diff options
Diffstat (limited to 'driver/pciDriver.h')
| -rw-r--r-- | driver/pciDriver.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/driver/pciDriver.h b/driver/pciDriver.h new file mode 100644 index 0000000..9abf3ab --- /dev/null +++ b/driver/pciDriver.h @@ -0,0 +1,180 @@ +#ifndef PCIDRIVER_H_ +#define PCIDRIVER_H_ + +/** + * This is a full rewrite of the pciDriver. + * New default is to support kernel 2.6, using kernel 2.6 APIs. + * + * This header defines the interface to the outside world. + * + * $Revision: 1.6 $ + * $Date: 2008-01-24 14:21:36 $ + * + */ + +/* + * Change History: + * + * $Log: not supported by cvs2svn $ + * Revision 1.5 2008-01-11 10:15:14 marcus + * Removed unused interrupt code. + * Added intSource to the wait interrupt call. + * + * Revision 1.4 2006/11/17 18:44:42 marcus + * Type of SG list can now be selected at runtime. Added type to sglist. + * + * Revision 1.3 2006/11/17 16:23:02 marcus + * Added slot number to the PCI info IOctl. + * + * Revision 1.2 2006/11/13 12:29:09 marcus + * Added a IOctl call, to confiure the interrupt response. (testing pending). + * Basic interrupts are now supported. + * + * Revision 1.1 2006/10/10 14:46:52 marcus + * Initial commit of the new pciDriver for kernel 2.6 + * + * Revision 1.7 2006/10/06 15:18:06 marcus + * Updated PCI info and PCI cmd + * + * Revision 1.6 2006/09/25 16:51:07 marcus + * Added PCI config IOctls, and implemented basic mmap functions. + * + * Revision 1.5 2006/09/18 17:13:12 marcus + * backup commit. + * + * Revision 1.4 2006/09/15 15:44:41 marcus + * backup commit. + * + * Revision 1.3 2006/08/15 11:40:02 marcus + * backup commit. + * + * Revision 1.2 2006/08/12 18:28:42 marcus + * Sync with the laptop + * + * Revision 1.1 2006/08/11 15:30:46 marcus + * Sync with the laptop + * + */ + +#include <linux/ioctl.h> + +/* Possible values for ioctl commands */ + +/* PCI mmap areas */ +#define PCIDRIVER_BAR0 0 +#define PCIDRIVER_BAR1 1 +#define PCIDRIVER_BAR2 2 +#define PCIDRIVER_BAR3 3 +#define PCIDRIVER_BAR4 4 +#define PCIDRIVER_BAR5 5 + +/* mmap mode of the device */ +#define PCIDRIVER_MMAP_PCI 0 +#define PCIDRIVER_MMAP_KMEM 1 + +/* Direction of a DMA operation */ +#define PCIDRIVER_DMA_BIDIRECTIONAL 0 +#define PCIDRIVER_DMA_TODEVICE 1 +#define PCIDRIVER_DMA_FROMDEVICE 2 + +/* Possible sizes in a PCI command */ +#define PCIDRIVER_PCI_CFG_SZ_BYTE 1 +#define PCIDRIVER_PCI_CFG_SZ_WORD 2 +#define PCIDRIVER_PCI_CFG_SZ_DWORD 3 + +/* Possible types of SG lists */ +#define PCIDRIVER_SG_NONMERGED 0 +#define PCIDRIVER_SG_MERGED 1 + +/* Maximum number of interrupt sources */ +#define PCIDRIVER_INT_MAXSOURCES 16 + +/* Types */ +typedef struct { + unsigned long pa; + unsigned long size; + int handle_id; +} kmem_handle_t; + +typedef struct { + unsigned long addr; + unsigned long size; +} umem_sgentry_t; + +typedef struct { + int handle_id; + int type; + int nents; + umem_sgentry_t *sg; +} umem_sglist_t; + +typedef struct { + unsigned long vma; + unsigned long size; + int handle_id; + int dir; +} umem_handle_t; + +typedef struct { + kmem_handle_t handle; + int dir; +} kmem_sync_t; + + +typedef struct { + int size; + int addr; + union { + unsigned char byte; + unsigned short word; + unsigned int dword; /* not strict C, but if not can have problems */ + } val; +} pci_cfg_cmd; + +typedef struct { + unsigned short vendor_id; + unsigned short device_id; + unsigned short bus; + unsigned short slot; + unsigned short devfn; + unsigned char interrupt_pin; + unsigned char interrupt_line; + unsigned int irq; + unsigned long bar_start[6]; + unsigned long bar_length[6]; +} pci_board_info; + + +/* ioctl interface */ +/* See documentation for a detailed usage explanation */ + +/* + * one of the problems of ioctl, is that requires a type definition. + * This type is only 8-bits wide, and half-documented in + * <linux-src>/Documentation/ioctl-number.txt. + * previous SHL -> 'S' definition, conflicts with several devices, + * so I changed it to be pci -> 'p', in the range 0xA0-AF + */ +#define PCIDRIVER_IOC_MAGIC 'p' +#define PCIDRIVER_IOC_BASE 0xA0 + +#define PCIDRIVER_IOC_MMAP_MODE _IO( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 0 ) +#define PCIDRIVER_IOC_MMAP_AREA _IO( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 1 ) +#define PCIDRIVER_IOC_KMEM_ALLOC _IOWR( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 2, kmem_handle_t * ) +#define PCIDRIVER_IOC_KMEM_FREE _IOW( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 3, kmem_handle_t * ) +#define PCIDRIVER_IOC_KMEM_SYNC _IOW( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 4, kmem_sync_t * ) +#define PCIDRIVER_IOC_UMEM_SGMAP _IOWR( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 5, umem_handle_t * ) +#define PCIDRIVER_IOC_UMEM_SGUNMAP _IOW( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 6, umem_handle_t * ) +#define PCIDRIVER_IOC_UMEM_SGGET _IOWR( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 7, umem_sglist_t * ) +#define PCIDRIVER_IOC_UMEM_SYNC _IOW( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 8, umem_handle_t * ) +#define PCIDRIVER_IOC_WAITI _IO( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 9 ) + +/* And now, the methods to access the PCI configuration area */ +#define PCIDRIVER_IOC_PCI_CFG_RD _IOWR( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 10, pci_cfg_cmd * ) +#define PCIDRIVER_IOC_PCI_CFG_WR _IOWR( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 11, pci_cfg_cmd * ) +#define PCIDRIVER_IOC_PCI_INFO _IOWR( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 12, pci_board_info * ) + +/* Clear interrupt queues */ +#define PCIDRIVER_IOC_CLEAR_IOQ _IO( PCIDRIVER_IOC_MAGIC, PCIDRIVER_IOC_BASE + 13 ) + +#endif |