[alsa-devel] [PATCH v2] ASoC: rt5677: Add the GPIO function
Oder Chiou
oder_chiou at realtek.com
Tue Sep 16 05:37:39 CEST 2014
The patch adds the GPIO function.
Signed-off-by: Oder Chiou <oder_chiou at realtek.com>
---
sound/soc/codecs/rt5677.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++
sound/soc/codecs/rt5677.h | 112 ++++++++++++++++++++++++++++++++++++++
2 files changed, 245 insertions(+)
diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c
index f0b751b..02bc8bd 100644
--- a/sound/soc/codecs/rt5677.c
+++ b/sound/soc/codecs/rt5677.c
@@ -19,6 +19,7 @@
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
+#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -3160,6 +3161,135 @@ static int rt5677_set_bias_level(struct snd_soc_codec *codec,
return 0;
}
+#ifdef CONFIG_GPIOLIB
+static inline struct rt5677_priv *gpio_to_rt5677(struct gpio_chip *chip)
+{
+ return container_of(chip, struct rt5677_priv, gpio_chip);
+}
+
+static void rt5677_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+
+ switch (offset) {
+ case RT5677_GPIO1 ... RT5677_GPIO5:
+ regmap_update_bits(rt5677->regmap, RT5677_GPIO_CTRL2,
+ 0x1 << (offset * 3 + 1), !!value << (offset * 3 + 1));
+ break;
+
+ case RT5677_GPIO6:
+ regmap_update_bits(rt5677->regmap, RT5677_GPIO_CTRL3,
+ RT5677_GPIO6_OUT_MASK, !!value << RT5677_GPIO6_OUT_SFT);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static int rt5677_gpio_direction_out(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+
+ switch (offset) {
+ case RT5677_GPIO1 ... RT5677_GPIO5:
+ regmap_update_bits(rt5677->regmap, RT5677_GPIO_CTRL2,
+ 0x3 << (offset * 3 + 1),
+ (0x2 | !!value) << (offset * 3 + 1));
+ break;
+
+ case RT5677_GPIO6:
+ regmap_update_bits(rt5677->regmap, RT5677_GPIO_CTRL3,
+ RT5677_GPIO6_DIR_MASK | RT5677_GPIO6_OUT_MASK,
+ RT5677_GPIO6_DIR_OUT | !!value << RT5677_GPIO6_OUT_SFT);
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int rt5677_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+ struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+ int value, ret;
+
+ ret = regmap_read(rt5677->regmap, RT5677_GPIO_ST, &value);
+ if (ret < 0)
+ return ret;
+
+ return (value & (0x1 << offset)) >> offset;
+}
+
+static int rt5677_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
+{
+ struct rt5677_priv *rt5677 = gpio_to_rt5677(chip);
+
+ switch (offset) {
+ case RT5677_GPIO1 ... RT5677_GPIO5:
+ regmap_update_bits(rt5677->regmap, RT5677_GPIO_CTRL2,
+ 0x1 << (offset * 3 + 2), 0x0);
+ break;
+
+ case RT5677_GPIO6:
+ regmap_update_bits(rt5677->regmap, RT5677_GPIO_CTRL3,
+ RT5677_GPIO6_DIR_MASK, RT5677_GPIO6_DIR_IN);
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static struct gpio_chip rt5677_template_chip = {
+ .label = "rt5677",
+ .owner = THIS_MODULE,
+ .direction_output = rt5677_gpio_direction_out,
+ .set = rt5677_gpio_set,
+ .direction_input = rt5677_gpio_direction_in,
+ .get = rt5677_gpio_get,
+ .can_sleep = 1,
+};
+
+static void rt5677_init_gpio(struct i2c_client *i2c)
+{
