- 根目录:
- drivers
- usb
- misc
- sisusbvga
- sisusb.h
/*
* sisusb - usb kernel driver for Net2280/SiS315 based USB2VGA dongles
*
* Copyright (C) 2005 by Thomas Winischhofer, Vienna, Austria
*
* If distributed as part of the Linux kernel, this code is licensed under the
* terms of the GPL v2.
*
* Otherwise, the following license terms apply:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1) Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2) Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3) The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESSED OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Author: Thomas Winischhofer <thomas@winischhofer.net>
*
*/
#ifndef _SISUSB_H_
#define _SISUSB_H_
#ifdef CONFIG_COMPAT
#define SISUSB_NEW_CONFIG_COMPAT
#endif
#include <linux/mutex.h>
/* For older kernels, support for text consoles is by default
* off. To enable text console support, change the following:
*/
/* #define CONFIG_USB_SISUSBVGA_CON */
/* Version Information */
#define SISUSB_VERSION 0
#define SISUSB_REVISION 0
#define SISUSB_PATCHLEVEL 8
/* Include console and mode switching code? */
#ifdef CONFIG_USB_SISUSBVGA_CON
#define INCL_SISUSB_CON 1
#endif
#include <linux/console.h>
#include <linux/vt_kern.h>
#include "sisusb_struct.h"
/* USB related */
#define SISUSB_MINOR 133 /* official */
/* Size of the sisusb input/output buffers */
#define SISUSB_IBUF_SIZE 0x01000
#define SISUSB_OBUF_SIZE 0x10000 /* fixed */
#define NUMOBUFS 8 /* max number of output buffers/output URBs */
/* About endianness:
*
* 1) I/O ports, PCI config registers. The read/write()
* calls emulate inX/outX. Hence, the data is
* expected/delivered in machine endiannes by this
* driver.
* 2) Video memory. The data is copied 1:1. There is
* no swapping. Ever. This means for userland that
* the data has to be prepared properly. (Hint:
* think graphics data format, command queue,
* hardware cursor.)
* 3) MMIO. Data is copied 1:1. MMIO must be swapped
* properly by userland.
*
*/
#ifdef __BIG_ENDIAN
#define SISUSB_CORRECT_ENDIANNESS_PACKET(p) \
do { \
p->header = cpu_to_le16(p->header); \
p->address = cpu_to_le32(p->address); \
p->data = cpu_to_le32(p->data); \
} while(0)
#else
#define SISUSB_CORRECT_ENDIANNESS_PACKET(p)
#endif
struct sisusb_usb_data;
struct sisusb_urb_context { /* urb->context for outbound bulk URBs */
struct sisusb_usb_data *sisusb;
int urbindex;
int *actual_length;
};
struct sisusb_usb_data {
struct usb_device *sisusb_dev;
struct usb_interface *interface;
struct kref kref;
wait_queue_head_t wait_q; /* for syncind and timeouts */
struct mutex lock; /* general race avoidance */
unsigned int ifnum; /* interface number of the USB device */
int minor; /* minor (for logging clarity) */
int isopen; /* !=0 if open */
int present; /* !=0 if device is present on the bus */
int ready; /* !=0 if device is ready for userland */
int numobufs; /* number of obufs = number of out urbs */
