From: Mauro Carvalho Chehab Date: Tue, 25 Nov 2008 10:05:06 +0000 (-0300) Subject: V4L/DVB (9747): em28xx: Properly handles XCLK and I2C speed X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a2070c665459ac37a36bebae5e97bb4a2568990e;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git V4L/DVB (9747): em28xx: Properly handles XCLK and I2C speed The previous patches removed XCLK and I2C magic. Now, we finally know what those registers do. Also, only a very few cards need different setups for those. Instead of keeping the setups for those values inside the per-device hack magic switch, move the uncommon values to the board-specific struct, and have a common setup for all other boards. So, almost 100 lines of hacking magic were removed. A co-lateral effect of this patch is that it also fixes a bug at em28xx-core, where xclk were set, without taking any care about not overriding a previous xclk setup. Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 83f352a41041..729c76c59ec5 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -55,6 +55,7 @@ struct em28xx_board em28xx_boards[] = { [EM2750_BOARD_UNKNOWN] = { .name = "Unknown EM2750/EM2751 webcam grabber", .vchannels = 1, + .xclk = EM28XX_XCLK_FREQUENCY_48MHZ, .input = { { .type = EM28XX_VMUX_COMPOSITE1, .vmux = 0, @@ -78,15 +79,15 @@ struct em28xx_board em28xx_boards[] = { } }, }, [EM2820_BOARD_UNKNOWN] = { - .name = "Unknown EM2750/28xx video grabber", - .is_em2800 = 0, - .tuner_type = TUNER_ABSENT, + .name = "Unknown EM2750/28xx video grabber", + .tuner_type = TUNER_ABSENT, }, [EM2750_BOARD_DLCW_130] = { /* Beijing Huaqi Information Digital Technology Co., Ltd */ .name = "Huaqi DLCW-130", .valid = EM28XX_BOARD_NOT_VALIDATED, .vchannels = 1, + .xclk = EM28XX_XCLK_FREQUENCY_48MHZ, .input = { { .type = EM28XX_VMUX_COMPOSITE1, .vmux = 0, @@ -514,6 +515,10 @@ struct em28xx_board em28xx_boards[] = { .name = "Pinnacle PCTV DVB-T", .valid = EM28XX_BOARD_NOT_VALIDATED, .tuner_type = TUNER_ABSENT, /* MT2060 */ + + /* djh - I have serious doubts this is right... */ + .xclk = EM28XX_XCLK_IR_RC5_MODE | + EM28XX_XCLK_FREQUENCY_10MHZ, }, [EM2870_BOARD_COMPRO_VIDEOMATE] = { .name = "Compro, VideoMate U3", @@ -547,7 +552,7 @@ struct em28xx_board em28xx_boards[] = { .tda9887_conf = TDA9887_PRESENT, .tuner_type = TUNER_XC2028, .mts_firmware = 1, - .has_dvb = 1, + .has_dvb = 1, .decoder = EM28XX_TVP5150, .input = { { .type = EM28XX_VMUX_TELEVISION, @@ -589,7 +594,6 @@ struct em28xx_board em28xx_boards[] = { .vchannels = 3, .tuner_type = TUNER_XC2028, .mts_firmware = 1, - .has_12mhz_i2s = 1, .has_dvb = 1, .ir_codes = ir_codes_hauppauge_new, .decoder = EM28XX_TVP5150, @@ -612,7 +616,6 @@ struct em28xx_board em28xx_boards[] = { .vchannels = 3, .tuner_type = TUNER_XC2028, .mts_firmware = 1, - .has_12mhz_i2s = 1, .has_dvb = 1, .ir_codes = ir_codes_pinnacle_pctv_hd, .decoder = EM28XX_TVP5150, @@ -635,7 +638,6 @@ struct em28xx_board em28xx_boards[] = { .vchannels = 3, .tuner_type = TUNER_XC2028, .mts_firmware = 1, - .has_12mhz_i2s = 1, .has_dvb = 1, .ir_codes = ir_codes_ati_tv_wonder_hd_600, .decoder = EM28XX_TVP5150, @@ -1091,9 +1093,12 @@ struct em28xx_board em28xx_boards[] = { .name = "Pinnacle PCTV HD Mini", .vchannels = 0, .tuner_type = TUNER_ABSENT, - .has_dvb = 1, - .ir_codes = ir_codes_pinnacle_pctv_hd, + .has_dvb = 1, + .ir_codes = ir_codes_pinnacle_pctv_hd, .decoder = EM28XX_NODECODER, + .i2c_speed = EM28XX_I2C_CLK_WAIT_ENABLE | + EM2874_I2C_SECONDARY_BUS_SELECT | + EM28XX_I2C_FREQ_400_KHZ, #ifdef DJH_DEBUG .input = { { .type = EM28XX_VMUX_TELEVISION, @@ -1326,7 +1331,8 @@ static void em28xx_set_model(struct em28xx *dev) dev->tda9887_conf = em28xx_boards[dev->model].tda9887_conf; dev->decoder = em28xx_boards[dev->model].decoder; dev->video_inputs = em28xx_boards[dev->model].vchannels; - dev->has_12mhz_i2s = em28xx_boards[dev->model].has_12mhz_i2s; + dev->xclk = em28xx_boards[dev->model].xclk; + dev->i2c_speed = em28xx_boards[dev->model].i2c_speed; 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; @@ -1385,6 +1391,21 @@ void em28xx_pre_card_setup(struct em28xx *dev) em28xx_set_model(dev); + /* Those are the default values for the majority of boards + Use those values if not specified otherwise at boards entry + */ + if (!dev->xclk) + dev->xclk = EM28XX_XCLK_IR_RC5_MODE | + EM28XX_XCLK_FREQUENCY_12MHZ; + + if (!dev->i2c_speed) + dev->i2c_speed = EM28XX_I2C_CLK_WAIT_ENABLE | + EM28XX_I2C_FREQ_100_KHZ; + + em28xx_write_reg(dev, EM28XX_R0F_XCLK, dev->xclk & 0x7f); + em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, dev->i2c_speed); + msleep(50); + /* request some modules */ switch (dev->model) { case EM2880_BOARD_TERRATEC_PRODIGY_XS: @@ -1396,14 +1417,6 @@ void em28xx_pre_card_setup(struct em28xx *dev) case EM2882_BOARD_PINNACLE_HYBRID_PRO: case EM2883_BOARD_KWORLD_HYBRID_A316: case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - msleep(50); - /* Sets GPO/GPIO sequences for this device */ dev->analog_gpio = hauppauge_wintv_hvr_900_analog; dev->digital_gpio = hauppauge_wintv_hvr_900_digital; @@ -1412,16 +1425,6 @@ void em28xx_pre_card_setup(struct em28xx *dev) break; case EM2882_BOARD_TERRATEC_HYBRID_XS: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - msleep(50); - - /* should be added ir_codes here */ - /* Sets GPO/GPIO sequences for this device */ dev->analog_gpio = hauppauge_wintv_hvr_900_analog; dev->digital_gpio = hauppauge_wintv_hvr_900_digital; @@ -1436,14 +1439,6 @@ void em28xx_pre_card_setup(struct em28xx *dev) case EM2880_BOARD_KWORLD_DVB_310U: case EM2870_BOARD_KWORLD_350U: case EM2881_BOARD_DNT_DA2_HYBRID: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - msleep(50); - /* NOTE: EM2881_DNT_DA2_HYBRID spend 140 msleep for digital and analog commands. If this commands doesn't work, add this timer. */ @@ -1457,14 +1452,6 @@ void em28xx_pre_card_setup(struct em28xx *dev) case EM2880_BOARD_MSI_DIGIVOX_AD: case EM2880_BOARD_MSI_DIGIVOX_AD_II: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - msleep(50); - /* Sets GPO/GPIO sequences for this device */ dev->analog_gpio = em2880_msi_digivox_ad_analog; dev->digital_gpio = em2880_msi_digivox_ad_digital; @@ -1472,19 +1459,7 @@ void em28xx_pre_card_setup(struct em28xx *dev) dev->tun_digital_gpio = default_callback; break; - case EM2750_BOARD_UNKNOWN: - case EM2750_BOARD_DLCW_130: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_FREQUENCY_48MHZ); - break; - case EM2861_BOARD_PLEXTOR_PX_TV100U: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); /* FIXME guess */ /* Turn on analog audio output */ em28xx_write_reg(dev, EM28XX_R08_GPIO, 0xfd); @@ -1492,13 +1467,6 @@ void em28xx_pre_card_setup(struct em28xx *dev) case EM2861_BOARD_KWORLD_PVRTV_300U: case EM2880_BOARD_KWORLD_DVB_305U: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - msleep(10); em28xx_write_reg(dev, EM28XX_R08_GPIO, 0x6d); msleep(10); em28xx_write_reg(dev, EM28XX_R08_GPIO, 0x7d); @@ -1506,25 +1474,11 @@ void em28xx_pre_card_setup(struct em28xx *dev) break; case EM2870_BOARD_KWORLD_355U: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - msleep(50); - /* Sets GPO/GPIO sequences for this device */ dev->digital_gpio = em2870_kworld_355u_digital; break; case EM2870_BOARD_COMPRO_VIDEOMATE: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); /* TODO: someone can do some