mirror of https://gitee.com/openkylin/linux.git
1102 lines
32 KiB
C
1102 lines
32 KiB
C
/*
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* Programming the mspx4xx sound processor family
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*
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* (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
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*
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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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*
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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
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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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 02110-1301, USA.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/freezer.h>
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#include <linux/videodev.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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chip versions */
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static struct {
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int retval;
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int main, second;
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char *name;
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} msp_stdlist[] = {
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{ 0x0000, 0, 0, "could not detect sound standard" },
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{ 0x0001, 0, 0, "autodetect start" },
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{ 0x0002, MSP_CARRIER(4.5), MSP_CARRIER(4.72), "4.5/4.72 M Dual FM-Stereo" },
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{ 0x0003, MSP_CARRIER(5.5), MSP_CARRIER(5.7421875), "5.5/5.74 B/G Dual FM-Stereo" },
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{ 0x0004, MSP_CARRIER(6.5), MSP_CARRIER(6.2578125), "6.5/6.25 D/K1 Dual FM-Stereo" },
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{ 0x0005, MSP_CARRIER(6.5), MSP_CARRIER(6.7421875), "6.5/6.74 D/K2 Dual FM-Stereo" },
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{ 0x0006, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 D/K FM-Mono (HDEV3)" },
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{ 0x0007, MSP_CARRIER(6.5), MSP_CARRIER(5.7421875), "6.5/5.74 D/K3 Dual FM-Stereo" },
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{ 0x0008, MSP_CARRIER(5.5), MSP_CARRIER(5.85), "5.5/5.85 B/G NICAM FM" },
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{ 0x0009, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 L NICAM AM" },
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{ 0x000a, MSP_CARRIER(6.0), MSP_CARRIER(6.55), "6.0/6.55 I NICAM FM" },
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{ 0x000b, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM" },
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{ 0x000c, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV2)" },
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{ 0x000d, MSP_CARRIER(6.5), MSP_CARRIER(5.85), "6.5/5.85 D/K NICAM FM (HDEV3)" },
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{ 0x0020, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Stereo" },
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{ 0x0021, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M BTSC-Mono + SAP" },
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{ 0x0030, MSP_CARRIER(4.5), MSP_CARRIER(4.5), "4.5 M EIA-J Japan Stereo" },
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{ 0x0040, MSP_CARRIER(10.7), MSP_CARRIER(10.7), "10.7 FM-Stereo Radio" },
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{ 0x0050, MSP_CARRIER(6.5), MSP_CARRIER(6.5), "6.5 SAT-Mono" },
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{ 0x0051, MSP_CARRIER(7.02), MSP_CARRIER(7.20), "7.02/7.20 SAT-Stereo" },
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{ 0x0060, MSP_CARRIER(7.2), MSP_CARRIER(7.2), "7.2 SAT ADR" },
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{ -1, 0, 0, NULL }, /* EOF */
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};
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static struct msp3400c_init_data_dem {
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int fir1[6];
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int fir2[6];
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int cdo1;
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int cdo2;
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int ad_cv;
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int mode_reg;
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int dsp_src;
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int dsp_matrix;
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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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},{ /* FM Radio */
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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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},{ /* Terrestial 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
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},{ /* NICAM/FM -- I (6.0/6.552) */
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{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
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},{ /* 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
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},
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};
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struct msp3400c_carrier_detect {
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int cdo;
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char *name;
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};
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static struct msp3400c_carrier_detect msp3400c_carrier_detect_main[] = {
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/* main carrier */
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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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};
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static struct msp3400c_carrier_detect msp3400c_carrier_detect_55[] = {
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/* PAL B/G */
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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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};
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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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/* ------------------------------------------------------------------------ */
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const char *msp_standard_std_name(int std)
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{
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int i;
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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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return "unknown";
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}
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static void msp_set_source(struct i2c_client *client, u16 src)
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{
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struct msp_state *state = i2c_get_clientdata(client);
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if (msp_dolby) {
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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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} else {
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msp_write_dsp(client, 0x0008, src);
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msp_write_dsp(client, 0x0009, src);
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}
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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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}
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void msp3400c_set_carrier(struct i2c_client *client, int cdo1, int cdo2)
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{
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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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}
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void msp3400c_set_mode(struct i2c_client *client, int mode)
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{
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struct msp_state *state = i2c_get_clientdata(client);
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struct msp3400c_init_data_dem *data = &msp3400c_init_data[mode];
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int tuner = (state->routing.input >> 3) & 1;
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int i;
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v4l_dbg(1, msp_debug, client, "set_mode: %d\n", mode);
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state->mode = 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);
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/* set prescales */
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/* 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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}
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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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{
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static char *strmode[] = { "mono", "stereo", "lang2", "lang1", "lang1+lang2" };
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struct msp_state *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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* it's never called
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*/
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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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state->audmode);
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return;
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}
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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. */
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if (state->mode != MSP_MODE_EXTERN) {
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/* switch to mono if only mono is available */
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if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
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audmode = V4L2_TUNER_MODE_MONO;
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/* if bilingual */
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else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
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/* and mono or stereo, then fallback to lang1 */
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if (audmode == V4L2_TUNER_MODE_MONO ||
