diff options
| -rw-r--r-- | drivers/staging/iio/gyro/Makefile | 1 | ||||
| -rw-r--r-- | drivers/staging/iio/gyro/adis16260.h | 84 | ||||
| -rw-r--r-- | drivers/staging/iio/gyro/adis16260_core.c | 483 | ||||
| -rw-r--r-- | drivers/staging/iio/gyro/adis16260_ring.c | 136 | ||||
| -rw-r--r-- | drivers/staging/iio/gyro/adis16260_trigger.c | 75 |
5 files changed, 94 insertions, 685 deletions
diff --git a/drivers/staging/iio/gyro/Makefile b/drivers/staging/iio/gyro/Makefile index 9ba5ec151705..1303569e5c8a 100644 --- a/drivers/staging/iio/gyro/Makefile +++ b/drivers/staging/iio/gyro/Makefile @@ -12,7 +12,6 @@ adis16130-y := adis16130_core.o obj-$(CONFIG_ADIS16130) += adis16130.o adis16260-y := adis16260_core.o -adis16260-$(CONFIG_IIO_BUFFER) += adis16260_ring.o adis16260_trigger.o obj-$(CONFIG_ADIS16260) += adis16260.o adis16251-y := adis16251_core.o diff --git a/drivers/staging/iio/gyro/adis16260.h b/drivers/staging/iio/gyro/adis16260.h index 4c4b25129c6c..ea5eba205bbf 100644 --- a/drivers/staging/iio/gyro/adis16260.h +++ b/drivers/staging/iio/gyro/adis16260.h @@ -1,12 +1,11 @@ #ifndef SPI_ADIS16260_H_ #define SPI_ADIS16260_H_ + #include "adis16260_platform_data.h" +#include "../imu/adis.h" #define ADIS16260_STARTUP_DELAY 220 /* ms */ -#define ADIS16260_READ_REG(a) a -#define ADIS16260_WRITE_REG(a) ((a) | 0x80) - #define ADIS16260_FLASH_CNT 0x00 /* Flash memory write count */ #define ADIS16260_SUPPLY_OUT 0x02 /* Power supply measurement */ #define ADIS16260_GYRO_OUT 0x04 /* X-axis gyroscope output */ @@ -34,8 +33,6 @@ * convert to decimal = 16,265/16,260 */ #define ADIS16260_SERIAL_NUM 0x58 /* Serial number */ -#define ADIS16260_OUTPUTS 5 - #define ADIS16260_ERROR_ACTIVE (1<<14) #define ADIS16260_NEW_DATA (1<<15) @@ -60,13 +57,13 @@ /* DIAG_STAT */ #define ADIS16260_DIAG_STAT_ALARM2 (1<<9) #define ADIS16260_DIAG_STAT_ALARM1 (1<<8) -#define ADIS16260_DIAG_STAT_FLASH_CHK (1<<6) -#define ADIS16260_DIAG_STAT_SELF_TEST (1<<5) -#define ADIS16260_DIAG_STAT_OVERFLOW (1<<4) -#define ADIS16260_DIAG_STAT_SPI_FAIL (1<<3) -#define ADIS16260_DIAG_STAT_FLASH_UPT (1<<2) -#define ADIS16260_DIAG_STAT_POWER_HIGH (1<<1) -#define ADIS16260_DIAG_STAT_POWER_LOW (1<<0) +#define ADIS16260_DIAG_STAT_FLASH_CHK_BIT 6 +#define ADIS16260_DIAG_STAT_SELF_TEST_BIT 5 +#define ADIS16260_DIAG_STAT_OVERFLOW_BIT 4 +#define ADIS16260_DIAG_STAT_SPI_FAIL_BIT 3 +#define ADIS16260_DIAG_STAT_FLASH_UPT_BIT 2 +#define ADIS16260_DIAG_STAT_POWER_HIGH_BIT 1 +#define ADIS16260_DIAG_STAT_POWER_LOW_BIT 0 /* GLOB_CMD */ #define ADIS16260_GLOB_CMD_SW_RESET (1<<7) @@ -75,82 +72,27 @@ #define ADIS16260_GLOB_CMD_FAC_CALIB (1<<1) #define ADIS16260_GLOB_CMD_AUTO_NULL (1<<0) -#define ADIS16260_MAX_TX 24 -#define ADIS16260_MAX_RX 24 - #define ADIS16260_SPI_SLOW (u32)(300 * 1000) #define ADIS16260_SPI_BURST (u32)(1000 * 1000) #define ADIS16260_SPI_FAST (u32)(2000 * 1000) /** * struct adis16260_state - device instance specific data - * @us: actual spi_device - * @trig: data ready trigger registered with iio - * @buf_lock: mutex to protect tx and rx * @negate: negate the scale parameter - * @tx: transmit buffer - * @rx: receive buffer **/ struct adis16260_state { - struct spi_device *us; - struct iio_trigger *trig; - struct mutex buf_lock; - unsigned negate:1; - u8 tx[ADIS16260_MAX_TX] ____cacheline_aligned; - u8 rx[ADIS16260_MAX_RX]; + unsigned negate:1; + struct adis adis; }; -int adis16260_set_irq(struct iio_dev *indio_dev, bool enable); - /* At the moment triggers are only used for ring buffer * filling. This may change! */ -#define ADIS16260_SCAN_SUPPLY 0 -#define