1047 lines
28 KiB
C
1047 lines
28 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* cx88x-audio.c - Conexant CX23880/23881 audio downstream driver driver
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*
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* (c) 2001 Michael Eskin, Tom Zakrajsek [Windows version]
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* (c) 2002 Yurij Sysoev <yurij@naturesoft.net>
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* (c) 2003 Gerd Knorr <kraxel@bytesex.org>
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*
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* -----------------------------------------------------------------------
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*
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* Lot of voodoo here. Even the data sheet doesn't help to
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* understand what is going on here, the documentation for the audio
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* part of the cx2388x chip is *very* bad.
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*
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* Some of this comes from party done linux driver sources I got from
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* [undocumented].
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*
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* Some comes from the dscaler sources, one of the dscaler driver guy works
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* for Conexant ...
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*
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* -----------------------------------------------------------------------
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*/
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#include "cx88.h"
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/freezer.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/poll.h>
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#include <linux/signal.h>
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#include <linux/ioport.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/vmalloc.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/kthread.h>
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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 [audio]");
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static unsigned int always_analog;
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module_param(always_analog, int, 0644);
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MODULE_PARM_DESC(always_analog, "force analog audio out");
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static unsigned int radio_deemphasis;
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module_param(radio_deemphasis, int, 0644);
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MODULE_PARM_DESC(radio_deemphasis,
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"Radio deemphasis time constant, 0=None, 1=50us (elsewhere), 2=75us (USA)");
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#define dprintk(fmt, arg...) do { \
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if (audio_debug) \
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printk(KERN_DEBUG pr_fmt("%s: tvaudio:" fmt), \
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__func__, ##arg); \
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} while (0)
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/* ----------------------------------------------------------- */
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static const char * const aud_ctl_names[64] = {
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[EN_BTSC_FORCE_MONO] = "BTSC_FORCE_MONO",
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[EN_BTSC_FORCE_STEREO] = "BTSC_FORCE_STEREO",
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[EN_BTSC_FORCE_SAP] = "BTSC_FORCE_SAP",
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[EN_BTSC_AUTO_STEREO] = "BTSC_AUTO_STEREO",
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[EN_BTSC_AUTO_SAP] = "BTSC_AUTO_SAP",
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[EN_A2_FORCE_MONO1] = "A2_FORCE_MONO1",
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[EN_A2_FORCE_MONO2] = "A2_FORCE_MONO2",
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[EN_A2_FORCE_STEREO] = "A2_FORCE_STEREO",
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[EN_A2_AUTO_MONO2] = "A2_AUTO_MONO2",
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[EN_A2_AUTO_STEREO] = "A2_AUTO_STEREO",
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[EN_EIAJ_FORCE_MONO1] = "EIAJ_FORCE_MONO1",
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[EN_EIAJ_FORCE_MONO2] = "EIAJ_FORCE_MONO2",
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[EN_EIAJ_FORCE_STEREO] = "EIAJ_FORCE_STEREO",
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[EN_EIAJ_AUTO_MONO2] = "EIAJ_AUTO_MONO2",
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[EN_EIAJ_AUTO_STEREO] = "EIAJ_AUTO_STEREO",
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[EN_NICAM_FORCE_MONO1] = "NICAM_FORCE_MONO1",
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[EN_NICAM_FORCE_MONO2] = "NICAM_FORCE_MONO2",
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[EN_NICAM_FORCE_STEREO] = "NICAM_FORCE_STEREO",
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[EN_NICAM_AUTO_MONO2] = "NICAM_AUTO_MONO2",
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[EN_NICAM_AUTO_STEREO] = "NICAM_AUTO_STEREO",
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[EN_FMRADIO_FORCE_MONO] = "FMRADIO_FORCE_MONO",
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[EN_FMRADIO_FORCE_STEREO] = "FMRADIO_FORCE_STEREO",
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[EN_FMRADIO_AUTO_STEREO] = "FMRADIO_AUTO_STEREO",
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};
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struct rlist {
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u32 reg;
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u32 val;
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};
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static void set_audio_registers(struct cx88_core *core, const struct rlist *l)
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{
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int i;
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for (i = 0; l[i].reg; i++) {
