#define CODEC "wm8750"
-struct wm_rate_s;
-struct wm8750_s {
+typedef struct {
+ int adc;
+ int adc_hz;
+ int dac;
+ int dac_hz;
+} WMRate;
+
+typedef struct {
i2c_slave i2c;
uint8_t i2c_data[2];
int i2c_len;
uint8_t diff[2], pol, ds, monomix[2], alc, mute;
uint8_t path[4], mpath[2], power, format;
- const struct wm_rate_s *rate;
+ const WMRate *rate;
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[] = {
#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(struct wm8750_s *s)
+static inline void wm8750_in_load(WM8750State *s)
{
int acquired;
if (s->idx_in + s->req_in <= sizeof(s->data_in))
sizeof(s->data_in) - s->idx_in);
}
-static inline void wm8750_out_flush(struct wm8750_s *s)
+static inline void wm8750_out_flush(WM8750State *s)
{
int sent = 0;
while (sent < s->idx_out)
static void wm8750_audio_in_cb(void *opaque, int avail_b)
{
- struct wm8750_s *s = (struct wm8750_s *) opaque;
+ 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)
{
- struct wm8750_s *s = (struct wm8750_s *) opaque;
+ WM8750State *s = (WM8750State *) opaque;
if (s->idx_out >= free_b) {
s->idx_out = free_b;
s->data_req(s->opaque, s->req_out >> 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[] = {
+static const WMRate wm_rate_table[] = {
{ 256, 48000, 256, 48000 }, /* SR: 00000 */
{ 384, 48000, 384, 48000 }, /* SR: 00001 */
{ 256, 48000, 1536, 8000 }, /* SR: 00010 */
{ 192, 88200, 192, 88200 }, /* SR: 11111 */
};
-static void wm8750_vol_update(struct wm8750_s *s)
+static void wm8750_vol_update(WM8750State *s)
{
/* FIXME: multiply all volumes by s->invol[2], s->invol[3] */
s->outmute[1] ? 0 : WM8750_OUTVOL_TRANSFORM(s->outvol[6]));
}
-static void wm8750_set_format(struct wm8750_s *s)
+static void wm8750_set_format(WM8750State *s)
{
int i;
struct audsettings in_fmt;
AUD_set_active_out(*s->out[0], 1);
}
-static void wm8750_clk_update(struct wm8750_s *s, int ext)
+static void wm8750_clk_update(WM8750State *s, int ext)
{
if (s->master || !s->ext_dac_hz)
s->dac_hz = s->rate->dac_hz;
}
}
-void wm8750_reset(i2c_slave *i2c)
+static void wm8750_reset(i2c_slave *i2c)
{
- struct wm8750_s *s = (struct wm8750_s *) i2c;
+ WM8750State *s = (WM8750State *) i2c;
s->rate = &wm_rate_table[0];
s->enable = 0;
wm8750_clk_update(s, 1);
static void wm8750_event(i2c_slave *i2c, enum i2c_event event)
{
- struct wm8750_s *s = (struct wm8750_s *) i2c;
+ WM8750State *s = (WM8750State *) i2c;
switch (event) {
case I2C_START_SEND:
static int wm8750_tx(i2c_slave *i2c, uint8_t data)
{
- struct wm8750_s *s = (struct wm8750_s *) i2c;
+ WM8750State *s = (WM8750State *) i2c;
uint8_t cmd;
uint16_t value;
static void wm8750_save(QEMUFile *f, void *opaque)
{
- struct wm8750_s *s = (struct wm8750_s *) opaque;
+ WM8750State *s = (WM8750State *) opaque;
int i;
qemu_put_8s(f, &s->i2c_data[0]);
qemu_put_8s(f, &s->i2c_data[1]);
static int wm8750_load(QEMUFile *f, void *opaque, int version_id)
{
- struct wm8750_s *s = (struct wm8750_s *) opaque;
+ WM8750State *s = (WM8750State *) opaque;
int i;
qemu_get_8s(f, &s->i2c_data[0]);
qemu_get_8s(f, &s->i2c_data[1]);
return 0;
}
-i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio)
+static void wm8750_init(i2c_slave *i2c)
{
- 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;
+ WM8750State *s = FROM_I2C_SLAVE(WM8750State, i2c);
- AUD_register_card(audio, CODEC, &s->card);
+ AUD_register_card(CODEC, &s->card);
wm8750_reset(&s->i2c);
register_savevm(CODEC, -1, 0, wm8750_save, wm8750_load, s);
-
- return &s->i2c;
}
#if 0
static void wm8750_fini(i2c_slave *i2c)
{
- struct wm8750_s *s = (struct wm8750_s *) i2c;
+ WM8750State *s = (WM8750State *) i2c;
wm8750_reset(&s->i2c);
AUD_remove_card(&s->card);
qemu_free(s);
}
#endif
-void wm8750_data_req_set(i2c_slave *i2c,
+void wm8750_data_req_set(DeviceState *dev,
void (*data_req)(void *, int, int), void *opaque)
{
- struct wm8750_s *s = (struct wm8750_s *) i2c;
+ WM8750State *s = FROM_I2C_SLAVE(WM8750State, I2C_SLAVE_FROM_QDEV(dev));
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;
+ WM8750State *s = (WM8750State *) opaque;
*(uint32_t *) &s->data_out[s->idx_out] = sample;
s->req_out -= 4;
void *wm8750_dac_buffer(void *opaque, int samples)
{
- struct wm8750_s *s = (struct wm8750_s *) opaque;
+ WM8750State *s = (WM8750State *) opaque;
/* XXX: Should check if there are <i>samples</i> free samples available */
void *ret = s->data_out + s->idx_out;
void wm8750_dac_commit(void *opaque)
{
- struct wm8750_s *s = (struct wm8750_s *) opaque;
+ WM8750State *s = (WM8750State *) opaque;
wm8750_out_flush(s);
}
uint32_t wm8750_adc_dat(void *opaque)
{
- struct wm8750_s *s = (struct wm8750_s *) opaque;
+ WM8750State *s = (WM8750State *) opaque;
uint32_t *data;
if (s->idx_in >= sizeof(s->data_in))
void wm8750_set_bclk_in(void *opaque, int new_hz)
{
- struct wm8750_s *s = (struct wm8750_s *) opaque;
+ WM8750State *s = (WM8750State *) opaque;
s->ext_adc_hz = new_hz;
s->ext_dac_hz = new_hz;
wm8750_clk_update(s, 1);
}
+
+static I2CSlaveInfo wm8750_info = {
+ .init = wm8750_init,
+ .event = wm8750_event,
+ .recv = wm8750_rx,
+ .send = wm8750_tx
+};
+
+static void wm8750_register_devices(void)
+{
+ i2c_register_slave("wm8750", sizeof(WM8750State), &wm8750_info);
+}
+
+device_init(wm8750_register_devices)
projects / qemu / blobdiff