*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
#include "ao_at45db161d.h"
/* Total bytes of available storage */
-__pdata uint32_t ao_storage_total;
+uint32_t ao_storage_total;
/* Block size - device is erased in these units. At least 256 bytes */
-__pdata uint32_t ao_storage_block;
+uint32_t ao_storage_block;
/* Byte offset of config block. Will be ao_storage_block bytes long */
-__pdata uint32_t ao_storage_config;
+uint32_t ao_storage_config;
/* Storage unit size - device reads and writes must be within blocks of this size. Usually 256 bytes. */
-__pdata uint16_t ao_storage_unit;
+uint16_t ao_storage_unit;
#define FLASH_CS P1_1
#define FLASH_CS_INDEX 1
#define FLASH_BLOCK_SIZE_MAX 512
-__xdata uint8_t ao_flash_mutex;
+uint8_t ao_flash_mutex;
#define ao_flash_delay() do { \
_asm nop _endasm; \
_asm nop _endasm; \
} while(0)
-#define ao_flash_cs_low() ao_spi_get_bit(FLASH_CS)
+#define ao_flash_cs_low() ao_spi_get_bit(FLASH_CS_PORT, FLASH_CS_PIN, FLASH_CS, AO_FLASH_SPI_BUS, AO_SPI_SPEED_FAST)
-#define ao_flash_cs_high() ao_spi_put_bit(FLASH_CS)
+#define ao_flash_cs_high() ao_spi_put_bit(FLASH_CS_PORT, FLASH_CS_PIN, FLASH_CS, AO_FLASH_SPI_BUS)
struct ao_flash_instruction {
uint8_t instruction;
uint8_t address[3];
-} __xdata ao_flash_instruction;
+} ao_flash_instruction;
static void
ao_flash_set_pagesize_512(void)
ao_flash_instruction.address[0] = FLASH_SET_512_BYTE_0;
ao_flash_instruction.address[1] = FLASH_SET_512_BYTE_1;
ao_flash_instruction.address[2] = FLASH_SET_512_BYTE_2;
- ao_spi_send(&ao_flash_instruction, 4);
+ ao_spi_send(&ao_flash_instruction, 4, AO_FLASH_SPI_BUS);
ao_flash_cs_high();
}
{
ao_flash_cs_low();
ao_flash_instruction.instruction = FLASH_READ_STATUS;
- ao_spi_send(&ao_flash_instruction, 1);
- ao_spi_recv(&ao_flash_instruction, 1);
+ ao_spi_send(&ao_flash_instruction, 1, AO_FLASH_SPI_BUS);
+ ao_spi_recv(&ao_flash_instruction, 1, AO_FLASH_SPI_BUS);
ao_flash_cs_high();
return ao_flash_instruction.instruction;
}
#define FLASH_BLOCK_NONE 0xffff
-static __xdata uint8_t ao_flash_data[FLASH_BLOCK_SIZE_MAX];
-static __pdata uint16_t ao_flash_block = FLASH_BLOCK_NONE;
-static __pdata uint8_t ao_flash_block_dirty;
-static __pdata uint8_t ao_flash_write_pending;
-static __pdata uint8_t ao_flash_setup_done;
-static __pdata uint8_t ao_flash_block_shift;
-static __pdata uint16_t ao_flash_block_size;
-static __pdata uint16_t ao_flash_block_mask;
+static uint8_t ao_flash_data[FLASH_BLOCK_SIZE_MAX];
+static uint16_t ao_flash_block = FLASH_BLOCK_NONE;
+static uint8_t ao_flash_block_dirty;
+static uint8_t ao_flash_write_pending;
+static uint8_t ao_flash_setup_done;
+static uint8_t ao_flash_block_shift;
+static uint16_t ao_flash_block_size;
+static uint16_t ao_flash_block_mask;
void
-ao_storage_setup(void) __reentrant
+ao_storage_setup(void)
{
uint8_t status;
ao_flash_instruction.address[0] = ao_flash_block >> (16 - ao_flash_block_shift);
ao_flash_instruction.address[1] = ao_flash_block << (ao_flash_block_shift - 8);
ao_flash_instruction.address[2] = 0;
- ao_spi_send(&ao_flash_instruction, 4);
- ao_spi_send(ao_flash_data, ao_storage_block);
+ ao_spi_send(&ao_flash_instruction, 4, AO_FLASH_SPI_BUS);
+ ao_spi_send(ao_flash_data, ao_storage_block, AO_FLASH_SPI_BUS);
ao_flash_cs_high();
ao_flash_write_pending = 1;
}
ao_flash_instruction.address[0] = ao_flash_block >> (16 - ao_flash_block_shift);
ao_flash_instruction.address[1] = ao_flash_block << (ao_flash_block_shift - 8);
ao_flash_instruction.address[2] = 0;
- ao_spi_send(&ao_flash_instruction, 4);
- ao_spi_recv(ao_flash_data, ao_flash_block_size);
+ ao_spi_send(&ao_flash_instruction, 4, AO_FLASH_SPI_BUS);
+ ao_spi_recv(ao_flash_data, ao_flash_block_size, AO_FLASH_SPI_BUS);
ao_flash_cs_high();
}
}
uint8_t
-ao_storage_device_write(uint32_t pos, __xdata void *buf, uint16_t len) __reentrant
+ao_storage_device_write(uint32_t pos, void *buf, uint16_t len)
{
uint16_t block = (uint16_t) (pos >> ao_flash_block_shift);
}
uint8_t
-ao_storage_device_read(uint32_t pos, __xdata void *buf, uint16_t len) __reentrant
+ao_storage_device_read(uint32_t pos, void *buf, uint16_t len)
{
uint16_t block = (uint16_t) (pos >> ao_flash_block_shift);
}
void
-ao_storage_flush(void) __reentrant
+ao_storage_flush(void)
{
ao_mutex_get(&ao_flash_mutex); {
ao_flash_flush_internal();
}
uint8_t
-ao_storage_erase(uint32_t pos) __reentrant
+ao_storage_erase(uint32_t pos)
{
ao_mutex_get(&ao_flash_mutex); {
ao_flash_flush_internal();
}
void
-ao_storage_device_info(void) __reentrant
+ao_storage_device_info(void)
{
uint8_t status;