summaryrefslogtreecommitdiffstats
path: root/libgloss/or1k/or1k_uart.h
diff options
context:
space:
mode:
Diffstat (limited to 'libgloss/or1k/or1k_uart.h')
-rw-r--r--libgloss/or1k/or1k_uart.h70
1 files changed, 15 insertions, 55 deletions
diff --git a/libgloss/or1k/or1k_uart.h b/libgloss/or1k/or1k_uart.h
index dc8a3dbce..4cbb68350 100644
--- a/libgloss/or1k/or1k_uart.h
+++ b/libgloss/or1k/or1k_uart.h
@@ -15,69 +15,29 @@
* they apply.
*/
-/* This is the generic board support for the OpenCores UART device */
+/* This is the generic board support for the OpenCores UART device, internal
+ * header. */
#include <stdint.h>
#include "board.h"
+/**
+ * Registered callback function
+ */
extern void (*_or1k_uart_read_cb)(char c);
+/**
+ * The UART interrupt handler
+ */
void _or1k_uart_interrupt_handler(uint32_t data);
+/**
+ * Initialize UART
+ */
int _or1k_uart_init(void);
-void _or1k_uart_write(char c);
-
-#define RB _or1k_board_uart_base + 0
-#define THR _or1k_board_uart_base + 0
-#define IER _or1k_board_uart_base + 1
-#define IIR _or1k_board_uart_base + 2
-#define FCR _or1k_board_uart_base + 2
-#define LCR _or1k_board_uart_base + 3
-#define MCR _or1k_board_uart_base + 4
-#define LSR _or1k_board_uart_base + 5
-#define MSR _or1k_board_uart_base + 6
-
-#define DLB1 _or1k_board_uart_base + 0
-#define DLB2 _or1k_board_uart_base + 1
-
-#define IER_RDAI 0
-#define IER_TEI 1
-#define IER_RLSI 2
-#define IER_MSI 3
-#define IIR_RLS 0xC3
-#define IIR_RDA 0xC2
-#define IIR_TO 0xC6
-#define IIR_THRE 0xC1
-#define IIT_MS 0xC0
-
-#define FCR_CLRRECV 0x1
-#define FCR_CLRTMIT 0x2
-#define FCR_TRIG_1 0x0
-#define FCR_TRIG_4 0x40
-#define FCR_TRIG_8 0x80
-#define FCR_TRIG_14 0xC0
-
-#define LCR_BPC_MASK 0x3
-#define LCR_SB_MASK 0x4
-
-#define LCR_BPC_5 0x0
-#define LCR_BPC_6 0x1
-#define LCR_BPC_7 0x2
-#define LCR_BPC_8 0x3
-#define LCR_SB_1 0x0
-#define LCR_SB_2 0x4
-#define LCR_PE 0x8
-#define LCR_EPS 0x10
-#define LCR_SP 0x20
-#define LCR_BC 0x40
-#define LCR_DLA 0x80
-
-#define LSR_DR 0x0
-#define LSR_OE 0x2
-#define LSR_PE 0x4
-#define LSR_FE 0x8
-#define LSR_BI 0x10
-#define LSR_TFE 0x20
-#define LSR_TEI 0x40
+/**
+ * Write character to UART
+ */
+void _or1k_uart_write(char c);