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path: root/drivers/video/fbdev/bfin-t350mcqb-fb.c
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Diffstat (limited to 'drivers/video/fbdev/bfin-t350mcqb-fb.c')
-rw-r--r--drivers/video/fbdev/bfin-t350mcqb-fb.c669
1 files changed, 0 insertions, 669 deletions
diff --git a/drivers/video/fbdev/bfin-t350mcqb-fb.c b/drivers/video/fbdev/bfin-t350mcqb-fb.c
deleted file mode 100644
index e5ee4d9677f7..000000000000
--- a/drivers/video/fbdev/bfin-t350mcqb-fb.c
+++ /dev/null
@@ -1,669 +0,0 @@
-/*
- * File: drivers/video/bfin-t350mcqb-fb.c
- * Based on:
- * Author: Michael Hennerich <hennerich@blackfin.uclinux.org>
- *
- * Created:
- * Description: Blackfin LCD Framebuffer driver
- *
- *
- * Modified:
- * Copyright 2004-2007 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/gfp.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/backlight.h>
-#include <linux/lcd.h>
-#include <linux/dma-mapping.h>
-#include <linux/platform_device.h>
-
-#include <asm/blackfin.h>
-#include <asm/irq.h>
-#include <asm/dma-mapping.h>
-#include <asm/dma.h>
-#include <asm/portmux.h>
-#include <asm/gptimers.h>
-
-#define NO_BL_SUPPORT
-
-#define LCD_X_RES 320 /* Horizontal Resolution */
-#define LCD_Y_RES 240 /* Vertical Resolution */
-#define LCD_BPP 24 /* Bit Per Pixel */
-
-#define DMA_BUS_SIZE 16
-#define LCD_CLK (12*1000*1000) /* 12MHz */
-
-#define CLOCKS_PER_PIX 3
-
- /*
- * HS and VS timing parameters (all in number of PPI clk ticks)
- */
-
-#define U_LINE 1 /* Blanking Lines */
-
-#define H_ACTPIX (LCD_X_RES * CLOCKS_PER_PIX) /* active horizontal pixel */
-#define H_PERIOD (408 * CLOCKS_PER_PIX) /* HS period */
-#define H_PULSE 90 /* HS pulse width */
-#define H_START 204 /* first valid pixel */
-
-#define V_LINES (LCD_Y_RES + U_LINE) /* total vertical lines */
-#define V_PULSE (3 * H_PERIOD) /* VS pulse width (1-5 H_PERIODs) */
-#define V_PERIOD (H_PERIOD * V_LINES) /* VS period */
-
-#define ACTIVE_VIDEO_MEM_OFFSET (U_LINE * H_ACTPIX)
-
-#define BFIN_LCD_NBR_PALETTE_ENTRIES 256
-
-#define DRIVER_NAME "bfin-t350mcqb"
-static char driver_name[] = DRIVER_NAME;
-
-struct bfin_t350mcqbfb_info {
- struct fb_info *fb;
- struct device *dev;
- unsigned char *fb_buffer; /* RGB Buffer */
- dma_addr_t dma_handle;
- int lq043_open_cnt;
- int irq;
- spinlock_t lock; /* lock */
- u32 pseudo_pal[16];
-};
-
-static int nocursor;
-module_param(nocursor, int, 0644);
-MODULE_PARM_DESC(nocursor, "cursor enable/disable");
-
-#define PPI_TX_MODE 0x2
-#define PPI_XFER_TYPE_11 0xC
-#define PPI_PORT_CFG_01 0x10
-#define PPI_PACK_EN 0x80
-#define PPI_POLS_1 0x8000
-
-static void bfin_t350mcqb_config_ppi(struct bfin_t350mcqbfb_info *fbi)
-{
- bfin_write_PPI_DELAY(H_START);
- bfin_write_PPI_COUNT(H_ACTPIX-1);
- bfin_write_PPI_FRAME(V_LINES);
-
- bfin_write_PPI_CONTROL(PPI_TX_MODE | /* output mode , PORT_DIR */
- PPI_XFER_TYPE_11 | /* sync mode XFR_TYPE */
- PPI_PORT_CFG_01 | /* two frame sync PORT_CFG */
- PPI_PACK_EN | /* packing enabled PACK_EN */
- PPI_POLS_1); /* faling edge syncs POLS */
-}
-
-static inline void bfin_t350mcqb_disable_ppi(void)
-{
- bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() & ~PORT_EN);
-}
-
