From ca3dfd6a6f8364c1d51e548adb4564702f1141e9 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 10 Sep 2010 17:29:14 -0300 Subject: [PATCH] [media] em28xx: Add support for Leadership ISDB-T This device uses an em2874B + Sharp 921 One Seg frontend. Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab --- Documentation/video4linux/CARDLIST.em28xx | 2 +- drivers/media/video/em28xx/Kconfig | 1 + drivers/media/video/em28xx/em28xx-cards.c | 66 +++++++++++++++++++++++++++++-- drivers/media/video/em28xx/em28xx-dvb.c | 16 ++++++++ drivers/media/video/em28xx/em28xx.h | 2 + 5 files changed, 82 insertions(+), 5 deletions(-) diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index ac2616a..3ca1ef7 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -1,5 +1,5 @@ 0 -> Unknown EM2800 video grabber (em2800) [eb1a:2800] - 1 -> Unknown EM2750/28xx video grabber (em2820/em2840) [eb1a:2710,eb1a:2820,eb1a:2821,eb1a:2860,eb1a:2861,eb1a:2862,eb1a:2863,eb1a:2870,eb1a:2881,eb1a:2883,eb1a:2868] + 1 -> Unknown EM2750/28xx video grabber (em2820/em2840) [eb1a:2710,eb1a:2820,eb1a:2821,eb1a:2860,eb1a:2861,eb1a:2862,eb1a:2863,eb1a:2870,eb1a:2881,eb1a:2883,eb1a:2868,eb1a:2875] 2 -> Terratec Cinergy 250 USB (em2820/em2840) [0ccd:0036] 3 -> Pinnacle PCTV USB 2 (em2820/em2840) [2304:0208] 4 -> Hauppauge WinTV USB 2 (em2820/em2840) [2040:4200,2040:4201] diff --git a/drivers/media/video/em28xx/Kconfig b/drivers/media/video/em28xx/Kconfig index 66aefd6..8d38c5f 100644 --- a/drivers/media/video/em28xx/Kconfig +++ b/drivers/media/video/em28xx/Kconfig @@ -37,6 +37,7 @@ config VIDEO_EM28XX_DVB select DVB_LGDT330X if !DVB_FE_CUSTOMISE select DVB_ZL10353 if !DVB_FE_CUSTOMISE select DVB_TDA10023 if !DVB_FE_CUSTOMISE + select DVB_S921 if !DVB_FE_CUSTOMISE select VIDEOBUF_DVB ---help--- This adds support for DVB cards based on the diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index f7e9168..24caa851 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -268,6 +268,20 @@ static struct em28xx_reg_seq dikom_dk300_digital[] = { }; +/* Reset for the most [digital] boards */ +static struct em28xx_reg_seq leadership_digital[] = { + {EM2874_R80_GPIO, 0x70, 0xff, 10}, + { -1, -1, -1, -1}, +}; + +static struct em28xx_reg_seq leadership_reset[] = { + {EM2874_R80_GPIO, 0xf0, 0xff, 10}, + {EM2874_R80_GPIO, 0xb0, 0xff, 10}, + {EM2874_R80_GPIO, 0xf0, 0xff, 10}, + { -1, -1, -1, -1}, +}; + + /* * Board definitions */ @@ -1224,6 +1238,19 @@ struct em28xx_board em28xx_boards[] = { .vmux = SAA7115_COMPOSITE0, } }, }, + + [EM2874_LEADERSHIP_ISDBT] = { + .i2c_speed = EM2874_I2C_SECONDARY_BUS_SELECT | + EM28XX_I2C_CLK_WAIT_ENABLE | + EM28XX_I2C_FREQ_100_KHZ, + .xclk = EM28XX_XCLK_FREQUENCY_10MHZ, + .name = "EM2874 Leadership ISDBT", + .tuner_type = TUNER_ABSENT, + .tuner_gpio = leadership_reset, + .dvb_gpio = leadership_digital, + .has_dvb = 1, + }, + [EM2880_BOARD_MSI_DIGIVOX_AD] = { .name = "MSI DigiVox A/D", .valid = EM28XX_BOARD_NOT_VALIDATED, @@ -1754,6 +1781,8 @@ struct usb_device_id em28xx_id_table[] = { .driver_info = EM2820_BOARD_UNKNOWN }, { USB_DEVICE(0xeb1a, 0x2868), .driver_info = EM2820_BOARD_UNKNOWN }, + { USB_DEVICE(0xeb1a, 0x2875), + .driver_info = EM2820_BOARD_UNKNOWN }, { USB_DEVICE(0xeb1a, 0xe300), .driver_info = EM2861_BOARD_KWORLD_PVRTV_300U }, { USB_DEVICE(0xeb1a, 0xe303), @@ -1873,6 +1902,7 @@ static struct em28xx_hash_table