X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fdrivers%2Fao_m25.c;h=550c9535f2735837d566d09ff131f6bbe73bedb6;hb=202166275ba5220db54f63dcd9366e9115d09c0d;hp=518765b2cd86903211b68af3e1fb8ac9e6bccdba;hpb=9bc701ce1132f04ec90ef22e6a7a90c67918737b;p=fw%2Faltos

diff --git a/src/drivers/ao_m25.c b/src/drivers/ao_m25.c
index 518765b2..550c9535 100644
--- a/src/drivers/ao_m25.c
+++ b/src/drivers/ao_m25.c
@@ -3,7 +3,8 @@
  *
  * 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
@@ -18,17 +19,18 @@
 #include "ao.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 M25_DEBUG	0
 /*
  * Each flash chip is arranged in 64kB sectors; the
  * chip cannot erase in units smaller than that.
@@ -80,14 +82,14 @@ __pdata uint16_t	ao_storage_unit;
  */
 
 #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 uint32_t ao_m25_size[M25_MAX_CHIPS];	/* number of sectors in 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 uint32_t ao_m25_total;			/* total sectors available */
+static ao_port_t ao_m25_wip;			/* write in progress */
 
-static __xdata uint8_t ao_m25_mutex;
+static uint8_t ao_m25_mutex;
 
 /*
  * This little array is abused to send and receive data. A particular
@@ -97,33 +99,21 @@ static __xdata uint8_t ao_m25_mutex;
  * of which touch those last three bytes.
  */
 
-static __xdata uint8_t	ao_m25_instruction[4];
+static uint8_t	ao_m25_instruction[4];
 
-#if HAS_BOOT_RADIO
-/* Kick any radio listeners off so the flash can be written */
-extern uint8_t ao_radio_in_recv;
-
-static void ao_boot_radio(void) {
-	if (ao_radio_in_recv)
-		ao_radio_recv_abort();
-}
-#else
-#define ao_boot_radio()
-#endif
-
-#define M25_SELECT(cs)		do { ao_boot_radio(); ao_spi_get_mask(AO_M25_SPI_CS_PORT,cs,AO_M25_SPI_BUS, AO_SPI_SPEED_FAST); } while (0)
+#define M25_SELECT(cs)		ao_spi_get_mask(AO_M25_SPI_CS_PORT,cs,AO_M25_SPI_BUS, AO_SPI_SPEED_FAST)
 #define M25_DESELECT(cs)	ao_spi_put_mask(AO_M25_SPI_CS_PORT,cs,AO_M25_SPI_BUS)
 
 #define M25_BLOCK_SHIFT			16
 #define M25_BLOCK			65536L
-#define M25_POS_TO_SECTOR(pos)		((uint8_t) ((pos) >> M25_BLOCK_SHIFT))
+#define M25_POS_TO_SECTOR(pos)		((uint32_t) ((pos) >> M25_BLOCK_SHIFT))
 #define M25_SECTOR_TO_POS(sector)	(((uint32_t) (sector)) << M25_BLOCK_SHIFT)
 
 /*
  * 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);
@@ -143,7 +133,7 @@ ao_m25_wait_wip(uint8_t 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;
@@ -156,8 +146,8 @@ ao_m25_write_enable(uint8_t cs)
 /*
  * Returns the number of 64kB sectors
  */
-static uint8_t
-ao_m25_read_capacity(uint8_t cs)
+static uint32_t
+ao_m25_read_capacity(ao_port_t cs)
 {
 	uint8_t	capacity;
 	M25_SELECT(cs);
@@ -177,12 +167,13 @@ ao_m25_read_capacity(uint8_t 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;
+	uint32_t	size;
+	uint8_t		chip;
 
 	for (chip = 0; chip < ao_m25_numchips; chip++) {
 		size = ao_m25_size[chip];
@@ -193,16 +184,16 @@ ao_m25_set_address(uint32_t pos)
 	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;
 }
 
