From 17d9ddc72fb8bba0d4f67868c9c612e472a594a9 Mon Sep 17 00:00:00 2001 From: "Pallipadi, Venkatesh" Date: Wed, 10 Feb 2010 15:23:44 -0800 Subject: rbtree: Add support for augmented rbtrees Add support for augmented rbtrees in core rbtree code. This will be used in subsequent patches, in x86 PAT code, which needs interval trees to efficiently keep track of PAT ranges. Signed-off-by: Venkatesh Pallipadi LKML-Reference: <20100210232343.GA11465@linux-os.sc.intel.com> Signed-off-by: Suresh Siddha Signed-off-by: H. Peter Anvin --- include/linux/rbtree.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/rbtree.h b/include/linux/rbtree.h index 9c295411d01f..8e33a256ea0e 100644 --- a/include/linux/rbtree.h +++ b/include/linux/rbtree.h @@ -110,6 +110,7 @@ struct rb_node struct rb_root { struct rb_node *rb_node; + void (*augment_cb)(struct rb_node *node); }; @@ -129,7 +130,9 @@ static inline void rb_set_color(struct rb_node *rb, int color) rb->rb_parent_color = (rb->rb_parent_color & ~1) | color; } -#define RB_ROOT (struct rb_root) { NULL, } +#define RB_ROOT (struct rb_root) { NULL, NULL, } +#define RB_AUGMENT_ROOT(x) (struct rb_root) { NULL, x} + #define rb_entry(ptr, type, member) container_of(ptr, type, member) #define RB_EMPTY_ROOT(root) ((root)->rb_node == NULL) -- cgit v1.2.2 From 1449c5d0e8f25af6c903797a636696901122e4e8 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 15 Jan 2010 11:09:32 -0700 Subject: mtd: quiet sparse noise in cfi.h In the inline function cfi_build_cmd_addr, the cast of cmd_ofs to an uint8_t produces a sparse warning of the type: warning: cast truncates bits from constant value (2aa becomes aa) Quiet the warning by masking cmd_ofs with 0xff and remove the cast. Signed-off-by: H Hartley Sweeten Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- include/linux/mtd/cfi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index df89f4275232..a4eefc5810dc 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -297,7 +297,7 @@ static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs, * and 32bit devices on 16 bit busses * set the low bit of the alternating bit sequence of the address. */ - if (((type * interleave) > bankwidth) && ((uint8_t)cmd_ofs == 0xaa)) + if (((type * interleave) > bankwidth) && ((cmd_ofs & 0xff) == 0xaa)) addr |= (type >> 1)*interleave; return addr; -- cgit v1.2.2 From b520e412faaaad35641aeedd6059179f9f1b393c Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 29 Jan 2010 20:59:42 +0000 Subject: mtd: Replace static array of devices with an idr structure Signed-off-by: Ben Hutchings Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- include/linux/mtd/mtd.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 0f32a9b6ff55..ba53ecca107c 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -20,7 +20,6 @@ #define MTD_CHAR_MAJOR 90 #define MTD_BLOCK_MAJOR 31 -#define MAX_MTD_DEVICES 32 #define MTD_ERASE_PENDING 0x01 #define MTD_ERASING 0x02 -- cgit v1.2.2 From 91f8026603d4443d1b24ee3552c5a58682bbae27 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 2 Feb 2010 14:43:10 -0800 Subject: JFFS2: avoid using C++ keyword `new' in userspace-visible header Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14995 Reported-by: R. Diez Signed-off-by: Andrew Morton Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- include/linux/jffs2.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/jffs2.h b/include/linux/jffs2.h index 2b32d638147d..0874ab59ffef 100644 --- a/include/linux/jffs2.h +++ b/include/linux/jffs2.h @@ -215,8 +215,8 @@ union jffs2_node_union /* Data payload for device nodes. */ union jffs2_device_node { - jint16_t old; - jint32_t new; + jint16_t old_id; + jint32_t new_id; }; #endif /* __LINUX_JFFS2_H__ */ -- cgit v1.2.2 From 7d70f334ad2bf1b3aaa1f0699c0f442e14bcc9e0 Mon Sep 17 00:00:00 2001 From: Vimal Singh Date: Mon, 8 Feb 2010 15:50:49 +0530 Subject: mtd: nand: add lock/unlock routines Add nand lock / unlock routines. At least 'micron' parts support this. Signed-off-by: Vimal Singh Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- include/linux/mtd/nand.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index ccab9dfc5217..48bc2c54302c 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -38,6 +38,12 @@ extern void nand_release (struct mtd_info *mtd); /* Internal helper for board drivers which need to override command function */ extern void nand_wait_ready(struct mtd_info *mtd); +/* locks all blockes present in the device */ +extern int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len); + +/* unlocks specified locked blockes */ +extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len); + /* The maximum number of NAND chips in an array */ #define NAND_MAX_CHIPS 8 @@ -82,6 +88,10 @@ extern void nand_wait_ready(struct mtd_info *mtd); #define NAND_CMD_ERASE2 0xd0 #define NAND_CMD_RESET 0xff +#define NAND_CMD_LOCK 0x2a +#define NAND_CMD_UNLOCK1 0x23 +#define NAND_CMD_UNLOCK2 0x24 + /* Extended commands for large page devices */ #define NAND_CMD_READSTART 0x30 #define NAND_CMD_RNDOUTSTART 0xE0 -- cgit v1.2.2 From f3e69c6584be2db1ccd5292d6a1d7c566d265701 Mon Sep 17 00:00:00 2001 From: Guillaume LECERF Date: Tue, 15 Dec 2009 23:01:06 +0100 Subject: mtd: move more manufacturers to the common cfi.h header file Move MANUFACTURER_MACRONIX and MANUFACTURER_SST definitions to the include/linux/mtd/cfi.h header file and rename them to CFI_MFR_MACRONIX and CFI_MFR_SST. All references in drivers/mtd/chips/cfi_cmdset_0002.c are updated to reflect this. Signed-off-by: Guillaume LECERF Signed-off-by: David Woodhouse --- include/linux/mtd/cfi.h | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index a4eefc5810dc..cee05b1e62b1 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -518,11 +518,13 @@ struct cfi_fixup { #define CFI_MFR_ANY 0xffff #define CFI_ID_ANY 0xffff -#define CFI_MFR_AMD 0x0001 -#define CFI_MFR_INTEL 0x0089 -#define CFI_MFR_ATMEL 0x001F -#define CFI_MFR_SAMSUNG 0x00EC -#define CFI_MFR_ST 0x0020 /* STMicroelectronics */ +#define CFI_MFR_AMD 0x0001 +#define CFI_MFR_ATMEL 0x001F +#define CFI_MFR_INTEL 0x0089 +#define CFI_MFR_MACRONIX 0x00C2 +#define CFI_MFR_SAMSUNG 0x00EC +#define CFI_MFR_SST 0x00BF +#define CFI_MFR_ST 0x0020 /* STMicroelectronics */ void cfi_fixup(struct mtd_info *mtd, struct cfi_fixup* fixups); -- cgit v1.2.2 From 3bd456576f22acd55fb6c3d3d4261131821f5a3b Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 22 Feb 2010 20:39:28 +0200 Subject: mtd: create unlocked versions of {get,put}_mtd_device Use these only if you know that you already hold mtd_table_mutex Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- include/linux/mtd/mtd.