--- /dev/null
+/*
+ * WM8750 audio CODEC.
+ *
+ * Copyright (c) 2006 Openedhand Ltd.
+ * Written by Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This file is licensed under GNU GPL.
+ */
+
+#include "hw/hw.h"
+#include "hw/i2c/i2c.h"
+#include "audio/audio.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;
+
+#define TYPE_WM8750 "wm8750"
+#define WM8750(obj) OBJECT_CHECK(WM8750State, (obj), TYPE_WM8750)
+
+typedef 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;
+} WM8750State;
+
+/* 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 = audio_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 = AUD_FMT_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 = AUD_FMT_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 void 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",
+ __FUNCTION__, s->i2c_len);
+#endif
+ break;
+ default:
+ break;
+ }
+}
+
+#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", __FUNCTION__, cmd);
+#endif
+ }
+
+ return 0;
+}
+
+static int wm8750_rx(I2CSlave *i2c)
+{
+ return 0x00;
+}
+
+static void wm8750_pre_save(void *opaque)
+{
+ WM8750State *s = opaque;
+
+ s->rate_vmstate = s->rate - wm_rate_table;
+}
+
+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 int wm8750_init(I2CSlave *i2c)
+{
+ WM8750State *s = WM8750(i2c);
+
+ AUD_register_card(CODEC, &s->card);
+ wm8750_reset(I2C_SLAVE(s));
+
+ return 0;
+}
+
+#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,
+ void (*data_req)(void *, int, int), 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);
+
+ 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 void wm8750_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ I2CSlaveClass *sc = I2C_SLAVE_CLASS(klass);
+
+ sc->init = wm8750_init;
+ sc->event = wm8750_event;
+ sc->recv = wm8750_rx;
+ sc->send = wm8750_tx;
+ dc->vmsd = &vmstate_wm8750;
+}
+
+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)
Code Review / kvmfornfv.git / blobdiff