Bell Huang / pixart_pah8011

class pah8011 for mbed

pixart_pah8011.cpp@4:cbc49829af39, 2017-10-27 (annotated)

Committer:
bell_huang
Date:
Fri Oct 27 06:05:38 2017 +0000
Revision:
4:cbc49829af39
Parent:
0:242cf8f28bf2
Child:
5:37451de228e4
QQQ

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bell_huang 0:242cf8f28bf2 1 #include "pixart_pah8011.h"
bell_huang 0:242cf8f28bf2 2
bell_huang 0:242cf8f28bf2 3 extern "C" {
bell_huang 0:242cf8f28bf2 4
bell_huang 0:242cf8f28bf2 5 #include "pah_driver.h"
bell_huang 0:242cf8f28bf2 6
bell_huang 0:242cf8f28bf2 7 typedef void (*debug_printf_handle)(const char *fmt, ...);
bell_huang 0:242cf8f28bf2 8
bell_huang 0:242cf8f28bf2 9 static Serial *g_serial = NULL;
bell_huang 0:242cf8f28bf2 10 static I2C *g_i2c = NULL;
bell_huang 0:242cf8f28bf2 11 static uint8_t g_slave_id = 0x15;
bell_huang 0:242cf8f28bf2 12
bell_huang 0:242cf8f28bf2 13 void debug_printf(const char *fmt, ...)
bell_huang 0:242cf8f28bf2 14 {
bell_huang 0:242cf8f28bf2 15 if (!g_serial)
bell_huang 0:242cf8f28bf2 16 return;
bell_huang 0:242cf8f28bf2 17
bell_huang 0:242cf8f28bf2 18 char msg[128];
bell_huang 0:242cf8f28bf2 19 va_list marker;
bell_huang 0:242cf8f28bf2 20 va_start(marker, fmt);
bell_huang 0:242cf8f28bf2 21 vsprintf(msg, fmt, marker);
bell_huang 0:242cf8f28bf2 22 va_end(marker);
bell_huang 0:242cf8f28bf2 23 g_serial->printf(msg);
bell_huang 0:242cf8f28bf2 24 }
bell_huang 0:242cf8f28bf2 25
bell_huang 0:242cf8f28bf2 26 bool i2c_write_reg(uint8_t addr, uint8_t data)
bell_huang 0:242cf8f28bf2 27 {
bell_huang 0:242cf8f28bf2 28 char data_write[2];
bell_huang 0:242cf8f28bf2 29
bell_huang 0:242cf8f28bf2 30 data_write[0] = addr;
bell_huang 0:242cf8f28bf2 31 data_write[1] = data;
bell_huang 0:242cf8f28bf2 32
bell_huang 0:242cf8f28bf2 33 return 0 == g_i2c->write((g_slave_id << 1), data_write, 2, 0);
bell_huang 0:242cf8f28bf2 34 }
bell_huang 0:242cf8f28bf2 35
bell_huang 0:242cf8f28bf2 36 bool i2c_burst_read_reg(uint8_t addr, uint8_t *data, uint32_t rx_size)
bell_huang 0:242cf8f28bf2 37 {
bell_huang 0:242cf8f28bf2 38 if (0 != g_i2c->write((g_slave_id << 1), (const char*)&addr, 1, 1))
bell_huang 0:242cf8f28bf2 39 return false;
bell_huang 0:242cf8f28bf2 40
bell_huang 0:242cf8f28bf2 41 if (0 != g_i2c->read((g_slave_id << 1), (char*)data, rx_size, 0))
bell_huang 0:242cf8f28bf2 42 return false;
bell_huang 0:242cf8f28bf2 43
bell_huang 0:242cf8f28bf2 44 return true;
bell_huang 0:242cf8f28bf2 45 }
bell_huang 0:242cf8f28bf2 46