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switch (l[i].reg) {
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case AUD_PDF_DDS_CNST_BYTE2:
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case AUD_PDF_DDS_CNST_BYTE1:
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case AUD_PDF_DDS_CNST_BYTE0:
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case AUD_QAM_MODE:
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case AUD_PHACC_FREQ_8MSB:
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case AUD_PHACC_FREQ_8LSB:
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cx_writeb(l[i].reg, l[i].val);
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break;
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default:
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cx_write(l[i].reg, l[i].val);
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break;
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}
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}
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}
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static void set_audio_start(struct cx88_core *core, u32 mode)
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{
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/* mute */
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cx_write(AUD_VOL_CTL, (1 << 6));
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/* start programming */
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cx_write(AUD_INIT, mode);
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cx_write(AUD_INIT_LD, 0x0001);
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cx_write(AUD_SOFT_RESET, 0x0001);
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}
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static void set_audio_finish(struct cx88_core *core, u32 ctl)
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{
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u32 volume;
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/* restart dma; This avoids buzz in NICAM and is good in others */
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cx88_stop_audio_dma(core);
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cx_write(AUD_RATE_THRES_DMD, 0x000000C0);
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cx88_start_audio_dma(core);
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if (core->board.mpeg & CX88_MPEG_BLACKBIRD) {
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cx_write(AUD_I2SINPUTCNTL, 4);
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cx_write(AUD_BAUDRATE, 1);
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/*
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* 'pass-thru mode': this enables the i2s
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* output to the mpeg encoder
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*/
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cx_set(AUD_CTL, EN_I2SOUT_ENABLE);
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cx_write(AUD_I2SOUTPUTCNTL, 1);
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cx_write(AUD_I2SCNTL, 0);
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/* cx_write(AUD_APB_IN_RATE_ADJ, 0); */
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}
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if ((always_analog) || (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))) {
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ctl |= EN_DAC_ENABLE;
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cx_write(AUD_CTL, ctl);
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}
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/* finish programming */
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cx_write(AUD_SOFT_RESET, 0x0000);
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/* unmute */
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volume = cx_sread(SHADOW_AUD_VOL_CTL);
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cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, volume);
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core->last_change = jiffies;
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}
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/* ----------------------------------------------------------- */
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static void set_audio_standard_BTSC(struct cx88_core *core, unsigned int sap,
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u32 mode)
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{
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static const struct rlist btsc[] = {
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{AUD_AFE_12DB_EN, 0x00000001},
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{AUD_OUT1_SEL, 0x00000013},
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{AUD_OUT1_SHIFT, 0x00000000},
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{AUD_POLY0_DDS_CONSTANT, 0x0012010c},
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{AUD_DMD_RA_DDS, 0x00c3e7aa},
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{AUD_DBX_IN_GAIN, 0x00004734},
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{AUD_DBX_WBE_GAIN, 0x00004640},
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{AUD_DBX_SE_GAIN, 0x00008d31},
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{AUD_DCOC_0_SRC, 0x0000001a},
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{AUD_IIR1_4_SEL, 0x00000021},
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{AUD_DCOC_PASS_IN, 0x00000003},
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{AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
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{AUD_DCOC_0_SHIFT_IN1, 0x00000008},
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{AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
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{AUD_DCOC_1_SHIFT_IN1, 0x00000008},
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{AUD_DN0_FREQ, 0x0000283b},
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{AUD_DN2_SRC_SEL, 0x00000008},
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{AUD_DN2_FREQ, 0x00003000},
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{AUD_DN2_AFC, 0x00000002},
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{AUD_DN2_SHFT, 0x00000000},
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{AUD_IIR2_2_SEL, 0x00000020},
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{AUD_IIR2_2_SHIFT, 0x00000000},
