161 lines
3.5 KiB
C
161 lines
3.5 KiB
C
#ifndef __EPM_ADC_H
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#define __EPM_ADC_H
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#include <linux/i2c.h>
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struct epm_chan_request {
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/* EPM ADC device index. 0 - ADC1, 1 - ADC2 */
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uint32_t device_idx;
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/* Channel number within the EPM ADC device */
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uint32_t channel_idx;
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/* The data meaningful for each individual channel whether it is
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* voltage, current etc. */
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int32_t physical;
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};
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struct epm_psoc_init_resp {
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uint8_t cmd;
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uint8_t version;
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uint8_t compatible_ver;
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uint8_t firm_ver[3];
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uint8_t num_dev;
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uint8_t num_channel;
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};
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struct epm_psoc_channel_configure {
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uint8_t cmd;
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uint8_t device_num;
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uint32_t channel_num;
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};
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struct epm_psoc_set_avg {
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uint8_t cmd;
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uint8_t avg_period;
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uint8_t return_code;
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};
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struct epm_psoc_get_data {
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uint8_t cmd;
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uint8_t dev_num;
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uint8_t chan_num;
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uint32_t timestamp_resp_value;
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int16_t reading_raw;
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int32_t reading_value;
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};
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struct epm_psoc_get_buffered_data {
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uint8_t cmd;
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uint8_t dev_num;
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uint8_t status_mask;
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uint8_t chan_idx;
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uint32_t chan_mask;
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uint32_t timestamp_start;
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uint32_t timestamp_end;
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uint8_t buff_data[48];
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};
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struct epm_psoc_system_time_stamp {
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uint8_t cmd;
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uint32_t timestamp;
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};
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struct epm_psoc_set_channel {
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uint8_t cmd;
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uint8_t dev_num;
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uint32_t channel_mask;
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};
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struct result_buffer {
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uint32_t channel;
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uint32_t avg_buffer_sample;
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uint32_t result;
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};
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struct epm_psoc_get_avg_buffered_switch_data {
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uint8_t cmd;
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uint8_t status;
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uint32_t timestamp_start;
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uint32_t channel_mask;
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uint8_t avg_data[54];
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struct result_buffer data[54];
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};
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struct epm_psoc_set_channel_switch {
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uint8_t cmd;
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uint8_t dev;
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uint32_t delay;
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};
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struct epm_psoc_set_vadc {
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uint8_t cmd;
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uint8_t vadc_dev;
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uint32_t vadc_voltage;
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};
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struct epm_chan_properties {
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uint32_t resistorvalue;
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uint32_t gain;
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};
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#ifdef __KERNEL__
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struct epm_adc_platform_data {
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struct epm_chan_properties *channel;
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uint32_t num_channels;
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uint32_t num_adc;
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uint32_t chan_per_adc;
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uint32_t chan_per_mux;
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struct i2c_board_info epm_i2c_board_info;
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uint32_t bus_id;
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uint32_t gpio_expander_base_addr;
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};
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#endif
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#define EPM_ADC_IOCTL_CODE 0x91
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#define EPM_ADC_REQUEST _IOWR(EPM_ADC_IOCTL_CODE, 1, \
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struct epm_chan_request)
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#define EPM_ADC_INIT _IOR(EPM_ADC_IOCTL_CODE, 2, \
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uint32_t)
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#define EPM_ADC_DEINIT _IOR(EPM_ADC_IOCTL_CODE, 3, \
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uint32_t)
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#define EPM_PSOC_ADC_INIT _IOR(EPM_ADC_IOCTL_CODE, 4, \
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struct epm_psoc_init_resp)
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#define EPM_PSOC_ADC_CHANNEL_ENABLE _IOWR(EPM_ADC_IOCTL_CODE, 5, \
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struct epm_psoc_channel_configure)
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#define EPM_PSOC_ADC_CHANNEL_DISABLE _IOWR(EPM_ADC_IOCTL_CODE, 6, \
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struct epm_psoc_channel_configure)
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#define EPM_PSOC_ADC_SET_AVERAGING _IOWR(EPM_ADC_IOCTL_CODE, 7, \
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struct epm_psoc_set_avg)
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#define EPM_PSOC_ADC_GET_LAST_MEASUREMENT _IOWR(EPM_ADC_IOCTL_CODE, 8, \
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struct epm_psoc_get_data)
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#define EPM_PSOC_ADC_GET_BUFFERED_DATA _IOWR(EPM_ADC_IOCTL_CODE, 9, \
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struct epm_psoc_get_buffered_data)
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#define EPM_PSOC_ADC_GET_SYSTEM_TIMESTAMP _IOWR(EPM_ADC_IOCTL_CODE, 10, \
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struct epm_psoc_system_time_stamp)
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#define EPM_PSOC_ADC_SET_SYSTEM_TIMESTAMP _IOWR(EPM_ADC_IOCTL_CODE, 11, \
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struct epm_psoc_system_time_stamp)
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#define EPM_PSOC_ADC_GET_AVERAGE_DATA _IOWR(EPM_ADC_IOCTL_CODE, 12, \
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struct epm_psoc_get_avg_buffered_switch_data)
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#define EPM_PSOC_SET_CHANNEL_SWITCH _IOWR(EPM_ADC_IOCTL_CODE, 13, \
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struct epm_psoc_set_channel_switch)
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#define EPM_PSOC_CLEAR_BUFFER _IOWR(EPM_ADC_IOCTL_CODE, 14, \
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uint32_t)
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#define EPM_PSOC_ADC_SET_VADC_REFERENCE _IOWR(EPM_ADC_IOCTL_CODE, 15, \
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struct epm_psoc_set_vadc)
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#endif /* __EPM_ADC_H */
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