2
* Programming the mspx4xx sound processor family
4
* (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/freezer.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/msp3400.h>
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#include <linux/kthread.h>
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#include <linux/suspend.h>
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#include "msp3400-driver.h"
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/* this one uses the automatic sound standard detection of newer msp34xx
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{ 0x0000, 0, 0, "could not detect sound standard", V4L2_STD_ALL },
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{ 0x0001, 0, 0, "autodetect start", V4L2_STD_ALL },
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{ 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72),
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"4.5/4.72 M Dual FM-Stereo", V4L2_STD_MN },
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{ 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875),
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"5.5/5.74 B/G Dual FM-Stereo", V4L2_STD_BG },
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{ 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125),
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"6.5/6.25 D/K1 Dual FM-Stereo", V4L2_STD_DK },
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{ 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875),
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"6.5/6.74 D/K2 Dual FM-Stereo", V4L2_STD_DK },
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{ 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5),
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"6.5 D/K FM-Mono (HDEV3)", V4L2_STD_DK },
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{ 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875),
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"6.5/5.74 D/K3 Dual FM-Stereo", V4L2_STD_DK },
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{ 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85),
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"5.5/5.85 B/G NICAM FM", V4L2_STD_BG },
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{ 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
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"6.5/5.85 L NICAM AM", V4L2_STD_L },
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{ 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55),
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"6.0/6.55 I NICAM FM", V4L2_STD_PAL_I },
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{ 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
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"6.5/5.85 D/K NICAM FM", V4L2_STD_DK },
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{ 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
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"6.5/5.85 D/K NICAM FM (HDEV2)", V4L2_STD_DK },
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{ 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85),
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"6.5/5.85 D/K NICAM FM (HDEV3)", V4L2_STD_DK },
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{ 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
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"4.5 M BTSC-Stereo", V4L2_STD_MTS },
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{ 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
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"4.5 M BTSC-Mono + SAP", V4L2_STD_MTS },
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{ 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5),
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"4.5 M EIA-J Japan Stereo", V4L2_STD_NTSC_M_JP },
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{ 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7),
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"10.7 FM-Stereo Radio", V4L2_STD_ALL },
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{ 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5),
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"6.5 SAT-Mono", V4L2_STD_ALL },
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{ 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20),
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"7.02/7.20 SAT-Stereo", V4L2_STD_ALL },
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{ 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2),
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"7.2 SAT ADR", V4L2_STD_ALL },
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{ -1, 0, 0, NULL, 0 }, /* EOF */
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static struct msp3400c_init_data_dem {