ADIS16260_SCAN_GYRO 1 +#define ADIS16260_SCAN_GYRO 0 +#define ADIS16260_SCAN_SUPPLY 1 #define ADIS16260_SCAN_AUX_ADC 2 #define ADIS16260_SCAN_TEMP 3 #define ADIS16260_SCAN_ANGL 4 -#ifdef CONFIG_IIO_BUFFER -void adis16260_remove_trigger(struct iio_dev *indio_dev); -int adis16260_probe_trigger(struct iio_dev *indio_dev); - -ssize_t adis16260_read_data_from_ring(struct device *dev, - struct device_attribute *attr, - char *buf); - - -int adis16260_configure_ring(struct iio_dev *indio_dev); -void adis16260_unconfigure_ring(struct iio_dev *indio_dev); - -#else /* CONFIG_IIO_BUFFER */ - -static inline void adis16260_remove_trigger(struct iio_dev *indio_dev) -{ -} - -static inline int adis16260_probe_trigger(struct iio_dev *indio_dev) -{ - return 0; -} - -static inline ssize_t -adis16260_read_data_from_ring(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - return 0; -} - -static int adis16260_configure_ring(struct iio_dev *indio_dev) -{ - return 0; -} - -static inline void adis16260_unconfigure_ring(struct iio_dev *indio_dev) -{ -} - -#endif /* CONFIG_IIO_BUFFER */ #endif /* SPI_ADIS16260_H_ */ diff --git a/drivers/staging/iio/gyro/adis16260_core.c b/drivers/staging/iio/gyro/adis16260_core.c index e822460502be..820547baae30 100644 --- a/drivers/staging/iio/gyro/adis16260_core.c +++ b/drivers/staging/iio/gyro/adis16260_core.c @@ -24,132 +24,13 @@ #include "adis16260.h" -static int adis16260_check_status(struct iio_dev *indio_dev); - -/** - * adis16260_spi_write_reg_8() - write single byte to a register - * @indio_dev: iio_dev for the device - * @reg_address: the address of the register to be written - * @val: the value to write - **/ -static int adis16260_spi_write_reg_8(struct iio_dev *indio_dev, - u8 reg_address, - u8 val) -{ - int ret; - struct adis16260_state *st = iio_priv(indio_dev); - - mutex_lock(&st->buf_lock); - st->tx[0] = ADIS16260_WRITE_REG(reg_address); - st->tx[1] = val; - - ret = spi_write(st->us, st->tx, 2); - mutex_unlock(&st->buf_lock); - - return ret; -} - -/** - * adis16260_spi_write_reg_16() - write 2 bytes to a pair of registers - * @indio_dev: iio_dev for the device - * @reg_address: the address of the lower of the two registers. Second register - * is assumed to have address one greater. - * @val: value to be written - **/ -static int adis16260_spi_write_reg_16(struct iio_dev *indio_dev, - u8 lower_reg_address, - u16 value) -{ - int ret; - struct spi_message msg; - struct adis16260_state *st = iio_priv(indio_dev); - struct spi_transfer xfers[] = { - { - .tx_buf = st->tx, - .bits_per_word = 8, - .len = 2, - .cs_change = 1, - .delay_usecs = 20, - }, { - .tx_buf = st->tx + 2, - .bits_per_word = 8, - .len = 2, - .delay_usecs = 20, - }, - }; - - mutex_lock(&st->buf_lock); - st->tx[0] = ADIS16260_WRITE_REG(lower_reg_address); - st->tx[1] = value & 0xFF; - st->tx[2] = ADIS16260_WRITE_REG(lower_reg_address + 1); - st->tx[3] = (value >> 8) & 0xFF; - - spi_message_init(&msg); - spi_message_add_tail(&xfers[0], &msg); - spi_message_add_tail(&xfers[1], &msg); - ret = spi_sync(st->us, &msg); - mutex_unlock(&st->buf_lock); - - return ret; -} - -/** - * adis16260_spi_read_reg_16() - read 2 bytes from a 16-bit register - * @indio_dev: iio_dev for the device - * @reg_address: the address of the lower of the two registers. Second register - * is assumed to have address one greater. - * @val: somewhere to pass back the value read - **/ -static int adis16260_spi_read_reg_16(struct iio_dev *indio_dev, - u8 lower_reg_address, - u16 *val) -{ - struct spi_message msg; - struct adis16260_state *st = iio_priv(indio_dev); - int ret; - struct spi_transfer xfers[] = { - { - .tx_buf = st->tx, - .bits_per_word = 8, - .len = 2, - .cs_change = 1, - .delay_usecs = 30, - }, { - .rx_buf = st->rx, - .bits_per_word = 8, - .len = 2, - .delay_usecs = 30, - }, - }; - - mutex_lock(&st->buf_lock); - st->tx[0] = ADIS16260_READ_REG(lower_reg_address); - st->tx[1] = 0; - - spi_message_init(&msg); - spi_message_add_tail(&xfers[0], &msg); - spi_message_add_tail(&xfers[1], &msg); - ret = spi_sync(st->us, &msg); - if (ret) { - dev_err(&st->us->dev, - "problem when reading 16 bit register 0x%02X", - lower_reg_address); - goto error_ret; - } - *val = (st->rx[0] << 8) | st->rx[1]; - -error_ret: - mutex_unlock(&st->buf_lock); - return ret; -} - static ssize_t adis16260_read_frequency_available(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct adis16260_state *st = iio_priv(indio_dev); - if (spi_get_device_id(st->us)->driver_data) + if (spi_get_device_id(st->adis.spi)->driver_data) return sprintf(buf, "%s\n", "0.129 ~ 256"); else return sprintf(buf, "%s\n", "256 2048"); @@ -164,13 +45,11 @@ static ssize_t adis16260_read_frequency(struct device *dev, int ret, len = 0; u16 t; int sps; - ret = adis16260_spi_read_reg_16(indio_dev, - ADIS16260_SMPL_PRD, - &t); + ret = adis_read_reg_16(&st->adis, ADIS16260_SMPL_PRD, &t); if (ret) return ret; - if (spi_get_device_id(st->us)->driver_data) /* If an adis16251 */ + if (spi_get_device_id(st->adis.spi)->driver_data) /* If an adis16251 */ sps = (t & ADIS16260_SMPL_PRD_TIME_BASE) ? 8 : 256; else sps = (t & ADIS16260_SMPL_PRD_TIME_BASE) ? 66 : 2048; @@ -197,7 +76,7 @@ static ssize_t adis16260_write_frequency(struct device *dev, return -EINVAL; mutex_lock(&indio_dev->mlock); - if (spi_get_device_id(st->us)) { + if (spi_get_device_id(st->adis.spi)->driver_data) { t = (256 / val); if (t > 0) t--; @@ -209,10 +88,10 @@ static ssize_t adis16260_write_frequency(struct device *dev, t &= ADIS16260_SMPL_PRD_DIV_MASK; } if ((t & ADIS16260_SMPL_PRD_DIV_MASK) >= 0x0A) - st->us->max_speed_hz = ADIS16260_SPI_SLOW; + st->adis.spi->max_speed_hz = ADIS16260_SPI_SLOW; else - st->us->max_speed_hz = ADIS16260_SPI_FAST; - ret = adis16260_spi_write_reg_8(indio_dev, + st->adis.spi->max_speed_hz = ADIS16260_SPI_FAST; + ret = adis_write_reg_8(&st->adis, ADIS16260_SMPL_PRD, t); @@ -221,140 +100,20 @@ static ssize_t adis16260_write_frequency(struct device *dev, return ret ? ret : len; } -static int adis16260_reset(struct iio_dev *indio_dev) -{ - int ret; - ret = adis16260_spi_write_reg_8(indio_dev, - ADIS16260_GLOB_CMD, - ADIS16260_GLOB_CMD_SW_RESET); - if (ret) - dev_err(&indio_dev->dev, "problem resetting device"); - - return ret; -} - -int adis16260_set_irq(struct iio_dev *indio_dev, bool enable) -{ - int ret; - u16 msc; - ret = adis16260_spi_read_reg_16(indio_dev, ADIS16260_MSC_CTRL, &msc); - if (ret) - goto error_ret; - - msc |= ADIS16260_MSC_CTRL_DATA_RDY_POL_HIGH; - if (enable) - msc |= ADIS16260_MSC_CTRL_DATA_RDY_EN; - else - msc &= ~ADIS16260_MSC_CTRL_DATA_RDY_EN; - - ret = adis16260_spi_write_reg_16(indio_dev, ADIS16260_MSC_CTRL, msc); - if (ret) - goto error_ret; - -error_ret: - return ret; -} - /* Power down the device */ static int adis16260_stop_device(struct iio_dev *indio_dev) { + struct adis16260_state *st = iio_priv(indio_dev); int ret; u16 val = ADIS16260_SLP_CNT_POWER_OFF; - ret = adis16260_spi_write_reg_16(indio_dev, ADIS16260_SLP_CNT, val); + ret = adis_write_reg_16(&st->adis, ADIS16260_SLP_CNT, val); if (ret) dev_err(&indio_dev->dev, "problem with turning device off: SLP_CNT"); return ret; } -static int