u-boot/cmd/ide.c
Simon Glass e9be1ee75e dm: ide: Separate the non-command code into its own file
At present the IDE command code includes both the command-processing code
and the core IDE functions and data structures.

Separate the latter into its own file, adding functions as needed to avoid
the command code accessing data structures directly.

With this commit:
- Most CONFIG option are referenced from the non-command code
- The concept of a 'current IDE device' is confined to the command code

This will make it easier to convert this code to driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-05-17 09:54:43 -06:00

171 lines
4 KiB
C

/*
* (C) Copyright 2000-2011
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* IDE support
*/
#include <common.h>
#include <blk.h>
#include <config.h>
#include <watchdog.h>
#include <command.h>
#include <image.h>
#include <asm/byteorder.h>
#include <asm/io.h>
#if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
# include <pcmcia.h>
#endif
#include <ide.h>
#include <ata.h>
#ifdef CONFIG_STATUS_LED
# include <status_led.h>
#endif
/* Current I/O Device */
static int curr_device = -1;
int do_ide(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
int rcode = 0;
switch (argc) {
case 0:
case 1:
return CMD_RET_USAGE;
case 2:
if (strncmp(argv[1], "res", 3) == 0) {
puts("\nReset IDE"
#ifdef CONFIG_IDE_8xx_DIRECT
" on PCMCIA " PCMCIA_SLOT_MSG
#endif
": ");
ide_init();
return 0;
} else if (strncmp(argv[1], "inf", 3) == 0) {
blk_list_devices(IF_TYPE_IDE);
return 0;
} else if (strncmp(argv[1], "dev", 3) == 0) {
if (blk_print_device_num(IF_TYPE_IDE, curr_device)) {
printf("\nno IDE devices available\n");
return CMD_RET_FAILURE;
}
return 0;
} else if (strncmp(argv[1], "part", 4) == 0) {
if (blk_list_part(IF_TYPE_IDE))
printf("\nno IDE devices available\n");
return 1;
}
return CMD_RET_USAGE;
case 3:
if (strncmp(argv[1], "dev", 3) == 0) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
if (!blk_show_device(IF_TYPE_IDE, dev)) {
curr_device = dev;
printf("... is now current device\n");
} else {
return CMD_RET_FAILURE;
}
return 0;
} else if (strncmp(argv[1], "part", 4) == 0) {
int dev = (int)simple_strtoul(argv[2], NULL, 10);
if (blk_print_part_devnum(IF_TYPE_IDE, dev)) {
printf("\nIDE device %d not available\n", dev);
return CMD_RET_FAILURE;
}
return 1;
}
return CMD_RET_USAGE;
default:
/* at least 4 args */
if (strcmp(argv[1], "read") == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong cnt = simple_strtoul(argv[4], NULL, 16);
ulong n;
#ifdef CONFIG_SYS_64BIT_LBA
lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
printf("\nIDE read: device %d block # %lld, count %ld...",
curr_device, blk, cnt);
#else
lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
printf("\nIDE read: device %d block # %ld, count %ld...",
curr_device, blk, cnt);
#endif
n = blk_read_devnum(IF_TYPE_IDE, curr_device, blk, cnt,
(ulong *)addr);
printf("%ld blocks read: %s\n",
n, (n == cnt) ? "OK" : "ERROR");
if (n == cnt)
return 0;
else
return 1;
} else if (strcmp(argv[1], "write") == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong cnt = simple_strtoul(argv[4], NULL, 16);
ulong n;
#ifdef CONFIG_SYS_64BIT_LBA
lbaint_t blk = simple_strtoull(argv[3], NULL, 16);
printf("\nIDE write: device %d block # %lld, count %ld...",
curr_device, blk, cnt);
#else
lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
printf("\nIDE write: device %d block # %ld, count %ld...",
curr_device, blk, cnt);
#endif
n = blk_write_devnum(IF_TYPE_IDE, curr_device, blk, cnt,
(ulong *)addr);
printf("%ld blocks written: %s\n", n,
n == cnt ? "OK" : "ERROR");
if (n == cnt)
return 0;
else
return 1;
} else {
return CMD_RET_USAGE;
}
return rcode;
}
}
int do_diskboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
return common_diskboot(cmdtp, "ide", argc, argv);
}
U_BOOT_CMD(ide, 5, 1, do_ide,
"IDE sub-system",
"reset - reset IDE controller\n"
"ide info - show available IDE devices\n"
"ide device [dev] - show or set current device\n"
"ide part [dev] - print partition table of one or all IDE devices\n"
"ide read addr blk# cnt\n"
"ide write addr blk# cnt - read/write `cnt'"
" blocks starting at block `blk#'\n"
" to/from memory address `addr'");
U_BOOT_CMD(diskboot, 3, 1, do_diskboot,
"boot from IDE device", "loadAddr dev:part");