bell_huang 0:242cf8f28bf2 47 bool i2c_read_reg(uint8_t addr, uint8_t *data)
bell_huang 0:242cf8f28bf2 48 {
bell_huang 0:242cf8f28bf2 49 return i2c_burst_read_reg(addr, data, 1);
bell_huang 0:242cf8f28bf2 50 }
bell_huang 0:242cf8f28bf2 51
bell_huang 0:242cf8f28bf2 52 void delay_ms(uint64_t ms)
bell_huang 0:242cf8f28bf2 53 {
bell_huang 0:242cf8f28bf2 54 wait_ms(ms);
bell_huang 0:242cf8f28bf2 55 }
bell_huang 0:242cf8f28bf2 56
bell_huang 0:242cf8f28bf2 57 } // extern "C"
bell_huang 0:242cf8f28bf2 58
bell_huang 0:242cf8f28bf2 59
bell_huang 0:242cf8f28bf2 60 namespace pixart {
bell_huang 0:242cf8f28bf2 61
bell_huang 0:242cf8f28bf2 62
bell_huang 0:242cf8f28bf2 63 pah8011::pah8011()
bell_huang 0:242cf8f28bf2 64 : m_is_ppg_enabled(false)
bell_huang 0:242cf8f28bf2 65 , m_is_touch_enabled(false)
bell_huang 0:242cf8f28bf2 66 {
bell_huang 0:242cf8f28bf2 67 }
bell_huang 0:242cf8f28bf2 68
bell_huang 0:242cf8f28bf2 69 pah8011::~pah8011()
bell_huang 0:242cf8f28bf2 70 {
bell_huang 0:242cf8f28bf2 71 pah_deinit();
bell_huang 0:242cf8f28bf2 72 }
bell_huang 0:242cf8f28bf2 73
bell_huang 0:242cf8f28bf2 74 bool pah8011::init(I2C &i2c, Serial *serial, uint8_t slave_id)
bell_huang 0:242cf8f28bf2 75 {
bell_huang 0:242cf8f28bf2 76 g_i2c = &i2c;
bell_huang 0:242cf8f28bf2 77 g_serial = serial;
bell_huang 0:242cf8f28bf2 78
bell_huang 0:242cf8f28bf2 79 pah_flags_s flags;
bell_huang 0:242cf8f28bf2 80 memset(&flags, 0, sizeof(flags));
bell_huang 0:242cf8f28bf2 81
bell_huang 0:242cf8f28bf2 82 flags.intshape_pulse_type = pah_intshape_pulse_type_level;
bell_huang 0:242cf8f28bf2 83
bell_huang 0:242cf8f28bf2 84 if (!pah_init_with_flags(&flags))
bell_huang 0:242cf8f28bf2 85 return false;
bell_huang 0:242cf8f28bf2 86
bell_huang 0:242cf8f28bf2 87 return true;
bell_huang 0:242cf8f28bf2 88 }
bell_huang 0:242cf8f28bf2 89
bell_huang 0:242cf8f28bf2 90 bool pah8011::enable_ppg()
bell_huang 0:242cf8f28bf2 91 {
bell_huang 0:242cf8f28bf2 92 m_is_ppg_enabled = true;
bell_huang 0:242cf8f28bf2 93
bell_huang 0:242cf8f28bf2 94 return select_mode();
bell_huang 0:242cf8f28bf2 95 }
bell_huang 0:242cf8f28bf2 96
bell_huang 0:242cf8f28bf2 97 bool pah8011::disable_ppg()
bell_huang 0:242cf8f28bf2 98 {
bell_huang 0:242cf8f28bf2 99 m_is_ppg_enabled = false;
bell_huang 0:242cf8f28bf2 100
bell_huang 0:242cf8f28bf2 101 return select_mode();
bell_huang 0:242cf8f28bf2 102 }
bell_huang 0:242cf8f28bf2 103
bell_huang 0:242cf8f28bf2 104 bool pah8011::enable_touch()
bell_huang 0:242cf8f28bf2 105 {
bell_huang 0:242cf8f28bf2 106 m_is_touch_enabled = true;
