From: Devin Heitmueller Date: Sat, 28 Jun 2008 11:57:06 +0000 (-0300) Subject: V4L/DVB (8123): Add support for em2860 based PointNix Intra-Oral Camera X-Git-Tag: v2.6.27-rc1~966^2~191 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a9fc52bcbeb5245b58d23c558f3e3e8f18bebbc3;p=linux-2.6 V4L/DVB (8123): Add support for em2860 based PointNix Intra-Oral Camera em28xx-cards.c em28xx-input.c em28xx-video.c em28xx.h - Add support for the PointNix Intra-Oral Camera, which required addition of a construct for reading the "snapshot" button (provided on the em2860 and em2880 chips, but this is the first case where I have seen it actually used in a product). The button is wired to pin 56 on the em2880. http://www.pointnix.com/ENG/dental/product_02.asp Thanks to Roberto Mantovani for testing the changes Signed-off-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab --- diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index c7e23942c1..10591467ef 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -17,3 +17,4 @@ 16 -> Hauppauge WinTV HVR 950 (em2880) [2040:6513,2040:6517,2040:651b,2040:651f] 17 -> Pinnacle PCTV HD Pro Stick (em2880) [2304:0227] 18 -> Hauppauge WinTV HVR 900 (R2) (em2880) [2040:6502] + 19 -> PointNix Intra-Oral Camera (em2860) diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 938c51e1c8..05f0d5a150 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -426,6 +426,19 @@ struct em28xx_board em28xx_boards[] = { .amux = EM28XX_AMUX_LINE_IN, } }, }, + [EM2860_BOARD_POINTNIX_INTRAORAL_CAMERA] = { + .name = "PointNix Intra-Oral Camera", + .has_snapshot_button = 1, + .vchannels = 1, + .tda9887_conf = TDA9887_PRESENT, + .tuner_type = TUNER_ABSENT, + .decoder = EM28XX_SAA7113, + .input = { { + .type = EM28XX_VMUX_SVIDEO, + .vmux = SAA7115_SVIDEO3, + .amux = 0, + } }, + }, }; const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards); @@ -522,6 +535,7 @@ static struct em28xx_hash_table em28xx_eeprom_hash [] = { static struct em28xx_hash_table em28xx_i2c_hash[] = { {0xb06a32c3, EM2800_BOARD_TERRATEC_CINERGY_200, TUNER_LG_PAL_NEW_TAPC}, {0xf51200e3, EM2800_BOARD_VGEAR_POCKETTV, TUNER_LG_PAL_NEW_TAPC}, + {0x1ba50080, EM2860_BOARD_POINTNIX_INTRAORAL_CAMERA, TUNER_ABSENT}, }; int em28xx_tuner_callback(void *ptr, int command, int arg) @@ -554,6 +568,7 @@ static void em28xx_set_model(struct em28xx *dev) dev->has_12mhz_i2s = em28xx_boards[dev->model].has_12mhz_i2s; dev->max_range_640_480 = em28xx_boards[dev->model].max_range_640_480; dev->has_dvb = em28xx_boards[dev->model].has_dvb; + dev->has_snapshot_button = em28xx_boards[dev->model].has_snapshot_button; } /* Since em28xx_pre_card_setup() requires a proper dev->model, @@ -841,6 +856,9 @@ void em28xx_card_setup(struct em28xx *dev) em28xx_set_model(dev); } + if (dev->has_snapshot_button) + em28xx_register_snapshot_button(dev); + /* Allow override tuner type by a module parameter */ if (tuner >= 0) dev->tuner_type = tuner; diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c index bb5807159b..eab3d9511a 100644 --- a/drivers/media/video/em28xx/em28xx-input.c +++ b/drivers/media/video/em28xx/em28xx-input.c @@ -30,6 +30,10 @@ #include "em28xx.h" +#define EM28XX_SNAPSHOT_KEY KEY_CAMERA +#define EM28XX_SBUTTON_QUERY_INTERVAL 500 +#define EM28XX_R0C_USBSUSP_SNAPSHOT 0x20 + static unsigned int ir_debug; module_param(ir_debug, int, 0644); MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]"); @@ -124,6 +128,89 @@ int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, return 1; } +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)); +} + +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; + +} + +void em28xx_deregister_snapshot_button(struct em28xx *dev) +{ + if (dev->sbutton_input_dev != NULL) { + em28xx_info("Deregistering snapshot button\n"); + cancel_rearming_delayed_work(&dev->sbutton_query_work); + input_unregister_device(dev->sbutton_input_dev); + dev->sbutton_input_dev = NULL; + } + return; +} + /* ---------------------------------------------------------------------- * Local variables: * c-basic-offset: 8 diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index 1c3e8b6291..2d9f14d2a0 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -1590,6 +1590,8 @@ static void em28xx_release_resources(struct em28xx *dev) dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN, dev->vbi_dev->minor-MINOR_VFL_TYPE_VBI_MIN); list_del(&dev->devlist); + if (dev->sbutton_input_dev) + em28xx_deregister_snapshot_button(dev); if (dev->radio_dev) { if (-1 != dev->radio_dev->minor) video_unregister_device(dev->radio_dev); diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index cff618b2d1..89842c5d64 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -57,6 +57,7 @@ #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950 16 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18 +#define EM2860_BOARD_POINTNIX_INTRAORAL_CAMERA 19 /* Limits minimum and default number of buffers */ #define EM28XX_MIN_BUF 4 @@ -249,6 +250,7 @@ struct em28xx_board { unsigned int has_12mhz_i2s:1; unsigned int max_range_640_480:1; unsigned int has_dvb:1; + unsigned int has_snapshot_button:1; enum em28xx_decoder decoder; @@ -328,6 +330,7 @@ struct em28xx { unsigned int has_12mhz_i2s:1; unsigned int max_range_640_480:1; unsigned int has_dvb:1; + unsigned int has_snapshot_button:1; /* Some older em28xx chips needs a waiting time after writing */ unsigned int wait_after_write; @@ -418,6 +421,11 @@ struct em28xx { /* Caches GPO and GPIO registers */ unsigned char reg_gpo, reg_gpio; + /* Snapshot button */ + char snapshot_button_path[30]; /* path of the input dev */ + struct input_dev *sbutton_input_dev; + struct delayed_work sbutton_query_work; + struct em28xx_dvb *dvb; }; @@ -483,6 +491,8 @@ int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); +void em28xx_register_snapshot_button(struct em28xx *dev); +void em28xx_deregister_snapshot_button(struct em28xx *dev); /* printk macros */