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-rw-r--r--firmware/zpu/lib/hal_uart.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/firmware/zpu/lib/hal_uart.c b/firmware/zpu/lib/hal_uart.c
deleted file mode 100644
index af60bed6a..000000000
--- a/firmware/zpu/lib/hal_uart.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/* -*- c -*- */
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "memory_map.h"
-#include "hal_uart.h"
-#include "hal_io.h"
-#include "mdelay.h"
-
-//just to save you from going insane, note that firmware/FPGA UARTs [0-2] correspond to serial ports [1-3].
-//so in software, we refer to UART_DEBUG as UART0, but it transmits on pin TXD<1>. see the UART assignments in hal_uart.h.
-
-#define NSPEEDS 6
-#define MAX_WB_DIV 4
-
-//if you're going to recalculate the divisors, it's just uart_clock_rate / baud_rate.
-//uart_clock_rate is 50MHz for USRP2.
-static const uint16_t
-divisor_table[NSPEEDS] = {
- 5208, // 9600
- 2604, // 19200
- 1302, // 38400
- 868, // 57600
- 434, // 115200
- 217 // 230400
-};
-
-static char uart_mode[4] = {
- [UART_DEBUG] = UART_MODE_ONLCR,
- [UART_EXP] = UART_MODE_ONLCR,
- [UART_GPS] = UART_MODE_ONLCR
-};
-
-static char uart_speeds[4] = {
- [UART_DEBUG] = US_230400,
- [UART_EXP] = US_230400,
- [UART_GPS] = US_115200
-};
-
-void
-hal_uart_set_mode(hal_uart_name_t uart, int mode)
-{
- uart_mode[uart] = mode;
-}
-
-void hal_uart_set_speed(hal_uart_name_t uart, hal_uart_speed_t speed)
-{
- uart_regs[uart].clkdiv = divisor_table[speed];
-}
-
-void
-hal_uart_init(void)
-{
- for(int i = 0; i < 3; i++) {
- hal_uart_set_mode(i, uart_mode[i]);
- hal_uart_set_speed(i, uart_speeds[i]);
- }
-}
-
-void
-hal_uart_putc(hal_uart_name_t u, int ch)
-{
- if ((ch == '\n') && (uart_mode[u] == UART_MODE_ONLCR)) //map \n->\r\n if necessary
- hal_uart_putc(u, '\r');
-
- while (uart_regs[u].txlevel == 0) // wait for fifo to have space
- ;
-
- uart_regs[u].txchar = ch;
-}
-
-void
-hal_uart_putc_nowait(hal_uart_name_t u, int ch)
-{
- if ((ch == '\n') && (uart_mode[u] == UART_MODE_ONLCR)) //map \n->\r\n if necessary
- hal_uart_putc(u, '\r');
-
- if(uart_regs[u].txlevel) // If fifo has space
- uart_regs[u].txchar = ch;
-}
-
-int
-hal_uart_getc(hal_uart_name_t u)
-{
- while ((uart_regs[u].rxlevel) == 0) // wait for data to be ready
- ;
-
- return uart_regs[u].rxchar;
-}
-
-int
-hal_uart_getc_noblock(hal_uart_name_t u)
-{
-// int timeout = 0;
-// while (((uart_regs[u].rxlevel) == 0) && (timeout++ < HAL_UART_TIMEOUT_MS))
-// mdelay(1);
- if(uart_regs[u].rxlevel == 0) return -1;
- return uart_regs[u].rxchar;
-}
-
-int hal_uart_rx_flush(hal_uart_name_t u)
-{
- char x = 0;
- while(uart_regs[u].rxlevel) x = uart_regs[u].rxchar;
- return x;
-}
-