| /* |
| * WM8750 audio CODEC. |
| * |
| * Copyright (c) 2006 Openedhand Ltd. |
| * Written by Andrzej Zaborowski <balrog@zabor.org> |
| * |
| * This file is licensed under GNU GPL. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "hw/i2c/i2c.h" |
| #include "migration/vmstate.h" |
| #include "qemu/module.h" |
| #include "hw/audio/wm8750.h" |
| #include "audio/audio.h" |
| #include "qom/object.h" |
| |
| #define IN_PORT_N 3 |
| #define OUT_PORT_N 3 |
| |
| #define CODEC "wm8750" |
| |
| typedef struct { |
| int adc; |
| int adc_hz; |
| int dac; |
| int dac_hz; |
| } WMRate; |
| |
| OBJECT_DECLARE_SIMPLE_TYPE(WM8750State, WM8750) |
| |
| struct WM8750State { |
| I2CSlave parent_obj; |
| |
| uint8_t i2c_data[2]; |
| int i2c_len; |
| QEMUSoundCard card; |
| SWVoiceIn *adc_voice[IN_PORT_N]; |
| SWVoiceOut *dac_voice[OUT_PORT_N]; |
| int enable; |
| void (*data_req)(void *, int, int); |
| void *opaque; |
| uint8_t data_in[4096]; |
| uint8_t data_out[4096]; |
| int idx_in, req_in; |
| int idx_out, req_out; |
| |
| SWVoiceOut **out[2]; |
| uint8_t outvol[7], outmute[2]; |
| SWVoiceIn **in[2]; |
| uint8_t invol[4], inmute[2]; |
| |
| uint8_t diff[2], pol, ds, monomix[2], alc, mute; |
| uint8_t path[4], mpath[2], power, format; |
| const WMRate *rate; |
| uint8_t rate_vmstate; |
| int adc_hz, dac_hz, ext_adc_hz, ext_dac_hz, master; |
| }; |
| |
| /* pow(10.0, -i / 20.0) * 255, i = 0..42 */ |
| static const uint8_t wm8750_vol_db_table[] = { |
| 255, 227, 203, 181, 161, 143, 128, 114, 102, 90, 81, 72, 64, 57, 51, 45, |
| 40, 36, 32, 29, 26, 23, 20, 18, 16, 14, 13, 11, 10, 9, 8, 7, 6, 6, 5, 5, |
| 4, 4, 3, 3, 3, 2, 2 |
| }; |
| |
| #define WM8750_OUTVOL_TRANSFORM(x) wm8750_vol_db_table[(0x7f - x) / 3] |
| #define WM8750_INVOL_TRANSFORM(x) (x << 2) |
| |
| static inline void wm8750_in_load(WM8750State *s) |
| { |
| if (s->idx_in + s->req_in <= sizeof(s->data_in)) |
| return; |
| s->idx_in = MAX(0, (int) sizeof(s->data_in) - s->req_in); |
| AUD_read(*s->in[0], s->data_in + s->idx_in, |
| sizeof(s->data_in) - s->idx_in); |
| } |
| |
| static inline void wm8750_out_flush(WM8750State *s) |
| { |
| int sent = 0; |
| while (sent < s->idx_out) |
| sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent) |
| ?: s->idx_out; |
| s->idx_out = 0; |
| } |
| |
| static void wm8750_audio_in_cb(void *opaque, int avail_b) |
| { |
| WM8750State *s = (WM8750State *) opaque; |
| s->req_in = avail_b; |
| s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2); |
| } |
| |
| static void wm8750_audio_out_cb(void *opaque, int free_b) |
| { |
| WM8750State *s = (WM8750State *) opaque; |
| |
| if (s->idx_out >= free_b) { |
| s->idx_out = free_b; |
| s->req_out = 0; |
| wm8750_out_flush(s); |
| } else |
| s->req_out = free_b - s->idx_out; |
| |
| s->data_req(s->opaque, s->req_out >> 2, s->req_in >> 2); |
| } |
| |
| static const WMRate wm_rate_table[] = { |
| { 256, 48000, 256, 48000 }, /* SR: 00000 */ |
| { 384, 48000, 384, 48000 }, /* SR: 00001 */ |
