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Cleanup and re-write uart code

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This commit is contained in:
hexkyz
2019-07-21 19:18:15 +01:00
parent f9c1d5fc1b
commit 7cee36544c
23 changed files with 971 additions and 242 deletions
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38
exosphere/src/uart.h
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@@ -31,7 +31,7 @@ static inline uintptr_t get_uart_base(void) {
#define BAUD_115200 115200
/* Exosphère: add the clkreset values for UART C,D,E */
/* UART devices */
typedef enum {
UART_A = 0,
UART_B = 1,
@@ -148,31 +148,31 @@ typedef enum {
} UartInterruptIdentification;
typedef struct {
/* 0x00 */ uint32_t UART_THR_DLAB;
/* 0x04 */ uint32_t UART_IER_DLAB;
/* 0x08 */ uint32_t UART_IIR_FCR;
/* 0x0C */ uint32_t UART_LCR;
/* 0x10 */ uint32_t UART_MCR;
/* 0x14 */ uint32_t UART_LSR;
/* 0x18 */ uint32_t UART_MSR;
/* 0x1C */ uint32_t UART_SPR;
/* 0x20 */ uint32_t UART_IRDA_CSR;
/* 0x24 */ uint32_t UART_RX_FIFO_CFG;
/* 0x28 */ uint32_t UART_MIE;
/* 0x2C */ uint32_t UART_VENDOR_STATUS;
/* 0x30 */ uint8_t _pad_30[0x0C];
/* 0x3C */ uint32_t UART_ASR;
} uart_t;
uint32_t UART_THR_DLAB;
uint32_t UART_IER_DLAB;
uint32_t UART_IIR_FCR;
uint32_t UART_LCR;
uint32_t UART_MCR;
uint32_t UART_LSR;
uint32_t UART_MSR;
uint32_t UART_SPR;
uint32_t UART_IRDA_CSR;
uint32_t UART_RX_FIFO_CFG;
uint32_t UART_MIE;
uint32_t UART_VENDOR_STATUS;
uint8_t _0x30[0x0C];
uint32_t UART_ASR;
} tegra_uart_t;
void uart_select(UartDevice dev);
void uart_config(UartDevice dev);
void uart_init(UartDevice dev, uint32_t baud);
void uart_wait_idle(UartDevice dev, UartVendorStatus status);
void uart_send(UartDevice dev, const void *buf, size_t len);
void uart_recv(UartDevice dev, void *buf, size_t len);
static inline volatile uart_t *get_uart_device(UartDevice dev) {
static inline volatile tegra_uart_t *uart_get_regs(UartDevice dev) {
static const size_t offsets[] = {0, 0x40, 0x200, 0x300, 0x400};
return (volatile uart_t *)(UART_BASE + offsets[dev]);
return (volatile tegra_uart_t *)(UART_BASE + offsets[dev]);
}
#endif