diff options
Diffstat (limited to 'src/drivers/ao_pyro_slave.c')
| -rw-r--r-- | src/drivers/ao_pyro_slave.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/drivers/ao_pyro_slave.c b/src/drivers/ao_pyro_slave.c new file mode 100644 index 00000000..e6c73a3c --- /dev/null +++ b/src/drivers/ao_pyro_slave.c @@ -0,0 +1,51 @@ +/* + * Copyright © 2011 Keith Packard <keithp@keithp.com> + * + * 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. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include "ao.h" +#include "ao_product.h" + +struct ao_companion_command ao_companion_command; + +static const struct ao_companion_setup ao_telepyro_setup = { + .board_id = AO_idProduct_NUMBER, + .board_id_inverse = ~AO_idProduct_NUMBER, + .update_period = 50, + .channels = AO_TELEPYRO_NUM_ADC, +}; + +void ao_spi_slave(void) +{ + if (!ao_spi_read((uint8_t *) &ao_companion_command, + sizeof (ao_companion_command))) + return; + + /* Figure out the outbound data */ + switch (ao_companion_command.command) { + case AO_COMPANION_SETUP: + ao_spi_write((uint8_t *) &ao_telepyro_setup, + sizeof (ao_telepyro_setup)); + break; + case AO_COMPANION_FETCH: + ao_spi_write((uint8_t *) &ao_adc_ring[ao_adc_ring_prev(ao_adc_head)].adc, + AO_TELEPYRO_NUM_ADC * sizeof (uint16_t)); + break; + case AO_COMPANION_NOTIFY: + break; + default: + return; + } +} |