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1068 lines
28 KiB
1068 lines
28 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* |
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* device driver for philips saa7134 based TV cards |
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* tv audio decoder (fm stereo, nicam, ...) |
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* |
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* (c) 2001-03 Gerd Knorr <[email protected]> [SuSE Labs] |
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*/ |
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|
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#include "saa7134.h" |
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#include "saa7134-reg.h" |
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|
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#include <linux/init.h> |
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#include <linux/list.h> |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/kthread.h> |
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#include <linux/delay.h> |
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#include <linux/freezer.h> |
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#include <asm/div64.h> |
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|
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/* ------------------------------------------------------------------ */ |
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|
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static unsigned int audio_debug; |
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module_param(audio_debug, int, 0644); |
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MODULE_PARM_DESC(audio_debug,"enable debug messages [tv audio]"); |
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|
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static unsigned int audio_ddep; |
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module_param(audio_ddep, int, 0644); |
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MODULE_PARM_DESC(audio_ddep,"audio ddep overwrite"); |
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|
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static int audio_clock_override = UNSET; |
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module_param(audio_clock_override, int, 0644); |
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|
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static int audio_clock_tweak; |
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module_param(audio_clock_tweak, int, 0644); |
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MODULE_PARM_DESC(audio_clock_tweak, "Audio clock tick fine tuning for cards with audio crystal that's slightly off (range [-1024 .. 1024])"); |
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|
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#define audio_dbg(level, fmt, arg...) do { \ |
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if (audio_debug >= level) \ |
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printk(KERN_DEBUG pr_fmt("audio: " fmt), ## arg); \ |
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} while (0) |
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|
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/* msecs */ |
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#define SCAN_INITIAL_DELAY 1000 |
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#define SCAN_SAMPLE_DELAY 200 |
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#define SCAN_SUBCARRIER_DELAY 2000 |
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|
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/* ------------------------------------------------------------------ */ |
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/* saa7134 code */ |
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|
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static struct mainscan { |
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char *name; |
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v4l2_std_id std; |
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int carr; |
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} mainscan[] = { |
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{ |
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.name = "MN", |
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.std = V4L2_STD_MN, |
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.carr = 4500, |
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},{ |
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.name = "BGH", |
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.std = V4L2_STD_B | V4L2_STD_GH, |
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.carr = 5500, |
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},{ |
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.name = "I", |
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.std = V4L2_STD_PAL_I, |
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.carr = 6000, |
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},{ |
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.name = "DKL", |
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.std = V4L2_STD_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC, |
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.carr = 6500, |
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} |
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}; |
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|
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static struct saa7134_tvaudio tvaudio[] = { |
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{ |
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.name = "PAL-B/G FM-stereo", |
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.std = V4L2_STD_PAL_BG, |
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.mode = TVAUDIO_FM_BG_STEREO, |
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.carr1 = 5500, |
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.carr2 = 5742, |
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},{ |
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.name = "PAL-D/K1 FM-stereo", |
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.std = V4L2_STD_PAL_DK, |
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.carr1 = 6500, |
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.carr2 = 6258, |
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.mode = TVAUDIO_FM_BG_STEREO, |
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},{ |