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index ba53ecca107c..11d8e68d17c0 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -289,8 +289,9 @@ extern int add_mtd_device(struct mtd_info *mtd); extern int del_mtd_device (struct mtd_info *mtd); extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num); +extern int __get_mtd_device(struct mtd_info *mtd); +extern void __put_mtd_device(struct mtd_info *mtd); extern struct mtd_info *get_mtd_device_nm(const char *name); - extern void put_mtd_device(struct mtd_info *mtd); -- cgit v1.2.2 From a863862257b7dd08d855bafcb0aedd9ad848ed91 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 22 Feb 2010 20:39:29 +0200 Subject: mtd: blktrans: remove mtd_blkcore_priv, switch to per device queue and thread This is the biggest change. To make hotplug possible, and this layer clean, the mtd_blktrans_dev now contains everything for a single mtd block translation device. Also removed some very old leftovers. Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- include/linux/mtd/blktrans.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index 8b4aa0523db7..a4b392868b54 100644 --- a/include/linux/mtd/blktrans.h +++ b/include/linux/mtd/blktrans.h @@ -24,11 +24,13 @@ struct mtd_blktrans_dev { int devnum; unsigned long size; int readonly; - void *blkcore_priv; /* gendisk in 2.5, devfs_handle in 2.4 */ + struct gendisk *disk; + struct task_struct *thread; + struct request_queue *rq; + spinlock_t queue_lock; + void *priv; }; -struct blkcore_priv; /* Differs for 2.4 and 2.5 kernels; private */ - struct mtd_blktrans_ops { char *name; int major; @@ -60,8 +62,6 @@ struct mtd_blktrans_ops { struct list_head devs; struct list_head list; struct module *owner; - - struct mtd_blkcore_priv *blkcore_priv; }; extern int register_mtd_blktrans(struct mtd_blktrans_ops *tr); -- cgit v1.2.2 From 048d87199566663e4edc4880df3703c04bcf41d9 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 22 Feb 2010 20:39:30 +0200 Subject: mtd: blktrans: Hotplug fixes * Add locking where it was missing. * Don't do a get_mtd_device in blktrans_open because it would lead to a deadlock; instead do that in add_mtd_blktrans_dev. * Only free the mtd_blktrans_dev structure when the last user exits. * Flush request queue on device removal. * Track users, and call tr->release in del_mtd_blktrans_dev Due to that ->open and release aren't called more that once. Now it is safe to call del_mtd_blktrans_dev while the device is still in use. Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- include/linux/mtd/blktrans.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index a4b392868b54..d89b8fbba4c9 100644 --- a/include/linux/mtd/blktrans.h +++ b/include/linux/mtd/blktrans.h @@ -9,6 +9,7 @@ #define __MTD_TRANS_H__ #include +#include struct hd_geometry; struct mtd_info; @@ -24,6 +25,8 @@ struct mtd_blktrans_dev { int devnum; unsigned long size; int readonly; + int open; + struct kref ref; struct gendisk *disk; struct task_struct *thread; struct request_queue *rq; -- cgit v1.2.2 From 026ec57886b67c092bf7baecd029a7c1c4998c28 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 22 Feb 2010 20:39:33 +0200 Subject: mtd: blktrans: allow FTL drivers to export sysfs attributes This patch adds an ability to export sysfs attributes below the block disk device. This can be used to pass the udev an information about the FTL and could include the vendor, serial, version, etc... Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- include/linux/mtd/blktrans.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/blktrans.h b/include/linux/mtd/blktrans.h index d89b8fbba4c9..b481ccd7ff3c 100644 --- a/include/linux/mtd/blktrans.h +++ b/include/linux/mtd/blktrans.h @@ -10,6 +10,7 @@ #include #include +#include struct hd_geometry; struct mtd_info; @@ -28,6 +29,7 @@ struct mtd_blktrans_dev { int open; struct kref ref; struct gendisk *disk; + struct attribute_group *disk_attributes; struct task_struct *thread; struct request_queue *rq; spinlock_t queue_lock; -- cgit v1.2.2 From b64d39d8b03fea88417d53715ccbebf71d4dcc9f Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 22 Feb 2010 20:39:37 +0200 Subject: mtd: nand: make reads using MTD_OOB_RAW affect only ECC validation This changes the behavier of MTD_OOB_RAW. It used to read both OOB and data to the data buffer, however you would still need to specify the dummy oob buffer. This is only used in one place, but makes it hard to read data+oob without ECC test, thus I removed that behavier, and fixed the user. Now MTD_OOB_RAW behaves just like MTD_OOB_PLACE, but doesn't do ECC validation Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- include/linux/mtd/mtd.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 11d8e68d17c0..5326435a7571 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -60,9 +60,7 @@ struct mtd_erase_region_info { * MTD_OOB_PLACE: oob data are placed at the given offset * MTD_OOB_AUTO: oob data are automatically placed at the free areas * which are defined by the ecclayout - * MTD_OOB_RAW: mode to read raw data+oob in one chunk. The oob data - * is inserted into the data. Thats a raw image of the - * flash contents. + * MTD_OOB_RAW: mode to read oob and data without doing ECC checking */ typedef enum { MTD_OOB_PLACE, -- cgit v1.2.2 From e0b58d0a7005cd4b9c7fa4694a437a2d86719c13 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 22 Feb 2010 20:39:38 +0200 Subject: mtd: nand: add ->badblockbits for minimum number of set bits in bad block byte This can be used to protect against bitflips in that field, but now mostly for smartmedia. Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- include/linux/mtd/nand.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 48bc2c54302c..f2d4a1ac14b8 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -401,6 +401,7 @@ struct nand_chip { int subpagesize; uint8_t cellinfo; int badblockpos; + int badblockbits; flstate_t state; -- cgit v1.2.2 From 5e81e88a4c140586d9212999cea683bcd66a15c6 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Fri, 26 Feb 2010 18:32:56 +0000 Subject: mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident() Signed-off-by: David Woodhouse --- include/linux/mtd/nand.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index f2d4a1ac14b8..d152bdf9161f 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -25,11 +25,13 @@ #include struct mtd_info; +struct nand_flash_dev; /* Scan and identify a NAND device */ extern int nand_scan (struct mtd_info *mtd, int max_chips); /* Separate phases of nand_scan(), allowing board driver to intervene * and override command or ECC setup according to flash type */ -extern int nand_scan_ident(struct mtd_info *mtd, int max_chips); +extern int nand_scan_ident(struct mtd_info *mtd, int max_chips, + struct nand_flash_dev *table); extern int nand_scan_tail(struct mtd_info *mtd); /* Free resources held by the NAND device */ -- cgit v1.2.2 From 93edbad69b0491d794c2ec86bcc65c69eac676e3 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Mon, 22 Feb 2010 20:39:40 +0200 Subject: mtd: Workaround wrong write protect status on some xD cards Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- include/linux/mtd/nand.