em28xx_i2c_hash[] = { {0x77800080, EM2860_BOARD_TVP5150_REFERENCE_DESIGN, TUNER_ABSENT}, {0xc51200e3, EM2820_BOARD_GADMEI_TVR200, TUNER_LG_PAL_NEW_TAPC}, {0x4ba50080, EM2861_BOARD_GADMEI_UTV330PLUS, TUNER_TNF_5335MF}, + {0x6b800080, EM2874_LEADERSHIP_ISDBT, TUNER_ABSENT}, }; /* I2C possible address to saa7115, tvp5150, msp3400, tvaudio */ @@ -2430,8 +2460,36 @@ void em28xx_card_setup(struct em28xx *dev) dev->board.is_webcam = 0; else dev->progressive = 1; - } else - em28xx_set_model(dev); + } + + if (!dev->board.is_webcam) { + switch (dev->model) { + case EM2820_BOARD_UNKNOWN: + case EM2800_BOARD_UNKNOWN: + /* + * The K-WORLD DVB-T 310U is detected as an MSI Digivox AD. + * + * This occurs because they share identical USB vendor and + * product IDs. + * + * What we do here is look up the EEPROM hash of the K-WORLD + * and if it is found then we decide that we do not have + * a DIGIVOX and reset the device to the K-WORLD instead. + * + * This solution is only valid if they do not share eeprom + * hash identities which has not been determined as yet. + */ + if (em28xx_hint_board(dev) < 0) + em28xx_errdev("Board not discovered\n"); + else { + em28xx_set_model(dev); + em28xx_pre_card_setup(dev); + } + break; + default: + em28xx_set_model(dev); + } + } em28xx_info("Identified as %s (card=%d)\n", dev->board.name, dev->model); @@ -2749,8 +2807,8 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev, em28xx_pre_card_setup(dev); if (!dev->board.is_em2800) { - /* Sets I2C speed to 100 KHz */ - retval = em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40); + /* Resets I2C speed */ + em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, dev->board.i2c_speed); if (retval < 0) { em28xx_errdev("%s: em28xx_write_regs_req failed!" " retval [%d]\n", diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c index 3ac8d30..c7c04bf 100644 --- a/drivers/media/video/em28xx/em28xx-dvb.c +++ b/drivers/media/video/em28xx/em28xx-dvb.c @@ -37,6 +37,7 @@ #include "mt352_priv.h" /* FIXME */ #include "tda1002x.h" #include "tda18271.h" +#include "s921.h" MODULE_DESCRIPTION("driver for em28xx based DVB cards"); MODULE_AUTHOR("Mauro Carvalho Chehab "); @@ -245,6 +246,10 @@ static struct lgdt3305_config em2870_lgdt3304_dev = { .qam_if_khz = 4000, }; +static struct s921_config sharp_isdbt = { + .demod_address = 0x30 >> 1 +}; + static struct zl10353_config em28xx_zl10353_with_xc3028 = { .demod_address = (0x1e >> 1), .no_tuner = 1, @@ -481,6 +486,7 @@ static int dvb_init(struct em28xx *dev) if (!dev->board.has_dvb) { /* This device does not support the extension */ + printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n"); return 0; } @@ -496,6 +502,16 @@ static int dvb_init(struct em28xx *dev) em28xx_set_mode(dev, EM28XX_DIGITAL_MODE); /* init frontend */ switch (dev->model) { + case EM2874_LEADERSHIP_ISDBT: + dvb->frontend = dvb_attach(s921_attach, + &sharp_isdbt, &dev->i2c_adap); + + if (!dvb->frontend) { + result = -EINVAL; + goto out_free; + } + + break; case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850: case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950: case EM2880_BOARD_PINNACLE_PCTV_HD_PRO: diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 6a75e6a..6a48043 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -117,6 +117,8 @@ #define EM2800_BOARD_VC211A 74 #define EM2882_BOARD_DIKOM_DK300 75 #define EM2870_BOARD_KWORLD_A340 76 +#define EM2874_LEADERSHIP_ISDBT 77 + /* Limits minimum and default number of buffers */ #define EM28XX_MIN_BUF 4 -- 2.7.4