c.c
+++ /dev/null
@@ -1,421 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <media/drv-intf/saa7146_vv.h>
-
-static u32 saa7146_i2c_func(struct i2c_adapter *adapter)
-{
- /* DEB_I2C("'%s'\n", adapter->name); */
-
- return I2C_FUNC_I2C
- | I2C_FUNC_SMBUS_QUICK
- | I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE
- | I2C_FUNC_SMBUS_READ_BYTE_DATA | I2C_FUNC_SMBUS_WRITE_BYTE_DATA;
-}
-
-/* this function returns the status-register of our i2c-device */
-static inline u32 saa7146_i2c_status(struct saa7146_dev *dev)
-{
- u32 iicsta = saa7146_read(dev, I2C_STATUS);
- /* DEB_I2C("status: 0x%08x\n", iicsta); */
- return iicsta;
-}
-
-/* this function runs through the i2c-messages and prepares the data to be
- sent through the saa7146. have a look at the specifications p. 122 ff
- to understand this. it returns the number of u32s to send, or -1
- in case of an error. */
-static int saa7146_i2c_msg_prepare(const struct i2c_msg *m, int num, __le32 *op)
-{
- int h1, h2;
- int i, j, addr;
- int mem = 0, op_count = 0;
-
- /* first determine size of needed memory */
- for(i = 0; i < num; i++) {
- mem += m[i].len + 1;
- }
-
- /* worst case: we need one u32 for three bytes to be send
- plus one extra byte to address the device */
- mem = 1 + ((mem-1) / 3);
-
- /* we assume that op points to a memory of at least
- * SAA7146_I2C_MEM bytes size. if we exceed this limit...
- */
- if ((4 * mem) > SAA7146_I2C_MEM) {
- /* DEB_I2C("cannot prepare i2c-message\n"); */
- return -ENOMEM;
- }
-
- /* be careful: clear out the i2c-mem first */
- memset(op,0,sizeof(__le32)*mem);
-
- /* loop through all messages */
- for(i = 0; i < num; i++) {
-
- addr = i2c_8bit_addr_from_msg(&m[i]);
- h1 = op_count/3; h2 = op_count%3;
- op[h1] |= cpu_to_le32( (u8)addr << ((3-h2)*8));
- op[h1] |= cpu_to_le32(SAA7146_I2C_START << ((3-h2)*2));
- op_count++;
-
- /* loop through all bytes of message i */
- for(j = 0; j < m[i].len; j++) {
- /* insert the data bytes */
- h1 = op_count/3; h2 = op_count%3;
- op[h1] |= cpu_to_le32( (u32)((u8)m[i].buf[j]) << ((3-h2)*8));
- op[h1] |= cpu_to_le32( SAA7146_I2C_CONT << ((3-h2)*2));
- op_count++;
- }
-
- }
-
- /* have a look at the last byte inserted:
- if it was: ...CONT change it to ...STOP */
- h1 = (op_count-1)/3; h2 = (op_count-1)%3;
- if ( SAA7146_I2C_CONT == (0x3 & (le32_to_cpu(op[h1]) >> ((3-h2)*2))) ) {
- op[h1] &= ~cpu_to_le32(0x2 << ((3-h2)*2));
- op[h1] |= cpu_to_le32(SAA7146_I2C_STOP << ((3-h2)*2));
- }
-
- /* return the number of u32s to send */
- return mem;
-}
-
-/* this functions loops through all i2c-messages. normally, it should determine
- which bytes were read through the adapter and write them back to the corresponding
- i2c-message. but instead, we simply write back all bytes.
- fixme: this could be improved. */
-static int saa7146_i2c_msg_cleanup(const struct i2c_msg *m, int num, __le32 *op)
-{
- int i, j;
- int op_count = 0;
-
- /* loop through all messages */
- for(i = 0; i < num; i++) {
-
- op_count++;
-
- /* loop through all bytes of message i */
- for(j = 0; j < m[i].len; j++) {
- /* write back all bytes that could have been read */
- m[i].buf[j] = (le32_to_cpu(op[op_count/3]) >> ((3-(op_count%3))*8));
- op_count++;
- }
- }
-
- return 0;
-}
-
-/* this functions resets the i2c-device and returns 0 if everything was fine, otherwise -1 */
-static int saa7146_i2c_reset(struct saa7146_dev *dev)
-{
- /* get current status */
- u32 status = saa7146_i2c_status(dev);
-
- /* clear registers for sure */
- saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate);
- saa7146_write(dev, I2C_TRANSFER, 0);
-
- /* check if any operation is still in progress */
- if ( 0 != ( status & SAA7146_I2C_BUSY) ) {
-
- /* yes, kill ongoing operation */
- DEB_I2C("busy_state detected\n");
-
- /* set "ABORT-OPERATION"-bit (bit 7)*/
- saa7146_write(dev, I2C_STATUS, (dev->i2c_bitrate | MASK_07));
- saa7146_write(dev, MC2, (MASK_00 | MASK_16));
- msleep(SAA7146_I2C_DELAY);
-
- /* clear all error-bits pending; this is needed because p.123, note 1 */
- saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate);
- saa7146_write(dev, MC2, (MASK_00 | MASK_16));
- msleep(SAA7146_I2C_DELAY);
- }
-
- /* check if any error is (still) present. (this can be necessary because p.123, note 1) */
- status = saa7146_i2c_status(dev);
-
- if ( dev->i2c_bitrate != status ) {
-
- DEB_I2C("error_state detected. status:0x%08x\n", status);
-
- /* Repeat the abort operation. This seems to be necessary
- after serious protocol errors caused by e.g. the SAA7740 */
- saa7146_write(dev, I2C_STATUS, (dev->i2c_bitrate | MASK_07));
- saa7146_write(dev, MC2, (MASK_00 | MASK_16));
- msleep(SAA7146_I2C_DELAY);
-
- /* clear all error-bits pending */
- saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate);
- saa7146_write(dev, MC2, (MASK_00 | MASK_16));
- msleep(SAA7146_I2C_DELAY);
-
- /* the data sheet says it might be necessary to clear the status
- twice after an abort */
- saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate);
- saa7146_write(dev, MC2, (MASK_00 | MASK_16));
- msleep(SAA7146_I2C_DELAY);
- }
-
- /* if any error is still present, a fatal error has occurred ... */
- status = saa7146_i2c_status(dev);
- if ( dev->i2c_bitrate != status ) {
- DEB_I2C("fatal error. status:0x%08x\n", status);
- return -1;
- }
-
- return 0;
-}
-
-/* this functions writes out the data-byte 'dword' to the i2c-device.
- it returns 0 if ok, -1 if the transfer failed, -2 if the transfer
- failed badly (e.g. address error) */
-static int saa7146_i2c_writeout(struct saa7146_dev *dev, __le32 *dword, int short_delay)
-{
- u32 status = 0, mc2 = 0;
- int trial = 0;
- unsigned long timeout;
-
- /* write out i2c-command */
- DEB_I2C("before: 0x%08x (status: 0x%08x), %d\n",
- *dword, saa7146_read(dev, I2C_STATUS), dev->i2c_op);
-
- if( 0 != (SAA7146_USE_I2C_IRQ & dev->ext->flags)) {
-
- saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate);
- saa7146_write(dev, I2C_TRANSFER, le32_to_cpu(*dword));
-
- dev->i2c_op = 1;
- SAA7146_ISR_CLEAR(dev, MASK_16|MASK_17);
- SAA7146_IER_ENABLE(dev, MASK_16|MASK_17);
- saa7146_write(dev, MC2, (MASK_00 | MASK_16));
-
- timeout = HZ/100 + 1; /* 10ms */
- timeout = wait_event_interruptible_timeout(dev->i2c_wq, dev->i2c_op == 0, timeout);
- if (timeout == -ERESTARTSYS || dev->i2c_op) {
- SAA7146_IER_DISABLE(dev, MASK_16|MASK_17);
- SAA7146_ISR_CLEAR(dev, MASK_16|MASK_17);
- if (timeout == -ERESTARTSYS)
- /* a signal arrived */
- return -ERESTARTSYS;
-
- pr_warn("%s %s [irq]: timed out waiting for end of xfer\n",
- dev->name, __func__);
- return -EIO;
- }
- status = saa7146_read(dev, I2C_STATUS);
- } else {
- saa7146_write(dev, I2C_STATUS, dev->i2c_bitrate);
- saa7146_write(dev, I2C_TRANSFER, le32_to_cpu(*dword));
- saa7146_write(dev, MC2, (MASK_00 | MASK_16));
-
- /* do not poll for i2c-status before upload is complete */
- timeout = jiffies + HZ/100 + 1; /* 10ms */
- while(1) {
- mc2 = (saa7146_read(dev, MC2) & 0x1);
- if( 0 != mc2 ) {
- break;
- }
- if (time_after(jiffies,timeout)) {
- pr_warn("%s %s: timed out waiting for MC2\n",
- dev->name, __func__);
- return -EIO;
- }
- }
- /* wait until we get a transfer done or error */
- timeout = jiffies + HZ/100 + 1; /* 10ms */
- /* first read usually delivers bogus results... */
- saa7146_i2c_status(dev);
- while(1) {
- status = saa7146_i2c_status(dev);
- if ((status & 0x3) != 1)
- break;
- if (time_after(jiffies,timeout)) {
- /* this is normal when probing the bus
- * (no answer from nonexisistant device...)
- */
- pr_warn("%s %s [poll]: timed out waiting for end of xfer\n",
- dev->name, __func__);
- return -EIO;
- }
- if (++trial < 50 && short_delay)
- udelay(10);
- else
- msleep(1);
- }
- }
-
- /* give a detailed status report */
- if ( 0 != (status & (SAA7146_I2C_SPERR | SAA7146_I2C_APERR |
- SAA7146_I2C_DTERR | SAA7146_I2C_DRERR |
- SAA7146_I2C_AL | SAA7146_I2C_ERR |
- SAA7146_I2C_BUSY)) ) {
-
- if ( 0 == (status & SAA7146_I2C_ERR) ||
- 0 == (status & SAA7146_I2C_BUSY) ) {
- /* it may take some time until ERR goes high - ignore */
- DEB_I2C("unexpected i2c status %04x\n", status);
- }
- if( 0 != (status & SAA7146_I2C_SPERR) ) {
- DEB_I2C("error due to invalid start/stop condition\n");
- }
- if( 0 != (status & SAA7146_I2C_DTERR) ) {
- DEB_I2C("error in data transmission\n");
- }
- if( 0 != (status & SAA7146_I2C_DRERR) ) {
- DEB_I2C("error when receiving data\n");
- }
- if( 0 != (status & SAA7146_I2C_AL) ) {
- DEB_I2C("error because arbitration lost\n");
- }
-
- /* we handle address-errors here */
- if( 0 != (status & SAA7146_I2C_APERR) ) {
- DEB_I2C("error in address phase\n");
- return -EREMOTEIO;
- }
-
- return -EIO;
- }
-
- /* read back data, just in case we were reading ... */
- *dword = cpu_to_le32(saa7146_read(dev, I2C_TRANSFER));
-
- DEB_I2C("after: 0x%08x\n", *dword);
- return 0;
-}
-
-static int saa7146_i2c_transfer(struct saa7146_dev *dev, const struct i2c_msg *msgs, int num, int retries)
-{
- int i = 0, count = 0;
- __le32 *buffer = dev->d_i2c.cpu_addr;
- int err = 0;
- int short_delay = 0;
-
- if (mutex_lock_interruptible(&dev->i2c_lock))
- return -ERESTARTSYS;
-
- for(i=0;i<num;i++) {
- DEB_I2C("msg:%d/%d\n", i+1, num);
- }
-
- /* prepare the message(s), get number of u32s to transfer */
- count = saa7146_i2c_msg_prepare(msgs, num, buffer);
- if ( 0 > count ) {
- err = -EIO;
- goto out;
- }
-
- if ( count > 3 || 0 != (SAA7146_I2C_SHORT_DELAY & dev->ext->flags) )
- short_delay = 1;
-
- do {
- /* reset the i2c-device if necessary */
- err = saa7146_i2c_reset(dev);
- if ( 0 > err ) {
- DEB_I2C("could not reset i2c-device\n");
- goto out;
- }
-
- /* write out the u32s one after another */
- for(i = 0; i < count; i++) {
- err = saa7146_i2c_writeout(dev, &buffer[i], short_delay);
- if ( 0 != err) {
- /* this one is unsatisfying: some i2c slaves on some
- dvb cards don't acknowledge correctly, so the saa7146
- thinks that an address error occurred. in that case, the
- transaction should be retrying, even if an address error
- occurred. analog saa7146 based cards extensively rely on
- i2c address probing, however, and address errors indicate that a
- device is really *not* there. retrying in that case
- increases the time the device needs to probe greatly, so
- it should be avoided. So we bail out in irq mode after an
- address error and trust the saa7146 address error detection. */
- if (-EREMOTEIO == err && 0 != (SAA7146_USE_I2C_IRQ & dev->ext->flags))
- goto out;
- DEB_I2C("error while sending message(s). starting again\n");
- break;
- }
- }
- if( 0 == err ) {
- err = num;
- break;
- }
-
- /* delay a bit before retrying */
- msleep(10);
-
- } while (err != num && retries--);
-
- /* quit if any error occurred */
- if (err != num)
- goto out;
-
- /* if any things had to be read, get the results */
- if ( 0 != saa7146_i2c_msg_cleanup(msgs, num, buffer)) {
- DEB_I2C("could not cleanup i2c-message\n");
- err = -EIO;
- goto out;
- }
-
- /* return the number of delivered messages */
- DEB_I2C("transmission successful. (msg:%d)\n", err);
-out:
- /* another bug in revision 0: the i2c-registers get uploaded randomly by other
- uploads, so we better clear them out before continuing */
- if( 0 == dev->revision ) {
- __le32 zero = 0;
- saa7146_i2c_reset(dev);
- if( 0 != saa7146_i2c_writeout(dev, &zero, short_delay)) {
- pr_info("revision 0 error. this should never happen\n");
- }
- }
-
- mutex_unlock(&dev->i2c_lock);
- return err;
-}
-
-/* utility functions */
-static int saa7146_i2c_xfer(struct i2c_adapter* adapter, struct i2c_msg *msg, int num)
-{
- struct v4l2_device *v4l2_dev = i2c_get_adapdata(adapter);
- struct saa7146_dev *dev = to_saa7146_dev(v4l2_dev);
-
- /* use helper function to transfer data */
- return saa7146_i2c_transfer(dev, msg, num, adapter->retries);
-}
-
-
-/*****************************************************************************/
-/* i2c-adapter helper functions */
-
-/* exported algorithm data */
-static const struct i2c_algorithm saa7146_algo = {
- .master_xfer = saa7146_i2c_xfer,
- .functionality = saa7146_i2c_func,
-};
-
-int saa7146_i2c_adapter_prepare(struct saa7146_dev *dev, struct i2c_adapter *i2c_adapter, u32 bitrate)
-{
- DEB_EE("bitrate: 0x%08x\n", bitrate);
-
- /* enable i2c-port pins */
- saa7146_write(dev, MC1, (MASK_08 | MASK_24));
-
- dev->i2c_bitrate = bitrate;
- saa7146_i2c_reset(dev);
-
- if (i2c_adapter) {
- i2c_set_adapdata(i2c_adapter, &dev->v4l2_dev);
- i2c_adapter->dev.parent = &dev->pci->dev;
- i2c_adapter->algo = &saa7146_algo;
- i2c_adapter->algo_data = NULL;
- i2c_adapter->timeout = SAA7146_I2C_TIMEOUT;
- i2c_adapter->retries = SAA7146_I2C_RETRIES;
- }
-
- return 0;
-}
diff --git a/drivers/media/common/saa7146/saa7146_vbi.c b/drivers/media/common/saa7146/saa7146_vbi.c
deleted file mode 100644
index bd442b984423..000000000000
--- a/drivers/media/common/saa7146/saa7146_vbi.c
+++ /dev/null
@@ -1,498 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <media/drv-intf/saa7146_vv.h>
-