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index d152bdf9161f..8bdacb885f90 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -182,6 +182,12 @@ typedef enum { /* Chip does not allow subpage writes */ #define NAND_NO_SUBPAGE_WRITE 0x00000200 +/* Device is one of 'new' xD cards that expose fake nand command set */ +#define NAND_BROKEN_XD 0x00000400 + +/* Device behaves just like nand, but is readonly */ +#define NAND_ROM 0x00000800 + /* Options valid for Samsung large page devices */ #define NAND_SAMSUNG_LP_OPTIONS \ (NAND_NO_PADDING | NAND_CACHEPRG | NAND_COPYBACK) -- cgit v1.2.2 From 4abc14a733f9002c05623db755aaafdd27fa7a91 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 20 Jan 2010 14:52:23 +0100 Subject: iommu-api: Rename ->{un}map function pointers to ->{un}map_range The new function pointer names match better with the top-level functions of the iommu-api which are using them. Main intention of this change is to make the ->{un}map pointer names free for two new mapping functions. Signed-off-by: Joerg Roedel --- include/linux/iommu.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 3af4ffd591b9..0f18f37a6503 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -36,10 +36,10 @@ struct iommu_ops { void (*domain_destroy)(struct iommu_domain *domain); int (*attach_dev)(struct iommu_domain *domain, struct device *dev); void (*detach_dev)(struct iommu_domain *domain, struct device *dev); - int (*map)(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot); - void (*unmap)(struct iommu_domain *domain, unsigned long iova, - size_t size); + int (*map_range)(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, size_t size, int prot); + void (*unmap_range)(struct iommu_domain *domain, unsigned long iova, + size_t size); phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, unsigned long iova); int (*domain_has_cap)(struct iommu_domain *domain, -- cgit v1.2.2 From cefc53c7f494240d4813c80154c7617452d1904d Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 8 Jan 2010 13:35:09 +0100 Subject: iommu-api: Add iommu_map and iommu_unmap functions These two functions provide support for mapping and unmapping physical addresses to io virtual addresses. The difference to the iommu_(un)map_range() is that the new functions take a gfp_order parameter instead of a size. This allows the IOMMU backend implementations to detect easier if a given range can be mapped by larger page sizes. These new functions should replace the old ones in the long term. Signed-off-by: Joerg Roedel --- include/linux/iommu.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 0f18f37a6503..6d0035bb1a0c 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -60,6 +60,10 @@ extern int iommu_map_range(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, size_t size, int prot); extern void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova, size_t size); +extern int iommu_map(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, int gfp_order, int prot); +extern int iommu_unmap(struct iommu_domain *domain, unsigned long iova, + int gfp_order); extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, unsigned long iova); extern int iommu_domain_has_cap(struct iommu_domain *domain, @@ -108,6 +112,18 @@ static inline void iommu_unmap_range(struct iommu_domain *domain, { } +static inline int iommu_map(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, int gfp_order, int prot) +{ + return -ENODEV; +} + +static inline int iommu_unmap(struct iommu_domain *domain, unsigned long iova, + int gfp_order) +{ + return -ENODEV; +} + static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, unsigned long iova) { -- cgit v1.2.2 From 67651786948c360c3122b8a17cb1e59209d50880 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 21 Jan 2010 16:32:27 +0100 Subject: iommu-api: Add ->{un}map callbacks to iommu_ops This patch adds new callbacks for mapping and unmapping pages to the iommu_ops structure. These callbacks are aware of page sizes which makes them different to the ->{un}map_range callbacks. Signed-off-by: Joerg Roedel --- include/linux/iommu.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 6d0035bb1a0c..5a7a3d888dac 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -36,6 +36,10 @@ struct iommu_ops { void (*domain_destroy)(struct iommu_domain *domain); int (*attach_dev)(struct iommu_domain *domain, struct device *dev); void (*detach_dev)(struct iommu_domain *domain, struct device *dev); + int (*map)(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, int gfp_order, int prot); + int (*unmap)(struct iommu_domain *domain, unsigned long iova, + int gfp_order); int (*map_range)(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, size_t size, int prot); void (*unmap_range)(struct iommu_domain *domain, unsigned long iova, -- cgit v1.2.2 From 12c7389abe5786349d3ea6da1961cf78d0c1c7cd Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 21 Jan 2010 11:50:28 +0100 Subject: iommu-api: Remove iommu_{un}map_range functions These functions are not longer used and can be removed savely. There functionality is now provided by the iommu_{un}map functions which are also capable of multiple page sizes. Signed-off-by: Joerg Roedel --- include/linux/iommu.h | 20 -------------------- 1 file changed, 20 deletions(-) (limited to 'include/linux') diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 5a7a3d888dac..be22ad83689c 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -40,10 +40,6 @@ struct iommu_ops { phys_addr_t paddr, int gfp_order, int prot); int (*unmap)(struct iommu_domain *domain, unsigned long iova, int gfp_order); - int (*map_range)(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot); - void (*unmap_range)(struct iommu_domain *domain, unsigned long iova, - size_t size); phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, unsigned long iova); int (*domain_has_cap)(struct iommu_domain *domain, @@ -60,10 +56,6 @@ extern int iommu_attach_device(struct iommu_domain *domain, struct device *dev); extern void iommu_detach_device(struct iommu_domain *domain, struct device *dev); -extern int iommu_map_range(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot); -extern void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova, - size_t size); extern int iommu_map(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, int gfp_order, int prot); extern int iommu_unmap(struct iommu_domain *domain, unsigned long iova, @@ -104,18 +96,6 @@ static inline void iommu_detach_device(struct iommu_domain *domain, { } -static inline int iommu_map_range(struct iommu_domain *domain, - unsigned long iova, phys_addr_t paddr, - size_t size, int prot) -{ - return -ENODEV; -} - -static inline void iommu_unmap_range(struct iommu_domain *domain, - unsigned long iova, size_t size) -{ -} - static inline int iommu_map(struct iommu_domain *domain, unsigned long iova, phys_addr_t paddr, int gfp_order, int prot) { -- cgit v1.2.2 From 63e690caf24e8f43ba019fe1107669746b072d80 Mon Sep 17 00:00:00 2001 From: Andrea Gelmini Date: Mon, 8 Mar 2010 13:13:07 +0100 Subject: netfilter: include/linux/netfilter/nf_conntrack_tuple_common.h: Checkpatch cleanup include/linux/netfilter/nf_conntrack_tuple_common.h:5: ERROR: open brace '{' following enum go on the same line Signed-off-by: Andrea Gelmini Acked-by: David S. Miller Signed-off-by: Patrick McHardy --- include/linux/netfilter/nf_conntrack_tuple_common.