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{AUD_IIR2_3_SEL, 0x0000001f},
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{AUD_IIR2_3_SHIFT, 0x00000000},
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{AUD_CRDC1_SRC_SEL, 0x000003ce},
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{AUD_CRDC1_SHIFT, 0x00000000},
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{AUD_CORDIC_SHIFT_1, 0x00000007},
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{AUD_DCOC_1_SRC, 0x0000001b},
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{AUD_DCOC1_SHIFT, 0x00000000},
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{AUD_RDSI_SEL, 0x00000008},
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{AUD_RDSQ_SEL, 0x00000008},
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{AUD_RDSI_SHIFT, 0x00000000},
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{AUD_RDSQ_SHIFT, 0x00000000},
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{AUD_POLYPH80SCALEFAC, 0x00000003},
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{ /* end of list */ },
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};
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static const struct rlist btsc_sap[] = {
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{AUD_AFE_12DB_EN, 0x00000001},
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{AUD_DBX_IN_GAIN, 0x00007200},
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{AUD_DBX_WBE_GAIN, 0x00006200},
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{AUD_DBX_SE_GAIN, 0x00006200},
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{AUD_IIR1_1_SEL, 0x00000000},
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{AUD_IIR1_3_SEL, 0x00000001},
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{AUD_DN1_SRC_SEL, 0x00000007},
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{AUD_IIR1_4_SHIFT, 0x00000006},
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{AUD_IIR2_1_SHIFT, 0x00000000},
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{AUD_IIR2_2_SHIFT, 0x00000000},
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{AUD_IIR3_0_SHIFT, 0x00000000},
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{AUD_IIR3_1_SHIFT, 0x00000000},
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{AUD_IIR3_0_SEL, 0x0000000d},
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{AUD_IIR3_1_SEL, 0x0000000e},
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{AUD_DEEMPH1_SRC_SEL, 0x00000014},
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{AUD_DEEMPH1_SHIFT, 0x00000000},
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{AUD_DEEMPH1_G0, 0x00004000},
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{AUD_DEEMPH1_A0, 0x00000000},
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{AUD_DEEMPH1_B0, 0x00000000},
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{AUD_DEEMPH1_A1, 0x00000000},
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{AUD_DEEMPH1_B1, 0x00000000},
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{AUD_OUT0_SEL, 0x0000003f},
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{AUD_OUT1_SEL, 0x0000003f},
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{AUD_DN1_AFC, 0x00000002},
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{AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
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{AUD_DCOC_0_SHIFT_IN1, 0x00000008},
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{AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
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{AUD_DCOC_1_SHIFT_IN1, 0x00000008},
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{AUD_IIR1_0_SEL, 0x0000001d},
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{AUD_IIR1_2_SEL, 0x0000001e},
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{AUD_IIR2_1_SEL, 0x00000002},
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{AUD_IIR2_2_SEL, 0x00000004},
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{AUD_IIR3_2_SEL, 0x0000000f},
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{AUD_DCOC2_SHIFT, 0x00000001},
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{AUD_IIR3_2_SHIFT, 0x00000001},
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{AUD_DEEMPH0_SRC_SEL, 0x00000014},
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{AUD_CORDIC_SHIFT_1, 0x00000006},
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{AUD_POLY0_DDS_CONSTANT, 0x000e4db2},
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{AUD_DMD_RA_DDS, 0x00f696e6},
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{AUD_IIR2_3_SEL, 0x00000025},
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{AUD_IIR1_4_SEL, 0x00000021},
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{AUD_DN1_FREQ, 0x0000c965},
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{AUD_DCOC_PASS_IN, 0x00000003},
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{AUD_DCOC_0_SRC, 0x0000001a},
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{AUD_DCOC_1_SRC, 0x0000001b},
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{AUD_DCOC1_SHIFT, 0x00000000},
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{AUD_RDSI_SEL, 0x00000009},
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{AUD_RDSQ_SEL, 0x00000009},
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{AUD_RDSI_SHIFT, 0x00000000},
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{AUD_RDSQ_SHIFT, 0x00000000},
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{AUD_POLYPH80SCALEFAC, 0x00000003},
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{ /* end of list */ },
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};
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mode |= EN_FMRADIO_EN_RDS;
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if (sap) {
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dprintk("%s SAP (status: unknown)\n", __func__);
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set_audio_start(core, SEL_SAP);
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set_audio_registers(core, btsc_sap);
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set_audio_finish(core, mode);
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} else {
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dprintk("%s (status: known-good)\n", __func__);
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set_audio_start(core, SEL_BTSC);
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set_audio_registers(core, btsc);
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set_audio_finish(core, mode);
