diff options
| -rw-r--r-- | drivers/misc/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/misc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/misc/fsa9480.c | 547 | ||||
| -rw-r--r-- | include/linux/platform_data/fsa9480.h | 24 |
4 files changed, 0 insertions, 581 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 8110d6a00c86..6abfc8e92fcc 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -422,15 +422,6 @@ config PCH_PHUB To compile this driver as a module, choose M here: the module will be called pch_phub. -config USB_SWITCH_FSA9480 - tristate "FSA9480 USB Switch" - depends on I2C - help - The FSA9480 is a USB port accessory detector and switch. - The FSA9480 is fully controlled using I2C and enables USB data, - stereo and mono audio, video, microphone and UART data to use - a common connector port. - config LATTICE_ECP3_CONFIG tristate "Lattice ECP3 FPGA bitstream configuration via SPI" depends on SPI && SYSFS diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 0cb35466c578..abd8ae249746 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -42,7 +42,6 @@ obj-$(CONFIG_VMWARE_BALLOON) += vmw_balloon.o obj-$(CONFIG_PCH_PHUB) += pch_phub.o obj-y += ti-st/ obj-y += lis3lv02d/ -obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o obj-$(CONFIG_ALTERA_STAPL) +=altera-stapl/ obj-$(CONFIG_INTEL_MEI) += mei/ obj-$(CONFIG_VMWARE_VMCI) += vmw_vmci/ diff --git a/drivers/misc/fsa9480.c b/drivers/misc/fsa9480.c deleted file mode 100644 index 4e11807040d3..000000000000 --- a/drivers/misc/fsa9480.c +++ /dev/null @@ -1,547 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * fsa9480.c - FSA9480 micro USB switch device driver - * - * Copyright (C) 2010 Samsung Electronics - * Minkyu Kang <mk7.kang@samsung.com> - * Wonguk Jeong <wonguk.jeong@samsung.com> - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/err.h> -#include <linux/i2c.h> -#include <linux/platform_data/fsa9480.h> -#include <linux/irq.h> -#include <linux/interrupt.h> -#include <linux/workqueue.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/pm_runtime.h> - -/* FSA9480 I2C registers */ -#define FSA9480_REG_DEVID 0x01 -#define FSA9480_REG_CTRL 0x02 -#define FSA9480_REG_INT1 0x03 -#define FSA9480_REG_INT2 0x04 -#define FSA9480_REG_INT1_MASK 0x05 -#define FSA9480_REG_INT2_MASK 0x06 -#define FSA9480_REG_ADC 0x07 -#define FSA9480_REG_TIMING1 0x08 -#define FSA9480_REG_TIMING2 0x09 -#define FSA9480_REG_DEV_T1 0x0a -#define FSA9480_REG_DEV_T2 0x0b -#define FSA9480_REG_BTN1 0x0c -#define FSA9480_REG_BTN2 0x0d -#define FSA9480_REG_CK 0x0e -#define FSA9480_REG_CK_INT1 0x0f -#define FSA9480_REG_CK_INT2 0x10 -#define FSA9480_REG_CK_INTMASK1 0x11 -#define FSA9480_REG_CK_INTMASK2 0x12 -#define FSA9480_REG_MANSW1 0x13 -#define FSA9480_REG_MANSW2 0x14 - -/* Control */ -#define CON_SWITCH_OPEN (1 << 4) -#define CON_RAW_DATA (1 << 3) -#define CON_MANUAL_SW (1 << 2) -#define CON_WAIT (1 << 1) -#define CON_INT_MASK (1 << 0) -#define CON_MASK (CON_SWITCH_OPEN | CON_RAW_DATA | \ - CON_MANUAL_SW | CON_WAIT) - -/* Device Type 1 */ -#define DEV_USB_OTG (1 << 7) -#define DEV_DEDICATED_CHG (1 << 6) -#define DEV_USB_CHG (1 << 5) -#define DEV_CAR_KIT (1 << 4) -#define DEV_UART (1 << 3) -#define DEV_USB (1 << 2) -#define DEV_AUDIO_2 (1 << 1) -#define DEV_AUDIO_1 (1 << 0) - -#define DEV_T1_USB_MASK (DEV_USB_OTG | DEV_USB) -#define DEV_T1_UART_MASK (DEV_UART) -#define DEV_T1_CHARGER_MASK (DEV_DEDICATED_CHG | DEV_USB_CHG) - -/* Device Type 2 */ -#define DEV_AV (1 << 6) -#define DEV_TTY (1 << 5) -#define DEV_PPD (1 << 4) -#define DEV_JIG_UART_OFF (1 << 3) -#define DEV_JIG_UART_ON (1 << 2) -#define DEV_JIG_USB_OFF (1 << 1) -#define DEV_JIG_USB_ON (1 << 0) - -#define DEV_T2_USB_MASK (DEV_JIG_USB_OFF | DEV_JIG_USB_ON) -#define DEV_T2_UART_MASK (DEV_JIG_UART_OFF | DEV_JIG_UART_ON) -#define DEV_T2_JIG_MASK (DEV_JIG_USB_OFF | DEV_JIG_USB_ON | \ - DEV_JIG_UART_OFF | DEV_JIG_UART_ON) - -/* - * Manual Switch - * D- [7:5] / D+ [4:2] - * 000: Open all / 001: USB / 010: AUDIO / 011: UART / 100: V_AUDIO - */ -#define SW_VAUDIO ((4 << 5) | (4 << 2)) -#define SW_UART ((3 << 5) | (3 << 2)) -#define SW_AUDIO ((2 << 5) | (2 << 2)) -#define SW_DHOST ((1 << 5) | (1 << 2)) -#define SW_AUTO ((0 << 5) | (0 << 2)) - -/* Interrupt 1 */ -#define INT_DETACH (1 << 1) -#define INT_ATTACH (1 << 0) - -struct fsa9480_usbsw { - struct i2c_client *client; - struct fsa9480_platform_data *pdata; - int dev1; - int dev2; - int mansw; -}; - -static struct fsa9480_usbsw *chip; - -static int fsa9480_write_reg(struct i2c_client *client, - int reg, int value) -{ - int ret; - - ret = i2c_smbus_write_byte_data(client, reg, value); - - if (ret < 0) - dev_err(&client->dev, "%s: err %d\n", __func__, ret); - - return ret; -} - -static int fsa9480_read_reg(struct i2c_client *client, int reg) -{ - int ret; - - ret = i2c_smbus_read_byte_data(client, reg); - - if (ret < 0) - dev_err(&client->dev, "%s: err %d\n", __func__, ret); - - return ret; -} - -static int fsa9480_read_irq(struct i2c_client *client, int *value) -{ - int ret; - - ret = i2c_smbus_read_i2c_block_data(client, - FSA9480_REG_INT1, 2, (u8 *)value); - *value &= 0xffff; - - if (ret < 0) - dev_err(&client->dev, "%s: err %d\n", __func__, ret); - - return ret; -} - -static void fsa9480_set_switch(const char *buf) -{ - struct fsa9480_usbsw *usbsw = chip; - struct i2c_client *client = usbsw->client; - unsigned int value; - unsigned int path = 0; - - value = fsa9480_read_reg(client, FSA9480_REG_CTRL); - - if (!strncmp(buf, "VAUDIO", 6)) { - path = SW_VAUDIO; - value &= ~CON_MANUAL_SW; - } else if (!strncmp(buf, "UART", 4)) { - path = SW_UART; - value &= ~CON_MANUAL_SW; - } else if (!strncmp(buf, "AUDIO", 5)) { - path = SW_AUDIO; - value &= ~CON_MANUAL_SW; - } else if (!strncmp(buf, "DHOST", 5)) { - path = SW_DHOST; - value &= ~CON_MANUAL_SW; - } else if (!strncmp(buf, "AUTO", 4)) { - path = SW_AUTO; - value |= CON_MANUAL_SW; - } else { - printk(KERN_ERR "Wrong command\n"); - return; - } - - usbsw->mansw = path; - fsa9480_write_reg(client, FSA9480_REG_MANSW1, path); - fsa9480_write_reg(client, FSA9480_REG_CTRL, value); -} - -static ssize_t fsa9480_get_switch(char *buf) -{ - struct fsa9480_usbsw *usbsw = chip; - struct i2c_client *client = usbsw->client; - unsigned int value; - - value = fsa9480_read_reg(client, FSA9480_REG_MANSW1); - - if (value == SW_VAUDIO) - return sprintf(buf, "VAUDIO\n"); - else if (value == SW_UART) - return sprintf(buf, "UART\n"); - else if (value == SW_AUDIO) - return sprintf(buf, "AUDIO\n"); - else if (value == SW_DHOST) - return sprintf(buf, "DHOST\n"); - else if (value == SW_AUTO) - return sprintf(buf, "AUTO\n"); - else - return sprintf(buf, "%x", value); -} - -static ssize_t fsa9480_show_device(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct fsa9480_usbsw *usbsw = dev_get_drvdata(dev); - struct i2c_client *client = usbsw->client; - int dev1, dev2; - - dev1 = fsa9480_read_reg(client, FSA9480_REG_DEV_T1); - dev2 = fsa9480_read_reg(client, FSA9480_REG_DEV_T2); - - if (!dev1 && !dev2) - return sprintf(buf, "NONE\n"); - - /* USB */ - if (dev1 & DEV_T1_USB_MASK || dev2 & DEV_T2_USB_MASK) - return sprintf(buf, "USB\n"); - - /* UART */ - if (dev1 & DEV_T1_UART_MASK || dev2 & DEV_T2_UART_MASK) - return sprintf(buf, "UART\n"); - - /* CHARGER */ - if (dev1 & DEV_T1_CHARGER_MASK) - return sprintf(buf, "CHARGER\n"); - - /* JIG */ - if (dev2 & DEV_T2_JIG_MASK) - return sprintf(buf, "JIG\n"); - - return sprintf(buf, "UNKNOWN\n"); -} - -static ssize_t fsa9480_show_manualsw(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return fsa9480_get_switch(buf); - -} - -static ssize_t fsa9480_set_manualsw(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - fsa9480_set_switch(buf); - - return count; -} - -static DEVICE_ATTR(device, S_IRUGO, fsa9480_show_device, NULL); -static DEVICE_ATTR(switch, S_IRUGO | S_IWUSR, - fsa9480_show_manualsw, fsa9480_set_manualsw); - -static struct attribute *fsa9480_attributes[] = { - &dev_attr_device.attr, - &dev_attr_switch.attr, - NULL -}; - -static const struct attribute_group fsa9480_group = { - .attrs = fsa9480_attributes, -}; - -static void fsa9480_detect_dev(struct fsa9480_usbsw *usbsw, int intr) -{ - int val1, val2, ctrl; - struct fsa9480_platform_data *pdata = usbsw->pdata; - struct i2c_client *client = usbsw->client; - - val1 = fsa9480_read_reg(client, FSA9480_REG_DEV_T1); - val2 = fsa9480_read_reg(client, FSA9480_REG_DEV_T2); - ctrl = fsa9480_read_reg(client, FSA9480_REG_CTRL); - - dev_info(&client->dev, "intr: 0x%x, dev1: 0x%x, dev2: 0x%x\n", - intr, val1, val2); - - if (!intr) - goto out; - - if (intr & INT_ATTACH) { /* Attached */ - /* USB */ - if (val1 & DEV_T1_USB_MASK || val2 & DEV_T2_USB_MASK) { - if (pdata->usb_cb) - pdata->usb_cb(FSA9480_ATTACHED); - - if (usbsw->mansw) { - fsa9480_write_reg(client, - FSA9480_REG_MANSW1, usbsw->mansw); - } - } - - /* UART */ - if (val1 & DEV_T1_UART_MASK || val2 & DEV_T2_UART_MASK) { - if (pdata->uart_cb) - pdata->uart_cb(FSA9480_ATTACHED); - - if (!