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} msp3400c_init_data[] = {
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{ /* AM (for carrier detect / msp3400) */
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{75, 19, 36, 35, 39, 40},
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{75, 19, 36, 35, 39, 40},
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MSP_CARRIER(5.5), MSP_CARRIER(5.5),
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0x00d0, 0x0500, 0x0020, 0x3000
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}, { /* AM (for carrier detect / msp3410) */
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{-1, -1, -8, 2, 59, 126},
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{-1, -1, -8, 2, 59, 126},
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MSP_CARRIER(5.5), MSP_CARRIER(5.5),
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0x00d0, 0x0100, 0x0020, 0x3000
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{-8, -8, 4, 6, 78, 107},
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{-8, -8, 4, 6, 78, 107},
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MSP_CARRIER(10.7), MSP_CARRIER(10.7),
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0x00d0, 0x0480, 0x0020, 0x3000
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}, { /* Terrestrial FM-mono + FM-stereo */
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{3, 18, 27, 48, 66, 72},
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{3, 18, 27, 48, 66, 72},
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MSP_CARRIER(5.5), MSP_CARRIER(5.5),
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0x00d0, 0x0480, 0x0030, 0x3000
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}, { /* Sat FM-mono */
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{ 1, 9, 14, 24, 33, 37},
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{ 3, 18, 27, 48, 66, 72},
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MSP_CARRIER(6.5), MSP_CARRIER(6.5),
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0x00c6, 0x0480, 0x0000, 0x3000
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}, { /* NICAM/FM -- B/G (5.5/5.85), D/K (6.5/5.85) */
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{-2, -8, -10, 10, 50, 86},
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{3, 18, 27, 48, 66, 72},
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MSP_CARRIER(5.5), MSP_CARRIER(5.5),
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0x00d0, 0x0040, 0x0120, 0x3000
125
}, { /* NICAM/FM -- I (6.0/6.552) */
126
{2, 4, -6, -4, 40, 94},
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{3, 18, 27, 48, 66, 72},
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MSP_CARRIER(6.0), MSP_CARRIER(6.0),
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0x00d0, 0x0040, 0x0120, 0x3000
130
}, { /* NICAM/AM -- L (6.5/5.85) */
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{-2, -8, -10, 10, 50, 86},
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{-4, -12, -9, 23, 79, 126},
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MSP_CARRIER(6.5), MSP_CARRIER(6.5),
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0x00c6, 0x0140, 0x0120, 0x7c00
138
struct msp3400c_carrier_detect {
143
static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
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{ MSP_CARRIER(4.5), "4.5 NTSC" },
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{ MSP_CARRIER(5.5), "5.5 PAL B/G" },
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{ MSP_CARRIER(6.0), "6.0 PAL I" },
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{ MSP_CARRIER(6.5), "6.5 PAL D/K + SAT + SECAM" }
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static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
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{ MSP_CARRIER(5.7421875), "5.742 PAL B/G FM-stereo" },
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{ MSP_CARRIER(5.85), "5.85 PAL B/G NICAM" }
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static struct msp3400c_carrier_detect msp3400c_carrier_detect_65[] = {
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/* PAL SAT / SECAM */
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{ MSP_CARRIER(5.85), "5.85 PAL D/K + SECAM NICAM" },
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{ MSP_CARRIER(6.2578125), "6.25 PAL D/K1 FM-stereo" },
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{ MSP_CARRIER(6.7421875), "6.74 PAL D/K2 FM-stereo" },
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{ MSP_CARRIER(7.02), "7.02 PAL SAT FM-stereo s/b" },
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{ MSP_CARRIER(7.20), "7.20 PAL SAT FM-stereo s" },
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{ MSP_CARRIER(7.38), "7.38 PAL SAT FM-stereo b" },
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/* ------------------------------------------------------------------------ */