| { 256, 48000, 1536, 8000 }, /* SR: 00010 */ |
| { 384, 48000, 2304, 8000 }, /* SR: 00011 */ |
| { 1536, 8000, 256, 48000 }, /* SR: 00100 */ |
| { 2304, 8000, 384, 48000 }, /* SR: 00101 */ |
| { 1536, 8000, 1536, 8000 }, /* SR: 00110 */ |
| { 2304, 8000, 2304, 8000 }, /* SR: 00111 */ |
| { 1024, 12000, 1024, 12000 }, /* SR: 01000 */ |
| { 1526, 12000, 1536, 12000 }, /* SR: 01001 */ |
| { 768, 16000, 768, 16000 }, /* SR: 01010 */ |
| { 1152, 16000, 1152, 16000 }, /* SR: 01011 */ |
| { 384, 32000, 384, 32000 }, /* SR: 01100 */ |
| { 576, 32000, 576, 32000 }, /* SR: 01101 */ |
| { 128, 96000, 128, 96000 }, /* SR: 01110 */ |
| { 192, 96000, 192, 96000 }, /* SR: 01111 */ |
| { 256, 44100, 256, 44100 }, /* SR: 10000 */ |
| { 384, 44100, 384, 44100 }, /* SR: 10001 */ |
| { 256, 44100, 1408, 8018 }, /* SR: 10010 */ |
| { 384, 44100, 2112, 8018 }, /* SR: 10011 */ |
| { 1408, 8018, 256, 44100 }, /* SR: 10100 */ |
| { 2112, 8018, 384, 44100 }, /* SR: 10101 */ |
| { 1408, 8018, 1408, 8018 }, /* SR: 10110 */ |
| { 2112, 8018, 2112, 8018 }, /* SR: 10111 */ |
| { 1024, 11025, 1024, 11025 }, /* SR: 11000 */ |
| { 1536, 11025, 1536, 11025 }, /* SR: 11001 */ |
| { 512, 22050, 512, 22050 }, /* SR: 11010 */ |
| { 768, 22050, 768, 22050 }, /* SR: 11011 */ |
| { 512, 24000, 512, 24000 }, /* SR: 11100 */ |
| { 768, 24000, 768, 24000 }, /* SR: 11101 */ |
| { 128, 88200, 128, 88200 }, /* SR: 11110 */ |
| { 192, 88200, 192, 88200 }, /* SR: 11111 */ |
| }; |
| |
| static void wm8750_vol_update(WM8750State *s) |
| { |
| /* FIXME: multiply all volumes by s->invol[2], s->invol[3] */ |
| |
| AUD_set_volume_in(s->adc_voice[0], s->mute, |
| s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
| s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
| AUD_set_volume_in(s->adc_voice[1], s->mute, |
| s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
| s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
| AUD_set_volume_in(s->adc_voice[2], s->mute, |
| s->inmute[0] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[0]), |
| s->inmute[1] ? 0 : WM8750_INVOL_TRANSFORM(s->invol[1])); |
| |
| /* FIXME: multiply all volumes by s->outvol[0], s->outvol[1] */ |
| |
| /* Speaker: LOUT2VOL ROUT2VOL */ |
| AUD_set_volume_out(s->dac_voice[0], s->mute, |
| s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[4]), |
| s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[5])); |
| |
| /* Headphone: LOUT1VOL ROUT1VOL */ |
| AUD_set_volume_out(s->dac_voice[1], s->mute, |
| s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[2]), |
| s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[3])); |
| |
| /* MONOOUT: MONOVOL MONOVOL */ |
| AUD_set_volume_out(s->dac_voice[2], s->mute, |
| s->outmute[0] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]), |
| s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6])); |
| } |
| |
| static void wm8750_set_format(WM8750State *s) |
| { |
| int i; |
| struct audsettings in_fmt; |
| struct audsettings out_fmt; |
| |