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter/nf_conntrack_tuple_common.h b/include/linux/netfilter/nf_conntrack_tuple_common.h index 8e145f0d61cb..2ea22b018a87 100644 --- a/include/linux/netfilter/nf_conntrack_tuple_common.h +++ b/include/linux/netfilter/nf_conntrack_tuple_common.h @@ -1,8 +1,7 @@ #ifndef _NF_CONNTRACK_TUPLE_COMMON_H #define _NF_CONNTRACK_TUPLE_COMMON_H -enum ip_conntrack_dir -{ +enum ip_conntrack_dir { IP_CT_DIR_ORIGINAL, IP_CT_DIR_REPLY, IP_CT_DIR_MAX -- cgit v1.2.2 From 7b4df05537f4e6c0c3524055ece7f99b5c98cc87 Mon Sep 17 00:00:00 2001 From: YOSHIFUJI Hideaki Date: Mon, 8 Mar 2010 13:17:01 +0100 Subject: netfilter: remove stale declaration for ip6_masked_addrcmp() Commit f2ffd9ee... ("[NETFILTER]: Move ip6_masked_addrcmp to include/net/ipv6.h") replaced ip6_masked_addrcmp() with ipv6_masked_addr_cmp(). Function definition went away. Let's remove its declaration as well in header file. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: Patrick McHardy --- include/linux/netfilter_ipv6/ip6_tables.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/netfilter_ipv6/ip6_tables.h b/include/linux/netfilter_ipv6/ip6_tables.h index e5ba03d783c6..18442ff19c07 100644 --- a/include/linux/netfilter_ipv6/ip6_tables.h +++ b/include/linux/netfilter_ipv6/ip6_tables.h @@ -316,10 +316,6 @@ extern int ip6t_ext_hdr(u8 nexthdr); extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, int target, unsigned short *fragoff); -extern int ip6_masked_addrcmp(const struct in6_addr *addr1, - const struct in6_addr *mask, - const struct in6_addr *addr2); - #define IP6T_ALIGN(s) XT_ALIGN(s) #ifdef CONFIG_COMPAT -- cgit v1.2.2 From a636ee7fb35b731ba2b331f6294e809bb6be09c8 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Tue, 9 Mar 2010 06:57:53 +0000 Subject: driver core: Early dev_name() support. Presently early platform devices suffer from the fact they are unable to use dev_xxx() calls early on due to dev_name() and others being unavailable at the time ->probe() is called. This implements early init_name construction from the matched name/id pair following the semantics of the late device/driver match. As a result, matched IDs (inclusive of requested ones) are preserved when the handoff from the early platform code happens at kobject initialization time. Since we still require kmalloc slabs to be available at this point, using kstrdup() for establishing the init_name works fine. This subsequently needs to be tested from dev_name() prior to the init_name being cleared by the driver core. We don't kfree() since others will already have a handle on the string long before the kobject initialization takes place. This is also needed to permit drivers to use the clock framework early, without having to manually construct their own device IDs from the match id/name pair locally (needed by the early console and timer code on sh and arm). Signed-off-by: Paul Mundt Acked-by: Greg Kroah-Hartman --- include/linux/device.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/device.h b/include/linux/device.h index 182192892d45..241b96bcd7ad 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -451,6 +451,10 @@ struct device { static inline const char *dev_name(const struct device *dev) { + /* Use the init name until the kobject becomes available */ + if (dev->init_name) + return dev->init_name; + return kobject_name(&dev->kobj); } -- cgit v1.2.2 From ca037701a025334e724e5c61b3b1082940c8b981 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 2 Mar 2010 19:52:12 +0100 Subject: perf, x86: Add PEBS infrastructure This patch implements support for Intel Precise Event Based Sampling, which is an alternative counter mode in which the counter triggers a hardware assist to collect information on events. The hardware assist takes a trap like snapshot of a subset of the machine registers. This data is written to the Intel Debug-Store, which can be programmed with a data threshold at which to raise a PMI. With the PEBS hardware assist being trap like, the reported IP is always one instruction after the actual instruction that triggered the event. This implements a simple PEBS model that always takes a single PEBS event at a time. This is done so that the interaction with the rest of the system is as expected (freq adjust, period randomization, lbr, callchains, etc.). It adds an ABI element: perf_event_attr::precise, which indicates that we wish to use this (constrained, but precise) mode. Signed-off-by: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100304140100.392111285@chello.nl> Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 80acbf3d5de1..42307b50c787 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -203,8 +203,9 @@ struct perf_event_attr { enable_on_exec : 1, /* next exec enables */ task : 1, /* trace fork/exit */ watermark : 1, /* wakeup_watermark */ + precise : 1, /* OoO invariant counter */ - __reserved_1 : 49; + __reserved_1 : 48; union { __u32 wakeup_events; /* wakeup every n events */ -- cgit v1.2.2 From caff2befffe899e63df5cc760b7ed01cfd902685 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 3 Mar 2010 12:02:30 +0100 Subject: perf, x86: Implement simple LBR support Implement simple suport Intel Last-Branch-Record, it supports all hardware that implements FREEZE_LBRS_ON_PMI, but does not (yet) implement the LBR config register. The Intel LBR is a FIFO of From,To addresses describing the last few branches the hardware took. This patch does not add perf interface to the LBR, but merely provides an interface for internal use. Signed-off-by: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100304140100.544191154@chello.nl> Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 42307b50c787..ab4fd9ede264 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -467,6 +467,17 @@ struct perf_raw_record { void *data; }; +struct perf_branch_entry { + __u64 from; + __u64 to; + __u64 flags; +}; + +struct perf_branch_stack { + __u64 nr; + struct perf_branch_entry entries[0]; +}; + struct task_struct; /** -- cgit v1.2.2 From ef21f683a045a79b6aa86ad81e5fdfc0d5ddd250 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 3 Mar 2010 13:12:23 +0100 Subject: perf, x86: use LBR for PEBS IP+1 fixup Use the LBR to fix up the PEBS IP+1 issue. As said, PEBS reports the next instruction, here we use the LBR to find the last branch and from that construct the actual IP. If the IP matches the LBR-TO, we use LBR-FROM, otherwise we use the LBR-TO address as the beginning of the last basic block and decode forward. Once we find a match to the current IP, we use the previous location. This patch introduces a new ABI element: PERF_RECORD_MISC_EXACT, which conveys that the reported IP (PERF_SAMPLE_IP) is the exact instruction that caused the event (barring CPU errata). The fixup can fail due to various reasons: 1) LBR contains invalid data (quite