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}
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}
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static void set_audio_standard_NICAM(struct cx88_core *core, u32 mode)
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{
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static const struct rlist nicam_l[] = {
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{AUD_AFE_12DB_EN, 0x00000001},
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{AUD_RATE_ADJ1, 0x00000060},
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{AUD_RATE_ADJ2, 0x000000F9},
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{AUD_RATE_ADJ3, 0x000001CC},
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{AUD_RATE_ADJ4, 0x000002B3},
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{AUD_RATE_ADJ5, 0x00000726},
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{AUD_DEEMPHDENOM1_R, 0x0000F3D0},
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{AUD_DEEMPHDENOM2_R, 0x00000000},
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{AUD_ERRLOGPERIOD_R, 0x00000064},
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{AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF},
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{AUD_ERRINTRPTTHSHLD2_R, 0x0000001F},
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{AUD_ERRINTRPTTHSHLD3_R, 0x0000000F},
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{AUD_POLYPH80SCALEFAC, 0x00000003},
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{AUD_DMD_RA_DDS, 0x00C00000},
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{AUD_PLL_INT, 0x0000001E},
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{AUD_PLL_DDS, 0x00000000},
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{AUD_PLL_FRAC, 0x0000E542},
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{AUD_START_TIMER, 0x00000000},
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{AUD_DEEMPHNUMER1_R, 0x000353DE},
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{AUD_DEEMPHNUMER2_R, 0x000001B1},
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{AUD_PDF_DDS_CNST_BYTE2, 0x06},
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{AUD_PDF_DDS_CNST_BYTE1, 0x82},
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{AUD_PDF_DDS_CNST_BYTE0, 0x12},
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{AUD_QAM_MODE, 0x05},
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{AUD_PHACC_FREQ_8MSB, 0x34},
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{AUD_PHACC_FREQ_8LSB, 0x4C},
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{AUD_DEEMPHGAIN_R, 0x00006680},
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{AUD_RATE_THRES_DMD, 0x000000C0},
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{ /* end of list */ },
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};
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static const struct rlist nicam_bgdki_common[] = {
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{AUD_AFE_12DB_EN, 0x00000001},
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{AUD_RATE_ADJ1, 0x00000010},
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{AUD_RATE_ADJ2, 0x00000040},
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{AUD_RATE_ADJ3, 0x00000100},
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{AUD_RATE_ADJ4, 0x00000400},
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{AUD_RATE_ADJ5, 0x00001000},
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{AUD_ERRLOGPERIOD_R, 0x00000fff},
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{AUD_ERRINTRPTTHSHLD1_R, 0x000003ff},
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{AUD_ERRINTRPTTHSHLD2_R, 0x000000ff},
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{AUD_ERRINTRPTTHSHLD3_R, 0x0000003f},
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{AUD_POLYPH80SCALEFAC, 0x00000003},
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{AUD_DEEMPHGAIN_R, 0x000023c2},
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{AUD_DEEMPHNUMER1_R, 0x0002a7bc},
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{AUD_DEEMPHNUMER2_R, 0x0003023e},
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{AUD_DEEMPHDENOM1_R, 0x0000f3d0},
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{AUD_DEEMPHDENOM2_R, 0x00000000},
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{AUD_PDF_DDS_CNST_BYTE2, 0x06},
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{AUD_PDF_DDS_CNST_BYTE1, 0x82},
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{AUD_QAM_MODE, 0x05},
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{ /* end of list */ },
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};
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static const struct rlist nicam_i[] = {
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{AUD_PDF_DDS_CNST_BYTE0, 0x12},
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{AUD_PHACC_FREQ_8MSB, 0x3a},
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{AUD_PHACC_FREQ_8LSB, 0x93},
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{ /* end of list */ },
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};
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static const struct rlist nicam_default[] = {
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{AUD_PDF_DDS_CNST_BYTE0, 0x16},
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{AUD_PHACC_FREQ_8MSB, 0x34},
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{AUD_PHACC_FREQ_8LSB, 0x4c},
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{ /* end of list */ },
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};
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set_audio_start(core, SEL_NICAM);
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switch (core->tvaudio) {
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case WW_L:
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dprintk("%s SECAM-L NICAM (status: devel)\n", __func__);
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set_audio_registers(core, nicam_l);
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break;
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case WW_I:
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dprintk("%s PAL-I NICAM (status: known-good)\n", __func__);
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set_audio_registers(core, nicam_bgdki_common);
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set_audio_registers(core, nicam_i);