| wm8750_out_flush(s); |
| |
| if (s->in[0] && *s->in[0]) |
| AUD_set_active_in(*s->in[0], 0); |
| if (s->out[0] && *s->out[0]) |
| AUD_set_active_out(*s->out[0], 0); |
| |
| for (i = 0; i < IN_PORT_N; i ++) |
| if (s->adc_voice[i]) { |
| AUD_close_in(&s->card, s->adc_voice[i]); |
| s->adc_voice[i] = NULL; |
| } |
| for (i = 0; i < OUT_PORT_N; i ++) |
| if (s->dac_voice[i]) { |
| AUD_close_out(&s->card, s->dac_voice[i]); |
| s->dac_voice[i] = NULL; |
| } |
| |
| if (!s->enable) |
| return; |
| |
| /* Setup input */ |
| in_fmt.endianness = 0; |
| in_fmt.nchannels = 2; |
| in_fmt.freq = s->adc_hz; |
| in_fmt.fmt = AUDIO_FORMAT_S16; |
| |
| s->adc_voice[0] = AUD_open_in(&s->card, s->adc_voice[0], |
| CODEC ".input1", s, wm8750_audio_in_cb, &in_fmt); |
| s->adc_voice[1] = AUD_open_in(&s->card, s->adc_voice[1], |
| CODEC ".input2", s, wm8750_audio_in_cb, &in_fmt); |
| s->adc_voice[2] = AUD_open_in(&s->card, s->adc_voice[2], |
| CODEC ".input3", s, wm8750_audio_in_cb, &in_fmt); |
| |
| /* Setup output */ |
| out_fmt.endianness = 0; |
| out_fmt.nchannels = 2; |
| out_fmt.freq = s->dac_hz; |
| out_fmt.fmt = AUDIO_FORMAT_S16; |
| |
| s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0], |
| CODEC ".speaker", s, wm8750_audio_out_cb, &out_fmt); |
| s->dac_voice[1] = AUD_open_out(&s->card, s->dac_voice[1], |
| CODEC ".headphone", s, wm8750_audio_out_cb, &out_fmt); |
| /* MONOMIX is also in stereo for simplicity */ |
| s->dac_voice[2] = AUD_open_out(&s->card, s->dac_voice[2], |
| CODEC ".monomix", s, wm8750_audio_out_cb, &out_fmt); |
| /* no sense emulating OUT3 which is a mix of other outputs */ |
| |
| wm8750_vol_update(s); |
| |
| /* We should connect the left and right channels to their |
| * respective inputs/outputs but we have completely no need |
| * for mixing or combining paths to different ports, so we |
| * connect both channels to where the left channel is routed. */ |
| if (s->in[0] && *s->in[0]) |
| AUD_set_active_in(*s->in[0], 1); |
| if (s->out[0] && *s->out[0]) |
| AUD_set_active_out(*s->out[0], 1); |
| } |
| |
| static void wm8750_clk_update(WM8750State *s, int ext) |
| { |
| if (s->master || !s->ext_dac_hz) |
| s->dac_hz = s->rate->dac_hz; |
| else |
| s->dac_hz = s->ext_dac_hz; |
| |
| if (s->master || !s->ext_adc_hz) |
| s->adc_hz = s->rate->adc_hz; |
| else |
| s->adc_hz = s->ext_adc_hz; |
| |
| if (s->master || (!s->ext_dac_hz && !s->ext_adc_hz)) { |
| if (!ext) |
| wm8750_set_format(s); |
| } else { |
| if (ext) |
| wm8750_set_format(s); |
| } |
| } |
| |
| static void wm8750_reset(I2CSlave *i2c) |
| { |
| WM8750State *s = WM8750(i2c); |
| |
| s->rate = &wm_rate_table[0]; |
| s->enable = 0; |
| wm8750_clk_update(s, 1); |
| s->diff[0] = 0; |
| s->diff[1] = 0; |
| s->ds = 0; |
| s->alc = 0; |
| s->in[0] = &s->adc_voice[0]; |
| s->invol[0] = 0x17; |
| s->invol[1] = 0x17; |
| s->invol[2] = 0xc3; |
| s->invol[3] = 0xc3; |
| s->out[0] = &s->dac_voice[0]; |
| s->outvol[0] = 0xff; |
| s->outvol[1] = 0xff; |