possible) 2) part of the basic block got paged out 3) the reported IP isn't part of the basic block (see 1) Signed-off-by: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Masami Hiramatsu Cc: "Zhang, Yanmin" Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100304140100.619375431@chello.nl> Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index ab4fd9ede264..be85f7c4a94f 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -294,6 +294,12 @@ struct perf_event_mmap_page { #define PERF_RECORD_MISC_USER (2 << 0) #define PERF_RECORD_MISC_HYPERVISOR (3 << 0) +#define PERF_RECORD_MISC_EXACT (1 << 14) +/* + * Reserve the last bit to indicate some extended misc field + */ +#define PERF_RECORD_MISC_EXT_RESERVED (1 << 15) + struct perf_event_header { __u32 type; __u16 misc; -- cgit v1.2.2 From 41acab8851a0408c1d5ad6c21a07456f88b54d40 Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Wed, 10 Mar 2010 23:37:45 -0300 Subject: sched: Implement group scheduler statistics in one struct Put all statistic fields of sched_entity in one struct, sched_statistics, and embed it into sched_entity. This change allows to memset the sched_statistics to 0 when needed (for instance when forking), avoiding bugs of non initialized fields. Signed-off-by: Lucas De Marchi Signed-off-by: Peter Zijlstra LKML-Reference: <1268275065-18542-1-git-send-email-lucas.de.marchi@gmail.com> Signed-off-by: Ingo Molnar --- include/linux/sched.h | 54 ++++++++++++++++++++++++--------------------------- 1 file changed, 25 insertions(+), 29 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 4b1753f7e48e..8cc863d66477 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1127,36 +1127,8 @@ struct load_weight { unsigned long weight, inv_weight; }; -/* - * CFS stats for a schedulable entity (task, task-group etc) - * - * Current field usage histogram: - * - * 4 se->block_start - * 4 se->run_node - * 4 se->sleep_start - * 6 se->load.weight - */ -struct sched_entity { - struct load_weight load; /* for load-balancing */ - struct rb_node run_node; - struct list_head group_node; - unsigned int on_rq; - - u64 exec_start; - u64 sum_exec_runtime; - u64 vruntime; - u64 prev_sum_exec_runtime; - - u64 last_wakeup; - u64 avg_overlap; - - u64 nr_migrations; - - u64 start_runtime; - u64 avg_wakeup; - #ifdef CONFIG_SCHEDSTATS +struct sched_statistics { u64 wait_start; u64 wait_max; u64 wait_count; @@ -1188,6 +1160,30 @@ struct sched_entity { u64 nr_wakeups_affine_attempts; u64 nr_wakeups_passive; u64 nr_wakeups_idle; +}; +#endif + +struct sched_entity { + struct load_weight load; /* for load-balancing */ + struct rb_node run_node; + struct list_head group_node; + unsigned int on_rq; + + u64 exec_start; + u64 sum_exec_runtime; + u64 vruntime; + u64 prev_sum_exec_runtime; + + u64 last_wakeup; + u64 avg_overlap; + + u64 nr_migrations; + + u64 start_runtime; + u64 avg_wakeup; + +#ifdef CONFIG_SCHEDSTATS + struct sched_statistics statistics; #endif #ifdef CONFIG_FAIR_GROUP_SCHED -- cgit v1.2.2 From 39c0cbe2150cbd848a25ba6cdb271d1ad46818ad Mon Sep 17 00:00:00 2001 From: Mike Galbraith Date: Thu, 11 Mar 2010 17:17:13 +0100 Subject: sched: Rate-limit nohz Entering nohz code on every micro-idle is costing ~10% throughput for netperf TCP_RR when scheduling cross-cpu. Rate limiting entry fixes this, but raises ticks a bit. On my Q6600, an idle box goes from ~85 interrupts/sec to 128. The higher the context switch rate, the more nohz entry costs. With this patch and some cycle recovery patches in my tree, max cross cpu context switch rate is improved by ~16%, a large portion of which of which is this ratelimiting. Signed-off-by: Mike Galbraith Signed-off-by: Peter Zijlstra LKML-Reference: <1268301003.6785.28.camel@marge.simson.net> Signed-off-by: Ingo Molnar --- include/linux/sched.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 8cc863d66477..13efe7dac5fa 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -271,11 +271,17 @@ extern cpumask_var_t nohz_cpu_mask; #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ) extern int select_nohz_load_balancer(int cpu); extern int get_nohz_load_balancer(void); +extern int nohz_ratelimit(int cpu); #else static inline int select_nohz_load_balancer(int cpu) { return 0; } + +static inline int nohz_ratelimit(int cpu) +{ + return 0; +} #endif /* -- cgit v1.2.2 From b42e0c41a422a212ddea0666d5a3a0e3c35206db Mon Sep 17 00:00:00 2001 From: Mike Galbraith Date: Thu, 11 Mar 2010 17:15:38 +0100 Subject: sched: Remove avg_wakeup Testing the load which led to this heuristic (nfs4 kbuild) shows that it has outlived it's usefullness. With intervening load balancing changes, I cannot see any difference with/without, so recover there fastpath cycles. Signed-off-by: Mike Galbraith Signed-off-by: Peter Zijlstra LKML-Reference: <1268301062.6785.29.camel@marge.simson.net> Signed-off-by: Ingo Molnar --- include/linux/sched.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 13efe7dac5fa..70c560f5ada0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1185,9 +1185,6 @@ struct sched_entity { u64 nr_migrations; - u64 start_runtime; - u64 avg_wakeup; - #ifdef CONFIG_SCHEDSTATS struct sched_statistics statistics; #endif -- cgit v1.2.2 From e12f31d3e5d36328c7fbd0fce40a95e70b59152c Mon Sep 17 00:00:00 2001 From: Mike Galbraith Date: Thu, 11 Mar 2010 17:15:51 +0100 Subject: sched: Remove avg_overlap Both avg_overlap and avg_wakeup had an inherent problem in that their accuracy was detrimentally affected by cross-cpu wakeups, this because we are missing the necessary call to update_curr(). This can't be fixed without increasing overhead in our already too fat fastpath. Additionally, with recent load balancing changes making us prefer to place tasks in an idle cache domain (which is good for compute bound loads), communicating tasks suffer when a sync wakeup, which would enable affine placement, is turned into a non-sync wakeup by SYNC_LESS. With one task on the runqueue, wake_affine() rejects the affine wakeup request, leaving the unfortunate where placed, taking frequent cache misses. Remove it, and recover some fastpath cycles. Signed-off-by: Mike Galbraith Signed-off-by: Peter Zijlstra LKML-Reference: <1268301121.6785.30.camel@marge.simson.net> Signed-off-by: Ingo Molnar --- include/linux/sched.