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Implement the write LED driver protocol command.

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This commit is contained in:
László Monda
2016-09-27 02:03:43 +02:00
parent 7855fa3f87
commit b519cd412d
3 changed files with 20 additions and 3 deletions
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16
right/src/usb_protocol_handler.c
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@@ -1,6 +1,8 @@
#include "usb_protocol_handler.h" #include "usb_protocol_handler.h"
#include "system_properties.h" #include "system_properties.h"
#include "test_led.h" #include "test_led.h"
#include "i2c_addresses.h"
#include "led_driver.h"
void SetError(uint8_t error); void SetError(uint8_t error);
void SetGenericError(); void SetGenericError();
@@ -96,6 +98,20 @@ void GetSetTestLed()
void WriteLedDriver() void WriteLedDriver()
{ {
uint8_t i2cAddress = GenericHidInBuffer[1];
uint8_t i2cPayloadSize = GenericHidInBuffer[2];
if (!IS_I2C_LED_DRIVER_ADDRESS(i2cAddress)) {
SetError(WRITE_LED_DRIVER_RESPONSE_INVALID_ADDRESS);
return;
}
if (i2cPayloadSize > USB_GENERIC_HID_OUT_BUFFER_LENGTH-3) {
SetError(WRITE_LED_DRIVER_RESPONSE_INVALID_PAYLOAD_SIZE);
return;
}
LedDriver_WriteBuffer(i2cAddress, GenericHidInBuffer+3, i2cPayloadSize);
} }
void ReadLedDriver() void ReadLedDriver()

2
right/src/usb_protocol_handler.h
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@@ -18,6 +18,8 @@
#define USB_COMMAND_JUMP_TO_BOOTLOADER 1 #define USB_COMMAND_JUMP_TO_BOOTLOADER 1
#define USB_COMMAND_TEST_LED 2 #define USB_COMMAND_TEST_LED 2
#define USB_COMMAND_WRITE_LED_DRIVER 3 #define USB_COMMAND_WRITE_LED_DRIVER 3
#define WRITE_LED_DRIVER_RESPONSE_INVALID_ADDRESS 1
#define WRITE_LED_DRIVER_RESPONSE_INVALID_PAYLOAD_SIZE 2
#define USB_COMMAND_READ_LED_DRIVER 4 #define USB_COMMAND_READ_LED_DRIVER 4
// Functions: // Functions:

5
shared/i2c_addresses.h
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@@ -5,11 +5,10 @@
#define I2C_ADDRESS_LEFT_KEYBOARD_HALF 8 #define I2C_ADDRESS_LEFT_KEYBOARD_HALF 8
// IS31FL3731 LED drivers range from 0x74 to 0x77
#define I2C_ADDRESS_LED_DRIVER_LEFT 0b1110100 #define I2C_ADDRESS_LED_DRIVER_LEFT 0b1110100
#define I2C_ADDRESS_LED_DRIVER_RIGHT 0b1110111 #define I2C_ADDRESS_LED_DRIVER_RIGHT 0b1110111
#define IS_I2C_LED_DRIVER_ADDRESS (address) \ #define IS_I2C_LED_DRIVER_ADDRESS(address) \
(I2C_ADDRESS_LED_DRIVER_LEFT <= address && address <= I2C_ADDRESS_LED_DRIVER_RIGHT) (I2C_ADDRESS_LED_DRIVER_LEFT <= (address) && (address) <= I2C_ADDRESS_LED_DRIVER_RIGHT)
#endif #endif