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.name = "PAL-D/K2 FM-stereo", |
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.std = V4L2_STD_PAL_DK, |
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.carr1 = 6500, |
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.carr2 = 6742, |
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.mode = TVAUDIO_FM_BG_STEREO, |
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},{ |
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.name = "PAL-D/K3 FM-stereo", |
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.std = V4L2_STD_PAL_DK, |
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.carr1 = 6500, |
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.carr2 = 5742, |
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.mode = TVAUDIO_FM_BG_STEREO, |
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},{ |
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.name = "PAL-B/G NICAM", |
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.std = V4L2_STD_PAL_BG, |
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.carr1 = 5500, |
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.carr2 = 5850, |
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.mode = TVAUDIO_NICAM_FM, |
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},{ |
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.name = "PAL-I NICAM", |
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.std = V4L2_STD_PAL_I, |
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.carr1 = 6000, |
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.carr2 = 6552, |
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.mode = TVAUDIO_NICAM_FM, |
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},{ |
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.name = "PAL-D/K NICAM", |
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.std = V4L2_STD_PAL_DK, |
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.carr1 = 6500, |
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.carr2 = 5850, |
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.mode = TVAUDIO_NICAM_FM, |
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},{ |
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.name = "SECAM-L NICAM", |
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.std = V4L2_STD_SECAM_L, |
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.carr1 = 6500, |
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.carr2 = 5850, |
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.mode = TVAUDIO_NICAM_AM, |
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},{ |
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.name = "SECAM-D/K NICAM", |
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.std = V4L2_STD_SECAM_DK, |
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.carr1 = 6500, |
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.carr2 = 5850, |
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.mode = TVAUDIO_NICAM_FM, |
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},{ |
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.name = "NTSC-A2 FM-stereo", |
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.std = V4L2_STD_NTSC, |
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.carr1 = 4500, |
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.carr2 = 4724, |
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.mode = TVAUDIO_FM_K_STEREO, |
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},{ |
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.name = "NTSC-M", |
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.std = V4L2_STD_NTSC, |
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.carr1 = 4500, |
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.carr2 = -1, |
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.mode = TVAUDIO_FM_MONO, |
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} |
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}; |
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#define TVAUDIO ARRAY_SIZE(tvaudio) |
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|
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/* ------------------------------------------------------------------ */ |
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|
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static u32 tvaudio_carr2reg(u32 carrier) |
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{ |
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u64 a = carrier; |
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|
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a <<= 24; |
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do_div(a,12288); |
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return a; |
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} |
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|
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static void tvaudio_setcarrier(struct saa7134_dev *dev, |
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int primary, int secondary) |
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{ |
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if (-1 == secondary) |
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secondary = primary; |
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saa_writel(SAA7134_CARRIER1_FREQ0 >> 2, tvaudio_carr2reg(primary)); |
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saa_writel(SAA7134_CARRIER2_FREQ0 >> 2, tvaudio_carr2reg(secondary)); |
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} |
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|
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#define SAA7134_MUTE_MASK 0xbb |
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#define SAA7134_MUTE_ANALOG 0x04 |
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#define SAA7134_MUTE_I2S 0x40 |
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|
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static void mute_input_7134(struct saa7134_dev *dev) |
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{ |
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unsigned int mute; |
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struct saa7134_input *in; |
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int ausel=0, ics=0, ocs=0; |
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int mask; |
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|
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/* look what is to do ... */ |
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in = dev->input; |
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mute = (dev->ctl_mute || |
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(dev->automute && (&card(dev).radio) != in)); |
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if (card(dev).mute.type) { |
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/* |
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* 7130 - we'll mute using some unconnected audio input |
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* 7134 - we'll probably should switch external mux with gpio |
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*/ |
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if (mute) |
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in = &card(dev).mute; |
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} |
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|
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if (dev->hw_mute == mute && |
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dev->hw_input == in && !dev->insuspend) { |
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audio_dbg(1, "mute/input: nothing to do [mute=%d,input=%s]\n", |
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mute, saa7134_input_name[in->type]); |
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return; |
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} |
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|
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audio_dbg(1, "ctl_mute=%d automute=%d input=%s => mute=%d input=%s\n", |
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dev->ctl_mute, dev->automute, |
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saa7134_input_name[dev->input->type], mute, |
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saa7134_input_name[in->type]); |
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dev->hw_mute = mute; |
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dev->hw_input = in; |
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|
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if (PCI_DEVICE_ID_PHILIPS_SAA7134 == dev->pci->device) |
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/* 7134 mute */ |
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saa_writeb(SAA7134_AUDIO_MUTE_CTRL, mute ? |
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SAA7134_MUTE_MASK | |
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SAA7134_MUTE_ANALOG | |
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SAA7134_MUTE_I2S : |
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SAA7134_MUTE_MASK); |
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|
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/* switch internal audio mux */ |
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switch (in->amux) { |
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case TV: ausel=0xc0; ics=0x00; ocs=0x02; break; |
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case LINE1: ausel=0x80; ics=0x00; ocs=0x00; break; |
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case LINE2: ausel=0x80; ics=0x08; ocs=0x01; break; |
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case LINE2_LEFT: ausel=0x80; ics=0x08; ocs=0x05; break; |
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} |
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saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, ausel); |
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saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, ics); |
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saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, ocs); |
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// for oss, we need to change the clock configuration |
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if (in->amux == TV) |
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saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00); |
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else |
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saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x01); |
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|
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/* switch gpio-connected external audio mux */ |
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if (0 == card(dev).gpiomask) |
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return; |
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|
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mask = card(dev).gpiomask; |
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saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask); |
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saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio); |
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saa7134_track_gpio(dev, saa7134_input_name[in->type]); |
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} |
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|
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static void tvaudio_setmode(struct saa7134_dev *dev, |
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struct saa7134_tvaudio *audio, |
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char *note) |
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{ |
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int acpf, tweak = 0; |
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|
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if (dev->tvnorm->id == V4L2_STD_NTSC) { |
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acpf = 0x19066; |
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} else { |
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acpf = 0x1e000; |
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} |
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if (audio_clock_tweak > -1024 && audio_clock_tweak < 1024) |
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tweak = audio_clock_tweak; |
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|
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if (note) |
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audio_dbg(1, "tvaudio_setmode: %s %s [%d.%03d/%d.%03d MHz] acpf=%d%+d\n", |
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note, audio->name, |
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audio->carr1 / 1000, audio->carr1 % 1000, |
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audio->carr2 / 1000, audio->carr2 % 1000, |
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acpf, tweak); |
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|
