xobs/foboot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

spi: actually transmit data

Browse Source 
We were sending data on CS, not on CLK.

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross
2019-04-05 13:19:46 +08:00
parent d72925fdeb
commit c92af747cd
1 changed files with 7 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
sw/src/spi.c
View File

@@ -154,6 +154,7 @@ static void spi_set_state(struct ff_spi *spi, enum spi_state state) {
void spiPause(struct ff_spi *spi) {
(void)spi;
gpioSync();
// usleep(1);
return;
}
@@ -165,13 +166,11 @@ void spiBegin(struct ff_spi *spi) {
gpioWrite(spi->pins.hold, 1);
}
gpioWrite(spi->pins.cs, 0);
gpioSync();
}
void spiEnd(struct ff_spi *spi) {
(void)spi;
gpioWrite(spi->pins.cs, 1);
gpioSync();
}
static uint8_t spiXfer(struct ff_spi *spi, uint8_t out) {
@@ -517,39 +516,31 @@ struct spi_id spiId(struct ff_spi *spi) {
}
static void spi_decode_id(struct ff_spi *spi) {
#if 0
spi->id.manufacturer = "unknown";
spi->id.model = "unknown";
spi->id.capacity = "unknown";
spi->id.bytes = -1; // unknown
if (spi->id.manufacturer_id == 0xef) {
spi->id.manufacturer = "Winbond";
// spi->id.manufacturer = "Winbond";
if ((spi->id.memory_type == 0x70)
&& (spi->id.memory_size == 0x18)) {
spi->id.model = "W25Q128JV";
spi->id.capacity = "128 Mbit";
// spi->id.model = "W25Q128JV";
// spi->id.capacity = "128 Mbit";
spi->id.bytes = 16 * 1024 * 1024;
}
}
if (spi->id.manufacturer_id == 0x1f) {
spi->id.manufacturer = "Adesto";
// spi->id.manufacturer = "Adesto";
if ((spi->id.memory_type == 0x86)
&& (spi->id.memory_size == 0x01)) {
spi->id.model = "AT25SF161";
spi->id.capacity = "16 Mbit";
// spi->id.model = "AT25SF161";
// spi->id.capacity = "16 Mbit";
spi->id.bytes = 1 * 1024 * 1024;
}
}
#endif
return;
}
static void spi_get_id(struct ff_spi *spi) {
#if 0
// memset(&spi->id, 0xff, sizeof(spi->id));
spiBegin(spi);
spiCommand(spi, 0x90); // Read manufacturer ID
spiCommand(spi, 0x00); // Dummy byte 1
@@ -588,7 +579,6 @@ static void spi_get_id(struct ff_spi *spi) {
spi_decode_id(spi);
return;
#endif
}
void spiOverrideSize(struct ff_spi *spi, uint32_t size) {
@@ -813,9 +803,7 @@ int spiWrite(struct ff_spi *spi, uint32_t addr, const uint8_t *data, unsigned in
return 1;
}
int total = count;
while (count) {
// printf("\rProgramming @ %06x / %06x", addr, total);
fflush(stdout);
spiBegin(spi);
spiCommand(spi, 0x06);
@@ -837,8 +825,6 @@ int spiWrite(struct ff_spi *spi, uint32_t addr, const uint8_t *data, unsigned in
addr += i;
spi_wait_for_not_busy(spi);
}
// printf("\rProgramming @ %06x / %06x", addr, total);
// printf(" Done\n");
return 0;
}