 /*
@@ -213,7 +204,8 @@ static uint8_t
 ao_m25_scan(void)
 {
 #if M25_MAX_CHIPS > 1
-	uint8_t	pin, size;
+	uint8_t	pin;
+	uint32_t size;
 #endif
 
 	if (ao_m25_total)
@@ -248,9 +240,9 @@ ao_m25_scan(void)
  * Erase the specified sector
  */
 uint8_t
-ao_storage_erase(uint32_t pos) __reentrant
+ao_storage_device_erase(uint32_t pos)
 {
-	uint8_t	cs;
+	ao_port_t	cs;
 
 	if (pos >= ao_storage_total || pos + ao_storage_block > ao_storage_total)
 		return 0;
@@ -260,7 +252,6 @@ ao_storage_erase(uint32_t pos) __reentrant
 
 	cs = ao_m25_set_address(pos);
 
-	ao_m25_wait_wip(cs);
 	ao_m25_write_enable(cs);
 
 	ao_m25_instruction[0] = M25_SE;
@@ -277,9 +268,9 @@ ao_storage_erase(uint32_t pos) __reentrant
  * Write to flash
  */
 uint8_t
-ao_storage_device_write(uint32_t pos, __xdata void *d, uint16_t len) __reentrant
+ao_storage_device_write(uint32_t pos, void *d, uint16_t len) 
 {
-	uint8_t	cs;
+	ao_port_t	cs;
 
 	if (pos >= ao_storage_total || pos + len > ao_storage_total)
 		return 0;
@@ -304,9 +295,9 @@ ao_storage_device_write(uint32_t pos, __xdata void *d, uint16_t len) __reentrant
  * Read from flash
  */
 uint8_t
-ao_storage_device_read(uint32_t pos, __xdata void *d, uint16_t len) __reentrant
+ao_storage_device_read(uint32_t pos, void *d, uint16_t len) 
 {
-	uint8_t	cs;
+	ao_port_t	cs;
 
 	if (pos >= ao_storage_total || pos + len > ao_storage_total)
 		return 0;
@@ -327,7 +318,7 @@ ao_storage_device_read(uint32_t pos, __xdata void *d, uint16_t len) __reentrant
 }
 
 void
-ao_storage_flush(void) __reentrant
+ao_storage_flush(void) 
 {
 }
 
@@ -340,9 +331,11 @@ ao_storage_setup(void)
 }
 
 void
-ao_storage_device_info(void) __reentrant
+ao_storage_device_info(void) 
 {
-	uint8_t	cs;
+#if M25_DEBUG
+	ao_port_t	cs;
+#endif
 #if M25_MAX_CHIPS > 1
 	uint8_t chip;
 #endif
@@ -352,14 +345,15 @@ ao_storage_device_info(void) __reentrant
 	ao_mutex_put(&ao_m25_mutex);
 
 #if M25_MAX_CHIPS > 1
-	printf ("Detected chips %d size %d\n", ao_m25_numchips, ao_m25_total);
+	printf ("Detected chips %d size %ld\n", ao_m25_numchips, ao_m25_total);
 	for (chip = 0; chip < ao_m25_numchips; chip++)
 		printf ("Flash chip %d select %02x size %d\n",
 			chip, ao_m25_pin[chip], ao_m25_size[chip]);
 #else
-	printf ("Detected chips 1 size %d\n", ao_m25_total);
+	printf ("Detected chips 1 size %ld\n", ao_m25_total);
 #endif
 
+#if M25_DEBUG
 	printf ("Available chips:\n");
 	for (cs = 1; cs != 0; cs <<= 1) {
 		if ((AO_M25_SPI_CS_MASK & cs) == 0)
@@ -380,6 +374,7 @@ ao_storage_device_info(void) __reentrant
 			ao_m25_instruction[M25_UID_OFFSET]);
 		ao_mutex_put(&ao_m25_mutex);
 	}
+#endif
 }
 
 void