394ae0fea6
Export the epm header files for clients from userspace to send commands to the driver. Change-Id: I9b413f461da58cbf92aefeca9285ac6798468ea2 Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
45 lines
1003 B
C
45 lines
1003 B
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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#ifdef __KERNEL__
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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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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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#endif /* __EPM_ADC_H */
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