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299 lines
9.5 KiB
299 lines
9.5 KiB
/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ |
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/* |
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* sisusb - usb kernel driver for Net2280/SiS315 based USB2VGA dongles |
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* |
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* Copyright (C) 2005 by Thomas Winischhofer, Vienna, Austria |
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* |
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* If distributed as part of the Linux kernel, this code is licensed under the |
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* terms of the GPL v2. |
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* |
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* Otherwise, the following license terms apply: |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1) Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2) Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3) The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESSED OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* Author: Thomas Winischhofer <[email protected]> |
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* |
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*/ |
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#ifndef _SISUSB_H_ |
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#define _SISUSB_H_ |
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#include <linux/mutex.h> |
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/* Version Information */ |
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#define SISUSB_VERSION 0 |
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#define SISUSB_REVISION 0 |
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#define SISUSB_PATCHLEVEL 8 |
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/* Include console and mode switching code? */ |
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#include <linux/console.h> |
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#include <linux/vt_kern.h> |
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#include "sisusb_struct.h" |
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/* USB related */ |
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#define SISUSB_MINOR 133 /* official */ |
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/* Size of the sisusb input/output buffers */ |
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#define SISUSB_IBUF_SIZE 0x01000 |
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#define SISUSB_OBUF_SIZE 0x10000 /* fixed */ |
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#define NUMOBUFS 8 /* max number of output buffers/output URBs */ |
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/* About endianness: |
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* |
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* 1) I/O ports, PCI config registers. The read/write() |
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* calls emulate inX/outX. Hence, the data is |
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* expected/delivered in machine endiannes by this |
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* driver. |
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* 2) Video memory. The data is copied 1:1. There is |
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* no swapping. Ever. This means for userland that |
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* the data has to be prepared properly. (Hint: |
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* think graphics data format, command queue, |
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* hardware cursor.) |
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* 3) MMIO. Data is copied 1:1. MMIO must be swapped |
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* properly by userland. |
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* |
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*/ |
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#ifdef __BIG_ENDIAN |
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#define SISUSB_CORRECT_ENDIANNESS_PACKET(p) \ |
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do { \ |
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p->header = cpu_to_le16(p->header); \ |
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p->address = cpu_to_le32(p->address); \ |
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p->data = cpu_to_le32(p->data); \ |
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} while(0) |
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#else |
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#define SISUSB_CORRECT_ENDIANNESS_PACKET(p) |
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#endif |
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struct sisusb_usb_data; |
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struct sisusb_urb_context { /* urb->context for outbound bulk URBs */ |
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struct sisusb_usb_data *sisusb; |
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int urbindex; |
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int *actual_length; |
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}; |
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struct sisusb_usb_data { |
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struct usb_device *sisusb_dev; |
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struct usb_interface *interface; |
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struct kref kref; |
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wait_queue_head_t wait_q; /* for syncind and timeouts */ |
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struct mutex lock; /* general race avoidance */ |
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unsigned int ifnum; /* interface number of the USB device */ |
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int minor; /* minor (for logging clarity) */ |
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int isopen; /* !=0 if open */ |
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int present; /* !=0 if device is present on the bus */ |
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int ready; /* !=0 if device is ready for userland */ |
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int numobufs; /* number of obufs = number of out urbs */ |
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char *obuf[NUMOBUFS], *ibuf; /* transfer buffers */ |
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int obufsize, ibufsize; |
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struct urb *sisurbout[NUMOBUFS]; |
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struct urb *sisurbin; |