adis16260_self_test(struct iio_dev *indio_dev) -{ - int ret; - ret = adis16260_spi_write_reg_16(indio_dev, - ADIS16260_MSC_CTRL, - ADIS16260_MSC_CTRL_MEM_TEST); - if (ret) { - dev_err(&indio_dev->dev, "problem starting self test"); - goto err_ret; - } - - adis16260_check_status(indio_dev); - -err_ret: - return ret; -} - -static int adis16260_check_status(struct iio_dev *indio_dev) -{ - u16 status; - int ret; - struct device *dev = &indio_dev->dev; - - ret = adis16260_spi_read_reg_16(indio_dev, - ADIS16260_DIAG_STAT, - &status); - - if (ret < 0) { - dev_err(dev, "Reading status failed\n"); - goto error_ret; - } - ret = status & 0x7F; - if (status & ADIS16260_DIAG_STAT_FLASH_CHK) - dev_err(dev, "Flash checksum error\n"); - if (status & ADIS16260_DIAG_STAT_SELF_TEST) - dev_err(dev, "Self test error\n"); - if (status & ADIS16260_DIAG_STAT_OVERFLOW) - dev_err(dev, "Sensor overrange\n"); - if (status & ADIS16260_DIAG_STAT_SPI_FAIL) - dev_err(dev, "SPI failure\n"); - if (status & ADIS16260_DIAG_STAT_FLASH_UPT) - dev_err(dev, "Flash update failed\n"); - if (status & ADIS16260_DIAG_STAT_POWER_HIGH) - dev_err(dev, "Power supply above 5.25V\n"); - if (status & ADIS16260_DIAG_STAT_POWER_LOW) - dev_err(dev, "Power supply below 4.75V\n"); - -error_ret: - return ret; -} - -static int adis16260_initial_setup(struct iio_dev *indio_dev) -{ - int ret; - struct device *dev = &indio_dev->dev; - - /* Disable IRQ */ - ret = adis16260_set_irq(indio_dev, false); - if (ret) { - dev_err(dev, "disable irq failed"); - goto err_ret; - } - - /* Do self test */ - ret = adis16260_self_test(indio_dev); - if (ret) { - dev_err(dev, "self test failure"); - goto err_ret; - } - - /* Read status register to check the result */ - ret = adis16260_check_status(indio_dev); - if (ret) { - adis16260_reset(indio_dev); - dev_err(dev, "device not playing ball -> reset"); - msleep(ADIS16260_STARTUP_DELAY); - ret = adis16260_check_status(indio_dev); - if (ret) { - dev_err(dev, "giving up"); - goto err_ret; - } - } - -err_ret: - return ret; -} - static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO, adis16260_read_frequency, adis16260_write_frequency); @@ -362,100 +121,26 @@ static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO, static IIO_DEVICE_ATTR(sampling_frequency_available, S_IRUGO, adis16260_read_frequency_available, NULL, 0); -enum adis16260_channel { - gyro, - temp, - in_supply, - in_aux, - angle, -}; #define ADIS16260_GYRO_CHANNEL_SET(axis, mod) \ - struct iio_chan_spec adis16260_channels_##axis[] = { \ - { \ - .type = IIO_ANGL_VEL, \ - .modified = 1, \ - .channel2 = mod, \ - .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \ - IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT | \ - IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT | \ - IIO_CHAN_INFO_SCALE_SEPARATE_BIT, \ - .address = gyro, \ - .scan_index = ADIS16260_SCAN_GYRO, \ - .scan_type = { \ - .sign = 's', \ - .realbits = 14, \ - .storagebits = 16, \ - }, \ - }, { \ - .type = IIO_ANGL, \ - .modified = 1, \ - .channel2 = mod, \ - .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT, \ - .address = angle, \ - .scan_index = ADIS16260_SCAN_ANGL, \ - .scan_type = { \ - .sign = 'u', \ - .realbits = 14, \ - .storagebits = 16, \ - }, \ - }, { \ - .type = IIO_TEMP, \ - .indexed = 1, \ - .channel = 0, \ - .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \ - IIO_CHAN_INFO_OFFSET_SEPARATE_BIT | \ - IIO_CHAN_INFO_SCALE_SEPARATE_BIT, \ - .address = temp, \ - .scan_index = ADIS16260_SCAN_TEMP, \ - .scan_type = { \ - .sign = 'u', \ - .realbits = 12, \ - .storagebits = 16, \ - }, \ - }, { \ - .type = IIO_VOLTAGE, \ - .indexed = 1, \ - .channel = 0, \ - .extend_name = "supply", \ - .