flash_v2: packages/devs/flash/synthv2/current/src/synth.c annotate

annotate packages/devs/flash/synthv2/current/src/synth.c @ 1763:42c8ea63b78d

Eliminate hwr_map_error() from the V2 driver interface, it no longer serves any useful purpose

author	bartv
date	Mon, 29 Nov 2004 14:49:20 +0000
parents	9c1d9e5039c2
children	96ec7e534d98

rev	line source
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	1 //==========================================================================
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	2 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	3 // synth.c
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	4 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	5 // Flash programming
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	6 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	7 //==========================================================================
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	8 //####ECOSGPLCOPYRIGHTBEGIN####
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	9 // -------------------------------------------
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	10 // This file is part of eCos, the Embedded Configurable Operating System.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	12 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	13 // eCos is free software; you can redistribute it and/or modify it under
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	14 // the terms of the GNU General Public License as published by the Free
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	15 // Software Foundation; either version 2 or (at your option) any later version.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	16 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	20 // for more details.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	21 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	22 // You should have received a copy of the GNU General Public License along
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	23 // with eCos; if not, write to the Free Software Foundation, Inc.,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	25 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	26 // As a special exception, if other files instantiate templates or use macros
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	27 // or inline functions from this file, or you compile this file and link it
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	28 // with other works to produce a work based on this file, this file does not
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	29 // by itself cause the resulting work to be covered by the GNU General Public
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	30 // License. However the source code for this file must still be made available
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	31 // in accordance with section (3) of the GNU General Public License.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	32 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	33 // This exception does not invalidate any other reasons why a work based on
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	34 // this file might be covered by the GNU General Public License.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	35 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	37 // at http://sources.redhat.com/ecos/ecos-license/
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	38 // -------------------------------------------
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	39 //####ECOSGPLCOPYRIGHTEND####
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	40 //==========================================================================
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	41 //#####DESCRIPTIONBEGIN####
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	42 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	43 // Author(s): andrew.lunn@ascom.ch
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	44 // Contributors: jlarmour
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	45 // Date: 2001-10-30
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	46 // Purpose:
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	47 // Description:
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	48 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	49 //####DESCRIPTIONEND####
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	50 //
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	51 //==========================================================================
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	52
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	53 #include <pkgconf/devs_flash_synth_v2.h>
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	54
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	55 #include <cyg/hal/hal_io.h>
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	56 #include <cyg/infra/cyg_ass.h>
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	57 #include <string.h>
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	58
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	59 #define _FLASH_PRIVATE_
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	60 #include <cyg/io/flash.h>
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	61 #include <cyg/flash/synth.h>
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	62
1724 a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	63 #ifndef MIN
a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	64 #define MIN(x,y) ((x)<(y) ? (x) : (y))
a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	65 #endif
a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	66
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	67 /* Helper function. The Linux system call cannot pass 6 parameters. Instead
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	68 a structure is filled in and passed as one parameter */
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	69 static int
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	70 cyg_hal_sys_do_mmap(void *addr, unsigned long length, unsigned long prot,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	71 unsigned long flags, unsigned long fd, unsigned long off)
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	72 {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	73
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	74 struct cyg_hal_sys_mmap_args args;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	75
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	76 args.addr = (unsigned long) addr;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	77 args.len = length;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	78 args.prot = prot = prot;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	79 args.flags = flags;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	80 args.fd = fd;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	81 args.offset = off;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	82
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	83 return (cyg_hal_sys_mmap(&args));
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	84 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	85
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	86 static int
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	87 synth_flash_init(struct cyg_flash_dev *dev)
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	88 {
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	89 struct cyg_flash_synth_priv priv = (struct cyg_flash_synth_priv)dev->priv;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	90 cyg_flashaddr_t base;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	91 int flags=CYG_HAL_SYS_MAP_SHARED;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	92
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	93 priv->flashfd =