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unsigned char urbstatus[NUMOBUFS]; |
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unsigned char completein; |
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struct sisusb_urb_context urbout_context[NUMOBUFS]; |
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unsigned long flagb0; |
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unsigned long vrambase; /* framebuffer base */ |
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unsigned int vramsize; /* framebuffer size (bytes) */ |
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unsigned long mmiobase; |
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unsigned int mmiosize; |
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unsigned long ioportbase; |
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unsigned char devinit; /* device initialized? */ |
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unsigned char gfxinit; /* graphics core initialized? */ |
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unsigned short chipid, chipvendor; |
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unsigned short chiprevision; |
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#ifdef CONFIG_USB_SISUSBVGA_CON |
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struct SiS_Private *SiS_Pr; |
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unsigned long scrbuf; |
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unsigned int scrbuf_size; |
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int haveconsole, con_first, con_last; |
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int havethisconsole[MAX_NR_CONSOLES]; |
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int textmodedestroyed; |
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unsigned int sisusb_num_columns; /* real number, not vt's idea */ |
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int cur_start_addr, con_rolled_over; |
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int sisusb_cursor_loc, bad_cursor_pos; |
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int sisusb_cursor_size_from; |
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int sisusb_cursor_size_to; |
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int current_font_height, current_font_512; |
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int font_backup_size, font_backup_height, font_backup_512; |
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char *font_backup; |
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int font_slot; |
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struct vc_data *sisusb_display_fg; |
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int is_gfx; |
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int con_blanked; |
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#endif |
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}; |
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#define to_sisusb_dev(d) container_of(d, struct sisusb_usb_data, kref) |
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/* USB transport related */ |
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/* urbstatus */ |
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#define SU_URB_BUSY 1 |
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#define SU_URB_ALLOC 2 |
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/* Endpoints */ |
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#define SISUSB_EP_GFX_IN 0x0e /* gfx std packet out(0e)/in(8e) */ |
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#define SISUSB_EP_GFX_OUT 0x0e |
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#define SISUSB_EP_GFX_BULK_OUT 0x01 /* gfx mem bulk out/in */ |
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#define SISUSB_EP_GFX_BULK_IN 0x02 /* ? 2 is "OUT" ? */ |
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#define SISUSB_EP_GFX_LBULK_OUT 0x03 /* gfx large mem bulk out */ |
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#define SISUSB_EP_UNKNOWN_04 0x04 /* ? 4 is "OUT" ? - unused */ |
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#define SISUSB_EP_BRIDGE_IN 0x0d /* Net2280 out(0d)/in(8d) */ |
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#define SISUSB_EP_BRIDGE_OUT 0x0d |
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#define SISUSB_TYPE_MEM 0 |
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#define SISUSB_TYPE_IO 1 |
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struct sisusb_packet { |
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unsigned short header; |
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u32 address; |
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u32 data; |
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} __attribute__ ((__packed__)); |
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#define CLEARPACKET(packet) memset(packet, 0, 10) |
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/* PCI bridge related */ |
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#define SISUSB_PCI_MEMBASE 0xd0000000 |
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#define SISUSB_PCI_MMIOBASE 0xe4000000 |
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#define SISUSB_PCI_IOPORTBASE 0x0000d000 |
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#define SISUSB_PCI_PSEUDO_MEMBASE 0x10000000 |
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#define SISUSB_PCI_PSEUDO_MMIOBASE 0x20000000 |
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#define SISUSB_PCI_PSEUDO_IOPORTBASE 0x0000d000 |
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#define SISUSB_PCI_PSEUDO_PCIBASE 0x00010000 |
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#define SISUSB_PCI_MMIOSIZE (128*1024) |
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#define SISUSB_PCI_PCONFSIZE 0x5c |
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/* graphics core related */ |
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#define AROFFSET 0x40 |
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#define ARROFFSET 0x41 |
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#define GROFFSET 0x4e |
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#define SROFFSET 0x44 |
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#define CROFFSET 0x54 |
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#define MISCROFFSET 0x4c |
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#define MISCWOFFSET 0x42 |
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#define INPUTSTATOFFSET 0x5A |
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#define PART1OFFSET 0x04 |
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#define PART2OFFSET 0x10 |
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#define PART3OFFSET 0x12 |
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#define PART4OFFSET 0x14 |
