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path: root/drivers/media/pci/cx88/cx88-tvaudio.c
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Diffstat (limited to 'drivers/media/pci/cx88/cx88-tvaudio.c')
-rw-r--r--drivers/media/pci/cx88/cx88-tvaudio.c1046
1 files changed, 1046 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..9d25d77fb
--- /dev/null
+++ b/drivers/media/pci/cx88/cx88-tvaudio.c
@@ -0,0 +1,1046 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * 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 ...
+ *
+ * -----------------------------------------------------------------------
+ */
+
+#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);