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const char *msp_standard_std_name(int std)
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for (i = 0; msp_stdlist[i].name != NULL; i++)
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if (msp_stdlist[i].retval == std)
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return msp_stdlist[i].name;
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static v4l2_std_id msp_standard_std(int std)
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for (i = 0; msp_stdlist[i].name != NULL; i++)
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if (msp_stdlist[i].retval == std)
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return msp_stdlist[i].std;
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static void msp_set_source(struct i2c_client *client, u16 src)
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struct msp_state *state = to_state(i2c_get_clientdata(client));
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msp_write_dsp(client, 0x0008, 0x0520); /* I2S1 */
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msp_write_dsp(client, 0x0009, 0x0620); /* I2S2 */
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msp_write_dsp(client, 0x0008, src);
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msp_write_dsp(client, 0x0009, src);
200
msp_write_dsp(client, 0x000a, src);
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msp_write_dsp(client, 0x000b, src);
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msp_write_dsp(client, 0x000c, src);
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if (state->has_scart2_out)
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msp_write_dsp(client, 0x0041, src);
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void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
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msp_write_dem(client, 0x0093, cdo1 & 0xfff);
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msp_write_dem(client, 0x009b, cdo1 >> 12);
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msp_write_dem(client, 0x00a3, cdo2 & 0xfff);
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msp_write_dem(client, 0x00ab, cdo2 >> 12);
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msp_write_dem(client, 0x0056, 0); /* LOAD_REG_1/2 */
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void msp3400c_set_mode(struct i2c_client *client, int mode)
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struct msp_state *state = to_state(i2c_get_clientdata(client));
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struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
220
int tuner = (state->route_in >> 3) & 1;
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v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
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state->rxsubchans = V4L2_TUNER_SUB_MONO;
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msp_write_dem(client, 0x00bb, data->ad_cv | (tuner ? 0x100 : 0));
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for (i = 5; i >= 0; i--) /* fir 1 */
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msp_write_dem(client, 0x0001, data->fir1[i]);
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msp_write_dem(client, 0x0005, 0x0004); /* fir 2 */
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msp_write_dem(client, 0x0005, 0x0040);
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msp_write_dem(client, 0x0005, 0x0000);
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for (i = 5; i >= 0; i--)
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msp_write_dem(client, 0x0005, data->fir2[i]);
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msp_write_dem(client, 0x0083, data->mode_reg);
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msp3400c_set_carrier(client, data->cdo1, data->cdo2);
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msp_set_source(client, data->dsp_src);
245
/* volume prescale for SCART (AM mono input) */
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msp_write_dsp(client, 0x000d, 0x1900);
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msp_write_dsp(client, 0x000e, data->dsp_matrix);
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if (state->has_nicam) /* nicam prescale */
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msp_write_dsp(client, 0x0010, 0x5a00);
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/* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
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nor do they support stereo BTSC. */
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static void msp3400c_set_audmode(struct i2c_client *client)
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static char *strmode[] = {
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"mono", "stereo", "lang2", "lang1", "lang1+lang2"
