diff options
author | Hans Verkuil <hverkuil@xs4all.nl> | 2006-03-19 11:21:56 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-03-24 19:26:57 (GMT) |
commit | de533ccf8dd51f38ef3c1751f9eb5ad3f2fcfad9 (patch) | |
tree | a82aedd3ae45a9455c24cda20e51cd8e7596182f /drivers/media/video/msp3400-kthreads.c | |
parent | 9a80a93da738c631de644175fbd669ab9a9cb624 (diff) | |
download | linux-de533ccf8dd51f38ef3c1751f9eb5ad3f2fcfad9.tar.xz |
V4L/DVB (3580): Last round of msp3400 cleanups before adding routing commands
Lots of cleanups:
- remove duplicate actions
- add D/K3 Dual FM-Stereo and D/K NICAM FM (HDEV3) support
- put prescales in the proper place
- add missing D/K NICAM
- msp34xxg_reset now only resets instead of also starting the autodetect
(moved that to msp34xxg_thread)
- fix support for SAP.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/msp3400-kthreads.c')
-rw-r--r-- | drivers/media/video/msp3400-kthreads.c | 188 |
1 files changed, 105 insertions, 83 deletions
diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c index 972f2c8..88b216c 100644 --- a/drivers/media/video/msp3400-kthreads.c +++ b/drivers/media/video/msp3400-kthreads.c @@ -44,11 +44,13 @@ static struct { { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" }, { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" }, { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" }, + { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), "6.5/5.74 D/K3 Dual FM-Stereo" }, { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" }, { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" }, { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" }, { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" }, { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" }, + { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV3)" }, { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" }, { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" }, { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" }, @@ -206,12 +208,13 @@ void msp3400c_set_mode(struct i2c_client *client, int mode) msp3400c_set_carrier(client, data->cdo1, data->cdo2); msp_set_source(client, data->dsp_src); - msp_write_dsp(client, 0x000e, data->dsp_matrix); + /* set prescales */ - if (state->has_nicam) { - /* nicam prescale */ - msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */ - } + /* volume prescale for SCART (AM mono input) */ + msp_write_dsp(client, 0x000d, 0x1900); + msp_write_dsp(client, 0x000e, data->dsp_matrix); + if (state->has_nicam) /* nicam prescale */ + msp_write_dsp(client, 0x0010, 0x5a00); } /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP, @@ -270,7 +273,6 @@ static void msp3400c_set_audmode(struct i2c_client *client) case MSP_MODE_FM_NICAM2: case MSP_MODE_AM_NICAM: v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr); - msp3400c_set_carrier(client, state->second, state->main); if (state->nicam_on) src = 0x0100; /* NICAM */ break; @@ -426,8 +428,8 @@ static void watch_stereo(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); - if (msp3400c_detect_stereo(client)) { - msp3400c_set_audmode(client); + if (msp_detect_stereo(client)) { + msp_set_audmode(client); } if (msp_once) @@ -463,7 +465,7 @@ int msp3400c_thread(void *data) /* mute */ msp_set_mute(client); - msp3400c_set_mode(client, MSP_MODE_AM_DETECT /* +1 */ ); + msp3400c_set_mode(client, MSP_MODE_AM_DETECT); val1 = val2 = 0; max1 = max2 = -1; state->watch_stereo = 0; @@ -571,8 +573,6 @@ int msp3400c_thread(void *data) state->second = msp3400c_carrier_detect_65[max2].cdo; msp3400c_set_mode(client, MSP_MODE_AM_NICAM); msp3400c_set_carrier(client, state->second, state->main); - /* volume prescale for SCART (AM mono input) */ - msp_write_dsp(client, 0x000d, 0x1900); state->watch_stereo = 1; } else if (max2 == 0 && state->has_nicam) { /* D/K NICAM */ @@ -650,7 +650,8 @@ int msp3410d_thread(void *data) if (msp_sleep(state,200)) goto restart; - /* start autodetect */ + /* start autodetect. Note: autodetect is not supported for + NTSC-M and radio, hence we force the standard in those cases. */ if (state->radio) std = 0x40; else @@ -694,23 +695,19 @@ int msp3410d_thread(void *data) v4l_dbg(1, msp_debug, client, "autodetection failed," " switching to backup standard: %s (0x%04x)\n", msp_stdlist[8].name ? msp_stdlist[8].name : "unknown",val); - val = 0x0009; + state->std = val = 0x0009; msp_write_dem(client, 0x20, val); } - /* set various prescales */ - msp_write_dsp(client, 0x0d, 0x1900); /* scart */ - msp_write_dsp(client, 0x0e, 0x2403); /* FM */ - msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ - /* set stereo */ switch (val) { case 0x0008: /* B/G NICAM */ case 0x000a: /* I NICAM */ - if (val == 0x0008) - state->mode = MSP_MODE_FM_NICAM1; - else + case 0x000b: /* D/K NICAM */ + if (val == 0x000a) state->mode = MSP_MODE_FM_NICAM2; + else + state->mode = MSP_MODE_FM_NICAM1; /* just turn on stereo */ state->rxsubchans = V4L2_TUNER_SUB_STEREO; state->nicam_on = 1; @@ -738,6 +735,7 @@ int msp3410d_thread(void *data) /* scart routing (this doesn't belong here I think) */ msp_set_scart(client,SCART_IN2,0); break; + case 0x0002: case 0x0003: case 0x0004: case 0x0005: @@ -747,12 +745,19 @@ int msp3410d_thread(void *data) break; } - /* unmute, restore misc registers */ - msp_set_audio(client); - msp_write_dsp(client, 0x13, state->acb); + /* set various prescales */ + msp_write_dsp(client, 0x0d, 0x1900); /* scart */ + msp_write_dsp(client, 0x0e, 0x3000); /* FM */ + if (state->has_nicam) + msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ + if (state->has_i2s_conf) msp_write_dem(client, 0x40, state->i2s_mode); + /* unmute, restore misc registers */ + msp_set_audio(client); + + msp_write_dsp(client, 0x13, state->acb); msp3400c_set_audmode(client); /* monitor tv audio mode, the first time don't wait @@ -771,16 +776,15 @@ int msp3410d_thread(void *data) /* ----------------------------------------------------------------------- */ -/* msp34xxG + (autoselect no-thread) */ -/* this one uses both automatic standard detection and automatic sound */ -/* select which are available in the newer G versions */ -/* struct msp: only norm, acb and source are really used in this mode */ +/* msp34xxG + (autoselect no-thread) + * this one uses both automatic standard detection and automatic sound + * select which are available in the newer G versions + * struct msp: only norm, acb and source are really used in this mode + */ /* set the same 'source' for the loudspeaker, scart and quasi-peak detector * the value for source is the same as bit 15:8 of DSP registers 0x08, * 0x0a and 0x0c: 0=mono, 1=stereo or A|B, 2=SCART, 3=stereo or A, 4=stereo or B - * - * this function replaces msp3400c_set_audmode */ static void msp34xxg_set_source(struct i2c_client *client, int source) { @@ -838,58 +842,56 @@ static int msp34xxg_modus(struct i2c_client *client) return 0x0001; } -/* (re-)initialize the msp34xxg, according to the current norm in state->norm - * return 0 if it worked, -1 if it failed - */ -static int msp34xxg_reset(struct i2c_client *client) +/* (re-)initialize the msp34xxg */ +static void msp34xxg_reset(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); - int modus, std; + int modus; - if (msp_reset(client)) - return -1; + /* initialize std to 1 (autodetect) to signal that no standard is + selected yet. */ + state->std = 1; + + msp_reset(client); /* make sure that input/output is muted (paranoid mode) */ /* ACB, mute DSP input, mute SCART 1 */ - if (msp_write_dsp(client, 0x13, 0x0f20)) - return -1; + msp_write_dsp(client, 0x13, 0x0f20); if (state->has_i2s_conf) msp_write_dem(client, 0x40, state->i2s_mode); /* step-by-step initialisation, as described in the manual */ modus = msp34xxg_modus(client); - if (state->radio) - std = 0x40; - else - std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; - modus &= ~0x03; /* STATUS_CHANGE = 0 */ - modus |= 0x01; /* AUTOMATIC_SOUND_DETECTION = 1 */ - if (msp_write_dem(client, 0x30, modus)) - return -1; - if (msp_write_dem(client, 0x20, std)) - return -1; + msp_write_dem(client, 0x30, modus); /* write the dsps that may have an influence on standard/audio autodetection right now */ msp34xxg_set_source(client, state->source); - /* AM/FM Prescale [15:8] 75khz deviation */ - if (msp_write_dsp(client, 0x0e, 0x3000)) - return -1; - - /* NICAM Prescale 9db gain (as recommended) */ - if (msp_write_dsp(client, 0x10, 0x5a00)) - return -1; + msp_write_dsp(client, 0x0d, 0x1900); /* scart */ + msp_write_dsp(client, 0x0e, 0x3000); /* FM */ + if (state->has_nicam) + msp_write_dsp(client, 0x10, 0x5a00); /* nicam */ - return 0; + /* set identification threshold. Personally, I + * I set it to a higher value than the default + * of 0x190 to ignore noisy stereo signals. + * this needs tuning. (recommended range 0x00a0-0x03c0) + * 0x7f0 = forced mono mode + * + * a2 threshold for stereo/bilingual. + * Note: this register is part of the Manual/Compatibility mode. + * It is supported by all 'G'-family chips. + */ + msp_write_dem(client, 0x22, msp_stereo_thresh); } int msp34xxg_thread(void *data) { struct i2c_client *client = data; struct msp_state *state = i2c_get_clientdata(client); - int val, std, i; + int val, i; v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n"); @@ -907,12 +909,14 @@ int msp34xxg_thread(void *data) /* setup the chip*/ msp34xxg_reset(client); - std = msp_standard; - if (std != 0x01) + state->std = state->radio ? 