char *obuf[NUMOBUFS], *ibuf; /* transfer buffers */
int obufsize, ibufsize;
struct urb *sisurbout[NUMOBUFS];
struct urb *sisurbin;
unsigned char urbstatus[NUMOBUFS];
unsigned char completein;
struct sisusb_urb_context urbout_context[NUMOBUFS];
unsigned long flagb0;
unsigned long vrambase; /* framebuffer base */
unsigned int vramsize; /* framebuffer size (bytes) */
unsigned long mmiobase;
unsigned int mmiosize;
unsigned long ioportbase;
unsigned char devinit; /* device initialized? */
unsigned char gfxinit; /* graphics core initialized? */
unsigned short chipid, chipvendor;
unsigned short chiprevision;
#ifdef INCL_SISUSB_CON
struct SiS_Private *SiS_Pr;
unsigned long scrbuf;
unsigned int scrbuf_size;
int haveconsole, con_first, con_last;
int havethisconsole[MAX_NR_CONSOLES];
int textmodedestroyed;
unsigned int sisusb_num_columns; /* real number, not vt's idea */
int cur_start_addr, con_rolled_over;
int sisusb_cursor_loc, bad_cursor_pos;
int sisusb_cursor_size_from;
int sisusb_cursor_size_to;
int current_font_height, current_font_512;
int font_backup_size, font_backup_height, font_backup_512;
char *font_backup;
int font_slot;
struct vc_data *sisusb_display_fg;
int is_gfx;
int con_blanked;
#endif
};
#define to_sisusb_dev(d) container_of(d, struct sisusb_usb_data, kref)
/* USB transport related */
/* urbstatus */
#define SU_URB_BUSY 1
#define SU_URB_ALLOC 2
/* Endpoints */
#define SISUSB_EP_GFX_IN 0x0e /* gfx std packet out(0e)/in(8e) */
#define SISUSB_EP_GFX_OUT 0x0e
#define SISUSB_EP_GFX_BULK_OUT 0x01 /* gfx mem bulk out/in */
#define SISUSB_EP_GFX_BULK_IN 0x02 /* ? 2 is "OUT" ? */
#define SISUSB_EP_GFX_LBULK_OUT 0x03 /* gfx large mem bulk out */
#define SISUSB_EP_UNKNOWN_04 0x04 /* ? 4 is "OUT" ? - unused */
#define SISUSB_EP_BRIDGE_IN 0x0d /* Net2280 out(0d)/in(8d) */
#define SISUSB_EP_BRIDGE_OUT 0x0d
#define SISUSB_TYPE_MEM 0
#define SISUSB_TYPE_IO 1
struct sisusb_packet {
unsigned short header;
u32 address;
u32 data;
} __attribute__ ((__packed__));
#define CLEARPACKET(packet) memset(packet, 0, 10)
/* PCI bridge related */
#define SISUSB_PCI_MEMBASE 0xd0000000
#define SISUSB_PCI_MMIOBASE 0xe4000000
#define SISUSB_PCI_IOPORTBASE 0x0000d000
#define SISUSB_PCI_PSEUDO_MEMBASE 0x10000000
#define SISUSB_PCI_PSEUDO_MMIOBASE 0x20000000
#define SISUSB_PCI_PSEUDO_IOPORTBASE 0x0000d000
#define SISUSB_PCI_PSEUDO_PCIBASE 0x00010000
#define SISUSB_PCI_MMIOSIZE (128*1024)
#define SISUSB_PCI_PCONFSIZE 0x5c
/* graphics core related */
#define AROFFSET 0x40
#define ARROFFSET 0x41
#define GROFFSET 0x4e
#define SROFFSET 0x44
#define CROFFSET 0x54
#define MISCROFFSET 0x4c
#define MISCWOFFSET 0x42
#define INPUTSTATOFFSET 0x5A
#define PART1OFFSET 0x04
#define PART2OFFSET 0x10
#define PART3OFFSET 0x12
#define PART4OFFSET 0x14
#define PART5OFFSET 0x16
#define CAPTUREOFFSET 0x00
#define VIDEOOFFSET 0x02
#define COLREGOFFSET 0x48
#define PELMASKOFFSET 0x46