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struct msp_state *state = to_state(i2c_get_clientdata(client));
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char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
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strmode[state->audmode] : "unknown";
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int src = 0; /* channel source: FM/AM, nicam or SCART */
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int audmode = state->audmode;
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if (state->opmode == OPMODE_AUTOSELECT) {
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/* this method would break everything, let's make sure
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v4l_dbg(1, msp_debug, client,
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"set_audmode called with mode=%d instead of set_source (ignored)\n",
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/* Note: for the C and D revs no NTSC stereo + SAP is possible as
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the hardware does not support SAP. So the rxsubchans combination
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of STEREO | LANG2 does not occur. */
279
if (state->mode != MSP_MODE_EXTERN) {
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/* switch to mono if only mono is available */
281
if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
282
audmode = V4L2_TUNER_MODE_MONO;
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else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
285
/* and mono or stereo, then fallback to lang1 */
286
if (audmode == V4L2_TUNER_MODE_MONO ||
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audmode == V4L2_TUNER_MODE_STEREO)
288
audmode = V4L2_TUNER_MODE_LANG1;
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/* if stereo, and audmode is not mono, then switch to stereo */
291
else if (audmode != V4L2_TUNER_MODE_MONO)
292
audmode = V4L2_TUNER_MODE_STEREO;
295
/* switch demodulator */
296
switch (state->mode) {
297
case MSP_MODE_FM_TERRA:
298
v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
300
case V4L2_TUNER_MODE_STEREO:
301
msp_write_dsp(client, 0x000e, 0x3001);
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case V4L2_TUNER_MODE_MONO:
304
case V4L2_TUNER_MODE_LANG1:
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case V4L2_TUNER_MODE_LANG2:
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case V4L2_TUNER_MODE_LANG1_LANG2:
307
msp_write_dsp(client, 0x000e, 0x3000);
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case MSP_MODE_FM_SAT:
312
v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
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case V4L2_TUNER_MODE_MONO:
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msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
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case V4L2_TUNER_MODE_STEREO:
318
case V4L2_TUNER_MODE_LANG1_LANG2:
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msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
321
case V4L2_TUNER_MODE_LANG1:
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msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
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case V4L2_TUNER_MODE_LANG2:
325
msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
329
case MSP_MODE_FM_NICAM1:
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case MSP_MODE_FM_NICAM2:
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case MSP_MODE_AM_NICAM:
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v4l_dbg(1, msp_debug, client,
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"NICAM set_audmode: %s\n", modestr);
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src = 0x0100; /* NICAM */
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v4l_dbg(1, msp_debug, client,
339
"BTSC set_audmode: %s\n", modestr);
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case MSP_MODE_EXTERN:
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v4l_dbg(1, msp_debug, client,
343
"extern set_audmode: %s\n", modestr);
344
src = 0x0200; /* SCART */
346
case MSP_MODE_FM_RADIO:
347
v4l_dbg(1, msp_debug, client,
348
"FM-Radio set_audmode: %s\n", modestr);
351
v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
356
v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode);
358
case V4L2_TUNER_MODE_STEREO:
359
case V4L2_TUNER_MODE_LANG1_LANG2:
362
case V4L2_TUNER_MODE_MONO:
363
if (state->mode == MSP_MODE_AM_NICAM) {
364
v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
365
/* AM mono decoding is handled by tuner, not MSP chip */
366
/* SCART switching control register */
367
msp_set_scart(client, SCART_MONO, 0);
371
if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
374
case V4L2_TUNER_MODE_LANG1:
376