(ctrl & CON_MANUAL_SW)) { - fsa9480_write_reg(client, - FSA9480_REG_MANSW1, SW_UART); - } - } - - /* CHARGER */ - if (val1 & DEV_T1_CHARGER_MASK) { - if (pdata->charger_cb) - pdata->charger_cb(FSA9480_ATTACHED); - } - - /* JIG */ - if (val2 & DEV_T2_JIG_MASK) { - if (pdata->jig_cb) - pdata->jig_cb(FSA9480_ATTACHED); - } - } else if (intr & INT_DETACH) { /* Detached */ - /* USB */ - if (usbsw->dev1 & DEV_T1_USB_MASK || - usbsw->dev2 & DEV_T2_USB_MASK) { - if (pdata->usb_cb) - pdata->usb_cb(FSA9480_DETACHED); - } - - /* UART */ - if (usbsw->dev1 & DEV_T1_UART_MASK || - usbsw->dev2 & DEV_T2_UART_MASK) { - if (pdata->uart_cb) - pdata->uart_cb(FSA9480_DETACHED); - } - - /* CHARGER */ - if (usbsw->dev1 & DEV_T1_CHARGER_MASK) { - if (pdata->charger_cb) - pdata->charger_cb(FSA9480_DETACHED); - } - - /* JIG */ - if (usbsw->dev2 & DEV_T2_JIG_MASK) { - if (pdata->jig_cb) - pdata->jig_cb(FSA9480_DETACHED); - } - } - - usbsw->dev1 = val1; - usbsw->dev2 = val2; - -out: - ctrl &= ~CON_INT_MASK; - fsa9480_write_reg(client, FSA9480_REG_CTRL, ctrl); -} - -static irqreturn_t fsa9480_irq_handler(int irq, void *data) -{ - struct fsa9480_usbsw *usbsw = data; - struct i2c_client *client = usbsw->client; - int intr; - - /* clear interrupt */ - fsa9480_read_irq(client, &intr); - - /* device detection */ - fsa9480_detect_dev(usbsw, intr); - - return IRQ_HANDLED; -} - -static int fsa9480_irq_init(struct fsa9480_usbsw *usbsw) -{ - struct fsa9480_platform_data *pdata = usbsw->pdata; - struct i2c_client *client = usbsw->client; - int ret; - int intr; - unsigned int ctrl = CON_MASK; - - /* clear interrupt */ - fsa9480_read_irq(client, &intr); - - /* unmask interrupt (attach/detach only) */ - fsa9480_write_reg(client, FSA9480_REG_INT1_MASK, 0xfc); - fsa9480_write_reg(client, FSA9480_REG_INT2_MASK, 0x1f); - - usbsw->mansw = fsa9480_read_reg(client, FSA9480_REG_MANSW1); - - if (usbsw->mansw) - ctrl &= ~CON_MANUAL_SW; /* Manual Switching Mode */ - - fsa9480_write_reg(client, FSA9480_REG_CTRL, ctrl); - - if (pdata && pdata->cfg_gpio) - pdata->cfg_gpio(); - - if (client->irq) { - ret = request_threaded_irq(client->irq, NULL, - fsa9480_irq_handler, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - "fsa9480 micro USB", usbsw); - if (ret) { - dev_err(&client->dev, "failed to request IRQ\n"); - return ret; - } - - if (pdata) - device_init_wakeup(&client->dev, pdata->wakeup); - } - - return 0; -} - -static int fsa9480_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct i2c_adapter *adapter = client->adapter; - struct fsa9480_usbsw *usbsw; - int ret = 0; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) - return -EIO; - - usbsw = kzalloc(sizeof(struct fsa9480_usbsw), GFP_KERNEL); - if (!usbsw) { - dev_err(&client->dev, "failed to allocate driver data\n"); - return -ENOMEM; - } - - usbsw->client = client; - usbsw->pdata = client->dev.platform_data; - - chip = usbsw; - - i2c_set_clientdata(client, usbsw); - - ret = fsa9480_irq_init(usbsw); - if (ret) - goto fail1; - - ret = sysfs_create_group(&client->dev.kobj, &fsa9480_group); - if (ret) { - dev_err(&client->dev, - "failed to create fsa9480 attribute group\n"); - goto fail2; - } - - /* ADC Detect Time: 500ms */ - fsa9480_write_reg(client, FSA9480_REG_TIMING1, 0x6); - - if (chip->pdata->reset_cb) - chip->pdata->reset_cb(); - - /* device