abawo/pico-sdk
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix for cyw43 driver working with SMs other than 0 (#1080)

Browse Source
This commit is contained in:
Lord-Lucan 2022-10-27 22:06:33 +01:00 committed by GitHub
parent a88baafc16
commit e4da37cf0c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/rp2_common/cyw43_driver/cyw43_bus_pio_spi.c
View File

@ -260,14 +260,14 @@ int cyw43_spi_transfer(cyw43_int_t *self, const uint8_t *tx, size_t tx_length, u
channel_config_set_bswap(&out_config, true);
channel_config_set_dreq(&out_config, pio_get_dreq(bus_data->pio, bus_data->pio_sm, true));
dma_channel_configure(bus_data->dma_out, &out_config, &bus_data->pio->txf[0], tx, tx_length / 4, true);
dma_channel_configure(bus_data->dma_out, &out_config, &bus_data->pio->txf[bus_data->pio_sm], tx, tx_length / 4, true);
dma_channel_config in_config = dma_channel_get_default_config(bus_data->dma_in);
channel_config_set_bswap(&in_config, true);
channel_config_set_dreq(&in_config, pio_get_dreq(bus_data->pio, bus_data->pio_sm, false));
channel_config_set_write_increment(&in_config, true);
channel_config_set_read_increment(&in_config, false);
dma_channel_configure(bus_data->dma_in, &in_config, rx + tx_length, &bus_data->pio->rxf[0], rx_length / 4 - tx_length / 4, true);
dma_channel_configure(bus_data->dma_in, &in_config, rx + tx_length, &bus_data->pio->rxf[bus_data->pio_sm], rx_length / 4 - tx_length / 4, true);
pio_sm_set_enabled(bus_data->pio, bus_data->pio_sm, true);
__compiler_memory_barrier();
@ -301,11 +301,12 @@ int cyw43_spi_transfer(cyw43_int_t *self, const uint8_t *tx, size_t tx_length, u
channel_config_set_bswap(&out_config, true);
channel_config_set_dreq(&out_config, pio_get_dreq(bus_data->pio, bus_data->pio_sm, true));
dma_channel_configure(bus_data->dma_out, &out_config, &bus_data->pio->txf[0], tx, tx_length / 4, true);
dma_channel_configure(bus_data->dma_out, &out_config, &bus_data->pio->txf[bus_data->pio_sm], tx, tx_length / 4, true);
bus_data->pio->fdebug = 1u << PIO_FDEBUG_TXSTALL_LSB;
uint32_t fdebug_tx_stall = 1u << (PIO_FDEBUG_TXSTALL_LSB + bus_data->pio_sm);
bus_data->pio->fdebug = fdebug_tx_stall;
pio_sm_set_enabled(bus_data->pio, bus_data->pio_sm, true);
while (!(bus_data->pio->fdebug & (1u << PIO_FDEBUG_TXSTALL_LSB))) {
while (!(bus_data->pio->fdebug & fdebug_tx_stall)) {
tight_loop_contents(); // todo timeout
}
__compiler_memory_barrier();