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fix constness

This commit is contained in:
Jeff Epler 2023-09-15 14:45:53 -05:00
parent cff65bbbe2
commit 91b98dc9d5
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GPG Key ID: D5BF15AB975AB4DE
2 changed files with 4 additions and 4 deletions
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2
shared-bindings/dotclockframebuffer/__init__.h
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@ -53,4 +53,4 @@ typedef struct {
uint32_t clk_mask; uint32_t clk_mask;
} dotclockframebuffer_ioexpander_spi_bus; } dotclockframebuffer_ioexpander_spi_bus;
void dotclockframebuffer_ioexpander_send_init_sequence(dotclockframebuffer_ioexpander_spi_bus *bus, uint8_t *init_sequence, uint16_t init_sequence_len); void dotclockframebuffer_ioexpander_send_init_sequence(dotclockframebuffer_ioexpander_spi_bus *bus, const uint8_t *init_sequence, uint16_t init_sequence_len);

6
shared-module/dotclockframebuffer/__init__.c
View File

@ -43,7 +43,7 @@ static void ioexpander_bus_send(dotclockframebuffer_ioexpander_spi_bus *bus,
// * CPOL=CPHA=0 // * CPOL=CPHA=0
// * CS deasserted after each init sequence step, but not otherwise just like // * CS deasserted after each init sequence step, but not otherwise just like
// displayio fourwire bus without data_as_commands // displayio fourwire bus without data_as_commands
void dotclockframebuffer_ioexpander_send_init_sequence(dotclockframebuffer_ioexpander_spi_bus *bus, uint8_t *init_sequence, uint16_t init_sequence_len) { void dotclockframebuffer_ioexpander_send_init_sequence(dotclockframebuffer_ioexpander_spi_bus *bus, const uint8_t *init_sequence, uint16_t init_sequence_len) {
while (!common_hal_busio_i2c_try_lock(bus->bus)) { while (!common_hal_busio_i2c_try_lock(bus->bus)) {
RUN_BACKGROUND_TASKS; RUN_BACKGROUND_TASKS;
} }
@ -52,11 +52,11 @@ void dotclockframebuffer_ioexpander_send_init_sequence(dotclockframebuffer_ioexp
pin_change(bus, /* set */ bus->cs_mask, /* clear */ bus->clk_mask); pin_change(bus, /* set */ bus->cs_mask, /* clear */ bus->clk_mask);
for (uint32_t i = 0; i < init_sequence_len; /* NO INCREMENT */) { for (uint32_t i = 0; i < init_sequence_len; /* NO INCREMENT */) {
uint8_t *cmd = init_sequence + i; const uint8_t *cmd = init_sequence + i;
uint8_t data_size = *(cmd + 1); uint8_t data_size = *(cmd + 1);
bool delay = (data_size & DELAY) != 0; bool delay = (data_size & DELAY) != 0;
data_size &= ~DELAY; data_size &= ~DELAY;
uint8_t *data = cmd + 2; const uint8_t *data = cmd + 2;
ioexpander_bus_send(bus, true, cmd, 1); ioexpander_bus_send(bus, true, cmd, 1);
ioexpander_bus_send(bus, false, data, data_size); ioexpander_bus_send(bus, false, data, data_size);