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break;
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case WW_NONE:
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case WW_BTSC:
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case WW_BG:
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case WW_DK:
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case WW_EIAJ:
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case WW_I2SPT:
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case WW_FM:
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case WW_I2SADC:
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case WW_M:
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dprintk("%s PAL-BGDK NICAM (status: known-good)\n", __func__);
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set_audio_registers(core, nicam_bgdki_common);
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set_audio_registers(core, nicam_default);
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break;
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}
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mode |= EN_DMTRX_LR | EN_DMTRX_BYPASS;
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set_audio_finish(core, mode);
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}
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static void set_audio_standard_A2(struct cx88_core *core, u32 mode)
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{
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static const struct rlist a2_bgdk_common[] = {
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{AUD_ERRLOGPERIOD_R, 0x00000064},
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{AUD_ERRINTRPTTHSHLD1_R, 0x00000fff},
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{AUD_ERRINTRPTTHSHLD2_R, 0x0000001f},
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{AUD_ERRINTRPTTHSHLD3_R, 0x0000000f},
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{AUD_PDF_DDS_CNST_BYTE2, 0x06},
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{AUD_PDF_DDS_CNST_BYTE1, 0x82},
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{AUD_PDF_DDS_CNST_BYTE0, 0x12},
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{AUD_QAM_MODE, 0x05},
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{AUD_PHACC_FREQ_8MSB, 0x34},
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{AUD_PHACC_FREQ_8LSB, 0x4c},
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{AUD_RATE_ADJ1, 0x00000100},
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{AUD_RATE_ADJ2, 0x00000200},
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{AUD_RATE_ADJ3, 0x00000300},
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{AUD_RATE_ADJ4, 0x00000400},
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{AUD_RATE_ADJ5, 0x00000500},
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{AUD_THR_FR, 0x00000000},
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{AAGC_HYST, 0x0000001a},
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{AUD_PILOT_BQD_1_K0, 0x0000755b},
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{AUD_PILOT_BQD_1_K1, 0x00551340},
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{AUD_PILOT_BQD_1_K2, 0x006d30be},
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{AUD_PILOT_BQD_1_K3, 0xffd394af},
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{AUD_PILOT_BQD_1_K4, 0x00400000},
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{AUD_PILOT_BQD_2_K0, 0x00040000},
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{AUD_PILOT_BQD_2_K1, 0x002a4841},
|
|
{AUD_PILOT_BQD_2_K2, 0x00400000},
|
|
{AUD_PILOT_BQD_2_K3, 0x00000000},
|
|
{AUD_PILOT_BQD_2_K4, 0x00000000},
|
|
{AUD_MODE_CHG_TIMER, 0x00000040},
|
|
{AUD_AFE_12DB_EN, 0x00000001},
|
|
{AUD_CORDIC_SHIFT_0, 0x00000007},
|
|
{AUD_CORDIC_SHIFT_1, 0x00000007},
|
|
{AUD_DEEMPH0_G0, 0x00000380},
|
|
{AUD_DEEMPH1_G0, 0x00000380},
|
|
{AUD_DCOC_0_SRC, 0x0000001a},
|
|
{AUD_DCOC0_SHIFT, 0x00000000},
|
|
{AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
|
|
{AUD_DCOC_0_SHIFT_IN1, 0x00000008},
|
|
{AUD_DCOC_PASS_IN, 0x00000003},
|
|
{AUD_IIR3_0_SEL, 0x00000021},
|
|
{AUD_DN2_AFC, 0x00000002},
|
|
{AUD_DCOC_1_SRC, 0x0000001b},
|
|
{AUD_DCOC1_SHIFT, 0x00000000},
|
|
{AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
|
|
{AUD_DCOC_1_SHIFT_IN1, 0x00000008},
|
|
{AUD_IIR3_1_SEL, 0x00000023},
|
|
{AUD_RDSI_SEL, 0x00000017},
|
|
{AUD_RDSI_SHIFT, 0x00000000},
|
|
{AUD_RDSQ_SEL, 0x00000017},
|
|
{AUD_RDSQ_SHIFT, 0x00000000},
|
|
{AUD_PLL_INT, 0x0000001e},
|
|
{AUD_PLL_DDS, 0x00000000},
|
|
{AUD_PLL_FRAC, 0x0000e542},
|
|
{AUD_POLYPH80SCALEFAC, 0x00000001},
|
|
{AUD_START_TIMER, 0x00000000},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
static const struct rlist a2_bg[] = {
|
|
{AUD_DMD_RA_DDS, 0x002a4f2f},
|
|
{AUD_C1_UP_THR, 0x00007000},
|
|
{AUD_C1_LO_THR, 0x00005400},
|
|
{AUD_C2_UP_THR, 0x00005400},
|
|
{AUD_C2_LO_THR, 0x00003000},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
static const struct rlist a2_dk[] = {
|
|
{AUD_DMD_RA_DDS, 0x002a4f2f},
|
|
{AUD_C1_UP_THR, 0x00007000},
|
|
{AUD_C1_LO_THR, 0x00005400},
|
|
{AUD_C2_UP_THR, 0x00005400},
|
|
{AUD_C2_LO_THR, 0x00003000},
|
|
{AUD_DN0_FREQ, 0x00003a1c},
|
|
{AUD_DN2_FREQ, 0x0000d2e0},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
static const struct rlist a1_i[] = {
|
|
{AUD_ERRLOGPERIOD_R, 0x00000064},
|
|
{AUD_ERRINTRPTTHSHLD1_R, 0x00000fff},
|
|
{AUD_ERRINTRPTTHSHLD2_R, 0x0000001f},
|
|
{AUD_ERRINTRPTTHSHLD3_R, 0x0000000f},
|
|
{AUD_PDF_DDS_CNST_BYTE2, 0x06},
|
|
{AUD_PDF_DDS_CNST_BYTE1, 0x82},
|
|
{AUD_PDF_DDS_CNST_BYTE0, 0x12},
|
|
{AUD_QAM_MODE, 0x05},
|
|
{AUD_PHACC_FREQ_8MSB, 0x3a},
|
|
{AUD_PHACC_FREQ_8LSB, 0x93},
|
|
{AUD_DMD_RA_DDS, 0x002a4f2f},
|
|
{AUD_PLL_INT, 0x0000001e},
|
|
{AUD_PLL_DDS, 0x00000004},
|
|
{AUD_PLL_FRAC, 0x0000e542},
|
|
{AUD_RATE_ADJ1, 0x00000100},
|
|
{AUD_RATE_ADJ2, 0x00000200},
|
|
{AUD_RATE_ADJ3, 0x00000300},
|
|
{AUD_RATE_ADJ4, 0x00000400},
|
|
{AUD_RATE_ADJ5, 0x00000500},
|
|
{AUD_THR_FR, 0x00000000},
|
|
{AUD_PILOT_BQD_1_K0, 0x0000755b},
|
|
{AUD_PILOT_BQD_1_K1, 0x00551340},
|
|
{AUD_PILOT_BQD_1_K2, 0x006d30be},
|
|
{AUD_PILOT_BQD_1_K3, 0xffd394af},
|
|
{AUD_PILOT_BQD_1_K4, 0x00400000},
|
|
{AUD_PILOT_BQD_2_K0, 0x00040000},
|
|
{AUD_PILOT_BQD_2_K1, 0x002a4841},
|
|
{AUD_PILOT_BQD_2_K2, 0x00400000},
|
|
{AUD_PILOT_BQD_2_K3, 0x00000000},
|
|
{AUD_PILOT_BQD_2_K4, 0x00000000},
|
|
{AUD_MODE_CHG_TIMER, 0x00000060},
|
|
{AUD_AFE_12DB_EN, 0x00000001},
|
|
{AAGC_HYST, 0x0000000a},
|
|
{AUD_CORDIC_SHIFT_0, 0x00000007},
|
|
