litmus-rt.git - The LITMUS^RT kernel.

diff options

-rw-r--r--

1 files changed, 15 insertions, 11 deletions

         pressure.
         Default: 8K
-        default: default size of receive buffer used by TCP sockets.
+        default: initial size of receive buffer used by TCP sockets.
         This value overrides net.core.rmem_default used by other protocols.
         Default: 87380 bytes. This value results in window of 65535 with
         default setting of tcp_adv_win_scale and tcp_app_win:0 and a bit
         max: maximal size of receive buffer allowed for automatically
         selected receiver buffers for TCP socket. This value does not override
-        net.core.rmem_max, "static" selection via SO_RCVBUF does not use this.
+        net.core.rmem_max.  Calling setsockopt() with SO_RCVBUF disables
-        Default: 87380*2 bytes.
+        automatic tuning of that socket's receive buffer size, in which
+        case this value is ignored.
+        Default: between 87380B and 4MB, depending on RAM size.
 tcp_sack - BOOLEAN
         Enable select acknowledgments (SACKS).
         Enable window scaling as defined in RFC1323.
 tcp_wmem - vector of 3 INTEGERs: min, default, max
-        min: Amount of memory reserved for send buffers for TCP socket.
+        min: Amount of memory reserved for send buffers for TCP sockets.
         Each TCP socket has rights to use it due to fact of its birth.
         Default: 4K
-        default: Amount of memory allowed for send buffers for TCP socket
+        default: initial size of send buffer used by TCP sockets.  This
-        by default. This value overrides net.core.wmem_default used
+        value overrides net.core.wmem_default used by other protocols.
-        by other protocols, it is usually lower than net.core.wmem_default.
+        It is usually lower than net.core.wmem_default.
         Default: 16K
-        max: Maximal amount of memory allowed for automatically selected
+        max: Maximal amount of memory allowed for automatically tuned
-        send buffers for TCP socket. This value does not override
+        send buffers for TCP sockets. This value does not override
-        net.core.wmem_max, "static" selection via SO_SNDBUF does not use this.
+        net.core.wmem_max.  Calling setsockopt() with SO_SNDBUF disables
-        Default: 128K
+        automatic tuning of that socket's send buffer size, in which case
+        this value is ignored.
+        Default: between 64K and 4MB, depending on RAM size.
 tcp_workaround_signed_windows - BOOLEAN
         If set, assume no receipt of a window scaling option means the

