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drivers/mtd_spi_nor: introduce helper function to get SPI device

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This commit is contained in:
Benjamin Valentin 2020-10-25 20:51:11 +01:00
parent 0425325260
commit 27cf34d836
1 changed files with 24 additions and 19 deletions
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43
drivers/mtd_spi_nor/mtd_spi_nor.c
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@ -64,24 +64,24 @@
#define JEDEC_BANK(n) ((n) << 8)
typedef enum {
SPI_NOR_JEDEC_ATMEL = 0x1F | JEDEC_BANK(1),
SPI_NOR_JEDEC_ATMEL = 0x1F | JEDEC_BANK(1),
} jedec_manuf_t;
/** @} */
static inline spi_t _get_spi(const mtd_spi_nor_t *dev)
{
return dev->params->spi;
}
static void mtd_spi_acquire(const mtd_spi_nor_t *dev)
{
spi_acquire(dev->params->spi, dev->params->cs,
spi_acquire(_get_spi(dev), dev->params->cs,
dev->params->mode, dev->params->clk);
}
static void mtd_spi_release(const mtd_spi_nor_t *dev)
{
spi_release(dev->params->spi);
}
static bool mtd_spi_manuf_match(const mtd_jedec_id_t *id, jedec_manuf_t manuf)
{
return manuf == ((id->bank << 8) | id->manuf);
spi_release(_get_spi(dev));
}
/**
@ -111,12 +111,12 @@ static void mtd_spi_cmd_addr_read(const mtd_spi_nor_t *dev, uint8_t opcode,
}
/* Send opcode followed by address */
spi_transfer_byte(dev->params->spi, dev->params->cs, true, opcode);
spi_transfer_bytes(dev->params->spi, dev->params->cs, true,
spi_transfer_byte(_get_spi(dev), dev->params->cs, true, opcode);
spi_transfer_bytes(_get_spi(dev), dev->params->cs, true,
(char *)addr_buf, NULL, dev->params->addr_width);
/* Read data */
spi_transfer_bytes(dev->params->spi, dev->params->cs, false,
spi_transfer_bytes(_get_spi(dev), dev->params->cs, false,
NULL, dest, count);
}
@ -147,16 +147,16 @@ static void mtd_spi_cmd_addr_write(const mtd_spi_nor_t *dev, uint8_t opcode,
}
/* Send opcode followed by address */
spi_transfer_byte(dev->params->spi, dev->params->cs, true, opcode);
spi_transfer_byte(_get_spi(dev), dev->params->cs, true, opcode);
/* only keep CS asserted when there is data that follows */
bool cont = (count > 0);
spi_transfer_bytes(dev->params->spi, dev->params->cs, cont,
spi_transfer_bytes(_get_spi(dev), dev->params->cs, cont,
(char *)addr_buf, NULL, dev->params->addr_width);
/* Write data */
if (cont) {
spi_transfer_bytes(dev->params->spi, dev->params->cs,
spi_transfer_bytes(_get_spi(dev), dev->params->cs,
false, (void *)src, NULL, count);
}
}
@ -175,7 +175,7 @@ static void mtd_spi_cmd_read(const mtd_spi_nor_t *dev, uint8_t opcode, void *des
TRACE("mtd_spi_cmd_read: %p, %02x, %p, %" PRIu32 "\n",
(void *)dev, (unsigned int)opcode, dest, count);
spi_transfer_regs(dev->params->spi, dev->params->cs, opcode, NULL, dest, count);
spi_transfer_regs(_get_spi(dev), dev->params->cs, opcode, NULL, dest, count);
}
/**
@ -192,7 +192,7 @@ static void __attribute__((unused)) mtd_spi_cmd_write(const mtd_spi_nor_t *dev,
TRACE("mtd_spi_cmd_write: %p, %02x, %p, %" PRIu32 "\n",
(void *)dev, (unsigned int)opcode, src, count);
spi_transfer_regs(dev->params->spi, dev->params->cs, opcode,
spi_transfer_regs(_get_spi(dev), dev->params->cs, opcode,
(void *)src, NULL, count);
}
@ -208,7 +208,12 @@ static void mtd_spi_cmd(const mtd_spi_nor_t *dev, uint8_t opcode)
TRACE("mtd_spi_cmd: %p, %02x\n",
(void *)dev, (unsigned int)opcode);
spi_transfer_byte(dev->params->spi, dev->params->cs, false, opcode);
spi_transfer_byte(_get_spi(dev), dev->params->cs, false, opcode);
}
static bool mtd_spi_manuf_match(const mtd_jedec_id_t *id, jedec_manuf_t manuf)
{
return manuf == ((id->bank << 8) | id->manuf);
}
/**
@ -381,7 +386,7 @@ static int mtd_spi_nor_init(mtd_dev_t *mtd)
mtd_spi_nor_t *dev = (mtd_spi_nor_t *)mtd;
DEBUG("mtd_spi_nor_init: -> spi: %lx, cs: %lx, opcodes: %p\n",
(unsigned long)dev->params->spi, (unsigned long)dev->params->cs, (void *)dev->params->opcode);
(unsigned long)_get_spi(dev), (unsigned long)dev->params->cs, (void *)dev->params->opcode);
if (dev->params->addr_width == 0) {
return -EINVAL;
@ -389,7 +394,7 @@ static int mtd_spi_nor_init(mtd_dev_t *mtd)
/* CS */
DEBUG("mtd_spi_nor_init: CS init\n");
spi_init_cs(dev->params->spi, dev->params->cs);
spi_init_cs(_get_spi(dev), dev->params->cs);
/* power up the MTD device*/
DEBUG("mtd_spi_nor_init: power up MTD device");