-static inline void bfin_t350mcqb_enable_ppi(void)
-{
- bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() | PORT_EN);
-}
-
-static void bfin_t350mcqb_start_timers(void)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- enable_gptimers(TIMER1bit);
- enable_gptimers(TIMER0bit);
- local_irq_restore(flags);
-}
-
-static void bfin_t350mcqb_stop_timers(void)
-{
- disable_gptimers(TIMER0bit | TIMER1bit);
-
- set_gptimer_status(0, TIMER_STATUS_TRUN0 | TIMER_STATUS_TRUN1 |
- TIMER_STATUS_TIMIL0 | TIMER_STATUS_TIMIL1 |
- TIMER_STATUS_TOVF0 | TIMER_STATUS_TOVF1);
-
-}
-
-static void bfin_t350mcqb_init_timers(void)
-{
-
- bfin_t350mcqb_stop_timers();
-
- set_gptimer_period(TIMER0_id, H_PERIOD);
- set_gptimer_pwidth(TIMER0_id, H_PULSE);
- set_gptimer_config(TIMER0_id, TIMER_MODE_PWM | TIMER_PERIOD_CNT |
- TIMER_TIN_SEL | TIMER_CLK_SEL|
- TIMER_EMU_RUN);
-
- set_gptimer_period(TIMER1_id, V_PERIOD);
- set_gptimer_pwidth(TIMER1_id, V_PULSE);
- set_gptimer_config(TIMER1_id, TIMER_MODE_PWM | TIMER_PERIOD_CNT |
- TIMER_TIN_SEL | TIMER_CLK_SEL |
- TIMER_EMU_RUN);
-
-}
-
-static void bfin_t350mcqb_config_dma(struct bfin_t350mcqbfb_info *fbi)
-{
-
- set_dma_config(CH_PPI,
- set_bfin_dma_config(DIR_READ, DMA_FLOW_AUTO,
- INTR_DISABLE, DIMENSION_2D,
- DATA_SIZE_16,
- DMA_NOSYNC_KEEP_DMA_BUF));
- set_dma_x_count(CH_PPI, (LCD_X_RES * LCD_BPP) / DMA_BUS_SIZE);
- set_dma_x_modify(CH_PPI, DMA_BUS_SIZE / 8);
- set_dma_y_count(CH_PPI, V_LINES);
-
- set_dma_y_modify(CH_PPI, DMA_BUS_SIZE / 8);
- set_dma_start_addr(CH_PPI, (unsigned long)fbi->fb_buffer);
-
-}
-
-static u16 ppi0_req_8[] = {P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
- P_PPI0_D0, P_PPI0_D1, P_PPI0_D2,
- P_PPI0_D3, P_PPI0_D4, P_PPI0_D5,
- P_PPI0_D6, P_PPI0_D7, 0};
-
-static int bfin_t350mcqb_request_ports(int action)
-{
- if (action) {
- if (peripheral_request_list(ppi0_req_8, DRIVER_NAME)) {
- printk(KERN_ERR "Requesting Peripherals failed\n");
- return -EFAULT;
- }
- } else
- peripheral_free_list(ppi0_req_8);
-
- return 0;
-}
-
-static int bfin_t350mcqb_fb_open(struct fb_info *info, int user)
-{
- struct bfin_t350mcqbfb_info *fbi = info->par;
-
- spin_lock(&fbi->lock);
- fbi->lq043_open_cnt++;
-
- if (fbi->lq043_open_cnt <= 1) {
-
- bfin_t350mcqb_disable_ppi();
- SSYNC();
-
- bfin_t350mcqb_config_dma(fbi);
- bfin_t350mcqb_config_ppi(fbi);
- bfin_t350mcqb_init_timers();
-
- /* start dma */
- enable_dma(CH_PPI);
- bfin_t350mcqb_enable_ppi();
- bfin_t350mcqb_start_timers();
- }
-
- spin_unlock(&fbi->lock);
-
- return 0;
-}
-
-static int bfin_t350mcqb_fb_release(struct fb_info *info, int user)
-{
- struct bfin_t350mcqbfb_info *fbi = info->par;
-
- spin_lock(&fbi->lock);
-
- fbi->lq043_open_cnt--;
-
- if (fbi->lq043_open_cnt <= 0) {
- bfin_t350mcqb_disable_ppi();
- SSYNC();
- disable_dma(CH_PPI);
- bfin_t350mcqb_stop_timers();
- }
-
- spin_unlock(&fbi->lock);
-
- return 0;
-}
-
-static int bfin_t350mcqb_fb_check_var(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
-
- switch (var->bits_per_pixel) {
- case 24:/* TRUECOLOUR, 16m */
- var->red.offset = 0;
- var->green.offset = 8;
- var->blue.offset = 16;
- var->red.length = var->green.length = var->blue.length = 8;
- var->transp.offset = 0;
- var->transp.length = 0;
- var->transp.msb_right = 0;