| s->outvol[2] = 0x79; |
| s->outvol[3] = 0x79; |
| s->outvol[4] = 0x79; |
| s->outvol[5] = 0x79; |
| s->outvol[6] = 0x79; |
| s->inmute[0] = 0; |
| s->inmute[1] = 0; |
| s->outmute[0] = 0; |
| s->outmute[1] = 0; |
| s->mute = 1; |
| s->path[0] = 0; |
| s->path[1] = 0; |
| s->path[2] = 0; |
| s->path[3] = 0; |
| s->mpath[0] = 0; |
| s->mpath[1] = 0; |
| s->format = 0x0a; |
| s->idx_in = sizeof(s->data_in); |
| s->req_in = 0; |
| s->idx_out = 0; |
| s->req_out = 0; |
| wm8750_vol_update(s); |
| s->i2c_len = 0; |
| } |
| |
| static int wm8750_event(I2CSlave *i2c, enum i2c_event event) |
| { |
| WM8750State *s = WM8750(i2c); |
| |
| switch (event) { |
| case I2C_START_SEND: |
| s->i2c_len = 0; |
| break; |
| case I2C_FINISH: |
| #ifdef VERBOSE |
| if (s->i2c_len < 2) |
| printf("%s: message too short (%i bytes)\n", |
| __func__, s->i2c_len); |
| #endif |
| break; |
| default: |
| break; |
| } |
| |
| return 0; |
| } |
| |
| #define WM8750_LINVOL 0x00 |
| #define WM8750_RINVOL 0x01 |
| #define WM8750_LOUT1V 0x02 |
| #define WM8750_ROUT1V 0x03 |
| #define WM8750_ADCDAC 0x05 |
| #define WM8750_IFACE 0x07 |
| #define WM8750_SRATE 0x08 |
| #define WM8750_LDAC 0x0a |
| #define WM8750_RDAC 0x0b |
| #define WM8750_BASS 0x0c |
| #define WM8750_TREBLE 0x0d |
| #define WM8750_RESET 0x0f |
| #define WM8750_3D 0x10 |
| #define WM8750_ALC1 0x11 |
| #define WM8750_ALC2 0x12 |
| #define WM8750_ALC3 0x13 |
| #define WM8750_NGATE 0x14 |
| #define WM8750_LADC 0x15 |
| #define WM8750_RADC 0x16 |
| #define WM8750_ADCTL1 0x17 |
| #define WM8750_ADCTL2 0x18 |
| #define WM8750_PWR1 0x19 |
| #define WM8750_PWR2 0x1a |
| #define WM8750_ADCTL3 0x1b |
| #define WM8750_ADCIN 0x1f |
| #define WM8750_LADCIN 0x20 |
| #define WM8750_RADCIN 0x21 |
| #define WM8750_LOUTM1 0x22 |
| #define WM8750_LOUTM2 0x23 |
| #define WM8750_ROUTM1 0x24 |
| #define WM8750_ROUTM2 0x25 |
| #define WM8750_MOUTM1 0x26 |
| #define WM8750_MOUTM2 0x27 |
| #define WM8750_LOUT2V 0x28 |
| #define WM8750_ROUT2V 0x29 |
| #define WM8750_MOUTV 0x2a |
| |
| static int wm8750_tx(I2CSlave *i2c, uint8_t data) |
| { |
| WM8750State *s = WM8750(i2c); |
| uint8_t cmd; |
| uint16_t value; |
| |
| if (s->i2c_len >= 2) { |
| #ifdef VERBOSE |
| printf("%s: long message (%i bytes)\n", __func__, s->i2c_len); |
| #endif |
| return 1; |
| } |
| s->i2c_data[s->i2c_len ++] = data; |
| if (s->i2c_len != 2) |
| return 0; |
| |
| cmd = s->i2c_data[0] >> 1; |
| value = ((s->i2c_data[0] << 8) | s->i2c_data[1]) & 0x1ff; |
| |
| switch (cmd) { |
| case WM8750_LADCIN: /* ADC Signal Path Control (Left) */ |
| s->diff[0] = (((value >> 6) & 3) == 3); /* LINSEL */ |
| if (s->diff[0]) |
| s->in[0] = &s->adc_voice[0 + s->ds * 1]; |
| else |
| s->in[0] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; |
| break; |
| |
| case WM8750_RADCIN: /* ADC Signal Path Control (Right) */ |
| s->diff[1] = (((value >> 6) & 3) == 3); /* RINSEL */ |
| if (s->diff[1]) |
| s->in[1] = &s->adc_voice[0 + s->ds * 1]; |
| else |
