static int __devinit pm8xxx_spk_probe(struct platform_device *pdev)
{
const struct pm8xxx_spk_platform_data *pdata = pdev->dev.platform_data;
int ret = 0;
if (!pdata) {
pr_err("missing platform data\n");
return -EINVAL;
}
the_spk_chip = kzalloc(sizeof(struct pm8xxx_spk_chip), GFP_KERNEL);
if (the_spk_chip == NULL) {
pr_err("kzalloc() failed.\n");
return -ENOMEM;
}
mutex_init(&the_spk_chip->spk_mutex);
the_spk_chip->dev = &pdev->dev;
the_spk_chip->version = pm8xxx_get_version(the_spk_chip->dev->parent);
switch (pm8xxx_get_version(the_spk_chip->dev->parent)) {
case PM8XXX_VERSION_8038:
break;
default:
ret = -ENODEV;
goto err_handle;
}
memcpy(&(the_spk_chip->pdata), pdata,
sizeof(struct pm8xxx_spk_platform_data));
the_spk_chip->base = pdev->resource[0].start;
the_spk_chip->end = pdev->resource[0].end;
if (the_spk_chip->pdata.spk_add_enable) {
int val;
val = pm8xxx_spk_read(PM8XXX_SPK_CTL1_REG_OFF);
if (val < 0) {
ret = val;
goto err_handle;
}
val |= (the_spk_chip->pdata.spk_add_enable & PM8XXX_ADD_EN);
ret = pm8xxx_spk_write(PM8XXX_SPK_CTL1_REG_OFF, val);
if (ret < 0)
goto err_handle;
}
return pm8xxx_spk_config();
err_handle:
pr_err("pm8xxx_spk_probe failed."
"Audio unavailable on speaker.\n");
mutex_destroy(&the_spk_chip->spk_mutex);
kfree(the_spk_chip);
return ret;
}
int pm8xxx_spk_mute(bool mute)
{
u8 val = 0;
int ret = 0;
if (spk_defined() == false) {
pr_err("Invalid spk handle or no spk_chip\n");
return -ENODEV;
}
val = pm8xxx_spk_read(PM8XXX_SPK_CTL1_REG_OFF);
val |= mute << 2;
ret = pm8xxx_spk_write(PM8XXX_SPK_CTL1_REG_OFF, val);
return ret;
}
int pm8xxx_spk_gain(u8 gain)
{
u8 val;
int ret = 0;
if (spk_defined() == false) {
pr_err("Invalid spk handle or no spk_chip\n");
return -ENODEV;
}
val = pm8xxx_spk_read(PM8XXX_SPK_CTL1_REG_OFF);
val = (gain << 4) | (val & 0xF);
ret = pm8xxx_spk_write(PM8XXX_SPK_CTL1_REG_OFF, val);
if (!ret) {
pm8xxx_spk_bank_write(the_spk_chip->base
+ PM8XXX_SPK_TEST_REG_1_OFF,
0, BOOST_6DB_GAIN_EN_MASK | VSEL_LD0_1P2);
}
return ret;
}
int pm8xxx_spk_enable(int enable)
{
int val = 0;
u16 addr;
int ret = 0;
if (spk_defined() == false) {
pr_err("Invalid spk handle or no spk_chip\n");
return -ENODEV;
}
addr = the_spk_chip->base + PM8XXX_SPK_TEST_REG_1_OFF;
val = pm8xxx_spk_read(PM8XXX_SPK_CTL1_REG_OFF);
if (val < 0)
return val;
if (enable)
val |= (1 << 3);
else
val &= ~(1 << 3);
ret = pm8xxx_spk_write(PM8XXX_SPK_CTL1_REG_OFF, val);
if (!ret)
ret = pm8xxx_spk_bank_write(addr, 6, PWM_EN_MASK);
return ret;
}
static int __devinit pm8xxx_spk_probe(struct platform_device *pdev)
{
const struct pm8xxx_spk_platform_data *pdata = pdev->dev.platform_data;
int ret = 0;
u8 value = 0;
if (!pdata) {
pr_err("missing platform data\n");
return -EINVAL;
}
the_spk_chip = kzalloc(sizeof(struct pm8xxx_spk_chip), GFP_KERNEL);
if (the_spk_chip == NULL) {
pr_err("kzalloc() failed.\n");
return -ENOMEM;
}
mutex_init(&the_spk_chip->spk_mutex);
the_spk_chip->dev = &pdev->dev;
the_spk_chip->version = pm8xxx_get_version(the_spk_chip->dev->parent);
switch (pm8xxx_get_version(the_spk_chip->dev->parent)) {
case PM8XXX_VERSION_8038:
break;
default:
ret = -ENODEV;
goto err_handle;
}
memcpy(&(the_spk_chip->pdata), pdata,
sizeof(struct pm8xxx_spk_platform_data));
the_spk_chip->base = pdev->resource[0].start;
the_spk_chip->end = pdev->resource[0].end;
if (the_spk_chip->pdata.spk_add_enable) {
int val;
val = pm8xxx_spk_read(PM8XXX_SPK_CTL1_REG_OFF);
if (val < 0) {
ret = val;
goto err_handle;
}
val |= (the_spk_chip->pdata.spk_add_enable & PM8XXX_ADD_EN);
ret = pm8xxx_spk_write(PM8XXX_SPK_CTL1_REG_OFF, val);
if (ret < 0)
goto err_handle;
}
value = ((the_spk_chip->pdata.cd_ng_threshold << 5) |
the_spk_chip->pdata.cd_nf_preamp_bias << 3);
pr_debug("Setting SPK_CTL2_REG = %02x\n", value);
pm8xxx_spk_write(PM8XXX_SPK_CTL2_REG_OFF, value);
value = ((the_spk_chip->pdata.cd_ng_hold << 5) |
(the_spk_chip->pdata.cd_ng_max_atten << 1) |
the_spk_chip->pdata.noise_mute);
pr_debug("Setting SPK_CTL3_REG = %02x\n", value);
pm8xxx_spk_write(PM8XXX_SPK_CTL3_REG_OFF, value);
value = ((the_spk_chip->pdata.cd_ng_decay_rate << 5) |
(the_spk_chip->pdata.cd_ng_attack_rate << 3) |
the_spk_chip->pdata.cd_delay << 2);
pr_debug("Setting SPK_CTL4_REG = %02x\n", value);
pm8xxx_spk_write(PM8XXX_SPK_CTL4_REG_OFF, value);
return pm8xxx_spk_config();
err_handle:
pr_err("pm8xxx_spk_probe failed."
"Audio unavailable on speaker.\n");
mutex_destroy(&the_spk_chip->spk_mutex);
kfree(the_spk_chip);
return ret;
}