static struct snd_soc_codec *wm8904_codec;
struct snd_soc_codec_device soc_codec_dev_wm8904;
+enum wm8904_type {
+ WM8904,
+ WM8912,
+};
+
#define WM8904_NUM_DCS_CHANNELS 4
#define WM8904_NUM_SUPPLIES 5
struct snd_soc_codec codec;
u16 reg_cache[WM8904_MAX_REGISTER + 1];
+ enum wm8904_type devtype;
+
struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES];
struct wm8904_pdata *pdata;
int dcs_l, dcs_r;
int dcs_l_reg, dcs_r_reg;
int timeout;
+ int pwr_reg;
/* This code is shared between HP and LINEOUT; we do all our
* power management in stereo pairs to avoid latency issues so
switch (reg) {
case WM8904_ANALOGUE_HP_0:
+ pwr_reg = WM8904_POWER_MANAGEMENT_2;
dcs_mask = WM8904_DCS_ENA_CHAN_0 | WM8904_DCS_ENA_CHAN_1;
dcs_r_reg = WM8904_DC_SERVO_8;
dcs_l_reg = WM8904_DC_SERVO_9;
dcs_r = 1;
break;
case WM8904_ANALOGUE_LINEOUT_0:
+ pwr_reg = WM8904_POWER_MANAGEMENT_3;
dcs_mask = WM8904_DCS_ENA_CHAN_2 | WM8904_DCS_ENA_CHAN_3;
dcs_r_reg = WM8904_DC_SERVO_6;
dcs_l_reg = WM8904_DC_SERVO_7;
}
switch (event) {
- case SND_SOC_DAPM_POST_PMU:
+ case SND_SOC_DAPM_PRE_PMU:
+ /* Power on the PGAs */
+ snd_soc_update_bits(codec, pwr_reg,
+ WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
+ WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA);
+
/* Power on the amplifier */
snd_soc_update_bits(codec, reg,
WM8904_HPL_ENA | WM8904_HPR_ENA,
WM8904_HPL_ENA | WM8904_HPR_ENA);
+
/* Enable the first stage */
snd_soc_update_bits(codec, reg,
WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY,
snd_soc_update_bits(codec, reg,
WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP);
+ break;
+ case SND_SOC_DAPM_POST_PMU:
/* Unshort the output itself */
snd_soc_update_bits(codec, reg,
WM8904_HPL_RMV_SHORT |
snd_soc_update_bits(codec, reg,
WM8904_HPL_RMV_SHORT |
WM8904_HPR_RMV_SHORT, 0);
+ break;
+ case SND_SOC_DAPM_POST_PMD:
/* Cache the DC servo configuration; this will be
* invalidated if we change the configuration. */
wm8904->dcs_state[dcs_l] = snd_soc_read(codec, dcs_l_reg);
WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY |
WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
0);
+
+ /* PGAs too */
+ snd_soc_update_bits(codec, pwr_reg,
+ WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
+ 0);
break;
}
SND_SOC_DAPM_SUPPLY("Charge pump", WM8904_CHARGE_PUMP_0, 0, 0, cp_event,
SND_SOC_DAPM_POST_PMU),
-SND_SOC_DAPM_PGA("HPL PGA", WM8904_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
-SND_SOC_DAPM_PGA("HPR PGA", WM8904_POWER_MANAGEMENT_2, 0, 0, NULL, 0),
+SND_SOC_DAPM_PGA("HPL PGA", SND_SOC_NOPM, 1, 0, NULL, 0),
+SND_SOC_DAPM_PGA("HPR PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
-SND_SOC_DAPM_PGA("LINEL PGA", WM8904_POWER_MANAGEMENT_3, 1, 0, NULL, 0),
-SND_SOC_DAPM_PGA("LINER PGA", WM8904_POWER_MANAGEMENT_3, 0, 0, NULL, 0),
+SND_SOC_DAPM_PGA("LINEL PGA", SND_SOC_NOPM, 1, 0, NULL, 0),
+SND_SOC_DAPM_PGA("LINER PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA_E("Headphone Output", SND_SOC_NOPM, WM8904_ANALOGUE_HP_0,
0, NULL, 0, out_pga_event,
- SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_PGA_E("Line Output", SND_SOC_NOPM, WM8904_ANALOGUE_LINEOUT_0,
0, NULL, 0, out_pga_event,
- SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_OUTPUT("HPOUTL"),
SND_SOC_DAPM_OUTPUT("HPOUTR"),
{ "LINER PGA", NULL, "LINER Mux" },
};
+static const struct snd_soc_dapm_route wm8912_intercon[] = {
+ { "HPL PGA", NULL, "DACL" },
+ { "HPR PGA", NULL, "DACR" },
+
+ { "LINEL PGA", NULL, "DACL" },
+ { "LINER PGA", NULL, "DACR" },
+};
+
static int wm8904_add_widgets(struct snd_soc_codec *codec)
{
- snd_soc_add_controls(codec, wm8904_adc_snd_controls,
- ARRAY_SIZE(wm8904_adc_snd_controls));
- snd_soc_add_controls(codec, wm8904_dac_snd_controls,
- ARRAY_SIZE(wm8904_dac_snd_controls));
- snd_soc_add_controls(codec, wm8904_snd_controls,
- ARRAY_SIZE(wm8904_snd_controls));
+ struct wm8904_priv *wm8904 = codec->private_data;
snd_soc_dapm_new_controls(codec, wm8904_core_dapm_widgets,
ARRAY_SIZE(wm8904_core_dapm_widgets));
- snd_soc_dapm_new_controls(codec, wm8904_adc_dapm_widgets,
- ARRAY_SIZE(wm8904_adc_dapm_widgets));
- snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
- ARRAY_SIZE(wm8904_dac_dapm_widgets));