/* * 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/msp3400.h> #include <linux/kthread.h> #include <linux/suspend.h> #include "msp3400-driver.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)" }, { 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" }, { 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, 0x7c00 }, }; 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"; } static void msp_set_source(struct i2c_client *client, u16 src) { struct msp_state *state = i2c_get_clientdata(client); if (msp_dolby) { msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */ msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */ } 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_scart2_out) msp_write_dsp(client, 0x0041, src); } void msp3400c_set_carrier(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_set_mode(struct i2c_client *client, int mode) { struct msp_state *state = i2c_get_clientdata(client); struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode]; int tuner = (state->routing.input >> 3) & 1; int i; v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode); state->mode = mode; state->rxsubchans = V4L2_TUNER_SUB_MONO; msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0)); for (i = 5; i >= 0; i--) /* fir 1 */ msp_write_dem(client, 0x0001, data->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, data->fir2[i]); msp_write_dem(client, 0x0083, data->mode_reg); msp3400c_set_carrier(client, data->cdo1, data->cdo2); msp_set_source(client, data->dsp_src); /* set prescales */ /* 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, nor do they support stereo BTSC. */ static void msp3400c_set_audmode(struct i2c_client *client) { static char *strmode[] = { "mono", "stereo", "lang2", "lang1", "lang1+lang2" }; struct msp_state *state = i2c_get_clientdata(client); char *modestr = (state->audmode >= 0 && state->audmode < 5) ? strmode[state->audmode] : "unknown"; int src = 0; /* channel source: FM/AM, nicam or SCART */ int audmode = state->audmode; if (state->opmode == OPMODE_AUTOSELECT) { /* this method would break everything, let's make sure * it's never called */ v4l_dbg(1, msp_debug, client, "set_audmode called with mode=%d instead of set_source (ignored)\n", state->audmode); return; } /* Note: for the C and D revs no NTSC stereo + SAP is possible as the hardware does not support SAP. So the rxsubchans combination of STEREO | LANG2 does not occur. */ if (state->mode != MSP_MODE_EXTERN) { /* switch to mono if only mono is available */ if (state->rxsubchans == V4L2_TUNER_SUB_MONO) audmode = V4L2_TUNER_MODE_MONO; /* if bilingual */ else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) { /* and mono or stereo, then fallback to lang1 */ if (audmode == V4L2_TUNER_MODE_MONO || audmode == V4L2_TUNER_MODE_STEREO) audmode = V4L2_TUNER_MODE_LANG1; } /* if stereo, and audmode is not mono, then switch to stereo */ else if (audmode != V4L2_TUNER_MODE_MONO) audmode = V4L2_TUNER_MODE_STEREO; } /* switch demodulator */ switch (state->mode) { case MSP_MODE_FM_TERRA: v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr); switch (audmode) { 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: case V4L2_TUNER_MODE_LANG1_LANG2: msp_write_dsp(client, 0x000e, 0x3000); break; } break; case MSP_MODE_FM_SAT: v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr); switch (audmode) { case V4L2_TUNER_MODE_MONO: msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5)); break; case V4L2_TUNER_MODE_STEREO: case V4L2_TUNER_MODE_LANG1_LANG2: msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02)); break; case V4L2_TUNER_MODE_LANG1: msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02)); break; case V4L2_TUNER_MODE_LANG2: msp3400c_set_carrier(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 set_audmode: %s\n",modestr); if (state->nicam_on) src = 0x0100; /* NICAM */ break; case MSP_MODE_BTSC: v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr); break; case MSP_MODE_EXTERN: v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr); src = 0x0200; /* SCART */ break; case MSP_MODE_FM_RADIO: v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr); break; default: v4l_dbg(1, msp_debug, client, "mono set_audmode\n"); return; } /* switch audio */ v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode); switch (audmode) { case V4L2_TUNER_MODE_STEREO: case V4L2_TUNER_MODE_LANG1_LANG2: src |= 0x0020; 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; } if (state->rxsubchans & V4L2_TUNER_SUB_STEREO) src = 0x0030; break; case V4L2_TUNER_MODE_LANG1: break; case V4L2_TUNER_MODE_LANG2: src |= 0x0010; break; } v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src); msp_set_source(client, 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); } } /* ----------------------------------------------------------------------- */ static int msp3400c_detect_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 > 8192) { rxsubchans = V4L2_TUNER_SUB_STEREO; } 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; break; case 2: case 10: rxsubchans = 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; } if (rxsubchans != state->rxsubchans) { update = 1; v4l_dbg(1, msp_debug, client, "watch: rxsubchans %02x => %02x\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 (msp_detect_stereo(client)) { msp_set_audmode(client); } 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(2, 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"); state->scan_in_progress = 0; state->rxsubchans = V4L2_TUNER_SUB_STEREO; msp_set_audio(client); continue; } /* mute audio */ state->scan_in_progress = 1; msp_set_audio(client); msp3400c_set_mode(client, MSP_MODE_AM_DETECT); val1 = val2 = 0; max1 = max2 = -1; state->watch_stereo = 0; state->nicam_on = 0; /* wait for tuner to settle down after a channel change */ 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_set_carrier(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_set_carrier(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_set_mode(client, MSP_MODE_FM_TERRA); state->watch_stereo = 1; } else if (max2 == 1 && state->has_nicam) { /* B/G NICAM */ state->second = msp3400c_carrier_detect_55[max2].cdo; msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); state->nicam_on = 1; state->watch_stereo = 1; } else { goto no_second; } break; case 2: /* 6.0 */ /* PAL I NICAM */ state->second = MSP_CARRIER(6.552); msp3400c_set_mode(client, MSP_MODE_FM_NICAM2); state->nicam_on = 1; 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_set_mode(client, MSP_MODE_FM_TERRA); 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_set_mode(client, MSP_MODE_AM_NICAM); state->watch_stereo = 1; } else if (max2 == 0 && state->has_nicam) { /* D/K NICAM */ state->second = msp3400c_carrier_detect_65[max2].cdo; msp3400c_set_mode(client, MSP_MODE_FM_NICAM1); state->nicam_on = 1; 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_set_mode(client, MSP_MODE_FM_TERRA); break; } msp3400c_set_carrier(client, state->second, state->main); /* unmute */ state->scan_in_progress = 0; msp3400c_set_audmode(client); msp_set_audio(client); if (msp_debug) msp3400c_print_mode(client); /* monitor tv audio mode, the first time don't wait so long to get a quick stereo/bilingual result */ count = 3; while (state->watch_stereo) { if (msp_sleep(state, count ? 1000 : 5000)) goto restart; if (count) count--; 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, count; 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(2, 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"); state->scan_in_progress = 0; msp_set_audio(client); continue; } /* mute audio */ state->scan_in_progress = 1;


context:
space:
mode: