1078 lines
28 KiB
C
1078 lines
28 KiB
C
/*
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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 <kraxel@bytesex.org> [SuSE Labs]
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "saa7134.h"
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#include "saa7134-reg.h"
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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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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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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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static int audio_clock_override = UNSET;
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module_param(audio_clock_override, int, 0644);
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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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#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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/* 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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/* saa7134 code */
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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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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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static u32 tvaudio_carr2reg(u32 carrier)
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{
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u64 a = carrier;
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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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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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#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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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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/* 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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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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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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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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/* 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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/* switch gpio-connected external audio mux */
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if (0 == card(dev).gpiomask)
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return;
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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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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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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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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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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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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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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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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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if (!(dev->tvnorm->id & scan->std)) {
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value = 0;
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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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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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tvaudio_setcarrier(dev,scan->carr+90,scan->carr+90);
|
||
saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
|
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if (tvaudio_sleep(dev,SCAN_SAMPLE_DELAY))
|
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return -1;
|
||
right = saa_readl(SAA7134_LEVEL_READOUT1 >> 2);
|
||
|
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left >>= 16;
|
||
right >>= 16;
|
||
value = left > right ? left - right : right - left;
|
||
audio_dbg(1, "scanning %d.%03d MHz [%4s] => dc is %5d [%d/%d]\n",
|
||
scan->carr / 1000, scan->carr % 1000,
|
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scan->name, value, left, right);
|
||
return value;
|
||
}
|
||
|
||
|
||
static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio)
|
||
{
|
||
__u32 idp, nicam, nicam_status;
|
||
int retval = -1;
|
||
|
||
switch (audio->mode) {
|
||
case TVAUDIO_FM_MONO:
|
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return V4L2_TUNER_SUB_MONO;
|
||
case TVAUDIO_FM_K_STEREO:
|
||
case TVAUDIO_FM_BG_STEREO:
|
||
idp = (saa_readb(SAA7134_IDENT_SIF) & 0xe0) >> 5;
|
||
audio_dbg(1, "getstereo: fm/stereo: idp=0x%x\n", idp);
|
||
if (0x03 == (idp & 0x03))
|
||
retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
|
||
else if (0x05 == (idp & 0x05))
|
||
retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
|
||
else if (0x01 == (idp & 0x01))
|
||
retval = V4L2_TUNER_SUB_MONO;
|
||
break;
|
||
case TVAUDIO_FM_SAT_STEREO:
|
||
/* not implemented (yet) */
|
||
break;
|
||
case TVAUDIO_NICAM_FM:
|
||
case TVAUDIO_NICAM_AM:
|
||
nicam = saa_readb(SAA7134_AUDIO_STATUS);
|
||
audio_dbg(1, "getstereo: nicam=0x%x\n", nicam);
|
||
if (nicam & 0x1) {
|
||
nicam_status = saa_readb(SAA7134_NICAM_STATUS);
|
||
audio_dbg(1, "getstereo: nicam_status=0x%x\n",
|
||
nicam_status);
|
||
|
||
switch (nicam_status & 0x03) {
|
||
case 0x01:
|
||
retval = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
|
||
break;
|
||
case 0x02:
|
||
retval = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
|
||
break;
|
||
default:
|
||
retval = V4L2_TUNER_SUB_MONO;
|
||
}
|
||
} else {
|
||
/* No nicam detected */
|
||
}
|
||
break;
|
||
}
|
||
if (retval != -1)
|
||
audio_dbg(1, "found audio subchannels:%s%s%s%s\n",
|
||
(retval & V4L2_TUNER_SUB_MONO) ? " mono" : "",
|
||
(retval & V4L2_TUNER_SUB_STEREO) ? " stereo" : "",
|
||
(retval & V4L2_TUNER_SUB_LANG1) ? " lang1" : "",
|
||
(retval & V4L2_TUNER_SUB_LANG2) ? " lang2" : "");
|
||
return retval;
|
||
}
|
||
|
||
static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *audio,
|
||
u32 mode)
|
||
{
|
||
static char *name[] = {
|
||
[ V4L2_TUNER_MODE_MONO ] = "mono",
|
||
[ V4L2_TUNER_MODE_STEREO ] = "stereo",
|
||
[ V4L2_TUNER_MODE_LANG1 ] = "lang1",
|
||
[ V4L2_TUNER_MODE_LANG2 ] = "lang2",
|
||
[ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2",
|
||
};
|
||
static u32 fm[] = {
|
||
[ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
|
||
[ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
|
||
[ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
|
||
[ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
|
||
[ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */
|
||
};
|
||
u32 reg;
|
||
|
||
switch (audio->mode) {
|
||
case TVAUDIO_FM_MONO:
|
||
/* nothing to do ... */
|
||
break;
|
||
case TVAUDIO_FM_K_STEREO:
|
||
case TVAUDIO_FM_BG_STEREO:
|
||
case TVAUDIO_NICAM_AM:
|
||
case TVAUDIO_NICAM_FM:
|
||
audio_dbg(1, "setstereo [fm] => %s\n",
|
||
name[mode % ARRAY_SIZE(name)]);
|
||
reg = fm[ mode % ARRAY_SIZE(fm) ];
|
||
saa_writeb(SAA7134_FM_DEMATRIX, reg);
|
||
break;
|
||
case TVAUDIO_FM_SAT_STEREO:
|
||
/* Not implemented */
|
||
break;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static int tvaudio_thread(void *data)
|
||
{
|
||
struct saa7134_dev *dev = data;
|
||
int carr_vals[ARRAY_SIZE(mainscan)];
|
||
unsigned int i, audio, nscan;
|
||
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);
|
||
|
||
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);
|