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ChibiOS
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9451 35acf78f-673a-0410-8e92-d51de3d6d3f4

This commit is contained in:
Giovanni Di Sirio 2016-05-08 13:12:28 +00:00
parent a4e52c4687
commit ceb256ed74
2 changed files with 98 additions and 29 deletions
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109
os/ex/Micron/n25q128.c
View File

@ -35,6 +35,7 @@
#define PAGE_SIZE 256U
#define PAGE_MASK (PAGE_SIZE - 1U)
#define SECTOR_SIZE 4096U
/*===========================================================================*/
/* Driver exported variables. */
@ -44,7 +45,7 @@
/* Driver local variables and types. */
/*===========================================================================*/
static const flash_descriptor_t *get_attributes(void *instance);
static const flash_descriptor_t *get_descriptor(void *instance);
static flash_error_t erase_all(void *instance);
static flash_error_t erase_sectors(void *instance,
flash_sector_t sector,
@ -61,7 +62,7 @@ static flash_error_t read(void *instance, flash_address_t addr,
* @brief Virtual methods table.
*/
static const struct N25Q128DriverVMT n25q128_vmt = {
get_attributes, erase_all, erase_sectors, are_sectors_erased,
get_descriptor, erase_all, erase_sectors, are_sectors_erased,
program, read
};
@ -73,7 +74,7 @@ static flash_descriptor_t descriptor = {
.page_size = 256,
.sectors_count = 4096,
.sectors = NULL,
.sectors_size = 4096,
.sectors_size = SECTOR_SIZE,
.address = 0
};
@ -129,9 +130,10 @@ static flash_error_t flash_poll_status(N25Q128Driver *devp) {
return FLASH_NO_ERROR;
}
static const flash_descriptor_t *get_attributes(void *instance) {
static const flash_descriptor_t *get_descriptor(void *instance) {
N25Q128Driver *devp = (N25Q128Driver *)instance;
osalDbgCheck(instance != NULL);
osalDbgAssert(devp->state == FLASH_READY, "invalid state");
return &descriptor;
@ -140,12 +142,37 @@ static const flash_descriptor_t *get_attributes(void *instance) {
static flash_error_t erase_all(void *instance) {
N25Q128Driver *devp = (N25Q128Driver *)instance;
SPIDriver *spip = devp->config->spip;
flash_error_t err;
osalDbgCheck(instance != NULL);
osalDbgAssert(devp->state == FLASH_READY, "invalid state");
(void)instance;
#if N25Q128_SHARED_SPI == TRUE
spiAcquireBus(spip);
spiStart(spip, devp->config->spicfg);
#endif
devp->state = FLASH_ACTIVE;
return FLASH_NO_ERROR;
/* Enabling write operation.*/
spiSelect(spip);
flash_send_cmd(devp, N25Q128_CMD_WRITE_ENABLE);
spiUnselect(spip);
(void) spiPolledExchange(spip, 0xFF); /* One frame delay.*/
/* Bulk erase command.*/
spiSelect(spip);
flash_send_cmd(devp, N25Q128_CMD_BULK_ERASE);
spiUnselect(spip);
/* Wait for status and check errors.*/
(void) spiPolledExchange(spip, 0xFF); /* One frame delay.*/
err = flash_poll_status(devp);
devp->state = FLASH_READY;
#if N25Q128_SHARED_SPI == TRUE
spiReleaseBus(spip);
#endif
return err;
}
static flash_error_t erase_sectors(void *instance,
@ -153,14 +180,51 @@ static flash_error_t erase_sectors(void *instance,
flash_sector_t n) {
N25Q128Driver *devp = (N25Q128Driver *)instance;
SPIDriver *spip = devp->config->spip;
flash_address_t addr = (flash_address_t)(sector * SECTOR_SIZE);
osalDbgCheck(instance != NULL);
osalDbgCheck(sector + n <= descriptor.sectors_count);
osalDbgAssert(devp->state == FLASH_READY, "invalid state");
(void)instance;
(void)sector;
(void)n;
#if N25Q128_SHARED_SPI == TRUE
spiAcquireBus(spip);
spiStart(spip, devp->config->spicfg);
#endif
devp->state = FLASH_ACTIVE;
flash_error_t err;
return FLASH_NO_ERROR;
/* Sub-sectors erased one by one, a possible optimization could be to
erase whole sectors where possible.*/
while (n > 0) {
/* Enabling write operation.*/
spiSelect(spip);
flash_send_cmd(devp, N25Q128_CMD_WRITE_ENABLE);
spiUnselect(spip);
(void) spiPolledExchange(spip, 0xFF); /* One frame delay.*/
/* Sub-sector erase command.*/
spiSelect(spip);
flash_send_cmd_addr(devp, N25Q128_CMD_SUBSECTOR_ERASE, addr);
spiUnselect(spip);
/* Wait for status and check errors.*/
(void) spiPolledExchange(spip, 0xFF); /* One frame delay.*/
err = flash_poll_status(devp);
if (err != FLASH_NO_ERROR) {
break;
}
n--;
addr += SECTOR_SIZE;
}
devp->state = FLASH_READY;
#if N25Q128_SHARED_SPI == TRUE
spiReleaseBus(spip);
#endif
return err;
}
static flash_error_t are_sectors_erased(void *instance,
@ -169,11 +233,11 @@ static flash_error_t are_sectors_erased(void *instance,
N25Q128Driver *devp = (N25Q128Driver *)instance;
SPIDriver *spip = devp->config->spip;
osalDbgCheck(instance != NULL);
osalDbgCheck(sector + n <= descriptor.sectors_count);
osalDbgAssert(devp->state == FLASH_READY, "invalid state");
(void)instance;
(void)sector;
(void)n;
(void)spip;
return FLASH_NO_ERROR;
}
@ -184,6 +248,9 @@ static flash_error_t program(void *instance, flash_address_t addr,
SPIDriver *spip = devp->config->spip;
flash_error_t err;
osalDbgCheck((instance != NULL) && (pp != NULL));
osalDbgCheck((size_t)addr + n <= (size_t)descriptor.sectors_count *
(size_t)descriptor.sectors_size);
osalDbgAssert(devp->state == FLASH_READY, "invalid state");
#if N25Q128_SHARED_SPI == TRUE
@ -212,9 +279,9 @@ static flash_error_t program(void *instance, flash_address_t addr,
flash_send_cmd_addr(devp, N25Q128_CMD_PAGE_PROGRAM, addr);
spiSend(spip, chunk, pp);
spiUnselect(spip);
(void) spiPolledExchange(spip, 0xFF); /* One frame delay.*/
/* Wait for status and check errors.*/
(void) spiPolledExchange(spip, 0xFF); /* One frame delay.*/
err = flash_poll_status(devp);
if (err != FLASH_NO_ERROR) {
break;
@ -239,6 +306,9 @@ static flash_error_t read(void *instance, flash_address_t addr,
N25Q128Driver *devp = (N25Q128Driver *)instance;
SPIDriver *spip = devp->config->spip;
osalDbgCheck((instance != NULL) && (rp != NULL));
osalDbgCheck((size_t)addr + n <= (size_t)descriptor.sectors_count *
(size_t)descriptor.sectors_size);
osalDbgAssert(devp->state == FLASH_READY, "invalid state");
#if N25Q128_SHARED_SPI == TRUE
@ -273,6 +343,8 @@ static flash_error_t read(void *instance, flash_address_t addr,
*/
void n15q128ObjectInit(N25Q128Driver *devp) {
osalDbgCheck(devp != NULL);
devp->vmt_baseflash = &n25q128_vmt;
devp->state = FLASH_STOP;
devp->config = NULL;
@ -288,12 +360,11 @@ void n15q128ObjectInit(N25Q128Driver *devp) {
*/
void n15q128Start(N25Q128Driver *devp, const N25Q128Config *config) {
(void)config;
osalDbgCheck((devp != NULL) && (config != NULL));
osalDbgAssert(devp->state != FLASH_UNINIT, "invalid state");
if (devp->state == FLASH_STOP) {
#if N25Q128_SHARED_SPI == TRUE
#if N25Q128_SHARED_SPI == FALSE
spiStart(devp->config->spip, devp->config->spicfg);
#endif
devp->state = FLASH_READY;
@ -310,6 +381,7 @@ void n15q128Start(N25Q128Driver *devp, const N25Q128Config *config) {
void n15q128Stop(N25Q128Driver *devp) {
SPIDriver *spip = devp->config->spip;
osalDbgCheck(devp != NULL);
osalDbgAssert(devp->state != FLASH_UNINIT, "invalid state");
if (devp->state != FLASH_STOP) {
@ -318,12 +390,11 @@ void n15q128Stop(N25Q128Driver *devp) {
#endif
spiStop(spip);
devp->state = FLASH_STOP;
#if N25Q128_SHARED_SPI == TRUE
spiReleaseBus(spip);
#endif
devp->state = FLASH_STOP;
}
}