- var->red.msb_right = 0;
- var->green.msb_right = 0;
- var->blue.msb_right = 0;
- break;
- default:
- pr_debug("%s: depth not supported: %u BPP\n", __func__,
- var->bits_per_pixel);
- return -EINVAL;
- }
-
- if (info->var.xres != var->xres || info->var.yres != var->yres ||
- info->var.xres_virtual != var->xres_virtual ||
- info->var.yres_virtual != var->yres_virtual) {
- pr_debug("%s: Resolution not supported: X%u x Y%u \n",
- __func__, var->xres, var->yres);
- return -EINVAL;
- }
-
- /*
- * Memory limit
- */
-
- if ((info->fix.line_length * var->yres_virtual) > info->fix.smem_len) {
- pr_debug("%s: Memory Limit requested yres_virtual = %u\n",
- __func__, var->yres_virtual);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-int bfin_t350mcqb_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
-{
- if (nocursor)
- return 0;
- else
- return -EINVAL; /* just to force soft_cursor() call */
-}
-
-static int bfin_t350mcqb_fb_setcolreg(u_int regno, u_int red, u_int green,
- u_int blue, u_int transp,
- struct fb_info *info)
-{
- if (regno >= BFIN_LCD_NBR_PALETTE_ENTRIES)
- return -EINVAL;
-
- if (info->var.grayscale) {
- /* grayscale = 0.30*R + 0.59*G + 0.11*B */
- red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
- }
-
- if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
-
- u32 value;
- /* Place color in the pseudopalette */
- if (regno > 16)
- return -EINVAL;
-
- red >>= (16 - info->var.red.length);
- green >>= (16 - info->var.green.length);
- blue >>= (16 - info->var.blue.length);
-
- value = (red << info->var.red.offset) |
- (green << info->var.green.offset) |
- (blue << info->var.blue.offset);
- value &= 0xFFFFFF;
-
- ((u32 *) (info->pseudo_palette))[regno] = value;
-
- }
-
- return 0;
-}
-
-static struct fb_ops bfin_t350mcqb_fb_ops = {
- .owner = THIS_MODULE,
- .fb_open = bfin_t350mcqb_fb_open,
- .fb_release = bfin_t350mcqb_fb_release,
- .fb_check_var = bfin_t350mcqb_fb_check_var,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
- .fb_cursor = bfin_t350mcqb_fb_cursor,
- .fb_setcolreg = bfin_t350mcqb_fb_setcolreg,
-};
-
-#ifndef NO_BL_SUPPORT
-static int bl_get_brightness(struct backlight_device *bd)
-{
- return 0;
-}
-
-static const struct backlight_ops bfin_lq043fb_bl_ops = {
- .get_brightness = bl_get_brightness,
-};
-
-static struct backlight_device *bl_dev;
-
-static int bfin_lcd_get_power(struct lcd_device *dev)
-{
- return 0;
-}
-
-static int bfin_lcd_set_power(struct lcd_device *dev, int power)
-{
- return 0;
-}
-
-static int bfin_lcd_get_contrast(struct lcd_device *dev)
-{
- return 0;
-}
-
-static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast)
-{
-
- return 0;
-}
-
-static int bfin_lcd_check_fb(struct lcd_device *dev, struct fb_info *fi)
-{
- if (!fi || (fi == &bfin_t350mcqb_fb))
- return 1;
- return 0;
-}
-
-static struct lcd_ops bfin_lcd_ops = {
- .get_power = bfin_lcd_get_power,
- .set_power = bfin_lcd_set_power,
- .get_contrast = bfin_lcd_get_contrast,
- .set_contrast = bfin_lcd_set_contrast,
- .check_fb = bfin_lcd_check_fb,
-};
-
-static struct lcd_device *lcd_dev;
-#endif
-
-static irqreturn_t bfin_t350mcqb_irq_error(int irq, void *dev_id)
-{
- /*struct bfin_t350mcqbfb_info *info = (struct bfin_t350mcqbfb_info *)dev_id;*/