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	94 cyg_hal_sys_open(priv->filename,
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	95 CYG_HAL_SYS_O_RDWR,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	96 CYG_HAL_SYS_S_IRWXU\|CYG_HAL_SYS_S_IRWXG\|
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	97 CYG_HAL_SYS_S_IRWXO);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	98 if (priv->flashfd == -ENOENT) {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	99 long w, bytesleft;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	100 char buf[128];
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	101
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	102 priv->flashfd = cyg_hal_sys_open(
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	103 priv->filename,
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	104 CYG_HAL_SYS_O_RDWR\|CYG_HAL_SYS_O_CREAT,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	105 CYG_HAL_SYS_S_IRWXU\|CYG_HAL_SYS_S_IRWXG\|CYG_HAL_SYS_S_IRWXO);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	106 CYG_ASSERT( priv->flashfd >= 0,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	107 "Opening of the file for the synth flash failed!");
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	108 // fill with 0xff
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	109 memset( buf, 0xff, sizeof(buf) );
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	110 bytesleft = priv->block_size * priv->blocks +
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	111 priv->boot_block_size * priv->boot_blocks;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	112
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	113 while (bytesleft > 0) {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	114 int bytesneeded;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	115 bytesneeded = bytesleft < sizeof(buf) ?
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	116 bytesleft : sizeof(buf);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	117
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	118 w = cyg_hal_sys_write( priv->flashfd, buf,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	119 bytesneeded );
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	120 CYG_ASSERT(w == bytesneeded,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	121 "initialization of flash file failed");
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	122 bytesleft -= bytesneeded;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	123 } // while
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	124 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	125 CYG_ASSERT( priv->flashfd >= 0,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	126 "Opening of the file for the synth flash failed!");
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	127 if ( priv->flashfd <= 0 ) {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	128 return CYG_FLASH_ERR_HWR;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	129 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	130
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	131 if (dev->start != 0) {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	132 flags \|= CYG_HAL_SYS_MAP_FIXED;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	133 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	134 base = (cyg_flashaddr_t)cyg_hal_sys_do_mmap(
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	135 (void *)dev->start,
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	136 priv->blocks * priv->block_size +
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	137 priv->boot_block_size * priv->boot_blocks,
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	138 CYG_HAL_SYS_PROT_READ,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	139 flags,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	140 priv->flashfd,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	141 0l);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	142 CYG_ASSERT( (int) base > 0, "mmap of flash file failed!" );
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	143 if (base <= 0) {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	144 return CYG_FLASH_ERR_HWR;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	145 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	146 dev->start = base;
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	147 dev->end = base + (priv->blocks * priv->block_size) +
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	148 (priv->boot_blocks * priv->boot_block_size) - 1;
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	149 if (priv->boot_blocks) {
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	150 if (priv->boot_block_bottom) {
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	151 priv->block_info[0].block_size = priv->boot_block_size;
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	152 priv->block_info[0].blocks = priv->boot_blocks;
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	153 priv->block_info[1].block_size = priv->block_size;
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	154 priv->block_info[1].blocks = priv->blocks;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	155 } else {
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	156 priv->block_info[0].block_size = priv->block_size;
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	157 priv->block_info[0].blocks = priv->blocks;
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	158 priv->block_info[1].block_size = priv->boot_block_size;
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	159 priv->block_info[1].blocks = priv->boot_blocks;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	160 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	161 dev->num_block_infos = 2;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	162 } else {
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	163 priv->block_info[0].block_size = priv->block_size;
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	164 priv->block_info[0].blocks = priv->blocks;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	165 dev->num_block_infos = 1;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	166 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	167 dev->block_info = &priv->block_info[0];
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	168
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	169 return CYG_FLASH_ERR_OK;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	170 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	171
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	172 /* This helps speed up the erase. */
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	173 static char empty[4096];
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	174 static cyg_bool empty_inited = false;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	175
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	176 // Return the size of the block which is at the given address.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	177 // __inline__ so that we know it will be in RAM, not ROM.
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	178 static __inline__ size_t
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	179 flash_block_size(struct cyg_flash_dev *dev, const cyg_flashaddr_t addr)
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	180 {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	181 int i;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	182 size_t offset;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	183
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	184
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	185 CYG_ASSERT((addr >= dev->start) && (addr <= dev->end), "Not inside device");
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	186