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acpf += tweak; |
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saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD0, (acpf & 0x0000ff) >> 0); |
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saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD1, (acpf & 0x00ff00) >> 8); |
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saa_writeb(SAA7134_AUDIO_CLOCKS_PER_FIELD2, (acpf & 0x030000) >> 16); |
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tvaudio_setcarrier(dev,audio->carr1,audio->carr2); |
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|
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switch (audio->mode) { |
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case TVAUDIO_FM_MONO: |
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case TVAUDIO_FM_BG_STEREO: |
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saa_writeb(SAA7134_DEMODULATOR, 0x00); |
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saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00); |
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saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22); |
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saa_writeb(SAA7134_FM_DEMATRIX, 0x80); |
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saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0); |
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break; |
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case TVAUDIO_FM_K_STEREO: |
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saa_writeb(SAA7134_DEMODULATOR, 0x00); |
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saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x01); |
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saa_writeb(SAA7134_FM_DEEMPHASIS, 0x22); |
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saa_writeb(SAA7134_FM_DEMATRIX, 0x80); |
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saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0); |
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break; |
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case TVAUDIO_NICAM_FM: |
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saa_writeb(SAA7134_DEMODULATOR, 0x10); |
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saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00); |
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saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44); |
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saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1); |
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saa_writeb(SAA7134_NICAM_CONFIG, 0x00); |
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break; |
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case TVAUDIO_NICAM_AM: |
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saa_writeb(SAA7134_DEMODULATOR, 0x12); |
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saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00); |
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saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44); |
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saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1); |
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saa_writeb(SAA7134_NICAM_CONFIG, 0x00); |
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break; |
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case TVAUDIO_FM_SAT_STEREO: |
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/* not implemented (yet) */ |
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break; |
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} |
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} |
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|
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static int tvaudio_sleep(struct saa7134_dev *dev, int timeout) |
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{ |
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if (dev->thread.scan1 == dev->thread.scan2 && |
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!kthread_should_stop()) { |
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if (timeout < 0) { |
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set_current_state(TASK_INTERRUPTIBLE); |
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schedule(); |
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} else { |
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schedule_timeout_interruptible |
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(msecs_to_jiffies(timeout)); |
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} |
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} |
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return dev->thread.scan1 != dev->thread.scan2; |
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} |
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|
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static int tvaudio_checkcarrier(struct saa7134_dev *dev, struct mainscan *scan) |
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{ |
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__s32 left,right,value; |
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|
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if (!(dev->tvnorm->id & scan->std)) { |
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audio_dbg(1, "skipping %d.%03d MHz [%4s]\n", |
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scan->carr / 1000, scan->carr % 1000, scan->name); |
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return 0; |
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} |
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|
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if (audio_debug > 1) { |
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int i; |
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audio_dbg(1, "debug %d:", scan->carr); |
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for (i = -150; i <= 150; i += 30) { |
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tvaudio_setcarrier(dev,scan->carr+i,scan->carr+i); |
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saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
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if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) |
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return -1; |
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value = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
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if (0 == i) |