-static int vbi_pixel_to_capture = 720 * 2;
-
-static int vbi_workaround(struct saa7146_dev *dev)
-{
- struct saa7146_vv *vv = dev->vv_data;
-
- u32 *cpu;
- dma_addr_t dma_addr;
-
- int count = 0;
- int i;
-
- DECLARE_WAITQUEUE(wait, current);
-
- DEB_VBI("dev:%p\n", dev);
-
- /* once again, a bug in the saa7146: the brs acquisition
- is buggy and especially the BXO-counter does not work
- as specified. there is this workaround, but please
- don't let me explain it. ;-) */
-
- cpu = dma_alloc_coherent(&dev->pci->dev, 4096, &dma_addr, GFP_KERNEL);
- if (NULL == cpu)
- return -ENOMEM;
-
- /* setup some basic programming, just for the workaround */
- saa7146_write(dev, BASE_EVEN3, dma_addr);
- saa7146_write(dev, BASE_ODD3, dma_addr+vbi_pixel_to_capture);
- saa7146_write(dev, PROT_ADDR3, dma_addr+4096);
- saa7146_write(dev, PITCH3, vbi_pixel_to_capture);
- saa7146_write(dev, BASE_PAGE3, 0x0);
- saa7146_write(dev, NUM_LINE_BYTE3, (2<<16)|((vbi_pixel_to_capture)<<0));
- saa7146_write(dev, MC2, MASK_04|MASK_20);
-
- /* load brs-control register */
- WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4));
- /* BXO = 1h, BRS to outbound */
- WRITE_RPS1(0xc000008c);
- /* wait for vbi_a or vbi_b*/
- if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) {
- DEB_D("...using port b\n");
- WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_E_FID_B);
- WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | CMD_O_FID_B);
-/*
- WRITE_RPS1(CMD_PAUSE | MASK_09);
-*/
- } else {
- DEB_D("...using port a\n");
- WRITE_RPS1(CMD_PAUSE | MASK_10);
- }
- /* upload brs */
- WRITE_RPS1(CMD_UPLOAD | MASK_08);
- /* load brs-control register */
- WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4));
- /* BYO = 1, BXO = NQBIL (=1728 for PAL, for NTSC this is 858*2) - NumByte3 (=1440) = 288 */
- WRITE_RPS1(((1728-(vbi_pixel_to_capture)) << 7) | MASK_19);
- /* wait for brs_done */
- WRITE_RPS1(CMD_PAUSE | MASK_08);
- /* upload brs */
- WRITE_RPS1(CMD_UPLOAD | MASK_08);
- /* load video-dma3 NumLines3 and NumBytes3 */
- WRITE_RPS1(CMD_WR_REG | (1 << 8) | (NUM_LINE_BYTE3/4));
- /* dev->vbi_count*2 lines, 720 pixel (= 1440 Bytes) */
- WRITE_RPS1((2 << 16) | (vbi_pixel_to_capture));
- /* load brs-control register */
- WRITE_RPS1(CMD_WR_REG | (1 << 8) | (BRS_CTRL/4));
- /* Set BRS right: note: this is an experimental value for BXO (=> PAL!) */
- WRITE_RPS1((540 << 7) | (5 << 19)); // 5 == vbi_start
- /* wait for brs_done */
- WRITE_RPS1(CMD_PAUSE | MASK_08);
- /* upload brs and video-dma3*/
- WRITE_RPS1(CMD_UPLOAD | MASK_08 | MASK_04);
- /* load mc2 register: enable dma3 */
- WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC1/4));
- WRITE_RPS1(MASK_20 | MASK_04);
- /* generate interrupt */
- WRITE_RPS1(CMD_INTERRUPT);
- /* stop rps1 */
- WRITE_RPS1(CMD_STOP);
-
- /* we have to do the workaround twice to be sure that
- everything is ok */
- for(i = 0; i < 2; i++) {
-
- /* indicate to the irq handler that we do the workaround */
- saa7146_write(dev, MC2, MASK_31|MASK_15);
-
- saa7146_write(dev, NUM_LINE_BYTE3, (1<<16)|(2<<0));
- saa7146_write(dev, MC2, MASK_04|MASK_20);
-
- /* enable rps1 irqs */
- SAA7146_IER_ENABLE(dev,MASK_28);
-
- /* prepare to wait to be woken up by the irq-handler */
- add_wait_queue(&vv->vbi_wq, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
-
- /* start rps1 to enable workaround */
- saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
- saa7146_write(dev, MC1, (MASK_13 | MASK_29));
-
- schedule();
-
- DEB_VBI("brs bug workaround %d/1\n", i);
-
- remove_wait_queue(&vv->vbi_wq, &wait);
- __set_current_state(TASK_RUNNING);
-
- /* disable rps1 irqs */
- SAA7146_IER_DISABLE(dev,MASK_28);
-
- /* stop video-dma3 */
- saa7146_write(dev, MC1, MASK_20);
-
- if(signal_pending(current)) {
-
- DEB_VBI("aborted (rps:0x%08x)\n",
- saa7146_read(dev, RPS_ADDR1));
-
- /* stop rps1 for sure */
- saa7146_write(dev, MC1, MASK_29);
-
- dma_free_coherent(&dev->pci->dev, 4096, cpu, dma_addr);
- return -EINTR;
- }
- }
-
- dma_free_coherent(&dev->pci->dev, 4096, cpu, dma_addr);
- return 0;
-}
-
-static void saa7146_set_vbi_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struct saa7146_buf *next)
-{
- struct saa7146_vv *vv = dev->vv_data;
-
- struct saa7146_video_dma vdma3;
-
- int count = 0;
- unsigned long e_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_E_FID_A : CMD_E_FID_B;
- unsigned long o_wait = vv->current_hps_sync == SAA7146_HPS_SYNC_PORT_A ? CMD_O_FID_A : CMD_O_FID_B;
-
-/*
- vdma3.base_even = 0xc8000000+2560*70;
- vdma3.base_odd = 0xc8000000;
- vdma3.prot_addr = 0xc8000000+2560*164;
- vdma3.pitch = 2560;
- vdma3.base_page = 0;
- vdma3.num_line_byte = (64<<16)|((vbi_pixel_to_capture)<<0); // set above!
-*/
- vdma3.base_even = buf->pt[2].offset;
- vdma3.base_odd = buf->pt[2].offset + 16 * vbi_pixel_to_capture;
- vdma3.prot_addr = buf->pt[2].offset + 16 * 2 * vbi_pixel_to_capture;
- vdma3.pitch = vbi_pixel_to_capture;
- vdma3.base_page = buf->pt[2].dma | ME1;
- vdma3.num_line_byte = (16 << 16) | vbi_pixel_to_capture;
-
- saa7146_write_out_dma(dev, 3, &vdma3);
-
- /* write beginning of rps-program */
- count = 0;
-
- /* wait for o_fid_a/b / e_fid_a/b toggle only if bit 1 is not set */
-
- /* we don't wait here for the first field anymore. this is different from the video
- capture and might cause that the first buffer is only half filled (with only
- one field). but since this is some sort of streaming data, this is not that negative.
