From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 8.mo4.mail-out.ovh.net ([188.165.33.112] helo=mo4.mail-out.ovh.net) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Qi2dP-0000jB-27 for barebox@lists.infradead.org; Sat, 16 Jul 2011 11:02:14 +0000 Received: from mail187.ha.ovh.net (b9.ovh.net [213.186.33.59]) by mo4.mail-out.ovh.net (Postfix) with SMTP id 88618FFA00C for ; Sat, 16 Jul 2011 13:02:32 +0200 (CEST) From: Jean-Christophe PLAGNIOL-VILLARD Date: Sat, 16 Jul 2011 12:45:26 +0200 Message-Id: <1310813132-4151-1-git-send-email-plagnioj@jcrosoft.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 1/7] device: introduce resource structure to simplify resource declaration To: barebox@lists.infradead.org Cc: Patrice Vilchez , Nicolas Ferre 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 Cc: Nicolas Ferre Cc: Patrice Vilchez --- include/driver.h | 4 ++ include/linux/ioport.h | 115 ++++++++++++++++++++++++++++++++++++++++++++++++ lib/driver.c | 9 ++++ 3 files changed, 128 insertions(+), 0 deletions(-) create mode 100644 include/linux/ioport.h diff --git a/include/driver.h b/include/driver.h index 6a4d45e..ed3df16 100644 --- a/include/driver.h +++ b/include/driver.h @@ -24,6 +24,7 @@ #define DRIVER_H #include +#include #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 0000000..5143115 --- /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 +#include +/* + * 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 */ diff --git a/lib/driver.c b/lib/driver.c index 4c10a49..ee5e850 100644 --- a/lib/driver.c +++ b/lib/driver.c @@ -103,6 +103,15 @@ int register_device(struct device_d *new_device) { struct driver_d *drv; + /* if no map_base available use the first resource if available + * so we do not need to duplicate it + * Temporary fixup until we get rid of map_base and size + */ + if (new_device->map_base == 0 && new_device->resource) { + new_device->map_base = new_device->resource[0].start; + new_device->size = new_device->resource[0].size; + } + if (new_device->id < 0) { new_device->id = get_free_deviceid(new_device->name); } else { -- 1.7.5.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox