Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1055 insertions, 0 deletions

diff --git a/drivers/media/pci/cx88/cx88-tvaudio.c b/drivers/media/pci/cx88/cx88-tvaudio.c
new file mode 100644
index 000000000..545ad4c4d
--- /dev/null
+++ b/drivers/media/pci/cx88/cx88-tvaudio.c
@@ -0,0 +1,1055 @@
+/*
+ * cx88x-audio.c - Conexant CX23880/23881 audio downstream driver driver
+ *
+ *  (c) 2001 Michael Eskin, Tom Zakrajsek [Windows version]
+ *  (c) 2002 Yurij Sysoev <yurij@naturesoft.net>
+ *  (c) 2003 Gerd Knorr <kraxel@bytesex.org>
+ *
+ * -----------------------------------------------------------------------
+ *
+ * Lot of voodoo here.  Even the data sheet doesn't help to
+ * understand what is going on here, the documentation for the audio
+ * part of the cx2388x chip is *very* bad.
+ *
+ * Some of this comes from party done linux driver sources I got from
+ * [undocumented].
+ *
+ * Some comes from the dscaler sources, one of the dscaler driver guy works
+ * for Conexant ...
+ *
+ * -----------------------------------------------------------------------
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "cx88.h"
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/freezer.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/poll.h>
+#include <linux/signal.h>
+#include <linux/ioport.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/vmalloc.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/kthread.h>
+
+static unsigned int audio_debug;
+module_param(audio_debug, int, 0644);
+MODULE_PARM_DESC(audio_debug, "enable debug messages [audio]");
+
+static unsigned int always_analog;
+module_param(always_analog, int, 0644);
+MODULE_PARM_DESC(always_analog, "force analog audio out");
+
+static unsigned int radio_deemphasis;
+module_param(radio_deemphasis, int, 0644);
+MODULE_PARM_DESC(radio_deemphasis,
+		 "Radio deemphasis time constant, 0=None, 1=50us (elsewhere), 2=75us (USA)");
+
+#define dprintk(fmt, arg...) do {				\
+	if (audio_debug)						\
+		printk(KERN_DEBUG pr_fmt("%s: tvaudio:" fmt),		\
+			__func__, ##arg);				\
+} while (0)
+/* ----------------------------------------------------------- */
+
+static const char * const aud_ctl_names[64] = {
+	[EN_BTSC_FORCE_MONO] = "BTSC_FORCE_MONO",
+	[EN_BTSC_FORCE_STEREO] = "BTSC_FORCE_STEREO",
+	[EN_BTSC_FORCE_SAP] = "BTSC_FORCE_SAP",
+	[EN_BTSC_AUTO_STEREO] = "BTSC_AUTO_STEREO",
+	[EN_BTSC_AUTO_SAP] = "BTSC_AUTO_SAP",
+	[EN_A2_FORCE_MONO1] = "A2_FORCE_MONO1",
+	[EN_A2_FORCE_MONO2] = "A2_FORCE_MONO2",
+	[EN_A2_FORCE_STEREO] = "A2_FORCE_STEREO",
+	[EN_A2_AUTO_MONO2] = "A2_AUTO_MONO2",
+	[EN_A2_AUTO_STEREO] = "A2_AUTO_STEREO",
+	[EN_EIAJ_FORCE_MONO1] = "EIAJ_FORCE_MONO1",
+	[EN_EIAJ_FORCE_MONO2] = "EIAJ_FORCE_MONO2",
+	[EN_EIAJ_FORCE_STEREO] = "EIAJ_FORCE_STEREO",
+	[EN_EIAJ_AUTO_MONO2] = "EIAJ_AUTO_MONO2",
+	[EN_EIAJ_AUTO_STEREO] = "EIAJ_AUTO_STEREO",
+	[EN_NICAM_FORCE_MONO1] = "NICAM_FORCE_MONO1",
+	[EN_NICAM_FORCE_MONO2] = "NICAM_FORCE_MONO2",
