--- /dev/null
+/*
+ * 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/i2c.h>
+#include <linux/freezer.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;
+ v4l2_std_id std;
+} msp_stdlist[] = {
+ { 0x0000, 0, 0, "could not detect sound standard", V4L2_STD_ALL },
+ { 0x0001, 0, 0, "autodetect start", V4L2_STD_ALL },
+ { 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72),
+ "4.5/4.72 M Dual FM-Stereo", V4L2_STD_MN },
+ { 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875),
+ "5.5/5.74 B/G Dual FM-Stereo", V4L2_STD_BG },
+ { 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125),
+ "6.5/6.25 D/K1 Dual FM-Stereo", V4L2_STD_DK },
+ { 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875),
+ "6.5/6.74 D/K2 Dual FM-Stereo", V4L2_STD_DK },
+ { 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5),
+ "6.5 D/K FM-Mono (HDEV3)", V4L2_STD_DK },
+ { 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875),
+ "6.5/5.74 D/K3 Dual FM-Stereo", V4L2_STD_DK },
+ { 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85),
+ "5.5/5.85 B/G NICAM FM", V4L2_STD_BG },
+ { 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
+ "6.5/5.85 L NICAM AM", V4L2_STD_L },
+ { 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55),
+ "6.0/6.55 I NICAM FM", V4L2_STD_PAL_I },
+ { 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
+ "6.5/5.85 D/K NICAM FM", V4L2_STD_DK },
+ { 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
+ "6.5/5.85 D/K NICAM FM (HDEV2)", V4L2_STD_DK },
+ { 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
+ "6.5/5.85 D/K NICAM FM (HDEV3)", V4L2_STD_DK },
+ { 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
+ "4.5 M BTSC-Stereo", V4L2_STD_MTS },
+ { 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
+ "4.5 M BTSC-Mono + SAP", V4L2_STD_MTS },
+ { 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
+ "4.5 M EIA-J Japan Stereo", V4L2_STD_NTSC_M_JP },
+ { 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7),
+ "10.7 FM-Stereo Radio", V4L2_STD_ALL },
+ { 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5),
+ "6.5 SAT-Mono", V4L2_STD_ALL },
+ { 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20),
+ "7.02/7.20 SAT-Stereo", V4L2_STD_ALL },
+ { 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2),
+ "7.2 SAT ADR", V4L2_STD_ALL },
+ { -1, 0, 0, NULL, 0 }, /* 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
+ }, { /* Terrestrial 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 v4l2_std_id msp_standard_std(int std)
+{
+ int i;
+
+ for (i = 0; msp_stdlist[i].name != NULL; i++)
+ if (msp_stdlist[i].retval == std)
+ return msp_stdlist[i].std;
+ return V4L2_STD_ALL;
+}
+
+static void msp_set_source(struct i2c_client *client, u16 src)
+{
+ struct msp_state *state = to_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 = to_state(i2c_get_clientdata(client));
+ struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
+ int tuner = (state->route_in >> 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 = to_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 = to_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 = to_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 = to_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 = to_state(i2c_get_clientdata(client));
+ struct msp3400c_carrier_detect *cd;
+ int count, max1, max2, val1, val2, val, i;
+
+ v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
+ state->detected_std = V4L2_STD_ALL;
+ set_freezable();
+ 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;
+ msp_update_volume(state);
+ continue;
+ }
+
+ /* mute audio */
+ state->scan_in_progress = 1;
+ msp_update_volume(state);
+
+ 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 (i = 0; i < count; i++) {
+ msp3400c_set_carrier(client, cd[i].cdo, cd[i].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 = i;
+ v4l_dbg(1, msp_debug, client,
+ "carrier1 val: %5d / %s\n", val, cd[i].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 (i = 0; i < count; i++) {
+ msp3400c_set_carrier(client, cd[i].cdo, cd[i].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 = i;
+ v4l_dbg(1, msp_debug, client,
+ "carrier2 val: %5d / %s\n", val, cd[i].name);
+ }
+
+ /* program the msp3400 according to the results */
+ state->main = msp3400c_carrier_detect_main[max1].cdo;
+ switch (max1) {
+ case 1: /* 5.5 */
+ state->detected_std = V4L2_STD_BG | V4L2_STD_PAL_H;
+ 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->detected_std = V4L2_STD_PAL_I;
