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1155 lines
33 KiB
1155 lines
33 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Programming the mspx4xx sound processor family |
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* |
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* (c) 1997-2001 Gerd Knorr <[email protected]> |
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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/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/drv-intf/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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|
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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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v4l2_std_id std; |
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} msp_stdlist[] = { |
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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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}; |
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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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}, { /* 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 |
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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 v4l2_std_id msp_standard_std(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].std; |
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return V4L2_STD_ALL; |
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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 = to_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 = to_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->route_in >> 3) & 1; |
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int i; |
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dev_dbg_lvl(&client->dev, 1, msp_debug, "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[] = { |
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"mono", "stereo", "lang2", "lang1", "lang1+lang2" |
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}; |
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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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* it's never called |
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*/ |
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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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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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|
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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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dev_dbg_lvl(&client->dev, 1, msp_debug, "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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dev_dbg_lvl(&client->dev, 1, msp_debug, "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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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"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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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"BTSC set_audmode: %s\n", modestr); |
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break; |
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case MSP_MODE_EXTERN: |
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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"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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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"FM-Radio set_audmode: %s\n", modestr); |
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break; |
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default: |
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dev_dbg_lvl(&client->dev, 1, msp_debug, "mono set_audmode\n"); |
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return; |
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} |
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|
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/* switch audio */ |
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dev_dbg_lvl(&client->dev, 1, msp_debug, "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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dev_dbg_lvl(&client->dev, 1, msp_debug, "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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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"set_audmode final source/matrix = 0x%x\n", src); |
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|
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msp_set_source(client, src); |
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} |
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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 = to_state(i2c_get_clientdata(client)); |
|
|
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if (state->main == state->second) |
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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"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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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"main sound carrier: %d.%03d MHz\n", |
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state->main / 910000, (state->main / 910) % 1000); |
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if (state->mode == MSP_MODE_FM_NICAM1 || state->mode == MSP_MODE_FM_NICAM2) |
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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"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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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"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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dev_dbg_lvl(&client->dev, 1, msp_debug, |
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"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) |
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{ |
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struct msp_state *state = to_state(i2c_get_clientdata(client)); |
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int val; |
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int rxsubchans = state->rxsubchans; |
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int newnicam = state->nicam_on; |
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int update = 0; |
|
|
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switch (state->mode) { |
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case MSP_MODE_FM_TERRA: |
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val = msp_read_dsp(client, 0x18); |
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if (val > 32767) |
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val -= 65536; |
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dev_dbg_lvl(&client->dev, 2, msp_debug, |
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"stereo detect register: %d\n", val); |
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if (val > 8192) { |
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rxsubchans = V4L2_TUNER_SUB_STEREO; |
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} 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); |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "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; |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"watch: rxsubchans %02x => %02x\n", |
|
state->rxsubchans, rxsubchans); |
|
state->rxsubchans = rxsubchans; |
|
} |
|
if (newnicam != state->nicam_on) { |
|
update = 1; |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "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; |
|
|
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3400 daemon started\n"); |
|
state->detected_std = V4L2_STD_ALL; |
|
set_freezable(); |
|
for (;;) { |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3400 thread: sleep\n"); |
|
msp_sleep(state, -1); |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3400 thread: wakeup\n"); |
|
|
|
restart: |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "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 */ |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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; |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "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; |
|
} |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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; |
|
} |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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; |
|
fallthrough; |
|
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); |
|
} |
|
} |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "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; |
|
|
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "msp3410 daemon started\n"); |
|
state->detected_std = V4L2_STD_ALL; |
|
set_freezable(); |
|
for (;;) { |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3410 thread: sleep\n"); |
|
msp_sleep(state, -1); |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "msp3410 thread: wakeup\n"); |
|
|
|
restart: |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "thread: restart scan\n"); |
|
state->restart = 0; |
|
if (kthread_should_stop()) |
|
break; |
|
|
|
if (state->mode == MSP_MODE_EXTERN) { |
|
/* no carrier scan needed, just unmute */ |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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) |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, |
|
"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; |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, |
|
"detection still in progress\n"); |
|
} |
|
} |
|
for (i = 0; msp_stdlist[i].name != NULL; i++) |
|
if (msp_stdlist[i].retval == val) |
|
break; |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "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 */ |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "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); |
|
} |
|
} |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "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) { |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "selected radio modus\n"); |
|
return 0x0001; |
|
} |
|
if (state->v4l2_std == V4L2_STD_NTSC_M_JP) { |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (EIA-J) modus\n"); |
|
return 0x4001; |
|
} |
|
if (state->v4l2_std == V4L2_STD_NTSC_M_KR) { |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "selected M (A2) modus\n"); |
|
return 0x0001; |
|
} |
|
if (state->v4l2_std == V4L2_STD_SECAM_L) { |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "selected SECAM-L modus\n"); |
|
return 0x6001; |
|
} |
|
if (state->v4l2_std & V4L2_STD_MN) { |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "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; |
|
|
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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; |
|
|
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "msp34xxg daemon started\n"); |
|
state->detected_std = V4L2_STD_ALL; |
|
set_freezable(); |
|
for (;;) { |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "msp34xxg thread: sleep\n"); |
|
msp_sleep(state, -1); |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, "msp34xxg thread: wakeup\n"); |
|
|
|
restart: |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "thread: restart scan\n"); |
|
state->restart = 0; |
|
if (kthread_should_stop()) |
|
break; |
|
|
|
if (state->mode == MSP_MODE_EXTERN) { |
|
/* no carrier scan needed, just unmute */ |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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 */ |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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; |
|
} |
|
dev_dbg_lvl(&client->dev, 2, msp_debug, |
|
"detection still in progress\n"); |
|
} |
|
if (state->std == 1) { |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"detection still in progress after 10 tries. giving up.\n"); |
|
continue; |
|
} |
|
|
|
unmute: |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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; |
|
} |
|
} |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, "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; |
|
} |
|
dev_dbg_lvl(&client->dev, 1, msp_debug, |
|
"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; |
|
} |
|
|
|
|