+	[EN_NICAM_FORCE_STEREO] = "NICAM_FORCE_STEREO",
+	[EN_NICAM_AUTO_MONO2] = "NICAM_AUTO_MONO2",
+	[EN_NICAM_AUTO_STEREO] = "NICAM_AUTO_STEREO",
+	[EN_FMRADIO_FORCE_MONO] = "FMRADIO_FORCE_MONO",
+	[EN_FMRADIO_FORCE_STEREO] = "FMRADIO_FORCE_STEREO",
+	[EN_FMRADIO_AUTO_STEREO] = "FMRADIO_AUTO_STEREO",
+};
+
+struct rlist {
+	u32 reg;
+	u32 val;
+};
+
+static void set_audio_registers(struct cx88_core *core, const struct rlist *l)
+{
+	int i;
+
+	for (i = 0; l[i].reg; i++) {
+		switch (l[i].reg) {
+		case AUD_PDF_DDS_CNST_BYTE2:
+		case AUD_PDF_DDS_CNST_BYTE1:
+		case AUD_PDF_DDS_CNST_BYTE0:
+		case AUD_QAM_MODE:
+		case AUD_PHACC_FREQ_8MSB:
+		case AUD_PHACC_FREQ_8LSB:
+			cx_writeb(l[i].reg, l[i].val);
+			break;
+		default:
+			cx_write(l[i].reg, l[i].val);
+			break;
+		}
+	}
+}
+
+static void set_audio_start(struct cx88_core *core, u32 mode)
+{
+	/* mute */
+	cx_write(AUD_VOL_CTL, (1 << 6));
+
+	/* start programming */
+	cx_write(AUD_INIT, mode);
+	cx_write(AUD_INIT_LD, 0x0001);
+	cx_write(AUD_SOFT_RESET, 0x0001);
+}
+
+static void set_audio_finish(struct cx88_core *core, u32 ctl)
+{
+	u32 volume;
+
+	/* restart dma; This avoids buzz in NICAM and is good in others  */
+	cx88_stop_audio_dma(core);
+	cx_write(AUD_RATE_THRES_DMD, 0x000000C0);
+	cx88_start_audio_dma(core);
+
+	if (core->board.mpeg & CX88_MPEG_BLACKBIRD) {
+		cx_write(AUD_I2SINPUTCNTL, 4);
+		cx_write(AUD_BAUDRATE, 1);
+		/*
+		 * 'pass-thru mode': this enables the i2s
+		 * output to the mpeg encoder
+		 */
+		cx_set(AUD_CTL, EN_I2SOUT_ENABLE);
+		cx_write(AUD_I2SOUTPUTCNTL, 1);
+		cx_write(AUD_I2SCNTL, 0);
+		/* cx_write(AUD_APB_IN_RATE_ADJ, 0); */
+	}
+	if ((always_analog) || (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))) {
+		ctl |= EN_DAC_ENABLE;
+		cx_write(AUD_CTL, ctl);
+	}
+
+	/* finish programming */
+	cx_write(AUD_SOFT_RESET, 0x0000);
+
+	/* unmute */
+	volume = cx_sread(SHADOW_AUD_VOL_CTL);
+	cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, volume);
+
+	core->last_change = jiffies;
+}
+
+/* ----------------------------------------------------------- */
+
+static void set_audio_standard_BTSC(struct cx88_core *core, unsigned int sap,
+				    u32 mode)
+{
+	static const struct rlist btsc[] = {
+		{AUD_AFE_12DB_EN, 0x00000001},
+		{AUD_OUT1_SEL, 0x00000013},
+		{AUD_OUT1_SHIFT, 0x00000000},
+		{AUD_POLY0_DDS_CONSTANT, 0x0012010c},
+		{AUD_DMD_RA_DDS, 0x00c3e7aa},
+		{AUD_DBX_IN_GAIN, 0x00004734},
+		{AUD_DBX_WBE_GAIN, 0x00004640},
+		{AUD_DBX_SE_GAIN, 0x00008d31},
+		{AUD_DCOC_0_SRC, 0x0000001a},
+		{AUD_IIR1_4_SEL, 0x00000021},
+		{AUD_DCOC_PASS_IN, 0x00000003},
+		{AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
+		{AUD_DCOC_0_SHIFT_IN1, 0x00000008},
+		{AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
+		{AUD_DCOC_1_SHIFT_IN1, 0x00000008},
+		{AUD_DN0_FREQ, 0x0000283b},
+		{AUD_DN2_SRC_SEL, 0x00000008},
+		{AUD_DN2_FREQ, 0x00003000},
+		{AUD_DN2_AFC, 0x00000002},
+		{AUD_DN2_SHFT, 0x00000000},
+		{AUD_IIR2_2_SEL, 0x00000020},