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \ - IIO_CHAN_INFO_SCALE_SEPARATE_BIT, \ - .address = in_supply, \ - .scan_index = ADIS16260_SCAN_SUPPLY, \ - .scan_type = { \ - .sign = 'u', \ - .realbits = 12, \ - .storagebits = 16, \ - }, \ - }, { \ - .type = IIO_VOLTAGE, \ - .indexed = 1, \ - .channel = 1, \ - .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \ - IIO_CHAN_INFO_SCALE_SEPARATE_BIT, \ - .address = in_aux, \ - .scan_index = ADIS16260_SCAN_AUX_ADC, \ - .scan_type = { \ - .sign = 'u', \ - .realbits = 12, \ - .storagebits = 16, \ - }, \ - }, \ - IIO_CHAN_SOFT_TIMESTAMP(5), \ - } +struct iio_chan_spec adis16260_channels_##axis[] = { \ + ADIS_GYRO_CHAN(mod, ADIS16260_GYRO_OUT, ADIS16260_SCAN_GYRO, \ + IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT | \ + IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT, 14), \ + ADIS_INCLI_CHAN(mod, ADIS16260_ANGL_OUT, ADIS16260_SCAN_ANGL, 0, 14), \ + ADIS_TEMP_CHAN(ADIS16260_TEMP_OUT, ADIS16260_SCAN_TEMP, 12), \ + ADIS_SUPPLY_CHAN(ADIS16260_SUPPLY_OUT, ADIS16260_SCAN_SUPPLY, 12), \ + ADIS_AUX_ADC_CHAN(ADIS16260_AUX_ADC, ADIS16260_SCAN_AUX_ADC, 12), \ + IIO_CHAN_SOFT_TIMESTAMP(5), \ +} -static const ADIS16260_GYRO_CHANNEL_SET(x, IIO_MOD_X); -static const ADIS16260_GYRO_CHANNEL_SET(y, IIO_MOD_Y); -static const ADIS16260_GYRO_CHANNEL_SET(z, IIO_MOD_Z); - -static const u8 adis16260_addresses[5][3] = { - [gyro] = { ADIS16260_GYRO_OUT, - ADIS16260_GYRO_OFF, - ADIS16260_GYRO_SCALE }, - [angle] = { ADIS16260_ANGL_OUT }, - [in_supply] = { ADIS16260_SUPPLY_OUT }, - [in_aux] = { ADIS16260_AUX_ADC }, - [temp] = { ADIS16260_TEMP_OUT }, +static const ADIS16260_GYRO_CHANNEL_SET(x, X); +static const ADIS16260_GYRO_CHANNEL_SET(y, Y); +static const ADIS16260_GYRO_CHANNEL_SET(z, Z); + +static const u8 adis16260_addresses[][2] = { + [ADIS16260_SCAN_GYRO] = { ADIS16260_GYRO_OFF, ADIS16260_GYRO_SCALE }, }; + static int adis16260_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, @@ -469,34 +154,13 @@ static int adis16260_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: - mutex_lock(&indio_dev->mlock); - addr = adis16260_addresses[chan->address][0]; - ret = adis16260_spi_read_reg_16(indio_dev, addr, &val16); - if (ret) { - mutex_unlock(&indio_dev->mlock); - return ret; - } - - if (val16 & ADIS16260_ERROR_ACTIVE) { - ret = adis16260_check_status(indio_dev); - if (ret) { - mutex_unlock(&indio_dev->mlock); - return ret; - } - } - val16 = val16 & ((1 << chan->scan_type.realbits) - 1); - if (chan->scan_type.sign == 's') - val16 = (s16)(val16 << - (16 - chan->scan_type.realbits)) >> - (16 - chan->scan_type.realbits); - *val = val16; - mutex_unlock(&indio_dev->mlock); - return IIO_VAL_INT; + return adis_single_conversion(indio_dev, chan, + ADIS16260_ERROR_ACTIVE, val); case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_ANGL_VEL: *val = 0; - if (spi_get_device_id(st->us)->driver_data) { + if (spi_get_device_id(st->adis.spi)->driver_data) { /* 0.01832 degree / sec */ *val2 = IIO_DEGREE_TO_RAD(18320); } else { @@ -533,8 +197,8 @@ static int adis16260_read_raw(struct iio_dev *indio_dev, return -EINVAL; } mutex_lock(&indio_dev->mlock); - addr = adis16260_addresses[chan->address][1]; - ret = adis16260_spi_read_reg_16(indio_dev, addr, &val16); + addr = adis16260_addresses[chan->scan_index][0]; + ret = adis_read_reg_16(&st->adis, addr, &val16); if (ret) { mutex_unlock(&indio_dev->mlock); return ret; @@ -553,8 +217,8 @@ static int