{AUD_CORDIC_SHIFT_1, 0x00000007},
|
|
{AUD_C1_UP_THR, 0x00007000},
|
|
{AUD_C1_LO_THR, 0x00005400},
|
|
{AUD_C2_UP_THR, 0x00005400},
|
|
{AUD_C2_LO_THR, 0x00003000},
|
|
{AUD_DCOC_0_SRC, 0x0000001a},
|
|
{AUD_DCOC0_SHIFT, 0x00000000},
|
|
{AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
|
|
{AUD_DCOC_0_SHIFT_IN1, 0x00000008},
|
|
{AUD_DCOC_PASS_IN, 0x00000003},
|
|
{AUD_IIR3_0_SEL, 0x00000021},
|
|
{AUD_DN2_AFC, 0x00000002},
|
|
{AUD_DCOC_1_SRC, 0x0000001b},
|
|
{AUD_DCOC1_SHIFT, 0x00000000},
|
|
{AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
|
|
{AUD_DCOC_1_SHIFT_IN1, 0x00000008},
|
|
{AUD_IIR3_1_SEL, 0x00000023},
|
|
{AUD_DN0_FREQ, 0x000035a3},
|
|
{AUD_DN2_FREQ, 0x000029c7},
|
|
{AUD_CRDC0_SRC_SEL, 0x00000511},
|
|
{AUD_IIR1_0_SEL, 0x00000001},
|
|
{AUD_IIR1_1_SEL, 0x00000000},
|
|
{AUD_IIR3_2_SEL, 0x00000003},
|
|
{AUD_IIR3_2_SHIFT, 0x00000000},
|
|
{AUD_IIR3_0_SEL, 0x00000002},
|
|
{AUD_IIR2_0_SEL, 0x00000021},
|
|
{AUD_IIR2_0_SHIFT, 0x00000002},
|
|
{AUD_DEEMPH0_SRC_SEL, 0x0000000b},
|
|
{AUD_DEEMPH1_SRC_SEL, 0x0000000b},
|
|
{AUD_POLYPH80SCALEFAC, 0x00000001},
|
|
{AUD_START_TIMER, 0x00000000},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
static const struct rlist am_l[] = {
|
|
{AUD_ERRLOGPERIOD_R, 0x00000064},
|
|
{AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF},
|
|
{AUD_ERRINTRPTTHSHLD2_R, 0x0000001F},
|
|
{AUD_ERRINTRPTTHSHLD3_R, 0x0000000F},
|
|
{AUD_PDF_DDS_CNST_BYTE2, 0x48},
|
|
{AUD_PDF_DDS_CNST_BYTE1, 0x3D},
|
|
{AUD_QAM_MODE, 0x00},
|
|
{AUD_PDF_DDS_CNST_BYTE0, 0xf5},
|
|
{AUD_PHACC_FREQ_8MSB, 0x3a},
|
|
{AUD_PHACC_FREQ_8LSB, 0x4a},
|
|
{AUD_DEEMPHGAIN_R, 0x00006680},
|
|
{AUD_DEEMPHNUMER1_R, 0x000353DE},
|
|
{AUD_DEEMPHNUMER2_R, 0x000001B1},
|
|
{AUD_DEEMPHDENOM1_R, 0x0000F3D0},
|
|
{AUD_DEEMPHDENOM2_R, 0x00000000},
|
|
{AUD_FM_MODE_ENABLE, 0x00000007},
|
|
{AUD_POLYPH80SCALEFAC, 0x00000003},
|
|
{AUD_AFE_12DB_EN, 0x00000001},
|
|
{AAGC_GAIN, 0x00000000},
|
|
{AAGC_HYST, 0x00000018},
|
|
{AAGC_DEF, 0x00000020},
|
|
{AUD_DN0_FREQ, 0x00000000},
|
|
{AUD_POLY0_DDS_CONSTANT, 0x000E4DB2},
|
|
{AUD_DCOC_0_SRC, 0x00000021},
|
|
{AUD_IIR1_0_SEL, 0x00000000},
|
|
{AUD_IIR1_0_SHIFT, 0x00000007},
|
|
{AUD_IIR1_1_SEL, 0x00000002},
|
|
{AUD_IIR1_1_SHIFT, 0x00000000},
|
|
{AUD_DCOC_1_SRC, 0x00000003},
|
|
{AUD_DCOC1_SHIFT, 0x00000000},
|
|
{AUD_DCOC_PASS_IN, 0x00000000},
|
|
{AUD_IIR1_2_SEL, 0x00000023},
|
|
{AUD_IIR1_2_SHIFT, 0x00000000},
|
|
{AUD_IIR1_3_SEL, 0x00000004},
|
|
{AUD_IIR1_3_SHIFT, 0x00000007},
|
|
{AUD_IIR1_4_SEL, 0x00000005},
|
|
{AUD_IIR1_4_SHIFT, 0x00000007},
|
|
{AUD_IIR3_0_SEL, 0x00000007},
|
|
{AUD_IIR3_0_SHIFT, 0x00000000},
|
|
{AUD_DEEMPH0_SRC_SEL, 0x00000011},
|
|
{AUD_DEEMPH0_SHIFT, 0x00000000},
|
|
{AUD_DEEMPH0_G0, 0x00007000},
|
|
{AUD_DEEMPH0_A0, 0x00000000},
|
|
{AUD_DEEMPH0_B0, 0x00000000},
|
|
{AUD_DEEMPH0_A1, 0x00000000},
|
|
{AUD_DEEMPH0_B1, 0x00000000},
|
|
{AUD_DEEMPH1_SRC_SEL, 0x00000011},
|
|
{AUD_DEEMPH1_SHIFT, 0x00000000},
|
|
{AUD_DEEMPH1_G0, 0x00007000},
|
|
{AUD_DEEMPH1_A0, 0x00000000},
|
|
{AUD_DEEMPH1_B0, 0x00000000},
|
|
{AUD_DEEMPH1_A1, 0x00000000},
|
|
{AUD_DEEMPH1_B1, 0x00000000},
|
|
{AUD_OUT0_SEL, 0x0000003F},
|
|
{AUD_OUT1_SEL, 0x0000003F},
|
|
{AUD_DMD_RA_DDS, 0x00F5C285},
|
|
{AUD_PLL_INT, 0x0000001E},
|
|
{AUD_PLL_DDS, 0x00000000},
|
|
{AUD_PLL_FRAC, 0x0000E542},
|
|
{AUD_RATE_ADJ1, 0x00000100},
|
|
{AUD_RATE_ADJ2, 0x00000200},
|
|
{AUD_RATE_ADJ3, 0x00000300},
|
|
{AUD_RATE_ADJ4, 0x00000400},
|
|
{AUD_RATE_ADJ5, 0x00000500},
|
|
{AUD_RATE_THRES_DMD, 0x000000C0},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
static const struct rlist a2_deemph50[] = {
|
|
{AUD_DEEMPH0_G0, 0x00000380},
|
|
{AUD_DEEMPH1_G0, 0x00000380},
|
|
{AUD_DEEMPHGAIN_R, 0x000011e1},
|
|
{AUD_DEEMPHNUMER1_R, 0x0002a7bc},
|
|
{AUD_DEEMPHNUMER2_R, 0x0003023c},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
set_audio_start(core, SEL_A2);
|
|
switch (core->tvaudio) {
|
|
case WW_BG:
|
|
dprintk("%s PAL-BG A1/2 (status: known-good)\n", __func__);
|
|
set_audio_registers(core, a2_bgdk_common);
|
|
set_audio_registers(core, a2_bg);
|
|
set_audio_registers(core, a2_deemph50);
|
|
break;
|
|
case WW_DK:
|
|
dprintk("%s PAL-DK A1/2 (status: known-good)\n", __func__);
|
|
set_audio_registers(core, a2_bgdk_common);
|
|
set_audio_registers(core, a2_dk);
|
|
set_audio_registers(core, a2_deemph50);
|
|
break;
|
|
case WW_I:
|
|
dprintk("%s PAL-I A1 (status: known-good)\n", __func__);
|
|
set_audio_registers(core, a1_i);
|
|
set_audio_registers(core, a2_deemph50);
|
|
break;
|
|
case WW_L:
|
|
dprintk("%s AM-L (status: devel)\n", __func__);
|
|
set_audio_registers(core, am_l);
|
|
break;
|
|
case WW_NONE:
|
|
case WW_BTSC:
|
|
case WW_EIAJ:
|
|
case WW_I2SPT:
|
|
case WW_FM:
|
|
case WW_I2SADC:
|
|
case WW_M:
|
|
dprintk("%s Warning: wrong value\n", __func__);
|
|
return;
|
|
}
|
|
|
|
mode |= EN_FMRADIO_EN_RDS | EN_DMTRX_SUMDIFF;
|
|
set_audio_finish(core, mode);
|
|
}
|
|
|
|
static void set_audio_standard_EIAJ(struct cx88_core *core)
|
|
{
|
|
static const struct rlist eiaj[] = {
|
|
/* TODO: eiaj register settings are not there yet ... */
|
|
|
|
{ /* end of list */ },
|
|
};
|
|
dprintk("%s (status: unknown)\n", __func__);
|
|
|
|
set_audio_start(core, SEL_EIAJ);
|
|
set_audio_registers(core, eiaj);
|
|
set_audio_finish(core, EN_EIAJ_AUTO_STEREO);
|
|
}
|
|
|
|
static void set_audio_standard_FM(struct cx88_core *core,
|
|
enum cx88_deemph_type deemph)
|
|
{
|
|
static const struct rlist fm_deemph_50[] = {
|
|
{AUD_DEEMPH0_G0, 0x0C45},
|
|
{AUD_DEEMPH0_A0, 0x6262},
|
|
{AUD_DEEMPH0_B0, 0x1C29},
|
|
{AUD_DEEMPH0_A1, 0x3FC66},
|
|
{AUD_DEEMPH0_B1, 0x399A},
|
|
|
|
{AUD_DEEMPH1_G0, 0x0D80},
|
|
{AUD_DEEMPH1_A0, 0x6262},
|
|
{AUD_DEEMPH1_B0, 0x1C29},
|
|
{AUD_DEEMPH1_A1, 0x3FC66},
|
|
{AUD_DEEMPH1_B1, 0x399A},
|
|
|
|
{AUD_POLYPH80SCALEFAC, 0x0003},
|
|
{ /* end of list */ },
|
|
};
|
|
static const struct rlist fm_deemph_75[] = {
|
|
{AUD_DEEMPH0_G0, 0x091B},
|
|
{AUD_DEEMPH0_A0, 0x6B68},
|
|
{AUD_DEEMPH0_B0, 0x11EC},
|
|
{AUD_DEEMPH0_A1, 0x3FC66},
|
|
{AUD_DEEMPH0_B1, 0x399A},
|
|
|
|
{AUD_DEEMPH1_G0, 0x0AA0},
|
|
{AUD_DEEMPH1_A0, 0x6B68},
|
|
{AUD_DEEMPH1_B0, 0x11EC},
|
|
{AUD_DEEMPH1_A1, 0x3FC66},
|
|
{AUD_DEEMPH1_B1, 0x399A},
|
|
|
|
{AUD_POLYPH80SCALEFAC, 0x0003},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
/*
|
|
* It is enough to leave default values?
|
|
*
|
|
* No, it's not! The deemphasis registers are reset to the 75us
|
|
* values by default. Analyzing the spectrum of the decoded audio
|
|
* reveals that "no deemphasis" is the same as 75 us, while the 50 us
|
|
* setting results in less deemphasis.