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	187 offset = addr - dev->start;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	188 for (i=0; i < dev->num_block_infos; i++) {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	189 if (offset < (dev->block_info[i].blocks * dev->block_info[i].block_size))
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	190 return dev->block_info[i].block_size;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	191 offset = offset -
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	192 (dev->block_info[i].blocks * dev->block_info[i].block_size);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	193 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	194 CYG_FAIL("Programming error");
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	195 return 0;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	196 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	197
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	198 static int
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	199 synth_flash_erase_block(struct cyg_flash_dev *dev,
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	200 cyg_flashaddr_t block_base)
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	201 {
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	202 const struct cyg_flash_synth_priv *priv = dev->priv;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	203 int offset = (int)block_base;
1724 a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	204 size_t remaining;
a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	205 int write_size;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	206
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	207 offset -= dev->start;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	208
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	209 cyg_hal_sys_lseek(priv->flashfd, offset,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	210 CYG_HAL_SYS_SEEK_SET);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	211
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	212 if (!empty_inited) {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	213 memset(empty, 0xff, sizeof(empty));
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	214 empty_inited = true;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	215 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	216
1724 a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	217 remaining = flash_block_size(dev, block_base);
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	218
1724 a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	219 while (remaining) {
a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	220 write_size = MIN(remaining, sizeof(empty));
a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	221 cyg_hal_sys_write(priv->flashfd, empty, write_size);
a24dbf2587a3 * src/flash_synth.c: Allow the use of arbitary sized block. asl parents: 1702 diff changeset	222 remaining -= write_size;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	223 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	224 return CYG_FLASH_ERR_OK;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	225 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	226
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	227 static int
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	228 synth_flash_program (struct cyg_flash_dev *dev,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	229 cyg_flashaddr_t base,
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	230 const void* data, size_t len)
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	231 {
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	232 const struct cyg_flash_synth_priv *priv = dev->priv;
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	233 int offset = base;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	234 offset -= dev->start;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	235
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	236 cyg_hal_sys_lseek(priv->flashfd, offset, CYG_HAL_SYS_SEEK_SET);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	237 cyg_hal_sys_write(priv->flashfd, data, len);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	238
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	239 return CYG_FLASH_ERR_OK;
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	240 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	241
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	242 #define QUERY "Linux Synthetic Flash"
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	243
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	244 static size_t
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	245 synth_flash_query(struct cyg_flash_dev dev, void data,
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	246 size_t len)
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	247 {
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	248 memcpy(data,QUERY,sizeof(QUERY));
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	249 return sizeof(QUERY);
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	250 }
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	251
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	252 const CYG_FLASH_FUNS(cyg_flash_synth_funs,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	253 synth_flash_init,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	254 synth_flash_query,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	255 synth_flash_erase_block,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	256 synth_flash_program,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	257 NULL, // read
1762 9c1d9e5039c2 Move dummy init/query/lock/unlock functions to the generic flash code, bartv parents: 1756 diff changeset	258 cyg_flash_devfn_lock_nop,
9c1d9e5039c2 Move dummy init/query/lock/unlock functions to the generic flash code, bartv parents: 1756 diff changeset	259 cyg_flash_devfn_unlock_nop);
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	260
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	261 static struct cyg_flash_synth_priv synth_flash_priv = {
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	262 .block_size = CYGNUM_FLASH_SYNTH_V2_BLOCKSIZE,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	263 .blocks = CYGNUM_FLASH_SYNTH_V2_NUMBLOCKS,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	264 .boot_block_size = CYGNUM_FLASH_SYNTH_V2_BOOT_BLOCKSIZE,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	265 .boot_blocks = CYGNUM_FLASH_SYNTH_V2_NUMBOOT_BLOCKS,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	266 .boot_block_bottom = CYGNUM_FLASH_SYNTH_V2_BOOT_BLOCK_BOTTOM,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	267 .filename = CYGDAT_FLASH_SYNTH_V2_FILENAME,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	268 .flashfd = -1
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	269 };
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	270
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	271 CYG_FLASH_DRIVER(cyg_flash_synth_flashdev,
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	272 &cyg_flash_synth_funs,
1756 2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	273 0, // flags
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	274 CYGMEM_FLASH_SYNTH_V2_BASE, // Start, if 0 will be updated by init
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	275 0, // end, filled in by init
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	276 0, // number of block_info's, filled in by init
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	277 synth_flash_priv.block_info,
2f4e31c45a45 Update following changes to the flash device driver interface bartv parents: 1728 diff changeset	278 &synth_flash_priv);
1702 0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	279
0673c75f3a08 Import the first version of the synth flash driver which uses the V2 API. asl parents: diff changeset	280 // EOF synth.c

Mercurial > flash_v2

annotate packages/devs/flash/synthv2/current/src/synth.c @ 1763:42c8ea63b78d