diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-input.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-input.c | 250 |
1 files changed, 165 insertions, 85 deletions
diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c index 2630b265b0e8..fce5f7680c99 100644 --- a/drivers/media/video/em28xx/em28xx-input.c +++ b/drivers/media/video/em28xx/em28xx-input.c @@ -80,7 +80,7 @@ struct em28xx_IR { I2C IR based get keycodes - should be used with ir-kbd-i2c **********************************************************/ -int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +static int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { unsigned char b; @@ -108,7 +108,7 @@ int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) return 1; } -int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +static int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { unsigned char buf[2]; u16 code; @@ -157,7 +157,7 @@ int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) return 1; } -int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, +static int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { unsigned char buf[3]; @@ -179,7 +179,8 @@ int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, return 1; } -int em28xx_get_key_winfast_usbii_deluxe(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +static int em28xx_get_key_winfast_usbii_deluxe(struct IR_i2c *ir, u32 *ir_key, + u32 *ir_raw) { unsigned char subaddr, keydetect, key; @@ -387,7 +388,138 @@ int em28xx_ir_change_protocol(struct rc_dev *rc_dev, u64 rc_type) return rc; } -int em28xx_ir_init(struct em28xx *dev) +static void em28xx_register_i2c_ir(struct em28xx *dev) +{ + /* Leadtek winfast tv USBII deluxe can find a non working IR-device */ + /* at address 0x18, so if that address is needed for another board in */ + /* the future, please put it after 0x1f. */ + struct i2c_board_info info; + const unsigned short addr_list[] = { + 0x1f, 0x30, 0x47, I2C_CLIENT_END + }; + + memset(&info, 0, sizeof(struct i2c_board_info)); + memset(&dev->init_data, 0, sizeof(dev->init_data)); + strlcpy(info.type, "ir_video", I2C_NAME_SIZE); + + /* detect & configure */ + switch (dev->model) { + case EM2800_BOARD_TERRATEC_CINERGY_200: + case EM2820_BOARD_TERRATEC_CINERGY_250: + dev->init_data.ir_codes = RC_MAP_EM_TERRATEC; + dev->init_data.get_key = em28xx_get_key_terratec; + dev->init_data.name = "i2c IR (EM28XX Terratec)"; + break; + case EM2820_BOARD_PINNACLE_USB_2: + dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY; + dev->init_data.get_key = em28xx_get_key_pinnacle_usb_grey; + dev->init_data.name = "i2c IR (EM28XX Pinnacle PCTV)"; + break; + case EM2820_BOARD_HAUPPAUGE_WINTV_USB_2: + dev->init_data.ir_codes = RC_MAP_HAUPPAUGE; + dev->init_data.get_key = em28xx_get_key_em_haup; + dev->init_data.name = "i2c IR (EM2840 Hauppauge)"; + break; + case EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE: + dev->init_data.ir_codes = RC_MAP_WINFAST_USBII_DELUXE; + dev->init_data.get_key = em28xx_get_key_winfast_usbii_deluxe; + dev->init_data.name = "i2c IR (EM2820 Winfast TV USBII Deluxe)"; + break; + } + + if (dev->init_data.name) + info.platform_data = &dev->init_data; + i2c_new_probed_device(&dev->i2c_adap, &info, addr_list, NULL); +} + +/********************************************************** + Handle Webcam snapshot button + **********************************************************/ + +static void em28xx_query_sbutton(struct work_struct *work) +{ + /* Poll the register and see if the button is depressed */ + struct em28xx *dev = + container_of(work, struct em28xx, sbutton_query_work.work); + int ret; + + ret = em28xx_read_reg(dev, EM28XX_R0C_USBSUSP); + + if (ret & EM28XX_R0C_USBSUSP_SNAPSHOT) { + u8 cleared; + /* Button is depressed, clear the register */ + cleared = ((u8) ret) & ~EM28XX_R0C_USBSUSP_SNAPSHOT; + em28xx_write_regs(dev, EM28XX_R0C_USBSUSP, &cleared, 1); + + /* Not emulate the keypress */ + input_report_key(dev->sbutton_input_dev, EM28XX_SNAPSHOT_KEY, + 1); + /* Now unpress the key */ + input_report_key(dev->sbutton_input_dev, EM28XX_SNAPSHOT_KEY, + 0); + } + + /* Schedule next poll */ + schedule_delayed_work(&dev->sbutton_query_work, + msecs_to_jiffies(EM28XX_SBUTTON_QUERY_INTERVAL)); +} + +static void em28xx_register_snapshot_button(struct em28xx *dev) +{ + struct input_dev *input_dev; + int err; + + em28xx_info("Registering snapshot button...