mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 17:08:52 +09:00
![Przemyslaw Marczak](/assets/img/avatar_default.png)
UMS init was implemented in trats board file but mostly it comprises common code. Due to that it has been moved to common/ums.c to avoid code duplication in the future. Changes: - move ums initialization code from trats to common/ums.c - remove unused CONFIG_USB_GADGET_MASS_STORAGE from trats.h Changes v2: - move this patch at the top of code cleanups patches Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Marek Vasut <marex@denx.de> Cc: Minkyu Kang <mk7.kang@samsung.com>
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/*
|
|
* Copyright (C) 2013 Samsung Electronics
|
|
* Lukasz Majewski <l.majewski@samsung.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <usb_mass_storage.h>
|
|
#include <part.h>
|
|
|
|
static int ums_read_sector(struct ums *ums_dev,
|
|
ulong start, lbaint_t blkcnt, void *buf)
|
|
{
|
|
block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev;
|
|
lbaint_t blkstart = start + ums_dev->start_sector;
|
|
int dev_num = block_dev->dev;
|
|
|
|
return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
|
|
}
|
|
|
|
static int ums_write_sector(struct ums *ums_dev,
|
|
ulong start, lbaint_t blkcnt, const void *buf)
|
|
{
|
|
block_dev_desc_t *block_dev = &ums_dev->mmc->block_dev;
|
|
lbaint_t blkstart = start + ums_dev->start_sector;
|
|
int dev_num = block_dev->dev;
|
|
|
|
return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
|
|
}
|
|
|
|
static struct ums ums_dev = {
|
|
.read_sector = ums_read_sector,
|
|
.write_sector = ums_write_sector,
|
|
.name = "UMS disk",
|
|
};
|
|
|
|
static struct ums *ums_disk_init(struct mmc *mmc)
|
|
{
|
|
uint64_t mmc_end_sector = mmc->capacity / SECTOR_SIZE;
|
|
uint64_t ums_end_sector = UMS_NUM_SECTORS + UMS_START_SECTOR;
|
|
|
|
if (!mmc_end_sector) {
|
|
error("MMC capacity is not valid");
|
|
return NULL;
|
|
}
|
|
|
|
ums_dev.mmc = mmc;
|
|
|
|
if (ums_end_sector <= mmc_end_sector) {
|
|
ums_dev.start_sector = UMS_START_SECTOR;
|
|
if (UMS_NUM_SECTORS)
|
|
ums_dev.num_sectors = UMS_NUM_SECTORS;
|
|
else
|
|
ums_dev.num_sectors = mmc_end_sector - UMS_START_SECTOR;
|
|
} else {
|
|
ums_dev.num_sectors = mmc_end_sector;
|
|
puts("UMS: defined bad disk parameters. Using default.\n");
|
|
}
|
|
|
|
printf("UMS: disk start sector: %#x, count: %#x\n",
|
|
ums_dev.start_sector, ums_dev.num_sectors);
|
|
|
|
return &ums_dev;
|
|
}
|
|
|
|
struct ums *ums_init(unsigned int dev_num)
|
|
{
|
|
struct mmc *mmc = NULL;
|
|
|
|
mmc = find_mmc_device(dev_num);
|
|
if (!mmc)
|
|
return NULL;
|
|
|
|
return ums_disk_init(mmc);
|
|
}
|