diff options
Diffstat (limited to 'drivers/media/pci/cx88/cx88-tvaudio.c')
| -rw-r--r-- | drivers/media/pci/cx88/cx88-tvaudio.c | 1046 |
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); |