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#ifndef __EPM_ADC_H
#define __EPM_ADC_H
#include <linux/i2c.h>
struct epm_chan_request {
/* EPM ADC device index. 0 - ADC1, 1 - ADC2 */
uint32_t device_idx;
/* Channel number within the EPM ADC device */
uint32_t channel_idx;
/* The data meaningful for each individual channel whether it is
* voltage, current etc. */
int32_t physical;
};
struct epm_psoc_init_resp {
uint8_t cmd;
uint8_t version;
uint8_t compatible_ver;
uint8_t firm_ver[3];
uint8_t num_dev;
uint8_t num_channel;
};
struct epm_psoc_channel_configure {
uint8_t cmd;
uint8_t device_num;
uint32_t channel_num;
};
struct epm_psoc_set_avg {
uint8_t cmd;
uint8_t avg_period;
uint8_t return_code;
};
struct epm_psoc_get_data {
uint8_t cmd;
uint8_t dev_num;
uint8_t chan_num;
uint32_t timestamp_resp_value;
uint32_t reading_value;
};
struct epm_psoc_get_buffered_data {
uint8_t cmd;
uint8_t dev_num;
uint8_t status_mask;
uint8_t chan_idx;
uint32_t chan_mask;
uint32_t timestamp_start;
uint32_t timestamp_end;
uint8_t buff_data[48];
};
struct epm_psoc_system_time_stamp {
uint8_t cmd;
uint32_t timestamp;
};
struct epm_psoc_set_channel {
uint8_t cmd;
uint8_t dev_num;
uint32_t channel_mask;
};
struct result_buffer {
uint32_t channel;
uint32_t avg_buffer_sample;
uint32_t result;
};
struct epm_psoc_get_avg_buffered_switch_data {
uint8_t cmd;
uint8_t status;
uint32_t timestamp_start;
uint32_t channel_mask;
uint8_t avg_data[54];
struct result_buffer data[54];
};
struct epm_psoc_set_channel_switch {
uint8_t cmd;
uint8_t dev;
uint32_t delay;
};
struct epm_psoc_set_vadc {
uint8_t cmd;
uint8_t vadc_dev;
uint32_t vadc_voltage;
};
struct epm_chan_properties {
uint32_t resistorvalue;
uint32_t gain;
};
#ifdef __KERNEL__
struct epm_adc_platform_data {
struct epm_chan_properties *channel;
uint32_t num_channels;
uint32_t num_adc;
uint32_t chan_per_adc;
uint32_t chan_per_mux;
struct i2c_board_info epm_i2c_board_info;
uint32_t bus_id;
uint32_t gpio_expander_base_addr;
};
#endif
#define EPM_ADC_IOCTL_CODE 0x91
#define EPM_ADC_REQUEST _IOWR(EPM_ADC_IOCTL_CODE, 1, \
struct epm_chan_request)
#define EPM_ADC_INIT _IOR(EPM_ADC_IOCTL_CODE, 2, \
uint32_t)
#define EPM_ADC_DEINIT _IOR(EPM_ADC_IOCTL_CODE, 3, \
uint32_t)
#define EPM_PSOC_ADC_INIT _IOR(EPM_ADC_IOCTL_CODE, 4, \
struct epm_psoc_init_resp)
#define EPM_PSOC_ADC_CHANNEL_ENABLE _IOWR(EPM_ADC_IOCTL_CODE, 5, \
struct epm_psoc_channel_configure)
#define EPM_PSOC_ADC_CHANNEL_DISABLE _IOWR(EPM_ADC_IOCTL_CODE, 6, \
struct epm_psoc_channel_configure)
#define EPM_PSOC_ADC_SET_AVERAGING _IOWR(EPM_ADC_IOCTL_CODE, 7, \
struct epm_psoc_set_avg)
#define EPM_PSOC_ADC_GET_LAST_MEASUREMENT _IOWR(EPM_ADC_IOCTL_CODE, 8, \
struct epm_psoc_get_data)
#define EPM_PSOC_ADC_GET_BUFFERED_DATA _IOWR(EPM_ADC_IOCTL_CODE, 9, \
struct epm_psoc_get_buffered_data)
#define EPM_PSOC_ADC_GET_SYSTEM_TIMESTAMP _IOWR(EPM_ADC_IOCTL_CODE, 10, \
struct epm_psoc_system_time_stamp)
#define EPM_PSOC_ADC_SET_SYSTEM_TIMESTAMP _IOWR(EPM_ADC_IOCTL_CODE, 11, \
struct epm_psoc_system_time_stamp)
#define EPM_PSOC_ADC_GET_AVERAGE_DATA _IOWR(EPM_ADC_IOCTL_CODE, 12, \
struct epm_psoc_get_avg_buffered_switch_data)
#define EPM_PSOC_SET_CHANNEL_SWITCH _IOWR(EPM_ADC_IOCTL_CODE, 13, \
struct epm_psoc_set_channel_switch)
#define EPM_PSOC_CLEAR_BUFFER _IOWR(EPM_ADC_IOCTL_CODE, 14, \
uint32_t)
#define EPM_PSOC_ADC_SET_VADC_REFERENCE _IOWR(EPM_ADC_IOCTL_CODE, 15, \
struct epm_psoc_set_vadc)
#endif /* __EPM_ADC_H */
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