case V4L2_TUNER_MODE_LANG2:
380
v4l_dbg(1, msp_debug, client,
381
"set_audmode final source/matrix = 0x%x\n", src);
383
msp_set_source(client, src);
386
static void msp3400c_print_mode(struct i2c_client *client)
388
struct msp_state *state = to_state(i2c_get_clientdata(client));
390
if (state->main == state->second)
391
v4l_dbg(1, msp_debug, client,
392
"mono sound carrier: %d.%03d MHz\n",
393
state->main / 910000, (state->main / 910) % 1000);
395
v4l_dbg(1, msp_debug, client,
396
"main sound carrier: %d.%03d MHz\n",
397
state->main / 910000, (state->main / 910) % 1000);
398
if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
399
v4l_dbg(1, msp_debug, client,
400
"NICAM/FM carrier : %d.%03d MHz\n",
401
state->second / 910000, (state->second/910) % 1000);
402
if (state->mode == MSP_MODE_AM_NICAM)
403
v4l_dbg(1, msp_debug, client,
404
"NICAM/AM carrier : %d.%03d MHz\n",
405
state->second / 910000, (state->second / 910) % 1000);
406
if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
407
v4l_dbg(1, msp_debug, client,
408
"FM-stereo carrier : %d.%03d MHz\n",
409
state->second / 910000, (state->second / 910) % 1000);
413
/* ----------------------------------------------------------------------- */
415
static int msp3400c_detect_stereo(struct i2c_client *client)
417
struct msp_state *state = to_state(i2c_get_clientdata(client));
419
int rxsubchans = state->rxsubchans;
420
int newnicam = state->nicam_on;
423
switch (state->mode) {
424
case MSP_MODE_FM_TERRA:
425
val = msp_read_dsp(client, 0x18);
428
v4l_dbg(2, msp_debug, client,
429
"stereo detect register: %d\n", val);
431
rxsubchans = V4L2_TUNER_SUB_STEREO;
432
} else if (val < -4096) {
433
rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
435
rxsubchans = V4L2_TUNER_SUB_MONO;
439
case MSP_MODE_FM_NICAM1:
440
case MSP_MODE_FM_NICAM2:
441
case MSP_MODE_AM_NICAM:
442
val = msp_read_dem(client, 0x23);
443
v4l_dbg(2, msp_debug, client, "nicam sync=%d, mode=%d\n",
444
val & 1, (val & 0x1e) >> 1);
448
switch ((val & 0x1e) >> 1) {
451
rxsubchans = V4L2_TUNER_SUB_STEREO;
455
rxsubchans = V4L2_TUNER_SUB_MONO;
459
rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
462
rxsubchans = V4L2_TUNER_SUB_MONO;
468
rxsubchans = V4L2_TUNER_SUB_MONO;
472
if (rxsubchans != state->rxsubchans) {
474
v4l_dbg(1, msp_debug, client,
475
"watch: rxsubchans %02x => %02x\n",
476
state->rxsubchans, rxsubchans);
477
state->rxsubchans = rxsubchans;
479
if (newnicam != state->nicam_on) {
481
v4l_dbg(1, msp_debug, client, "watch: nicam %d => %d\n",
482
state->nicam_on, newnicam);
483
state->nicam_on = newnicam;
489
* A kernel thread for msp3400 control -- we don't want to block the
490
* in the ioctl while doing the sound carrier & stereo detect
492
/* stereo/multilang monitoring */
493
static void watch_stereo(struct i2c_client *client)
495
struct msp_state *state = to_state(i2c_get_clientdata(client));
497
if (msp_detect_stereo(client))
498
msp_set_audmode(client);
501
state->watch_stereo = 0;
504
int msp3400c_thread(void *data)
506
struct i2c_client *client = data;
507
struct msp_state *state = to_state(i2c_get_clientdata(client));
508
struct msp3400c_carrier_detect *cd;
509
int count, max1, max2, val1, val2, val, i;
511
v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
512
state->detected_std = V4L2_STD_ALL;
515
v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
516
msp_sleep(state, -1);
517
v4l_dbg(2, msp_debug, client, "msp3400 thread: wakeup\n");
520
v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
522
if (kthread_should_stop())
525
if (state->radio || MSP_MODE_EXTERN == state->mode) {
526
/* no carrier scan, just unmute */
527
v4l_dbg(1, msp_debug, client,
528
"thread: no carrier scan\n");
529
state->scan_in_progress = 0;
530
msp_update_volume(state);
535
state->scan_in_progress = 1;
536
msp_update_volume(state);
538
msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
541
state->watch_stereo = 0;
544
/* wait for tuner to settle down after a channel change */
545
if (msp_sleep(state, 200))
548
/* carrier detect pass #1 -- main carrier */
549
cd = msp3400c_carrier_detect_main;
550
count = ARRAY_SIZE(msp3400c_carrier_detect_main);
552
if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
553
/* autodetect doesn't work well with AM ... */
556
v4l_dbg(1, msp_debug, client, "AM sound override\n");
559
for (i = 0; i < count; i++) {
560
msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
561
if (msp_sleep(state, 100))
563
val = msp_read_dsp(client, 0x1b);
567
val1 = val, max1 = i;
568
v4l_dbg(1, msp_debug, client,
569
"carrier1 val: %5d / %s\n", val, cd[i].name);
572
/* carrier detect pass #2 -- second (stereo) carrier */
575
cd = msp3400c_carrier_detect_55;
576
count = ARRAY_SIZE(msp3400c_carrier_detect_55);
579
cd = msp3400c_carrier_detect_65;
580
count = ARRAY_SIZE(msp3400c_carrier_detect_65);
590
if (msp_amsound && (state->v4l2_std & V4L2_STD_SECAM)) {
591