| s->in[1] = &s->adc_voice[((value >> 6) & 3) * 1 + 0]; |
| break; |
| |
| case WM8750_ADCIN: /* ADC Input Mode */ |
| s->ds = (value >> 8) & 1; /* DS */ |
| if (s->diff[0]) |
| s->in[0] = &s->adc_voice[0 + s->ds * 1]; |
| if (s->diff[1]) |
| s->in[1] = &s->adc_voice[0 + s->ds * 1]; |
| s->monomix[0] = (value >> 6) & 3; /* MONOMIX */ |
| break; |
| |
| case WM8750_ADCTL1: /* Additional Control (1) */ |
| s->monomix[1] = (value >> 1) & 1; /* DMONOMIX */ |
| break; |
| |
| case WM8750_PWR1: /* Power Management (1) */ |
| s->enable = ((value >> 6) & 7) == 3; /* VMIDSEL, VREF */ |
| wm8750_set_format(s); |
| break; |
| |
| case WM8750_LINVOL: /* Left Channel PGA */ |
| s->invol[0] = value & 0x3f; /* LINVOL */ |
| s->inmute[0] = (value >> 7) & 1; /* LINMUTE */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_RINVOL: /* Right Channel PGA */ |
| s->invol[1] = value & 0x3f; /* RINVOL */ |
| s->inmute[1] = (value >> 7) & 1; /* RINMUTE */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_ADCDAC: /* ADC and DAC Control */ |
| s->pol = (value >> 5) & 3; /* ADCPOL */ |
| s->mute = (value >> 3) & 1; /* DACMU */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_ADCTL3: /* Additional Control (3) */ |
| break; |
| |
| case WM8750_LADC: /* Left ADC Digital Volume */ |
| s->invol[2] = value & 0xff; /* LADCVOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_RADC: /* Right ADC Digital Volume */ |
| s->invol[3] = value & 0xff; /* RADCVOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_ALC1: /* ALC Control (1) */ |
| s->alc = (value >> 7) & 3; /* ALCSEL */ |
| break; |
| |
| case WM8750_NGATE: /* Noise Gate Control */ |
| case WM8750_3D: /* 3D enhance */ |
| break; |
| |
| case WM8750_LDAC: /* Left Channel Digital Volume */ |
| s->outvol[0] = value & 0xff; /* LDACVOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_RDAC: /* Right Channel Digital Volume */ |
| s->outvol[1] = value & 0xff; /* RDACVOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_BASS: /* Bass Control */ |
| break; |
| |
| case WM8750_LOUTM1: /* Left Mixer Control (1) */ |
| s->path[0] = (value >> 8) & 1; /* LD2LO */ |
| /* TODO: mute/unmute respective paths */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_LOUTM2: /* Left Mixer Control (2) */ |
| s->path[1] = (value >> 8) & 1; /* RD2LO */ |
| /* TODO: mute/unmute respective paths */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_ROUTM1: /* Right Mixer Control (1) */ |
| s->path[2] = (value >> 8) & 1; /* LD2RO */ |
| /* TODO: mute/unmute respective paths */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_ROUTM2: /* Right Mixer Control (2) */ |
| s->path[3] = (value >> 8) & 1; /* RD2RO */ |
| /* TODO: mute/unmute respective paths */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_MOUTM1: /* Mono Mixer Control (1) */ |
| s->mpath[0] = (value >> 8) & 1; /* LD2MO */ |
| /* TODO: mute/unmute respective paths */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_MOUTM2: /* Mono Mixer Control (2) */ |