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pr_cont(" # %6d # ", value >> 16); |
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else |
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pr_cont(" %6d", value >> 16); |
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} |
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pr_cont("\n"); |
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} |
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|
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tvaudio_setcarrier(dev,scan->carr-90,scan->carr-90); |
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saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
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if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) |
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return -1; |
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left = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
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|
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tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90); |
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saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
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if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY)) |
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return -1; |
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right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2); |
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|
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left >>= 16; |
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right >>= 16; |
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value = left > right ? left - right : right - left; |
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audio_dbg(1, "scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n", |
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scan->carr / 1000, scan->carr % 1000, |
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scan->name, value, left, right); |
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return value; |
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} |
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|
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|
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static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio) |
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{ |
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__u32 idp, nicam, nicam_status; |
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int retval = -1; |
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|
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switch (audio->mode) { |
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case TVAUDIO_FM_MONO: |
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return V4L2_TUNER_SUB_MONO; |
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case TVAUDIO_FM_K_STEREO: |
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case TVAUDIO_FM_BG_STEREO: |
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idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5; |
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audio_dbg(1, "getstereo: fm/stereo: idp=0x%x\n", idp); |
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if (0x03 == (idp & 0x03)) |
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retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
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else if (0x05 == (idp & 0x05)) |
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retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; |
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else if (0x01 == (idp & 0x01)) |
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retval = V4L2_TUNER_SUB_MONO; |
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break; |
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case TVAUDIO_FM_SAT_STEREO: |
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/* not implemented (yet) */ |
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break; |
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case TVAUDIO_NICAM_FM: |
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case TVAUDIO_NICAM_AM: |
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nicam = saa_readb(SAA7134_AUDIO_STATUS); |
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audio_dbg(1, "getstereo: nicam=0x%x\n", nicam); |
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if (nicam & 0x1) { |
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nicam_status = saa_readb(SAA7134_NICAM_STATUS); |
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audio_dbg(1, "getstereo: nicam_status=0x%x\n", |
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nicam_status); |
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|
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switch (nicam_status & 0x03) { |
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case 0x01: |
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retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
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break; |
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case 0x02: |
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retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; |
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break; |
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default: |
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retval = V4L2_TUNER_SUB_MONO; |
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} |
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} else { |
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/* No nicam detected */ |
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} |
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break; |
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} |
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if (retval != -1) |
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audio_dbg(1, "found audio subchannels:%s%s%s%s\n", |
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(retval & V4L2_TUNER_SUB_MONO) ? " mono" : "", |
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(retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "", |
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(retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "", |
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(retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : ""); |