- but by doing this, we can use the whole engine from videobuf-dma-sg.c... */
-
-/*
- WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | e_wait);
- WRITE_RPS1(CMD_PAUSE | CMD_OAN | CMD_SIG1 | o_wait);
-*/
- /* set bit 1 */
- WRITE_RPS1(CMD_WR_REG | (1 << 8) | (MC2/4));
- WRITE_RPS1(MASK_28 | MASK_12);
-
- /* turn on video-dma3 */
- WRITE_RPS1(CMD_WR_REG_MASK | (MC1/4));
- WRITE_RPS1(MASK_04 | MASK_20); /* => mask */
- WRITE_RPS1(MASK_04 | MASK_20); /* => values */
-
- /* wait for o_fid_a/b / e_fid_a/b toggle */
- WRITE_RPS1(CMD_PAUSE | o_wait);
- WRITE_RPS1(CMD_PAUSE | e_wait);
-
- /* generate interrupt */
- WRITE_RPS1(CMD_INTERRUPT);
-
- /* stop */
- WRITE_RPS1(CMD_STOP);
-
- /* enable rps1 irqs */
- SAA7146_IER_ENABLE(dev, MASK_28);
-
- /* write the address of the rps-program */
- saa7146_write(dev, RPS_ADDR1, dev->d_rps1.dma_handle);
-
- /* turn on rps */
- saa7146_write(dev, MC1, (MASK_13 | MASK_29));
-}
-
-static int buffer_activate(struct saa7146_dev *dev,
- struct saa7146_buf *buf,
- struct saa7146_buf *next)
-{
- struct saa7146_vv *vv = dev->vv_data;
- buf->vb.state = VIDEOBUF_ACTIVE;
-
- DEB_VBI("dev:%p, buf:%p, next:%p\n", dev, buf, next);
- saa7146_set_vbi_capture(dev,buf,next);
-
- mod_timer(&vv->vbi_dmaq.timeout, jiffies+BUFFER_TIMEOUT);
- return 0;
-}
-
-static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,enum v4l2_field field)
-{
- struct file *file = q->priv_data;
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
-
- int err = 0;
- int lines, llength, size;
-
- lines = 16 * 2 ; /* 2 fields */
- llength = vbi_pixel_to_capture;
- size = lines * llength;
-
- DEB_VBI("vb:%p\n", vb);
-
- if (0 != buf->vb.baddr && buf->vb.bsize < size) {
- DEB_VBI("size mismatch\n");
- return -EINVAL;
- }
-
- if (buf->vb.size != size)
- saa7146_dma_free(dev,q,buf);
-
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
-
- buf->vb.width = llength;
- buf->vb.height = lines;
- buf->vb.size = size;
- buf->vb.field = field; // FIXME: check this
-
- saa7146_pgtable_free(dev->pci, &buf->pt[2]);
- saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
-
- err = videobuf_iolock(q,&buf->vb, NULL);
- if (err)
- goto oops;
- err = saa7146_pgtable_build_single(dev->pci, &buf->pt[2],
- dma->sglist, dma->sglen);
- if (0 != err)
- return err;
- }
- buf->vb.state = VIDEOBUF_PREPARED;
- buf->activate = buffer_activate;
-
- return 0;
-
- oops:
- DEB_VBI("error out\n");
- saa7146_dma_free(dev,q,buf);
-
- return err;
-}
-
-static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
-{
- int llength,lines;
-
- lines = 16 * 2 ; /* 2 fields */
- llength = vbi_pixel_to_capture;
-
- *size = lines * llength;
- *count = 2;
-
- DEB_VBI("count:%d, size:%d\n", *count, *size);
-
- return 0;
-}
-
-static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
- struct file *file = q->priv_data;
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
-
- DEB_VBI("vb:%p\n", vb);
- saa7146_buffer_queue(dev, &vv->vbi_dmaq, buf);
-}
-
-static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
- struct file *file = q->priv_data;
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
-
- DEB_VBI("vb:%p\n", vb);
- saa7146_dma_free(dev,q,buf);
-}
-
-static const struct videobuf_queue_ops vbi_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
-};
-
-/* ------------------------------------------------------------------ */
-
-static void vbi_stop(struct saa7146_fh *fh, struct file *file)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- unsigned long flags;
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
-
- spin_lock_irqsave(&dev->slock,flags);
-
- /* disable rps1 */
- saa7146_write(dev, MC1, MASK_29);
-
- /* disable rps1 irqs */
- SAA7146_IER_DISABLE(dev, MASK_28);
-
- /* shut down dma 3 transfers */
- saa7146_write(dev, MC1, MASK_20);
-
- if (vv->vbi_dmaq.curr)
- saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE);
-
- videobuf_queue_cancel(&fh->vbi_q);
-
- vv->vbi_streaming = NULL;
-
- del_timer(&vv->vbi_dmaq.timeout);
- del_timer(&vv->vbi_read_timeout);
-
- spin_unlock_irqrestore(&dev->slock, flags);
-}
-
-static void vbi_read_timeout(struct timer_list *t)
-{
- struct saa7146_vv *vv = from_timer(vv, t, vbi_read_timeout);
- struct file *file = vv->vbi_read_timeout_file;
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
-
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
-
- vbi_stop(fh, file);
-}
-
-static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv)
-{
- DEB_VBI("dev:%p\n", dev);
-
- INIT_LIST_HEAD(&vv->vbi_dmaq.queue);
-
- timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0);
- vv->vbi_dmaq.dev = dev;
-
- init_waitqueue_head(&vv->vbi_wq);
-}
-
-static int vbi_open(struct saa7146_dev *dev, struct file *file)
-{
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_vv *vv = fh->dev->vv_data;
-
- u32 arbtr_ctrl = saa7146_read(dev, PCI_BT_V1);
- int ret = 0;
-
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
-
- ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS);
- if (0 == ret) {
- DEB_S("cannot get vbi RESOURCE_DMA3_BRS resource\n");
- return -EBUSY;
- }
-
- /* adjust arbitrition control for video dma 3 */
- arbtr_ctrl &= ~0x1f0000;
- arbtr_ctrl |= 0x1d0000;
- saa7146_write(dev, PCI_BT_V1, arbtr_ctrl);
- saa7146_write(dev, MC2, (MASK_04|MASK_20));
-
- videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VBI_CAPTURE,
- V4L2_FIELD_SEQ_TB, // FIXME: does this really work?
- sizeof(struct saa7146_buf),
- file, &dev->v4l2_lock);
-
- vv->vbi_read_timeout.function = vbi_read_timeout;
- vv->vbi_read_timeout_file = file;
-
- /* initialize the brs */
- if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) {
- saa7146_write(dev, BRS_CTRL, MASK_30|MASK_29 | (7 << 19));
- } else {
- saa7146_write(dev, BRS_CTRL, 0x00000001);
-
- if (0 != (ret = vbi_workaround(dev))) {
- DEB_VBI("vbi workaround failed!\n");
- /* return ret;*/
- }
- }
-
- /* upload brs register */
- saa7146_write(dev, MC2, (MASK_08|MASK_24));
- return 0;
-}
-
-static void vbi_close(struct saa7146_dev *dev, struct file *file)
-{
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_vv *vv = dev->vv_data;
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
-
- if( fh == vv->vbi_streaming ) {
- vbi_stop(fh, file);
- }
- saa7146_res_free(fh, RESOURCE_DMA3_BRS);
-}
-
-static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status)
-{
- struct saa7146_vv *vv = dev->vv_data;
- spin_lock(&dev->slock);
-
- if (vv->vbi_dmaq.curr) {
- DEB_VBI("dev:%p, curr:%p\n", dev, vv->vbi_dmaq.curr);
- /* this must be += 2, one count for each field */
- vv->vbi_fieldcount+=2;
- vv->vbi_dmaq.curr->vb.field_count = vv->vbi_fieldcount;
- saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE);
- } else {
- DEB_VBI("dev:%p\n", dev);
- }
- saa7146_buffer_next(dev, &vv->vbi_dmaq, 1);
-
- spin_unlock(&dev->slock);
-}
-
-static ssize_t vbi_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- ssize_t ret = 0;
-
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
-
- if( NULL == vv->vbi_streaming ) {
- // fixme: check if dma3 is available
- // fixme: activate vbi engine here if necessary. (really?)
- vv->vbi_streaming = fh;
- }
-
- if( fh != vv->vbi_streaming ) {
- DEB_VBI("open %p is already using vbi capture\n",
- vv->vbi_streaming);
- return -EBUSY;
- }
-
- mod_timer(&vv->vbi_read_timeout, jiffies+BUFFER_TIMEOUT);
- ret = videobuf_read_stream(&fh->vbi_q, data, count, ppos, 1,
- file->f_flags & O_NONBLOCK);
-/*
- printk("BASE_ODD3: 0x%08x\n", saa7146_read(dev, BASE_ODD3));
- printk("BASE_EVEN3: 0x%08x\n", saa7146_read(dev, BASE_EVEN3));
- printk("PROT_ADDR3: 0x%08x\n", saa7146_read(dev, PROT_ADDR3));
- printk("PITCH3: 0x%08x\n", saa7146_read(dev, PITCH3));
- printk("BASE_PAGE3: 0x%08x\n", saa7146_read(dev, BASE_PAGE3));
- printk("NUM_LINE_BYTE3: 0x%08x\n", saa7146_read(dev, NUM_LINE_BYTE3));
- printk("BRS_CTRL: 0x%08x\n", saa7146_read(dev, BRS_CTRL));
-*/
- return ret;
-}
-
-const struct saa7146_use_ops saa7146_vbi_uops = {
- .init = vbi_init,
- .open = vbi_open,
- .release = vbi_close,
- .irq_done = vbi_irq_done,
- .read = vbi_read,
-};
diff --git a/drivers/media/common/saa7146/saa7146_video.c b/drivers/media/common/saa7146/saa7146_video.c
deleted file mode 100644
index 2296765079a4..000000000000
--- a/drivers/media/common/saa7146/saa7146_video.c
+++ /dev/null
@@ -1,1286 +0,0 @@
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <media/drv-intf/saa7146_vv.h>
-#include <media/v4l2-event.h>
-#include <media/v4l2-ctrls.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-
-static int max_memory = 32;
-
-module_param(max_memory, int, 0644);
-MODULE_PARM_DESC(max_memory, "maximum memory usage for capture buffers (default: 32Mb)");
-
-#define IS_CAPTURE_ACTIVE(fh) \
- (((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh))
-
-#define IS_OVERLAY_ACTIVE(fh) \
- (((vv->video_status & STATUS_OVERLAY) != 0) && (vv->video_fh == fh))
-
-/* format descriptions for capture and preview */
-static struct saa7146_format formats[] = {
- {
- .pixelformat = V4L2_PIX_FMT_RGB332,
- .trans = RGB08_COMPOSED,
- .depth = 8,
- .flags = 0,
- }, {
- .pixelformat = V4L2_PIX_FMT_RGB565,
- .trans = RGB16_COMPOSED,
- .depth = 16,
- .flags = 0,
- }, {
- .pixelformat = V4L2_PIX_FMT_BGR24,
- .trans = RGB24_COMPOSED,
- .depth = 24,
- .flags = 0,
- }, {
- .pixelformat = V4L2_PIX_FMT_BGR32,
- .trans = RGB32_COMPOSED,
- .depth = 32,
- .flags = 0,
- }, {
- .pixelformat = V4L2_PIX_FMT_RGB32,
- .trans = RGB32_COMPOSED,
- .depth = 32,
- .flags = 0,
- .swap = 0x2,
- }, {
- .pixelformat = V4L2_PIX_FMT_GREY,
- .trans = Y8,
- .depth = 8,
- .flags = 0,
- }, {
- .pixelformat = V4L2_PIX_FMT_YUV422P,
- .trans = YUV422_DECOMPOSED,
- .depth = 16,
- .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR,
- }, {
- .pixelformat = V4L2_PIX_FMT_YVU420,
- .trans = YUV420_DECOMPOSED,
- .depth = 12,
- .flags = FORMAT_BYTE_SWAP|FORMAT_IS_PLANAR,
- }, {
- .pixelformat = V4L2_PIX_FMT_YUV420,
- .trans = YUV420_DECOMPOSED,
- .depth = 12,
- .flags = FORMAT_IS_PLANAR,
- }, {
- .pixelformat = V4L2_PIX_FMT_UYVY,
- .trans = YUV422_COMPOSED,
- .depth = 16,
- .flags = 0,
- }
-};
-
-/* unfortunately, the saa7146 contains a bug which prevents it from doing on-the-fly byte swaps.
