uhk/firmware
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Make the left keyboard half send the state of the keys to the right half via I2C and make the right half send the relevant scancodes to the host via USB.

Browse Source
This commit is contained in:
László Monda
2016-10-12 03:03:59 +02:00
parent cbe8c953a0
commit 80ddf397fd
6 changed files with 139 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

89
left/src/main.c
View File

@@ -1,8 +1,12 @@
#include "fsl_gpio.h"
#include "init_clock.h"
#include "fsl_port.h"
#include "fsl_i2c.h"
#include "key_matrix.h"
#include "test_led.h"
#include "i2c_addresses.h"
#include "i2c.h"
#include "init_peripherials.h"
#define KEYBOARD_MATRIX_COLS_NUM 7
#define KEYBOARD_MATRIX_ROWS_NUM 5
@@ -28,13 +32,51 @@ key_matrix_t keyMatrix = {
}
};
i2c_slave_config_t slaveConfig;
i2c_slave_handle_t slaveHandle;
volatile bool g_SlaveCompletionFlag = false;
static void i2c_slave_callback(I2C_Type *base, i2c_slave_transfer_t *xfer, void *userData)
{
switch (xfer->event)
{
case kI2C_SlaveTransmitEvent:
xfer->data = keyMatrix.keyStates;
xfer->dataSize = KEYBOARD_MATRIX_COLS_NUM*KEYBOARD_MATRIX_ROWS_NUM;
break;
case kI2C_SlaveReceiveEvent:
break;
case kI2C_SlaveCompletionEvent:
g_SlaveCompletionFlag = true;
break;
case kI2C_SlaveTransmitAckEvent:
break;
default:
g_SlaveCompletionFlag = true;
break;
}
}
int main(void)
{
InitTestLed();
InitClock();
InitPeripherials();
I2C_SlaveGetDefaultConfig(&slaveConfig);
slaveConfig.slaveAddress = I2C_ADDRESS_LEFT_KEYBOARD_HALF;
slaveConfig.addressingMode = kI2C_Address7bit/kI2C_RangeMatch;
I2C_SlaveInit(I2C_BUS_BASEADDR, &slaveConfig);
I2C_SlaveTransferCreateHandle(I2C_BUS_BASEADDR, &slaveHandle, i2c_slave_callback, NULL);
I2C_SlaveTransferNonBlocking(I2C_BUS_BASEADDR, &slaveHandle, kI2C_SlaveCompletionEvent);
// while (!g_SlaveCompletionFlag) {}
// g_SlaveCompletionFlag = false;
TEST_LED_OFF();
KeyMatrix_Init(&keyMatrix);
KeyMatrix_Scan(&keyMatrix);
while (1) {
KeyMatrix_Scan(&keyMatrix);
}
while (1)
{
@@ -48,48 +90,6 @@ int main(void)
}
/*
#define I2C_DATA_LENGTH 2
#include "board.h"
#include "fsl_clock_manager.h"
#include "fsl_i2c_slave_driver.h"
#include "fsl_i2c_shared_function.h"
#include "i2c_addresses.h"
#include "main.h"
uint8_t isSw2Pressed;
uint8_t isSw3Pressed;
uint8_t buffer[I2C_DATA_LENGTH];
void I2C0_IRQHandler(void)
{
I2C_DRV_IRQHandler(I2C0_IDX);
}
static void i2c_slave_callback(uint8_t instance, i2c_slave_event_t i2cEvent, void *param)
{
i2c_slave_state_t *slaveState = I2C_DRV_SlaveGetHandler(instance);
switch (i2cEvent) {
case kI2CSlaveTxReq:
slaveState->txSize = I2C_DATA_LENGTH;
slaveState ->txBuff = buffer;
slaveState ->isTxBusy = true;
buffer[0] = isSw2Pressed;
buffer[1] = isSw3Pressed;
break;
case kI2CSlaveTxEmpty:
slaveState->isTxBusy = false;
break;
default:
break;
}
}
int main(void)
{
// Initialize GPIO.
gpio_input_pin_user_config_t inputPin[] =
@@ -157,5 +157,4 @@ int main(void)
GPIO_DRV_WritePinOutput(kGpioLED1, isSw2Pressed);
GPIO_DRV_WritePinOutput(kGpioLED3, isSw3Pressed);
}
}
*/