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return retval; |
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} |
||
|
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static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio, |
||
u32 mode) |
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{ |
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static char *name[] = { |
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[ V4L2_TUNER_MODE_MONO ] = "mono", |
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[ V4L2_TUNER_MODE_STEREO ] = "stereo", |
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[ V4L2_TUNER_MODE_LANG1 ] = "lang1", |
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[ V4L2_TUNER_MODE_LANG2 ] = "lang2", |
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[ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2", |
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}; |
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static u32 fm[] = { |
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[ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */ |
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[ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */ |
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[ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */ |
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[ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */ |
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[ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */ |
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}; |
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u32 reg; |
||
|
||
switch (audio->mode) { |
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case TVAUDIO_FM_MONO: |
||
/* nothing to do ... */ |
||
break; |
||
case TVAUDIO_FM_K_STEREO: |
||
case TVAUDIO_FM_BG_STEREO: |
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case TVAUDIO_NICAM_AM: |
||
case TVAUDIO_NICAM_FM: |
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audio_dbg(1, "setstereo [fm] => %s\n", |
||
name[mode % ARRAY_SIZE(name)]); |
||
reg = fm[ mode % ARRAY_SIZE(fm) ]; |
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saa_writeb(SAA7134_FM_DEMATRIX, reg); |
||
break; |
||
case TVAUDIO_FM_SAT_STEREO: |
||
/* Not implemented */ |
||
break; |
||
} |
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return 0; |
||
} |
||
|
||
static int tvaudio_thread(void *data) |
||
{ |
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struct saa7134_dev *dev = data; |
||
int carr_vals[ARRAY_SIZE(mainscan)]; |
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unsigned int i, audio, nscan; |
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int max1,max2,carrier,rx,mode,lastmode,default_carrier; |
||
|
||
set_freezable(); |
||
|
||
for (;;) { |
||
tvaudio_sleep(dev,-1); |
||
if (kthread_should_stop()) |
||
goto done; |
||
|
||
restart: |
||
try_to_freeze(); |
||
|
||
dev->thread.scan1 = dev->thread.scan2; |
||
audio_dbg(1, "tvaudio thread scan start [%d]\n", |
||
dev->thread.scan1); |
||
dev->tvaudio = NULL; |
||
|
||
saa_writeb(SAA7134_MONITOR_SELECT, 0xa0); |
||
saa_writeb(SAA7134_FM_DEMATRIX, 0x80); |
||
|
||
if (dev->ctl_automute) |
||
dev->automute = 1; |
||
|
||
mute_input_7134(dev); |
||
|
||
/* give the tuner some time */ |
||
if (tvaudio_sleep(dev,SCAN_INITIAL_DELAY)) |
||
goto restart; |
||
|
||
max1 = 0; |
||
max2 = 0; |
||
nscan = 0; |
||
carrier = 0; |
||
default_carrier = 0; |
||
for (i = 0; i < ARRAY_SIZE(mainscan); i++) { |
||
if (!(dev->tvnorm->id & mainscan[i].std)) |
||
continue; |
||
if (!default_carrier) |
||
default_carrier = mainscan[i].carr; |
||
nscan++; |
||
} |
||
|
||
if (1 == nscan) { |
||
/* only one candidate -- skip scan ;) */ |
||
audio_dbg(1, "only one main carrier candidate - skipping scan\n"); |
||
max1 = 12345; |
||
carrier = default_carrier; |
||
} else { |
||
/* scan for the main carrier */ |
||
saa_writeb(SAA7134_MONITOR_SELECT,0x00); |
||
tvaudio_setmode(dev,&tvaudio[0],NULL); |
||
for (i = 0; i < ARRAY_SIZE(mainscan); i++) { |
||
carr_vals[i] = tvaudio_checkcarrier(dev, mainscan+i); |
||
if (dev->thread.scan1 != dev->thread.scan2) |
||
goto restart; |
||
} |
||
for (max1 = 0, max2 = 0, i = 0; i < ARRAY_SIZE(mainscan); i++) { |
||
if (max1 < carr_vals[i]) { |
||
max2 = max1; |
||
max1 = carr_vals[i]; |
||
carrier = mainscan[i].carr; |
||
} else if (max2 < carr_vals[i]) { |
||
max2 = carr_vals[i]; |
||
} |
||
} |
||
} |
||
|
||
if (0 != carrier && max1 > 2000 && max1 > max2*3) { |
||
/* found good carrier */ |
||
audio_dbg(1, "found %s main sound carrier @ %d.%03d MHz [%d/%d]\n", |
||
dev->tvnorm->name, carrier/1000, carrier%1000, |
||
max1, max2); |
||
dev->last_carrier = carrier; |
||
dev->automute = 0; |
||
|
||
} else if (0 != dev->last_carrier) { |
||
/* no carrier -- try last detected one as fallback */ |
||
carrier = dev->last_carrier; |
||
audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [last detected]\n", |
||
carrier/1000, carrier%1000); |
||
dev->automute = 1; |
||
|
||
} else { |
||
/* no carrier + no fallback -- use default */ |
||
carrier = default_carrier; |
||
audio_dbg(1, "audio carrier scan failed, using %d.%03d MHz [default]\n", |
||
carrier/1000, carrier%1000); |
||
dev->automute = 1; |
||
} |
||
tvaudio_setcarrier(dev,carrier,carrier); |
||
saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x00); |
||
saa7134_tvaudio_setmute(dev); |
||
/* find the exact tv audio norm */ |
||
for (audio = UNSET, i = 0; i < TVAUDIO; i++) { |
||
if (dev->tvnorm->id != UNSET && |
||
!(dev->tvnorm->id & tvaudio[i].std)) |
||
continue; |
||
if (tvaudio[i].carr1 != carrier) |
||
continue; |
||
/* Note: at least the primary carrier is right here */ |
||
if (UNSET == audio) |
||
audio = i; |
||
tvaudio_setmode(dev,&tvaudio[i],"trying"); |
||
if (tvaudio_sleep(dev,SCAN_SUBCARRIER_DELAY)) |
||
goto restart; |
||
if (-1 != tvaudio_getstereo(dev,&tvaudio[i])) { |
||
audio = i; |
||
break; |
||
} |
||
} |
||
saa_andorb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0x30, 0x30); |
||
if (UNSET == audio) |
||
continue; |
||
tvaudio_setmode(dev,&tvaudio[audio],"using"); |
||
|
||
tvaudio_setstereo(dev,&tvaudio[audio],V4L2_TUNER_MODE_MONO); |
||
dev->tvaudio = &tvaudio[audio]; |
||
|
||
lastmode = 42; |
||
for (;;) { |
||
|
||
try_to_freeze(); |
||
|
||
if (tvaudio_sleep(dev,5000)) |
||
goto restart; |
||
if (kthread_should_stop()) |
||
break; |
||
if (UNSET == dev->thread.mode) { |
||
rx = tvaudio_getstereo(dev, &tvaudio[audio]); |
||
mode = saa7134_tvaudio_rx2mode(rx); |
||
} else { |
||
mode = dev->thread.mode; |
||
} |
||
if (lastmode != mode) { |
