diff --git a/firmware/common/w25q80bv.c b/firmware/common/w25q80bv.c index 2b391d9d..f49ffe3f 100644 --- a/firmware/common/w25q80bv.c +++ b/firmware/common/w25q80bv.c @@ -243,3 +243,25 @@ void w25q80bv_program(uint32_t addr, uint32_t len, const uint8_t* data) w25q80bv_page_program(addr, len, data); } } + +void w25q80bv_read(uint32_t addr, uint32_t len, uint8_t* const data) +{ + uint32_t i; + + /* do nothing if we would overflow the flash */ + if ((len > W25Q80BV_NUM_BYTES) || (addr > W25Q80BV_NUM_BYTES) + || ((addr + len) > W25Q80BV_NUM_BYTES)) + return; + + w25q80bv_wait_while_busy(); + + gpio_clear(PORT_SSP0_SSEL, PIN_SSP0_SSEL); + ssp_transfer(SSP0_NUM, W25Q80BV_FAST_READ); + ssp_transfer(SSP0_NUM, (addr >> 16) & 0xFF); + ssp_transfer(SSP0_NUM, (addr >> 8) & 0xFF); + ssp_transfer(SSP0_NUM, (addr >> 0) & 0xFF); + ssp_transfer(SSP0_NUM, 0xFF); + for (i = 0; i < len; i++) + data[i] = ssp_transfer(SSP0_NUM, 0xFF); + gpio_set(PORT_SSP0_SSEL, PIN_SSP0_SSEL); +} diff --git a/firmware/common/w25q80bv.h b/firmware/common/w25q80bv.h index b11a466a..5eda749d 100644 --- a/firmware/common/w25q80bv.h +++ b/firmware/common/w25q80bv.h @@ -27,6 +27,8 @@ #define W25Q80BV_NUM_PAGES 4096U #define W25Q80BV_NUM_BYTES 1048576U +#define W25Q80BV_READ_DATA 0x03 +#define W25Q80BV_FAST_READ 0x0b #define W25Q80BV_WRITE_ENABLE 0x06 #define W25Q80BV_CHIP_ERASE 0xC7 #define W25Q80BV_READ_STATUS1 0x05 @@ -51,5 +53,6 @@ void w25q80bv_chip_erase(void); void w25q80bv_program(uint32_t addr, uint32_t len, const uint8_t* data); uint8_t w25q80bv_get_device_id(void); void w25q80bv_get_unique_id(w25q80bv_unique_id_t* unique_id); +void w25q80bv_read(uint32_t addr, uint32_t len, uint8_t* const data); #endif//__W25Q80BV_H__ diff --git a/firmware/hackrf_usb/hackrf_usb.c b/firmware/hackrf_usb/hackrf_usb.c index c5ccb6ad..5f793966 100644 --- a/firmware/hackrf_usb/hackrf_usb.c +++ b/firmware/hackrf_usb/hackrf_usb.c @@ -47,6 +47,7 @@ #include "sgpio_isr.h" #include "usb_bulk_buffer.h" #include "si5351c.h" +#include "w25q80bv.h" static volatile transceiver_mode_t _transceiver_mode = TRANSCEIVER_MODE_OFF; @@ -224,6 +225,9 @@ int main(void) { #endif cpu_clock_init(); + /* Code is not running from SPI flash, initialize for flash read/write over USB */ + w25q80bv_setup(); + usb_set_descriptor_by_serial_number(); usb_set_configuration_changed_cb(usb_configuration_changed); diff --git a/firmware/hackrf_usb/usb_api_spiflash.c b/firmware/hackrf_usb/usb_api_spiflash.c index 93c12065..96072394 100644 --- a/firmware/hackrf_usb/usb_api_spiflash.c +++ b/firmware/hackrf_usb/usb_api_spiflash.c @@ -33,14 +33,10 @@ uint8_t spiflash_buffer[W25Q80BV_PAGE_LEN]; usb_request_status_t usb_vendor_request_erase_spiflash( usb_endpoint_t* const endpoint, const usb_transfer_stage_t stage) { - //FIXME This should refuse to run if executing from SPI flash. - if (stage == USB_TRANSFER_STAGE_SETUP) { - w25q80bv_setup(); /* only chip erase is implemented */ w25q80bv_chip_erase(); usb_transfer_schedule_ack(endpoint->in); - //FIXME probably should undo w25q80bv_setup() } return USB_REQUEST_STATUS_OK; } @@ -51,8 +47,6 @@ usb_request_status_t usb_vendor_request_write_spiflash( uint32_t addr = 0; uint16_t len = 0; - //FIXME This should refuse to run if executing from SPI flash. - if (stage == USB_TRANSFER_STAGE_SETUP) { addr = (endpoint->setup.value << 16) | endpoint->setup.index; len = endpoint->setup.length; @@ -62,7 +56,6 @@ usb_request_status_t usb_vendor_request_write_spiflash( } else { usb_transfer_schedule_block(endpoint->out, &spiflash_buffer[0], len, NULL, NULL); - w25q80bv_setup(); return USB_REQUEST_STATUS_OK; } } else if (stage == USB_TRANSFER_STAGE_DATA) { @@ -75,7 +68,6 @@ usb_request_status_t usb_vendor_request_write_spiflash( } else { w25q80bv_program(addr, len, &spiflash_buffer[0]); usb_transfer_schedule_ack(endpoint->in); - //FIXME probably should undo w25q80bv_setup() return USB_REQUEST_STATUS_OK; } } else { @@ -86,10 +78,8 @@ usb_request_status_t usb_vendor_request_write_spiflash( usb_request_status_t usb_vendor_request_read_spiflash( usb_endpoint_t* const endpoint, const usb_transfer_stage_t stage) { - uint32_t i; uint32_t addr; uint16_t len; - uint8_t* u8_addr_pt; if (stage == USB_TRANSFER_STAGE_SETUP) { @@ -99,12 +89,7 @@ usb_request_status_t usb_vendor_request_read_spiflash( || ((addr + len) > W25Q80BV_NUM_BYTES)) { return USB_REQUEST_STATUS_STALL; } else { - /* TODO flush SPIFI "cache" before to read the SPIFI memory */ - u8_addr_pt = (uint8_t*)(addr + SPIFI_DATA_UNCACHED_BASE); - for(i=0; iin, &spiflash_buffer[0], len, NULL, NULL); return USB_REQUEST_STATUS_OK;