diff options
Diffstat (limited to 'drivers/media/video/msp3400-kthreads.c')
| -rw-r--r-- | drivers/media/video/msp3400-kthreads.c | 1010 |
1 files changed, 0 insertions, 1010 deletions
diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c deleted file mode 100644 index 2072c3efebb..00000000000 --- a/drivers/media/video/msp3400-kthreads.c +++ /dev/null @@ -1,1010 +0,0 @@ -/* - * Programming the mspx4xx sound processor family - * - * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - */ - - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/i2c.h> -#include <linux/videodev.h> -#include <linux/videodev2.h> -#include <media/v4l2-common.h> -#include <media/audiochip.h> -#include <linux/kthread.h> -#include <linux/suspend.h> -#include "msp3400.h" - -/* this one uses the automatic sound standard detection of newer msp34xx - chip versions */ -static struct { - int retval; - int main, second; - char *name; -} msp_stdlist[] = { - { 0x0000, 0, 0, "could not detect sound standard" }, - { 0x0001, 0, 0, "autodetect start" }, - { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" }, - { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" }, - { 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)" }, - { 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)" }, - { 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" }, - { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" }, - { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" }, - { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" }, - { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" }, - { -1, 0, 0, NULL }, /* EOF */ -}; - -static struct msp3400c_init_data_dem { - int fir1[6]; - int fir2[6]; - int cdo1; - int cdo2; - int ad_cv; - int mode_reg; - int dsp_src; - int dsp_matrix; -} msp3400c_init_data[] = { - { /* AM (for carrier detect / msp3400) */ - {75, 19, 36, 35, 39, 40}, - {75, 19, 36, 35, 39, 40}, - MSP_CARRIER(5.5), MSP_CARRIER(5.5), - 0x00d0, 0x0500, 0x0020, 0x3000 - },{ /* AM (for carrier detect / msp3410) */ - {-1, -1, -8, 2, 59, 126}, - {-1, -1, -8, 2, 59, 126}, - MSP_CARRIER(5.5), MSP_CARRIER(5.5), - 0x00d0, 0x0100, 0x0020, 0x3000 - },{ /* FM Radio */ - {-8, -8, 4, 6, 78, 107}, - {-8, -8, 4, 6, 78, 107}, - MSP_CARRIER(10.7), MSP_CARRIER(10.7), - 0x00d0, 0x0480, 0x0020, 0x3000 - },{ /* Terrestial FM-mono + FM-stereo */ - {3, 18, 27, 48, 66, 72}, - {3, 18, 27, 48, 66, 72}, - MSP_CARRIER(5.5), MSP_CARRIER(5.5), - 0x00d0, 0x0480, 0x0030, 0x3000 - },{ /* Sat FM-mono */ - { 1, 9, 14, 24, 33, 37}, - { 3, 18, 27, 48, 66, 72}, - MSP_CARRIER(6.5), MSP_CARRIER(6.5), - 0x00c6, 0x0480, 0x0000, 0x3000 - },{ /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */ - {-2, -8, -10, 10, 50, 86}, - {3, 18, 27, 48, 66, 72}, - MSP_CARRIER(5.5), MSP_CARRIER(5.5), - 0x00d0, 0x0040, 0x0120, 0x3000 - },{ /* NICAM/FM -- I (6.0/6.552) */ - {2, 4, -6, -4, 40, 94}, - {3, 18, 27, 48, 66, 72}, - MSP_CARRIER(6.0), MSP_CARRIER(6.0), - 0x00d0, 0x0040, 0x0120, 0x3000 - },{ /* NICAM/AM -- L (6.5/5.85) */ - {-2, -8, -10, 10, 50, 86}, - {-4, -12, -9, 23, 79, 126}, - MSP_CARRIER(6.5), MSP_CARRIER(6.5), - 0x00c6, 0x0140, 0x0120, 0x7c03 - }, -}; - -struct msp3400c_carrier_detect { - int cdo; - char *name; -}; - -static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = { - /* main carrier */ - { MSP_CARRIER(4.5), "4.5 NTSC" }, - { MSP_CARRIER(5.5), "5.5 PAL B/G" }, - { MSP_CARRIER(6.0), "6.0 PAL I" }, - { MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" } -}; - -static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = { - /* PAL B/G */ - { MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" }, - { MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" } -}; - -static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = { - /* PAL SAT / SECAM */ - { MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" }, - { MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" }, - { MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" }, - { MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" }, - { MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" }, - { MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" }, -}; - -/* ------------------------------------------------------------------------ */ - -const char *msp_standard_std_name(int std) -{ - int i; - - for (i = 0; msp_stdlist[i].name != NULL; i++) - if (msp_stdlist[i].retval == std) - return msp_stdlist[i].name; - return "unknown"; -} - -void msp3400c_setcarrier(struct i2c_client *client, int cdo1, int cdo2) -{ - msp_write_dem(client, 0x0093, cdo1 & 0xfff); - msp_write_dem(client, 0x009b, cdo1 >> 12); - msp_write_dem(client, 0x00a3, cdo2 & 0xfff); - msp_write_dem(client, 0x00ab, cdo2 >> 12); - msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/ -} - -void msp3400c_setmode(struct i2c_client *client, int type) -{ - struct msp_state *state = i2c_get_clientdata(client); - int i; - - v4l_dbg(1, msp_debug, client, "setmode: %d\n", type); - state->mode = type; - state->audmode = V4L2_TUNER_MODE_MONO; - state->rxsubchans = V4L2_TUNER_SUB_MONO; - - msp_write_dem(client, 0x00bb, msp3400c_init_data[type].ad_cv); - - for (i = 5; i >= 0; i--) /* fir 1 */ - msp_write_dem(client, 0x0001, msp3400c_init_data[type].fir1[i]); - - msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */ - msp_write_dem(client, 0x0005, 0x0040); - msp_write_dem(client, 0x0005, 0x0000); - for (i = 5; i >= 0; i--) - msp_write_dem(client, 0x0005, msp3400c_init_data[type].fir2[i]); - - msp_write_dem(client, 0x0083, msp3400c_init_data[type].mode_reg); - - msp3400c_setcarrier(client, msp3400c_init_data[type].cdo1, - msp3400c_init_data[type].cdo2); - - msp_write_dem(client, 0x0056, 0); /*LOAD_REG_1/2*/ - - if (msp_dolby) { - msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */ - msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */ - msp_write_dsp(client, 0x000b, msp3400c_init_data[type].dsp_src); - } else { - msp_write_dsp(client, 0x0008, msp3400c_init_data[type].dsp_src); - msp_write_dsp(client, 0x0009, msp3400c_init_data[type].dsp_src); - msp_write_dsp(client, 0x000b, msp3400c_init_data[type].dsp_src); - } - msp_write_dsp(client, 0x000a, msp3400c_init_data[type].dsp_src); - msp_write_dsp(client, 0x000e, msp3400c_init_data[type].dsp_matrix); - - if (state->has_nicam) { - /* nicam prescale */ - msp_write_dsp(client, 0x0010, 0x5a00); /* was: 0x3000 */ - } -} - -/* turn on/off nicam + stereo */ -void msp3400c_setstereo(struct i2c_client *client, int mode) -{ - static char *strmode[] = { "mono", "stereo", "lang2", "lang1" }; - struct msp_state *state = i2c_get_clientdata(client); - int nicam = 0; /* channel source: FM/AM or nicam */ - int src = 0; - - if (state->opmode == OPMODE_AUTOSELECT) { - /* this method would break everything, let's make sure - * it's never called - */ - v4l_dbg(1, msp_debug, client, "setstereo called with mode=%d instead of set_source (ignored)\n", - mode); - return; - } - - /* switch demodulator */ - switch (state->mode) { - case MSP_MODE_FM_TERRA: - v4l_dbg(1, msp_debug, client, "FM setstereo: %s\n", strmode[mode]); - msp3400c_setcarrier(client, state->second, state->main); - switch (mode) { - case V4L2_TUNER_MODE_STEREO: - msp_write_dsp(client, 0x000e, 0x3001); - break; - case V4L2_TUNER_MODE_MONO: - case V4L2_TUNER_MODE_LANG1: - case V4L2_TUNER_MODE_LANG2: - msp_write_dsp(client, 0x000e, 0x3000); - break; - } - break; - case MSP_MODE_FM_SAT: - v4l_dbg(1, msp_debug, client, "SAT setstereo: %s\n", strmode[mode]); - switch (mode) { - case V4L2_TUNER_MODE_MONO: - msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); - break; - case