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 70c560f5ada0..8604884cee87 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1180,9 +1180,6 @@ struct sched_entity { u64 vruntime; u64 prev_sum_exec_runtime; - u64 last_wakeup; - u64 avg_overlap; - u64 nr_migrations; #ifdef CONFIG_SCHEDSTATS -- cgit v1.2.2 From ca26308c2223cb424c297a70fb7b6c7530a563ba Mon Sep 17 00:00:00 2001 From: Miguel Aguilar Date: Thu, 11 Mar 2010 09:32:21 -0600 Subject: MFD: DaVinci Voice Codec This is the MFD driver for the DaVinci Voice codec, it has two clients: * Voice codec interface * Voice codec CQ93VC Signed-off-by: Miguel Aguilar Acked-by: Samuel Ortiz Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- include/linux/mfd/davinci_voicecodec.h | 126 +++++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 include/linux/mfd/davinci_voicecodec.h (limited to 'include/linux') diff --git a/include/linux/mfd/davinci_voicecodec.h b/include/linux/mfd/davinci_voicecodec.h new file mode 100644 index 000000000000..0ab61320ffa8 --- /dev/null +++ b/include/linux/mfd/davinci_voicecodec.h @@ -0,0 +1,126 @@ +/* + * DaVinci Voice Codec Core Interface for TI platforms + * + * Copyright (C) 2010 Texas Instruments, Inc + * + * Author: Miguel Aguilar + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __LINUX_MFD_DAVINCI_VOICECODEC_H_ +#define __LINUX_MFD_DAVINIC_VOICECODEC_H_ + +#include +#include +#include + +#include + +/* + * Register values. + */ +#define DAVINCI_VC_PID 0x00 +#define DAVINCI_VC_CTRL 0x04 +#define DAVINCI_VC_INTEN 0x08 +#define DAVINCI_VC_INTSTATUS 0x0c +#define DAVINCI_VC_INTCLR 0x10 +#define DAVINCI_VC_EMUL_CTRL 0x14 +#define DAVINCI_VC_RFIFO 0x20 +#define DAVINCI_VC_WFIFO 0x24 +#define DAVINCI_VC_FIFOSTAT 0x28 +#define DAVINCI_VC_TST_CTRL 0x2C +#define DAVINCI_VC_REG05 0x94 +#define DAVINCI_VC_REG09 0xA4 +#define DAVINCI_VC_REG12 0xB0 + +/* DAVINCI_VC_CTRL bit fields */ +#define DAVINCI_VC_CTRL_MASK 0x5500 +#define DAVINCI_VC_CTRL_RSTADC BIT(0) +#define DAVINCI_VC_CTRL_RSTDAC BIT(1) +#define DAVINCI_VC_CTRL_RD_BITS_8 BIT(4) +#define DAVINCI_VC_CTRL_RD_UNSIGNED BIT(5) +#define DAVINCI_VC_CTRL_WD_BITS_8 BIT(6) +#define DAVINCI_VC_CTRL_WD_UNSIGNED BIT(7) +#define DAVINCI_VC_CTRL_RFIFOEN BIT(8) +#define DAVINCI_VC_CTRL_RFIFOCL BIT(9) +#define DAVINCI_VC_CTRL_RFIFOMD_WORD_1 BIT(10) +#define DAVINCI_VC_CTRL_WFIFOEN BIT(12) +#define DAVINCI_VC_CTRL_WFIFOCL BIT(13) +#define DAVINCI_VC_CTRL_WFIFOMD_WORD_1 BIT(14) + +/* DAVINCI_VC_INT bit fields */ +#define DAVINCI_VC_INT_MASK 0x3F +#define DAVINCI_VC_INT_RDRDY_MASK BIT(0) +#define DAVINCI_VC_INT_RERROVF_MASK BIT(1) +#define DAVINCI_VC_INT_RERRUDR_MASK BIT(2) +#define DAVINCI_VC_INT_WDREQ_MASK BIT(3) +#define DAVINCI_VC_INT_WERROVF_MASKBIT BIT(4) +#define DAVINCI_VC_INT_WERRUDR_MASK BIT(5) + +/* DAVINCI_VC_REG05 bit fields */ +#define DAVINCI_VC_REG05_PGA_GAIN 0x07 + +/* DAVINCI_VC_REG09 bit fields */ +#define DAVINCI_VC_REG09_MUTE 0x40 +#define DAVINCI_VC_REG09_DIG_ATTEN 0x3F + +/* DAVINCI_VC_REG12 bit fields */ +#define DAVINCI_VC_REG12_POWER_ALL_ON 0xFD +#define DAVINCI_VC_REG12_POWER_ALL_OFF 0x00 + +#define DAVINCI_VC_CELLS 2 + +enum davinci_vc_cells { + DAVINCI_VC_VCIF_CELL, + DAVINCI_VC_CQ93VC_CELL, +}; + +struct davinci_vcif { + struct platform_device *pdev; + u32 dma_tx_channel; + u32 dma_rx_channel; + dma_addr_t dma_tx_addr; + dma_addr_t dma_rx_addr; +}; + +struct cq93vc { + struct platform_device *pdev; + struct snd_soc_codec *codec; + u32 sysclk; +}; + +struct davinci_vc; + +struct davinci_vc { + /* Device data */ + struct device *dev; + struct platform_device *pdev; + struct clk *clk; + + /* Memory resources */ + void __iomem *base; + resource_size_t pbase; + size_t base_size; + + /* MFD cells */ + struct mfd_cell cells[DAVINCI_VC_CELLS]; + + /* Client devices */ + struct davinci_vcif davinci_vcif; + struct cq93vc cq93vc; +}; + +#endif -- cgit v1.2.2 From 7e847894039d7590321de306fca2b1ae58662f29 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 11 Mar 2010 21:13:20 +0100 Subject: linux/usb/audio.h: split header - Split the audio.h file in two to clearly denote the differences between the standards. - Add many more defines to audio-v2.h. Most of them are not currently used. - Replaced a magic value with a proper define Signed-off-by: Daniel Mack Acked-by: Greg Kroah-Hartman Cc: Clemens Ladisch Signed-off-by: Takashi Iwai --- include/linux/usb/audio-v2.h | 319 +++++++++++++++++++++++++++++++++++++++++++ include/linux/usb/audio.h | 50 +------ 2 files changed, 326 insertions(+), 43 deletions(-) create mode 100644 include/linux/usb/audio-v2.h (limited to 'include/linux') diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h new file mode 100644 index 000000000000..3b8560d233bd --- /dev/null +++ b/include/linux/usb/audio-v2.h @@ -0,0 +1,319 @@ +/* + * Copyright (c) 2010 Daniel Mack + * + * This software is distributed under the terms of the GNU General Public + * License ("GPL") version 2, as published by the Free Software Foundation. + * + * This file holds USB constants and structures defined + * by the USB Device Class Definition for Audio Devices in version 2.0. + * Comments below reference relevant sections of the documents contained + * in http://www.usb.org/developers/devclass_docs/Audio2.0_final.zip + */ + +#ifndef __LINUX_USB_AUDIO_V2_H +#define __LINUX_USB_AUDIO_V2_H + +#include + +/* v1.0 and v2.0 of this standard have many things in common. For the rest + * of the definitions, please refer to audio.h */ + +/* 4.7.2.1 Clock Source Descriptor */ + +struct uac_clock_source_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __u8 bClockID; + __u8 bmAttributes; + __u8 bmControls; + __u8 bAssocTerminal; + __u8 iClockSource; +} __attribute__((packed)); + +/* 4.7.2.2 Clock Source Descriptor */ + +struct uac_clock_selector_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __u8 bClockID; + __u8 bNrInPins; + __u8 bmControls; + __u8 baCSourceID[]; +} __attribute__((packed)); + +/* 4.9.2 Class-Specific AS Interface Descriptor */ + +struct uac_as_header_descriptor_v2 { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __u8 bTerminalLink; + __u8 bmControls; + __u8 bFormatType; + __u32 bmFormats; + __u8 bNrChannels; + __u32 bmChannelConfig; + __u8 iChannelNames; +} __attribute__((packed)); + + +/* A.7 Audio Function Category Codes */ +#define UAC2_FUNCTION_SUBCLASS_UNDEFINED 0x00 +#define UAC2_FUNCTION_DESKTOP_SPEAKER 0x01 +#define UAC2_FUNCTION_HOME_THEATER 0x02 +#define UAC2_FUNCTION_MICROPHONE 0x03 +#define UAC2_FUNCTION_HEADSET 0x04 +#define UAC2_FUNCTION_TELEPHONE 0x05 +#define UAC2_FUNCTION_CONVERTER 0x06 +#define UAC2_FUNCTION_SOUND_RECORDER 0x07 +#define UAC2_FUNCTION_IO_BOX 0x08 +#define UAC2_FUNCTION_MUSICAL_INSTRUMENT 0x09 +#define UAC2_FUNCTION_PRO_AUDIO 0x0a +#define UAC2_FUNCTION_AUDIO_VIDEO 0x0b +#define UAC2_FUNCTION_CONTROL_PANEL 0x0c +#define UAC2_FUNCTION_OTHER 0xff + +/* A.9 Audio Class-Specific AC Interface Descriptor Subtypes */ +/* see audio.h for the rest, which is identical to v1 */ +#define UAC2_EFFECT_UNIT 0x07 +#define UAC2_PROCESSING_UNIT_V2 0x08 +#define UAC2_EXTENSION_UNIT_V2 0x09 +#define UAC2_CLOCK_SOURCE 0x0a +#define UAC2_CLOCK_SELECTOR 0x0b +#define UAC2_CLOCK_MULTIPLIER 0x0c +#define UAC2_SAMPLE_RATE_CONVERTER 0x0d + +/* A.10 Audio Class-Specific AS Interface Descriptor Subtypes */ +/* see audio.h for the rest, which is identical to v1 */ +#define UAC2_ENCODER 0x03 +#define UAC2_DECODER 0x04 + +/* A.11 Effect Unit Effect Types */ +#define UAC2_EFFECT_UNDEFINED 0x00 +#define UAC2_EFFECT_PARAM_EQ 0x01 +#define UAC2_EFFECT_REVERB 0x02 +#define UAC2_EFFECT_MOD_DELAY 0x03 +#define UAC2_EFFECT_DYN_RANGE_COMP 0x04 + +/* A.12 Processing Unit Process Types */ +#define UAC2_PROCESS_UNDEFINED 0x00 +#define UAC2_PROCESS_UP_DOWNMIX 0x01 +#define