*
* 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.
+ * the Free Software Foundation; either version 2 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
static __xdata struct ao_radio_spi_reply ao_radio_spi_reply;
static __xdata struct ao_radio_spi_request ao_radio_spi_request;
-static __xdata uint8_t ao_radio_done;
+static volatile __xdata uint8_t ao_radio_wait_mode;
+static volatile __xdata uint8_t ao_radio_done = 0;
+static volatile __xdata uint8_t ao_radio_ready = 1;
static __xdata uint8_t ao_radio_mutex;
+static __xdata uint8_t ao_radio_aes_seq;
__xdata int8_t ao_radio_cmac_rssi;
+#if 0
+#define PRINTD(...) do { printf ("\r%5u %s: ", ao_tick_count, __func__); printf(__VA_ARGS__); flush(); } while(0)
+#else
+#define PRINTD(...)
+#endif
+
static void
ao_radio_isr(void)
{
- ao_exti_disable(AO_RADIO_INT_PORT, AO_RADIO_INT_PIN);
- ao_radio_done = 1;
- ao_wakeup(&ao_radio_done);
+ if (ao_gpio_get(AO_RADIO_INT_PORT, AO_RADIO_INT_PIN, AO_RADIO_INT)) {
+ ao_radio_ready = 1;
+ ao_wakeup((void *) &ao_radio_ready);
+ } else {
+ ao_radio_done = 1;
+ ao_wakeup((void *) &ao_radio_done);
+ }
}
static void
{
ao_spi_get_bit(AO_RADIO_CS_PORT, AO_RADIO_CS_PIN, AO_RADIO_CS,
AO_RADIO_SPI_BUS,
- AO_SPI_SPEED_1MHz);
+ AO_SPI_SPEED_2MHz);
}
static void
AO_RADIO_SPI_BUS);
}
-
static uint8_t
ao_radio_master_send(void)
{
+ uint8_t ret;
+
+ PRINTD("send %d\n", ao_radio_spi_request.len);
ao_radio_done = 0;
- ao_exti_enable(AO_RADIO_INT_PORT, AO_RADIO_INT_PIN);
+
+ /* Wait for radio chip to be ready for a command
+ */
+
+ PRINTD("Waiting radio ready\n");
+ ao_arch_block_interrupts();
+ ao_radio_ready = ao_gpio_get(AO_RADIO_INT_PORT,
+ AO_RADIO_INT_PIN, AO_RADIO_INT);
+ ret = 0;
+ while (!ao_radio_ready) {
+ ret = ao_sleep((void *) &ao_radio_ready);
+ if (ret)
+ break;
+ }
+ ao_arch_release_interrupts();
+ if (ret)
+ return 0;
+
+ PRINTD("radio_ready %d radio_done %d\n", ao_radio_ready, ao_radio_done);
+
+ /* Send the command
+ */
+ ao_radio_wait_mode = 0;
ao_radio_master_start();
ao_spi_send(&ao_radio_spi_request,
ao_radio_spi_request.len,
AO_RADIO_SPI_BUS);
ao_radio_master_stop();
- cli();
+ PRINTD("waiting for send done %d\n", ao_radio_done);
+ ao_arch_block_interrupts();
while (!ao_radio_done)
- if (ao_sleep(&ao_radio_done))
+ if (ao_sleep((void *) &ao_radio_done))
break;
- sei();
+ ao_arch_release_interrupts();
+ PRINTD ("sent, radio done %d isr_0 %d isr_1 %d\n", ao_radio_done, isr_0_count, isr_1_count);
return ao_radio_done;
}
-static void
-ao_radio_master_recv(uint16_t len)
-{
- ao_radio_master_start();
- ao_spi_recv(&ao_radio_spi_reply,
- len,
- AO_RADIO_SPI_BUS);
- ao_radio_master_stop();
-}
-
static void
ao_radio_get(uint8_t req, uint8_t len)
{
static void
ao_radio_get_data(__xdata void *d, uint8_t size)
{
+ PRINTD ("fetch\n");
ao_radio_master_start();
ao_spi_recv(&ao_radio_spi_reply,
AO_RADIO_SPI_REPLY_HEADER_LEN + size,
AO_RADIO_SPI_BUS);
ao_radio_master_stop();
ao_xmemcpy(d, ao_radio_spi_reply.payload, size);
+ PRINTD ("fetched %d\n", size);
}
void
uint8_t
-ao_radio_recv(__xdata void *d, uint8_t size)
+ao_radio_recv(__xdata void *d, uint8_t size, uint8_t timeout)
{
int8_t ret;
uint8_t recv;
ao_radio_get(AO_RADIO_SPI_RECV, 0);
ao_radio_spi_request.recv_len = size;
+ ao_radio_spi_request.timeout = timeout;
recv = ao_radio_master_send();
if (!recv) {
ao_radio_put();
ao_radio_get_data(d, size);
recv = ao_radio_spi_reply.status;
ao_radio_put();
+
return recv;
}
-int8_t
-ao_radio_cmac_send(__xdata void *packet, uint8_t len) __reentrant
+static void
+ao_radio_cmac_set_key(void)
{
- if (len > AO_CMAC_MAX_LEN)
- return AO_RADIO_CMAC_LEN_ERROR;
-
+ if (ao_radio_aes_seq == ao_config_aes_seq)
+ return;
/* Set the key.