| s->mpath[1] = (value >> 8) & 1; /* RD2MO */ |
| /* TODO: mute/unmute respective paths */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_LOUT1V: /* LOUT1 Volume */ |
| s->outvol[2] = value & 0x7f; /* LOUT1VOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_LOUT2V: /* LOUT2 Volume */ |
| s->outvol[4] = value & 0x7f; /* LOUT2VOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_ROUT1V: /* ROUT1 Volume */ |
| s->outvol[3] = value & 0x7f; /* ROUT1VOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_ROUT2V: /* ROUT2 Volume */ |
| s->outvol[5] = value & 0x7f; /* ROUT2VOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_MOUTV: /* MONOOUT Volume */ |
| s->outvol[6] = value & 0x7f; /* MONOOUTVOL */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_ADCTL2: /* Additional Control (2) */ |
| break; |
| |
| case WM8750_PWR2: /* Power Management (2) */ |
| s->power = value & 0x7e; |
| /* TODO: mute/unmute respective paths */ |
| wm8750_vol_update(s); |
| break; |
| |
| case WM8750_IFACE: /* Digital Audio Interface Format */ |
| s->format = value; |
| s->master = (value >> 6) & 1; /* MS */ |
| wm8750_clk_update(s, s->master); |
| break; |
| |
| case WM8750_SRATE: /* Clocking and Sample Rate Control */ |
| s->rate = &wm_rate_table[(value >> 1) & 0x1f]; |
| wm8750_clk_update(s, 0); |
| break; |
| |
| case WM8750_RESET: /* Reset */ |
| wm8750_reset(I2C_SLAVE(s)); |
| break; |
| |
| #ifdef VERBOSE |
| default: |
| printf("%s: unknown register %02x\n", __func__, cmd); |
| #endif |
| } |
| |
| return 0; |
| } |
| |
| static uint8_t wm8750_rx(I2CSlave *i2c) |
| { |
| return 0x00; |
| } |
| |
| static int wm8750_pre_save(void *opaque) |
| { |
| WM8750State *s = opaque; |
| |
| s->rate_vmstate = s->rate - wm_rate_table; |
| |
| return 0; |
| } |
| |
| static int wm8750_post_load(void *opaque, int version_id) |
| { |
| WM8750State *s = opaque; |
| |
| s->rate = &wm_rate_table[s->rate_vmstate & 0x1f]; |
| return 0; |
| } |
| |
| static const VMStateDescription vmstate_wm8750 = { |
| .name = CODEC, |
| .version_id = 0, |
| .minimum_version_id = 0, |
| .pre_save = wm8750_pre_save, |
| .post_load = wm8750_post_load, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT8_ARRAY(i2c_data, WM8750State, 2), |
| VMSTATE_INT32(i2c_len, WM8750State), |
| VMSTATE_INT32(enable, WM8750State), |
| VMSTATE_INT32(idx_in, WM8750State), |
| VMSTATE_INT32(req_in, WM8750State), |
| VMSTATE_INT32(idx_out, WM8750State), |
| VMSTATE_INT32(req_out, WM8750State), |
| VMSTATE_UINT8_ARRAY(outvol, WM8750State, 7), |
| VMSTATE_UINT8_ARRAY(outmute, WM8750State, 2), |
| VMSTATE_UINT8_ARRAY(invol, WM8750State, 4), |
| VMSTATE_UINT8_ARRAY(inmute, WM8750State, 2), |
| VMSTATE_UINT8_ARRAY(diff, WM8750State, 2), |
| VMSTATE_UINT8(pol, WM8750State), |
| VMSTATE_UINT8(ds, WM8750State), |
| VMSTATE_UINT8_ARRAY(monomix, WM8750State, 2), |
| VMSTATE_UINT8(alc, WM8750State), |
| VMSTATE_UINT8(mute, WM8750State), |
| VMSTATE_UINT8_ARRAY(path, WM8750State, 4), |