+ 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;
+ state->detected_std = V4L2_STD_DK;
+ } 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;
+ state->detected_std = V4L2_STD_L;
+ } 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;
+ state->detected_std = V4L2_STD_DK;
+ } else {
+ goto no_second;
+ }
+ break;
+ case 0: /* 4.5 */
+ state->detected_std = V4L2_STD_MN;
+ 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_update_volume(state);
+
+ 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 = to_state(i2c_get_clientdata(client));
+ int val, i, std, count;
+
+ v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
+ state->detected_std = V4L2_STD_ALL;
+ set_freezable();
+ 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_update_volume(state);
+ continue;
+ }
+
+ /* mute audio */
+ state->scan_in_progress = 1;
+ msp_update_volume(state);
+
+ /* 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
+ std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 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;
+
+ if (msp_debug)
+ v4l_dbg(2, 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(2, 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;
+ state->rxsubchans = V4L2_TUNER_SUB_MONO;
+
+ 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);
+ state->std = val = 0x0009;
+ msp_write_dem(client, 0x20, val);
+ } else {
+ state->detected_std = msp_standard_std(state->std);
+ }
+
+ /* set stereo */
+ switch (val) {
+ case 0x0008: /* B/G NICAM */
+ case 0x000a: /* I NICAM */
+ 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->nicam_on = 1;
+ state->watch_stereo = 1;
+ break;
+ case 0x0009:
+ state->mode = MSP_MODE_AM_NICAM;
+ state->nicam_on = 1;
+ state->watch_stereo = 1;
+ break;
+ case 0x0020: /* BTSC */
+ /* The pre-'G' models only have BTSC-mono */
+ state->mode = MSP_MODE_BTSC;
+ break;
+ case 0x0040: /* FM radio */
+ state->mode = MSP_MODE_FM_RADIO;
+ state->rxsubchans = V4L2_TUNER_SUB_STEREO;
+ /* not needed in theory if we have radio, but
+ short programming enables carrier mute */
+ msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
+ msp3400c_set_carrier(client, MSP_CARRIER(10.7),
+ MSP_CARRIER(10.7));
+ break;
+ case 0x0002:
+ case 0x0003:
+ case 0x0004:
+ case 0x0005:
+ state->mode = MSP_MODE_FM_TERRA;
+ state->watch_stereo = 1;
+ break;
+ }
+
+ /* 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 */
+ msp3400c_set_audmode(client);
+ state->scan_in_progress = 0;
+ msp_update_volume(state);
+
+ /* 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;
+}
+
+/* ----------------------------------------------------------------------- */
+
+/* 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
+ */
+
+static int msp34xxg_modus(struct i2c_client *client)
+{
+ struct msp_state *state = to_state(i2c_get_clientdata(client));
+
+ if (state->radio) {
+ v4l_dbg(1, msp_debug, client, "selected radio modus\n");
+ return 0x0001;
+ }
+ if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
+ v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
+ return 0x4001;
+ }
+ if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
+ v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
+ return 0x0001;
+ }
+ if (state->v4l2_std == V4L2_STD_SECAM_L) {
+ v4l_dbg(1, msp_debug, client, "selected SECAM-L modus\n");
+ return 0x6001;
+ }
+ if (state->v4l2_std & V4L2_STD_MN) {
+ v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
+ return 0x2001;
+ }
+ return 0x7001;
+}
+
+static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
+ {
+ struct msp_state *state = to_state(i2c_get_clientdata(client));
+ int source, matrix;
+
+ switch (state->audmode) {
+ case V4L2_TUNER_MODE_MONO:
+ source = 0; /* mono only */
+ matrix = 0x30;
+ break;
+ case V4L2_TUNER_MODE_LANG2:
+ source = 4; /* stereo or B */
+ matrix = 0x10;
+ break;
+ case V4L2_TUNER_MODE_LANG1_LANG2:
+ source = 1; /* stereo or A|B */
+ matrix = 0x20;
+ break;
+ case V4L2_TUNER_MODE_LANG1:
+ source = 3; /* stereo or A */
+ matrix = 0x00;
+ break;
+ case V4L2_TUNER_MODE_STEREO:
+ default:
+ source = 3; /* stereo or A */
+ matrix = 0x20;
+ break;
+ }
+
+ if (in == MSP_DSP_IN_TUNER)
+ source = (source << 8) | 0x20;
+ /* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
+ instead of 11, 12, 13. So we add one for that msp version. */
+ else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic)
+ source = ((in + 1) << 8) | matrix;
+ else
+ source = (in << 8) | matrix;