|
|
*/
|
|
static const struct rlist fm_no_deemph[] = {
|
|
{AUD_POLYPH80SCALEFAC, 0x0003},
|
|
{ /* end of list */ },
|
|
};
|
|
|
|
dprintk("%s (status: unknown)\n", __func__);
|
|
set_audio_start(core, SEL_FMRADIO);
|
|
|
|
switch (deemph) {
|
|
default:
|
|
case FM_NO_DEEMPH:
|
|
set_audio_registers(core, fm_no_deemph);
|
|
break;
|
|
|
|
case FM_DEEMPH_50:
|
|
set_audio_registers(core, fm_deemph_50);
|
|
break;
|
|
|
|
case FM_DEEMPH_75:
|
|
set_audio_registers(core, fm_deemph_75);
|
|
break;
|
|
}
|
|
|
|
set_audio_finish(core, EN_FMRADIO_AUTO_STEREO);
|
|
}
|
|
|
|
/* ----------------------------------------------------------- */
|
|
|
|
static int cx88_detect_nicam(struct cx88_core *core)
|
|
{
|
|
int i, j = 0;
|
|
|
|
dprintk("start nicam autodetect.\n");
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
/* if bit1=1 then nicam is detected */
|
|
j += ((cx_read(AUD_NICAM_STATUS2) & 0x02) >> 1);
|
|
|
|
if (j == 1) {
|
|
dprintk("nicam is detected.\n");
|
|
return 1;
|
|
}
|
|
|
|
/* wait a little bit for next reading status */
|
|
usleep_range(10000, 20000);
|
|
}
|
|
|
|
dprintk("nicam is not detected.\n");
|
|
return 0;
|
|
}
|
|
|
|
void cx88_set_tvaudio(struct cx88_core *core)
|
|
{
|
|
switch (core->tvaudio) {
|
|
case WW_BTSC:
|
|
set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
|
|
break;
|
|
case WW_BG:
|
|
case WW_DK:
|
|
case WW_M:
|
|
case WW_I:
|
|
case WW_L:
|
|
/* prepare all dsp registers */
|
|
set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
|
|
|
|
/*
|
|
* set nicam mode - otherwise
|
|
* AUD_NICAM_STATUS2 contains wrong values
|
|
*/
|
|
set_audio_standard_NICAM(core, EN_NICAM_AUTO_STEREO);
|
|
if (cx88_detect_nicam(core) == 0) {
|
|
/* fall back to fm / am mono */
|
|
set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
|
|
core->audiomode_current = V4L2_TUNER_MODE_MONO;
|
|
core->use_nicam = 0;
|
|
} else {
|
|
core->use_nicam = 1;
|
|
}
|
|
break;
|
|
case WW_EIAJ:
|
|
set_audio_standard_EIAJ(core);
|
|
break;
|
|
case WW_FM:
|
|
set_audio_standard_FM(core, radio_deemphasis);
|
|
break;
|
|
case WW_I2SADC:
|
|
set_audio_start(core, 0x01);
|
|
/*
|
|
* Slave/Philips/Autobaud
|
|
* NB on Nova-S bit1 NPhilipsSony appears to be inverted:
|
|
* 0= Sony, 1=Philips
|
|
*/
|
|
cx_write(AUD_I2SINPUTCNTL, core->board.i2sinputcntl);
|
|
/* Switch to "I2S ADC mode" */
|
|
cx_write(AUD_I2SCNTL, 0x1);
|
|
set_audio_finish(core, EN_I2SIN_ENABLE);
|
|
break;
|
|
case WW_NONE:
|
|
case WW_I2SPT:
|
|
pr_info("unknown tv audio mode [%d]\n", core->tvaudio);
|
|
break;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(cx88_set_tvaudio);
|
|
|
|
void cx88_newstation(struct cx88_core *core)
|
|
{
|
|
core->audiomode_manual = UNSET;
|
|
core->last_change = jiffies;
|
|
}
|
|
EXPORT_SYMBOL(cx88_newstation);
|
|
|
|
void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t)
|
|
{
|
|
static const char * const m[] = { "stereo", "dual mono",
|
|
"mono", "sap" };
|
|
static const char * const p[] = { "no pilot", "pilot c1",
|
|
"pilot c2", "?" };
|
|
u32 reg, mode, pilot;
|
|
|
|
reg = cx_read(AUD_STATUS);
|
|
mode = reg & 0x03;
|
|
pilot = (reg >> 2) & 0x03;
|
|
|
|
if (core->astat != reg)
|
|
dprintk("AUD_STATUS: 0x%x [%s/%s] ctl=%s\n",
|
|
reg, m[mode], p[pilot],
|
|
aud_ctl_names[cx_read(AUD_CTL) & 63]);
|
|
core->astat = reg;
|
|
|
|
t->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_SAP |
|
|
V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
|
|
t->rxsubchans = UNSET;
|
|
t->audmode = V4L2_TUNER_MODE_MONO;
|
|
|
|
switch (mode) {
|
|
case 0:
|
|
t->audmode = V4L2_TUNER_MODE_STEREO;
|
|
break;
|
|
case 1:
|
|
t->audmode = V4L2_TUNER_MODE_LANG2;
|
|
break;
|
|
case 2:
|
|
t->audmode = V4L2_TUNER_MODE_MONO;
|
|
break;
|
|
case 3:
|
|
t->audmode = V4L2_TUNER_MODE_SAP;
|
|
break;
|
|
}
|
|
|
|
switch (core->tvaudio) {
|
|
case WW_BTSC:
|
|
case WW_BG:
|
|
case WW_DK:
|
|
case WW_M:
|
|
case WW_EIAJ:
|
|
if (!core->use_nicam) {
|
|
t->rxsubchans = cx88_dsp_detect_stereo_sap(core);
|
|
break;
|
|
}
|
|
break;
|
|
case WW_NONE:
|
|
case WW_I:
|
|
case WW_L:
|
|
case WW_I2SPT:
|
|
case WW_FM:
|
|
case WW_I2SADC:
|
|
/* nothing */
|
|
break;
|
|
}
|
|
|
|
/* If software stereo detection is not supported... */
|
|
if (t->rxsubchans == UNSET) {
|
|
t->rxsubchans = V4L2_TUNER_SUB_MONO;