#define VGAENABLE 0x43
#define SISAR SISUSB_PCI_IOPORTBASE + AROFFSET
#define SISARR SISUSB_PCI_IOPORTBASE + ARROFFSET
#define SISGR SISUSB_PCI_IOPORTBASE + GROFFSET
#define SISSR SISUSB_PCI_IOPORTBASE + SROFFSET
#define SISCR SISUSB_PCI_IOPORTBASE + CROFFSET
#define SISMISCR SISUSB_PCI_IOPORTBASE + MISCROFFSET
#define SISMISCW SISUSB_PCI_IOPORTBASE + MISCWOFFSET
#define SISINPSTAT SISUSB_PCI_IOPORTBASE + INPUTSTATOFFSET
#define SISPART1 SISUSB_PCI_IOPORTBASE + PART1OFFSET
#define SISPART2 SISUSB_PCI_IOPORTBASE + PART2OFFSET
#define SISPART3 SISUSB_PCI_IOPORTBASE + PART3OFFSET
#define SISPART4 SISUSB_PCI_IOPORTBASE + PART4OFFSET
#define SISPART5 SISUSB_PCI_IOPORTBASE + PART5OFFSET
#define SISCAP SISUSB_PCI_IOPORTBASE + CAPTUREOFFSET
#define SISVID SISUSB_PCI_IOPORTBASE + VIDEOOFFSET
#define SISCOLIDXR SISUSB_PCI_IOPORTBASE + COLREGOFFSET - 1
#define SISCOLIDX SISUSB_PCI_IOPORTBASE + COLREGOFFSET
#define SISCOLDATA SISUSB_PCI_IOPORTBASE + COLREGOFFSET + 1
#define SISCOL2IDX SISPART5
#define SISCOL2DATA SISPART5 + 1
#define SISPEL SISUSB_PCI_IOPORTBASE + PELMASKOFFSET
#define SISVGAEN SISUSB_PCI_IOPORTBASE + VGAENABLE
#define SISDACA SISCOLIDX
#define SISDACD SISCOLDATA
/* ioctl related */
/* Structure argument for SISUSB_GET_INFO ioctl */
struct sisusb_info {
__u32 sisusb_id; /* for identifying sisusb */
#define SISUSB_ID 0x53495355 /* Identify myself with 'SISU' */
__u8 sisusb_version;
__u8 sisusb_revision;
__u8 sisusb_patchlevel;
__u8 sisusb_gfxinit; /* graphics core initialized? */
__u32 sisusb_vrambase;
__u32 sisusb_mmiobase;
__u32 sisusb_iobase;
__u32 sisusb_pcibase;
__u32 sisusb_vramsize; /* framebuffer size in bytes */
__u32 sisusb_minor;
__u32 sisusb_fbdevactive; /* != 0 if framebuffer device active */
__u32 sisusb_conactive; /* != 0 if console driver active */
__u8 sisusb_reserved[28]; /* for future use */
};
struct sisusb_command {
__u8 operation; /* see below */
__u8 data0; /* operation dependent */
__u8 data1; /* operation dependent */
__u8 data2; /* operation dependent */
__u32 data3; /* operation dependent */
__u32 data4; /* for future use */
};
#define SUCMD_GET 0x01 /* for all: data0 = index, data3 = port */
#define SUCMD_SET 0x02 /* data1 = value */
#define SUCMD_SETOR 0x03 /* data1 = or */
#define SUCMD_SETAND 0x04 /* data1 = and */
#define SUCMD_SETANDOR 0x05 /* data1 = and, data2 = or */
#define SUCMD_SETMASK 0x06 /* data1 = data, data2 = mask */
#define SUCMD_CLRSCR 0x07 /* data0:1:2 = length, data3 = address */
#define SUCMD_HANDLETEXTMODE 0x08 /* Reset/destroy text mode */
#define SUCMD_SETMODE 0x09 /* Set a display mode (data3 = SiS mode) */
#define SUCMD_SETVESAMODE 0x0a /* Set a display mode (data3 = VESA mode) */
#define SISUSB_COMMAND _IOWR(0xF3,0x3D,struct sisusb_command)
#define SISUSB_GET_CONFIG_SIZE _IOR(0xF3,0x3E,__u32)
#define SISUSB_GET_CONFIG _IOR(0xF3,0x3F,struct sisusb_info)
#endif /* SISUSB_H */