diff options
Diffstat (limited to 'drivers/iio/light/vcnl4000.c')
| -rw-r--r-- | drivers/iio/light/vcnl4000.c | 1194 |
1 files changed, 990 insertions, 204 deletions
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c index cc1a2062e76d..4dbb2294a843 100644 --- a/drivers/iio/light/vcnl4000.c +++ b/drivers/iio/light/vcnl4000.c @@ -24,6 +24,7 @@ #include <linux/delay.h> #include <linux/pm_runtime.h> #include <linux/interrupt.h> +#include <linux/units.h> #include <linux/iio/buffer.h> #include <linux/iio/events.h> @@ -60,8 +61,15 @@ #define VCNL4200_AL_CONF 0x00 /* Ambient light configuration */ #define VCNL4200_PS_CONF1 0x03 /* Proximity configuration */ +#define VCNL4200_PS_CONF3 0x04 /* Proximity configuration */ +#define VCNL4040_PS_THDL_LM 0x06 /* Proximity threshold low */ +#define VCNL4040_PS_THDH_LM 0x07 /* Proximity threshold high */ +#define VCNL4040_ALS_THDL_LM 0x02 /* Ambient light threshold low */ +#define VCNL4040_ALS_THDH_LM 0x01 /* Ambient light threshold high */ #define VCNL4200_PS_DATA 0x08 /* Proximity data */ #define VCNL4200_AL_DATA 0x09 /* Ambient light data */ +#define VCNL4040_INT_FLAGS 0x0b /* Interrupt register */ +#define VCNL4200_INT_FLAGS 0x0d /* Interrupt register */ #define VCNL4200_DEV_ID 0x0e /* Device ID, slave address and version */ #define VCNL4040_DEV_ID 0x0c /* Device ID and version */ @@ -76,8 +84,20 @@ #define VCNL4000_SELF_TIMED_EN BIT(0) /* start self-timed measurement */ #define VCNL4040_ALS_CONF_ALS_SHUTDOWN BIT(0) +#define VCNL4040_ALS_CONF_IT GENMASK(7, 6) /* Ambient integration time */ +#define VCNL4040_ALS_CONF_INT_EN BIT(1) /* Ambient light Interrupt enable */ +#define VCNL4040_ALS_CONF_PERS GENMASK(3, 2) /* Ambient interrupt persistence setting */ #define VCNL4040_PS_CONF1_PS_SHUTDOWN BIT(0) #define VCNL4040_PS_CONF2_PS_IT GENMASK(3, 1) /* Proximity integration time */ +#define VCNL4040_CONF1_PS_PERS GENMASK(5, 4) /* Proximity interrupt persistence setting */ +#define VCNL4040_PS_CONF2_PS_HD BIT(11) /* Proximity high definition */ +#define VCNL4040_PS_CONF2_PS_INT GENMASK(9, 8) /* Proximity interrupt mode */ +#define VCNL4040_PS_CONF3_MPS GENMASK(6, 5) /* Proximity multi pulse number */ +#define VCNL4040_PS_MS_LED_I GENMASK(10, 8) /* Proximity current */ +#define VCNL4040_PS_IF_AWAY BIT(8) /* Proximity event cross low threshold */ +#define VCNL4040_PS_IF_CLOSE BIT(9) /* Proximity event cross high threshold */ +#define VCNL4040_ALS_RISING BIT(12) /* Ambient Light cross high threshold */ +#define VCNL4040_ALS_FALLING BIT(13) /* Ambient Light cross low threshold */ /* Bit masks for interrupt registers. */ #define VCNL4010_INT_THR_SEL BIT(0) /* Select threshold interrupt source */ @@ -95,6 +115,13 @@ #define VCNL4010_INT_DRDY \ (BIT(VCNL4010_INT_PROXIMITY) | BIT(VCNL4010_INT_ALS)) +#define VCNL4040_CONF3_PS_MPS_16BITS 3 /* 8 multi pulses */ +#define VCNL4040_CONF3_PS_LED_I_16BITS 3 /* 120 mA */ + +#define VCNL4040_CONF3_PS_SAMPLE_16BITS \ + (FIELD_PREP(VCNL4040_PS_CONF3_MPS, VCNL4040_CONF3_PS_MPS_16BITS) | \ + FIELD_PREP(VCNL4040_PS_MS_LED_I, VCNL4040_CONF3_PS_LED_I_16BITS)) + static const int vcnl4010_prox_sampling_frequency[][2] = { {1, 950000}, {3, 906250}, @@ -117,6 +144,44 @@ static const int vcnl4040_ps_it_times[][2] = { {0, 800}, }; +static const int vcnl4200_ps_it_times[][2] = { + {0, 96}, + {0, 144}, + {0, 192}, + {0, 384}, + {0, 768}, + {0, 864}, +}; + +static const int vcnl4040_als_it_times[][2] = { + {0, 80000}, + {0, 160000}, + {0, 320000}, + {0, 640000}, +}; + +static const int vcnl4200_als_it_times[][2] = { + {0, 50000}, + {0, 100000}, + {0, 200000}, + {0, 400000}, +}; + +static const int vcnl4040_ps_calibbias_ua[][2] = { + {0, 50000}, + {0, 75000}, + {0, 100000}, + {0, 120000}, + {0, 140000}, + {0, 160000}, + {0, 180000}, + {0, 200000}, +}; + +static const int vcnl4040_als_persistence[] = {1, 2, 4, 8}; +static const int vcnl4040_ps_persistence[] = {1, 2, 3, 4}; +static const int vcnl4040_ps_oversampling_ratio[] = {1, 2, 4, 8}; + #define VCNL4000_SLEEP_DELAY_MS 2000 /* before we enter pm_runtime_suspend */ enum vcnl4000_device_ids { @@ -138,6 +203,9 @@ struct vcnl4000_data { enum vcnl4000_device_ids id; int rev; int al_scale; + int ps_scale; + u8 ps_int; /* proximity interrupt mode */ + u8 als_int; /* ambient light interrupt mode*/ const struct vcnl4000_chip_spec *chip_spec; struct mutex vcnl4000_lock; struct vcnl4200_channel vcnl4200_al; @@ -150,11 +218,20 @@ struct vcnl4000_chip_spec { struct iio_chan_spec const *channels; const int num_channels; const struct iio_info *info; - bool irq_support; + const struct iio_buffer_setup_ops *buffer_setup_ops; int (*init)(struct vcnl4000_data *data); int (*measure_light)(struct vcnl4000_data *data, int *val); int (*measure_proximity)(struct vcnl4000_data *data, int *val); int (*set_power_state)(struct vcnl4000_data *data, bool on); + irqreturn_t (*irq_thread)(int irq, void *priv); + irqreturn_t (*trig_buffer_func)(int irq, void *priv); + + u8 int_reg; + const int(*ps_it_times)[][2]; + const int num_ps_it_times; + const int(*als_it_times)[][2]; + const