diff options
| -rw-r--r-- | Makefile.target | 4 | ||||
| -rw-r--r-- | hw/i2c.h | 14 | ||||
| -rw-r--r-- | hw/max7310.c | 188 | ||||
| -rw-r--r-- | hw/spitz.c | 56 | ||||
| -rw-r--r-- | hw/wm8750.c | 545 |
5 files changed, 805 insertions, 2 deletions
diff --git a/Makefile.target b/Makefile.target index d24f4a567..a48652e88 100644 --- a/Makefile.target +++ b/Makefile.target @@ -459,8 +459,8 @@ VL_OBJS+= versatile_pci.o sd.o ptimer.o VL_OBJS+= arm_gic.o realview.o arm_sysctl.o VL_OBJS+= arm-semi.o VL_OBJS+= pxa2xx.o pxa2xx_pic.o pxa2xx_gpio.o pxa2xx_timer.o pxa2xx_dma.o -VL_OBJS+= pxa2xx_lcd.o pxa2xx_mmci.o pxa2xx_pcmcia.o max111x.o -VL_OBJS+= spitz.o ads7846.o ide.o serial.o nand.o $(AUDIODRV) +VL_OBJS+= pxa2xx_lcd.o pxa2xx_mmci.o pxa2xx_pcmcia.o max111x.o max7310.o +VL_OBJS+= spitz.o ads7846.o ide.o serial.o nand.o $(AUDIODRV) wm8750.o CPPFLAGS += -DHAS_AUDIO endif ifeq ($(TARGET_BASE_ARCH), sh4) @@ -46,4 +46,18 @@ void i2c_nack(i2c_bus *bus); int i2c_send(i2c_bus *bus, uint8_t data); int i2c_recv(i2c_bus *bus); +/* max7310.c */ +i2c_slave *max7310_init(i2c_bus *bus); +void max7310_reset(i2c_slave *i2c); +qemu_irq *max7310_gpio_in_get(i2c_slave *i2c); +void max7310_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler); + +/* wm8750.c */ +i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio); +void wm8750_reset(i2c_slave *i2c); +void wm8750_data_req_set(i2c_slave *i2c, + void (*data_req)(void *, int, int), void *opaque); +void wm8750_dac_dat(void *opaque, uint32_t sample); +uint32_t wm8750_adc_dat(void *opaque); + #endif diff --git a/hw/max7310.c b/hw/max7310.c new file mode 100644 index 000000000..a4aaf17d2 --- /dev/null +++ b/hw/max7310.c @@ -0,0 +1,188 @@ +/* + * MAX7310 8-port GPIO expansion chip. + * + * Copyright (c) 2006 Openedhand Ltd. + * Written by Andrzej Zaborowski <balrog@zabor.org> + * + * This file is licensed under GNU GPL. + */ + +#include "vl.h" + +struct max7310_s { + i2c_slave i2c; + int i2c_command_byte; + int len; + + uint8_t level; + uint8_t direction; + uint8_t polarity; + uint8_t status; + uint8_t command; + qemu_irq handler[8]; + qemu_irq *gpio_in; +}; + +void max7310_reset(i2c_slave *i2c) +{ + struct max7310_s *s = (struct max7310_s *) i2c; + s->level &= s->direction; + s->direction = 0xff; + s->polarity = 0xf0; + s->status = 0x01; + s->command = 0x00; +} + +static int max7310_rx(i2c_slave *i2c) +{ + struct max7310_s *s = (struct max7310_s *) i2c; + + switch (s->command) { + case 0x00: /* Input port */ + return s->level ^ s->polarity; + break; + + case 0x01: /* Output port */ + return s->level & ~s->direction; + break; + + case 0x02: /* Polarity inversion */ + return s->polarity; + + case 0x03: /* Configuration */ + return s->direction; + + case 0x04: /* Timeout */ + return s->status; + break; + + case 0xff: /* Reserved */ + return 0xff; + + default: +#ifdef VERBOSE + printf("%s: unknown register %02x\n", __FUNCTION__, s->command); +#endif + break; + } + return 0xff; +} + +static int max7310_tx(i2c_slave *i2c, uint8_t data) +{ + struct max7310_s *s = (struct max7310_s *) i2c; + uint8_t diff; + int line; + + if (s->len ++ > 1) { +#ifdef VERBOSE + printf("%s: message too long (%i bytes)\n", __FUNCTION__, s->len); +#endif + return 1; + } + + if (s->i2c_command_byte) { + s->command = data; + s->i2c_command_byte = 0; + return 0; + } + + switch (s->command) { + case 0x01: /* Output port */ + for (diff = (data ^ s->level) & ~s->direction; diff; + diff &= ~(1 << line)) { + line = ffs(diff) - 1; + if (s->handler[line]) + qemu_set_irq(s->handler[line], (data >> line) & 1); + } + s->level = (s->level & s->direction) | (data & ~s->direction); + break; + + case 0x02: /* Polarity inversion */ + s->polarity = data; + break; + + case 0x03: /* Configuration */ + s->level &= ~(s->direction ^ data); + s->direction = data; + break; + + case 0x04: /* Timeout */ + s->status = data; + break; + + case 0x00: /* Input port - ignore writes */ + break; + default: +#ifdef VERBOSE + printf("%s: unknown register %02x\n", __FUNCTION__, s->command); +#endif + return 1; + } + + return 0; +} + +static void max7310_event(i2c_slave *i2c, enum i2c_event event) +{ + struct max7310_s *s = (struct max7310_s *) i2c; + s->len = 0; + + switch (event) { + case I2C_START_SEND: + s->i2c_command_byte = 1; + break; + case I2C_FINISH: + if (s->len == 1) +#ifdef VERBOSE + printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len); +#endif + break; + default: + break; + } +} + +static void max7310_gpio_set(void *opaque, int line, int level) +{ + struct max7310_s *s = (struct max7310_s *) opaque; + if (line >= sizeof(s->handler) / sizeof(*s->handler) || line < 0) + cpu_abort(cpu_single_env, "bad GPIO line"); + + if (level) + s->level |= s->direction & (1 << line); + else + s->level &= ~(s->direction & (1 << line)); +} + +/* MAX7310 is SMBus-compatible (can be used with only SMBus protocols), + * but also accepts sequences that are not SMBus so return an I2C device. */ +struct i2c_slave *max7310_init(i2c_bus *bus) +{ + struct max7310_s *s = (struct max7310_s *) + i2c_slave_init(bus, 0, sizeof(struct max7310_s)); + s->i2c.event = max7310_event; + s->i2c.recv = max7310_rx; + s->i2c.send = max7310_tx; + s->gpio_in = qemu_allocate_irqs(max7310_gpio_set, s, + sizeof(s->handler) / sizeof(*s->handler)); + + max7310_reset(&s->i2c); + + return &s->i2c; +} + +qemu_irq *max7310_gpio_in_get(i2c_slave *i2c) +{ + struct max7310_s *s = (struct max7310_s *) i2c; + return s->gpio_in; +} + +void max7310_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler) +{ + struct max7310_s *s = (struct max7310_s *) i2c; + if (line >= sizeof(s->handler) / sizeof(*s->handler) || line < 0) + cpu_abort(cpu_single_env, "bad GPIO line"); + + s->handler[line] = handler; +} diff --git a/hw/spitz.c b/hw/spitz.c index 72b049e4e..4dd59bb6e 100644 --- a/hw/spitz.c +++ b/hw/spitz.c @@ -801,6 +801,57 @@ static void spitz_microdrive_attach(struct pxa2xx_state_s *cpu) } } +/* Wm8750 and Max7310 on I2C */ + +#define AKITA_MAX_ADDR 0x18 +#define SPITZ_WM_ADDRL 0x1a +#define SPITZ_WM_ADDRH 0x1b + +#define SPITZ_GPIO_WM 5 + +#ifdef HAS_AUDIO +static void spitz_wm8750_addr(int line, int level, void *opaque) +{ + i2c_slave *wm = (i2c_slave *) opaque; + if (level) + i2c_set_slave_address(wm, SPITZ_WM_ADDRH); + else + i2c_set_slave_address(wm, SPITZ_WM_ADDRL); +} +#endif + +static void spitz_i2c_setup(struct pxa2xx_state_s *cpu) +{ + /* Attach the CPU on one end of our I2C bus. */ + i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]); + +#ifdef HAS_AUDIO + AudioState *audio; + i2c_slave *wm; + + audio = AUD_init(); + if (!audio) + return; + /* Attach a WM8750 to the bus */ + wm = wm8750_init(bus, audio); + + spitz_wm8750_addr(0, 0, wm); + pxa2xx_gpio_handler_set(cpu->gpio, SPITZ_GPIO_WM, spitz_wm8750_addr, wm); + /* .. and to the sound interface. */ + cpu->i2s->opaque = wm; + cpu->i2s->codec_out = wm8750_dac_dat; + cpu->i2s->codec_in = wm8750_adc_dat; + wm8750_data_req_set(wm, cpu->i2s->data_req, cpu->i2s); +#endif +} + +static void spitz_akita_i2c_setup(struct pxa2xx_state_s *cpu) +{ + /* Attach a Max7310 to Akita I2C bus. */ + i2c_set_slave_address(max7310_init(pxa2xx_i2c_bus(cpu->i2c[0])), + AKITA_MAX_ADDR); +} + /* Other peripherals */ static void spitz_charge_switch(int line, int level, void *opaque) @@ -1026,6 +1077,11 @@ static void spitz_common_init(int ram_size, int vga_ram_size, spitz_gpio_setup(cpu, (model == akita) ? 