- due to this, it's impossible to provide additional *packed* formats, which are simply byte swapped
- (like V4L2_PIX_FMT_YUYV) ... 8-( */
-
-struct saa7146_format* saa7146_format_by_fourcc(struct saa7146_dev *dev, int fourcc)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(formats); i++) {
- if (formats[i].pixelformat == fourcc) {
- return formats+i;
- }
- }
-
- DEB_D("unknown pixelformat:'%4.4s'\n", (char *)&fourcc);
- return NULL;
-}
-
-static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f);
-
-int saa7146_start_preview(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct v4l2_format fmt;
- int ret = 0, err = 0;
-
- DEB_EE("dev:%p, fh:%p\n", dev, fh);
-
- /* check if we have overlay information */
- if (vv->ov.fh == NULL) {
- DEB_D("no overlay data available. try S_FMT first.\n");
- return -EAGAIN;
- }
-
- /* check if streaming capture is running */
- if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_D("streaming capture is active\n");
- return -EBUSY;
- }
-
- /* check if overlay is running */
- if (IS_OVERLAY_ACTIVE(fh) != 0) {
- if (vv->video_fh == fh) {
- DEB_D("overlay is already active\n");
- return 0;
- }
- DEB_D("overlay is already active in another open\n");
- return -EBUSY;
- }
-
- if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) {
- DEB_D("cannot get necessary overlay resources\n");
- return -EBUSY;
- }
-
- fmt.fmt.win = vv->ov.win;
- err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt);
- if (0 != err) {
- saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
- return -EBUSY;
- }
- vv->ov.win = fmt.fmt.win;
-
- DEB_D("%dx%d+%d+%d 0x%08x field=%s\n",
- vv->ov.win.w.width, vv->ov.win.w.height,
- vv->ov.win.w.left, vv->ov.win.w.top,
- vv->ov_fmt->pixelformat, v4l2_field_names[vv->ov.win.field]);
-
- if (0 != (ret = saa7146_enable_overlay(fh))) {
- DEB_D("enabling overlay failed: %d\n", ret);
- saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
- return ret;
- }
-
- vv->video_status = STATUS_OVERLAY;
- vv->video_fh = fh;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(saa7146_start_preview);
-
-int saa7146_stop_preview(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- DEB_EE("dev:%p, fh:%p\n", dev, fh);
-
- /* check if streaming capture is running */
- if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_D("streaming capture is active\n");
- return -EBUSY;
- }
-
- /* check if overlay is running at all */
- if ((vv->video_status & STATUS_OVERLAY) == 0) {
- DEB_D("no active overlay\n");
- return 0;
- }
-
- if (vv->video_fh != fh) {
- DEB_D("overlay is active, but in another open\n");
- return -EBUSY;
- }
-
- vv->video_status = 0;
- vv->video_fh = NULL;
-
- saa7146_disable_overlay(fh);
-
- saa7146_res_free(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(saa7146_stop_preview);
-
-/********************************************************************************/
-/* common pagetable functions */
-
-static int saa7146_pgtable_build(struct saa7146_dev *dev, struct saa7146_buf *buf)
-{
- struct pci_dev *pci = dev->pci;
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
- struct scatterlist *list = dma->sglist;
- int length = dma->sglen;
- struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
-
- DEB_EE("dev:%p, buf:%p, sg_len:%d\n", dev, buf, length);
-
- if( 0 != IS_PLANAR(sfmt->trans)) {
- struct saa7146_pgtable *pt1 = &buf->pt[0];
- struct saa7146_pgtable *pt2 = &buf->pt[1];
- struct saa7146_pgtable *pt3 = &buf->pt[2];
- __le32 *ptr1, *ptr2, *ptr3;
- __le32 fill;
-
- int size = buf->fmt->width*buf->fmt->height;
- int i,p,m1,m2,m3,o1,o2;
-
- switch( sfmt->depth ) {
- case 12: {
- /* create some offsets inside the page table */
- m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1;
- m2 = ((size+(size/4)+PAGE_SIZE)/PAGE_SIZE)-1;
- m3 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1;
- o1 = size%PAGE_SIZE;
- o2 = (size+(size/4))%PAGE_SIZE;
- DEB_CAP("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",
- size, m1, m2, m3, o1, o2);
- break;
- }
- case 16: {
- /* create some offsets inside the page table */
- m1 = ((size+PAGE_SIZE)/PAGE_SIZE)-1;
- m2 = ((size+(size/2)+PAGE_SIZE)/PAGE_SIZE)-1;
- m3 = ((2*size+PAGE_SIZE)/PAGE_SIZE)-1;
- o1 = size%PAGE_SIZE;
- o2 = (size+(size/2))%PAGE_SIZE;
- DEB_CAP("size:%d, m1:%d, m2:%d, m3:%d, o1:%d, o2:%d\n",
- size, m1, m2, m3, o1, o2);
- break;
- }
- default: {
- return -1;
- }
- }
-
- ptr1 = pt1->cpu;
- ptr2 = pt2->cpu;
- ptr3 = pt3->cpu;
-
- /* walk all pages, copy all page addresses to ptr1 */
- for (i = 0; i < length; i++, list++) {
- for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr1++)
- *ptr1 = cpu_to_le32(sg_dma_address(list) - list->offset);
- }
-/*
- ptr1 = pt1->cpu;
- for(j=0;j<40;j++) {
- printk("ptr1 %d: 0x%08x\n",j,ptr1[j]);
- }
-*/
-
- /* if we have a user buffer, the first page may not be
- aligned to a page boundary. */
- pt1->offset = dma->sglist->offset;
- pt2->offset = pt1->offset+o1;
- pt3->offset = pt1->offset+o2;
-
- /* create video-dma2 page table */
- ptr1 = pt1->cpu;
- for(i = m1; i <= m2 ; i++, ptr2++) {
- *ptr2 = ptr1[i];
- }
- fill = *(ptr2-1);
- for(;i<1024;i++,ptr2++) {
- *ptr2 = fill;
- }
- /* create video-dma3 page table */
- ptr1 = pt1->cpu;
- for(i = m2; i <= m3; i++,ptr3++) {
- *ptr3 = ptr1[i];
- }
- fill = *(ptr3-1);
- for(;i<1024;i++,ptr3++) {
- *ptr3 = fill;
- }
- /* finally: finish up video-dma1 page table */
- ptr1 = pt1->cpu+m1;
- fill = pt1->cpu[m1];
- for(i=m1;i<1024;i++,ptr1++) {
- *ptr1 = fill;
- }
-/*
- ptr1 = pt1->cpu;
- ptr2 = pt2->cpu;
- ptr3 = pt3->cpu;
- for(j=0;j<40;j++) {
- printk("ptr1 %d: 0x%08x\n",j,ptr1[j]);
- }
- for(j=0;j<40;j++) {
- printk("ptr2 %d: 0x%08x\n",j,ptr2[j]);
- }
- for(j=0;j<40;j++) {
- printk("ptr3 %d: 0x%08x\n",j,ptr3[j]);
- }
-*/
- } else {
- struct saa7146_pgtable *pt = &buf->pt[0];
- return saa7146_pgtable_build_single(pci, pt, list, length);
- }
-
- return 0;
-}
-
-
-/********************************************************************************/
-/* file operations */
-
-static int video_begin(struct saa7146_fh *fh)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_format *fmt = NULL;
- unsigned int resource;
- int ret = 0, err = 0;
-
- DEB_EE("dev:%p, fh:%p\n", dev, fh);
-
- if ((vv->video_status & STATUS_CAPTURE) != 0) {
- if (vv->video_fh == fh) {
- DEB_S("already capturing\n");
- return 0;
- }
- DEB_S("already capturing in another open\n");
- return -EBUSY;
- }
-
- if ((vv->video_status & STATUS_OVERLAY) != 0) {
- DEB_S("warning: suspending overlay video for streaming capture\n");
- vv->ov_suspend = vv->video_fh;
- err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
- if (0 != err) {
- DEB_D("suspending video failed. aborting\n");
- return err;
- }
- }
-
- fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat);
- /* we need to have a valid format set here */
- if (!fmt)
- return -EINVAL;
-