\n"); + input_dev = input_allocate_device(); + if (!input_dev) { + em28xx_errdev("input_allocate_device failed\n"); + return; + } + + usb_make_path(dev->udev, dev->snapshot_button_path, + sizeof(dev->snapshot_button_path)); + strlcat(dev->snapshot_button_path, "/sbutton", + sizeof(dev->snapshot_button_path)); + INIT_DELAYED_WORK(&dev->sbutton_query_work, em28xx_query_sbutton); + + input_dev->name = "em28xx snapshot button"; + input_dev->phys = dev->snapshot_button_path; + input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); + set_bit(EM28XX_SNAPSHOT_KEY, input_dev->keybit); + input_dev->keycodesize = 0; + input_dev->keycodemax = 0; + input_dev->id.bustype = BUS_USB; + input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor); + input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct); + input_dev->id.version = 1; + input_dev->dev.parent = &dev->udev->dev; + + err = input_register_device(input_dev); + if (err) { + em28xx_errdev("input_register_device failed\n"); + input_free_device(input_dev); + return; + } + + dev->sbutton_input_dev = input_dev; + schedule_delayed_work(&dev->sbutton_query_work, + msecs_to_jiffies(EM28XX_SBUTTON_QUERY_INTERVAL)); + return; + +} + +static void em28xx_deregister_snapshot_button(struct em28xx *dev) +{ + if (dev->sbutton_input_dev != NULL) { + em28xx_info("Deregistering snapshot button\n"); + cancel_delayed_work_sync(&dev->sbutton_query_work); + input_unregister_device(dev->sbutton_input_dev); + dev->sbutton_input_dev = NULL; + } + return; +} + +static int em28xx_ir_init(struct em28xx *dev) { struct em28xx_IR *ir; struct rc_dev *rc; @@ -448,6 +580,15 @@ int em28xx_ir_init(struct em28xx *dev) if (err) goto err_out_stop; + em28xx_register_i2c_ir(dev); + +#if defined(CONFIG_MODULES) && defined(MODULE) + if (dev->board.has_ir_i2c) + request_module("ir-kbd-i2c"); +#endif + if (dev->board.has_snapshot_button) + em28xx_register_snapshot_button(dev); + return 0; err_out_stop: @@ -458,10 +599,12 @@ int em28xx_ir_init(struct em28xx *dev) return err; } -int em28xx_ir_fini(struct em28xx *dev) +static int em28xx_ir_fini(struct em28xx *dev) { struct em28xx_IR *ir = dev->ir; + em28xx_deregister_snapshot_button(dev); + /* skip detach on non attached boards */ if (!ir) return 0; @@ -475,89 +618,26 @@ int em28xx_ir_fini(struct em28xx *dev) return 0; } -/********************************************************** - Handle Webcam snapshot button - **********************************************************/ +static struct em28xx_ops rc_ops = { + .id = EM28XX_RC, + .name = "Em28xx Input Extension", + .init = em28xx_ir_init, + .fini = em28xx_ir_fini, +}; -static void em28xx_query_sbutton(struct work_struct *work) +static int __init em28xx_rc_register(void) { - /* Poll the register and see if the button is depressed */ - struct em28xx *dev = - container_of(work, struct em28xx, sbutton_query_work.work); - int ret; - - ret = em28xx_read_reg(dev, EM28XX_R0C_USBSUSP); - - if (ret & EM28XX_R0C_USBSUSP_SNAPSHOT) { - u8 cleared; - /* Button is depressed, clear the register */ - cleared = ((u8) ret) & ~EM28XX_R0C_USBSUSP_SNAPSHOT; - em28xx_write_regs(dev, EM28XX_R0C_USBSUSP, &cleared, 1); - - /* Not emulate the keypress */ - input_report_key(dev->sbutton_input_dev, EM28XX_SNAPSHOT_KEY, - 1); - /* Now unpress the key */ - input_report_key(dev->sbutton_input_dev, EM28XX_SNAPSHOT_KEY, - 0); - } - - /* Schedule next poll */ - schedule_delayed_work(&dev->sbutton_query_work, - msecs_to_jiffies(EM28XX_SBUTTON_QUERY_INTERVAL)); + return em28xx_register_extension(&rc_ops); } -void em28xx_register_snapshot_button(struct em28xx *dev) +static void __exit em28xx_rc_unregister(void) { - struct input_dev *input_dev; - int err; - - em28xx_info("Registering snapshot button...\n"); - input_dev = input_allocate_device(); - if (!input_dev) { - em28xx_errdev("input_allocate_device failed\n"); - return; - } - - usb_make_path(dev->udev, dev->snapshot_button_path, - sizeof(dev->snapshot_button_path)); - strlcat(dev->snapshot_button_path, "/sbutton", - sizeof(dev->snapshot_button_path)); - INIT_DELAYED_WORK(&dev->sbutton_query_work, em28xx_query_sbutton); - - input_dev->name = "em28xx snapshot button"; - input_dev->phys = dev->snapshot_button_path; - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); - set_bit(EM28XX_SNAPSHOT_KEY, input_dev->keybit); - input_dev->keycodesize = 0; - input_dev->keycodemax = 0; - input_dev->id.bustype = BUS_USB; - input_dev->id.vendor = le16_to_cpu(dev->udev->descriptor.idVendor); - input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct); - input_dev->id.version = 1; - input_dev->dev.parent = &dev->udev->dev; - - err = input_register_device(input_dev); - if (err) { - em28xx_errdev("input_register_device failed\n"); - input_free_device(input_dev); - return; - } - - dev->sbutton_input_dev = input_dev; - schedule_delayed_work(&dev->sbutton_query_work, - msecs_to_jiffies(EM28XX_SBUTTON_QUERY_INTERVAL)); - return; - + em28xx_unregister_extension(&rc_ops); } -void em28xx_deregister_snapshot_button(struct em28xx *dev) -{ - if (dev->sbutton_input_dev != NULL) { - em28xx_info("Deregistering snapshot button\n"); - cancel_delayed_work_sync(&dev->sbutton_query_work); - input_unregister_device(dev->sbutton_input_dev); - dev->sbutton_input_dev = NULL; - } - return; -} +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); +MODULE_DESCRIPTION("Em28xx Input driver"); + +module_init(em28xx_rc_register); +module_exit(em28xx_rc_unregister); |