diff options
Diffstat (limited to 'sys/boot/mips/beri/loader/beri_disk_sdcard.c')
-rw-r--r-- | sys/boot/mips/beri/loader/beri_disk_sdcard.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/sys/boot/mips/beri/loader/beri_disk_sdcard.c b/sys/boot/mips/beri/loader/beri_disk_sdcard.c new file mode 100644 index 000000000000..b95e22d8e449 --- /dev/null +++ b/sys/boot/mips/beri/loader/beri_disk_sdcard.c @@ -0,0 +1,154 @@ +/*- + * Copyright (c) 2013-2014 Robert N. M. Watson + * All rights reserved. + * + * This software was developed by SRI International and the University of + * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) + * ("CTSRD"), as part of the DARPA CRASH research programme. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> + +#include <bootstrap.h> +#include <stdarg.h> + +#include <stand.h> +#include <disk.h> + +#include <sdcard.h> + +static int beri_sdcard_disk_init(void); +static int beri_sdcard_disk_open(struct open_file *, ...); +static int beri_sdcard_disk_close(struct open_file *); +static void beri_sdcard_disk_cleanup(void); +static int beri_sdcard_disk_strategy(void *, int, daddr_t, size_t, + char *, size_t *); +static int beri_sdcard_disk_print(int); + +struct devsw beri_sdcard_disk = { + .dv_name = "sdcard", + .dv_type = DEVT_DISK, + .dv_init = beri_sdcard_disk_init, + .dv_strategy = beri_sdcard_disk_strategy, + .dv_open = beri_sdcard_disk_open, + .dv_close = beri_sdcard_disk_close, + .dv_ioctl = noioctl, + .dv_print = beri_sdcard_disk_print, + .dv_cleanup = beri_sdcard_disk_cleanup, +}; + +static int +beri_sdcard_disk_init(void) +{ + + return (0); +} + +static int +beri_sdcard_disk_strategy(void *devdata, int flag, daddr_t dblk, size_t size, + char *buf, size_t *rsizep) +{ + int error; + + if (flag == F_WRITE) + return (EROFS); + if (flag != F_READ) + return (EINVAL); + if (rsizep != NULL) + *rsizep = 0; + error = altera_sdcard_read(buf, dblk, size >> 9); + if (error == 0 && rsizep != NULL) + *rsizep = size; + else if (error != 0) + printf("%s: error %d\n", __func__, error); + return (error); +} + +static int +beri_sdcard_disk_open(struct open_file *f, ...) +{ + va_list ap; + struct disk_devdesc *dev; + + va_start(ap, f); + dev = va_arg(ap, struct disk_devdesc *); + va_end(ap); + + if (!(altera_sdcard_get_present())) { + printf("SD card not present or not supported\n"); + return (ENXIO); + } + + if (dev->d_unit != 0) + return (EIO); + return (disk_open(dev, altera_sdcard_get_mediasize(), + altera_sdcard_get_sectorsize(), 0)); +} + +static int +beri_sdcard_disk_close(struct open_file *f) +{ + struct disk_devdesc *dev; + + dev = (struct disk_devdesc *)f->f_devdata; + return (disk_close(dev)); +} + +static int +beri_sdcard_disk_print(int verbose) +{ + struct disk_devdesc dev; + char line[80]; + int ret; + + printf("%s devices:", beri_sdcard_disk.dv_name); + if ((ret = pager_output("\n")) != 0) + return (ret); + + snprintf(line, sizeof(line), " sdcard%d Altera SD card drive\n", 0); + ret = pager_output(line); + if (ret != 0) + return (ret); + dev.d_dev = &beri_sdcard_disk; + dev.d_unit = 0; + dev.d_slice = -1; + dev.d_partition = -1; + if (disk_open(&dev, altera_sdcard_get_mediasize(), + altera_sdcard_get_sectorsize(), 0) == 0) { + snprintf(line, sizeof(line), " sdcard%d", 0); + ret = disk_print(&dev, line, verbose); + disk_close(&dev); + } + return (ret); +} + +static void +beri_sdcard_disk_cleanup(void) +{ + + disk_cleanup(&beri_sdcard_disk); +} |