- if (0 != (fmt->flags & FORMAT_IS_PLANAR)) {
- resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS;
- } else {
- resource = RESOURCE_DMA1_HPS;
- }
-
- ret = saa7146_res_get(fh, resource);
- if (0 == ret) {
- DEB_S("cannot get capture resource %d\n", resource);
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
- return -EBUSY;
- }
-
- /* clear out beginning of streaming bit (rps register 0)*/
- saa7146_write(dev, MC2, MASK_27 );
-
- /* enable rps0 irqs */
- SAA7146_IER_ENABLE(dev, MASK_27);
-
- vv->video_fh = fh;
- vv->video_status = STATUS_CAPTURE;
-
- return 0;
-}
-
-static int video_end(struct saa7146_fh *fh, struct file *file)
-{
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_dmaqueue *q = &vv->video_dmaq;
- struct saa7146_format *fmt = NULL;
- unsigned long flags;
- unsigned int resource;
- u32 dmas = 0;
- DEB_EE("dev:%p, fh:%p\n", dev, fh);
-
- if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
- DEB_S("not capturing\n");
- return 0;
- }
-
- if (vv->video_fh != fh) {
- DEB_S("capturing, but in another open\n");
- return -EBUSY;
- }
-
- fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat);
- /* we need to have a valid format set here */
- if (!fmt)
- return -EINVAL;
-
- if (0 != (fmt->flags & FORMAT_IS_PLANAR)) {
- resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS;
- dmas = MASK_22 | MASK_21 | MASK_20;
- } else {
- resource = RESOURCE_DMA1_HPS;
- dmas = MASK_22;
- }
- spin_lock_irqsave(&dev->slock,flags);
-
- /* disable rps0 */
- saa7146_write(dev, MC1, MASK_28);
-
- /* disable rps0 irqs */
- SAA7146_IER_DISABLE(dev, MASK_27);
-
- /* shut down all used video dma transfers */
- saa7146_write(dev, MC1, dmas);
-
- if (q->curr)
- saa7146_buffer_finish(dev, q, VIDEOBUF_DONE);
-
- spin_unlock_irqrestore(&dev->slock, flags);
-
- vv->video_fh = NULL;
- vv->video_status = 0;
-
- saa7146_res_free(fh, resource);
-
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
-
- return 0;
-}
-
-static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
-
- strscpy((char *)cap->driver, "saa7146 v4l2", sizeof(cap->driver));
- strscpy((char *)cap->card, dev->ext->name, sizeof(cap->card));
- cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY |
- V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
- V4L2_CAP_DEVICE_CAPS;
- cap->capabilities |= dev->ext_vv_data->capabilities;
- return 0;
-}
-
-static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- *fb = vv->ov_fb;
- fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
- fb->flags = V4L2_FBUF_FLAG_PRIMARY;
- return 0;
-}
-
-static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *fb)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_format *fmt;
-
- DEB_EE("VIDIOC_S_FBUF\n");
-
- if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- /* check args */
- fmt = saa7146_format_by_fourcc(dev, fb->fmt.pixelformat);
- if (NULL == fmt)
- return -EINVAL;
-
- /* planar formats are not allowed for overlay video, clipping and video dma would clash */
- if (fmt->flags & FORMAT_IS_PLANAR)
- DEB_S("planar pixelformat '%4.4s' not allowed for overlay\n",
- (char *)&fmt->pixelformat);
-
- /* check if overlay is running */
- if (IS_OVERLAY_ACTIVE(fh) != 0) {
- if (vv->video_fh != fh) {
- DEB_D("refusing to change framebuffer information while overlay is active in another open\n");
- return -EBUSY;
- }
- }
-
- /* ok, accept it */
- vv->ov_fb = *fb;
- vv->ov_fmt = fmt;
-
- if (vv->ov_fb.fmt.bytesperline < vv->ov_fb.fmt.width) {
- vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width * fmt->depth / 8;
- DEB_D("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline);
- }
- return 0;
-}
-
-static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f)
-{
- if (f->index >= ARRAY_SIZE(formats))
- return -EINVAL;
- f->pixelformat = formats[f->index].pixelformat;
- return 0;
-}
-
-int saa7146_s_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct saa7146_dev *dev = container_of(ctrl->handler,
- struct saa7146_dev, ctrl_handler);
- struct saa7146_vv *vv = dev->vv_data;
- u32 val;
-
- switch (ctrl->id) {
- case V4L2_CID_BRIGHTNESS:
- val = saa7146_read(dev, BCS_CTRL);
- val &= 0x00ffffff;
- val |= (ctrl->val << 24);
- saa7146_write(dev, BCS_CTRL, val);
- saa7146_write(dev, MC2, MASK_22 | MASK_06);
- break;
-
- case V4L2_CID_CONTRAST:
- val = saa7146_read(dev, BCS_CTRL);
- val &= 0xff00ffff;
- val |= (ctrl->val << 16);
- saa7146_write(dev, BCS_CTRL, val);
- saa7146_write(dev, MC2, MASK_22 | MASK_06);
- break;
-
- case V4L2_CID_SATURATION:
- val = saa7146_read(dev, BCS_CTRL);
- val &= 0xffffff00;
- val |= (ctrl->val << 0);
- saa7146_write(dev, BCS_CTRL, val);
- saa7146_write(dev, MC2, MASK_22 | MASK_06);
- break;
-
- case V4L2_CID_HFLIP:
- /* fixme: we can support changing VFLIP and HFLIP here... */
- if ((vv->video_status & STATUS_CAPTURE))
- return -EBUSY;
- vv->hflip = ctrl->val;
- break;
-
- case V4L2_CID_VFLIP:
- if ((vv->video_status & STATUS_CAPTURE))
- return -EBUSY;
- vv->vflip = ctrl->val;
- break;
-
- default:
- return -EINVAL;
- }
-
- if ((vv->video_status & STATUS_OVERLAY) != 0) { /* CHECK: && (vv->video_fh == fh)) */
- struct saa7146_fh *fh = vv->video_fh;
-
- saa7146_stop_preview(fh);
- saa7146_start_preview(fh);
- }
- return 0;
-}
-
-static int vidioc_g_parm(struct file *file, void *fh,
- struct v4l2_streamparm *parm)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- parm->parm.capture.readbuffers = 1;
- v4l2_video_std_frame_period(vv->standard->id,
- &parm->parm.capture.timeperframe);
- return 0;
-}
-
-static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- f->fmt.pix = vv->video_fmt;
- return 0;
-}
-
-static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- f->fmt.win = vv->ov.win;
- return 0;
-}
-
-static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- f->fmt.vbi = vv->vbi_fmt;
- return 0;
-}
-
-static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_format *fmt;
- enum v4l2_field field;
- int maxw, maxh;
- int calc_bpl;
-
- DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh);
-
- fmt = saa7146_format_by_fourcc(dev, f->fmt.pix.pixelformat);
- if (NULL == fmt)
- return -EINVAL;
-
- field = f->fmt.pix.field;
- maxw = vv->standard->h_max_out;
- maxh = vv->standard->v_max_out;
-
- if (V4L2_FIELD_ANY == field) {
- field = (f->fmt.pix.height > maxh / 2)
- ? V4L2_FIELD_INTERLACED
- : V4L2_FIELD_BOTTOM;
- }
- switch (field) {
- case V4L2_FIELD_ALTERNATE:
- vv->last_field = V4L2_FIELD_TOP;
- maxh = maxh / 2;
- break;
- case V4L2_FIELD_TOP:
- case V4L2_FIELD_BOTTOM:
- vv->last_field = V4L2_FIELD_INTERLACED;
- maxh = maxh / 2;
- break;
- case V4L2_FIELD_INTERLACED:
- vv->last_field = V4L2_FIELD_INTERLACED;
- break;
- default:
- DEB_D("no known field mode '%d'\n", field);
- return -EINVAL;
- }
-
- f->fmt.pix.field = field;
- f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- if (f->fmt.pix.width > maxw)
- f->fmt.pix.width = maxw;
