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Diffstat (limited to 'sys/boot/mips/beri/loader/beri_disk_sdcard.c')
-rw-r--r--sys/boot/mips/beri/loader/beri_disk_sdcard.c154
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);
+}