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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 16:45:22 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-10 16:45:22 -0500
commit7b3480f8b701170c046e1ed362946f5f0d005e13 (patch)
treebd25e05b4f35699689b485480dddf24f840f80af /include/linux/mtd/cfi_endian.h
parent1c8106528aa6bf16b3f457de80df1cf7462a49a4 (diff)
parentb60ef99c1164a8ad346cf41f9e71acfffb6d25a6 (diff)
Merge tag 'for-linus-3.3' of git://git.infradead.org/mtd-2.6
MTD pull for 3.3 * tag 'for-linus-3.3' of git://git.infradead.org/mtd-2.6: (113 commits) mtd: Fix dependency for MTD_DOC200x mtd: do not use mtd->block_markbad directly logfs: do not use 'mtd->block_isbad' directly mtd: introduce mtd_can_have_bb helper mtd: do not use mtd->suspend and mtd->resume directly mtd: do not use mtd->lock, unlock and is_locked directly mtd: do not use mtd->sync directly mtd: harmonize mtd_writev usage mtd: do not use mtd->lock_user_prot_reg directly mtd: mtd->write_user_prot_reg directly mtd: do not use mtd->read_*_prot_reg directly mtd: do not use mtd->get_*_prot_info directly mtd: do not use mtd->read_oob directly mtd: mtdoops: do not use mtd->panic_write directly romfs: do not use mtd->get_unmapped_area directly mtd: do not use mtd->get_unmapped_area directly mtd: do use mtd->point directly mtd: introduce mtd_has_oob helper mtd: mtdcore: export symbols cleanup mtd: clean-up the default_mtd_writev function ... Fix up trivial edit/remove conflict in drivers/staging/spectra/lld_mtd.c
Diffstat (limited to 'include/linux/mtd/cfi_endian.h')
-rw-r--r--include/linux/mtd/cfi_endian.h76
1 files changed, 29 insertions, 47 deletions
diff --git a/include/linux/mtd/cfi_endian.h b/include/linux/mtd/cfi_endian.h
index 51cc3f5917a8..b97a625071f8 100644
--- a/include/linux/mtd/cfi_endian.h
+++ b/include/linux/mtd/cfi_endian.h
@@ -19,53 +19,35 @@
19 19
20#include <asm/byteorder.h> 20#include <asm/byteorder.h>
21 21
22#ifndef CONFIG_MTD_CFI_ADV_OPTIONS 22#define CFI_HOST_ENDIAN 1
23 23#define CFI_LITTLE_ENDIAN 2
24#define CFI_HOST_ENDIAN 24#define CFI_BIG_ENDIAN 3
25 25
26#else 26#if !defined(CONFIG_MTD_CFI_ADV_OPTIONS) || defined(CONFIG_MTD_CFI_NOSWAP)
27 27#define CFI_DEFAULT_ENDIAN CFI_HOST_ENDIAN
28#ifdef CONFIG_MTD_CFI_NOSWAP 28#elif defined(CONFIG_MTD_CFI_LE_BYTE_SWAP)
29#define CFI_HOST_ENDIAN 29#define CFI_DEFAULT_ENDIAN CFI_LITTLE_ENDIAN
30#endif 30#elif defined(CONFIG_MTD_CFI_BE_BYTE_SWAP)
31 31#define CFI_DEFAULT_ENDIAN CFI_BIG_ENDIAN
32#ifdef CONFIG_MTD_CFI_LE_BYTE_SWAP
33#define CFI_LITTLE_ENDIAN
34#endif
35
36#ifdef CONFIG_MTD_CFI_BE_BYTE_SWAP
37#define CFI_BIG_ENDIAN
38#endif
39
40#endif
41
42#if defined(CFI_LITTLE_ENDIAN)
43#define cpu_to_cfi8(x) (x)
44#define cfi8_to_cpu(x) (x)
45#define cpu_to_cfi16(x) cpu_to_le16(x)
46#define cpu_to_cfi32(x) cpu_to_le32(x)
47#define cpu_to_cfi64(x) cpu_to_le64(x)
48#define cfi16_to_cpu(x) le16_to_cpu(x)
49#define cfi32_to_cpu(x) le32_to_cpu(x)
50#define cfi64_to_cpu(x) le64_to_cpu(x)
51#elif defined (CFI_BIG_ENDIAN)
52#define cpu_to_cfi8(x) (x)
53#define cfi8_to_cpu(x) (x)
54#define cpu_to_cfi16(x) cpu_to_be16(x)
55#define cpu_to_cfi32(x) cpu_to_be32(x)
56#define cpu_to_cfi64(x) cpu_to_be64(x)
57#define cfi16_to_cpu(x) be16_to_cpu(x)
58#define cfi32_to_cpu(x) be32_to_cpu(x)
59#define cfi64_to_cpu(x) be64_to_cpu(x)
60#elif defined (CFI_HOST_ENDIAN)
61#define cpu_to_cfi8(x) (x)
62#define cfi8_to_cpu(x) (x)
63#define cpu_to_cfi16(x) (x)
64#define cpu_to_cfi32(x) (x)
65#define cpu_to_cfi64(x) (x)
66#define cfi16_to_cpu(x) (x)
67#define cfi32_to_cpu(x) (x)
68#define cfi64_to_cpu(x) (x)
69#else 32#else
70#error No CFI endianness defined 33#error No CFI endianness defined
71#endif 34#endif
35
36#define cfi_default(s) ((s)?:CFI_DEFAULT_ENDIAN)
37#define cfi_be(s) (cfi_default(s) == CFI_BIG_ENDIAN)
38#define cfi_le(s) (cfi_default(s) == CFI_LITTLE_ENDIAN)
39#define cfi_host(s) (cfi_default(s) == CFI_HOST_ENDIAN)
40
41#define cpu_to_cfi8(map, x) (x)
42#define cfi8_to_cpu(map, x) (x)
43#define cpu_to_cfi16(map, x) _cpu_to_cfi(16, (map)->swap, (x))
44#define cpu_to_cfi32(map, x) _cpu_to_cfi(32, (map)->swap, (x))
45#define cpu_to_cfi64(map, x) _cpu_to_cfi(64, (map)->swap, (x))
46#define cfi16_to_cpu(map, x) _cfi_to_cpu(16, (map)->swap, (x))
47#define cfi32_to_cpu(map, x) _cfi_to_cpu(32, (map)->swap, (x))
48#define cfi64_to_cpu(map, x) _cfi_to_cpu(64, (map)->swap, (x))
49
50#define _cpu_to_cfi(w, s, x) (cfi_host(s)?(x):_swap_to_cfi(w, s, x))
51#define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
52#define _swap_to_cfi(w, s, x) (cfi_be(s)?cpu_to_be##w(x):cpu_to_le##w(x))
53#define _swap_to_cpu(w, s, x) (cfi_be(s)?be##w##_to_cpu(x):le##w##_to_cpu(x))