0x40 : msp_standard; + if (state->std != 1) goto unmute; + /* start autodetect */ + msp_write_dem(client, 0x20, state->std); /* watch autodetect */ - v4l_dbg(1, msp_debug, client, "triggered autodetect, waiting for result\n"); + v4l_dbg(1, msp_debug, client, "started autodetect, waiting for result\n"); for (i = 0; i < 10; i++) { if (msp_sleep(state, 100)) goto restart; @@ -920,20 +924,19 @@ int msp34xxg_thread(void *data) /* check results */ val = msp_read_dem(client, 0x7e); if (val < 0x07ff) { - std = val; + state->std = val; break; } v4l_dbg(2, msp_debug, client, "detection still in progress\n"); } - if (std == 1) { + if (state->std == 1) { v4l_dbg(1, msp_debug, client, "detection still in progress after 10 tries. giving up.\n"); continue; } unmute: - state->std = std; - v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n", - msp_standard_std_name(std), std); + v4l_dbg(1, msp_debug, client, "detected standard: %s (0x%04x)\n", + msp_standard_std_name(state->std), state->std); /* unmute: dispatch sound to scart output, set scart volume */ msp_set_audio(client); @@ -942,20 +945,33 @@ int msp34xxg_thread(void *data) if (msp_write_dsp(client, 0x13, state->acb)) return -1; - if (state->has_i2s_conf) - msp_write_dem(client, 0x40, state->i2s_mode); + /* the periodic stereo/SAP check is only relevant for + the 0x20 standard (BTSC) */ + if (state->std != 0x20) + continue; + + state->watch_stereo = 1; + + /* monitor tv audio mode, the first time don't wait + in order to get a quick stereo/SAP update */ + watch_stereo(client); + while (state->watch_stereo) { + watch_stereo(client); + if (msp_sleep(state, 5000)) + goto restart; + } } v4l_dbg(1, msp_debug, client, "thread: exit\n"); return 0; } -static void msp34xxg_detect_stereo(struct i2c_client *client) +static int msp34xxg_detect_stereo(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); - int status = msp_read_dem(client, 0x0200); int is_bilingual = status & 0x100; int is_stereo = status & 0x40; + int oldrx = state->rxsubchans; state->rxsubchans = 0; if (is_stereo) @@ -963,16 +979,14 @@ static void msp34xxg_detect_stereo(struct i2c_client *client) else state->rxsubchans = V4L2_TUNER_SUB_MONO; if (is_bilingual) { - state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; - /* I'm supposed to check whether it's SAP or not - * and set only LANG2/SAP in this case. Yet, the MSP - * does a lot of work to hide this and handle everything - * the same way. I don't want to work around it so unless - * this is a problem, I'll handle SAP just like lang1/lang2. - */ + if (state->std == 0x20) + state->rxsubchans |= V4L2_TUNER_SUB_SAP; + else + state->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; } v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", status, is_stereo, is_bilingual, state->rxsubchans); + return (oldrx != state->rxsubchans); } static void msp34xxg_set_audmode(struct i2c_client *client) @@ -980,6 +994,16 @@ static void msp34xxg_set_audmode(struct i2c_client *client) struct msp_state *state = i2c_get_clientdata(client); int source; + if (state->std == 0x20) { + if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) && + (state->audmode == V4L2_TUNER_MODE_STEREO || + state->audmode == V4L2_TUNER_MODE_LANG2)) { + msp_write_dem(client, 0x20, 0x21); + } else { + msp_write_dem(client, 0x20, 0x20); + } + } + switch (state->audmode) { case V4L2_TUNER_MODE_MONO: source = 0; /* mono only */ @@ -1008,7 +1032,6 @@ void msp_set_audmode(struct i2c_client *client) switch (state->opmode) { case OPMODE_MANUAL: case OPMODE_AUTODETECT: - state->watch_stereo = 0; msp3400c_set_audmode(client); break; case OPMODE_AUTOSELECT: @@ -1017,18 +1040,17 @@ void msp_set_audmode(struct i2c_client *client) } } -void msp_detect_stereo(struct i2c_client *client) +int msp_detect_stereo(struct i2c_client *client) { struct msp_state *state = i2c_get_clientdata(client); switch (state->opmode) { case OPMODE_MANUAL: case OPMODE_AUTODETECT: - msp3400c_detect_stereo(client); - break; + return msp3400c_detect_stereo(client); case OPMODE_AUTOSELECT: - msp34xxg_detect_stereo(client); - break; + return msp34xxg_detect_stereo(client); } + return 0; } |