diff options
Diffstat (limited to 'drivers/usb/misc/sisusbvga/sisusb.h')
| -rw-r--r-- | drivers/usb/misc/sisusbvga/sisusb.h | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/drivers/usb/misc/sisusbvga/sisusb.h b/drivers/usb/misc/sisusbvga/sisusb.h new file mode 100644 index 000000000..20f03ad0e --- /dev/null +++ b/drivers/usb/misc/sisusbvga/sisusb.h @@ -0,0 +1,312 @@ +// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +/* + * 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 */ |