#if M25_MAX_CHIPS > 1
static uint8_t ao_m25_size[M25_MAX_CHIPS]; /* number of sectors in each chip */
-static uint8_t ao_m25_pin[M25_MAX_CHIPS]; /* chip select pin for each chip */
+static ao_port_t ao_m25_pin[M25_MAX_CHIPS]; /* chip select pin for each chip */
static uint8_t ao_m25_numchips; /* number of chips detected */
#endif
static uint8_t ao_m25_total; /* total sectors available */
-static uint8_t ao_m25_wip; /* write in progress */
+static ao_port_t ao_m25_wip; /* write in progress */
static __xdata uint8_t ao_m25_mutex;
* Block until the specified chip is done writing
*/
static void
-ao_m25_wait_wip(uint8_t cs)
+ao_m25_wait_wip(ao_port_t cs)
{
if (ao_m25_wip & cs) {
M25_SELECT(cs);
* so that future operations will block until the WIP bit goes off
*/
static void
-ao_m25_write_enable(uint8_t cs)
+ao_m25_write_enable(ao_port_t cs)
{
M25_SELECT(cs);
ao_m25_instruction[0] = M25_WREN;
* Returns the number of 64kB sectors
*/
static uint8_t
-ao_m25_read_capacity(uint8_t cs)
+ao_m25_read_capacity(ao_port_t cs)
{
uint8_t capacity;
M25_SELECT(cs);
return 1 << (capacity - 0x10);
}
-static uint8_t
+static ao_port_t
ao_m25_set_address(uint32_t pos)
{
- uint8_t chip;
+ ao_port_t mask;
#if M25_MAX_CHIPS > 1
uint8_t size;
+ uint8_t chip;
for (chip = 0; chip < ao_m25_numchips; chip++) {
size = ao_m25_size[chip];
if (chip == ao_m25_numchips)
return 0xff;
- chip = ao_m25_pin[chip];
+ mask = ao_m25_pin[chip];
#else
- chip = AO_M25_SPI_CS_MASK;
+ mask = AO_M25_SPI_CS_MASK;
#endif
- ao_m25_wait_wip(chip);
+ ao_m25_wait_wip(mask);
ao_m25_instruction[1] = pos >> 16;
ao_m25_instruction[2] = pos >> 8;
ao_m25_instruction[3] = pos;
- return chip;
+ return mask;
}
/*
uint8_t
ao_storage_erase(uint32_t pos) __reentrant
{
- uint8_t cs;
+ ao_port_t cs;
if (pos >= ao_storage_total || pos + ao_storage_block > ao_storage_total)
return 0;
cs = ao_m25_set_address(pos);
- ao_m25_wait_wip(cs);
ao_m25_write_enable(cs);
ao_m25_instruction[0] = M25_SE;
uint8_t
ao_storage_device_write(uint32_t pos, __xdata void *d, uint16_t len) __reentrant
{
- uint8_t cs;
+ ao_port_t cs;
if (pos >= ao_storage_total || pos + len > ao_storage_total)
return 0;
uint8_t
ao_storage_device_read(uint32_t pos, __xdata void *d, uint16_t len) __reentrant
{
- uint8_t cs;
+ ao_port_t cs;
if (pos >= ao_storage_total || pos + len > ao_storage_total)
return 0;
ao_storage_device_info(void) __reentrant
{
#if M25_DEBUG
- uint8_t cs;
+ ao_port_t cs;
#endif
#if M25_MAX_CHIPS > 1
uint8_t chip;