| /* |
| * 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, 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 (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, 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, 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, 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, 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, client, "BTSC setstereo: %s\n",strmode[mode]); |
| nicam=0x0300; |
| break; |
| case MSP_MODE_EXTERN: |
| v4l_dbg(1, client, "extern setstereo: %s\n",strmode[mode]); |
| nicam = 0x0200; |
| break; |
| case MSP_MODE_FM_RADIO: |
| v4l_dbg(1, client, "FM-Radio setstereo: %s\n",strmode[mode]); |
| break; |
| default: |
| v4l_dbg(1, 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, 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, client, "setstereo final source/matrix = 0x%x\n", src); |
| |
| if (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, client, "mono sound carrier: %d.%03d MHz\n", |
| state->main / 910000, (state->main / 910) % 1000); |
| } else { |
| v4l_dbg(1, 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, 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, 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, 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, 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, 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, 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, client, "watch: rxsubchans %d => %d\n", |
| state->rxsubchans,rxsubchans); |
| state->rxsubchans = rxsubchans; |
| } |
| if (newnicam != state->nicam_on) { |
| update = 1; |
| v4l_dbg(1, 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 (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, client, "msp3400 daemon started\n"); |
| for (;;) { |
| v4l_dbg(2, client, "msp3400 thread: sleep\n"); |
| msp_sleep(state, -1); |
| v4l_dbg(2, client, "msp3400 thread: wakeup\n"); |
| |
| restart: |
| v4l_dbg(1, 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, 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 (amsound && (state->v4l2_std & V4L2_STD_SECAM)) { |
| /* autodetect doesn't work well with AM ... */ |
| max1 = 3; |
| count = 0; |
| v4l_dbg(1, 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, 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 (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, 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 (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, 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, client, "msp3410 daemon started\n"); |
| |
| for (;;) { |
| v4l_dbg(2, client, "msp3410 thread: sleep\n"); |
| msp_sleep(state,-1); |
| v4l_dbg(2, client, "msp3410 thread: wakeup\n"); |
| |
| restart: |
| v4l_dbg(1, 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, 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 (debug) |
| v4l_dbg(1, 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, 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, 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 (amsound && !state->radio && (state->v4l2_std & V4L2_STD_SECAM) && |
| (val != 0x0009)) { |
| /* autodetection has failed, let backup */ |
| v4l_dbg(1, 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, 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, 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, stereo_threshold); |
| 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, client, "msp34xxg daemon started\n"); |
| |
| state->source = 1; /* default */ |
| for (;;) { |
| v4l_dbg(2, client, "msp34xxg thread: sleep\n"); |
| msp_sleep(state, -1); |
| v4l_dbg(2, client, "msp34xxg thread: wakeup\n"); |
| |
| restart: |
| v4l_dbg(1, client, "thread: restart scan\n"); |
| state->restart = 0; |
| if (kthread_should_stop()) |
| break; |
| |
| /* setup the chip*/ |
| msp34xxg_reset(client); |
| std = standard; |
| if (std != 0x01) |
| goto unmute; |
| |
| /* watch autodetect */ |
| v4l_dbg(1, 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, client, "detection still in progress\n"); |
| } |
| if (std == 1) { |
| v4l_dbg(1, client, "detection still in progress after 10 tries. giving up.\n"); |
| continue; |
| } |
| |
| unmute: |
| state->std = std; |
| v4l_dbg(1, 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, 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, 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); |
| } |
| |