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audmode == V4L2_TUNER_MODE_STEREO)
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audmode = V4L2_TUNER_MODE_LANG1;
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}
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/* if stereo, and audmode is not mono, then switch to stereo */
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else if (audmode != V4L2_TUNER_MODE_MONO)
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audmode = V4L2_TUNER_MODE_STEREO;
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}
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/* switch demodulator */
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switch (state->mode) {
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case MSP_MODE_FM_TERRA:
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v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
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switch (audmode) {
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case V4L2_TUNER_MODE_STEREO:
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msp_write_dsp(client, 0x000e, 0x3001);
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break;
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case V4L2_TUNER_MODE_MONO:
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case V4L2_TUNER_MODE_LANG1:
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case V4L2_TUNER_MODE_LANG2:
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case V4L2_TUNER_MODE_LANG1_LANG2:
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msp_write_dsp(client, 0x000e, 0x3000);
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break;
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}
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break;
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case MSP_MODE_FM_SAT:
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v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
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switch (audmode) {
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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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break;
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case V4L2_TUNER_MODE_STEREO:
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case V4L2_TUNER_MODE_LANG1_LANG2:
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msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
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break;
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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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break;
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case V4L2_TUNER_MODE_LANG2:
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msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
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break;
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}
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break;
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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, "NICAM set_audmode: %s\n",modestr);
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if (state->nicam_on)
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src = 0x0100; /* NICAM */
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break;
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case MSP_MODE_BTSC:
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v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
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break;
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case MSP_MODE_EXTERN:
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v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
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src = 0x0200; /* SCART */
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break;
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case MSP_MODE_FM_RADIO:
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v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
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break;
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default:
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v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
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return;
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}
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/* switch audio */
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v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode);
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switch (audmode) {
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case V4L2_TUNER_MODE_STEREO:
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case V4L2_TUNER_MODE_LANG1_LANG2:
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src |= 0x0020;
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break;
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case V4L2_TUNER_MODE_MONO:
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if (state->mode == MSP_MODE_AM_NICAM) {
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v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
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/* AM mono decoding is handled by tuner, not MSP chip */
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/* SCART switching control register */
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msp_set_scart(client, SCART_MONO, 0);
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src = 0x0200;
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break;
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}
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if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
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src = 0x0030;
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break;
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case V4L2_TUNER_MODE_LANG1:
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break;
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case V4L2_TUNER_MODE_LANG2:
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src |= 0x0010;
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break;
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}
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v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
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msp_set_source(client, src);
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}
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static void msp3400c_print_mode(struct i2c_client *client)
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{
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struct msp_state *state = i2c_get_clientdata(client);
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if (state->main == state->second) {
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v4l_dbg(1, msp_debug, client, "mono sound carrier: %d.%03d MHz\n",
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state->main / 910000, (state->main / 910) % 1000);
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} else {
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v4l_dbg(1, msp_debug, client, "main sound carrier: %d.%03d MHz\n",
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state->main / 910000, (state->main / 910) % 1000);
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}
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if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2)
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v4l_dbg(1, msp_debug, client, "NICAM/FM carrier : %d.%03d MHz\n",
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state->second / 910000, (state->second/910) % 1000);
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if (state->mode == MSP_MODE_AM_NICAM)
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v4l_dbg(1, msp_debug, client, "NICAM/AM carrier : %d.%03d MHz\n",
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state->second / 910000, (state->second / 910) % 1000);
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if (state->mode == MSP_MODE_FM_TERRA && state->main != state->second) {
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v4l_dbg(1, msp_debug, client, "FM-stereo carrier : %d.%03d MHz\n",
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state->second / 910000, (state->second / 910) % 1000);
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}
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}
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/* ----------------------------------------------------------------------- */
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|
|
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");
|
|
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_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");
|
|
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_set_audio(client);
|
|
continue;
|
|
}
|
|
|
|
/* mute audio */
|
|
state->scan_in_progress = 1;
|
|
msp_set_audio(client);
|
|
|
|
/* 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);
|
|
}
|
|
|
|
/* 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_set_audio(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;
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
/* 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 = 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_PAL) {
|
|
v4l_dbg(1, msp_debug, client, "selected PAL modus\n");
|
|
return 0x7001;
|
|
}
|
|
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_MN) {
|
|
v4l_dbg(1, msp_debug, client, "selected M (BTSC) modus\n");
|
|
return 0x2001;
|
|
}
|
|
if (state->v4l2_std & V4L2_STD_SECAM) {
|
|
v4l_dbg(1, msp_debug, client, "selected SECAM modus\n");
|
|
return 0x6001;
|
|
}
|
|
return 0x0001;
|
|
}
|
|
|
|
static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
|
|
{
|
|
struct msp_state *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 = i2c_get_clientdata(client);
|
|
u32 in = state->routing.input;
|
|
|
|
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 = i2c_get_clientdata(client);
|
|
int tuner = (state->routing.input >> 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 = i2c_get_clientdata(client);
|
|
int val, i;
|
|
|
|
v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
|
|
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_set_audio(client);
|
|
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);
|
|
|
|
if (state->std == 9) {
|
|
/* AM NICAM mode */
|
|
msp_write_dsp(client, 0x0e, 0x7c00);
|
|
}
|
|
|
|
/* unmute: dispatch sound to scart output, set scart volume */
|
|
msp_set_audio(client);
|
|
|
|
/* restore ACB */
|
|
if (msp_write_dsp(client, 0x13, state->acb))
|
|
return -1;
|
|
|
|
/* 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 = 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 = 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 = 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 = 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;
|
|
}
|
|
|