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spi: add strings to device id 

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2018-12-18 22:09:49 -05:00
parent 91b4a74dc8
commit 09f0db5ca7
2 changed files with 50 additions and 14 deletions
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59
spi.c
View File

@ -407,23 +407,53 @@ void spiWriteSr(struct ff_spi *spi, int sr, uint8_t val) {
}
struct spi_id spiId(struct ff_spi *spi) {
struct spi_id id;
memset(&id, 0xff, sizeof(id));
return spi->id;
}
static void spi_decode_id(struct ff_spi *spi) {
spi->id.manufacturer = "unknown";
spi->id.model = "unknown";
spi->id.capacity = "unknown";
if (spi->id.manufacturer_id == 0xef) {
spi->id.manufacturer = "Winbond";
if ((spi->id.memory_type == 0x70)
&& (spi->id.memory_size == 0x18)) {
spi->id.model = "W25Q128JV";
spi->id.capacity = "128 Mbit";
}
}
if (spi->id.manufacturer_id == 0x1f) {
spi->id.manufacturer = "Adesto";
if ((spi->id.memory_type == 0x86)
&& (spi->id.memory_size == 0x01)) {
spi->id.model = "AT25SF161";
spi->id.capacity = "16 Mbit";
}
}
return;
}
static void spi_get_id(struct ff_spi *spi) {
memset(&spi->id, 0xff, sizeof(spi->id));
spiBegin(spi);
spiCommand(spi, 0x90); // Read manufacturer ID
spiCommand(spi, 0x00); // Dummy byte 1
spiCommand(spi, 0x00); // Dummy byte 2
spiCommand(spi, 0x00); // Dummy byte 3
id.manufacturer_id = spiCommandRx(spi);
id.device_id = spiCommandRx(spi);
spi->id.manufacturer_id = spiCommandRx(spi);
spi->id.device_id = spiCommandRx(spi);
spiEnd(spi);
spiBegin(spi);
spiCommand(spi, 0x9f); // Read device id
id._manufacturer_id = spiCommandRx(spi);
id.memory_type = spiCommandRx(spi);
id.memory_size = spiCommandRx(spi);
spi->id._manufacturer_id = spiCommandRx(spi);
spi->id.memory_type = spiCommandRx(spi);
spi->id.memory_size = spiCommandRx(spi);
spiEnd(spi);
spiBegin(spi);
@ -431,7 +461,7 @@ struct spi_id spiId(struct ff_spi *spi) {
spiCommand(spi, 0x00); // Dummy byte 1
spiCommand(spi, 0x00); // Dummy byte 2
spiCommand(spi, 0x00); // Dummy byte 3
id.signature = spiCommandRx(spi);
spi->id.signature = spiCommandRx(spi);
spiEnd(spi);
spiBegin(spi);
@ -440,13 +470,14 @@ struct spi_id spiId(struct ff_spi *spi) {
spiCommand(spi, 0x00); // Dummy byte 2
spiCommand(spi, 0x00); // Dummy byte 3
spiCommand(spi, 0x00); // Dummy byte 4
id.serial[0] = spiCommandRx(spi);
id.serial[1] = spiCommandRx(spi);
id.serial[2] = spiCommandRx(spi);
id.serial[3] = spiCommandRx(spi);
spi->id.serial[0] = spiCommandRx(spi);
spi->id.serial[1] = spiCommandRx(spi);
spi->id.serial[2] = spiCommandRx(spi);
spi->id.serial[3] = spiCommandRx(spi);
spiEnd(spi);
return id;
spi_decode_id(spi);
return;
}
int spiSetType(struct ff_spi *spi, enum spi_type type) {
@ -673,7 +704,7 @@ int spiInit(struct ff_spi *spi) {
// Disable WP
gpioWrite(spi->pins.wp, 1);
spi->id = spiId(spi);
spi_get_id(spi);
if (spi->id.manufacturer_id == 0x1f)
spi->quirks |= SQ_SR2_FROM_SR1;
if (spi->id.manufacturer_id == 0xef)

5
spi.h
View File

@ -42,6 +42,9 @@ struct spi_id {
uint8_t memory_size; // Result from 0x9f
uint8_t signature; // Result from 0xab
uint8_t serial[4]; // Result from 0x4b
const char *manufacturer;
const char *model;
const char *capacity;
};
struct ff_spi;
@ -63,7 +66,9 @@ uint8_t spiReadSr(struct ff_spi *spi, int sr);
void spiWriteSr(struct ff_spi *spi, int sr, uint8_t val);
int spiSetType(struct ff_spi *spi, enum spi_type type);
int spiRead(struct ff_spi *spi, uint32_t addr, uint8_t *data, unsigned int count);
struct spi_id spiId(struct ff_spi *spi);
//int spi_wait_for_not_busy(struct ff_spi *spi);
int spiWrite(struct ff_spi *spi, uint32_t addr, const uint8_t *data, unsigned int count);
uint8_t spiReset(struct ff_spi *spi);