- snd_soc_dapm_new_controls(codec, wm8904_dapm_widgets,
- ARRAY_SIZE(wm8904_dapm_widgets));
-
snd_soc_dapm_add_routes(codec, core_intercon,
ARRAY_SIZE(core_intercon));
- snd_soc_dapm_add_routes(codec, adc_intercon, ARRAY_SIZE(adc_intercon));
- snd_soc_dapm_add_routes(codec, dac_intercon, ARRAY_SIZE(dac_intercon));
- snd_soc_dapm_add_routes(codec, wm8904_intercon,
- ARRAY_SIZE(wm8904_intercon));
+
+ switch (wm8904->devtype) {
+ case WM8904:
+ snd_soc_add_controls(codec, wm8904_adc_snd_controls,
+ ARRAY_SIZE(wm8904_adc_snd_controls));
+ snd_soc_add_controls(codec, wm8904_dac_snd_controls,
+ ARRAY_SIZE(wm8904_dac_snd_controls));
+ snd_soc_add_controls(codec, wm8904_snd_controls,
+ ARRAY_SIZE(wm8904_snd_controls));
+
+ snd_soc_dapm_new_controls(codec, wm8904_adc_dapm_widgets,
+ ARRAY_SIZE(wm8904_adc_dapm_widgets));
+ snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
+ ARRAY_SIZE(wm8904_dac_dapm_widgets));
+ snd_soc_dapm_new_controls(codec, wm8904_dapm_widgets,
+ ARRAY_SIZE(wm8904_dapm_widgets));
+
+ snd_soc_dapm_add_routes(codec, core_intercon,
+ ARRAY_SIZE(core_intercon));
+ snd_soc_dapm_add_routes(codec, adc_intercon,
+ ARRAY_SIZE(adc_intercon));
+ snd_soc_dapm_add_routes(codec, dac_intercon,
+ ARRAY_SIZE(dac_intercon));
+ snd_soc_dapm_add_routes(codec, wm8904_intercon,
+ ARRAY_SIZE(wm8904_intercon));
+ break;
+
+ case WM8912:
+ snd_soc_add_controls(codec, wm8904_dac_snd_controls,
+ ARRAY_SIZE(wm8904_dac_snd_controls));
+
+ snd_soc_dapm_new_controls(codec, wm8904_dac_dapm_widgets,
+ ARRAY_SIZE(wm8904_dac_dapm_widgets));
+
+ snd_soc_dapm_add_routes(codec, dac_intercon,
+ ARRAY_SIZE(dac_intercon));
+ snd_soc_dapm_add_routes(codec, wm8912_intercon,
+ ARRAY_SIZE(wm8912_intercon));
+ break;
+ }
snd_soc_dapm_new_widgets(codec);
return 0;
return 0;
}
+static void wm8904_sync_cache(struct snd_soc_codec *codec)
+{
+ struct wm8904_priv *wm8904 = codec->private_data;
+ int i;
+
+ if (!codec->cache_sync)
+ return;
+
+ codec->cache_only = 0;
+
+ /* Sync back cached values if they're different from the
+ * hardware default.
+ */
+ for (i = 1; i < ARRAY_SIZE(wm8904->reg_cache); i++) {
+ if (!wm8904_access[i].writable)
+ continue;
+
+ if (wm8904->reg_cache[i] == wm8904_reg[i])
+ continue;
+
+ snd_soc_write(codec, i, wm8904->reg_cache[i]);
+ }
+
+ codec->cache_sync = 0;
+}
+
static int wm8904_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct wm8904_priv *wm8904 = codec->private_data;
- int ret, i;
+ int ret;
switch (level) {
case SND_SOC_BIAS_ON:
return ret;
}
- /* Sync back cached values if they're
- * different from the hardware default.
- */
- for (i = 1; i < ARRAY_SIZE(wm8904->reg_cache); i++) {
- if (!wm8904_access[i].writable)
- continue;
-
- if (wm8904->reg_cache[i] == wm8904_reg[i])
- continue;
-
- snd_soc_write(codec, i, wm8904->reg_cache[i]);
- }
+ wm8904_sync_cache(codec);
/* Enable bias */
snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
WM8904_BIAS_ENA, 0);
+#ifdef CONFIG_REGULATOR
+ /* Post 2.6.34 we will be able to get a callback when
+ * the regulators are disabled which we can use but
+ * for now just assume that the power will be cut if
+ * the regulator API is in use.
+ */
+ codec->cache_sync = 1;
+#endif
+
regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies),
wm8904->supplies);
break;
codec->reg_cache_size = WM8904_MAX_REGISTER;
codec->reg_cache = &wm8904->reg_cache;
codec->volatile_register = wm8904_volatile_register;
+ codec->cache_sync = 1;
+ codec->idle_bias_off = 1;
+
+ switch (wm8904->devtype) {
+ case WM8904:
+ break;
+ case WM8912:
+ memset(&wm8904_dai.capture, 0, sizeof(wm8904_dai.capture));
+ break;
+ default:
+ dev_err(codec->dev, "Unknown device type %d\n",
+ wm8904->devtype);
+ return -EINVAL;
+ }
memcpy(codec->reg_cache, wm8904_reg, sizeof(wm8904_reg));
codec = &wm8904->codec;
codec->hw_write = (hw_write_t)i2c_master_send;
+ wm8904->devtype = id->driver_data;
+
i2c_set_clientdata(i2c, wm8904);
codec->control_data = i2c;
wm8904->pdata = i2c->dev.platform_data;
}
static const struct i2c_device_id wm8904_i2c_id[] = {
- { "wm8904", 0 },
+ { "wm8904", WM8904 },
+ { "wm8912", WM8912 },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id);
projects / deliverable / linux.git / blobdiff