| VMSTATE_UINT8_ARRAY(mpath, WM8750State, 2), |
| VMSTATE_UINT8(format, WM8750State), |
| VMSTATE_UINT8(power, WM8750State), |
| VMSTATE_UINT8(rate_vmstate, WM8750State), |
| VMSTATE_I2C_SLAVE(parent_obj, WM8750State), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static void wm8750_realize(DeviceState *dev, Error **errp) |
| { |
| WM8750State *s = WM8750(dev); |
| |
| AUD_register_card(CODEC, &s->card); |
| wm8750_reset(I2C_SLAVE(s)); |
| } |
| |
| #if 0 |
| static void wm8750_fini(I2CSlave *i2c) |
| { |
| WM8750State *s = WM8750(i2c); |
| |
| wm8750_reset(I2C_SLAVE(s)); |
| AUD_remove_card(&s->card); |
| g_free(s); |
| } |
| #endif |
| |
| void wm8750_data_req_set(DeviceState *dev, data_req_cb *data_req, void *opaque) |
| { |
| WM8750State *s = WM8750(dev); |
| |
| s->data_req = data_req; |
| s->opaque = opaque; |
| } |
| |
| void wm8750_dac_dat(void *opaque, uint32_t sample) |
| { |
| WM8750State *s = (WM8750State *) opaque; |
| |
| *(uint32_t *) &s->data_out[s->idx_out] = sample; |
| s->req_out -= 4; |
| s->idx_out += 4; |
| if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0) |
| wm8750_out_flush(s); |
| } |
| |
| void *wm8750_dac_buffer(void *opaque, int samples) |
| { |
| WM8750State *s = (WM8750State *) opaque; |
| /* XXX: Should check if there are <i>samples</i> free samples available */ |
| void *ret = s->data_out + s->idx_out; |
| |
| s->idx_out += samples << 2; |
| s->req_out -= samples << 2; |
| return ret; |
| } |
| |
| void wm8750_dac_commit(void *opaque) |
| { |
| WM8750State *s = (WM8750State *) opaque; |
| |
| wm8750_out_flush(s); |
| } |
| |
| uint32_t wm8750_adc_dat(void *opaque) |
| { |
| WM8750State *s = (WM8750State *) opaque; |
| uint32_t *data; |
| |
| if (s->idx_in >= sizeof(s->data_in)) { |
| wm8750_in_load(s); |
| if (s->idx_in >= sizeof(s->data_in)) { |
| return 0x80008000; /* silence in AUDIO_FORMAT_S16 sample format */ |
| } |
| } |
| |
| data = (uint32_t *) &s->data_in[s->idx_in]; |
| s->req_in -= 4; |
| s->idx_in += 4; |
| return *data; |
| } |
| |
| void wm8750_set_bclk_in(void *opaque, int new_hz) |
| { |
| WM8750State *s = (WM8750State *) opaque; |
| |
| s->ext_adc_hz = new_hz; |
| s->ext_dac_hz = new_hz; |
| wm8750_clk_update(s, 1); |
| } |
| |
| static Property wm8750_properties[] = { |
| DEFINE_AUDIO_PROPERTIES(WM8750State, card), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void wm8750_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass); |
| |
| dc->realize = wm8750_realize; |
| sc->event = wm8750_event; |
| sc->recv = wm8750_rx; |
| sc->send = wm8750_tx; |
| dc->vmsd = &vmstate_wm8750; |
| device_class_set_props(dc, wm8750_properties); |
| } |
| |
| static const TypeInfo wm8750_info = { |
| .name = TYPE_WM8750, |
| .parent = TYPE_I2C_SLAVE, |
| .instance_size = sizeof(WM8750State), |
| .class_init = wm8750_class_init, |
| }; |
| |
| static void wm8750_register_types(void) |
| { |
| type_register_static(&wm8750_info); |
| } |
| |
| type_init(wm8750_register_types) |
