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software_spi: set rate limiting ticks from the host

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Signed-off-by: Timofey Titovets <nefelim4ag@gmail.com>
This commit is contained in:
Timofey Titovets
2025-03-13 04:50:46 +01:00
committed by KevinOConnor
parent b826844b34
commit abc76ee963
3 changed files with 48 additions and 25 deletions
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15
src/spi_software.c
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@@ -20,11 +20,10 @@ struct spi_software {
};
void
command_spi_set_software_bus(uint32_t *args)
command_spi_set_sw_bus(uint32_t *args)
{
uint8_t mode = args[4];
uint32_t rate = args[5];
uint8_t div = 0;
uint32_t pulse_ticks = args[5];
if (mode > 3)
shutdown("Invalid spi config");
@@ -34,14 +33,12 @@ command_spi_set_software_bus(uint32_t *args)
ss->mosi = gpio_out_setup(args[2], 0);
ss->sclk = gpio_out_setup(args[3], 0);
ss->mode = mode;
while (((CONFIG_CLOCK_FREQ/2) >> div) > rate)
div++;
ss->sck_ticks = 1 << div;
ss->sck_ticks = pulse_ticks;
spidev_set_software_bus(spi, ss);
}
DECL_COMMAND(command_spi_set_software_bus,
"spi_set_software_bus oid=%c miso_pin=%u mosi_pin=%u sclk_pin=%u"
" mode=%u rate=%u");
DECL_COMMAND(command_spi_set_sw_bus,
"spi_set_sw_bus oid=%c miso_pin=%u mosi_pin=%u sclk_pin=%u"
" mode=%u pulse_ticks=%u");
void
spi_software_prepare(struct spi_software *ss)