Messages in this thread Patch in this message | | | Date | Tue, 22 Nov 2005 23:11:00 -0500 | From | Bob Copeland <> | Subject | [PATCH] partitions: Read Rio Karma boot sector |
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The Rio Karma has a proprietary boot sector with an MSDOS-like partition table. Add support for it to enable mounting of the device.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
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(I don't know who, if anyone, owns fs/partitions and MAINTAINERS didn't seem clear on that point.)
fs/partitions/Kconfig | 7 ++++++ fs/partitions/Makefile | 1 + fs/partitions/check.c | 4 +++ fs/partitions/karma.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/partitions/karma.h | 8 +++++++ 5 files changed, 77 insertions(+), 0 deletions(-) create mode 100644 fs/partitions/karma.c create mode 100644 fs/partitions/karma.h
applies-to: 3f92a0ea6d1780823f2c56e512942bcc6e7817ef 37c5c6803376f54306a7690bfb99c96cff5534de diff --git a/fs/partitions/Kconfig b/fs/partitions/Kconfig index deb25b6..f916ef1 100644 --- a/fs/partitions/Kconfig +++ b/fs/partitions/Kconfig @@ -225,4 +225,11 @@ config EFI_PARTITION were partitioned using EFI GPT. Presently only useful on the IA-64 platform. +config KARMA_PARTITION + bool "Karma Partition support" + depends on PARTITION_ADVANCED + help + Say Y here if you would like to mount the Rio Karma MP3 player, + as it uses a proprietary partition table. + # define_bool CONFIG_ACORN_PARTITION_CUMANA y diff --git a/fs/partitions/Makefile b/fs/partitions/Makefile index 66d5cc2..42c7d38 100644 --- a/fs/partitions/Makefile +++ b/fs/partitions/Makefile @@ -17,3 +17,4 @@ obj-$(CONFIG_SUN_PARTITION) += sun.o obj-$(CONFIG_ULTRIX_PARTITION) += ultrix.o obj-$(CONFIG_IBM_PARTITION) += ibm.o obj-$(CONFIG_EFI_PARTITION) += efi.o +obj-$(CONFIG_KARMA_PARTITION) += karma.o diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 8dc1822..ac10938 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -35,6 +35,7 @@ #include "ibm.h" #include "ultrix.h" #include "efi.h" +#include "karma.h" #ifdef CONFIG_BLK_DEV_MD extern void md_autodetect_dev(dev_t dev); @@ -103,6 +104,9 @@ static int (*check_part[])(struct parsed #ifdef CONFIG_IBM_PARTITION ibm_partition, #endif +#ifdef CONFIG_KARMA_PARTITION + karma_partition, +#endif NULL }; diff --git a/fs/partitions/karma.c b/fs/partitions/karma.c new file mode 100644 index 0000000..b4f5fed --- /dev/null +++ b/fs/partitions/karma.c @@ -0,0 +1,57 @@ +/* + * fs/partitions/karma.c + * Rio Karma partition info. + * + * Copyright (C) 2005 Bob Copeland (me@bobcopeland.com) + * based on ofs.c + */ + +#include "check.h" +#include "karma.h" + +int karma_partition(struct parsed_partitions *state, struct block_device *bdev) +{ + int i; + int slot = 1; + Sector sect; + unsigned char *data; + struct disklabel { + u8 reserved[270]; + struct d_partition { + __le32 res; + u8 fstype; + u8 res2[3]; + __le32 offset; + __le32 size; + } partitions[2]; + u8 blank[208]; + __le16 magic; + } __attribute__((packed)) *label; + struct d_partition *p; + + data = read_dev_sector(bdev, 0, §); + if (!data) + return -1; + + label = (struct disklabel *) data; + if (le16_to_cpu(label->magic) != KARMA_LABEL_MAGIC) { + put_dev_sector(sect); + return 0; + } + + p = label->partitions; + for (i = 0 ; i < 2; i++, p++) { + if (slot == state->limit) + break; + + if (p->fstype == 0x4d && le32_to_cpu(p->size)) { + put_partition(state, slot, le32_to_cpu(p->offset), + le32_to_cpu(p->size)); + } + slot++; + } + printk("\n"); + put_dev_sector(sect); + return 1; +} + diff --git a/fs/partitions/karma.h b/fs/partitions/karma.h new file mode 100644 index 0000000..ecf7d3f --- /dev/null +++ b/fs/partitions/karma.h @@ -0,0 +1,8 @@ +/* + * fs/partitions/karma.h + */ + +#define KARMA_LABEL_MAGIC 0xAB56 + +int karma_partition(struct parsed_partitions *state, struct block_device *bdev); + --- 0.99.9i -- Bob Copeland %% www.bobcopeland.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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