diff options
| author | Keith Packard <keithp@keithp.com> | 2012-08-28 18:13:02 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-08-28 23:00:23 -0700 |
| commit | fc9841ee5e92318471b6bec09b7075a788ab8872 (patch) | |
| tree | 021ff2c2e1f5844c11692878184a9746e3faec97 /src/cc1111/ao_spi.c | |
| parent | 27a879b4069ccedf8bbe39d7dbecf45000f29d8c (diff) | |
altos: Mostly working SPI radio link
This includes long delays to avoid overrunning the cc1111 input,
otherwise it works pretty well. The delays mean that we can't capture
the reply to a cmac command though, so more work is needed.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/cc1111/ao_spi.c')
| -rw-r--r-- | src/cc1111/ao_spi.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/src/cc1111/ao_spi.c b/src/cc1111/ao_spi.c index 2b4fd186..39d459f1 100644 --- a/src/cc1111/ao_spi.c +++ b/src/cc1111/ao_spi.c @@ -171,16 +171,20 @@ ao_spi_send_bus(void __xdata *block, uint16_t len) __reentrant #endif ao_dma_start(ao_spi_dma_out_id); ao_dma_trigger(ao_spi_dma_out_id); -#if AO_SPI_SLAVE - __critical while (!ao_spi_dma_out_done) - ao_sleep(&ao_spi_dma_out_done); -#else +#if !AO_SPI_SLAVE __critical while (!ao_spi_dma_in_done) ao_sleep(&ao_spi_dma_in_done); #endif } - +#if AO_SPI_SLAVE +void +ao_spi_send_wait(void) +{ + __critical while (!ao_spi_dma_out_done) + ao_sleep(&ao_spi_dma_out_done); +} +#endif /* Receive bytes over SPI. * @@ -221,11 +225,19 @@ ao_spi_recv_bus(void __xdata *block, uint16_t len) __reentrant #if !AO_SPI_SLAVE ao_dma_start(ao_spi_dma_out_id); ao_dma_trigger(ao_spi_dma_out_id); -#endif __critical while (!ao_spi_dma_in_done) ao_sleep(&ao_spi_dma_in_done); +#endif } +#if AO_SPI_SLAVE +void +ao_spi_recv_wait(void) +{ + __critical while (!ao_spi_dma_in_done) + ao_sleep(&ao_spi_dma_in_done); +} +#endif void ao_spi_init(void) |