UAC2_PROCESS_DOLBY_PROLOCIC 0x02 +#define UAC2_PROCESS_STEREO_EXTENDER 0x03 + +/* A.14 Audio Class-Specific Request Codes */ +#define UAC2_CS_CUR 0x01 +#define UAC2_CS_RANGE 0x02 + +/* A.15 Encoder Type Codes */ +#define UAC2_ENCODER_UNDEFINED 0x00 +#define UAC2_ENCODER_OTHER 0x01 +#define UAC2_ENCODER_MPEG 0x02 +#define UAC2_ENCODER_AC3 0x03 +#define UAC2_ENCODER_WMA 0x04 +#define UAC2_ENCODER_DTS 0x05 + +/* A.16 Decoder Type Codes */ +#define UAC2_DECODER_UNDEFINED 0x00 +#define UAC2_DECODER_OTHER 0x01 +#define UAC2_DECODER_MPEG 0x02 +#define UAC2_DECODER_AC3 0x03 +#define UAC2_DECODER_WMA 0x04 +#define UAC2_DECODER_DTS 0x05 + +/* A.17.1 Clock Source Control Selectors */ +#define UAC2_CS_UNDEFINED 0x00 +#define UAC2_CS_CONTROL_SAM_FREQ 0x01 +#define UAC2_CS_CONTROL_CLOCK_VALID 0x02 + +/* A.17.2 Clock Selector Control Selectors */ +#define UAC2_CX_UNDEFINED 0x00 +#define UAC2_CX_CLOCK_SELECTOR 0x01 + +/* A.17.3 Clock Multiplier Control Selectors */ +#define UAC2_CM_UNDEFINED 0x00 +#define UAC2_CM_NUMERATOR 0x01 +#define UAC2_CM_DENOMINTATOR 0x02 + +/* A.17.4 Terminal Control Selectors */ +#define UAC2_TE_UNDEFINED 0x00 +#define UAC2_TE_COPY_PROTECT 0x01 +#define UAC2_TE_CONNECTOR 0x02 +#define UAC2_TE_OVERLOAD 0x03 +#define UAC2_TE_CLUSTER 0x04 +#define UAC2_TE_UNDERFLOW 0x05 +#define UAC2_TE_OVERFLOW 0x06 +#define UAC2_TE_LATENCY 0x07 + +/* A.17.5 Mixer Control Selectors */ +#define UAC2_MU_UNDEFINED 0x00 +#define UAC2_MU_MIXER 0x01 +#define UAC2_MU_CLUSTER 0x02 +#define UAC2_MU_UNDERFLOW 0x03 +#define UAC2_MU_OVERFLOW 0x04 +#define UAC2_MU_LATENCY 0x05 + +/* A.17.6 Selector Control Selectors */ +#define UAC2_SU_UNDEFINED 0x00 +#define UAC2_SU_SELECTOR 0x01 +#define UAC2_SU_LATENCY 0x02 + +/* A.17.7 Feature Unit Control Selectors */ +/* see audio.h for the rest, which is identical to v1 */ +#define UAC2_FU_INPUT_GAIN 0x0b +#define UAC2_FU_INPUT_GAIN_PAD 0x0c +#define UAC2_FU_PHASE_INVERTER 0x0d +#define UAC2_FU_UNDERFLOW 0x0e +#define UAC2_FU_OVERFLOW 0x0f +#define UAC2_FU_LATENCY 0x10 + +/* A.17.8.1 Parametric Equalizer Section Effect Unit Control Selectors */ +#define UAC2_PE_UNDEFINED 0x00 +#define UAC2_PE_ENABLE 0x01 +#define UAC2_PE_CENTERFREQ 0x02 +#define UAC2_PE_QFACTOR 0x03 +#define UAC2_PE_GAIN 0x04 +#define UAC2_PE_UNDERFLOW 0x05 +#define UAC2_PE_OVERFLOW 0x06 +#define UAC2_PE_LATENCY 0x07 + +/* A.17.8.2 Reverberation Effect Unit Control Selectors */ +#define UAC2_RV_UNDEFINED 0x00 +#define UAC2_RV_ENABLE 0x01 +#define UAC2_RV_TYPE 0x02 +#define UAC2_RV_LEVEL 0x03 +#define UAC2_RV_TIME 0x04 +#define UAC2_RV_FEEDBACK 0x05 +#define UAC2_RV_PREDELAY 0x06 +#define UAC2_RV_DENSITY 0x07 +#define UAC2_RV_HIFREQ_ROLLOFF 0x08 +#define UAC2_RV_UNDERFLOW 0x09 +#define UAC2_RV_OVERFLOW 0x0a +#define UAC2_RV_LATENCY 0x0b + +/* A.17.8.3 Modulation Delay Effect Control Selectors */ +#define UAC2_MD_UNDEFINED 0x00 +#define UAC2_MD_ENABLE 0x01 +#define UAC2_MD_BALANCE 0x02 +#define UAC2_MD_RATE 0x03 +#define UAC2_MD_DEPTH 0x04 +#define UAC2_MD_TIME 0x05 +#define UAC2_MD_FEEDBACK 0x06 +#define UAC2_MD_UNDERFLOW 0x07 +#define UAC2_MD_OVERFLOW 0x08 +#define UAC2_MD_LATENCY 0x09 + +/* A.17.8.4 Dynamic Range Compressor Effect Unit Control Selectors */ +#define UAC2_DR_UNDEFINED 0x00 +#define UAC2_DR_ENABLE 0x01 +#define UAC2_DR_COMPRESSION_RATE 0x02 +#define UAC2_DR_MAXAMPL 0x03 +#define UAC2_DR_THRESHOLD 0x04 +#define UAC2_DR_ATTACK_TIME 0x05 +#define UAC2_DR_RELEASE_TIME 0x06 +#define UAC2_DR_UNDEFLOW 0x07 +#define UAC2_DR_OVERFLOW 0x08 +#define UAC2_DR_LATENCY 0x09 + +/* A.17.9.1 Up/Down-mix Processing Unit Control Selectors */ +#define UAC2_UD_UNDEFINED 0x00 +#define UAC2_UD_ENABLE 0x01 +#define UAC2_UD_MODE_SELECT 0x02 +#define UAC2_UD_CLUSTER 0x03 +#define UAC2_UD_UNDERFLOW 0x04 +#define UAC2_UD_OVERFLOW 0x05 +#define UAC2_UD_LATENCY 0x06 + +/* A.17.9.2 Dolby Prologic[tm] Processing Unit Control Selectors */ +#define UAC2_DP_UNDEFINED 0x00 +#define UAC2_DP_ENABLE 0x01 +#define UAC2_DP_MODE_SELECT 0x02 +#define UAC2_DP_CLUSTER 0x03 +#define UAC2_DP_UNDERFFLOW 0x04 +#define UAC2_DP_OVERFLOW 0x05 +#define UAC2_DP_LATENCY 0x06 + +/* A.17.9.3 Stereo Expander Processing Unit Control Selectors */ +#define UAC2_ST_EXT_UNDEFINED 0x00 +#define UAC2_ST_EXT_ENABLE 0x01 +#define UAC2_ST_EXT_WIDTH 0x02 +#define UAC2_ST_EXT_UNDEFLOW 0x03 +#define UAC2_ST_EXT_OVERFLOW 0x04 +#define UAC2_ST_EXT_LATENCY 0x05 + +/* A.17.10 Extension Unit Control Selectors */ +#define UAC2_XU_UNDEFINED 0x00 +#define UAC2_XU_ENABLE 0x01 +#define UAC2_XU_CLUSTER 0x02 +#define UAC2_XU_UNDERFLOW 0x03 +#define UAC2_XU_OVERFLOW 0x04 +#define UAC2_XU_LATENCY 0x05 + +/* A.17.11 AudioStreaming Interface Control Selectors */ +#define UAC2_AS_UNDEFINED 0x00 +#define UAC2_AS_ACT_ALT_SETTING 0x01 +#define UAC2_AS_VAL_ALT_SETTINGS 0x02 +#define UAC2_AS_AUDIO_DATA_FORMAT 0x03 + +/* A.17.12 Encoder Control Selectors */ +#define UAC2_EN_UNDEFINED 0x00 +#define UAC2_EN_BIT_RATE 0x01 +#define UAC2_EN_QUALITY 0x02 +#define UAC2_EN_VBR 0x03 +#define UAC2_EN_TYPE 0x04 +#define UAC2_EN_UNDERFLOW 0x05 +#define UAC2_EN_OVERFLOW 0x06 +#define UAC2_EN_ENCODER_ERROR 0x07 +#define UAC2_EN_PARAM1 0x08 +#define UAC2_EN_PARAM2 0x09 +#define UAC2_EN_PARAM3 0x0a +#define UAC2_EN_PARAM4 0x0b +#define UAC2_EN_PARAM5 0x0c +#define UAC2_EN_PARAM6 0x0d +#define UAC2_EN_PARAM7 0x0e +#define UAC2_EN_PARAM8 0x0f + +/* A.17.13.1 MPEG Decoder Control Selectors */ +#define UAC2_MPEG_UNDEFINED 0x00 +#define UAC2_MPEG_DUAL_CHANNEL 0x01 +#define UAC2_MPEG_SECOND_STEREO 0x02 +#define UAC2_MPEG_MULTILINGUAL 0x03 +#define UAC2_MPEG_DYN_RANGE 0x04 +#define UAC2_MPEG_SCALING 0x05 +#define UAC2_MPEG_HILO_SCALING 0x06 +#define UAC2_MPEG_UNDERFLOW 0x07 +#define UAC2_MPEG_OVERFLOW 0x08 +#define UAC2_MPEG_DECODER_ERROR 0x09 + +/* A17.13.2 AC3 Decoder Control Selectors */ +#define UAC2_AC3_UNDEFINED 0x00 +#define UAC2_AC3_MODE 0x01 +#define UAC2_AC3_DYN_RANGE 0x02 +#define UAC2_AC3_SCALING 0x03 +#define UAC2_AC3_HILO_SCALING 0x04 +#define UAC2_AC3_UNDERFLOW 0x05 +#define UAC2_AC3_OVERFLOW 0x06 +#define UAC2_AC3_DECODER_ERROR 0x07 + +/* A17.13.3 WMA Decoder Control Selectors */ +#define UAC2_WMA_UNDEFINED 0x00 +#define UAC2_WMA_UNDERFLOW 0x01 +#define UAC2_WMA_OVERFLOW 0x02 +#define UAC2_WMA_DECODER_ERROR 0x03 + +/* A17.13.4 DTS Decoder Control Selectors */ +#define UAC2_DTS_UNDEFINED 0x00 +#define UAC2_DTS_UNDERFLOW 0x01 +#define UAC2_DTS_OVERFLOW 0x02 +#define UAC2_DTS_DECODER_ERROR 0x03 + +/* A17.14 Endpoint Control Selectors */ +#define UAC2_EP_CS_UNDEFINED 0x00 +#define UAC2_EP_CS_PITCH 0x01 +#define UAC2_EP_CS_DATA_OVERRUN 0x02 +#define UAC2_EP_CS_DATA_UNDERRUN 0x03 + +#endif /* __LINUX_USB_AUDIO_V2_H */ + diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h index 4d3e450e2b03..cdad728543ae 100644 --- a/include/linux/usb/audio.h +++ b/include/linux/usb/audio.h @@ -13,6 +13,9 @@ * Comments below reference relevant sections of that document: * * http://www.usb.org/developers/devclass_docs/audio10.pdf + * + * Types and defines in this file are either specific to version 1.0 of + * this standard