adis16260_read_raw(struct iio_dev *indio_dev, return -EINVAL; } mutex_lock(&indio_dev->mlock); - addr = adis16260_addresses[chan->address][2]; - ret = adis16260_spi_read_reg_16(indio_dev, addr, &val16); + addr = adis16260_addresses[chan->scan_index][1]; + ret = adis_read_reg_16(&st->adis, addr, &val16); if (ret) { mutex_unlock(&indio_dev->mlock); return ret; @@ -572,18 +236,19 @@ static int adis16260_write_raw(struct iio_dev *indio_dev, int val2, long mask) { + struct adis16260_state *st = iio_priv(indio_dev); int bits = 12; s16 val16; u8 addr; switch (mask) { case IIO_CHAN_INFO_CALIBBIAS: val16 = val & ((1 << bits) - 1); - addr = adis16260_addresses[chan->address][1]; - return adis16260_spi_write_reg_16(indio_dev, addr, val16); + addr = adis16260_addresses[chan->scan_index][0]; + return adis_write_reg_16(&st->adis, addr, val16); case IIO_CHAN_INFO_CALIBSCALE: val16 = val & ((1 << bits) - 1); - addr = adis16260_addresses[chan->address][2]; - return adis16260_spi_write_reg_16(indio_dev, addr, val16); + addr = adis16260_addresses[chan->scan_index][1]; + return adis_write_reg_16(&st->adis, addr, val16); } return -EINVAL; } @@ -605,6 +270,36 @@ static const struct iio_info adis16260_info = { .driver_module = THIS_MODULE, }; +static const char * const adis1620_status_error_msgs[] = { + [ADIS16260_DIAG_STAT_FLASH_CHK_BIT] = "Flash checksum error", + [ADIS16260_DIAG_STAT_SELF_TEST_BIT] = "Self test error", + [ADIS16260_DIAG_STAT_OVERFLOW_BIT] = "Sensor overrange", + [ADIS16260_DIAG_STAT_SPI_FAIL_BIT] = "SPI failure", + [ADIS16260_DIAG_STAT_FLASH_UPT_BIT] = "Flash update failed", + [ADIS16260_DIAG_STAT_POWER_HIGH_BIT] = "Power supply above 5.25", + [ADIS16260_DIAG_STAT_POWER_LOW_BIT] = "Power supply below 4.75", +}; + +static const struct adis_data adis16260_data = { + .write_delay = 30, + .read_delay = 30, + .msc_ctrl_reg = ADIS16260_MSC_CTRL, + .glob_cmd_reg = ADIS16260_GLOB_CMD, + .diag_stat_reg = ADIS16260_DIAG_STAT, + + .self_test_mask = ADIS16260_MSC_CTRL_MEM_TEST, + .startup_delay = ADIS16260_STARTUP_DELAY, + + .status_error_msgs = adis1620_status_error_msgs, + .status_error_mask = BIT(ADIS16260_DIAG_STAT_FLASH_CHK_BIT) | + BIT(ADIS16260_DIAG_STAT_SELF_TEST_BIT) | + BIT(ADIS16260_DIAG_STAT_OVERFLOW_BIT) | + BIT(ADIS16260_DIAG_STAT_SPI_FAIL_BIT) | + BIT(ADIS16260_DIAG_STAT_FLASH_UPT_BIT) | + BIT(ADIS16260_DIAG_STAT_POWER_HIGH_BIT) | + BIT(ADIS16260_DIAG_STAT_POWER_LOW_BIT), +}; + static int __devinit adis16260_probe(struct spi_device *spi) { int ret; @@ -624,10 +319,7 @@ static int __devinit adis16260_probe(struct spi_device *spi) /* this is only used for removal purposes */ spi_set_drvdata(spi, indio_dev); - st->us = spi; - mutex_init(&st->buf_lock); - - indio_dev->name = spi_get_device_id(st->us)->name; + indio_dev->name = spi_get_device_id(spi)->name; indio_dev->dev.parent = &spi->dev; indio_dev->info = &adis16260_info; indio_dev->num_channels @@ -651,17 +343,14 @@ static int __devinit adis16260_probe(struct spi_device *spi) indio_dev->num_channels = ARRAY_SIZE(adis16260_channels_x); indio_dev->modes = INDIO_DIRECT_MODE; - ret = adis16260_configure_ring(indio_dev); + ret = adis_init(&st->adis, indio_dev, spi, &adis16260_data); + if (ret) + goto error_free_dev; + + ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL); if (ret) goto error_free_dev; - ret = iio_buffer_register(indio_dev, - indio_dev->channels, - ARRAY_SIZE(adis16260_channels_x)); - if (ret) { - printk(KERN_ERR "failed to initialize the ring\n"); - goto error_unreg_ring_funcs; - } if (indio_dev->buffer) { /* Set default scan mode */ iio_scan_mask_set(indio_dev, indio_dev->buffer, @@ -675,28 +364,19 @@ static int __devinit adis16260_probe(struct spi_device *spi) iio_scan_mask_set(indio_dev, indio_dev->buffer, ADIS16260_SCAN_ANGL); } - if (spi->irq) { - ret = adis16260_probe_trigger(indio_dev); - if (ret) - goto error_uninitialize_ring; - } /* Get the device into a sane initial state */ - ret = adis16260_initial_setup(indio_dev); + ret = adis_initial_startup(&st->adis); if (ret) - goto error_remove_trigger; + goto error_cleanup_buffer_trigger; ret = iio_device_register(indio_dev); if (ret) - goto error_remove_trigger; + goto error_cleanup_buffer_trigger; return 0; -error_remove_trigger: - adis16260_remove_trigger(indio_dev); -error_uninitialize_ring: - iio_buffer_unregister(indio_dev); -error_unreg_ring_funcs: - adis16260_unconfigure_ring(indio_dev); +error_cleanup_buffer_trigger: + adis_cleanup_buffer_and_trigger(&st->adis, indio_dev); error_free_dev: iio_device_free(indio_dev); error_ret: @@ -706,12 +386,11 @@ error_ret: static int __devexit adis16260_remove(struct spi_device *spi) { struct iio_dev *indio_dev = spi_get_drvdata(spi); + struct adis16260_state *st = iio_priv(indio_dev); iio_device_unregister(indio_dev); adis16260_stop_device(indio_dev); - adis16260_remove_trigger(indio_dev); - iio_buffer_unregister(indio_dev); - adis16260_unconfigure_ring(indio_dev); + adis_cleanup_buffer_and_trigger(&st->adis, indio_dev); iio_device_free(indio_dev); return 0; diff --git a/drivers/staging/iio/gyro/adis16260_ring.c b/drivers/staging/iio/gyro/adis16260_ring.c deleted file mode 100644 index d6c48f850a9e..000000000000 --- a/drivers/staging/iio/gyro/adis16260_ring.c +++ /dev/null @@ -1,136 +0,0 @@ -#include <linux/export.h> -#include <linux/interrupt.h> -#include <linux/mutex.h> -#include <linux/kernel.h> -#include <linux/spi/spi.h> -#include <linux/slab.h> - -#include <linux/iio/iio.h> -#include "../ring_sw.h" -#include <linux/iio/trigger_consumer.h> -#include "adis16260.h" - -/** - * adis16260_read_ring_data() read data registers which will be placed into ring - * @indio_dev: the IIO device - * @rx: somewhere to pass back the value read - **/ -static int adis16260_read_ring_data(struct iio_dev *indio_dev, u8 *rx) -{ - struct spi_message msg; - struct adis16260_state *st = iio_priv(indio_dev); - struct spi_transfer xfers[ADIS16260_OUTPUTS + 1]; - int ret; - int i; - - mutex_lock(&st->buf_lock); - - spi_message_init(&msg); - - memset(xfers, 0, sizeof(xfers)); - for (i = 0; i <= ADIS16260_OUTPUTS; i++) { - xfers[i].bits_per_word = 8; - xfers[i].cs_change = 1; - xfers[i].len = 2; - xfers[i].delay_usecs = 30; - xfers[i].tx_buf = st->tx + 2 * i; - if (i < 2) /* SUPPLY_OUT:0x02 GYRO_OUT:0x04 */ - st->tx[2 * i] - = ADIS16260_READ_REG(ADIS16260_SUPPLY_OUT - + 2 * i); - else /* 0x06 to 0x09 is reserved */ - st->tx[2 * i] - = ADIS16260_READ_REG(ADIS16260_SUPPLY_OUT - + 2 * i + 4); - st->tx[2 * i + 1] = 0; - if (i >= 1) - xfers[i].rx_buf = rx + 2 * (i - 1); - spi_message_add_tail(&xfers[i], &msg); - } - - ret = spi_sync(st->us, &msg); - if (ret) - dev_err(&st->us->dev, "problem when burst reading"); - - mutex_unlock(&st->buf_lock); - - return ret; -} - -static irqreturn_t adis16260_trigger_handler(int irq, void *p) -{ - struct iio_poll_func *pf = p; - struct iio_dev *indio_dev = pf->indio_dev; - struct adis16260_state *st = iio_priv(indio_dev); - int i = 0; - s16 *data; - - data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); - if (data == NULL) { - dev_err(&st->us->dev, "memory alloc failed in ring bh"); - goto