-
- u16 status = bfin_read_PPI_STATUS();
- bfin_write_PPI_STATUS(0xFFFF);
-
- if (status) {
- bfin_t350mcqb_disable_ppi();
- disable_dma(CH_PPI);
-
- /* start dma */
- enable_dma(CH_PPI);
- bfin_t350mcqb_enable_ppi();
- bfin_write_PPI_STATUS(0xFFFF);
- }
-
- return IRQ_HANDLED;
-}
-
-static int bfin_t350mcqb_probe(struct platform_device *pdev)
-{
-#ifndef NO_BL_SUPPORT
- struct backlight_properties props;
-#endif
- struct bfin_t350mcqbfb_info *info;
- struct fb_info *fbinfo;
- int ret;
-
- printk(KERN_INFO DRIVER_NAME ": %dx%d %d-bit RGB FrameBuffer initializing...\n",
- LCD_X_RES, LCD_Y_RES, LCD_BPP);
-
- if (request_dma(CH_PPI, "CH_PPI") < 0) {
- printk(KERN_ERR DRIVER_NAME
- ": couldn't request CH_PPI DMA\n");
- ret = -EFAULT;
- goto out1;
- }
-
- fbinfo =
- framebuffer_alloc(sizeof(struct bfin_t350mcqbfb_info), &pdev->dev);
- if (!fbinfo) {
- ret = -ENOMEM;
- goto out2;
- }
-
- info = fbinfo->par;
- info->fb = fbinfo;
- info->dev = &pdev->dev;
- spin_lock_init(&info->lock);
-
- platform_set_drvdata(pdev, fbinfo);
-
- strcpy(fbinfo->fix.id, driver_name);
-
- fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
- fbinfo->fix.type_aux = 0;
- fbinfo->fix.xpanstep = 0;
- fbinfo->fix.ypanstep = 0;
- fbinfo->fix.ywrapstep = 0;
- fbinfo->fix.accel = FB_ACCEL_NONE;
- fbinfo->fix.visual = FB_VISUAL_TRUECOLOR;
-
- fbinfo->var.nonstd = 0;
- fbinfo->var.activate = FB_ACTIVATE_NOW;
- fbinfo->var.height = 53;
- fbinfo->var.width = 70;
- fbinfo->var.accel_flags = 0;
- fbinfo->var.vmode = FB_VMODE_NONINTERLACED;
-
- fbinfo->var.xres = LCD_X_RES;
- fbinfo->var.xres_virtual = LCD_X_RES;
- fbinfo->var.yres = LCD_Y_RES;
- fbinfo->var.yres_virtual = LCD_Y_RES;
- fbinfo->var.bits_per_pixel = LCD_BPP;
-
- fbinfo->var.red.offset = 0;
- fbinfo->var.green.offset = 8;
- fbinfo->var.blue.offset = 16;
- fbinfo->var.transp.offset = 0;
- fbinfo->var.red.length = 8;
- fbinfo->var.green.length = 8;
- fbinfo->var.blue.length = 8;
- fbinfo->var.transp.length = 0;
- fbinfo->fix.smem_len = LCD_X_RES * LCD_Y_RES * LCD_BPP / 8;
-
- fbinfo->fix.line_length = fbinfo->var.xres_virtual *
- fbinfo->var.bits_per_pixel / 8;
-
-
- fbinfo->fbops = &bfin_t350mcqb_fb_ops;
- fbinfo->flags = FBINFO_FLAG_DEFAULT;
-
- info->fb_buffer = dma_alloc_coherent(NULL, fbinfo->fix.smem_len +
- ACTIVE_VIDEO_MEM_OFFSET,
- &info->dma_handle, GFP_KERNEL);
-
- if (NULL == info->fb_buffer) {
- printk(KERN_ERR DRIVER_NAME
- ": couldn't allocate dma buffer.\n");
- ret = -ENOMEM;
- goto out3;
- }
-
- fbinfo->screen_base = (void *)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET;
- fbinfo->fix.smem_start = (int)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET;
-
- fbinfo->fbops = &bfin_t350mcqb_fb_ops;
-
- fbinfo->pseudo_palette = &info->pseudo_pal;
-
- if (fb_alloc_cmap(&fbinfo->cmap, BFIN_LCD_NBR_PALETTE_ENTRIES, 0)
- < 0) {
- printk(KERN_ERR DRIVER_NAME
- "Fail to allocate colormap (%d entries)\n",
- BFIN_LCD_NBR_PALETTE_ENTRIES);
- ret = -EFAULT;
- goto out4;
- }
-
- if (bfin_t350mcqb_request_ports(1)) {
- printk(KERN_ERR DRIVER_NAME ": couldn't request gpio port.\n");
- ret = -EFAULT;
- goto out6;
- }
-
- info->irq = platform_get_irq(pdev, 0);
- if (info->irq < 0) {
- ret = -EINVAL;