cleanup here... not everything's needed */ em28xx_write_reg(dev, EM2880_R04_GPO, 0x00); @@ -1542,12 +1496,6 @@ void em28xx_pre_card_setup(struct em28xx *dev) break; case EM2870_BOARD_TERRATEC_XS_MT2060: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); /* this device needs some gpio writes to get the DVB-T demod work */ em28xx_write_reg(dev, EM28XX_R08_GPIO, 0xfe); @@ -1559,10 +1507,6 @@ void em28xx_pre_card_setup(struct em28xx *dev) break; case EM2870_BOARD_PINNACLE_PCTV_DVB: - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - /* this device needs some gpio writes to get the DVB-T demod work */ em28xx_write_reg(dev, EM28XX_R08_GPIO, 0xfe); @@ -1571,53 +1515,15 @@ void em28xx_pre_card_setup(struct em28xx *dev) mdelay(70); em28xx_write_reg(dev, EM28XX_R08_GPIO, 0xfe); mdelay(70); - /* switch em2880 rc protocol */ - /* djh - I have serious doubts this is right... */ - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_10MHZ); - /* should be added ir_codes here */ break; case EM2820_BOARD_GADMEI_UTV310: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - /* Turn on analog audio output */ - em28xx_write_reg(dev, EM28XX_R08_GPIO, 0xfd); - break; - - case EM2860_BOARD_GADMEI_UTV330: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - /* should be added ir_codes here */ - break; - case EM2820_BOARD_MSI_VOX_USB_2: - em28xx_write_reg(dev, EM28XX_R0F_XCLK, - EM28XX_XCLK_IR_RC5_MODE | - EM28XX_XCLK_FREQUENCY_12MHZ); - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM28XX_I2C_FREQ_100_KHZ); - /* enables audio for that device */ + /* enables audio for that devices */ em28xx_write_reg(dev, EM28XX_R08_GPIO, 0xfd); break; case EM2874_BOARD_PINNACLE_PCTV_80E: - /* Set 400 KHz clock and select secondary i2c bus */ - em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, - EM28XX_I2C_CLK_WAIT_ENABLE | - EM2874_I2C_SECONDARY_BUS_SELECT | - EM28XX_I2C_FREQ_400_KHZ); - dev->digital_gpio = em2874_pinnacle_80e_digital; break; } diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c index 413428aeccd7..53c7252416f0 100644 --- a/drivers/media/video/em28xx/em28xx-core.c +++ b/drivers/media/video/em28xx/em28xx-core.c @@ -399,7 +399,7 @@ struct em28xx_vol_table outputs[] = { int em28xx_audio_analog_set(struct em28xx *dev) { int ret, i; - u8 xclk = 0x07; + u8 xclk; if (!dev->audio_mode.has_audio) return 0; @@ -417,13 +417,11 @@ int em28xx_audio_analog_set(struct em28xx *dev) } } - if (dev->has_12mhz_i2s) - xclk |= 0x20; - + xclk = dev->xclk & 0x7f; if (!dev->mute) xclk |= 0x80; - ret = em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, xclk, 0xa7); + ret = em28xx_write_reg(dev, EM28XX_R0F_XCLK, xclk); if (ret < 0) return ret; msleep(10); diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 4d50d60278c5..3bf23d384266 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -338,12 +338,13 @@ struct em28xx_board { unsigned int is_em2800:1; unsigned int has_msp34xx:1; unsigned int mts_firmware:1; - unsigned int has_12mhz_i2s:1; unsigned int max_range_640_480:1; unsigned int has_dvb:1; unsigned int has_snapshot_button:1; unsigned int valid:1; + unsigned char xclk, i2c_speed; + enum em28xx_decoder decoder; struct em28xx_input input[MAX_EM28XX_INPUT]; @@ -422,12 +423,13 @@ struct em28xx { unsigned int stream_on:1; /* Locks streams */ unsigned int has_audio_class:1; unsigned int has_alsa_audio:1; - unsigned int has_12mhz_i2s:1; unsigned int max_range_640_480:1; unsigned int has_dvb:1; unsigned int has_snapshot_button:1; unsigned int valid:1; /* report for validated boards */ + unsigned char xclk, i2c_speed; + struct em28xx_IR *ir; /* Some older em28xx chips needs a waiting time after writing */