V4L2_TUNER_MODE_STEREO: - msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); - break; - case V4L2_TUNER_MODE_LANG1: - msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); - break; - case V4L2_TUNER_MODE_LANG2: - msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); - break; - } - break; - case MSP_MODE_FM_NICAM1: - case MSP_MODE_FM_NICAM2: - case MSP_MODE_AM_NICAM: - v4l_dbg(1, msp_debug, client, "NICAM setstereo: %s\n",strmode[mode]); - msp3400c_setcarrier(client,state->second,state->main); - if (state->nicam_on) - nicam=0x0100; - break; - case MSP_MODE_BTSC: - v4l_dbg(1, msp_debug, client, "BTSC setstereo: %s\n",strmode[mode]); - nicam=0x0300; - break; - case MSP_MODE_EXTERN: - v4l_dbg(1, msp_debug, client, "extern setstereo: %s\n",strmode[mode]); - nicam = 0x0200; - break; - case MSP_MODE_FM_RADIO: - v4l_dbg(1, msp_debug, client, "FM-Radio setstereo: %s\n",strmode[mode]); - break; - default: - v4l_dbg(1, msp_debug, client, "mono setstereo\n"); - return; - } - - /* switch audio */ - switch (mode) { - case V4L2_TUNER_MODE_STEREO: - src = 0x0020 | nicam; - break; - case V4L2_TUNER_MODE_MONO: - if (state->mode == MSP_MODE_AM_NICAM) { - v4l_dbg(1, msp_debug, client, "switching to AM mono\n"); - /* AM mono decoding is handled by tuner, not MSP chip */ - /* SCART switching control register */ - msp_set_scart(client, SCART_MONO, 0); - src = 0x0200; - break; - } - case V4L2_TUNER_MODE_LANG1: - src = 0x0000 | nicam; - break; - case V4L2_TUNER_MODE_LANG2: - src = 0x0010 | nicam; - break; - } - v4l_dbg(1, msp_debug, client, "setstereo final source/matrix = 0x%x\n", src); - - if (msp_dolby) { - msp_write_dsp(client, 0x0008, 0x0520); - msp_write_dsp(client, 0x0009, 0x0620); - msp_write_dsp(client, 0x000a, src); - msp_write_dsp(client, 0x000b, src); - } else { - msp_write_dsp(client, 0x0008, src); - msp_write_dsp(client, 0x0009, src); - msp_write_dsp(client, 0x000a, src); - msp_write_dsp(client, 0x000b, src); - msp_write_dsp(client, 0x000c, src); - if (state->has_scart23_in_scart2_out) - msp_write_dsp(client, 0x0041, src); - } -} - -static void msp3400c_print_mode(struct i2c_client *client) -{ - struct msp_state *state = i2c_get_clientdata(client); - - if (state->main == state->second) { - v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n", - state->main / 910000, (state->main / 910) % 1000); - } else { - v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n", - state->main / 910000, (state->main / 910) % 1000); - } - if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) - v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n", - state->second / 910000, (state->second/910) % 1000); - if (state->mode == MSP_MODE_AM_NICAM) - v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n", - state->second / 910000, (state->second / 910) % 1000); - if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) { - v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n", - state->second / 910000, (state->second / 910) % 1000); - } -} - -/* ----------------------------------------------------------------------- */ - -int autodetect_stereo(struct i2c_client *client) -{ - struct msp_state *state = i2c_get_clientdata(client); - int val; - int rxsubchans = state->rxsubchans; - int newnicam = state->nicam_on; - int update = 0; - - switch (state->mode) { - case MSP_MODE_FM_TERRA: - val = msp_read_dsp(client, 0x18); - if (val > 32767) - val -= 65536; - v4l_dbg(2, msp_debug, client, "stereo detect register: %d\n", val); - if (val > 4096) { - rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_MONO; - } else if (val < -4096) { - rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; - } else { - rxsubchans = V4L2_TUNER_SUB_MONO; - } - newnicam = 0; - break; - case MSP_MODE_FM_NICAM1: - case MSP_MODE_FM_NICAM2: - case