bell_huang 0:242cf8f28bf2 107
bell_huang 0:242cf8f28bf2 108 return select_mode();
bell_huang 0:242cf8f28bf2 109 }
bell_huang 0:242cf8f28bf2 110
bell_huang 0:242cf8f28bf2 111 bool pah8011::disable_touch()
bell_huang 0:242cf8f28bf2 112 {
bell_huang 0:242cf8f28bf2 113 m_is_touch_enabled = false;
bell_huang 0:242cf8f28bf2 114
bell_huang 0:242cf8f28bf2 115 return select_mode();
bell_huang 0:242cf8f28bf2 116 }
bell_huang 0:242cf8f28bf2 117
bell_huang 0:242cf8f28bf2 118 bool pah8011::task()
bell_huang 0:242cf8f28bf2 119 {
bell_huang 0:242cf8f28bf2 120 pah_ret ret = pah_task();
bell_huang 0:242cf8f28bf2 121
bell_huang 0:242cf8f28bf2 122 return ret == pah_success
bell_huang 0:242cf8f28bf2 123 || ret == pah_no_interrupt;
bell_huang 0:242cf8f28bf2 124 }
bell_huang 0:242cf8f28bf2 125
bell_huang 0:242cf8f28bf2 126 bool pah8011::get_result(task_result &result)
bell_huang 0:242cf8f28bf2 127 {
bell_huang 0:242cf8f28bf2 128 if (!pah_has_fifo_data())
bell_huang 0:242cf8f28bf2 129 return false;
bell_huang 0:242cf8f28bf2 130
bell_huang 4:cbc49829af39 131 result.data = (int32_t*)pah_get_fifo_data();
bell_huang 0:242cf8f28bf2 132 result.num_per_ch = pah_fifo_data_num_per_ch();
bell_huang 0:242cf8f28bf2 133 result.ch_num = pah_get_fifo_ch_num();
bell_huang 0:242cf8f28bf2 134 result.is_touched = pah_is_touched();
bell_huang 0:242cf8f28bf2 135
bell_huang 0:242cf8f28bf2 136 return true;
bell_huang 0:242cf8f28bf2 137 }
bell_huang 0:242cf8f28bf2 138
bell_huang 0:242cf8f28bf2 139 bool pah8011::select_mode()
bell_huang 0:242cf8f28bf2 140 {
bell_huang 0:242cf8f28bf2 141 pah_mode mode = pah_stop_mode;
bell_huang 0:242cf8f28bf2 142
bell_huang 0:242cf8f28bf2 143 if (m_is_ppg_enabled)
bell_huang 0:242cf8f28bf2 144 {
bell_huang 0:242cf8f28bf2 145 if (m_is_touch_enabled)
bell_huang 0:242cf8f28bf2 146 mode = pah_ppg_touch_mode;
bell_huang 0:242cf8f28bf2 147 else
bell_huang 0:242cf8f28bf2 148 mode = pah_ppg_mode;
bell_huang 0:242cf8f28bf2 149 }
bell_huang 0:242cf8f28bf2 150 else if (m_is_touch_enabled)
bell_huang 0:242cf8f28bf2 151 {
bell_huang 0:242cf8f28bf2 152 mode = pah_touch_mode;
bell_huang 0:242cf8f28bf2 153 }
bell_huang 0:242cf8f28bf2 154 else
bell_huang 0:242cf8f28bf2 155 {
bell_huang 0:242cf8f28bf2 156 mode = pah_stop_mode;
bell_huang 0:242cf8f28bf2 157 }
bell_huang 0:242cf8f28bf2 158
bell_huang 0:242cf8f28bf2 159 return pah_enter_mode(mode);
bell_huang 0:242cf8f28bf2 160 }
bell_huang 0:242cf8f28bf2 161
bell_huang 0:242cf8f28bf2 162 }
bell_huang 0:242cf8f28bf2 163