altos: Restructure altos build to prepare for multi-arch support

[fw/altos] / src / ao_serial.c

diff --git a/src/ao_serial.c b/src/ao_serial.c
deleted file mode 100644 (file)
index 82370c6..0000000
--- a/src/ao_serial.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- * Copyright © 2009 Keith Packard <keithp@keithp.com>
- *
- * 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; version 2 of the License.
- *
- * 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, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- */
-
-#include "ao.h"
-
-volatile __xdata struct ao_fifo        ao_usart1_rx_fifo;
-volatile __xdata struct ao_fifo        ao_usart1_tx_fifo;
-
-void
-ao_serial_rx1_isr(void) __interrupt 3
-{
-       if (!ao_fifo_full(ao_usart1_rx_fifo))
-               ao_fifo_insert(ao_usart1_rx_fifo, U1DBUF);
-       ao_wakeup(&ao_usart1_rx_fifo);
-#if USE_SERIAL_STDIN
-       ao_wakeup(&ao_stdin_ready);
-#endif
-}
-
-static __xdata uint8_t ao_serial_tx1_started;
-
-static void
-ao_serial_tx1_start(void)
-{
-       if (!ao_fifo_empty(ao_usart1_tx_fifo) &&
-           !ao_serial_tx1_started)
-       {
-               ao_serial_tx1_started = 1;
-               ao_fifo_remove(ao_usart1_tx_fifo, U1DBUF);
-       }
-}
-
-void
-ao_serial_tx1_isr(void) __interrupt 14
-{
-       UTX1IF = 0;
-       ao_serial_tx1_started = 0;
-       ao_serial_tx1_start();
-       ao_wakeup(&ao_usart1_tx_fifo);
-}
-
-char
-ao_serial_getchar(void) __critical
-{
-       char    c;
-       while (ao_fifo_empty(ao_usart1_rx_fifo))
-               ao_sleep(&ao_usart1_rx_fifo);
-       ao_fifo_remove(ao_usart1_rx_fifo, c);
-       return c;
-}
-
-#if USE_SERIAL_STDIN
-char
-ao_serial_pollchar(void) __critical
-{
-       char    c;
-       if (ao_fifo_empty(ao_usart1_rx_fifo))
-               return AO_READ_AGAIN;
-       ao_fifo_remove(ao_usart1_rx_fifo,c);
-       return c;
-}
-#endif
-
-void
-ao_serial_putchar(char c) __critical
-{
-       while (ao_fifo_full(ao_usart1_tx_fifo))
-               ao_sleep(&ao_usart1_tx_fifo);
-       ao_fifo_insert(ao_usart1_tx_fifo, c);
-       ao_serial_tx1_start();
-}
-
-void
-ao_serial_drain(void) __critical
-{
-       while (!ao_fifo_empty(ao_usart1_tx_fifo))
-               ao_sleep(&ao_usart1_tx_fifo);
-}
-
-static __code struct {
-       uint8_t baud;
-       uint8_t gcr;
-} ao_serial_speeds[] = {
-       /* [AO_SERIAL_SPEED_4800] = */ {
-               /* .baud = */ 163,
-               /* .gcr  = */ (7 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB
-       },
-       /* [AO_SERIAL_SPEED_9600] = */ {
-               /* .baud = */ 163,
-               /* .gcr  = */ (8 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB
-       },
-       /* [AO_SERIAL_SPEED_19200] = */ {
-               /* .baud = */ 163,
-               /* .gcr  = */ (9 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB
-       },
-       /* [AO_SERIAL_SPEED_57600] = */ {
-               /* .baud = */ 59,
-               /* .gcr =  */ (11 << UxGCR_BAUD_E_SHIFT) | UxGCR_ORDER_LSB
-       },
-};
-
-void
-ao_serial_set_speed(uint8_t speed)
-{
-       ao_serial_drain();
-       if (speed > AO_SERIAL_SPEED_57600)
-               return;
-       U1UCR |= UxUCR_FLUSH;
-       U1BAUD = ao_serial_speeds[speed].baud;
-       U1GCR = ao_serial_speeds[speed].gcr;
-}
-
-void
-ao_serial_init(void)
-{
-#if HAS_SERIAL_1_ALT_1
-       /* Set up the USART pin assignment */
-       PERCFG = (PERCFG & ~PERCFG_U1CFG_ALT_MASK) | PERCFG_U1CFG_ALT_1;
-
-       P2DIR = (P2DIR & ~P2DIR_PRIP0_MASK) | P2DIR_PRIP0_USART1_USART0;
-
-       /* Make the USART pins be controlled by the USART */
-       P0SEL |= (1 << 5) | (1 << 4);
-#if HAS_SERIAL_1_HW_FLOW
-       P0SEL |= (1 << 3) | (1 << 2);
-#endif
-#else
-       /* Set up the USART pin assignment */
-       PERCFG = (PERCFG & ~PERCFG_U1CFG_ALT_MASK) | PERCFG_U1CFG_ALT_2;
-
-       P2SEL = (P2SEL & ~(P2SEL_PRI3P1_MASK | P2SEL_PRI2P1_MASK)) |
-               (P2SEL_PRI3P1_USART1 | P2SEL_PRI2P1_USART1);
-
-       /* Make the USART pins be controlled by the USART */
-       P1SEL |= (1 << 6) | (1 << 7);
-       P1SEL |= (1 << 5) | (1 << 4);
-#endif
-
-       /* UART mode with receiver enabled */
-       U1CSR = (UxCSR_MODE_UART | UxCSR_RE);
-
-       /* Pick a 4800 baud rate */
-       ao_serial_set_speed(AO_SERIAL_SPEED_4800);
-
-       /* Reasonable serial parameters */
-       U1UCR = (UxUCR_FLUSH |
-#if HAS_SERIAL_1_HW_FLOW
-                UxUCR_FLOW_ENABLE |
-#else
-                UxUCR_FLOW_DISABLE |
-#endif
-                UxUCR_D9_EVEN_PARITY |
-                UxUCR_BIT9_8_BITS |
-                UxUCR_PARITY_DISABLE |
-                UxUCR_SPB_1_STOP_BIT |
-                UxUCR_STOP_HIGH |
-                UxUCR_START_LOW);
-
-       IEN0 |= IEN0_URX1IE;
-       IEN2 |= IEN2_UTX1IE;
-}