MSP_MODE_AM_NICAM: - val = msp_read_dem(client, 0x23); - v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n", - val & 1, (val & 0x1e) >> 1); - - if (val & 1) { - /* nicam synced */ - switch ((val & 0x1e) >> 1) { - case 0: - case 8: - rxsubchans = V4L2_TUNER_SUB_STEREO; - break; - case 1: - case 9: - rxsubchans = V4L2_TUNER_SUB_MONO - | V4L2_TUNER_SUB_LANG1; - break; - case 2: - case 10: - rxsubchans = V4L2_TUNER_SUB_MONO - | V4L2_TUNER_SUB_LANG1 - | V4L2_TUNER_SUB_LANG2; - break; - default: - rxsubchans = V4L2_TUNER_SUB_MONO; - break; - } - newnicam = 1; - } else { - newnicam = 0; - rxsubchans = V4L2_TUNER_SUB_MONO; - } - break; - case MSP_MODE_BTSC: - val = msp_read_dem(client, 0x200); - v4l_dbg(2, msp_debug, client, "status=0x%x (pri=%s, sec=%s, %s%s%s)\n", - val, - (val & 0x0002) ? "no" : "yes", - (val & 0x0004) ? "no" : "yes", - (val & 0x0040) ? "stereo" : "mono", - (val & 0x0080) ? ", nicam 2nd mono" : "", - (val & 0x0100) ? ", bilingual/SAP" : ""); - rxsubchans = V4L2_TUNER_SUB_MONO; - if (val & 0x0040) rxsubchans |= V4L2_TUNER_SUB_STEREO; - if (val & 0x0100) rxsubchans |= V4L2_TUNER_SUB_LANG1; - break; - } - if (rxsubchans != state->rxsubchans) { - update = 1; - v4l_dbg(1, msp_debug, client, "watch: rxsubchans %d => %d\n", - state->rxsubchans,rxsubchans); - state->rxsubchans = rxsubchans; - } - if (newnicam != state->nicam_on) { - update = 1; - v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n", - state->nicam_on,newnicam); - state->nicam_on = newnicam; - } - return update; -} - -/* - * A kernel thread for msp3400 control -- we don't want to block the - * in the ioctl while doing the sound carrier & stereo detect - */ -/* stereo/multilang monitoring */ -static void watch_stereo(struct i2c_client *client) -{ - struct msp_state *state = i2c_get_clientdata(client); - - if (autodetect_stereo(client)) { - if (state->rxsubchans & V4L2_TUNER_SUB_STEREO) - msp3400c_setstereo(client, V4L2_TUNER_MODE_STEREO); - else if (state->rxsubchans & V4L2_TUNER_SUB_LANG1) - msp3400c_setstereo(client, V4L2_TUNER_MODE_LANG1); - else - msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); - } - - if (msp_once) - state->watch_stereo = 0; -} - -int msp3400c_thread(void *data) -{ - struct i2c_client *client = data; - struct msp_state *state = i2c_get_clientdata(client); - struct msp3400c_carrier_detect *cd; - int count, max1,max2,val1,val2, val,this; - - - v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n"); - for (;;) { - v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n"); - msp_sleep(state, -1); - v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n"); - - restart: - v4l_dbg(1, msp_debug, client, "thread: restart scan\n"); - state->restart = 0; - if (kthread_should_stop()) - break; - - if (state->radio || MSP_MODE_EXTERN == state->mode) { - /* no carrier scan, just unmute */ - v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n"); - msp_set_audio(client); - continue; - } - - /* mute */ - msp_set_mute(client); - msp3400c_setmode(client, MSP_MODE_AM_DETECT /* +1 */ ); - val1 = val2 = 0; - max1 = max2 = -1; - state->watch_stereo = 0; - - /* some time for the tuner to sync */ - if (msp_sleep(state,200)) - goto restart; - - /* carrier detect pass #1 -- main carrier */ - cd = msp3400c_carrier_detect_main; - count = ARRAY_SIZE(msp3400c_carrier_detect_main); - - if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { - /* autodetect doesn't work well with AM ... */ - max1 = 3; - count = 0; - v4l_dbg(1, msp_debug, client, "AM sound override\n"); - } - - for (this = 0; this < count; this++) { - msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); - if (msp_sleep(state,100)) - goto restart; - val = msp_read_dsp(client, 0x1b); - if (val > 32767) - val -= 65536; - if (val1 < val) - val1 = val, max1 = this; - v4l_dbg(1, msp_debug, client, "carrier1 val: %5d / %s\n", val,cd[this].name); - } - - /* carrier detect pass #2 -- second (stereo) carrier */ - switch (max1) { - case 1: /* 5.5 */ - cd = msp3400c_carrier_detect_55; - count = ARRAY_SIZE(msp3400c_carrier_detect_55); - break; - case 3: /* 6.5 */ - cd = msp3400c_carrier_detect_65; - count = ARRAY_SIZE(msp3400c_carrier_detect_65); - break; - case 0: /* 4.5 */ - case 2: /* 6.0 */ - default: - cd = NULL; - count = 0; - break; - } - - if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) { - /* autodetect doesn't work well with AM ... */ - cd = NULL; - count = 0; - max2 = 0; - } - for (this = 0; this < count; this++) { - msp3400c_setcarrier(client, cd[this].cdo,cd[this].cdo); - if (msp_sleep(state,100)) - goto restart; - val = msp_read_dsp(client, 0x1b); - if (val > 32767) - val -= 65536; - if (val2 < val) - val2 = val, max2 = this; - v4l_dbg(1, msp_debug, client, "carrier2 val: %5d / %s\n", val,cd[this].name); - } - - /* program the msp3400 according to the results */ - state->main = msp3400c_carrier_detect_main[max1].cdo; - switch (max1) { - case 1: /* 5.5 */ - if (max2 == 0) { - /* B/G FM-stereo */ - state->second = msp3400c_carrier_detect_55[max2].cdo; - msp3400c_setmode(client, MSP_MODE_FM_TERRA); - state->nicam_on = 0; - msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); - state->watch_stereo = 1; - } else if (max2 == 1 && state->has_nicam) { - /* B/G NICAM */ - state->second = msp3400c_carrier_detect_55[max2].cdo; - msp3400c_setmode(client, MSP_MODE_FM_NICAM1); - state->nicam_on = 1; - msp3400c_setcarrier(client, state->second, state->main); - state->watch_stereo = 1; - } else { - goto no_second; - } - break; - case 2: /* 6.0 */ - /* PAL I NICAM */ - state->second = MSP_CARRIER(6.552); - msp3400c_setmode(client, MSP_MODE_FM_NICAM2); - state->nicam_on = 1; - msp3400c_setcarrier(client, state->second, state->main); - state->watch_stereo = 1; - break; - case 3: /* 6.5 */ - if (max2 == 1 || max2 == 2) { - /* D/K FM-stereo */ - state->second = msp3400c_carrier_detect_65[max2].cdo; - msp3400c_setmode(client, MSP_MODE_FM_TERRA); - state->nicam_on = 0; - msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); - state->watch_stereo = 1; - } else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) { - /* L NICAM or AM-mono */ - state->second = msp3400c_carrier_detect_65[max2].cdo; - msp3400c_setmode(client, MSP_MODE_AM_NICAM); - state->nicam_on = 0; - msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); - msp3400c_setcarrier(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 */ - state->second = msp3400c_carrier_detect_65[max2].cdo; - msp3400c_setmode(client, MSP_MODE_FM_NICAM1); - state->nicam_on = 1; - msp3400c_setcarrier(client, state->second, state->main); - state->watch_stereo = 1; - } else { - goto no_second; - } - break; - case 0: /* 4.5 */ - default: - no_second: - state->second = msp3400c_carrier_detect_main[max1].cdo; - msp3400c_setmode(client, MSP_MODE_FM_TERRA); - state->nicam_on = 0; - msp3400c_setcarrier(client, state->second, state->main); - state->rxsubchans = V4L2_TUNER_SUB_MONO; - msp3400c_setstereo(client, V4L2_TUNER_MODE_MONO); - break; - } - - /* unmute */ - msp_set_audio(client); - - if (msp_debug) - msp3400c_print_mode(client); - - /* monitor tv audio mode */ - while (state->watch_stereo) { - if (msp_sleep(state,5000)) - goto restart; - watch_stereo(client); - } - } - v4l_dbg(1, msp_debug, client, "thread: exit\n"); - return 0; -} - - -int msp3410d_thread(void *data) -{ - struct i2c_client *client = data; - struct msp_state *state = i2c_get_clientdata(client); - int val, i, std; - - v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n"); - - for (;;) { - v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n"); - msp_sleep(state,-1); - v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n"); - - restart: - v4l_dbg(1, msp_debug, client, "thread: restart scan\n"); - state->restart = 0; - if (kthread_should_stop()) - break; - - if (state->mode == MSP_MODE_EXTERN) { - /* no carrier scan needed, just unmute */ - v4l_dbg(1, msp_debug, client, "thread: no carrier scan\n"); - msp_set_audio(client); - continue; - } - - /* put into sane state (and mute) */ - msp_reset(client); - - /* some time for the tuner to sync */ - if (msp_sleep(state,200)) - goto restart; - - /* start autodetect */ - if (state->radio) - std = 0x40; - else - std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1; - state->watch_stereo = 0; - - if (msp_debug) - v4l_dbg(1, msp_debug, client, "setting standard: %s (0x%04x)\n", - msp_standard_std_name(std), std); - - if (std != 1) { - /* programmed some specific mode */ - val = std; - } else { - /* triggered autodetect */ - msp_write_dem(client, 0x20, std); - for (;;) { - if (msp_sleep(state, 100)) - goto restart; - - /* check results */ - val = msp_read_dem(client, 0x7e); - if (val < 0x07ff) - break; - v4l_dbg(1, msp_debug, client, "detection still in progress\n"); - } - } - for (i = 0; msp_stdlist[i].name != NULL; i++) - if (msp_stdlist[i].retval == val) - break; - v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n", - msp_standard_std_name(val), val); - state->main = msp_stdlist[i].main; - state->second = msp_stdlist[i].second; - state->std = val; - - if (msp_amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) && - (val != 0x0009)) { - /* autodetection has failed, let backup */ - 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; - 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 - state->mode = MSP_MODE_FM_NICAM2; - /* just turn on stereo */ - state->rxsubchans = V4L2_TUNER_SUB_STEREO; - state->nicam_on = 1; - state->watch_stereo = 1; - msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO); - break; - case 0x0009: - state->mode = MSP_MODE_AM_NICAM; - state->rxsubchans = V4L2_TUNER_SUB_MONO; - state->nicam_on = 1; - msp3400c_setstereo(client,V4L2_TUNER_MODE_MONO); - state->watch_stereo = 1; - break; - case 0x0020: /* BTSC */ - /* just turn on stereo */ - state->mode = MSP_MODE_BTSC; - state->rxsubchans = V4L2_TUNER_SUB_STEREO; - state->nicam_on = 0; - state->watch_stereo = 1; - msp3400c_setstereo(client,V4L2_TUNER_MODE_STEREO); - break; - case 0x0040: /* FM radio */ - state->mode = MSP_MODE_FM_RADIO; - state->rxsubchans = V4L2_TUNER_SUB_STEREO; - state->audmode = V4L2_TUNER_MODE_STEREO; - state->nicam_on = 0; - state->watch_stereo = 0; - /* not needed in theory if we have radio, but - short programming enables carrier mute */ - msp3400c_setmode(client, MSP_MODE_FM_RADIO); - msp3400c_setcarrier(client, MSP_CARRIER(10.7), - MSP_CARRIER(10.7)); - /* scart routing */ - msp_set_scart(client,SCART_IN2,0); - /* msp34xx does radio decoding */ - msp_write_dsp(client, 0x08, 0x0020); - msp_write_dsp(client, 0x09, 0x0020); - msp_write_dsp(client, 0x0b, 0x0020); - break; - case 0x0003: - case 0x0004: - case 0x0005: - state->mode = MSP_MODE_FM_TERRA; - state->rxsubchans = V4L2_TUNER_SUB_MONO; - state->audmode = V4L2_TUNER_MODE_MONO; - state->nicam_on = 0; - state->watch_stereo = 1; - break; - } - - /* unmute, restore misc registers */ - msp_set_audio(client); - msp_write_dsp(client, 0x13, state->acb); - if (state->has_i2s_conf) - msp_write_dem(client, 0x40, state->i2s_mode); - - /* monitor tv audio mode */ - while (state->watch_stereo) { - if (msp_sleep(state,5000)) - goto restart; - watch_stereo(client); - } - } - v4l_dbg(1, msp_debug, client, "thread: exit\n"); - return 0; -} - -/* ----------------------------------------------------------------------- */ - -/* 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_setstereo - */ -static void msp34xxg_set_source(struct i2c_client *client, int source) -{ - struct msp_state *state = i2c_get_clientdata(client); - - /* fix matrix mode to stereo and let the msp choose what - * to output according to 'source', as recommended - * for MONO (source==0) downmixing set bit[7:0] to 0x30 - */ - int value = (source & 0x07) << 8 | (source == 0 ? 0x30 : 0x20); - - v4l_dbg(1, msp_debug, client, "set source to %d (0x%x)\n", source, value); - /* Loudspeaker Output */ - msp_write_dsp(client, 0x08, value); - /* SCART1 DA Output */ - msp_write_dsp(client, 0x0a, value); - /* Quasi-peak detector */ - msp_write_dsp(client, 0x0c, value); - /* - * set identification threshold. Personally, I - * I set it to a higher value that 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 */ - msp_write_dem(client, 0x22, msp_stereo_thresh); - state->source = source; -} - -/* (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) -{ - struct msp_state *state = i2c_get_clientdata(client); - int modus, std; - - if (msp_reset(client)) - return -1; - - /* 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; - - if (state->has_i2s_conf) - msp_write_dem(client, 0x40, state->i2s_mode); - - /* step-by-step initialisation, as described in the manual */ - modus = msp_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; - - /* 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; - - return 0; -} - -int msp34xxg_thread(void *data) -{ - struct i2c_client *client = data; - struct msp_state *state = i2c_get_clientdata(client); - int val, std, i; - - v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n"); - - state->source = 1; /* default */ - for (;;) { - v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n"); - msp_sleep(state, -1); - v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n"); - - restart: - v4l_dbg(1, msp_debug, client, "thread: restart scan\n"); - state->restart = 0; - if (kthread_should_stop()) - break; - - /* setup the chip*/ - msp34xxg_reset(client); - std = msp_standard; - if (std != 0x01) - goto unmute; - - /* watch autodetect */ - v4l_dbg(1, msp_debug, client, "triggered autodetect, waiting for result\n"); - for (i = 0; i < 10; i++) { - if (msp_sleep(state, 100)) - goto restart; - - /* check results */ - val = msp_read_dem(client, 0x7e); - if (val < 0x07ff) { - std = val; - break; - } - v4l_dbg(2, msp_debug, client, "detection still in progress\n"); - } - if (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); - - /* unmute: dispatch sound to scart output, set scart volume */ - msp_set_audio(client); - - /* restore ACB */ - if (msp_write_dsp(client, 0x13, state->acb)) - return -1; - - msp_write_dem(client, 0x40, state->i2s_mode); - } - v4l_dbg(1, msp_debug, client, "thread: exit\n"); - return 0; -} - -void 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; - - state->rxsubchans = 0; - if (is_stereo) - state->rxsubchans |= V4L2_TUNER_SUB_STEREO; - 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. - */ - } - v4l_dbg(1, msp_debug, client, "status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n", - status, is_stereo, is_bilingual, state->rxsubchans); -} - -void msp34xxg_set_audmode(struct i2c_client *client, int audmode) -{ - struct msp_state *state = i2c_get_clientdata(client); - int source; - - switch (audmode) { - case V4L2_TUNER_MODE_MONO: - source = 0; /* mono only */ - break; - case V4L2_TUNER_MODE_STEREO: - source = 1; /* stereo or A|B, see comment in msp34xxg_get_v4l2_stereo() */ - /* problem: that could also mean 2 (scart input) */ - break; - case V4L2_TUNER_MODE_LANG1: - source = 3; /* stereo or A */ - break; - case V4L2_TUNER_MODE_LANG2: - source = 4; /* stereo or B */ - break; - default: - audmode = 0; - source = 1; - break; - } - state->audmode = audmode; - msp34xxg_set_source(client, source); -} - |