+ struct rt5677_priv *rt5677 = i2c_get_clientdata(i2c);
+ int ret;
+
+ rt5677->gpio_chip = rt5677_template_chip;
+ rt5677->gpio_chip.ngpio = RT5677_GPIO_NUM;
+ rt5677->gpio_chip.dev = &i2c->dev;
+ rt5677->gpio_chip.base = -1;
+
+ ret = gpiochip_add(&rt5677->gpio_chip);
+ if (ret != 0)
+ dev_err(&i2c->dev, "Failed to add GPIOs: %d\n", ret);
+}
+
+static void rt5677_free_gpio(struct i2c_client *i2c)
+{
+ struct rt5677_priv *rt5677 = i2c_get_clientdata(i2c);
+ int ret;
+
+ ret = gpiochip_remove(&rt5677->gpio_chip);
+ if (ret != 0)
+ dev_err(&i2c->dev, "Failed to remove GPIOs: %d\n", ret);
+}
+#else
+static void rt5677_init_gpio(struct i2c_client *i2c)
+{
+}
+
+static void rt5677_free_gpio(struct i2c_client *i2c)
+{
+}
+#endif
+
static int rt5677_probe(struct snd_soc_codec *codec)
{
struct rt5677_priv *rt5677 = snd_soc_codec_get_drvdata(codec);
@@ -3422,6 +3552,8 @@ static int rt5677_i2c_probe(struct i2c_client *i2c,
RT5677_GPIO5_DIR_OUT);
}
+ rt5677_init_gpio(i2c);
+
return snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5677,
rt5677_dai, ARRAY_SIZE(rt5677_dai));
}
@@ -3429,6 +3561,7 @@ static int rt5677_i2c_probe(struct i2c_client *i2c,
static int rt5677_i2c_remove(struct i2c_client *i2c)
{
snd_soc_unregister_codec(&i2c->dev);
+ rt5677_free_gpio(i2c);
return 0;
}
diff --git a/sound/soc/codecs/rt5677.h b/sound/soc/codecs/rt5677.h
index a334eb6..b61b72c 100644
--- a/sound/soc/codecs/rt5677.h
+++ b/sound/soc/codecs/rt5677.h
@@ -1363,10 +1363,109 @@
#define RT5677_SEL_SRC_IB01 (0x1 << 0)
#define RT5677_SEL_SRC_IB01_SFT 0
+/* GPIO status (0xbf) */
+#define RT5677_GPIO6_STATUS_MASK (0x1 << 5)
+#define RT5677_GPIO6_STATUS_SFT 5
+#define RT5677_GPIO5_STATUS_MASK (0x1 << 4)
+#define RT5677_GPIO5_STATUS_SFT 4
+#define RT5677_GPIO4_STATUS_MASK (0x1 << 3)
+#define RT5677_GPIO4_STATUS_SFT 3
+#define RT5677_GPIO3_STATUS_MASK (0x1 << 2)
+#define RT5677_GPIO3_STATUS_SFT 2
+#define RT5677_GPIO2_STATUS_MASK (0x1 << 1)
+#define RT5677_GPIO2_STATUS_SFT 1
+#define RT5677_GPIO1_STATUS_MASK (0x1 << 0)
+#define RT5677_GPIO1_STATUS_SFT 0
+
+/* GPIO Control 1 (0xc0) */
+#define RT5677_GPIO1_PIN_MASK (0x1 << 15)
+#define RT5677_GPIO1_PIN_SFT 15
+#define RT5677_GPIO1_PIN_GPIO1 (0x0 << 15)
+#define RT5677_GPIO1_PIN_IRQ (0x1 << 15)
+#define RT5677_IPTV_MODE_MASK (0x1 << 14)
+#define RT5677_IPTV_MODE_SFT 14
+#define RT5677_IPTV_MODE_GPIO (0x0 << 14)
+#define RT5677_IPTV_MODE_IPTV (0x1 << 14)
+#define RT5677_FUNC_MODE_MASK (0x1 << 13)
+#define RT5677_FUNC_MODE_SFT 13
+#define RT5677_FUNC_MODE_DMIC_GPIO (0x0 << 13)
+#define RT5677_FUNC_MODE_JTAG (0x1 << 13)
+
/* GPIO Control 2 (0xc1) */
#define RT5677_GPIO5_DIR_MASK (0x1 << 14)
+#define RT5677_GPIO5_DIR_SFT 14
#define RT5677_GPIO5_DIR_IN (0x0 << 14)
#define RT5677_GPIO5_DIR_OUT (0x1 << 14)
+#define RT5677_GPIO5_OUT_MASK (0x1 << 13)
+#define RT5677_GPIO5_OUT_SFT 13
+#define RT5677_GPIO5_OUT_LO (0x0 << 13)
+#define RT5677_GPIO5_OUT_HI (0x1 << 13)
+#define RT5677_GPIO5_P_MASK (0x1 << 12)
+#define RT5677_GPIO5_P_SFT 12
+#define RT5677_GPIO5_P_NOR (0x0 << 12)
+#define RT5677_GPIO5_P_INV (0x1 << 12)
+#define RT5677_GPIO4_DIR_MASK (0x1 << 11)
+#define RT5677_GPIO4_DIR_SFT 11
+#define RT5677_GPIO4_DIR_IN (0x0 << 11)
+#define RT5677_GPIO4_DIR_OUT (0x1 << 11)
+#define RT5677_GPIO4_OUT_MASK (0x1 << 10)
+#define RT5677_GPIO4_OUT_SFT 10
+#define RT5677_GPIO4_OUT_LO (0x0 << 10)
+#define RT5677_GPIO4_OUT_HI (0x1 << 10)
+#define RT5677_GPIO4_P_MASK (0x1 << 9)
+#define RT5677_GPIO4_P_SFT 9
+#define RT5677_GPIO4_P_NOR (0x0 << 9)
+#define RT5677_GPIO4_P_INV (0x1 << 9)
+#define RT5677_GPIO3_DIR_MASK (0x1 << 8)
+#define RT5677_GPIO3_DIR_SFT 8
+#define RT5677_GPIO3_DIR_IN (0x0 << 8)
+#define RT5677_GPIO3_DIR_OUT (0x1 << 8)
+#define RT5677_GPIO3_OUT_MASK (0x1 << 7)
+#define RT5677_GPIO3_OUT_SFT 7
+#define RT5677_GPIO3_OUT_LO (0x0 << 7)
+#define RT5677_GPIO3_OUT_HI (0x1 << 7)
+#define RT5677_GPIO3_P_MASK (0x1 << 6)
+#define RT5677_GPIO3_P_SFT 6
+#define RT5677_GPIO3_P_NOR (0x0 << 6)
+#define RT5677_GPIO3_P_INV (0x1 << 6)
+#define RT5677_GPIO2_DIR_MASK (0x1 << 5)
+#define RT5677_GPIO2_DIR_SFT 5
+#define RT5677_GPIO2_DIR_IN (0x0 << 5)
+#define RT5677_GPIO2_DIR_OUT (0x1 << 5)
+#define RT5677_GPIO2_OUT_MASK (0x1 << 4)
+#define RT5677_GPIO2_OUT_SFT 4
+#define RT5677_GPIO2_OUT_LO (0x0 << 4)
+#define RT5677_GPIO2_OUT_HI (0x1 << 4)
+#define RT5677_GPIO2_P_MASK (0x1 << 3)
+#define RT5677_GPIO2_P_SFT 3
+#define RT5677_GPIO2_P_NOR (0x0 << 3)
+#define RT5677_GPIO2_P_INV (0x1 << 3)
+#define RT5677_GPIO1_DIR_MASK (0x1 << 2)
+#define RT5677_GPIO1_DIR_SFT 2
+#define RT5677_GPIO1_DIR_IN (0x0 << 2)
+#define RT5677_GPIO1_DIR_OUT (0x1 << 2)
+#define RT5677_GPIO1_OUT_MASK (0x1 << 1)
+#define RT5677_GPIO1_OUT_SFT 1
+#define RT5677_GPIO1_OUT_LO (0x0 << 1)
+#define RT5677_GPIO1_OUT_HI (0x1 << 1)
+#define RT5677_GPIO1_P_MASK (0x1 << 0)
+#define RT5677_GPIO1_P_SFT 0
+#define RT5677_GPIO1_P_NOR (0x0 << 0)
+#define RT5677_GPIO1_P_INV (0x1 << 0)
+
+/* GPIO Control 3 (0xc2) */
+#define RT5677_GPIO6_DIR_MASK (0x1 << 2)
+#define RT5677_GPIO6_DIR_SFT 2
+#define RT5677_GPIO6_DIR_IN (0x0 << 2)
+#define RT5677_GPIO6_DIR_OUT (0x1 << 2)
+#define RT5677_GPIO6_OUT_MASK (0x1 << 1)
+#define RT5677_GPIO6_OUT_SFT 1
+#define RT5677_GPIO6_OUT_LO (0x0 << 1)
+#define RT5677_GPIO6_OUT_HI (0x1 << 1)
+#define RT5677_GPIO6_P_MASK (0x1 << 0)
+#define RT5677_GPIO6_P_SFT 0
+#define RT5677_GPIO6_P_NOR (0x0 << 0)
+#define RT5677_GPIO6_P_INV (0x1 << 0)
/* Virtual DSP Mixer Control (0xf7 0xf8 0xf9) */
#define RT5677_DSP_IB_01_H (0x1 << 15)
@@ -1428,6 +1527,16 @@ enum {
RT5677_AIFS,
};
+enum {
+ RT5677_GPIO1,
+ RT5677_GPIO2,
+ RT5677_GPIO3,
+ RT5677_GPIO4,
+ RT5677_GPIO5,
+ RT5677_GPIO6,
+ RT5677_GPIO_NUM,
+};
+
struct rt5677_priv {
struct snd_soc_codec *codec;
struct rt5677_platform_data pdata;
@@ -1441,6 +1550,9 @@ struct rt5677_priv {
int pll_src;
int pll_in;
int pll_out;
+#ifdef CONFIG_GPIOLIB
+ struct gpio_chip gpio_chip;
+#endif
};
#endif /* __RT5677_H__ */
--
1.8.1.1.439.g50a6b54
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