+
+ v4l_dbg(1, msp_debug, client,
+ "set source to %d (0x%x) for output %02x\n", in, source, reg);
+ msp_write_dsp(client, reg, source);
+}
+
+static void msp34xxg_set_sources(struct i2c_client *client)
+{
+ struct msp_state *state = to_state(i2c_get_clientdata(client));
+ u32 in = state->route_in;
+
+ msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
+ /* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
+ msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
+ msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
+ msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
+ if (state->has_scart2_out)
+ msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
+ msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
+}
+
+/* (re-)initialize the msp34xxg */
+static void msp34xxg_reset(struct i2c_client *client)
+{
+ struct msp_state *state = to_state(i2c_get_clientdata(client));
+ int tuner = (state->route_in >> 3) & 1;
+ int modus;
+
+ /* initialize std to 1 (autodetect) to signal that no standard is
+ selected yet. */
+ state->std = 1;
+
+ msp_reset(client);
+
+ 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);
+ modus |= tuner ? 0x100 : 0;
+ msp_write_dem(client, 0x30, modus);
+
+ /* write the dsps that may have an influence on
+ standard/audio autodetection right now */
+ msp34xxg_set_sources(client);
+
+ 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 */
+
+ /* 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 = to_state(i2c_get_clientdata(client));
+ int val, i;
+
+ v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
+ state->detected_std = V4L2_STD_ALL;
+ set_freezable();
+ 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;
+
+ 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_update_volume(state);
+ continue;
+ }
+
+ /* setup the chip*/
+ msp34xxg_reset(client);
+ state->std = state->radio ? 0x40 :
+ (state->force_btsc && msp_standard == 1) ? 32 : msp_standard;
+ msp_write_dem(client, 0x20, state->std);
+ /* start autodetect */
+ if (state->std != 1)
+ goto unmute;
+
+ /* watch autodetect */
+ 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;
+
+ /* check results */
+ val = msp_read_dem(client, 0x7e);
+ if (val < 0x07ff) {
+ state->std = val;
+ break;
+ }
+ v4l_dbg(2, msp_debug, client,
+ "detection still in progress\n");
+ }
+ if (state->std == 1) {
+ v4l_dbg(1, msp_debug, client,
+ "detection still in progress after 10 tries. giving up.\n");
+ continue;
+ }
+
+unmute:
+ v4l_dbg(1, msp_debug, client,
+ "detected standard: %s (0x%04x)\n",
+ msp_standard_std_name(state->std), state->std);
+ state->detected_std = msp_standard_std(state->std);
+
+ if (state->std == 9) {
+ /* AM NICAM mode */
+ msp_write_dsp(client, 0x0e, 0x7c00);
+ }
+
+ /* unmute: dispatch sound to scart output, set scart volume */
+ msp_update_volume(state);
+
+ /* restore ACB */
+ if (msp_write_dsp(client, 0x13, state->acb))
+ return -1;
+
+ /* 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 int msp34xxg_detect_stereo(struct i2c_client *client)
+{
+ struct msp_state *state = to_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;
+
+ if (state->mode == MSP_MODE_EXTERN)
+ return 0;
+
+ state->rxsubchans = 0;
+ if (is_stereo)
+ state->rxsubchans = V4L2_TUNER_SUB_STEREO;
+ else
+ state->rxsubchans = V4L2_TUNER_SUB_MONO;
+ if (is_bilingual) {
+ 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)
+{
+ struct msp_state *state = to_state(i2c_get_clientdata(client));
+
+ if (state->std == 0x20) {
+ if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
+ (state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 ||
+ state->audmode == V4L2_TUNER_MODE_LANG2)) {
+ msp_write_dem(client, 0x20, 0x21);
+ } else {
+ msp_write_dem(client, 0x20, 0x20);
+ }
+ }
+
+ msp34xxg_set_sources(client);
+}
+
+void msp_set_audmode(struct i2c_client *client)
+{
+ struct msp_state *state = to_state(i2c_get_clientdata(client));
+
+ switch (state->opmode) {
+ case OPMODE_MANUAL:
+ case OPMODE_AUTODETECT:
+ msp3400c_set_audmode(client);
+ break;
+ case OPMODE_AUTOSELECT:
+ msp34xxg_set_audmode(client);
+ break;
+ }
+}
+
+int msp_detect_stereo(struct i2c_client *client)
+{
+ struct msp_state *state = to_state(i2c_get_clientdata(client));
+
+ switch (state->opmode) {
+ case OPMODE_MANUAL:
+ case OPMODE_AUTODETECT:
+ return msp3400c_detect_stereo(client);
+ case OPMODE_AUTOSELECT:
+ return msp34xxg_detect_stereo(client);
+ }
+ return 0;
+}
+
Code Review / kvmfornfv.git / blobdiff