- if (f->fmt.pix.height > maxh)
- f->fmt.pix.height = maxh;
-
- calc_bpl = (f->fmt.pix.width * fmt->depth) / 8;
-
- if (f->fmt.pix.bytesperline < calc_bpl)
- f->fmt.pix.bytesperline = calc_bpl;
-
- if (f->fmt.pix.bytesperline > (2 * PAGE_SIZE * fmt->depth) / 8) /* arbitrary constraint */
- f->fmt.pix.bytesperline = calc_bpl;
-
- f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
- DEB_D("w:%d, h:%d, bytesperline:%d, sizeimage:%d\n",
- f->fmt.pix.width, f->fmt.pix.height,
- f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
-
- return 0;
-}
-
-
-static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct v4l2_window *win = &f->fmt.win;
- enum v4l2_field field;
- int maxw, maxh;
-
- DEB_EE("dev:%p\n", dev);
-
- if (NULL == vv->ov_fb.base) {
- DEB_D("no fb base set\n");
- return -EINVAL;
- }
- if (NULL == vv->ov_fmt) {
- DEB_D("no fb fmt set\n");
- return -EINVAL;
- }
- if (win->w.width < 48 || win->w.height < 32) {
- DEB_D("min width/height. (%d,%d)\n",
- win->w.width, win->w.height);
- return -EINVAL;
- }
- if (win->clipcount > 16) {
- DEB_D("clipcount too big\n");
- return -EINVAL;
- }
-
- field = win->field;
- maxw = vv->standard->h_max_out;
- maxh = vv->standard->v_max_out;
-
- if (V4L2_FIELD_ANY == field) {
- field = (win->w.height > maxh / 2)
- ? V4L2_FIELD_INTERLACED
- : V4L2_FIELD_TOP;
- }
- switch (field) {
- case V4L2_FIELD_TOP:
- case V4L2_FIELD_BOTTOM:
- case V4L2_FIELD_ALTERNATE:
- maxh = maxh / 2;
- break;
- case V4L2_FIELD_INTERLACED:
- break;
- default:
- DEB_D("no known field mode '%d'\n", field);
- return -EINVAL;
- }
-
- win->field = field;
- if (win->w.width > maxw)
- win->w.width = maxw;
- if (win->w.height > maxh)
- win->w.height = maxh;
-
- return 0;
-}
-
-static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f)
-{
- struct saa7146_fh *fh = __fh;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- int err;
-
- DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh);
- if (IS_CAPTURE_ACTIVE(fh) != 0) {
- DEB_EE("streaming capture is active\n");
- return -EBUSY;
- }
- err = vidioc_try_fmt_vid_cap(file, fh, f);
- if (0 != err)
- return err;
- vv->video_fmt = f->fmt.pix;
- DEB_EE("set to pixelformat '%4.4s'\n",
- (char *)&vv->video_fmt.pixelformat);
- return 0;
-}
-
-static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f)
-{
- struct saa7146_fh *fh = __fh;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- int err;
-
- DEB_EE("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh);
- err = vidioc_try_fmt_vid_overlay(file, fh, f);
- if (0 != err)
- return err;
- vv->ov.win = f->fmt.win;
- vv->ov.nclips = f->fmt.win.clipcount;
- if (vv->ov.nclips > 16)
- vv->ov.nclips = 16;
- memcpy(vv->ov.clips, f->fmt.win.clips,
- sizeof(struct v4l2_clip) * vv->ov.nclips);
-
- /* vv->ov.fh is used to indicate that we have valid overlay information, too */
- vv->ov.fh = fh;
-
- /* check if our current overlay is active */
- if (IS_OVERLAY_ACTIVE(fh) != 0) {
- saa7146_stop_preview(fh);
- saa7146_start_preview(fh);
- }
- return 0;
-}
-
-static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
-
- *norm = vv->standard->id;
- return 0;
-}
-
- /* the saa7146 supfhrts (used in conjunction with the saa7111a for example)
- PAL / NTSC / SECAM. if your hardware does not (or does more)
- -- override this function in your extension */
-/*
- case VIDIOC_ENUMSTD:
- {
- struct v4l2_standard *e = arg;
- if (e->index < 0 )
- return -EINVAL;
- if( e->index < dev->ext_vv_data->num_stds ) {
- DEB_EE("VIDIOC_ENUMSTD: index:%d\n", e->index);
- v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name);
- return 0;
- }
- return -EINVAL;
- }
- */
-
-static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id)
-{
- struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
- struct saa7146_vv *vv = dev->vv_data;
- int found = 0;
- int err, i;
-
- DEB_EE("VIDIOC_S_STD\n");
-
- if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) {
- DEB_D("cannot change video standard while streaming capture is active\n");
- return -EBUSY;
- }
-
- if ((vv->video_status & STATUS_OVERLAY) != 0) {
- vv->ov_suspend = vv->video_fh;
- err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */
- if (0 != err) {
- DEB_D("suspending video failed. aborting\n");
- return err;
- }
- }
-
- for (i = 0; i < dev->ext_vv_data->num_stds; i++)
- if (id & dev->ext_vv_data->stds[i].id)
- break;
- if (i != dev->ext_vv_data->num_stds) {
- vv->standard = &dev->ext_vv_data->stds[i];
- if (NULL != dev->ext_vv_data->std_callback)
- dev->ext_vv_data->std_callback(dev, vv->standard);
- found = 1;
- }
-
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
-
- if (!found) {
- DEB_EE("VIDIOC_S_STD: standard not found\n");
- return -EINVAL;
- }
-
- DEB_EE("VIDIOC_S_STD: set to standard to '%s'\n", vv->standard->name);
- return 0;
-}
-
-static int vidioc_overlay(struct file *file, void *fh, unsigned int on)
-{
- int err;
-
- DEB_D("VIDIOC_OVERLAY on:%d\n", on);
- if (on)
- err = saa7146_start_preview(fh);
- else
- err = saa7146_stop_preview(fh);
- return err;
-}
-
-static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b)
-{
- struct saa7146_fh *fh = __fh;
-
- if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_reqbufs(&fh->video_q, b);
- if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_reqbufs(&fh->vbi_q, b);
- return -EINVAL;
-}
-
-static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
-{
- struct saa7146_fh *fh = __fh;
-
- if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_querybuf(&fh->video_q, buf);
- if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_querybuf(&fh->vbi_q, buf);
- return -EINVAL;
-}
-
-static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
-{
- struct saa7146_fh *fh = __fh;
-
- if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_qbuf(&fh->video_q, buf);
- if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_qbuf(&fh->vbi_q, buf);
- return -EINVAL;
-}
-
-static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
-{
- struct saa7146_fh *fh = __fh;
-
- if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK);
- if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK);
- return -EINVAL;
-}
-
-static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
-{
- struct saa7146_fh *fh = __fh;
- int err;
-
- DEB_D("VIDIOC_STREAMON, type:%d\n", type);
-
- err = video_begin(fh);
- if (err)
- return err;
- if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_streamon(&fh->video_q);
- if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_streamon(&fh->vbi_q);
- return -EINVAL;
-}
-
-static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
-{
- struct saa7146_fh *fh = __fh;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- int err;
-
- DEB_D("VIDIOC_STREAMOFF, type:%d\n", type);
-
- /* ugly: we need to copy some checks from video_end(),
- because videobuf_streamoff() relies on the capture running.