/* autodetect doesn't work well with AM ... */
596
for (i = 0; i < count; i++) {
597
msp3400c_set_carrier(client, cd[i].cdo, cd[i].cdo);
598
if (msp_sleep(state, 100))
600
val = msp_read_dsp(client, 0x1b);
604
val2 = val, max2 = i;
605
v4l_dbg(1, msp_debug, client,
606
"carrier2 val: %5d / %s\n", val, cd[i].name);
609
/* program the msp3400 according to the results */
610
state->main = msp3400c_carrier_detect_main[max1].cdo;
613
state->detected_std = V4L2_STD_BG | V4L2_STD_PAL_H;
616
state->second = msp3400c_carrier_detect_55[max2].cdo;
617
msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
618
state->watch_stereo = 1;
619
} else if (max2 == 1 && state->has_nicam) {
621
state->second = msp3400c_carrier_detect_55[max2].cdo;
622
msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
624
state->watch_stereo = 1;
631
state->detected_std = V4L2_STD_PAL_I;
632
state->second = MSP_CARRIER(6.552);
633
msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
635
state->watch_stereo = 1;
638
if (max2 == 1 || max2 == 2) {
640
state->second = msp3400c_carrier_detect_65[max2].cdo;
641
msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
642
state->watch_stereo = 1;
643
state->detected_std = V4L2_STD_DK;
644
} else if (max2 == 0 && (state->v4l2_std & V4L2_STD_SECAM)) {
645
/* L NICAM or AM-mono */
646
state->second = msp3400c_carrier_detect_65[max2].cdo;
647
msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
648
state->watch_stereo = 1;
649
state->detected_std = V4L2_STD_L;
650
} else if (max2 == 0 && state->has_nicam) {
652
state->second = msp3400c_carrier_detect_65[max2].cdo;
653
msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
655
state->watch_stereo = 1;
656
state->detected_std = V4L2_STD_DK;
662
state->detected_std = V4L2_STD_MN;
665
state->second = msp3400c_carrier_detect_main[max1].cdo;
666
msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
669
msp3400c_set_carrier(client, state->second, state->main);
672
state->scan_in_progress = 0;
673
msp3400c_set_audmode(client);
674
msp_update_volume(state);
677
msp3400c_print_mode(client);
679
/* monitor tv audio mode, the first time don't wait
680
so long to get a quick stereo/bilingual result */
682
while (state->watch_stereo) {
683
if (msp_sleep(state, count ? 1000 : 5000))
687
watch_stereo(client);
690
v4l_dbg(1, msp_debug, client, "thread: exit\n");
695
int msp3410d_thread(void *data)
697
struct i2c_client *client = data;
698
struct msp_state *state = to_state(i2c_get_clientdata(client));
699
int val, i, std, count;
701
v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
702
state->detected_std = V4L2_STD_ALL;
705
v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
706
msp_sleep(state, -1);
707
v4l_dbg(2, msp_debug, client, "msp3410 thread: wakeup\n");
710
v4l_dbg(2, msp_debug, client, "thread: restart scan\n");
712
if (kthread_should_stop())
715
if (state->mode == MSP_MODE_EXTERN) {
716
/* no carrier scan needed, just unmute */
717
v4l_dbg(1, msp_debug, client,
718
"thread: no carrier scan\n");
719
state->scan_in_progress = 0;
720
msp_update_volume(state);
725
state->scan_in_progress = 1;
726
msp_update_volume(state);
728
/* start autodetect. Note: autodetect is not supported for
729
NTSC-M and radio, hence we force the standard in those
734
std = (state->v4l2_std & V4L2_STD_NTSC) ? 0x20 : 1;
735
state->watch_stereo = 0;
738
/* wait for tuner to settle down after a channel change */
739
if (msp_sleep(state, 200))
743
v4l_dbg(2, msp_debug, client,
744
"setting standard: %s (0x%04x)\n",
745
msp_standard_std_name(std), std);
748
/* programmed some specific mode */
751
/* triggered autodetect */
752
msp_write_dem(client, 0x20, std);
754
if (msp_sleep(state, 100))
758
val = msp_read_dem(client, 0x7e);
761
v4l_dbg(2, msp_debug, client,
762
"detection still in progress\n");
765
for (i = 0; msp_stdlist[i].name != NULL; i++)
766
if (msp_stdlist[i].retval == val)
768
v4l_dbg(1, msp_debug, client, "current standard: %s (0x%04x)\n",
769
msp_standard_std_name(val), val);
770
state->main = msp_stdlist[i].main;
771
state->second = msp_stdlist[i].second;
773
state->rxsubchans = V4L2_TUNER_SUB_MONO;
775
if (msp_amsound && !state->radio &&
776
(state->v4l2_std & V4L2_STD_SECAM) && (val != 0x0009)) {
777
/* autodetection has failed, let backup */
778
v4l_dbg(1, msp_debug, client, "autodetection failed,"
779
" switching to backup standard: %s (0x%04x)\n",
780
msp_stdlist[8].name ?
781
msp_stdlist[8].name : "unknown", val);
782
state->std = val = 0x0009;
783
msp_write_dem(client, 0x20, val);
785
state->detected_std = msp_standard_std(state->std);
790
case 0x0008: /* B/G NICAM */
791
case 0x000a: /* I NICAM */
792
case 0x000b: /* D/K NICAM */
794
state->mode = MSP_MODE_FM_NICAM2;
796
state->mode = MSP_MODE_FM_NICAM1;
797
/* just turn on stereo */
799
state->watch_stereo = 1;
802
state->mode = MSP_MODE_AM_NICAM;
804
state->watch_stereo = 1;
806
case 0x0020: /* BTSC */
807
/* The pre-'G' models only have BTSC-mono */