*/
+ PRINTD ("set key\n");
ao_radio_get(AO_RADIO_SPI_CMAC_KEY, AO_AES_LEN);
ao_xmemcpy(&ao_radio_spi_request.payload, &ao_config.aes_key, AO_AES_LEN);
ao_radio_master_send();
ao_radio_put();
+ PRINTD ("key set\n");
+ ao_radio_aes_seq = ao_config_aes_seq;
+}
+
+int8_t
+ao_radio_cmac_send(__xdata void *packet, uint8_t len) __reentrant
+{
+ if (len > AO_CMAC_MAX_LEN)
+ return AO_RADIO_CMAC_LEN_ERROR;
+
+ ao_radio_cmac_set_key();
+
+ PRINTD ("cmac_send: send %d\n", len);
/* Send the data
*/
+ PRINTD ("sending packet\n");
ao_radio_get(AO_RADIO_SPI_CMAC_SEND, len);
ao_xmemcpy(&ao_radio_spi_request.payload, packet, len);
ao_radio_master_send();
ao_radio_put();
+ PRINTD ("packet sent\n");
return AO_RADIO_CMAC_OK;
}
ao_radio_cmac_recv(__xdata void *packet, uint8_t len, uint16_t timeout) __reentrant
{
int8_t ret;
- uint8_t recv;
+ int8_t recv;
if (len > AO_CMAC_MAX_LEN)
return AO_RADIO_CMAC_LEN_ERROR;
- /* Set the key.
- */
- ao_radio_get(AO_RADIO_SPI_CMAC_KEY, AO_AES_LEN);
- ao_radio_spi_request.timeout = timeout;
- ao_xmemcpy(&ao_radio_spi_request.payload, &ao_config.aes_key, AO_AES_LEN);
- ao_radio_master_send();
- ao_radio_put();
+ ao_radio_cmac_set_key();
/* Recv the data
*/
-
+ PRINTD ("queuing recv\n");
ao_radio_get(AO_RADIO_SPI_CMAC_RECV, 0);
ao_radio_spi_request.recv_len = len;
+ ao_radio_spi_request.timeout = timeout;
recv = ao_radio_master_send();
+ PRINTD ("recv queued: %d\n", recv);
if (!recv) {
ao_radio_put();
ao_radio_recv_abort();
return AO_RADIO_CMAC_TIMEOUT;
}
+
+ PRINTD ("fetching data\n");
ao_radio_get_data(packet, len);
recv = ao_radio_spi_reply.status;
+ ao_radio_cmac_rssi = ao_radio_spi_reply.rssi;
ao_radio_put();
+ PRINTD ("data fetched: %d %d\n", recv, ao_radio_cmac_rssi);
return recv;
}
ao_enable_port(AO_RADIO_INT_PORT);
ao_exti_setup(AO_RADIO_INT_PORT,
AO_RADIO_INT_PIN,
- AO_EXTI_MODE_FALLING,
+ AO_EXTI_MODE_RISING|AO_EXTI_MODE_FALLING,
ao_radio_isr);
+ ao_exti_enable(AO_RADIO_INT_PORT, AO_RADIO_INT_PIN);
ao_cmd_register(&ao_radio_cmds[0]);
}
projects / fw / altos / blobdiff