- goto out7;
- }
-
- ret = request_irq(info->irq, bfin_t350mcqb_irq_error, 0,
- "PPI ERROR", info);
- if (ret < 0) {
- printk(KERN_ERR DRIVER_NAME
- ": unable to request PPI ERROR IRQ\n");
- goto out7;
- }
-
- if (register_framebuffer(fbinfo) < 0) {
- printk(KERN_ERR DRIVER_NAME
- ": unable to register framebuffer.\n");
- ret = -EINVAL;
- goto out8;
- }
-#ifndef NO_BL_SUPPORT
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_RAW;
- props.max_brightness = 255;
- bl_dev = backlight_device_register("bf52x-bl", NULL, NULL,
- &bfin_lq043fb_bl_ops, &props);
- if (IS_ERR(bl_dev)) {
- printk(KERN_ERR DRIVER_NAME
- ": unable to register backlight.\n");
- ret = -EINVAL;
- unregister_framebuffer(fbinfo);
- goto out8;
- }
-
- lcd_dev = lcd_device_register(DRIVER_NAME, NULL, &bfin_lcd_ops);
- lcd_dev->props.max_contrast = 255, printk(KERN_INFO "Done.\n");
-#endif
-
- return 0;
-
-out8:
- free_irq(info->irq, info);
-out7:
- bfin_t350mcqb_request_ports(0);
-out6:
- fb_dealloc_cmap(&fbinfo->cmap);
-out4:
- dma_free_coherent(NULL, fbinfo->fix.smem_len + ACTIVE_VIDEO_MEM_OFFSET,
- info->fb_buffer, info->dma_handle);
-out3:
- framebuffer_release(fbinfo);
-out2:
- free_dma(CH_PPI);
-out1:
-
- return ret;
-}
-
-static int bfin_t350mcqb_remove(struct platform_device *pdev)
-{
-
- struct fb_info *fbinfo = platform_get_drvdata(pdev);
- struct bfin_t350mcqbfb_info *info = fbinfo->par;
-
- unregister_framebuffer(fbinfo);
-
- free_dma(CH_PPI);
- free_irq(info->irq, info);
-
- if (info->fb_buffer != NULL)
- dma_free_coherent(NULL, fbinfo->fix.smem_len +
- ACTIVE_VIDEO_MEM_OFFSET, info->fb_buffer,
- info->dma_handle);
-
- fb_dealloc_cmap(&fbinfo->cmap);
-
-#ifndef NO_BL_SUPPORT
- lcd_device_unregister(lcd_dev);
- backlight_device_unregister(bl_dev);
-#endif
-
- bfin_t350mcqb_request_ports(0);
-
- framebuffer_release(fbinfo);
-
- printk(KERN_INFO DRIVER_NAME ": Unregister LCD driver.\n");
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int bfin_t350mcqb_suspend(struct platform_device *pdev, pm_message_t state)
-{
- struct fb_info *fbinfo = platform_get_drvdata(pdev);
- struct bfin_t350mcqbfb_info *fbi = fbinfo->par;
-
- if (fbi->lq043_open_cnt) {
- bfin_t350mcqb_disable_ppi();
- disable_dma(CH_PPI);
- bfin_t350mcqb_stop_timers();
- bfin_write_PPI_STATUS(-1);
- }
-
-
- return 0;
-}
-
-static int bfin_t350mcqb_resume(struct platform_device *pdev)
-{
- struct fb_info *fbinfo = platform_get_drvdata(pdev);
- struct bfin_t350mcqbfb_info *fbi = fbinfo->par;
-
- if (fbi->lq043_open_cnt) {
- bfin_t350mcqb_config_dma(fbi);
- bfin_t350mcqb_config_ppi(fbi);
- bfin_t350mcqb_init_timers();
-
- /* start dma */
- enable_dma(CH_PPI);
- bfin_t350mcqb_enable_ppi();
- bfin_t350mcqb_start_timers();
- }
-
- return 0;
-}
-#else
-#define bfin_t350mcqb_suspend NULL
-#define bfin_t350mcqb_resume NULL
-#endif
-
-static struct platform_driver bfin_t350mcqb_driver = {
- .probe = bfin_t350mcqb_probe,
- .remove = bfin_t350mcqb_remove,
- .suspend = bfin_t350mcqb_suspend,
- .resume = bfin_t350mcqb_resume,
- .driver = {
- .name = DRIVER_NAME,
- },
-};
-module_platform_driver(bfin_t350mcqb_driver);
-
-MODULE_DESCRIPTION("Blackfin TFT LCD Driver");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-11 06:41:35 +0000