diff options
| author | Keith Packard <keithp@keithp.com> | 2012-11-01 10:48:08 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-11-01 10:48:08 -0700 |
| commit | 86f8b92149d1027b1d6d6b1cae097cfe47b02090 (patch) | |
| tree | d0bfeff14629951fc384837e2cbf9b0f1f120cae /src | |
| parent | fcdaa0d748058a7f52a1bdc1a1627dc394762e5a (diff) | |
altos/stm: Support LEDs on multiple ports
Split out the bits in a fairly simplistic fashion so that we support
no more than 16 LEDs still.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/stm/ao_led.c | 62 |
1 files changed, 58 insertions, 4 deletions
diff --git a/src/stm/ao_led.c b/src/stm/ao_led.c index ee313b6f..0acab106 100644 --- a/src/stm/ao_led.c +++ b/src/stm/ao_led.c @@ -22,13 +22,31 @@ __pdata uint16_t ao_led_enable; void ao_led_on(uint16_t colors) { +#ifdef LED_PORT LED_PORT->bsrr = (colors & ao_led_enable); +#else +#ifdef LED_PORT_0 + LED_PORT_0->bsrr = ((colors & ao_led_enable) & LED_PORT_0_MASK) << LED_PORT_0_SHIFT; +#endif +#ifdef LED_PORT_1 + LED_PORT_1->bsrr = ((colors & ao_led_enable) & LED_PORT_1_MASK) << LED_PORT_1_SHIFT; +#endif +#endif } void ao_led_off(uint16_t colors) { +#ifdef LED_PORT LED_PORT->bsrr = (uint32_t) (colors & ao_led_enable) << 16; +#else +#ifdef LED_PORT_0 + LED_PORT_0->bsrr = ((uint32_t) (colors & ao_led_enable) & LED_PORT_0_MASK) << (LED_PORT_0_SHIFT + 16); +#endif +#ifdef LED_PORT_1 + LED_PORT_1->bsrr = ((uint32_t) (colors & ao_led_enable) & LED_PORT_1_MASK) << (LED_PORT_1_SHIFT + 16); +#endif +#endif } void @@ -37,13 +55,23 @@ ao_led_set(uint16_t colors) uint16_t on = colors & ao_led_enable; uint16_t off = ~colors & ao_led_enable; - LED_PORT->bsrr = off << 16 | on; + ao_led_off(off); + ao_led_on(on); } void ao_led_toggle(uint16_t colors) { +#ifdef LED_PORT LED_PORT->odr ^= (colors & ao_led_enable); +#else +#ifdef LED_PORT_0 + LED_PORT_0->odr ^= ((colors & ao_led_enable) & LED_PORT_0_MASK) << LED_PORT_0_SHIFT; +#endif +#ifdef LED_PORT_1 + LED_PORT_1->odr ^= ((colors & ao_led_enable) & LED_PORT_1_MASK) << LED_PORT_1_SHIFT; +#endif +#endif } void @@ -54,18 +82,44 @@ ao_led_for(uint16_t colors, uint16_t ticks) __reentrant ao_led_off(colors); } +#define init_led_pin(port, bit) do { \ + stm_moder_set(port, bit, STM_MODER_OUTPUT); \ + stm_otyper_set(port, bit, STM_OTYPER_PUSH_PULL); \ + } while (0) + void ao_led_init(uint16_t enable) { int bit; - stm_rcc.ahbenr |= (1 << LED_PORT_ENABLE); ao_led_enable = enable; +#ifdef LED_PORT + stm_rcc.ahbenr |= (1 << LED_PORT_ENABLE); LED_PORT->odr &= ~enable; +#else +#ifdef LED_PORT_0 + stm_rcc.ahbenr |= (1 << LED_PORT_0_ENABLE); + LED_PORT_0->odr &= ~((enable & ao_led_enable) & LED_PORT_0_MASK) << LED_PORT_0_SHIFT; +#endif +#ifdef LED_PORT_1 + stm_rcc.ahbenr |= (1 << LED_PORT_1_ENABLE); + LED_PORT_1->odr &= ~((enable & ao_led_enable) & LED_PORT_1_MASK) << LED_PORT_1_SHIFT; +#endif +#endif for (bit = 0; bit < 16; bit++) { if (enable & (1 << bit)) { - stm_moder_set(LED_PORT, bit, STM_MODER_OUTPUT); - stm_otyper_set(LED_PORT, bit, STM_OTYPER_PUSH_PULL); +#ifdef LED_PORT + init_led_pin(LED_PORT, bit); +#else +#ifdef LED_PORT_0 + if (LED_PORT_0_MASK & (1 << bit)) + init_led_pin(LED_PORT_0, bit + LED_PORT_0_SHIFT); +#endif +#ifdef LED_PORT_1 + if (LED_PORT_1_MASK & (1 << bit)) + init_led_pin(LED_PORT_1, bit + LED_PORT_1_SHIFT); +#endif +#endif } } } |