int num_als_it_times; + const unsigned int ulux_step; }; static const struct i2c_device_id vcnl4000_id[] = { @@ -199,7 +276,6 @@ static int vcnl4000_init(struct vcnl4000_data *data) data->rev = ret & 0xf; data->al_scale = 250000; - mutex_init(&data->vcnl4000_lock); return data->chip_spec->set_power_state(data, true); }; @@ -254,6 +330,10 @@ static int vcnl4200_set_power_state(struct vcnl4000_data *data, bool on) { int ret; + /* Do not power down if interrupts are enabled */ + if (!on && (data->ps_int || data->als_int)) + return 0; + ret = vcnl4000_write_als_enable(data, on); if (ret < 0) return ret; @@ -274,6 +354,7 @@ static int vcnl4200_set_power_state(struct vcnl4000_data *data, bool on) static int vcnl4200_init(struct vcnl4000_data *data) { int ret, id; + u16 regval; ret = i2c_smbus_read_word_data(data->client, VCNL4200_DEV_ID); if (ret < 0) @@ -295,6 +376,8 @@ static int vcnl4200_init(struct vcnl4000_data *data) dev_dbg(&data->client->dev, "device id 0x%x", id); data->rev = (ret >> 8) & 0xf; + data->ps_int = 0; + data->als_int = 0; data->vcnl4200_al.reg = VCNL4200_AL_DATA; data->vcnl4200_ps.reg = VCNL4200_PS_DATA; @@ -304,19 +387,41 @@ static int vcnl4200_init(struct vcnl4000_data *data) data->vcnl4200_al.sampling_rate = ktime_set(0, 60000 * 1000); /* Default wait time is 4.8ms, add 20% tolerance. */ data->vcnl4200_ps.sampling_rate = ktime_set(0, 5760 * 1000); - data->al_scale = 24000; break; case VCNL4040_PROD_ID: /* Default wait time is 80ms, add 20% tolerance. */ data->vcnl4200_al.sampling_rate = ktime_set(0, 96000 * 1000); /* Default wait time is 5ms, add 20% tolerance. */ data->vcnl4200_ps.sampling_rate = ktime_set(0, 6000 * 1000); - data->al_scale = 120000; break; } + data->al_scale = data->chip_spec->ulux_step; + data->ps_scale = 16; mutex_init(&data->vcnl4200_al.lock); mutex_init(&data->vcnl4200_ps.lock); + /* Use 16 bits proximity sensor readings */ + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); + if (ret < 0) + return ret; + + regval = ret | VCNL4040_PS_CONF2_PS_HD; + ret = i2c_smbus_write_word_data(data->client, VCNL4200_PS_CONF1, + regval); + if (ret < 0) + return ret; + + /* Align proximity sensor sample rate to 16 bits data width */ + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF3); + if (ret < 0) + return ret; + + regval = ret | VCNL4040_CONF3_PS_SAMPLE_16BITS; + ret = i2c_smbus_write_word_data(data->client, VCNL4200_PS_CONF3, + regval); + if (ret < 0) + return ret; + ret = data->chip_spec->set_power_state(data, true); if (ret < 0) return ret; @@ -471,15 +576,64 @@ static bool vcnl4010_is_in_periodic_mode(struct vcnl4000_data *data) static int vcnl4000_set_pm_runtime_state(struct vcnl4000_data *data, bool on) { struct device *dev = &data->client->dev; + + if (on) + return pm_runtime_resume_and_get(dev); + + return pm_runtime_put_autosuspend(dev); +} + +static int vcnl4040_read_als_it(struct vcnl4000_data *data, int *val, int *val2) +{ int ret; - if (on) { - ret = pm_runtime_resume_and_get(dev); - } else { - pm_runtime_mark_last_busy(dev); - ret = pm_runtime_put_autosuspend(dev); + ret = i2c_smbus_read_word_data(data->client, VCNL4200_AL_CONF); + if (ret < 0) + return ret; + + ret = FIELD_GET(VCNL4040_ALS_CONF_IT, ret); + if (ret >= data->chip_spec->num_als_it_times) + return -EINVAL; + + *val = (*data->chip_spec->als_it_times)[ret][0]; + *val2 = (*data->chip_spec->als_it_times)[ret][1]; + + return 0; +} + +static ssize_t vcnl4040_write_als_it(struct vcnl4000_data *data, int val) +{ + unsigned int i; + int ret; + u16 regval; + + for (i = 0; i < data->chip_spec->num_als_it_times; i++) { + if (val == (*data->chip_spec->als_it_times)[i][1]) + break; } + if (i == data->chip_spec->num_als_it_times) + return -EINVAL; + + data->vcnl4200_al.sampling_rate = ktime_set(0, val * 1200); + data->al_scale = div_u64(mul_u32_u32(data->chip_spec->ulux_step, + (*data->chip_spec->als_it_times)[0][1]), + val); + + mutex_lock(&data->vcnl4000_lock); + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_AL_CONF); + if (ret < 0) + goto out_unlock; + + regval = FIELD_PREP(VCNL4040_ALS_CONF_IT, i); + regval |= (ret & ~VCNL4040_ALS_CONF_IT); + ret = i2c_smbus_write_word_data(data->client, + VCNL4200_AL_CONF, + regval); + +out_unlock: + mutex_unlock(&data->vcnl4000_lock); return ret; } @@ -493,11 +647,11 @@ static int vcnl4040_read_ps_it(struct vcnl4000_data *data, int *val, int *val2) ret = FIELD_GET(VCNL4040_PS_CONF2_PS_IT, ret); - if (ret >= ARRAY_SIZE(vcnl4040_ps_it_times)) + if (ret >= data->chip_spec->num_ps_it_times) return -EINVAL; - *val = vcnl4040_ps_it_times[ret][0]; - *val2 = vcnl4040_ps_it_times[ret][1]; + *val = (*data->chip_spec->ps_it_times)[ret][0]; + *val2 = (*data->chip_spec->ps_it_times)[ret][1]; return 0; } @@ -508,8 +662,8 @@ static ssize_t vcnl4040_write_ps_it(struct vcnl4000_data *data, int val) int ret, index = -1; u16 regval; - for (i = 0; i < ARRAY_SIZE(vcnl4040_ps_it_times); i++) { - if (val == vcnl4040_ps_it_times[i][1]) { + for (i = 0; i < data->chip_spec->num_ps_it_times; i++) { + if (val == (*data->chip_spec->ps_it_times)[i][1]) { index = i; break; } @@ -518,6 +672,8 @@ static ssize_t vcnl4040_write_ps_it(struct vcnl4000_data *data, int val) if (index < 0) return -EINVAL; + data->vcnl4200_ps.sampling_rate = ktime_set(0, val * 60 * NSEC_PER_USEC); + mutex_lock(&data->vcnl4000_lock); ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); @@ -534,6 +690,224 @@ out: return ret; } +static ssize_t vcnl4040_read_als_period(struct vcnl4000_data *data, int *val, int *val2) +{ + int ret, ret_pers, it; + int64_t val_c; + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_AL_CONF); + if (ret < 0) + return ret; + + ret_pers = FIELD_GET(VCNL4040_ALS_CONF_PERS, ret); + if (ret_pers >= ARRAY_SIZE(vcnl4040_als_persistence)) + return -EINVAL; + + it = FIELD_GET(VCNL4040_ALS_CONF_IT, ret); + if (it >= data->chip_spec->num_als_it_times) + return -EINVAL; + + val_c = mul_u32_u32((*data->chip_spec->als_it_times)[it][1], + vcnl4040_als_persistence[ret_pers]); + *val = div_u64_rem(val_c, MICRO, val2); + + return IIO_VAL_INT_PLUS_MICRO; +} + +static ssize_t vcnl4040_write_als_period(struct vcnl4000_data *data, int val, int val2) +{ + unsigned int i; + int ret, it; + u16 regval; + u64 val_n = mul_u32_u32(val, MICRO) + val2; + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_AL_CONF); + if (ret < 0) + return ret; + + it = FIELD_GET(VCNL4040_ALS_CONF_IT, ret); + if (it >= data->chip_spec->num_als_it_times) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(vcnl4040_als_persistence) - 1; i++) { + if (val_n < mul_u32_u32(vcnl4040_als_persistence[i], + (*data->chip_spec->als_it_times)[it][1])) + break; + } + + mutex_lock(&data->vcnl4000_lock); + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_AL_CONF); + if (ret < 0) + goto out_unlock; + + regval = FIELD_PREP(VCNL4040_ALS_CONF_PERS, i); + regval |= (ret & ~VCNL4040_ALS_CONF_PERS); + ret = i2c_smbus_write_word_data(data->client, VCNL4200_AL_CONF, + regval); + +out_unlock: + mutex_unlock(&data->vcnl4000_lock); + return ret; +} + +static ssize_t vcnl4040_read_ps_period(struct vcnl4000_data *data, int *val, int *val2) +{ + int ret, ret_pers, it; + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); + if (ret < 0) + return ret; + + ret_pers = FIELD_GET(VCNL4040_CONF1_PS_PERS, ret); + if (ret_pers >= ARRAY_SIZE(vcnl4040_ps_persistence)) + return -EINVAL; + + it = FIELD_GET(VCNL4040_PS_CONF2_PS_IT, ret); + if (it >= data->chip_spec->num_ps_it_times) + return -EINVAL; + + *val = (*data->chip_spec->ps_it_times)[it][0]; + *val2 = (*data->chip_spec->ps_it_times)[it][1] * + vcnl4040_ps_persistence[ret_pers]; + + return IIO_VAL_INT_PLUS_MICRO; +} + +static ssize_t vcnl4040_write_ps_period(struct vcnl4000_data *data, int val, int val2) +{ + int ret, it, i; + u16 regval; + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); + if (ret < 0) + return ret; + + it = FIELD_GET(VCNL4040_PS_CONF2_PS_IT, ret); + if (it >= data->chip_spec->num_ps_it_times) + return -EINVAL; + + if (val > 0) + i = ARRAY_SIZE(vcnl4040_ps_persistence) - 1; + else { + for (i = 0; i < ARRAY_SIZE(vcnl4040_ps_persistence) - 1; i++) { + if (val2 <= vcnl4040_ps_persistence[i] * + (*data->chip_spec->ps_it_times)[it][1]) + break; + } + } + + mutex_lock(&data->vcnl4000_lock); + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); + if (ret < 0) + goto out_unlock; + + regval = FIELD_PREP(VCNL4040_CONF1_PS_PERS, i); + regval |= (ret & ~VCNL4040_CONF1_PS_PERS); + ret = i2c_smbus_write_word_data(data->client, VCNL4200_PS_CONF1, + regval); + +out_unlock: + mutex_unlock(&data->vcnl4000_lock); + return ret; +} + +static ssize_t vcnl4040_read_ps_oversampling_ratio(struct vcnl4000_data *data, int *val) +{ + int ret; + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF3); + if (ret < 0) + return ret; + + ret = FIELD_GET(VCNL4040_PS_CONF3_MPS, ret); + if (ret >= ARRAY_SIZE(vcnl4040_ps_oversampling_ratio)) + return -EINVAL; + + *val = vcnl4040_ps_oversampling_ratio[ret]; + + return ret; +} + +static ssize_t vcnl4040_write_ps_oversampling_ratio(struct vcnl4000_data *data, int val) +{ + unsigned int i; + int ret; + u16 regval; + + for (i = 0; i < ARRAY_SIZE(vcnl4040_ps_oversampling_ratio); i++) { + if (val == vcnl4040_ps_oversampling_ratio[i]) + break; + } + + if (i >= ARRAY_SIZE(vcnl4040_ps_oversampling_ratio)) + return -EINVAL; + + mutex_lock(&data->vcnl4000_lock); + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF3); + if (ret < 0) + goto out_unlock; + + regval = FIELD_PREP(VCNL4040_PS_CONF3_MPS, i); + regval |= (ret & ~VCNL4040_PS_CONF3_MPS); + ret = i2c_smbus_write_word_data(data->client, VCNL4200_PS_CONF3, + regval); + +out_unlock: + mutex_unlock(&data->vcnl4000_lock); + return ret; +} + +static ssize_t vcnl4040_read_ps_calibbias(struct vcnl4000_data *data, int *val, int *val2) +{ + int ret; + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF3); + if (ret < 0) + return ret; + + ret = FIELD_GET(VCNL4040_PS_MS_LED_I, ret); + if (ret >= ARRAY_SIZE(vcnl4040_ps_calibbias_ua)) + return -EINVAL; + + *val = vcnl4040_ps_calibbias_ua[ret][0]; + *val2 = vcnl4040_ps_calibbias_ua[ret][1]; + + return ret; +} + +static ssize_t vcnl4040_write_ps_calibbias(struct vcnl4000_data *data, int val) +{ + unsigned int i; + int ret; + u16 regval; + + for (i = 0; i < ARRAY_SIZE(vcnl4040_ps_calibbias_ua); i++) { + if (val == vcnl4040_ps_calibbias_ua[i][1]) + break; + } + + if (i >= ARRAY_SIZE(vcnl4040_ps_calibbias_ua)) + return -EINVAL; + + mutex_lock(&data->vcnl4000_lock); + + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF3); + if (ret < 0) + goto out_unlock; + + regval = (ret & ~VCNL4040_PS_MS_LED_I); + regval |= FIELD_PREP(VCNL4040_PS_MS_LED_I, i); + ret = i2c_smbus_write_word_data(data->client, VCNL4200_PS_CONF3, + regval); + +out_unlock: + mutex_unlock(&data->vcnl4000_lock); + return ret; +} + static int vcnl4000_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) @@ -555,8 +929,9 @@ static int vcnl4000_read_raw(struct iio_dev *indio_dev, break; case IIO_PROXIMITY: ret = data->chip_spec->measure_proximity(data, val); + *val2 = data->ps_scale; if (!ret) - ret = IIO_VAL_INT; + ret = IIO_VAL_FRACTIONAL; break; default: ret = -EINVAL; @@ -571,12 +946,39 @@ static int vcnl4000_read_raw(struct iio_dev *indio_dev, *val2 = data->al_scale; return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_INT_TIME: - if (chan->type != IIO_PROXIMITY) + switch (chan->type) { + case IIO_LIGHT: + ret = vcnl4040_read_als_it(data, val, val2); + break; + case IIO_PROXIMITY: + ret = vcnl4040_read_ps_it(data, val, val2); + break; + default: return -EINVAL; - ret = vcnl4040_read_ps_it(data, val, val2); + } if (ret < 0) return ret; return IIO_VAL_INT_PLUS_MICRO; + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + switch (chan->type) { + case IIO_PROXIMITY: + ret = vcnl4040_read_ps_oversampling_ratio(data, val); + if (ret < 0) + return ret; + return IIO_VAL_INT; + default: + return -EINVAL; + } + case IIO_CHAN_INFO_CALIBBIAS: + switch (chan->type) { + case IIO_PROXIMITY: + ret = vcnl4040_read_ps_calibbias(data, val, val2); + if (ret < 0) + return ret; + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } default: return -EINVAL; } @@ -592,9 +994,28 @@ static int vcnl4040_write_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_INT_TIME: if (val != 0) return -EINVAL; - if (chan->type != IIO_PROXIMITY) + switch (chan->type) { + case IIO_LIGHT: + return vcnl4040_write_als_it(data, val2); + case IIO_PROXIMITY: + return vcnl4040_write_ps_it(data, val2); + default: + return -EINVAL; + } + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + switch (chan->type) { + case IIO_PROXIMITY: + return vcnl4040_write_ps_oversampling_ratio(data, val); + default: return -EINVAL; - return vcnl4040_write_ps_it(data, val2); + } + case IIO_CHAN_INFO_CALIBBIAS: + switch (chan->type) { + case IIO_PROXIMITY: + return vcnl4040_write_ps_calibbias(data, val2); + default: + return -EINVAL; + } default: return -EINVAL; } @@ -605,12 +1026,44 @@ static int vcnl4040_read_avail(struct iio_dev *indio_dev, const int **vals, int *type, int *length, long mask) { + struct vcnl4000_data *data = iio_priv(indio_dev); + switch (mask) { case IIO_CHAN_INFO_INT_TIME: - *vals = (int *)vcnl4040_ps_it_times; + switch (chan->type) { + case IIO_LIGHT: + *vals = (int *)(*data->chip_spec->als_it_times); + *length = 2 * data->chip_spec->num_als_it_times; + break; + case IIO_PROXIMITY: + *vals = (int *)(*data->chip_spec->ps_it_times); + *length = 2 * data->chip_spec->num_ps_it_times; + break; + default: + return -EINVAL; + } *type = IIO_VAL_INT_PLUS_MICRO; - *length = 2 * ARRAY_SIZE(vcnl4040_ps_it_times); return IIO_AVAIL_LIST; + case IIO_CHAN_INFO_OVERSAMPLING_RATIO: + switch (chan->type) { + case IIO_PROXIMITY: + *vals = (int *)vcnl4040_ps_oversampling_ratio; + *length = ARRAY_SIZE(vcnl4040_ps_oversampling_ratio); + *type = IIO_VAL_INT; + return IIO_AVAIL_LIST; + default: + return -EINVAL; + } + case IIO_CHAN_INFO_CALIBBIAS: + switch (chan->type) { + case IIO_PROXIMITY: + *vals = (int *)vcnl4040_ps_calibbias_ua; + *length = 2 * ARRAY_SIZE(vcnl4040_ps_calibbias_ua); + *type = IIO_VAL_INT_PLUS_MICRO; + return IIO_AVAIL_LIST; + default: + return -EINVAL; + } default: return -EINVAL; } @@ -626,9 +1079,8 @@ static int vcnl4010_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: case IIO_CHAN_INFO_SCALE: - ret = iio_device_claim_direct_mode(indio_dev); - if (ret) - return ret; + if (!iio_device_claim_direct(indio_dev)) + return -EBUSY; /* Protect against event capture. */ if (vcnl4010_is_in_periodic_mode(data)) { @@ -638,7 +1090,7 @@ static int vcnl4010_read_raw(struct iio_dev *indio_dev, mask); } - iio_device_release_direct_mode(indio_dev); + iio_device_release_direct(indio_dev); return ret; case IIO_CHAN_INFO_SAMP_FREQ: switch (chan->type) { @@ -699,9 +1151,8 @@ static int vcnl4010_write_raw(struct iio_dev *indio_dev, int ret; struct vcnl4000_data *data = iio_priv(indio_dev); - ret = iio_device_claim_direct_mode(indio_dev); - if (ret) - return ret; + if (!iio_device_claim_direct(indio_dev)) + return -EBUSY; /* Protect against event capture. */ if (vcnl4010_is_in_periodic_mode(data)) { @@ -725,7 +1176,7 @@ static int vcnl4010_write_raw(struct iio_dev *indio_dev, } end: - iio_device_release_direct_mode(indio_dev); + iio_device_release_direct(indio_dev); return ret; } @@ -795,6 +1246,137 @@ static int vcnl4010_write_event(struct iio_dev *indio_dev, } } +static int vcnl4040_read_event(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + enum iio_event_info info, + int *val, int *val2) +{ + int ret; + struct vcnl4000_data *data = iio_priv(indio_dev); + + switch (chan->type) { + case IIO_LIGHT: + switch (info) { + case IIO_EV_INFO_PERIOD: + return vcnl4040_read_als_period(data, val, val2); + case IIO_EV_INFO_VALUE: + switch (dir) { + case IIO_EV_DIR_RISING: + ret = i2c_smbus_read_word_data(data->client, + VCNL4040_ALS_THDH_LM); + break; + case IIO_EV_DIR_FALLING: + ret = i2c_smbus_read_word_data(data->client, + VCNL4040_ALS_THDL_LM); + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + break; + case IIO_PROXIMITY: + switch (info) { + case IIO_EV_INFO_PERIOD: + return vcnl4040_read_ps_period(data, val, val2); + case IIO_EV_INFO_VALUE: + switch (dir) { + case IIO_EV_DIR_RISING: + ret = i2c_smbus_read_word_data(data->client, + VCNL4040_PS_THDH_LM); + break; + case IIO_EV_DIR_FALLING: + ret = i2c_smbus_read_word_data(data->client, + VCNL4040_PS_THDL_LM); + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; +} + +static int vcnl4040_write_event(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + enum iio_event_info info, + int val, int val2) +{ + int ret; + struct vcnl4000_data *data = iio_priv(indio_dev); + + switch (chan->type) { + case IIO_LIGHT: + switch (info) { + case IIO_EV_INFO_PERIOD: + return vcnl4040_write_als_period(data, val, val2); + case IIO_EV_INFO_VALUE: + switch (dir) { + case IIO_EV_DIR_RISING: + ret = i2c_smbus_write_word_data(data->client, + VCNL4040_ALS_THDH_LM, + val); + break; + case IIO_EV_DIR_FALLING: + ret = i2c_smbus_write_word_data(data->client, + VCNL4040_ALS_THDL_LM, + val); + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + break; + case IIO_PROXIMITY: + switch (info) { + case IIO_EV_INFO_PERIOD: + return vcnl4040_write_ps_period(data, val, val2); + case IIO_EV_INFO_VALUE: + switch (dir) { + case IIO_EV_DIR_RISING: + ret = i2c_smbus_write_word_data(data->client, + VCNL4040_PS_THDH_LM, + val); + break; + case IIO_EV_DIR_FALLING: + ret = i2c_smbus_write_word_data(data->client, + VCNL4040_PS_THDL_LM, + val); + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + if (ret < 0) + return ret; + return IIO_VAL_INT; +} + static bool vcnl4010_is_thr_enabled(struct vcnl4000_data *data) { int ret; @@ -821,53 +1403,59 @@ static int vcnl4010_read_event_config(struct iio_dev *indio_dev, } } -static int vcnl4010_config_threshold(struct iio_dev *indio_dev, bool state) +static int vcnl4010_config_threshold_enable(struct vcnl4000_data *data) { - struct vcnl4000_data *data = iio_priv(indio_dev); int ret; - int icr; - int command; - if (state) { - ret = iio_device_claim_direct_mode(indio_dev); - if (ret) - return ret; + /* Enable periodic measurement of proximity data. */ + ret = i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, + VCNL4000_SELF_TIMED_EN | VCNL4000_PROX_EN); + if (ret < 0) + return ret; - /* Enable periodic measurement of proximity data. */ - command = VCNL4000_SELF_TIMED_EN | VCNL4000_PROX_EN; + /* + * Enable interrupts on threshold, for proximity data by + * default. + */ + return i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, + VCNL4010_INT_THR_EN); +} - /* - * Enable interrupts on threshold, for proximity data by - * default. - */ - icr = VCNL4010_INT_THR_EN; - } else { - if (!vcnl4010_is_thr_enabled(data)) - return 0; +static int vcnl4010_config_threshold_disable(struct vcnl4000_data *data) +{ + int ret; - command = 0; - icr = 0; - } + if (!vcnl4010_is_thr_enabled(data)) + return 0; - ret = i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, - command); + ret = i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, 0); if (ret < 0) - goto end; + return ret; - ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, icr); + return i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, 0); +} -end: - if (state) - iio_device_release_direct_mode(indio_dev); +static int vcnl4010_config_threshold(struct iio_dev *indio_dev, bool state) +{ + struct vcnl4000_data *data = iio_priv(indio_dev); + int ret; - return ret; + if (state) { + if (!iio_device_claim_direct(indio_dev)) + return -EBUSY; + ret = vcnl4010_config_threshold_enable(data); + iio_device_release_direct(indio_dev); + return ret; + } else { + return vcnl4010_config_threshold_disable(data); + } } static int vcnl4010_write_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, - int state) + bool state) { switch (chan->type) { case IIO_PROXIMITY: @@ -877,6 +1465,137 @@ static int vcnl4010_write_event_config(struct iio_dev *indio_dev, } } +static int vcnl4040_read_event_config(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir) +{ + int ret; + struct vcnl4000_data *data = iio_priv(indio_dev); + + switch (chan->type) { + case IIO_LIGHT: + ret = i2c_smbus_read_word_data(data->client, VCNL4200_AL_CONF); + if (ret < 0) + return ret; + + data->als_int = FIELD_GET(VCNL4040_ALS_CONF_INT_EN, ret); + + return data->als_int; + case IIO_PROXIMITY: + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); + if (ret < 0) + return ret; + + data->ps_int = FIELD_GET(VCNL4040_PS_CONF2_PS_INT, ret); + + return (dir == IIO_EV_DIR_RISING) ? + FIELD_GET(VCNL4040_PS_IF_AWAY, ret) : + FIELD_GET(VCNL4040_PS_IF_CLOSE, ret); + default: + return -EINVAL; + } +} + +static int vcnl4040_write_event_config(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + enum iio_event_type type, + enum iio_event_direction dir, + bool state) +{ + int ret = -EINVAL; + u16 val, mask; + struct vcnl4000_data *data = iio_priv(indio_dev); + + mutex_lock(&data->vcnl4000_lock); + + switch (chan->type) { + case IIO_LIGHT: + ret = i2c_smbus_read_word_data(data->client, VCNL4200_AL_CONF); + if (ret < 0) + goto out; + + mask = VCNL4040_ALS_CONF_INT_EN; + if (state) + val = (ret | mask); + else + val = (ret & ~mask); + + data->als_int = FIELD_GET(VCNL4040_ALS_CONF_INT_EN, val); + ret = i2c_smbus_write_word_data(data->client, VCNL4200_AL_CONF, + val); + break; + case IIO_PROXIMITY: + ret = i2c_smbus_read_word_data(data->client, VCNL4200_PS_CONF1); + if (ret < 0) + goto out; + + if (dir == IIO_EV_DIR_RISING) + mask = VCNL4040_PS_IF_AWAY; + else + mask = VCNL4040_PS_IF_CLOSE; + + val = state ? (ret | mask) : (ret & ~mask); + + data->ps_int = FIELD_GET(VCNL4040_PS_CONF2_PS_INT, val); + ret = i2c_smbus_write_word_data(data->client, VCNL4200_PS_CONF1, + val); + break; + default: + break; + } + +out: + mutex_unlock(&data->vcnl4000_lock); + + return ret; +} + +static irqreturn_t vcnl4040_irq_thread(int irq, void *p) +{ + struct iio_dev *indio_dev = p; + struct vcnl4000_data *data = iio_priv(indio_dev); + int ret; + + ret = i2c_smbus_read_word_data(data->client, data->chip_spec->int_reg); + if (ret < 0) + return IRQ_HANDLED; + + if (ret & VCNL4040_PS_IF_CLOSE) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_RISING), + iio_get_time_ns(indio_dev)); + } + + if (ret & VCNL4040_PS_IF_AWAY) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 0, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_FALLING), + iio_get_time_ns(indio_dev)); + } + + if (ret & VCNL4040_ALS_FALLING) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE(IIO_LIGHT, 0, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_FALLING), + iio_get_time_ns(indio_dev)); + } + + if (ret & VCNL4040_ALS_RISING) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE(IIO_LIGHT, 0, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_RISING), + iio_get_time_ns(indio_dev)); + } + + return IRQ_HANDLED; +} + static ssize_t vcnl4000_read_near_level(struct iio_dev *indio_dev, uintptr_t priv, const struct iio_chan_spec *chan, @@ -887,13 +1606,144 @@ static ssize_t vcnl4000_read_near_level(struct iio_dev *indio_dev, return sprintf(buf, "%u\n", data->near_level); } +static irqreturn_t vcnl4010_irq_thread(int irq, void *p) +{ + struct iio_dev *indio_dev = p; + struct vcnl4000_data *data = iio_priv(indio_dev); + unsigned long isr; + int ret; + + ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR); + if (ret < 0) + goto end; + + isr = ret; + + if (isr & VCNL4010_INT_THR) { + if (test_bit(VCNL4010_INT_THR_LOW, &isr)) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE( + IIO_PROXIMITY, + 1, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_FALLING), + iio_get_time_ns(indio_dev)); + } + + if (test_bit(VCNL4010_INT_THR_HIGH, &isr)) { + iio_push_event(indio_dev, + IIO_UNMOD_EVENT_CODE( + IIO_PROXIMITY, + 1, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_RISING), + iio_get_time_ns(indio_dev)); + } + + i2c_smbus_write_byte_data(data->client, VCNL4010_ISR, + isr & VCNL4010_INT_THR); + } + + if (isr & VCNL4010_INT_DRDY && iio_buffer_enabled(indio_dev)) + iio_trigger_poll_nested(indio_dev->trig); + +end: + return IRQ_HANDLED; +} + +static irqreturn_t vcnl4010_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct vcnl4000_data *data = iio_priv(indio_dev); + const unsigned long *active_scan_mask = indio_dev->active_scan_mask; + struct { + u16 chan; + aligned_s64 ts; + } scan = { }; + bool data_read = false; + unsigned long isr; + int val = 0; + int ret; + + ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR); + if (ret < 0) + goto end; + + isr = ret; + + if (test_bit(0, active_scan_mask)) { + if (test_bit(VCNL4010_INT_PROXIMITY, &isr)) { + ret = vcnl4000_read_data(data, + VCNL4000_PS_RESULT_HI, + &val); + if (ret < 0) + goto end; + + scan.chan = val; + data_read = true; + } + } + + ret = i2c_smbus_write_byte_data(data->client, VCNL4010_ISR, + isr & VCNL4010_INT_DRDY); + if (ret < 0) + goto end; + + if (!data_read) + goto end; + + iio_push_to_buffers_with_ts(indio_dev, &scan, sizeof(scan), + iio_get_time_ns(indio_dev)); + +end: + iio_trigger_notify_done(indio_dev->trig); + return IRQ_HANDLED; +} + +static