- check and fix this */
- if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
- DEB_S("not capturing\n");
- return 0;
- }
-
- if (vv->video_fh != fh) {
- DEB_S("capturing, but in another open\n");
- return -EBUSY;
- }
-
- err = -EINVAL;
- if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- err = videobuf_streamoff(&fh->video_q);
- else if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
- err = videobuf_streamoff(&fh->vbi_q);
- if (0 != err) {
- DEB_D("warning: videobuf_streamoff() failed\n");
- video_end(fh, file);
- } else {
- err = video_end(fh, file);
- }
- return err;
-}
-
-const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = {
- .vidioc_querycap = vidioc_querycap,
- .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
- .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_cap,
- .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
- .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
- .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay,
- .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay,
- .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay,
-
- .vidioc_overlay = vidioc_overlay,
- .vidioc_g_fbuf = vidioc_g_fbuf,
- .vidioc_s_fbuf = vidioc_s_fbuf,
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
- .vidioc_g_std = vidioc_g_std,
- .vidioc_s_std = vidioc_s_std,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
- .vidioc_g_parm = vidioc_g_parm,
- .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
- .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
-};
-
-const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops = {
- .vidioc_querycap = vidioc_querycap,
- .vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
-
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
- .vidioc_g_std = vidioc_g_std,
- .vidioc_s_std = vidioc_s_std,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
- .vidioc_g_parm = vidioc_g_parm,
- .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
- .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
-};
-
-/*********************************************************************************/
-/* buffer handling functions */
-
-static int buffer_activate (struct saa7146_dev *dev,
- struct saa7146_buf *buf,
- struct saa7146_buf *next)
-{
- struct saa7146_vv *vv = dev->vv_data;
-
- buf->vb.state = VIDEOBUF_ACTIVE;
- saa7146_set_capture(dev,buf,next);
-
- mod_timer(&vv->video_dmaq.timeout, jiffies+BUFFER_TIMEOUT);
- return 0;
-}
-
-static void release_all_pagetables(struct saa7146_dev *dev, struct saa7146_buf *buf)
-{
- saa7146_pgtable_free(dev->pci, &buf->pt[0]);
- saa7146_pgtable_free(dev->pci, &buf->pt[1]);
- saa7146_pgtable_free(dev->pci, &buf->pt[2]);
-}
-
-static int buffer_prepare(struct videobuf_queue *q,
- struct videobuf_buffer *vb, enum v4l2_field field)
-{
- struct file *file = q->priv_data;
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
- int size,err = 0;
-
- DEB_CAP("vbuf:%p\n", vb);
-
- /* sanity checks */
- if (vv->video_fmt.width < 48 ||
- vv->video_fmt.height < 32 ||
- vv->video_fmt.width > vv->standard->h_max_out ||
- vv->video_fmt.height > vv->standard->v_max_out) {
- DEB_D("w (%d) / h (%d) out of bounds\n",
- vv->video_fmt.width, vv->video_fmt.height);
- return -EINVAL;
- }
-
- size = vv->video_fmt.sizeimage;
- if (0 != buf->vb.baddr && buf->vb.bsize < size) {
- DEB_D("size mismatch\n");
- return -EINVAL;
- }
-
- DEB_CAP("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n",
- vv->video_fmt.width, vv->video_fmt.height,
- size, v4l2_field_names[vv->video_fmt.field]);
- if (buf->vb.width != vv->video_fmt.width ||
- buf->vb.bytesperline != vv->video_fmt.bytesperline ||
- buf->vb.height != vv->video_fmt.height ||
- buf->vb.size != size ||
- buf->vb.field != field ||
- buf->vb.field != vv->video_fmt.field ||
- buf->fmt != &vv->video_fmt) {
- saa7146_dma_free(dev,q,buf);
- }
-
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- struct saa7146_format *sfmt;
-
- buf->vb.bytesperline = vv->video_fmt.bytesperline;
- buf->vb.width = vv->video_fmt.width;
- buf->vb.height = vv->video_fmt.height;
- buf->vb.size = size;
- buf->vb.field = field;
- buf->fmt = &vv->video_fmt;
- buf->vb.field = vv->video_fmt.field;
-
- sfmt = saa7146_format_by_fourcc(dev,buf->fmt->pixelformat);
-
- release_all_pagetables(dev, buf);
- if( 0 != IS_PLANAR(sfmt->trans)) {
- saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
- saa7146_pgtable_alloc(dev->pci, &buf->pt[1]);
- saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
- } else {
- saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
- }
-
- err = videobuf_iolock(q,&buf->vb, &vv->ov_fb);
- if (err)
- goto oops;
- err = saa7146_pgtable_build(dev,buf);
- if (err)
- goto oops;
- }
- buf->vb.state = VIDEOBUF_PREPARED;
- buf->activate = buffer_activate;
-
- return 0;
-
- oops:
- DEB_D("error out\n");
- saa7146_dma_free(dev,q,buf);
-
- return err;
-}
-
-static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
-{
- struct file *file = q->priv_data;
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_vv *vv = fh->dev->vv_data;
-
- if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS)
- *count = MAX_SAA7146_CAPTURE_BUFFERS;
-
- *size = vv->video_fmt.sizeimage;
-
- /* check if we exceed the "max_memory" parameter */
- if( (*count * *size) > (max_memory*1048576) ) {
- *count = (max_memory*1048576) / *size;
- }
-
- DEB_CAP("%d buffers, %d bytes each\n", *count, *size);
-
- return 0;
-}
-
-static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
- struct file *file = q->priv_data;
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
-
- DEB_CAP("vbuf:%p\n", vb);
- saa7146_buffer_queue(fh->dev, &vv->video_dmaq, buf);
-}
-
-static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
-{
- struct file *file = q->priv_data;
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
-
- DEB_CAP("vbuf:%p\n", vb);
-
- saa7146_dma_free(dev,q,buf);
-
- release_all_pagetables(dev, buf);
-}
-
-static const struct videobuf_queue_ops video_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
-};
-
-/********************************************************************************/
-/* file operations */
-
-static void video_init(struct saa7146_dev *dev, struct saa7146_vv *vv)
-{
- INIT_LIST_HEAD(&vv->video_dmaq.queue);
-
- timer_setup(&vv->video_dmaq.timeout, saa7146_buffer_timeout, 0);
- vv->video_dmaq.dev = dev;
-
- /* set some default values */
- vv->standard = &dev->ext_vv_data->stds[0];
-
- /* FIXME: what's this? */
- vv->current_hps_source = SAA7146_HPS_SOURCE_PORT_A;
- vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A;
-}
-
-
-static int video_open(struct saa7146_dev *dev, struct file *file)
-{
- struct saa7146_fh *fh = file->private_data;
-
- videobuf_queue_sg_init(&fh->video_q, &video_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VIDEO_CAPTURE,
- V4L2_FIELD_INTERLACED,
- sizeof(struct saa7146_buf),
- file, &dev->v4l2_lock);
-
- return 0;
-}
-
-
-static void video_close(struct saa7146_dev *dev, struct file *file)
-{
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_vv *vv = dev->vv_data;
- struct videobuf_queue *q = &fh->video_q;
-
- if (IS_CAPTURE_ACTIVE(fh) != 0)
- video_end(fh, file);
- else if (IS_OVERLAY_ACTIVE(fh) != 0)
- saa7146_stop_preview(fh);
-
- videobuf_stop(q);
- /* hmm, why is this function declared void? */
-}
-
-
-static void video_irq_done(struct saa7146_dev *dev, unsigned long st)
-{
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_dmaqueue *q = &vv->video_dmaq;
-
- spin_lock(&dev->slock);
- DEB_CAP("called\n");
-
- /* only finish the buffer if we have one... */
- if( NULL != q->curr ) {
- saa7146_buffer_finish(dev,q,VIDEOBUF_DONE);
- }
- saa7146_buffer_next(dev,q,0);
-
- spin_unlock(&dev->slock);
-}
-
-static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = fh->dev;
- struct saa7146_vv *vv = dev->vv_data;
- ssize_t ret = 0;
-
- DEB_EE("called\n");
-
- if ((vv->video_status & STATUS_CAPTURE) != 0) {
- /* fixme: should we allow read() captures while streaming capture? */
- if (vv->video_fh == fh) {
- DEB_S("already capturing\n");
- return -EBUSY;
- }
- DEB_S("already capturing in another open\n");
- return -EBUSY;
- }
-
- ret = video_begin(fh);
- if( 0 != ret) {
- goto out;
- }
-
- ret = videobuf_read_one(&fh->video_q , data, count, ppos,
- file->f_flags & O_NONBLOCK);
- if (ret != 0) {
- video_end(fh, file);
- } else {
- ret = video_end(fh, file);
- }
-out:
- /* restart overlay if it was active before */
- if (vv->ov_suspend != NULL) {
- saa7146_start_preview(vv->ov_suspend);
- vv->ov_suspend = NULL;
- }
-
- return ret;
-}
-
-const struct saa7146_use_ops saa7146_video_uops = {
- .init = video_init,
- .open = video_open,
- .release = video_close,
- .irq_done = video_irq_done,
- .read = video_read,
-};