+		{AUD_IIR2_2_SHIFT, 0x00000000},
+		{AUD_IIR2_3_SEL, 0x0000001f},
+		{AUD_IIR2_3_SHIFT, 0x00000000},
+		{AUD_CRDC1_SRC_SEL, 0x000003ce},
+		{AUD_CRDC1_SHIFT, 0x00000000},
+		{AUD_CORDIC_SHIFT_1, 0x00000007},
+		{AUD_DCOC_1_SRC, 0x0000001b},
+		{AUD_DCOC1_SHIFT, 0x00000000},
+		{AUD_RDSI_SEL, 0x00000008},
+		{AUD_RDSQ_SEL, 0x00000008},
+		{AUD_RDSI_SHIFT, 0x00000000},
+		{AUD_RDSQ_SHIFT, 0x00000000},
+		{AUD_POLYPH80SCALEFAC, 0x00000003},
+		{ /* end of list */ },
+	};
+	static const struct rlist btsc_sap[] = {
+		{AUD_AFE_12DB_EN, 0x00000001},
+		{AUD_DBX_IN_GAIN, 0x00007200},
+		{AUD_DBX_WBE_GAIN, 0x00006200},
+		{AUD_DBX_SE_GAIN, 0x00006200},
+		{AUD_IIR1_1_SEL, 0x00000000},
+		{AUD_IIR1_3_SEL, 0x00000001},
+		{AUD_DN1_SRC_SEL, 0x00000007},
+		{AUD_IIR1_4_SHIFT, 0x00000006},
+		{AUD_IIR2_1_SHIFT, 0x00000000},
+		{AUD_IIR2_2_SHIFT, 0x00000000},
+		{AUD_IIR3_0_SHIFT, 0x00000000},
+		{AUD_IIR3_1_SHIFT, 0x00000000},
+		{AUD_IIR3_0_SEL, 0x0000000d},
+		{AUD_IIR3_1_SEL, 0x0000000e},
+		{AUD_DEEMPH1_SRC_SEL, 0x00000014},
+		{AUD_DEEMPH1_SHIFT, 0x00000000},
+		{AUD_DEEMPH1_G0, 0x00004000},
+		{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_DN1_AFC, 0x00000002},
+		{AUD_DCOC_0_SHIFT_IN0, 0x0000000a},
+		{AUD_DCOC_0_SHIFT_IN1, 0x00000008},
+		{AUD_DCOC_1_SHIFT_IN0, 0x0000000a},
+		{AUD_DCOC_1_SHIFT_IN1, 0x00000008},
+		{AUD_IIR1_0_SEL, 0x0000001d},
+		{AUD_IIR1_2_SEL, 0x0000001e},
+		{AUD_IIR2_1_SEL, 0x00000002},
+		{AUD_IIR2_2_SEL, 0x00000004},
+		{AUD_IIR3_2_SEL, 0x0000000f},
+		{AUD_DCOC2_SHIFT, 0x00000001},
+		{AUD_IIR3_2_SHIFT, 0x00000001},
+		{AUD_DEEMPH0_SRC_SEL, 0x00000014},
+		{AUD_CORDIC_SHIFT_1, 0x00000006},
+		{AUD_POLY0_DDS_CONSTANT, 0x000e4db2},
+		{AUD_DMD_RA_DDS, 0x00f696e6},
+		{AUD_IIR2_3_SEL, 0x00000025},
+		{AUD_IIR1_4_SEL, 0x00000021},
+		{AUD_DN1_FREQ, 0x0000c965},
+		{AUD_DCOC_PASS_IN, 0x00000003},
+		{AUD_DCOC_0_SRC, 0x0000001a},
+		{AUD_DCOC_1_SRC, 0x0000001b},
+		{AUD_DCOC1_SHIFT, 0x00000000},
+		{AUD_RDSI_SEL, 0x00000009},
+		{AUD_RDSQ_SEL, 0x00000009},
+		{AUD_RDSI_SHIFT, 0x00000000},
+		{AUD_RDSQ_SHIFT, 0x00000000},
+		{AUD_POLYPH80SCALEFAC, 0x00000003},
+		{ /* end of list */ },
+	};
+
+	mode |= EN_FMRADIO_EN_RDS;
+
+	if (sap) {
+		dprintk("%s SAP (status: unknown)\n", __func__);
+		set_audio_start(core, SEL_SAP);
+		set_audio_registers(core, btsc_sap);
+		set_audio_finish(core, mode);
+	} else {
+		dprintk("%s (status: known-good)\n", __func__);
+		set_audio_start(core, SEL_BTSC);
+		set_audio_registers(core, btsc);
+		set_audio_finish(core, mode);
+	}
+}
+
+static void set_audio_standard_NICAM(struct cx88_core *core, u32 mode)
+{
+	static const struct rlist nicam_l[] = {
+		{AUD_AFE_12DB_EN, 0x00000001},
+		{AUD_RATE_ADJ1, 0x00000060},
+		{AUD_RATE_ADJ2, 0x000000F9},
+		{AUD_RATE_ADJ3, 0x000001CC},
+		{AUD_RATE_ADJ4, 0x000002B3},
+		{AUD_RATE_ADJ5, 0x00000726},
+		{AUD_DEEMPHDENOM1_R, 0x0000F3D0},
+		{AUD_DEEMPHDENOM2_R, 0x00000000},
+		{AUD_ERRLOGPERIOD_R, 0x00000064},
+		{AUD_ERRINTRPTTHSHLD1_R, 0x00000FFF},