detection */ - fsa9480_detect_dev(usbsw, INT_ATTACH); - - pm_runtime_set_active(&client->dev); - - return 0; - -fail2: - if (client->irq) - free_irq(client->irq, usbsw); -fail1: - kfree(usbsw); - return ret; -} - -static int fsa9480_remove(struct i2c_client *client) -{ - struct fsa9480_usbsw *usbsw = i2c_get_clientdata(client); - - if (client->irq) - free_irq(client->irq, usbsw); - - sysfs_remove_group(&client->dev.kobj, &fsa9480_group); - device_init_wakeup(&client->dev, 0); - kfree(usbsw); - return 0; -} - -#ifdef CONFIG_PM_SLEEP - -static int fsa9480_suspend(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct fsa9480_usbsw *usbsw = i2c_get_clientdata(client); - struct fsa9480_platform_data *pdata = usbsw->pdata; - - if (device_may_wakeup(&client->dev) && client->irq) - enable_irq_wake(client->irq); - - if (pdata->usb_power) - pdata->usb_power(0); - - return 0; -} - -static int fsa9480_resume(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct fsa9480_usbsw *usbsw = i2c_get_clientdata(client); - int dev1, dev2; - - if (device_may_wakeup(&client->dev) && client->irq) - disable_irq_wake(client->irq); - - /* - * Clear Pending interrupt. Note that detect_dev does what - * the interrupt handler does. So, we don't miss pending and - * we reenable interrupt if there is one. - */ - fsa9480_read_reg(client, FSA9480_REG_INT1); - fsa9480_read_reg(client, FSA9480_REG_INT2); - - dev1 = fsa9480_read_reg(client, FSA9480_REG_DEV_T1); - dev2 = fsa9480_read_reg(client, FSA9480_REG_DEV_T2); - - /* device detection */ - fsa9480_detect_dev(usbsw, (dev1 || dev2) ? INT_ATTACH : INT_DETACH); - - return 0; -} - -static SIMPLE_DEV_PM_OPS(fsa9480_pm_ops, fsa9480_suspend, fsa9480_resume); -#define FSA9480_PM_OPS (&fsa9480_pm_ops) - -#else - -#define FSA9480_PM_OPS NULL - -#endif /* CONFIG_PM_SLEEP */ - -static const struct i2c_device_id fsa9480_id[] = { - {"fsa9480", 0}, - {} -}; -MODULE_DEVICE_TABLE(i2c, fsa9480_id); - -static struct i2c_driver fsa9480_i2c_driver = { - .driver = { - .name = "fsa9480", - .pm = FSA9480_PM_OPS, - }, - .probe = fsa9480_probe, - .remove = fsa9480_remove, - .id_table = fsa9480_id, -}; - -module_i2c_driver(fsa9480_i2c_driver); - -MODULE_AUTHOR("Minkyu Kang <mk7.kang@samsung.com>"); -MODULE_DESCRIPTION("FSA9480 USB Switch driver"); -MODULE_LICENSE("GPL"); diff --git a/include/linux/platform_data/fsa9480.h b/include/linux/platform_data/fsa9480.h deleted file mode 100644 index dea8d84448ec..000000000000 --- a/include/linux/platform_data/fsa9480.h +++ /dev/null @@ -1,24 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2010 Samsung Electronics - * Minkyu Kang <mk7.kang@samsung.com> - */ - -#ifndef _FSA9480_H_ -#define _FSA9480_H_ - -#define FSA9480_ATTACHED 1 -#define FSA9480_DETACHED 0 - -struct fsa9480_platform_data { - void (*cfg_gpio) (void); - void (*usb_cb) (u8 attached); - void (*uart_cb) (u8 attached); - void (*charger_cb) (u8 attached); - void (*jig_cb) (u8 attached); - void (*reset_cb) (void); - void (*usb_power) (u8 on); - int wakeup; -}; - -#endif /* _FSA9480_H_ */ |