||
tvaudio_setstereo(dev,&tvaudio[audio],mode); |
||
lastmode = mode; |
||
} |
||
} |
||
} |
||
|
||
done: |
||
dev->thread.stopped = 1; |
||
return 0; |
||
} |
||
|
||
/* ------------------------------------------------------------------ */ |
||
/* saa7133 / saa7135 code */ |
||
|
||
static char *stdres[0x20] = { |
||
[0x00] = "no standard detected", |
||
[0x01] = "B/G (in progress)", |
||
[0x02] = "D/K (in progress)", |
||
[0x03] = "M (in progress)", |
||
|
||
[0x04] = "B/G A2", |
||
[0x05] = "B/G NICAM", |
||
[0x06] = "D/K A2 (1)", |
||
[0x07] = "D/K A2 (2)", |
||
[0x08] = "D/K A2 (3)", |
||
[0x09] = "D/K NICAM", |
||
[0x0a] = "L NICAM", |
||
[0x0b] = "I NICAM", |
||
|
||
[0x0c] = "M Korea", |
||
[0x0d] = "M BTSC ", |
||
[0x0e] = "M EIAJ", |
||
|
||
[0x0f] = "FM radio / IF 10.7 / 50 deemp", |
||
[0x10] = "FM radio / IF 10.7 / 75 deemp", |
||
[0x11] = "FM radio / IF sel / 50 deemp", |
||
[0x12] = "FM radio / IF sel / 75 deemp", |
||
|
||
[0x13 ... 0x1e ] = "unknown", |
||
[0x1f] = "??? [in progress]", |
||
}; |
||
|
||
#define DSP_RETRY 32 |
||
#define DSP_DELAY 16 |
||
#define SAA7135_DSP_RWCLEAR_RERR 1 |
||
|
||
static inline int saa_dsp_reset_error_bit(struct saa7134_dev *dev) |
||
{ |
||
int state = saa_readb(SAA7135_DSP_RWSTATE); |
||
if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) { |
||
audio_dbg(2, "%s: resetting error bit\n", dev->name); |
||
saa_writeb(SAA7135_DSP_RWCLEAR, SAA7135_DSP_RWCLEAR_RERR); |
||
} |
||
return 0; |
||
} |
||
|
||
static inline int saa_dsp_wait_bit(struct saa7134_dev *dev, int bit) |
||
{ |
||
int state, count = DSP_RETRY; |
||
|
||
state = saa_readb(SAA7135_DSP_RWSTATE); |
||
if (unlikely(state & SAA7135_DSP_RWSTATE_ERR)) { |
||
pr_warn("%s: dsp access error\n", dev->name); |
||
saa_dsp_reset_error_bit(dev); |
||
return -EIO; |
||
} |
||
while (0 == (state & bit)) { |
||
if (unlikely(0 == count)) { |
||
pr_err("dsp access wait timeout [bit=%s]\n", |
||
(bit & SAA7135_DSP_RWSTATE_WRR) ? "WRR" : |
||
(bit & SAA7135_DSP_RWSTATE_RDB) ? "RDB" : |
||
(bit & SAA7135_DSP_RWSTATE_IDA) ? "IDA" : |
||
"???"); |
||
return -EIO; |
||
} |
||
saa_wait(DSP_DELAY); |
||
state = saa_readb(SAA7135_DSP_RWSTATE); |
||
count--; |
||
} |
||
return 0; |
||
} |
||
|
||
|
||
int saa_dsp_writel(struct saa7134_dev *dev, int reg, u32 value) |
||
{ |
||
int err; |
||
|
||
audio_dbg(2, "dsp write reg 0x%x = 0x%06x\n", |
||
(reg << 2) & 0xffffffff, value); |
||
err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR); |
||
if (err < 0) |
||
return err; |
||
saa_writel(reg,value); |
||
err = saa_dsp_wait_bit(dev,SAA7135_DSP_RWSTATE_WRR); |
||
if (err < 0) |
||
return err; |
||
return 0; |
||
} |
||
|
||
static int getstereo_7133(struct saa7134_dev *dev) |
||
{ |
||
int retval = V4L2_TUNER_SUB_MONO; |
||
u32 value; |
||
|
||
value = saa_readl(0x528 >> 2); |
||
if (value & 0x20) |
||
retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO; |
||
if (value & 0x40) |
||
retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2; |
||
return retval; |
||
} |
||
|
||
static int mute_input_7133(struct saa7134_dev *dev) |
||
{ |
||
u32 reg = 0; |
||
u32 xbarin, xbarout; |
||
int mask; |
||
struct saa7134_input *in; |
||
|
||
xbarin = 0x03; |
||
switch (dev->input->amux) { |
||
case TV: |
||
reg = 0x02; |
||
xbarin = 0; |
||
break; |
||
case LINE1: |
||
reg = 0x00; |
||
break; |
||
case LINE2: |
||
case LINE2_LEFT: |
||
reg = 0x09; |
||
break; |
||
} |
||
saa_dsp_writel(dev, 0x464 >> 2, xbarin); |
||
if (dev->ctl_mute) { |
||
reg = 0x07; |
||
xbarout = 0xbbbbbb; |
||
} else |
||
xbarout = 0xbbbb10; |
||
saa_dsp_writel(dev, 0x46c >> 2, xbarout); |
||
|
||
saa_writel(0x594 >> 2, reg); |
||
|
||
|
||
/* switch gpio-connected external audio mux */ |
||
if (0 != card(dev).gpiomask) { |
||
mask = card(dev).gpiomask; |
||
|
||
if (card(dev).mute.type && dev->ctl_mute) |
||
in = &card(dev).mute; |
||
else |
||
in = dev->input; |
||
|
||
saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, mask, mask); |
||
saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, mask, in->gpio); |
||
saa7134_track_gpio(dev, saa7134_input_name[in->type]); |
||
} |
||
|
||
return 0; |
||
} |
||
|
||
static int tvaudio_thread_ddep(void *data) |
||
{ |
||
struct saa7134_dev *dev = data; |
||
u32 value, norms; |
||
|
||
set_freezable(); |
||
for (;;) { |
||
tvaudio_sleep(dev,-1); |
||
if (kthread_should_stop()) |
||
goto done; |
||
restart: |
||
try_to_freeze(); |
||
|
||
dev->thread.scan1 = dev->thread.scan2; |
||
audio_dbg(1, "tvaudio thread scan start [%d]\n", |
||
dev->thread.scan1); |
||
|
||
if (audio_ddep >= 0x04 && audio_ddep <= 0x0e) { |
||
/* insmod option override */ |
||
norms = (audio_ddep << 2) | 0x01; |
||
audio_dbg(1, "ddep override: %s\n", |
||
stdres[audio_ddep]); |
||
} else if (&card(dev).radio == dev->input) { |
||
audio_dbg(1, "FM Radio\n"); |
||
if (dev->tuner_type == TUNER_PHILIPS_TDA8290) { |
||
norms = (0x11 << 2) | 0x01; |
||
/* set IF frequency to 5.5 MHz */ |
||
saa_dsp_writel(dev, 0x42c >> 2, 0x729555); |
||
} else { |
||
norms = (0x0f << 2) | 0x01; |
||
} |
||
} else { |
||
/* (let chip) scan for sound carrier */ |
||
norms = 0; |
||
if (dev->tvnorm->id & (V4L2_STD_B | V4L2_STD_GH)) |
||
norms |= 0x04; |
||
if (dev->tvnorm->id & V4L2_STD_PAL_I) |
||
norms |= 0x20; |
||
if (dev->tvnorm->id & V4L2_STD_DK) |
||
norms |= 0x08; |
||
if (dev->tvnorm->id & V4L2_STD_MN) |
||
norms |= 0x40; |
||
if (dev->tvnorm->id & (V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC)) |
||
norms |= 0x10; |
||
if (0 == norms) |
||
norms = 0x7c; /* all */ |
||
audio_dbg(1, "scanning:%s%s%s%s%s\n", |
||
(norms & 0x04) ? " B/G" : "", |
||
(norms & 0x08) ? " D/K" : "", |
||
(norms & 0x10) ? " L/L'" : "", |
||
(norms & 0x20) ? " I" : "", |
||
(norms & 0x40) ? " M" : ""); |
||
} |
||
|
||
/* kick automatic standard detection */ |
||
saa_dsp_writel(dev, 0x454 >> 2, 0); |
||
saa_dsp_writel(dev, 0x454 >> 2, norms | 0x80); |
||
|
||
/* setup crossbars */ |
||
saa_dsp_writel(dev, 0x464 >> 2, 0x000000); |
||
saa_dsp_writel(dev, 0x470 >> 2, 0x101010); |
||
|
||
if (tvaudio_sleep(dev,3000)) |
||
goto restart; |
||
value = saa_readl(0x528 >> 2) & 0xffffff; |
||
|
||
audio_dbg(1, "tvaudio thread status: 0x%x [%s%s%s]\n", |
||
value, stdres[value & 0x1f], |
||
(value & 0x000020) ? ",stereo" : "", |
||
(value & 0x000040) ? ",dual" : ""); |
||
audio_dbg(1, "detailed status: %s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s#%s\n", |
||
(value & 0x000080) ? " A2/EIAJ pilot tone " : "", |
||
(value & 0x000100) ? " A2/EIAJ dual " : "", |
||
(value & 0x000200) ? " A2/EIAJ stereo " : "", |
||
(value & 0x000400) ? " A2/EIAJ noise mute " : "", |
||
|
||
(value & 0x000800) ? " BTSC/FM radio pilot " : "", |