18
os/hal/lib/peripherals/flash/hal_flash.h
View File

@ -66,13 +66,11 @@ typedef enum {
*/
typedef enum {
FLASH_NO_ERROR = 0, /* No error. */
FLASH_PARAMETER_ERROR = 1, /* Error in a function parameter. */
FLASH_ADDRESS_ERROR = 2, /* Operation overlaps invalid addresses. */
FLASH_ECC_ERROR = 3, /* ECC error during read operation. */
FLASH_PROGRAM_FAILURE = 4, /* Program operation failed. */
FLASH_ERASE_FAILURE = 5, /* Erase operation failed. */
FLASH_VERIFY_FAILURE = 6, /* Verify operation failed. */
FLASH_HW_FAILURE = 7 /* Controller or communication error. */
FLASH_ECC_ERROR = 1, /* ECC error during read operation. */
FLASH_PROGRAM_FAILURE = 2, /* Program operation failed. */
FLASH_ERASE_FAILURE = 3, /* Erase operation failed. */
FLASH_VERIFY_FAILURE = 4, /* Verify operation failed. */
FLASH_HW_FAILURE = 5 /* Controller or communication error. */
} flash_error_t;
/**
@ -140,7 +138,7 @@ typedef struct {
*/
#define _base_flash_methods_alone \
/* Get flash device attributes.*/ \
const flash_descriptor_t * (*get_attributes)(void *instance); \
const flash_descriptor_t * (*get_descriptor)(void *instance); \
/* Erase whole flash device.*/ \
flash_error_t (*erase_all)(void *instance); \
/* Erase single sector.*/ \
@ -206,8 +204,8 @@ typedef struct {
*
* @api
*/
#define flashGetType(ip) \
(ip)->vmt_baseflash->get_attributes(ip)
#define flashGetDescriptor(ip) \
(ip)->vmt_baseflash->get_descriptor(ip)
/**
* @brief Whole device erase operation.