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Some PIO setup was using SM 0 rather than the allocated SM (#940)

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Graham Sanderson 2022-07-27 08:24:42 -05:00 committed by GitHub
parent d1e7294dab
commit 0fa3e7247d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 4 deletions
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8
src/rp2_common/cyw43_driver/cyw43_bus_pio_spi.c
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@ -258,13 +258,13 @@ int cyw43_spi_transfer(cyw43_int_t *self, const uint8_t *tx, size_t tx_length, u
dma_channel_config out_config = dma_channel_get_default_config(bus_data->dma_out);
channel_config_set_bswap(&out_config, true);
channel_config_set_dreq(&out_config, pio_get_dreq(bus_data->pio, 0, 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_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, 0, false));
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);
@ -299,12 +299,12 @@ int cyw43_spi_transfer(cyw43_int_t *self, const uint8_t *tx, size_t tx_length, u
dma_channel_config out_config = dma_channel_get_default_config(bus_data->dma_out);
channel_config_set_bswap(&out_config, true);
channel_config_set_dreq(&out_config, pio_get_dreq(bus_data->pio, 0, 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);
bus_data->pio->fdebug = 1u << PIO_FDEBUG_TXSTALL_LSB;
pio_sm_set_enabled(bus_data->pio, 0, true);
pio_sm_set_enabled(bus_data->pio, bus_data->pio_sm, true);
while (!(bus_data->pio->fdebug & (1u << PIO_FDEBUG_TXSTALL_LSB))) {
tight_loop_contents(); // todo timeout
}