||
(value & 0x001000) ? " SAP carrier " : "", |
||
(value & 0x002000) ? " BTSC stereo noise mute " : "", |
||
(value & 0x004000) ? " SAP noise mute " : "", |
||
(value & 0x008000) ? " VDSP " : "", |
||
|
||
(value & 0x010000) ? " NICST " : "", |
||
(value & 0x020000) ? " NICDU " : "", |
||
(value & 0x040000) ? " NICAM muted " : "", |
||
(value & 0x080000) ? " NICAM reserve sound " : "", |
||
|
||
(value & 0x100000) ? " init done " : ""); |
||
} |
||
|
||
done: |
||
dev->thread.stopped = 1; |
||
return 0; |
||
} |
||
|
||
/* ------------------------------------------------------------------ */ |
||
/* common stuff + external entry points */ |
||
|
||
void saa7134_enable_i2s(struct saa7134_dev *dev) |
||
{ |
||
int i2s_format; |
||
|
||
if (!card_is_empress(dev)) |
||
return; |
||
|
||
if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130) |
||
return; |
||
|
||
/* configure GPIO for out */ |
||
saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, 0x0E000000, 0x00000000); |
||
|
||
switch (dev->pci->device) { |
||
case PCI_DEVICE_ID_PHILIPS_SAA7133: |
||
case PCI_DEVICE_ID_PHILIPS_SAA7135: |
||
/* Set I2S format (SONY) */ |
||
saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00); |
||
/* Start I2S */ |
||
saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11); |
||
break; |
||
|
||
case PCI_DEVICE_ID_PHILIPS_SAA7134: |
||
i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01; |
||
|
||
/* enable I2S audio output for the mpeg encoder */ |
||
saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80); |
||
saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format); |
||
saa_writeb(SAA7134_I2S_OUTPUT_LEVEL, 0x0F); |
||
saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x01); |
||
break; |
||
|
||
default: |
||
break; |
||
} |
||
} |
||
|
||
int saa7134_tvaudio_rx2mode(u32 rx) |
||
{ |
||
u32 mode; |
||
|
||
mode = V4L2_TUNER_MODE_MONO; |
||
if (rx & V4L2_TUNER_SUB_STEREO) |
||
mode = V4L2_TUNER_MODE_STEREO; |
||
else if (rx & V4L2_TUNER_SUB_LANG1) |
||
mode = V4L2_TUNER_MODE_LANG1; |
||
else if (rx & V4L2_TUNER_SUB_LANG2) |
||
mode = V4L2_TUNER_MODE_LANG2; |
||
return mode; |
||
} |
||
|
||
void saa7134_tvaudio_setmute(struct saa7134_dev *dev) |
||
{ |
||
switch (dev->pci->device) { |
||
case PCI_DEVICE_ID_PHILIPS_SAA7130: |
||
case PCI_DEVICE_ID_PHILIPS_SAA7134: |
||
mute_input_7134(dev); |
||
break; |
||
case PCI_DEVICE_ID_PHILIPS_SAA7133: |
||
case PCI_DEVICE_ID_PHILIPS_SAA7135: |
||
mute_input_7133(dev); |
||
break; |
||
} |
||
} |
||
|
||
void saa7134_tvaudio_setinput(struct saa7134_dev *dev, |
||
struct saa7134_input *in) |
||
{ |
||
dev->input = in; |
||
switch (dev->pci->device) { |
||
case PCI_DEVICE_ID_PHILIPS_SAA7130: |
||
case PCI_DEVICE_ID_PHILIPS_SAA7134: |
||
mute_input_7134(dev); |
||
break; |
||
case PCI_DEVICE_ID_PHILIPS_SAA7133: |
||
case PCI_DEVICE_ID_PHILIPS_SAA7135: |
||
mute_input_7133(dev); |
||
break; |
||
} |
||
saa7134_enable_i2s(dev); |
||
} |
||
|
||
void saa7134_tvaudio_setvolume(struct saa7134_dev *dev, int level) |
||
{ |
||
switch (dev->pci->device) { |
||
case PCI_DEVICE_ID_PHILIPS_SAA7134: |
||
saa_writeb(SAA7134_CHANNEL1_LEVEL, level & 0x1f); |
||
saa_writeb(SAA7134_CHANNEL2_LEVEL, level & 0x1f); |
||
saa_writeb(SAA7134_NICAM_LEVEL_ADJUST, level & 0x1f); |
||
break; |
||
} |
||
} |
||
|
||
int saa7134_tvaudio_getstereo(struct saa7134_dev *dev) |
||
{ |
||
int retval = V4L2_TUNER_SUB_MONO; |
||
|
||
switch (dev->pci->device) { |
||
case PCI_DEVICE_ID_PHILIPS_SAA7134: |
||
if (dev->tvaudio) |
||
retval = tvaudio_getstereo(dev,dev->tvaudio); |
||
break; |
||
case PCI_DEVICE_ID_PHILIPS_SAA7133: |
||
case PCI_DEVICE_ID_PHILIPS_SAA7135: |
||
retval = getstereo_7133(dev); |
||
break; |
||
} |
||
return retval; |
||
} |
||
|
||
void saa7134_tvaudio_init(struct saa7134_dev *dev) |
||
{ |
||
int clock = saa7134_boards[dev->board].audio_clock; |
||
|
||
if (UNSET != audio_clock_override) |
||
clock = audio_clock_override; |
||
|
||
switch (dev->pci->device) { |
||
case PCI_DEVICE_ID_PHILIPS_SAA7134: |
||
/* init all audio registers */ |
||
saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x00); |
||
if (need_resched()) |
||
schedule(); |
||
else |
||
udelay(10); |
||
|
||
saa_writeb(SAA7134_AUDIO_CLOCK0, clock & 0xff); |
||
saa_writeb(SAA7134_AUDIO_CLOCK1, (clock >> 8) & 0xff); |
||
saa_writeb(SAA7134_AUDIO_CLOCK2, (clock >> 16) & 0xff); |
||
/* frame locked audio is mandatory for NICAM */ |
||
saa_writeb(SAA7134_AUDIO_PLL_CTRL, 0x01); |
||
saa_writeb(SAA7134_NICAM_ERROR_LOW, 0x14); |
||
saa_writeb(SAA7134_NICAM_ERROR_HIGH, 0x50); |
||
break; |
||
case PCI_DEVICE_ID_PHILIPS_SAA7133: |
||
case PCI_DEVICE_ID_PHILIPS_SAA7135: |
||
saa_writel(0x598 >> 2, clock); |
||
saa_dsp_writel(dev, 0x474 >> 2, 0x00); |
||
saa_dsp_writel(dev, 0x450 >> 2, 0x00); |
||
} |
||
} |
||
|
||
int saa7134_tvaudio_init2(struct saa7134_dev *dev) |
||
{ |
||
int (*my_thread)(void *data) = NULL; |
||
|
||
switch (dev->pci->device) { |
||
case PCI_DEVICE_ID_PHILIPS_SAA7134: |
||
my_thread = tvaudio_thread; |
||
break; |
||
case PCI_DEVICE_ID_PHILIPS_SAA7133: |
||
case PCI_DEVICE_ID_PHILIPS_SAA7135: |
||
my_thread = tvaudio_thread_ddep; |
||
break; |
||
} |
||
|
||
dev->thread.thread = NULL; |
||
dev->thread.scan1 = dev->thread.scan2 = 0; |
||
if (my_thread) { |
||
saa7134_tvaudio_init(dev); |
||
/* start tvaudio thread */ |
||
dev->thread.thread = kthread_run(my_thread, dev, "%s", dev->name); |
||
if (IS_ERR(dev->thread.thread)) { |
||
pr_warn("%s: kernel_thread() failed\n", |
||
dev->name); |
||
/* XXX: missing error handling here */ |
||
} |
||
} |
||
|
||
saa7134_enable_i2s(dev); |
||
return 0; |
||
} |
||
|
||
int saa7134_tvaudio_close(struct saa7134_dev *dev) |
||
{ |
||
dev->automute = 1; |
||
/* anything else to undo? */ |
||
return 0; |
||
} |
||
|
||
int saa7134_tvaudio_fini(struct saa7134_dev *dev) |
||
{ |
||
/* shutdown tvaudio thread */ |
||
if (dev->thread.thread && !dev->thread.stopped) |
||
kthread_stop(dev->thread.thread); |
||
|
||
saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x07, 0x00); /* LINE1 */ |
||
return 0; |
||
} |
||
|
||
int saa7134_tvaudio_do_scan(struct saa7134_dev *dev) |
||
{ |
||
if (dev->input->amux != TV) { |
||
audio_dbg(1, "sound IF not in use, skipping scan\n"); |
||
dev->automute = 0; |
||
saa7134_tvaudio_setmute(dev); |
||
} else if (dev->thread.thread) { |
||
dev->thread.mode = UNSET; |
||
dev->thread.scan2++; |
||
|
||
if (!dev->insuspend && !dev->thread.stopped) |
||
wake_up_process(dev->thread.thread); |
||
} else { |
||
dev->automute = 0; |
||
saa7134_tvaudio_setmute(dev); |
||
} |
||
return 0; |
||
} |
||
|
||
EXPORT_SYMBOL(saa_dsp_writel); |
||
EXPORT_SYMBOL(saa7134_tvaudio_setmute);
|
||
|