mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2025-06-06 09:31:16 -04:00
Code Issues Projects Releases Packages Wiki Activity

adding UartVendorStatus, UartLineStatus and UartLineControl

Browse source 
refactor defines
edited uart_wait_idle() second parameter type to UartVendorStatus
This commit is contained in:
Resaec 2018-04-27 23:57:20 +02:00
parent b34b9ba0e4
commit ae69126509
2 changed files with 56 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

14
exosphere/src/uart.c
View file

@ -17,7 +17,7 @@ void uart_init(UartDevice dev, uint32_t baud) {
/* Set baud rate. */
uint32_t rate = (8 * baud + 408000000) / (16 * baud);
uart->UART_LCR = 0x80; /* Enable DLAB. */
uart->UART_LCR = UART_LCR_DLAB; /* Enable DLAB. */
uart->UART_THR_DLAB = (uint8_t)rate; /* Divisor latch LSB. */
uart->UART_IER_DLAB = (uint8_t)(rate >> 8); /* Divisor latch MSB. */
uart->UART_LCR = 0; /* Diable DLAB. */
@ -27,17 +27,17 @@ void uart_init(UartDevice dev, uint32_t baud) {
uart->UART_IIR_FCR = 7; /* Enable and clear TX and RX FIFOs. */
uart->UART_LSR;
wait(3 * ((baud + 999999) / baud));
uart->UART_LCR = 3; /* Set word length 8. */
uart->UART_LCR = UART_LCR_WD_LENGTH_8; /* Set word length 8. */
uart->UART_MCR = 0;
uart->UART_MSR = 0;
uart->UART_IRDA_CSR = 0;
uart->UART_RX_FIFO_CFG = 1;
uart->UART_RX_FIFO_CFG = 1; /* Set RX_FIFO trigger level */
uart->UART_MIE = 0;
uart->UART_ASR = 0;
}
void uart_wait_idle(UartDevice dev, uint32_t which) {
while (!(get_uart_device(dev)->UART_VENDOR_STATUS & which)) {
void uart_wait_idle(UartDevice dev, UartVendorStatus status) {
while (!(get_uart_device(dev)->UART_VENDOR_STATUS & status)) {
/* Wait */
}
}
@ -47,7 +47,7 @@ void uart_send(UartDevice dev, const void *buf, size_t len)
volatile uart_t *uart = get_uart_device(dev);
for (size_t i = 0; i < len; i++) {
while (uart->UART_LSR & UART_TX_FIFO_FULL) {
while (uart->UART_LSR & UART_LSR_TX_FIFO_FULL) {
/* Wait until the TX FIFO isn't full */
}
uart->UART_THR_DLAB = *((const uint8_t *)buf + i);
@ -58,7 +58,7 @@ void uart_recv(UartDevice dev, void *buf, size_t len) {
volatile uart_t *uart = get_uart_device(dev);
for (size_t i = 0; i < len; i++) {
while (uart->UART_LSR & UART_RX_FIFO_EMPTY) {
while (uart->UART_LSR & UART_LSR_RX_FIFO_EMPTY) {
/* Wait until the RX FIFO isn't empty */
}
*((uint8_t *)buf + i) = uart->UART_THR_DLAB;