done; - } - - if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength) && - adis16260_read_ring_data(indio_dev, st->rx) >= 0) - for (; i < bitmap_weight(indio_dev->active_scan_mask, - indio_dev->masklength); i++) - data[i] = be16_to_cpup((__be16 *)&(st->rx[i*2])); - - /* Guaranteed to be aligned with 8 byte boundary */ - if (indio_dev->scan_timestamp) - *((s64 *)(data + ((i + 3)/4)*4)) = pf->timestamp; - - iio_push_to_buffers(indio_dev, (u8 *)data); - - kfree(data); -done: - iio_trigger_notify_done(indio_dev->trig); - - return IRQ_HANDLED; -} - -void adis16260_unconfigure_ring(struct iio_dev *indio_dev) -{ - iio_dealloc_pollfunc(indio_dev->pollfunc); - iio_sw_rb_free(indio_dev->buffer); -} - -static const struct iio_buffer_setup_ops adis16260_ring_setup_ops = { - .preenable = &iio_sw_buffer_preenable, - .postenable = &iio_triggered_buffer_postenable, - .predisable = &iio_triggered_buffer_predisable, -}; - -int adis16260_configure_ring(struct iio_dev *indio_dev) -{ - int ret = 0; - struct iio_buffer *ring; - - ring = iio_sw_rb_allocate(indio_dev); - if (!ring) { - ret = -ENOMEM; - return ret; - } - indio_dev->buffer = ring; - ring->scan_timestamp = true; - indio_dev->setup_ops = &adis16260_ring_setup_ops; - - indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time, - &adis16260_trigger_handler, - IRQF_ONESHOT, - indio_dev, - "adis16260_consumer%d", - indio_dev->id); - if (indio_dev->pollfunc == NULL) { - ret = -ENOMEM; - goto error_iio_sw_rb_free; - } - - indio_dev->modes |= INDIO_BUFFER_TRIGGERED; - return 0; - -error_iio_sw_rb_free: - iio_sw_rb_free(indio_dev->buffer); - return ret; -} diff --git a/drivers/staging/iio/gyro/adis16260_trigger.c b/drivers/staging/iio/gyro/adis16260_trigger.c deleted file mode 100644 index 034559e4d5b9..000000000000 --- a/drivers/staging/iio/gyro/adis16260_trigger.c +++ /dev/null @@ -1,75 +0,0 @@ -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/spi/spi.h> -#include <linux/export.h> - -#include <linux/iio/iio.h> -#include <linux/iio/trigger.h> -#include "adis16260.h" - -/** - * adis16260_data_rdy_trigger_set_state() set datardy interrupt state - **/ -static int adis16260_data_rdy_trigger_set_state(struct iio_trigger *trig, - bool state) -{ - struct iio_dev *indio_dev = trig->private_data; - - dev_dbg(&indio_dev->dev, "%s (%d)\n", __func__, state); - return adis16260_set_irq(indio_dev, state); -} - -static const struct iio_trigger_ops adis16260_trigger_ops = { - .owner = THIS_MODULE, - .set_trigger_state = &adis16260_data_rdy_trigger_set_state, -}; - -int adis16260_probe_trigger(struct iio_dev *indio_dev) -{ - int ret; - struct adis16260_state *st = iio_priv(indio_dev); - - st->trig = iio_trigger_alloc("%s-dev%d", - spi_get_device_id(st->us)->name, - indio_dev->id); - if (st->trig == NULL) { - ret = -ENOMEM; - goto error_ret; - } - - ret = request_irq(st->us->irq, - &iio_trigger_generic_data_rdy_poll, - IRQF_TRIGGER_RISING, - "adis16260", - st->trig); - if (ret) - goto error_free_trig; - - st->trig->dev.parent = &st->us->dev; - st->trig->ops = &adis16260_trigger_ops; - st->trig->private_data = indio_dev; - ret = iio_trigger_register(st->trig); - - /* select default trigger */ - indio_dev->trig = st->trig; - if (ret) - goto error_free_irq; - - return 0; - -error_free_irq: - free_irq(st->us->irq, st->trig); -error_free_trig: - iio_trigger_free(st->trig); -error_ret: - return ret; -} - -void adis16260_remove_trigger(struct iio_dev *indio_dev) -{ - struct adis16260_state *st = iio_priv(indio_dev); - - iio_trigger_unregister(st->trig); - free_irq(st->us->irq, st->trig); - iio_trigger_free(st->trig); -} |