int vcnl4010_buffer_postenable(struct iio_dev *indio_dev) +{ + struct vcnl4000_data *data = iio_priv(indio_dev); + int ret; + int cmd; + + /* Do not enable the buffer if we are already capturing events. */ + if (vcnl4010_is_in_periodic_mode(data)) + return -EBUSY; + + ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, + VCNL4010_INT_PROX_EN); + if (ret < 0) + return ret; + + cmd = VCNL4000_SELF_TIMED_EN | VCNL4000_PROX_EN; + return i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, cmd); +} + +static int vcnl4010_buffer_predisable(struct iio_dev *indio_dev) +{ + struct vcnl4000_data *data = iio_priv(indio_dev); + int ret; + + ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, 0); + if (ret < 0) + return ret; + + return i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, 0); +} + +static const struct iio_buffer_setup_ops vcnl4010_buffer_ops = { + .postenable = &vcnl4010_buffer_postenable, + .predisable = &vcnl4010_buffer_predisable, +}; + static const struct iio_chan_spec_ext_info vcnl4000_ext_info[] = { { .name = "nearlevel", .shared = IIO_SEPARATE, .read = vcnl4000_read_near_level, }, - { /* sentinel */ } + { } }; static const struct iio_event_spec vcnl4000_event_spec[] = { @@ -912,6 +1762,38 @@ static const struct iio_event_spec vcnl4000_event_spec[] = { } }; +static const struct iio_event_spec vcnl4040_als_event_spec[] = { + { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_RISING, + .mask_separate = BIT(IIO_EV_INFO_VALUE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_FALLING, + .mask_separate = BIT(IIO_EV_INFO_VALUE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_EITHER, + .mask_separate = BIT(IIO_EV_INFO_ENABLE) | BIT(IIO_EV_INFO_PERIOD), + }, +}; + +static const struct iio_event_spec vcnl4040_event_spec[] = { + { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_RISING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_FALLING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_EITHER, + .mask_separate = BIT(IIO_EV_INFO_PERIOD), + }, +}; + static const struct iio_chan_spec vcnl4000_channels[] = { { .type = IIO_LIGHT, @@ -953,13 +1835,23 @@ static const struct iio_chan_spec vcnl4040_channels[] = { { .type = IIO_LIGHT, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_SCALE), + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_INT_TIME), + .info_mask_separate_available = BIT(IIO_CHAN_INFO_INT_TIME), + .event_spec = vcnl4040_als_event_spec, + .num_event_specs = ARRAY_SIZE(vcnl4040_als_event_spec), }, { .type = IIO_PROXIMITY, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_INT_TIME), - .info_mask_separate_available = BIT(IIO_CHAN_INFO_INT_TIME), + BIT(IIO_CHAN_INFO_INT_TIME) | + BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO) | + BIT(IIO_CHAN_INFO_CALIBBIAS), + .info_mask_separate_available = BIT(IIO_CHAN_INFO_INT_TIME) | + BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO) | + BIT(IIO_CHAN_INFO_CALIBBIAS), .ext_info = vcnl4000_ext_info, + .event_spec = vcnl4040_event_spec, + .num_event_specs = ARRAY_SIZE(vcnl4040_event_spec), } }; @@ -980,6 +1872,10 @@ static const struct iio_info vcnl4010_info = { static const struct iio_info vcnl4040_info = { .read_raw = vcnl4000_read_raw, .write_raw = vcnl4040_write_raw, + .read_event_value = vcnl4040_read_event, + .write_event_value = vcnl4040_write_event, + .read_event_config = vcnl4040_read_event_config, + .write_event_config = vcnl4040_write_event_config, .read_avail = vcnl4040_read_avail, }; @@ -993,7 +1889,6 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .channels = vcnl4000_channels, .num_channels = ARRAY_SIZE(vcnl4000_channels), .info = &vcnl4000_info, - .irq_support = false, }, [VCNL4010] = { .prod = "VCNL4010/4020", @@ -1004,7 +1899,9 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .channels = vcnl4010_channels, .num_channels = ARRAY_SIZE(vcnl4010_channels), .info = &vcnl4010_info, - .irq_support = true, + .irq_thread = vcnl4010_irq_thread, + .trig_buffer_func = vcnl4010_trigger_handler, + .buffer_setup_ops = &vcnl4010_buffer_ops, }, [VCNL4040] = { .prod = "VCNL4040", @@ -1015,7 +1912,13 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .channels = vcnl4040_channels, .num_channels = ARRAY_SIZE(vcnl4040_channels), .info = &vcnl4040_info, - .irq_support = false, + .irq_thread = vcnl4040_irq_thread, + .int_reg = VCNL4040_INT_FLAGS, + .ps_it_times = &vcnl4040_ps_it_times, + .num_ps_it_times = ARRAY_SIZE(vcnl4040_ps_it_times), + .als_it_times = &vcnl4040_als_it_times, + .num_als_it_times = ARRAY_SIZE(vcnl4040_als_it_times), + .ulux_step = 100000, }, [VCNL4200] = { .prod = "VCNL4200", @@ -1023,141 +1926,19 @@ static const struct vcnl4000_chip_spec vcnl4000_chip_spec_cfg[] = { .measure_light = vcnl4200_measure_light, .measure_proximity = vcnl4200_measure_proximity, .set_power_state = vcnl4200_set_power_state, - .channels = vcnl4000_channels, + .channels = vcnl4040_channels, .num_channels = ARRAY_SIZE(vcnl4000_channels), - .info = &vcnl4000_info, - .irq_support = false, + .info = &vcnl4040_info, + .irq_thread = vcnl4040_irq_thread, + .int_reg = VCNL4200_INT_FLAGS, + .ps_it_times = &vcnl4200_ps_it_times, + .num_ps_it_times = ARRAY_SIZE(vcnl4200_ps_it_times), + .als_it_times = &vcnl4200_als_it_times, + .num_als_it_times = ARRAY_SIZE(vcnl4200_als_it_times), + .ulux_step = 24000, }, }; -static irqreturn_t vcnl4010_irq_thread(int irq, void *p) -{ - struct iio_dev *indio_dev = p; - struct vcnl4000_data *data = iio_priv(indio_dev); - unsigned long isr; - int ret; - - ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR); - if (ret < 0) - goto end; - - isr = ret; - - if (isr & VCNL4010_INT_THR) { - if (test_bit(VCNL4010_INT_THR_LOW, &isr)) { - iio_push_event(indio_dev, - IIO_UNMOD_EVENT_CODE( - IIO_PROXIMITY, - 1, - IIO_EV_TYPE_THRESH, - IIO_EV_DIR_FALLING), - iio_get_time_ns(indio_dev)); - } - - if (test_bit(VCNL4010_INT_THR_HIGH, &isr)) { - iio_push_event(indio_dev, - IIO_UNMOD_EVENT_CODE( - IIO_PROXIMITY, - 1, - IIO_EV_TYPE_THRESH, - IIO_EV_DIR_RISING), - iio_get_time_ns(indio_dev)); - } - - i2c_smbus_write_byte_data(data->client, VCNL4010_ISR, - isr & VCNL4010_INT_THR); - } - - if (isr & VCNL4010_INT_DRDY && iio_buffer_enabled(indio_dev)) - iio_trigger_poll_chained(indio_dev->trig); - -end: - return IRQ_HANDLED; -} - -static irqreturn_t vcnl4010_trigger_handler(int irq, void *p) -{ - struct iio_poll_func *pf = p; - struct iio_dev *indio_dev = pf->indio_dev; - struct vcnl4000_data *data = iio_priv(indio_dev); - const unsigned long *active_scan_mask = indio_dev->active_scan_mask; - u16 buffer[8] __aligned(8) = {0}; /* 1x16-bit + naturally aligned ts */ - bool data_read = false; - unsigned long isr; - int val = 0; - int ret; - - ret = i2c_smbus_read_byte_data(data->client, VCNL4010_ISR); - if (ret < 0) - goto end; - - isr = ret; - - if (test_bit(0, active_scan_mask)) { - if (test_bit(VCNL4010_INT_PROXIMITY, &isr)) { - ret = vcnl4000_read_data(data, - VCNL4000_PS_RESULT_HI, - &val); - if (ret < 0) - goto end; - - buffer[0] = val; - data_read = true; - } - } - - ret = i2c_smbus_write_byte_data(data->client, VCNL4010_ISR, - isr & VCNL4010_INT_DRDY); - if (ret < 0) - goto end; - - if (!data_read) - goto end; - - iio_push_to_buffers_with_timestamp(indio_dev, buffer, - iio_get_time_ns(indio_dev)); - -end: - iio_trigger_notify_done(indio_dev->trig); - return IRQ_HANDLED; -} - -static int vcnl4010_buffer_postenable(struct iio_dev *indio_dev) -{ - struct vcnl4000_data *data = iio_priv(indio_dev); - int ret; - int cmd; - - /* Do not enable the buffer if we are already capturing events. */ - if (vcnl4010_is_in_periodic_mode(data)) - return -EBUSY; - - ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, - VCNL4010_INT_PROX_EN); - if (ret < 0) - return ret; - - cmd = VCNL4000_SELF_TIMED_EN | VCNL4000_PROX_EN; - return i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, cmd); -} - -static int vcnl4010_buffer_predisable(struct iio_dev *indio_dev) -{ - struct vcnl4000_data *data = iio_priv(indio_dev); - int ret; - - ret = i2c_smbus_write_byte_data(data->client, VCNL4010_INT_CTRL, 0); - if (ret < 0) - return ret; - - return i2c_smbus_write_byte_data(data->client, VCNL4000_COMMAND, 0); -} - -static const struct iio_buffer_setup_ops vcnl4010_buffer_ops = { - .postenable = &vcnl4010_buffer_postenable, - .predisable = &vcnl4010_buffer_predisable, -}; - static const struct iio_trigger_ops vcnl4010_trigger_ops = { .validate_device = iio_trigger_validate_own_device, }; @@ -1197,6 +1978,8 @@ static int vcnl4000_probe(struct i2c_client *client) data->id = id->driver_data; data->chip_spec = &vcnl4000_chip_spec_cfg[data->id]; + mutex_init(&data->vcnl4000_lock); + ret = data->chip_spec->init(data); if (ret < 0) return ret; @@ -1214,22 +1997,25 @@ static int vcnl4000_probe(struct i2c_client *client) indio_dev->name = VCNL4000_DRV_NAME; indio_dev->modes = INDIO_DIRECT_MODE; - if (client->irq && data->chip_spec->irq_support) { + if (data->chip_spec->trig_buffer_func && + data->chip_spec->buffer_setup_ops) { ret = devm_iio_triggered_buffer_setup(&client->dev, indio_dev, NULL, - vcnl4010_trigger_handler, - &vcnl4010_buffer_ops); + data->chip_spec->trig_buffer_func, + data->chip_spec->buffer_setup_ops); if (ret < 0) { dev_err(&client->dev, "unable to setup iio triggered buffer\n"); return ret; } + } + if (client->irq && data->chip_spec->irq_thread) { ret = devm_request_threaded_irq(&client->dev, client->irq, - NULL, vcnl4010_irq_thread, + NULL, data->chip_spec->irq_thread, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, - "vcnl4010_irq", + "vcnl4000_irq", indio_dev); if (ret < 0) { dev_err(&client->dev, "irq request failed\n"); @@ -1280,7 +2066,7 @@ static const struct of_device_id vcnl_4000_of_match[] = { .compatible = "vishay,vcnl4200", .data = (void *)VCNL4200, }, - {}, + { } }; MODULE_DEVICE_TABLE(of, vcnl_4000_of_match); @@ -1326,7 +2112,7 @@ static struct i2c_driver vcnl4000_driver = { .pm = pm_ptr(&vcnl4000_pm_ops), .of_match_table = vcnl_4000_of_match, }, - .probe_new = vcnl4000_probe, + .probe = vcnl4000_probe, .id_table = vcnl4000_id, .remove = vcnl4000_remove, }; |