+		{AUD_ERRINTRPTTHSHLD2_R, 0x0000001F},
+		{AUD_ERRINTRPTTHSHLD3_R, 0x0000000F},
+		{AUD_POLYPH80SCALEFAC, 0x00000003},
+		{AUD_DMD_RA_DDS, 0x00C00000},
+		{AUD_PLL_INT, 0x0000001E},
+		{AUD_PLL_DDS, 0x00000000},
+		{AUD_PLL_FRAC, 0x0000E542},
+		{AUD_START_TIMER, 0x00000000},
+		{AUD_DEEMPHNUMER1_R, 0x000353DE},
+		{AUD_DEEMPHNUMER2_R, 0x000001B1},
+		{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, 0x34},
+		{AUD_PHACC_FREQ_8LSB, 0x4C},
+		{AUD_DEEMPHGAIN_R, 0x00006680},
+		{AUD_RATE_THRES_DMD, 0x000000C0},
+		{ /* end of list */ },
+	};
+
+	static const struct rlist nicam_bgdki_common[] = {
+		{AUD_AFE_12DB_EN, 0x00000001},
+		{AUD_RATE_ADJ1, 0x00000010},
+		{AUD_RATE_ADJ2, 0x00000040},
+		{AUD_RATE_ADJ3, 0x00000100},
+		{AUD_RATE_ADJ4, 0x00000400},
+		{AUD_RATE_ADJ5, 0x00001000},
+		{AUD_ERRLOGPERIOD_R, 0x00000fff},
+		{AUD_ERRINTRPTTHSHLD1_R, 0x000003ff},
+		{AUD_ERRINTRPTTHSHLD2_R, 0x000000ff},
+		{AUD_ERRINTRPTTHSHLD3_R, 0x0000003f},
+		{AUD_POLYPH80SCALEFAC, 0x00000003},
+		{AUD_DEEMPHGAIN_R, 0x000023c2},
+		{AUD_DEEMPHNUMER1_R, 0x0002a7bc},
+		{AUD_DEEMPHNUMER2_R, 0x0003023e},
+		{AUD_DEEMPHDENOM1_R, 0x0000f3d0},
+		{AUD_DEEMPHDENOM2_R, 0x00000000},
+		{AUD_PDF_DDS_CNST_BYTE2, 0x06},
+		{AUD_PDF_DDS_CNST_BYTE1, 0x82},
+		{AUD_QAM_MODE, 0x05},
+		{ /* end of list */ },
+	};
+
+	static const struct rlist nicam_i[] = {
+		{AUD_PDF_DDS_CNST_BYTE0, 0x12},
+		{AUD_PHACC_FREQ_8MSB, 0x3a},
+		{AUD_PHACC_FREQ_8LSB, 0x93},
+		{ /* end of list */ },
+	};
+
+	static const struct rlist nicam_default[] = {
+		{AUD_PDF_DDS_CNST_BYTE0, 0x16},
+		{AUD_PHACC_FREQ_8MSB, 0x34},
+		{AUD_PHACC_FREQ_8LSB, 0x4c},
+		{ /* end of list */ },
+	};
+
+	set_audio_start(core, SEL_NICAM);
+	switch (core->tvaudio) {
+	case WW_L:
+		dprintk("%s SECAM-L NICAM (status: devel)\n", __func__);
+		set_audio_registers(core, nicam_l);
+		break;
+	case WW_I:
+		dprintk("%s PAL-I NICAM (status: known-good)\n", __func__);
+		set_audio_registers(core, nicam_bgdki_common);
+		set_audio_registers(core, nicam_i);
+		break;
+	case WW_NONE:
+	case WW_BTSC:
+	case WW_BG:
+	case WW_DK:
+	case WW_EIAJ:
+	case WW_I2SPT:
+	case WW_FM:
+	case WW_I2SADC:
+	case WW_M:
+		dprintk("%s PAL-BGDK NICAM (status: known-good)\n", __func__);
+		set_audio_registers(core, nicam_bgdki_common);
+		set_audio_registers(core, nicam_default);
+		break;
+	}
+
+	mode |= EN_DMTRX_LR | EN_DMTRX_BYPASS;
+	set_audio_finish(core, mode);
+}
+
+static void set_audio_standard_A2(struct cx88_core *core, u32 mode)
+{
+	static const struct rlist a2_bgdk_common[] = {
+		{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, 0x34},
+		{AUD_PHACC_FREQ_8LSB, 0x4c},
+		{AUD_RATE_ADJ1, 0x00000100},
+		{AUD_RATE_ADJ2, 0x00000200},
+		{AUD_RATE_ADJ3, 0x00000300},
+		{AUD_RATE_ADJ4, 0x00000400},
+		{AUD_RATE_ADJ5, 0x00000500},
+		{AUD_THR_FR, 0x00000000},
+		{AAGC_HYST, 0x0000001a},
+		{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, 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);