*/
#include "ao.h"
+#ifdef AO_BTM_INT_PORT
+#include <ao_exti.h>
+#endif
#ifndef ao_serial_btm_getchar
#define ao_serial_btm_putchar ao_serial1_putchar
-#define ao_serial_btm_pollchar ao_serial1_pollchar
+#define _ao_serial_btm_pollchar _ao_serial1_pollchar
+#define _ao_serial_btm_sleep() ao_sleep((void *) &ao_serial1_rx_fifo)
#define ao_serial_btm_set_speed ao_serial1_set_speed
#define ao_serial_btm_drain ao_serial1_drain
#endif
#define AO_BTM_MAX_REPLY 16
__xdata char ao_btm_reply[AO_BTM_MAX_REPLY];
+/*
+ * Read one bluetooth character.
+ * Returns AO_READ_AGAIN if no character arrives within 10ms
+ */
+
+static int
+ao_btm_getchar(void)
+{
+ int c;
+
+ ao_arch_block_interrupts();
+ while ((c = _ao_serial_btm_pollchar()) == AO_READ_AGAIN) {
+ ao_alarm(AO_MS_TO_TICKS(10));
+ c = _ao_serial_btm_sleep();
+ ao_clear_alarm();
+ if (c) {
+ c = AO_READ_AGAIN;
+ break;
+ }
+ }
+ ao_arch_release_interrupts();
+ return c;
+}
+
/*
* Read a line of data from the serial port, truncating
* it after a few characters.
{
uint8_t ao_btm_reply_len = 0;
int c;
-
- for (;;) {
-
- while ((c = ao_serial_btm_pollchar()) != AO_READ_AGAIN) {
- ao_btm_log_in_char(c);
- if (ao_btm_reply_len < sizeof (ao_btm_reply))
- ao_btm_reply[ao_btm_reply_len++] = c;
- if (c == '\r' || c == '\n')
- goto done;
- }
- for (c = 0; c < 10; c++) {
- ao_delay(AO_MS_TO_TICKS(10));
- if (!ao_fifo_empty(ao_serial1_rx_fifo))
- break;
- }
- if (c == 10)
- goto done;
+ uint8_t l;
+
+ while ((c = ao_btm_getchar()) != AO_READ_AGAIN) {
+ ao_btm_log_in_char(c);
+ if (ao_btm_reply_len < sizeof (ao_btm_reply))
+ ao_btm_reply[ao_btm_reply_len++] = c;
+ if (c == '\r' || c == '\n')
+ break;
}
-done:
- for (c = ao_btm_reply_len; c < sizeof (ao_btm_reply);)
- ao_btm_reply[c++] = '\0';
+ for (l = ao_btm_reply_len; l < sizeof (ao_btm_reply);)
+ ao_btm_reply[l++] = '\0';
return ao_btm_reply_len;
}
{
char c;
- while (c = *cmd++)
+ while ((c = *cmd++) != '\0')
ao_btm_putchar(c);
}
void
ao_btm(void)
{
+#ifdef AO_BTM_RESET_PORT
+ ao_gpio_set(AO_BTM_RESET_PORT, AO_BTM_RESET_PIN, AO_BTM_RESET, 0);
+ ao_delay(AO_MS_TO_TICKS(20));
+ ao_gpio_set(AO_BTM_RESET_PORT, AO_BTM_RESET_PIN, AO_BTM_RESET, 1);
+#endif
+
/*
* Wait for the bluetooth device to boot
*/
/* Turn off status reporting */
ao_btm_cmd("ATQ1\r");
- ao_btm_stdio = ao_add_stdio(ao_serial_btm_pollchar,
+ ao_btm_stdio = ao_add_stdio(_ao_serial_btm_pollchar,
ao_serial_btm_putchar,
NULL);
ao_btm_echo(0);
while (!ao_btm_connected)
ao_sleep(&ao_btm_connected);
while (ao_btm_connected) {
- ao_led_for(AO_LED_GREEN, AO_MS_TO_TICKS(20));
+ ao_led_for(AO_BT_LED, AO_MS_TO_TICKS(20));
ao_delay(AO_SEC_TO_TICKS(3));
}
}
#define BT_PDIR P2DIR
#define BT_PINP P2INP
#define BT_IEN2_PIE IEN2_P2IE
+#define BT_CC1111 1
#endif
#if BT_LINK_ON_P1
#define BT_PICTL_ICON PICTL_P1ICON
#define BT_PDIR P1DIR
#define BT_PINP P1INP
#define BT_IEN2_PIE IEN2_P1IE
+#define BT_CC1111 1
#endif
void
ao_btm_check_link()
{
+#if BT_CC1111
ao_arch_critical(
/* Check the pin and configure the interrupt detector to wait for the
* pin to flip the other way
PICTL &= ~BT_PICTL_ICON;
}
);
+#endif
}
+#if BT_CC1111
void
ao_btm_isr(void)
#if BT_LINK_ON_P1
}
BT_PIFG = 0;
}
+#endif
+
+#ifdef AO_BTM_INT_PORT
+void
+ao_btm_isr(void)
+{
+ ao_btm_check_link();
+ ao_wakeup(&ao_btm_connected);
+}
+#endif
void
ao_btm_init (void)
ao_serial_btm_set_speed(AO_SERIAL_SPEED_19200);
+#ifdef AO_BTM_RESET_PORT
+ ao_enable_output(AO_BTM_RESET_PORT,AO_BTM_RESET_PIN,AO_BTM_RESET,0);
+#endif
+
+#ifdef AO_BTM_INT_PORT
+ ao_enable_port(AO_BTM_INT_PORT);
+ ao_exti_setup(AO_BTM_INT_PORT, AO_BTM_INT_PIN,
+ AO_EXTI_MODE_FALLING|AO_EXTI_MODE_RISING|AO_EXTI_PRIORITY_LOW,
+ ao_btm_isr);
+#endif
+
+#if BT_CC1111
#if BT_LINK_ON_P1
/*
* Configure ser reset line
/* Enable interrupts */
IEN2 |= BT_IEN2_PIE;
+#endif
/* Check current pin state */
ao_btm_check_link();
+#ifdef AO_BTM_INT_PORT
+ ao_exti_enable(AO_BTM_INT_PORT, AO_BTM_INT_PIN);
+#endif
+
#if BT_LINK_ON_P2
/* Eable the pin interrupt */
PICTL |= PICTL_P2IEN;