2 * Copyright (c) 2008 Semihalf, Rafal Jaworowski
3 * Copyright (c) 2009 Semihalf, Piotr Ziecik
4 * Copyright (c) 2012 Andrey V. Elsukov <ae@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Block storage I/O routines for U-Boot
34 #include <sys/cdefs.h>
35 #include <sys/param.h>
37 #include <machine/stdarg.h>
40 #include "api_public.h"
41 #include "bootstrap.h"
46 #define stor_printf(fmt, args...) do { \
47 printf("%s%d: ", dev->dd.d_dev->dv_name, dev->dd.d_unit); \
48 printf(fmt, ##args); \
52 #define debugf(fmt, args...) do { printf("%s(): ", __func__); \
53 printf(fmt,##args); } while (0)
55 #define debugf(fmt, args...)
59 int opened; /* device is opened */
60 int handle; /* storage device handle */
61 int type; /* storage type */
62 off_t blocks; /* block count */
63 u_int bsize; /* block size */
64 } stor_info[UB_MAX_DEV];
66 #define SI(dev) (stor_info[(dev)->dd.d_unit])
68 static int stor_info_no = 0;
69 static int stor_opendev(struct disk_devdesc *);
70 static int stor_readdev(struct disk_devdesc *, daddr_t, size_t, char *);
73 static int stor_init(void);
74 static int stor_strategy(void *, int, daddr_t, size_t, char *, size_t *);
75 static int stor_open(struct open_file *, ...);
76 static int stor_close(struct open_file *);
77 static int stor_ioctl(struct open_file *f, u_long cmd, void *data);
78 static int stor_print(int);
79 static void stor_cleanup(void);
81 struct devsw uboot_storage = {
85 .dv_strategy = stor_strategy,
87 .dv_close = stor_close,
88 .dv_ioctl = stor_ioctl,
89 .dv_print = stor_print,
90 .dv_cleanup = stor_cleanup,
91 .dv_fmtdev = disk_fmtdev,
92 .dv_parsedev = disk_parsedev,
98 struct device_info *di;
102 printf("No U-Boot devices! Really enumerated?\n");
106 for (i = 0; i < devs_no; i++) {
108 if ((di != NULL) && (di->type & DEV_TYP_STOR)) {
109 if (stor_info_no >= UB_MAX_DEV) {
110 printf("Too many storage devices: %d\n",
114 stor_info[stor_info_no].handle = i;
115 stor_info[stor_info_no].opened = 0;
116 stor_info[stor_info_no].type = di->type;
117 stor_info[stor_info_no].blocks =
118 di->di_stor.block_count;
119 stor_info[stor_info_no].bsize =
120 di->di_stor.block_size;
126 debugf("No storage devices\n");
130 debugf("storage devices found: %d\n", stor_info_no);
139 for (i = 0; i < stor_info_no; i++)
140 if (stor_info[i].opened > 0)
141 ub_dev_close(stor_info[i].handle);
145 stor_strategy(void *devdata, int rw, daddr_t blk, size_t size,
146 char *buf, size_t *rsize)
148 struct disk_devdesc *dev = (struct disk_devdesc *)devdata;
154 stor_printf("write attempt, operation not supported!\n");
158 if (size % SI(dev).bsize) {
159 stor_printf("size=%zu not multiple of device "
161 size, SI(dev).bsize);
164 bcount = size / SI(dev).bsize;
168 err = stor_readdev(dev, blk + dev->d_offset, bcount, buf);
176 stor_open(struct open_file *f, ...)
179 struct disk_devdesc *dev;
182 dev = va_arg(ap, struct disk_devdesc *);
185 return (stor_opendev(dev));
189 stor_opendev(struct disk_devdesc *dev)
193 if (dev->dd.d_unit < 0 || dev->dd.d_unit >= stor_info_no)
196 if (SI(dev).opened == 0) {
197 err = ub_dev_open(SI(dev).handle);
199 stor_printf("device open failed with error=%d, "
200 "handle=%d\n", err, SI(dev).handle);
205 return (disk_open(dev, SI(dev).blocks * SI(dev).bsize,
210 stor_close(struct open_file *f)
212 struct disk_devdesc *dev;
214 dev = (struct disk_devdesc *)(f->f_devdata);
215 return (disk_close(dev));
219 stor_readdev(struct disk_devdesc *dev, daddr_t blk, size_t size, char *buf)
224 debugf("reading blk=%d size=%d @ 0x%08x\n", (int)blk, size, (uint32_t)buf);
226 err = ub_dev_read(SI(dev).handle, buf, size, blk, &real_size);
228 stor_printf("read failed, error=%d\n", err);
232 if (real_size != size) {
233 stor_printf("real size != size\n");
241 stor_print(int verbose)
243 struct disk_devdesc dev;
244 static char line[80];
247 if (stor_info_no == 0)
250 printf("%s devices:", uboot_storage.dv_name);
251 if ((ret = pager_output("\n")) != 0)
254 for (i = 0; i < stor_info_no; i++) {
255 dev.dd.d_dev = &uboot_storage;
257 dev.d_slice = D_SLICENONE;
258 dev.d_partition = D_PARTNONE;
259 snprintf(line, sizeof(line), "\tdisk%d (%s)\n", i,
260 ub_stor_type(SI(&dev).type));
261 if ((ret = pager_output(line)) != 0)
263 if (stor_opendev(&dev) == 0) {
264 sprintf(line, "\tdisk%d", i);
265 ret = disk_print(&dev, line, verbose);
275 stor_ioctl(struct open_file *f, u_long cmd, void *data)
277 struct disk_devdesc *dev;
280 dev = (struct disk_devdesc *)f->f_devdata;
281 rc = disk_ioctl(dev, cmd, data);
286 case DIOCGSECTORSIZE:
287 *(u_int *)data = SI(dev).bsize;
290 *(uint64_t *)data = SI(dev).bsize * SI(dev).blocks;
300 * Return the device unit number for the given type and type-relative unit
304 uboot_diskgetunit(int type, int type_unit)
310 for (i = 0; i < stor_info_no; i++) {
311 if ((stor_info[i].type & type) == type) {
312 if (local_type_unit == type_unit) {