or common for newer versions. */ #ifndef __LINUX_USB_AUDIO_H @@ -20,14 +23,15 @@ #include +/* bInterfaceProtocol values to denote the version of the standard used */ +#define UAC_VERSION_1 0x00 +#define UAC_VERSION_2 0x20 + /* A.2 Audio Interface Subclass Codes */ #define USB_SUBCLASS_AUDIOCONTROL 0x01 #define USB_SUBCLASS_AUDIOSTREAMING 0x02 #define USB_SUBCLASS_MIDISTREAMING 0x03 -#define UAC_VERSION_1 0x00 -#define UAC_VERSION_2 0x20 - /* A.5 Audio Class-Specific AC Interface Descriptor Subtypes */ #define UAC_HEADER 0x01 #define UAC_INPUT_TERMINAL 0x02 @@ -38,15 +42,6 @@ #define UAC_PROCESSING_UNIT_V1 0x07 #define UAC_EXTENSION_UNIT_V1 0x08 -/* UAC v2.0 types */ -#define UAC_EFFECT_UNIT 0x07 -#define UAC_PROCESSING_UNIT_V2 0x08 -#define UAC_EXTENSION_UNIT_V2 0x09 -#define UAC_CLOCK_SOURCE 0x0a -#define UAC_CLOCK_SELECTOR 0x0b -#define UAC_CLOCK_MULTIPLIER 0x0c -#define UAC_SAMPLE_RATE_CONVERTER 0x0d - /* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */ #define UAC_AS_GENERAL 0x01 #define UAC_FORMAT_TYPE 0x02 @@ -78,10 +73,6 @@ #define UAC_GET_STAT 0xff -/* Audio class v2.0 handles all the parameter calls differently */ -#define UAC2_CS_CUR 0x01 -#define UAC2_CS_RANGE 0x02 - /* MIDI - A.1 MS Class-Specific Interface Descriptor Subtypes */ #define UAC_MS_HEADER 0x01 #define UAC_MIDI_IN_JACK 0x02 @@ -200,19 +191,6 @@ struct uac_as_header_descriptor_v1 { __le16 wFormatTag; /* The Audio Data Format */ } __attribute__ ((packed)); -struct uac_as_header_descriptor_v2 { - __u8 bLength; - __u8 bDescriptorType; - __u8 bDescriptorSubtype; - __u8 bTerminalLink; - __u8 bmControls; - __u8 bFormatType; - __u32 bmFormats; - __u8 bNrChannels; - __u32 bmChannelConfig; - __u8 iChannelNames; -} __attribute__((packed)); - #define UAC_DT_AS_HEADER_SIZE 7 /* Formats - A.1.1 Audio Data Format Type I Codes */ @@ -277,7 +255,6 @@ struct uac_format_type_i_ext_descriptor { __u8 bSideBandProtocol; } __attribute__((packed)); - /* Formats - Audio Data Format Type I Codes */ #define UAC_FORMAT_TYPE_II_MPEG 0x1001 @@ -336,19 +313,6 @@ struct uac_iso_endpoint_descriptor { #define UAC_EP_CS_ATTR_PITCH_CONTROL 0x02 #define UAC_EP_CS_ATTR_FILL_MAX 0x80 -/* Audio class v2.0: CLOCK_SOURCE descriptor */ - -struct uac_clock_source_descriptor { - __u8 bLength; - __u8 bDescriptorType; - __u8 bDescriptorSubtype; - __u8 bClockID; - __u8 bmAttributes; - __u8 bmControls; - __u8 bAssocTerminal; - __u8 iClockSource; -} __attribute__((packed)); - /* A.10.2 Feature Unit Control Selectors */ struct uac_feature_unit_descriptor { -- cgit v1.2.2 From 99fc86450c439039d2ef88d06b222fd51a779176 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 11 Mar 2010 21:13:24 +0100 Subject: ALSA: usb-mixer: parse descriptors with structs Introduce a number of new structs for mixer, selector, feature and processing units and some static inline helpers to access fields which have dynamic offsets. Use them in mixer.c to parse the descriptors. This is necessary for the upcoming audio v2 parsers. Signed-off-by: Daniel Mack Cc: Clemens Ladisch Signed-off-by: Takashi Iwai --- include/linux/usb/audio.h | 129 ++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 119 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h index cdad728543ae..bc78a83d0f48 100644 --- a/include/linux/usb/audio.h +++ b/include/linux/usb/audio.h @@ -181,6 +181,125 @@ struct uac_feature_unit_descriptor_##ch { \ __u8 iFeature; \ } __attribute__ ((packed)) +/* 4.3.2.3 Mixer Unit Descriptor */ +struct uac_mixer_unit_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __u8 bUnitID; + __u8 bNrInPins; + __u8 baSourceID[]; +} __attribute__ ((packed)); + +static inline __u8 uac_mixer_unit_bNrChannels(struct uac_mixer_unit_descriptor *desc) +{ + return desc->baSourceID[desc->bNrInPins]; +} + +static inline __u16 uac_mixer_unit_wChannelConfig(struct uac_mixer_unit_descriptor *desc) +{ + return (desc->baSourceID[desc->bNrInPins + 2] << 8) | + desc->baSourceID[desc->bNrInPins + 1]; +} + +static inline __u8 uac_mixer_unit_iChannelNames(struct uac_mixer_unit_descriptor *desc) +{ + return desc->baSourceID[desc->bNrInPins + 3]; +} + +static inline __u8 *uac_mixer_unit_bmControls(struct uac_mixer_unit_descriptor *desc) +{ + return &desc->baSourceID[desc->bNrInPins + 4]; +} + +static inline __u8 uac_mixer_unit_iMixer(struct uac_mixer_unit_descriptor *desc) +{ + __u8 *raw = (__u8 *) desc; + return raw[desc->bLength - 1]; +} + +/* 4.3.2.4 Selector Unit Descriptor */ +struct uac_selector_unit_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __u8 bUintID; + __u8 bNrInPins; + __u8 baSourceID[]; +} __attribute__ ((packed)); + +static inline __u8 uac_selector_unit_iSelector(struct uac_selector_unit_descriptor *desc) +{ + __u8 *raw = (__u8 *) desc; + return raw[desc->bLength - 1]; +} + +/* 4.3.2.5 Feature Unit Descriptor */ +struct uac_feature_unit_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __u8 bUnitID; + __u8 bSourceID; + __u8 bControlSize; + __u8 bmaControls[0]; /* variable length */ +} __attribute__((packed)); + +static inline __u8 uac_feature_unit_iFeature(struct uac_feature_unit_descriptor *desc) +{ + __u8 *raw = (__u8 *) desc; + return raw[desc->bLength - 1]; +} + +/* 4.3.2.6 Processing Unit Descriptors */ +struct uac_processing_unit_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __u8 bUnitID; + __u16 wProcessType; + __u8 bNrInPins; + __u8 baSourceID[]; +} __attribute__ ((packed)); + +static inline __u8 uac_processing_unit_bNrChannels(struct uac_processing_unit_descriptor *desc) +{ + return desc->baSourceID[desc->bNrInPins]; +} + +static inline __u16 uac_processing_unit_wChannelConfig(struct uac_processing_unit_descriptor *desc) +{ + return (desc->baSourceID[desc->bNrInPins + 2] << 8) | + desc->baSourceID[desc->bNrInPins + 1]; +} + +static inline __u8 uac_processing_unit_iChannelNames(struct uac_processing_unit_descriptor *desc) +{ + return desc->baSourceID[desc->bNrInPins + 3]; +} + +static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_descriptor *desc) +{ + return desc->baSourceID[desc->bNrInPins + 4]; +} + +static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc) +{ + return &desc->baSourceID[desc->bNrInPins + 5]; +} + +static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc) +{ + __u8 control_size = uac_processing_unit_bControlSize(desc); + return desc->baSourceID[desc->bNrInPins + control_size]; +} + +static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc) +{ + __u8 control_size = uac_processing_unit_bControlSize(desc); + return &desc->baSourceID[desc->bNrInPins + control_size + 1]; +} + /* 4.5.2 Class-Specific AS Interface Descriptor */ struct uac_as_header_descriptor_v1 { __u8 bLength; /* in bytes: 7 */ @@ -315,16 +434,6 @@ struct uac_iso_endpoint_descriptor { /* A.10.2 Feature Unit Control Selectors */ -struct uac_feature_unit_descriptor { - __u8 bLength; - __u8 bDescriptorType; - __u8 bDescriptorSubtype; - __u8 bUnitID; - __u8 bSourceID; - __u8 bControlSize; - __u8 controls[0]; /* variable length */ -} __attribute__((packed)); - #define UAC_