diff options
author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2011-07-16 12:54:22 +0800 |
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committer | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2011-07-18 07:57:49 +0800 |
commit | 126c9b69cf6241673e0ccecc542ed3b9935308df (patch) | |
tree | da48f9af736913ca9805c140024f06dcf01d5b34 /include | |
parent | f4f952faa4047bfeb80ba6b960d331724807d52a (diff) | |
download | barebox-126c9b69cf6241673e0ccecc542ed3b9935308df.tar.gz barebox-126c9b69cf6241673e0ccecc542ed3b9935308df.tar.xz |
device: introduce resource structure to simplify resource declaration
and add multi resource per device support
for now we keep the old map_base and size temporary but will switch all of
the used step by step to them resource way
and mirror the first resource to the map_base and size if available
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/driver.h | 4 | ||||
-rw-r--r-- | include/linux/ioport.h | 115 |
2 files changed, 119 insertions, 0 deletions
diff --git a/include/driver.h b/include/driver.h index 6a4d45e3ec..ed3df16f7c 100644 --- a/include/driver.h +++ b/include/driver.h @@ -24,6 +24,7 @@ #define DRIVER_H #include <linux/list.h> +#include <linux/ioport.h> #define MAX_DRIVER_NAME 32 #define FORMAT_DRIVER_MANE_ID "%s%d" @@ -76,6 +77,9 @@ struct device_d { * Flash or SDRAM. */ resource_size_t map_base; + struct resource *resource; + int num_resources; + void *platform_data; /*! board specific information about this device */ /*! Devices of a particular class normaly need to store more diff --git a/include/linux/ioport.h b/include/linux/ioport.h new file mode 100644 index 0000000000..51431158d3 --- /dev/null +++ b/include/linux/ioport.h @@ -0,0 +1,115 @@ +/* + * ioport.h Definitions of routines for detecting, reserving and + * allocating system resources. + * + * Authors: Linus Torvalds + */ + +#ifndef _LINUX_IOPORT_H +#define _LINUX_IOPORT_H + +#ifndef __ASSEMBLY__ +#include <linux/compiler.h> +#include <linux/types.h> +/* + * Resources are tree-like, allowing + * nesting etc.. + */ +struct resource { + resource_size_t start; + resource_size_t size; + const char *name; + unsigned long flags; +}; + +/* + * IO resources have these defined flags. + */ +#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ + +#define IORESOURCE_TYPE_BITS 0x00001f00 /* Resource type */ +#define IORESOURCE_IO 0x00000100 +#define IORESOURCE_MEM 0x00000200 +#define IORESOURCE_IRQ 0x00000400 +#define IORESOURCE_DMA 0x00000800 +#define IORESOURCE_BUS 0x00001000 + +#define IORESOURCE_PREFETCH 0x00002000 /* No side effects */ +#define IORESOURCE_READONLY 0x00004000 +#define IORESOURCE_CACHEABLE 0x00008000 +#define IORESOURCE_RANGELENGTH 0x00010000 +#define IORESOURCE_SHADOWABLE 0x00020000 + +#define IORESOURCE_SIZEALIGN 0x00040000 /* size indicates alignment */ +#define IORESOURCE_STARTALIGN 0x00080000 /* start field is alignment */ + +#define IORESOURCE_MEM_64 0x00100000 +#define IORESOURCE_WINDOW 0x00200000 /* forwarded by bridge */ +#define IORESOURCE_MUXED 0x00400000 /* Resource is software muxed */ + +#define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */ +#define IORESOURCE_DISABLED 0x10000000 +#define IORESOURCE_UNSET 0x20000000 +#define IORESOURCE_AUTO 0x40000000 +#define IORESOURCE_BUSY 0x80000000 /* Driver has marked this resource busy */ + +/* PnP IRQ specific bits (IORESOURCE_BITS) */ +#define IORESOURCE_IRQ_HIGHEDGE (1<<0) +#define IORESOURCE_IRQ_LOWEDGE (1<<1) +#define IORESOURCE_IRQ_HIGHLEVEL (1<<2) +#define IORESOURCE_IRQ_LOWLEVEL (1<<3) +#define IORESOURCE_IRQ_SHAREABLE (1<<4) +#define IORESOURCE_IRQ_OPTIONAL (1<<5) + +/* PnP DMA specific bits (IORESOURCE_BITS) */ +#define IORESOURCE_DMA_TYPE_MASK (3<<0) +#define IORESOURCE_DMA_8BIT (0<<0) +#define IORESOURCE_DMA_8AND16BIT (1<<0) +#define IORESOURCE_DMA_16BIT (2<<0) + +#define IORESOURCE_DMA_MASTER (1<<2) +#define IORESOURCE_DMA_BYTE (1<<3) +#define IORESOURCE_DMA_WORD (1<<4) + +#define IORESOURCE_DMA_SPEED_MASK (3<<6) +#define IORESOURCE_DMA_COMPATIBLE (0<<6) +#define IORESOURCE_DMA_TYPEA (1<<6) +#define IORESOURCE_DMA_TYPEB (2<<6) +#define IORESOURCE_DMA_TYPEF (3<<6) + +/* PnP memory I/O specific bits (IORESOURCE_BITS) */ +#define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */ +#define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */ +#define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */ +#define IORESOURCE_MEM_TYPE_MASK (3<<3) +#define IORESOURCE_MEM_8BIT (0<<3) +#define IORESOURCE_MEM_16BIT (1<<3) +#define IORESOURCE_MEM_8AND16BIT (2<<3) +#define IORESOURCE_MEM_32BIT (3<<3) +#define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */ +#define IORESOURCE_MEM_EXPANSIONROM (1<<6) + +/* PnP I/O specific bits (IORESOURCE_BITS) */ +#define IORESOURCE_IO_16BIT_ADDR (1<<0) +#define IORESOURCE_IO_FIXED (1<<1) + +/* PCI ROM control bits (IORESOURCE_BITS) */ +#define IORESOURCE_ROM_ENABLE (1<<0) /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */ +#define IORESOURCE_ROM_SHADOW (1<<1) /* ROM is copy at C000:0 */ +#define IORESOURCE_ROM_COPY (1<<2) /* ROM is alloc'd copy, resource field overlaid */ +#define IORESOURCE_ROM_BIOS_COPY (1<<3) /* ROM is BIOS copy, resource field overlaid */ + +/* PCI control bits. Shares IORESOURCE_BITS with above PCI ROM. */ +#define IORESOURCE_PCI_FIXED (1<<4) /* Do not move resource */ + +static inline resource_size_t resource_size(const struct resource *res) +{ + return res->size; +} +static inline unsigned long resource_type(const struct resource *res) +{ + return res->flags & IORESOURCE_TYPE_BITS; +} + +#endif /* __ASSEMBLY__ */ +#endif /* _LINUX_IOPORT_H */ |