1 : 2); + spitz_i2c_setup(cpu); + + if (model == akita) + spitz_akita_i2c_setup(cpu); + if (model == terrier) /* A 6.0 GB microdrive is permanently sitting in CF slot 0. */ spitz_microdrive_attach(cpu); diff --git a/hw/wm8750.c b/hw/wm8750.c new file mode 100644 index 000000000..c08eb7300 --- /dev/null +++ b/hw/wm8750.c @@ -0,0 +1,545 @@ +/* + * WM8750 audio CODEC. + * + * Copyright (c) 2006 Openedhand Ltd. + * Written by Andrzej Zaborowski <balrog@zabor.org> + * + * This file is licensed under GNU GPL. + */ + +#include "vl.h" + +#define IN_PORT_N 3 +#define OUT_PORT_N 3 + +#define CODEC "wm8750" + +struct wm_rate_s; +struct wm8750_s { + i2c_slave i2c; + 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; + uint32_t inmask, outmask; + const struct wm_rate_s *rate; +}; + +static inline void wm8750_in_load(struct wm8750_s *s) +{ + int acquired; + 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); + acquired = AUD_read(*s->in[0], s->data_in + s->idx_in, + sizeof(s->data_in) - s->idx_in); +} + +static inline void wm8750_out_flush(struct wm8750_s *s) +{ + int sent; + if (!s->idx_out) + return; + sent = AUD_write(*s->out[0], s->data_out, s->idx_out); + s->idx_out = 0; +} + +static void wm8750_audio_in_cb(void *opaque, int avail_b) +{ + struct wm8750_s *s = (struct wm8750_s *) opaque; + s->req_in = avail_b; + s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2); + +#if 0 + wm8750_in_load(s); +#endif +} + +static void wm8750_audio_out_cb(void *opaque, int free_b) +{ + struct wm8750_s *s = (struct wm8750_s *) opaque; + wm8750_out_flush(s); + + s->req_out = free_b; + s->data_req(s->opaque, free_b >> 2, s->req_in >> 2); +} + +struct wm_rate_s { + int adc; + int adc_hz; + int dac; + int dac_hz; +}; + +static const struct wm_rate_s 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, 128, 88200 }, /* SR: 11111 */ +}; + +void wm8750_set_format(struct wm8750_s *s) +{ + int i; + audsettings_t in_fmt; + audsettings_t out_fmt; + audsettings_t monoout_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] = 0; + } + 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] = 0; + } + + if (!s->enable) + return; + + /* Setup input */ + in_fmt.endianness = 0; + in_fmt.nchannels = 2; + in_fmt.freq = s->rate->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->rate->dac_hz; + out_fmt.fmt = AUD_FMT_S16; + monoout_fmt.endianness = 0; + monoout_fmt.nchannels = 1; + monoout_fmt.freq = s->rate->dac_hz; + monoout_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 */ + + /* 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); +} + +void inline wm8750_mask_update(struct wm8750_s *s) +{ +#define R_ONLY 0x0000ffff +#define L_ONLY 0xffff0000 +#define BOTH (R_ONLY | L_ONLY) +#define NONE (R_ONLY & L_ONLY) + s->inmask = + (s->inmute[0] ? R_ONLY : BOTH) & + (s->inmute[1] ? L_ONLY : BOTH) & + (s->mute ? NONE : BOTH); + s->outmask = + (s->outmute[0] ? R_ONLY : BOTH) & + (s->outmute[1] ? L_ONLY : BOTH) & + (s->mute ? NONE : BOTH); +} + +void wm8750_reset(i2c_slave *i2c) +{ + struct wm8750_s *s = (struct wm8750_s *) i2c; + s->enable = 0; + wm8750_set_format(s); + 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->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_mask_update(s); + s->i2c_len = 0; +} + +static void wm8750_event(i2c_slave *i2c, enum i2c_event event) +{ + struct wm8750_s *s = (struct wm8750_s *) 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(i2c_slave *i2c, uint8_t data) +{ + struct wm8750_s *s = (struct wm8750_s *) i2c; + uint8_t cmd; + uint16_t value; + + if (s->i2c_len >= 2) { + printf("%s: long message (%i bytes)\n", __FUNCTION__, s->i2c_len); +#ifdef VERBOSE + return 1; +#endif + } + 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_mask_update(s); + break; + + case WM8750_RINVOL: /* Right Channel PGA */ + s->invol[1] = value & 0x3f; /* RINVOL */ + s->inmute[1] = (value >> 7) & 1; /* RINMUTE */ + wm8750_mask_update(s); + break; + + case WM8750_ADCDAC: /* ADC and DAC Control */ + s->pol = (value >> 5) & 3; /* ADCPOL */ + s->mute = (value >> 3) & 1; /* DACMU */ + wm8750_mask_update(s); + break; + + case WM8750_ADCTL3: /* Additional Control (3) */ + break; + + case WM8750_LADC: /* Left ADC Digital Volume */ + s->invol[2] = value & 0xff; /* LADCVOL */ + break; + + case WM8750_RADC: /* Right ADC Digital Volume */ + s->invol[3] = value & 0xff; /* RADCVOL */ + 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 */ + break; + + case WM8750_RDAC: /* Right Channel Digital Volume */ + s->outvol[1] = value & 0xff; /* RDACVOL */ + break; + + case WM8750_BASS: /* Bass Control */ + break; + + case WM8750_LOUTM1: /* Left Mixer Control (1) */ + s->path[0] = (value >> 8) & 1; /* LD2LO */ + break; + + case WM8750_LOUTM2: /* Left Mixer Control (2) */ + s->path[1] = (value >> 8) & 1; /* RD2LO */ + break; + + case WM8750_ROUTM1: /* Right Mixer Control (1) */ + s->path[2] = (value >> 8) & 1; /* LD2RO */ + break; + + case WM8750_ROUTM2: /* Right Mixer Control (2) */ + s->path[3] = (value >> 8) & 1; /* RD2RO */ + break; + + case WM8750_MOUTM1: /* Mono Mixer Control (1) */ + s->mpath[0] = (value >> 8) & 1; /* LD2MO */ + break; + + case WM8750_MOUTM2: /* Mono Mixer Control (2) */ + s->mpath[1] = (value >> 8) & 1; /* RD2MO */ + break; + + case WM8750_LOUT1V: /* LOUT1 Volume */ + s->outvol[2] = value & 0x7f; /* LOUT2VOL */ + break; + + case WM8750_LOUT2V: /* LOUT2 Volume */ + s->outvol[4] = value & 0x7f; /* LOUT2VOL */ + break; + + case WM8750_ROUT1V: /* ROUT1 Volume */ + s->outvol[3] = value & 0x7f; /* ROUT2VOL */ + break; + + case WM8750_ROUT2V: /* ROUT2 Volume */ + s->outvol[5] = value & 0x7f; /* ROUT2VOL */ + break; + + case WM8750_MOUTV: /* MONOOUT Volume */ + s->outvol[6] = value & 0x7f; /* MONOOUTVOL */ + break; + + case WM8750_ADCTL2: /* Additional Control (2) */ + break; + + case WM8750_PWR2: /* Power Management (2) */ + s->power = value & 0x7e; + break; + + case WM8750_IFACE: /* Digital Audio Interface Format */ +#ifdef VERBOSE + if (value & 0x40) /* MS */ + printf("%s: attempt to enable Master Mode\n", __FUNCTION__); +#endif + s->format = value; + wm8750_set_format(s); + break; + + case WM8750_SRATE: /* Clocking and Sample Rate Control */ + s->rate = &wm_rate_table[(value >> 1) & 0x1f]; + wm8750_set_format(s); + break; + + case WM8750_RESET: /* Reset */ + wm8750_reset(&s->i2c); + break; + +#ifdef VERBOSE + default: + printf("%s: unknown register %02x\n", __FUNCTION__, cmd); +#endif + } + + return 0; +} + +static int wm8750_rx(i2c_slave *i2c) +{ + return 0x00; +} + +i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio) +{ + struct wm8750_s *s = (struct wm8750_s *) + i2c_slave_init(bus, 0, sizeof(struct wm8750_s)); + s->i2c.event = wm8750_event; + s->i2c.recv = wm8750_rx; + s->i2c.send = wm8750_tx; + + AUD_register_card(audio, CODEC, &s->card); + wm8750_reset(&s->i2c); + + return &s->i2c; +} + +void wm8750_fini(i2c_slave *i2c) +{ + struct wm8750_s *s = (struct wm8750_s *) i2c; + wm8750_reset(&s->i2c); + AUD_remove_card(&s->card); + qemu_free(s); +} + +void wm8750_data_req_set(i2c_slave *i2c, + void (*data_req)(void *, int, int), void *opaque) +{ + struct wm8750_s *s = (struct wm8750_s *) i2c; + s->data_req = data_req; + s->opaque = opaque; +} + +void wm8750_dac_dat(void *opaque, uint32_t sample) +{ + struct wm8750_s *s = (struct wm8750_s *) opaque; + uint32_t *data = (uint32_t *) &s->data_out[s->idx_out]; + *data = sample & s->outmask; + s->req_out -= 4; + s->idx_out += 4; + if (s->idx_out >= sizeof(s->data_out) || s->req_out <= 0) + wm8750_out_flush(s); +} + +uint32_t wm8750_adc_dat(void *opaque) +{ + struct wm8750_s *s = (struct wm8750_s *) 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 & s->inmask; +} |