808
state->mode = MSP_MODE_BTSC;
810
case 0x0040: /* FM radio */
811
state->mode = MSP_MODE_FM_RADIO;
812
state->rxsubchans = V4L2_TUNER_SUB_STEREO;
813
/* not needed in theory if we have radio, but
814
short programming enables carrier mute */
815
msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
816
msp3400c_set_carrier(client, MSP_CARRIER(10.7),
823
state->mode = MSP_MODE_FM_TERRA;
824
state->watch_stereo = 1;
828
/* set various prescales */
829
msp_write_dsp(client, 0x0d, 0x1900); /* scart */
830
msp_write_dsp(client, 0x0e, 0x3000); /* FM */
831
if (state->has_nicam)
832
msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
834
if (state->has_i2s_conf)
835
msp_write_dem(client, 0x40, state->i2s_mode);
838
msp3400c_set_audmode(client);
839
state->scan_in_progress = 0;
840
msp_update_volume(state);
842
/* monitor tv audio mode, the first time don't wait
843
so long to get a quick stereo/bilingual result */
845
while (state->watch_stereo) {
846
if (msp_sleep(state, count ? 1000 : 5000))
850
watch_stereo(client);
853
v4l_dbg(1, msp_debug, client, "thread: exit\n");
857
/* ----------------------------------------------------------------------- */
859
/* msp34xxG + (autoselect no-thread)
860
* this one uses both automatic standard detection and automatic sound
861
* select which are available in the newer G versions
862
* struct msp: only norm, acb and source are really used in this mode
865
static int msp34xxg_modus(struct i2c_client *client)
867
struct msp_state *state = to_state(i2c_get_clientdata(client));
870
v4l_dbg(1, msp_debug, client, "selected radio modus\n");
873
if (state->v4l2_std == V4L2_STD_NTSC_M_JP) {
874
v4l_dbg(1, msp_debug, client, "selected M (EIA-J) modus\n");
877
if (state->v4l2_std == V4L2_STD_NTSC_M_KR) {
878
v4l_dbg(1, msp_debug, client, "selected M (A2) modus\n");
881
if (state->v4l2_std == V4L2_STD_SECAM_L) {
882
v4l_dbg(1, msp_debug, client, "selected SECAM-L modus\n");
885
if (state->v4l2_std & V4L2_STD_MN) {
886
v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
892
static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
894
struct msp_state *state = to_state(i2c_get_clientdata(client));
897
switch (state->audmode) {
898
case V4L2_TUNER_MODE_MONO:
899
source = 0; /* mono only */
902
case V4L2_TUNER_MODE_LANG2:
903
source = 4; /* stereo or B */
906
case V4L2_TUNER_MODE_LANG1_LANG2:
907
source = 1; /* stereo or A|B */
910
case V4L2_TUNER_MODE_LANG1:
911
source = 3; /* stereo or A */
914
case V4L2_TUNER_MODE_STEREO:
916
source = 3; /* stereo or A */
921
if (in == MSP_DSP_IN_TUNER)
922
source = (source << 8) | 0x20;
923
/* the msp34x2g puts the MAIN_AVC, MAIN and AUX sources in 12, 13, 14
924
instead of 11, 12, 13. So we add one for that msp version. */
925
else if (in >= MSP_DSP_IN_MAIN_AVC && state->has_dolby_pro_logic)
926
source = ((in + 1) << 8) | matrix;
928
source = (in << 8) | matrix;
930
v4l_dbg(1, msp_debug, client,
931
"set source to %d (0x%x) for output %02x\n", in, source, reg);
932
msp_write_dsp(client, reg, source);
935
static void msp34xxg_set_sources(struct i2c_client *client)
937
struct msp_state *state = to_state(i2c_get_clientdata(client));
938
u32 in = state->route_in;
940
msp34xxg_set_source(client, 0x0008, (in >> 4) & 0xf);
941
/* quasi-peak detector is set to same input as the loudspeaker (MAIN) */
942
msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
943
msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
944
msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
945
if (state->has_scart2_out)
946
msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
947
msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
950
/* (re-)initialize the msp34xxg */
951
static void msp34xxg_reset(struct i2c_client *client)
953
struct msp_state *state = to_state(i2c_get_clientdata(client));
954
int tuner = (state->route_in >> 3) & 1;
957
/* initialize std to 1 (autodetect) to signal that no standard is
963
if (state->has_i2s_conf)
964
msp_write_dem(client, 0x40, state->i2s_mode);
966
/* step-by-step initialisation, as described in the manual */
967
modus = msp34xxg_modus(client);
968
modus |= tuner ? 0x100 : 0;
969
msp_write_dem(client, 0x30, modus);
971
/* write the dsps that may have an influence on
972
standard/audio autodetection right now */
973
msp34xxg_set_sources(client);
975
msp_write_dsp(client, 0x0d, 0x1900); /* scart */
976
msp_write_dsp(client, 0x0e, 0x3000); /* FM */
977
if (state->has_nicam)
978
msp_write_dsp(client, 0x10, 0x5a00); /* nicam */
980
/* set identification threshold. Personally, I
981
* I set it to a higher value than the default
982
* of 0x190 to ignore noisy stereo signals.
983
* this needs tuning. (recommended range 0x00a0-0x03c0)
984
* 0x7f0 = forced mono mode
986
* a2 threshold for stereo/bilingual.
987
* Note: this register is part of the Manual/Compatibility mode.
988
* It is supported by all 'G'-family chips.
