Bell Huang / pixart_pah8011

class pah8011 for mbed

pah8011/pah_comm_i2c.c@0:242cf8f28bf2, 2017-10-26 (annotated)

Committer:
bell_huang
Date:
Thu Oct 26 02:49:44 2017 +0000
Revision:
0:242cf8f28bf2
Init version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bell_huang 0:242cf8f28bf2 1 /*==============================================================================
bell_huang 0:242cf8f28bf2 2 * Edit History
bell_huang 0:242cf8f28bf2 3 *
bell_huang 0:242cf8f28bf2 4 * This section contains comments describing changes made to the module. Notice
bell_huang 0:242cf8f28bf2 5 * that changes are listed in reverse chronological order. Please use ISO format
bell_huang 0:242cf8f28bf2 6 * for dates.
bell_huang 0:242cf8f28bf2 7 *
bell_huang 0:242cf8f28bf2 8 * when who what, where, why
bell_huang 0:242cf8f28bf2 9 * ---------- --- -----------------------------------------------------------
bell_huang 0:242cf8f28bf2 10 * 2016-10-18 bh - Add pah_comm_get_bus_type() function.
bell_huang 0:242cf8f28bf2 11 * 2016-04-12 bh - Add license information and revision information
bell_huang 0:242cf8f28bf2 12 * 2016-04-07 bh - Initial revision.
bell_huang 0:242cf8f28bf2 13 ==============================================================================*/
bell_huang 0:242cf8f28bf2 14
bell_huang 0:242cf8f28bf2 15 #include "pah_comm.h"
bell_huang 0:242cf8f28bf2 16
bell_huang 0:242cf8f28bf2 17 // platform support
bell_huang 0:242cf8f28bf2 18 #include "pah_platform_functions.h"
bell_huang 0:242cf8f28bf2 19
bell_huang 0:242cf8f28bf2 20
bell_huang 0:242cf8f28bf2 21 /*============================================================================
bell_huang 0:242cf8f28bf2 22 STATIC VARIABLE DEFINITIONS
bell_huang 0:242cf8f28bf2 23 ============================================================================*/
bell_huang 0:242cf8f28bf2 24
bell_huang 0:242cf8f28bf2 25 // valid bank range: 0x00 ~ 0x03
bell_huang 0:242cf8f28bf2 26 static uint8_t _curr_bank = 0xFF;
bell_huang 0:242cf8f28bf2 27
bell_huang 0:242cf8f28bf2 28
bell_huang 0:242cf8f28bf2 29 /*============================================================================
bell_huang 0:242cf8f28bf2 30 PUBLIC FUNCTION DEFINITIONS
bell_huang 0:242cf8f28bf2 31 ============================================================================*/
bell_huang 0:242cf8f28bf2 32 bool pah_comm_write(uint8_t addr, uint8_t data)
bell_huang 0:242cf8f28bf2 33 {
bell_huang 0:242cf8f28bf2 34 if (addr == 0x7F)
bell_huang 0:242cf8f28bf2 35 {
bell_huang 0:242cf8f28bf2 36 if (_curr_bank == data)
bell_huang 0:242cf8f28bf2 37 return true;
bell_huang 0:242cf8f28bf2 38
bell_huang 0:242cf8f28bf2 39 if (!i2c_write_reg(0x7F, data))
bell_huang 0:242cf8f28bf2 40 return false;
bell_huang 0:242cf8f28bf2 41
bell_huang 0:242cf8f28bf2 42 _curr_bank = data;
bell_huang 0:242cf8f28bf2 43 return true;
bell_huang 0:242cf8f28bf2 44 }
bell_huang 0:242cf8f28bf2 45
bell_huang 0:242cf8f28bf2 46 return i2c_write_reg(addr, data);
bell_huang 0:242cf8f28bf2 47 }
bell_huang 0:242cf8f28bf2 48
bell_huang 0:242cf8f28bf2 49 bool pah_comm_read(uint8_t addr, uint8_t *data)
bell_huang 0:242cf8f28bf2 50 {
bell_huang 0:242cf8f28bf2 51 return i2c_read_reg(addr, data);
bell_huang 0:242cf8f28bf2 52 }
bell_huang 0:242cf8f28bf2 53
bell_huang 0:242cf8f28bf2 54 bool pah_comm_burst_read(uint8_t addr, uint8_t *data, uint16_t num)
bell_huang 0:242cf8f28bf2 55 {
bell_huang 0:242cf8f28bf2 56 return i2c_burst_read_reg(addr, data, num);
bell_huang 0:242cf8f28bf2 57 }
bell_huang 0:242cf8f28bf2 58
bell_huang 0:242cf8f28bf2 59 pah_comm_bus_e pah_comm_get_bus_type(void)
bell_huang 0:242cf8f28bf2 60 {
bell_huang 0:242cf8f28bf2 61 return pah_comm_bus_i2c;
bell_huang 0:242cf8f28bf2 62 }