|
|
/*
|
|
* If the hardware itself detected stereo, also return
|
|
* stereo as an available subchannel
|
|
*/
|
|
if (t->audmode == V4L2_TUNER_MODE_STEREO)
|
|
t->rxsubchans |= V4L2_TUNER_SUB_STEREO;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(cx88_get_stereo);
|
|
|
|
|
|
void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual)
|
|
{
|
|
u32 ctl = UNSET;
|
|
u32 mask = UNSET;
|
|
|
|
if (manual) {
|
|
core->audiomode_manual = mode;
|
|
} else {
|
|
if (core->audiomode_manual != UNSET)
|
|
return;
|
|
}
|
|
core->audiomode_current = mode;
|
|
|
|
switch (core->tvaudio) {
|
|
case WW_BTSC:
|
|
switch (mode) {
|
|
case V4L2_TUNER_MODE_MONO:
|
|
set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_MONO);
|
|
break;
|
|
case V4L2_TUNER_MODE_LANG1:
|
|
set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
|
|
break;
|
|
case V4L2_TUNER_MODE_LANG2:
|
|
set_audio_standard_BTSC(core, 1, EN_BTSC_FORCE_SAP);
|
|
break;
|
|
case V4L2_TUNER_MODE_STEREO:
|
|
case V4L2_TUNER_MODE_LANG1_LANG2:
|
|
set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_STEREO);
|
|
break;
|
|
}
|
|
break;
|
|
case WW_BG:
|
|
case WW_DK:
|
|
case WW_M:
|
|
case WW_I:
|
|
case WW_L:
|
|
if (core->use_nicam == 1) {
|
|
switch (mode) {
|
|
case V4L2_TUNER_MODE_MONO:
|
|
case V4L2_TUNER_MODE_LANG1:
|
|
set_audio_standard_NICAM(core,
|
|
EN_NICAM_FORCE_MONO1);
|
|
break;
|
|
case V4L2_TUNER_MODE_LANG2:
|
|
set_audio_standard_NICAM(core,
|
|
EN_NICAM_FORCE_MONO2);
|
|
break;
|
|
case V4L2_TUNER_MODE_STEREO:
|
|
case V4L2_TUNER_MODE_LANG1_LANG2:
|
|
set_audio_standard_NICAM(core,
|
|
EN_NICAM_FORCE_STEREO);
|
|
break;
|
|
}
|
|
} else {
|
|
if ((core->tvaudio == WW_I) ||
|
|
(core->tvaudio == WW_L)) {
|
|
/* fall back to fm / am mono */
|
|
set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
|
|
} else {
|
|
/* TODO: Add A2 autodection */
|
|
mask = 0x3f;
|
|
switch (mode) {
|
|
case V4L2_TUNER_MODE_MONO:
|
|
case V4L2_TUNER_MODE_LANG1:
|
|
ctl = EN_A2_FORCE_MONO1;
|
|
break;
|
|
case V4L2_TUNER_MODE_LANG2:
|
|
ctl = EN_A2_FORCE_MONO2;
|
|
break;
|
|
case V4L2_TUNER_MODE_STEREO:
|
|
case V4L2_TUNER_MODE_LANG1_LANG2:
|
|
ctl = EN_A2_FORCE_STEREO;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case WW_FM:
|
|
switch (mode) {
|
|
case V4L2_TUNER_MODE_MONO:
|
|
ctl = EN_FMRADIO_FORCE_MONO;
|
|
mask = 0x3f;
|
|
break;
|
|
case V4L2_TUNER_MODE_STEREO:
|
|
ctl = EN_FMRADIO_AUTO_STEREO;
|
|
mask = 0x3f;
|
|
break;
|
|
}
|
|
break;
|
|
case WW_I2SADC:
|
|
case WW_NONE:
|
|
case WW_EIAJ:
|
|
case WW_I2SPT:
|
|
/* DO NOTHING */
|
|
break;
|
|
}
|
|
|
|
if (ctl != UNSET) {
|
|
dprintk("cx88_set_stereo: mask 0x%x, ctl 0x%x [status=0x%x,ctl=0x%x,vol=0x%x]\n",
|
|
mask, ctl, cx_read(AUD_STATUS),
|
|
cx_read(AUD_CTL), cx_sread(SHADOW_AUD_VOL_CTL));
|
|
cx_andor(AUD_CTL, mask, ctl);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(cx88_set_stereo);
|
|
|
|
int cx88_audio_thread(void *data)
|
|
{
|
|
struct cx88_core *core = data;
|
|
struct v4l2_tuner t;
|
|
u32 mode = 0;
|
|
|
|
dprintk("cx88: tvaudio thread started\n");
|
|
set_freezable();
|
|
for (;;) {
|
|
msleep_interruptible(1000);
|
|
if (kthread_should_stop())
|
|
break;
|
|
try_to_freeze();
|
|
|
|
switch (core->tvaudio) {
|
|
case WW_BG:
|
|
case WW_DK:
|
|
case WW_M:
|
|
case WW_I:
|
|
case WW_L:
|
|
if (core->use_nicam)
|
|
goto hw_autodetect;
|
|
|
|
/* just monitor the audio status for now ... */
|
|
memset(&t, 0, sizeof(t));
|
|
cx88_get_stereo(core, &t);
|
|
|
|
if (core->audiomode_manual != UNSET)
|
|
/* manually set, don't do anything. */
|
|
continue;
|
|
|
|
/* monitor signal and set stereo if available */
|
|
if (t.rxsubchans & V4L2_TUNER_SUB_STEREO)
|
|
mode = V4L2_TUNER_MODE_STEREO;
|
|
else
|
|
mode = V4L2_TUNER_MODE_MONO;
|
|
if (mode == core->audiomode_current)
|
|
continue;
|
|
/* automatically switch to best available mode */
|
|
cx88_set_stereo(core, mode, 0);
|
|
break;
|
|
case WW_NONE:
|
|
case WW_BTSC:
|
|
case WW_EIAJ:
|
|
case WW_I2SPT:
|
|
case WW_FM:
|
|
case WW_I2SADC:
|
|
hw_autodetect:
|
|
/*
|
|
* stereo autodetection is supported by hardware so
|
|
* we don't need to do it manually. Do nothing.
|
|
*/
|
|
break;
|
|
}
|
|
}
|
|
|
|
dprintk("cx88: tvaudio thread exiting\n");
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(cx88_audio_thread);
|