990
msp_write_dem(client, 0x22, msp_stereo_thresh);
993
int msp34xxg_thread(void *data)
995
struct i2c_client *client = data;
996
struct msp_state *state = to_state(i2c_get_clientdata(client));
999
v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
1000
state->detected_std = V4L2_STD_ALL;
1003
v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
1004
msp_sleep(state, -1);
1005
v4l_dbg(2, msp_debug, client, "msp34xxg thread: wakeup\n");
1008
v4l_dbg(1, msp_debug, client, "thread: restart scan\n");
1010
if (kthread_should_stop())
1013
if (state->mode == MSP_MODE_EXTERN) {
1014
/* no carrier scan needed, just unmute */
1015
v4l_dbg(1, msp_debug, client,
1016
"thread: no carrier scan\n");
1017
state->scan_in_progress = 0;
1018
msp_update_volume(state);
1023
msp34xxg_reset(client);
1024
state->std = state->radio ? 0x40 :
1025
(state->force_btsc && msp_standard == 1) ? 32 : msp_standard;
1026
msp_write_dem(client, 0x20, state->std);
1027
/* start autodetect */
1028
if (state->std != 1)
1031
/* watch autodetect */
1032
v4l_dbg(1, msp_debug, client,
1033
"started autodetect, waiting for result\n");
1034
for (i = 0; i < 10; i++) {
1035
if (msp_sleep(state, 100))
1039
val = msp_read_dem(client, 0x7e);
1044
v4l_dbg(2, msp_debug, client,
1045
"detection still in progress\n");
1047
if (state->std == 1) {
1048
v4l_dbg(1, msp_debug, client,
1049
"detection still in progress after 10 tries. giving up.\n");
1054
v4l_dbg(1, msp_debug, client,
1055
"detected standard: %s (0x%04x)\n",
1056
msp_standard_std_name(state->std), state->std);
1057
state->detected_std = msp_standard_std(state->std);
1059
if (state->std == 9) {
1061
msp_write_dsp(client, 0x0e, 0x7c00);
1064
/* unmute: dispatch sound to scart output, set scart volume */
1065
msp_update_volume(state);
1068
if (msp_write_dsp(client, 0x13, state->acb))
1071
/* the periodic stereo/SAP check is only relevant for
1072
the 0x20 standard (BTSC) */
1073
if (state->std != 0x20)
1076
state->watch_stereo = 1;
1078
/* monitor tv audio mode, the first time don't wait
1079
in order to get a quick stereo/SAP update */
1080
watch_stereo(client);
1081
while (state->watch_stereo) {
1082
watch_stereo(client);
1083
if (msp_sleep(state, 5000))
1087
v4l_dbg(1, msp_debug, client, "thread: exit\n");
1091
static int msp34xxg_detect_stereo(struct i2c_client *client)
1093
struct msp_state *state = to_state(i2c_get_clientdata(client));
1094
int status = msp_read_dem(client, 0x0200);
1095
int is_bilingual = status & 0x100;
1096
int is_stereo = status & 0x40;
1097
int oldrx = state->rxsubchans;
1099
if (state->mode == MSP_MODE_EXTERN)
1102
state->rxsubchans = 0;
1104
state->rxsubchans = V4L2_TUNER_SUB_STEREO;
1106
state->rxsubchans = V4L2_TUNER_SUB_MONO;
1108
if (state->std == 0x20)
1109
state->rxsubchans |= V4L2_TUNER_SUB_SAP;
1112
V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1114
v4l_dbg(1, msp_debug, client,
1115
"status=0x%x, stereo=%d, bilingual=%d -> rxsubchans=%d\n",
1116
status, is_stereo, is_bilingual, state->rxsubchans);
1117
return (oldrx != state->rxsubchans);
1120
static void msp34xxg_set_audmode(struct i2c_client *client)
1122
struct msp_state *state = to_state(i2c_get_clientdata(client));
1124
if (state->std == 0x20) {
1125
if ((state->rxsubchans & V4L2_TUNER_SUB_SAP) &&
1126
(state->audmode == V4L2_TUNER_MODE_LANG1_LANG2 ||
1127
state->audmode == V4L2_TUNER_MODE_LANG2)) {
1128
msp_write_dem(client, 0x20, 0x21);
1130
msp_write_dem(client, 0x20, 0x20);
1134
msp34xxg_set_sources(client);
1137
void msp_set_audmode(struct i2c_client *client)
1139
struct msp_state *state = to_state(i2c_get_clientdata(client));
1141
switch (state->opmode) {
1143
case OPMODE_AUTODETECT:
1144
msp3400c_set_audmode(client);
1146
case OPMODE_AUTOSELECT:
1147
msp34xxg_set_audmode(client);
1152
int msp_detect_stereo(struct i2c_client *client)
1154
struct msp_state *state = to_state(i2c_get_clientdata(client));
1156
switch (state->opmode) {
1158
case OPMODE_AUTODETECT:
1159
return msp3400c_detect_stereo(client);
1160
case OPMODE_AUTOSELECT:
1161
return msp34xxg_detect_stereo(client);