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#define PART5OFFSET 0x16 |
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#define CAPTUREOFFSET 0x00 |
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#define VIDEOOFFSET 0x02 |
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#define COLREGOFFSET 0x48 |
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#define PELMASKOFFSET 0x46 |
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#define VGAENABLE 0x43 |
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#define SISAR SISUSB_PCI_IOPORTBASE + AROFFSET |
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#define SISARR SISUSB_PCI_IOPORTBASE + ARROFFSET |
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#define SISGR SISUSB_PCI_IOPORTBASE + GROFFSET |
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#define SISSR SISUSB_PCI_IOPORTBASE + SROFFSET |
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#define SISCR SISUSB_PCI_IOPORTBASE + CROFFSET |
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#define SISMISCR SISUSB_PCI_IOPORTBASE + MISCROFFSET |
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#define SISMISCW SISUSB_PCI_IOPORTBASE + MISCWOFFSET |
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#define SISINPSTAT SISUSB_PCI_IOPORTBASE + INPUTSTATOFFSET |
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#define SISPART1 SISUSB_PCI_IOPORTBASE + PART1OFFSET |
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#define SISPART2 SISUSB_PCI_IOPORTBASE + PART2OFFSET |
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#define SISPART3 SISUSB_PCI_IOPORTBASE + PART3OFFSET |
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#define SISPART4 SISUSB_PCI_IOPORTBASE + PART4OFFSET |
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#define SISPART5 SISUSB_PCI_IOPORTBASE + PART5OFFSET |
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#define SISCAP SISUSB_PCI_IOPORTBASE + CAPTUREOFFSET |
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#define SISVID SISUSB_PCI_IOPORTBASE + VIDEOOFFSET |
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#define SISCOLIDXR SISUSB_PCI_IOPORTBASE + COLREGOFFSET - 1 |
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#define SISCOLIDX SISUSB_PCI_IOPORTBASE + COLREGOFFSET |
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#define SISCOLDATA SISUSB_PCI_IOPORTBASE + COLREGOFFSET + 1 |
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#define SISCOL2IDX SISPART5 |
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#define SISCOL2DATA SISPART5 + 1 |
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#define SISPEL SISUSB_PCI_IOPORTBASE + PELMASKOFFSET |
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#define SISVGAEN SISUSB_PCI_IOPORTBASE + VGAENABLE |
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#define SISDACA SISCOLIDX |
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#define SISDACD SISCOLDATA |
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/* ioctl related */ |
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/* Structure argument for SISUSB_GET_INFO ioctl */ |
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struct sisusb_info { |
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__u32 sisusb_id; /* for identifying sisusb */ |
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#define SISUSB_ID 0x53495355 /* Identify myself with 'SISU' */ |
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__u8 sisusb_version; |
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__u8 sisusb_revision; |
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__u8 sisusb_patchlevel; |
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__u8 sisusb_gfxinit; /* graphics core initialized? */ |
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__u32 sisusb_vrambase; |
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__u32 sisusb_mmiobase; |
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__u32 sisusb_iobase; |
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__u32 sisusb_pcibase; |
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__u32 sisusb_vramsize; /* framebuffer size in bytes */ |
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__u32 sisusb_minor; |
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__u32 sisusb_fbdevactive; /* != 0 if framebuffer device active */ |
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__u32 sisusb_conactive; /* != 0 if console driver active */ |
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__u8 sisusb_reserved[28]; /* for future use */ |
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}; |
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struct sisusb_command { |
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__u8 operation; /* see below */ |
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__u8 data0; /* operation dependent */ |
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__u8 data1; /* operation dependent */ |
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__u8 data2; /* operation dependent */ |
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__u32 data3; /* operation dependent */ |
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__u32 data4; /* for future use */ |
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}; |
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#define SUCMD_GET 0x01 /* for all: data0 = index, data3 = port */ |
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#define SUCMD_SET 0x02 /* data1 = value */ |
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#define SUCMD_SETOR 0x03 /* data1 = or */ |
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#define SUCMD_SETAND 0x04 /* data1 = and */ |
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#define SUCMD_SETANDOR 0x05 /* data1 = and, data2 = or */ |
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#define SUCMD_SETMASK 0x06 /* data1 = data, data2 = mask */ |
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#define SUCMD_CLRSCR 0x07 /* data0:1:2 = length, data3 = address */ |
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#define SUCMD_HANDLETEXTMODE 0x08 /* Reset/destroy text mode */ |
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#define SUCMD_SETMODE 0x09 /* Set a display mode (data3 = SiS mode) */ |
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#define SUCMD_SETVESAMODE 0x0a /* Set a display mode (data3 = VESA mode) */ |
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#define SISUSB_COMMAND _IOWR(0xF3,0x3D,struct sisusb_command) |
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#define SISUSB_GET_CONFIG_SIZE _IOR(0xF3,0x3E,__u32) |
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#define SISUSB_GET_CONFIG _IOR(0xF3,0x3F,struct sisusb_info) |
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#endif /* SISUSB_H */
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