Rgb matrix arm (#3648)

* Addition of I2C master driver for STM32, Generalization of ISSI3731 driver

- Addition of an i2c_master driver for STM32 to replicate expectations of AVR driver.
- Moved ISSI3731 driver one level up to make it accesible by both architectures.
- Renamed ISSI3731 functions to a more general name for preparation of other ISSI drivers.
- Added compiler directives where necessary to differenciate each architecture.

* converted tabs to spaces

1 files changed, 214 insertions, 0 deletions

diff --git a/drivers/is31fl3731.h b/drivers/is31fl3731.h
new file mode 100644
index 0000000000..9e195c240e
--- /dev/null
+++ b/drivers/is31fl3731.h
@@ -0,0 +1,214 @@
+/* Copyright 2017 Jason Williams
+ * Copyright 2018 Jack Humbert
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef IS31FL3731_DRIVER_H
+#define IS31FL3731_DRIVER_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef struct is31_led {
+  uint8_t driver:2;
+  uint8_t r;
+  uint8_t g;
+  uint8_t b;
+} __attribute__((packed)) is31_led;
+
+extern const is31_led g_is31_leds[DRIVER_LED_TOTAL];
+
+void IS31_init( uint8_t addr );
+void IS31_write_register( uint8_t addr, uint8_t reg, uint8_t data );
+void IS31_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer );
+
+void IS31_set_color( int index, uint8_t red, uint8_t green, uint8_t blue );
+void IS31_set_color_all( uint8_t red, uint8_t green, uint8_t blue );
+
+void IS31_set_led_control_register( uint8_t index, bool red, bool green, bool blue );
+
+// This should not be called from an interrupt
+// (eg. from a timer interrupt).
+// Call this while idle (in between matrix scans).
+// If the buffer is dirty, it will update the driver with the buffer.
+void IS31_update_pwm_buffers( uint8_t addr1, uint8_t addr2 );
+void IS31_update_led_control_registers( uint8_t addr1, uint8_t addr2 );
+
+#define C1_1  0x24
+#define C1_2  0x25
+#define C1_3  0x26
+#define C1_4  0x27
+#define C1_5  0x28
+#define C1_6  0x29
+#define C1_7  0x2A
+#define C1_8  0x2B
+
+#define C1_9  0x2C
+#define C1_10 0x2D
+#define C1_11 0x2E
+#define C1_12 0x2F
+#define C1_13 0x30
+#define C1_14 0x31
+#define C1_15 0x32
+#define C1_16 0x33
+
+#define C2_1  0x34
+#define C2_2  0x35
+#define C2_3  0x36
+#define C2_4  0x37
+#define C2_5  0x38
+#define C2_6  0x39
+#define C2_7  0x3A
+#define C2_8  0x3B
+
+#define C2_9  0x3C
+#define C2_10 0x3D
+#define C2_11 0x3E
+#define C2_12 0x3F
+#define C2_13 0x40
+#define C2_14 0x41
+#define C2_15 0x42
+#define C2_16 0x43
+
+#define C3_1  0x44
+#define C3_2  0x45
+#define C3_3  0x46
+#define C3_4  0x47
+#define C3_5  0x48
+#define C3_6  0x49
+#define C3_7  0x4A
+#define C3_8  0x4B
+
+#define C3_9  0x4C
+#define C3_10 0x4D
+#define C3_11 0x4E
+#define C3_12 0x4F
+#define C3_13 0x50
+#define C3_14 0x51
+#define C3_15 0x52
+#define C3_16 0x53
+
+#define C4_1  0x54
+#define C4_2  0x55
+#define C4_3  0x56
+#define C4_4  0x57
+#define C4_5  0x58
+#define C4_6  0x59
+#define C4_7  0x5A
+#define C4_8  0x5B
+
+#define C4_9  0x5C
+#define C4_10 0x5D
+#define C4_11 0x5E
+#define C4_12 0x5F
+#define C4_13 0x60
+#define C4_14 0x61
+#define C4_15 0x62
+#define C4_16 0x63
+
+#define C5_1  0x64
+#define C5_2  0x65
+#define C5_3  0x66
+#define C5_4  0x67
+#define C5_5  0x68
+#define C5_6  0x69
+#define C5_7  0x6A
+#define C5_8  0x6B
+
+#define C5_9  0x6C
+#define C5_10 0x6D
+#define C5_11 0x6E
+#define C5_12 0x6F
+#define C5_13 0x70
+#define C5_14 0x71
+#define C5_15 0x72
+#define C5_16 0x73
+
+#define C6_1  0x74
+#define C6_2  0x75
+#define C6_3  0x76
+#define C6_4  0x77
+#define C6_5  0x78
+#define C6_6  0x79
+#define C6_7  0x7A
+#define C6_8  0x7B
+
+#define C6_9  0x7C
+#define C6_10 0x7D
+#define C6_11 0x7E
+#define C6_12 0x7F
+#define C6_13 0x80
+#define C6_14 0x81
+#define C6_15 0x82
+#define C6_16 0x83
+
+#define C7_1  0x84
+#define C7_2  0x85
+#define C7_3  0x86
+#define C7_4  0x87
+#define C7_5  0x88
+#define C7_6  0x89
+#define C7_7  0x8A
+#define C7_8  0x8B
+
+#define C7_9  0x8C
+#define C7_10 0x8D
+#define C7_11 0x8E
+#define C7_12 0x8F
+#define C7_13 0x90
+#define C7_14 0x91
+#define C7_15 0x92
+#define C7_16 0x93
+
+#define C8_1  0x94
+#define C8_2  0x95
+#define C8_3  0x96
+#define C8_4  0x97
+#define C8_5  0x98
+#define C8_6  0x99
+#define C8_7  0x9A
+#define C8_8  0x9B
+
+#define C8_9  0x9C
+#define C8_10 0x9D
+#define C8_11 0x9E
+#define C8_12 0x9F
+#define C8_13 0xA0
+#define C8_14 0xA1
+#define C8_15 0xA2
+#define C8_16 0xA3
+
+#define C9_1  0xA4
+#define C9_2  0xA5
+#define C9_3  0xA6
+#define C9_4  0xA7
+#define C9_5  0xA8
+#define C9_6  0xA9
+#define C9_7  0xAA
+#define C9_8  0xAB
+
+#define C9_9  0xAC
+#define C9_10 0xAD
+#define C9_11 0xAE
+#define C9_12 0xAF
+#define C9_13 0xB0
+#define C9_14 0xB1
+#define C9_15 0xB2
+#define C9_16 0xB3
+
+
+
+#endif // IS31FL3731_DRIVER_H