tmk_core/protocol/arm_atsam/i2c_master.h

   1 /*
   2 Copyright 2018 Massdrop Inc.
   3
   4 This program is free software: you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation, either version 2 of the License, or
   7 (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #ifndef _I2C_MASTER_H_
  19 #define _I2C_MASTER_H_
  20
  21 #ifndef MD_BOOTLOADER
  22
  23 #include "samd51j18a.h"
  24 #include "issi3733_driver.h"
  25 #include "config.h"
  26
  27 __attribute__((__aligned__(16)))
  28 DmacDescriptor dmac_desc;
  29 __attribute__((__aligned__(16)))
  30 DmacDescriptor dmac_desc_wb;
  31
  32 uint8_t I2C3733_Init_Control(void);
  33 uint8_t I2C3733_Init_Drivers(void);
  34 void I2C3733_Control_Set(uint8_t state);
  35 void I2C_DMAC_LED_Init(void);
  36
  37 #define I2C_Q_SIZE              100
  38
  39 #define I2C_Q_NA                100
  40 #define I2C_Q_CRWL              101
  41 #define I2C_Q_PAGE_SELECT       102
  42 #define I2C_Q_PWM               103
  43 #define I2C_Q_GCR               104
  44 #define I2C_Q_ONOFF             105
  45
  46 #define I2C_DMA_MAX_SEND        255
  47
  48 extern volatile uint8_t i2c_led_q_running;
  49
  50 #define I2C_LED_Q_PWM(a)    { \
  51                                 if (i2c_led_q_request_room(7)) \
  52                                 { \
  53                                     i2c_led_q_add(I2C_Q_CRWL); \
  54                                     i2c_led_q_add(a); \
  55                                     i2c_led_q_add(I2C_Q_PAGE_SELECT); \
  56                                     i2c_led_q_add(a); \
  57                                     i2c_led_q_add(ISSI3733_PG_PWM); \
  58                                     i2c_led_q_add(I2C_Q_PWM); \
  59                                     i2c_led_q_add(a); \
  60                                 } \
  61                             }
  62
  63 #define I2C_LED_Q_GCR(a)    { \
  64                                 if (i2c_led_q_request_room(7)) \
  65                                 { \
  66                                     i2c_led_q_add(I2C_Q_CRWL); \
  67                                     i2c_led_q_add(a); \
  68                                     i2c_led_q_add(I2C_Q_PAGE_SELECT); \
  69                                     i2c_led_q_add(a); \
  70                                     i2c_led_q_add(ISSI3733_PG_FN); \
  71                                     i2c_led_q_add(I2C_Q_GCR); \
  72                                     i2c_led_q_add(a); \
  73                                 } \
  74                             }
  75
  76 #define I2C_LED_Q_ONOFF(a)  { \
  77                                 if (i2c_led_q_request_room(7)) \
  78                                 { \
  79                                     i2c_led_q_add(I2C_Q_CRWL); \
  80                                     i2c_led_q_add(a); \
  81                                     i2c_led_q_add(I2C_Q_PAGE_SELECT); \
  82                                     i2c_led_q_add(a); \
  83                                     i2c_led_q_add(ISSI3733_PG_ONOFF); \
  84                                     i2c_led_q_add(I2C_Q_ONOFF); \
  85                                     i2c_led_q_add(a); \
  86                                 } \
  87                             }
  88
  89
  90 void i2c_led_q_init(void);
  91 void i2c_led_q_add(uint8_t cmd);
  92 void i2c_led_q_s_advance(void);
  93 uint8_t i2c_led_q_size(void);
  94 uint8_t i2c_led_q_request_room(uint8_t request_size);
  95 uint8_t i2c_led_q_run(void);
  96
  97 void i2c1_init(void);
  98 uint8_t i2c1_transmit(uint8_t address, uint8_t *data, uint16_t length, uint16_t timeout);
  99 void i2c1_stop(void);
 100
 101 #endif //MD_BOOTLOADER
 102
 103 void i2c0_init(void);
 104 uint8_t i2c0_transmit(uint8_t address, uint8_t *data, uint16_t length, uint16_t timeout);
 105 void i2c0_stop(void);
 106
 107 #endif // _I2C_MASTER_H_
 108