2 * sisusb - usb kernel driver for Net2280/SiS315 based USB2VGA dongles
4 * Copyright (C) 2005 by Thomas Winischhofer, Vienna, Austria
6 * If distributed as part of the Linux kernel, this code is licensed under the
9 * Otherwise, the following license terms apply:
11 * * Redistribution and use in source and binary forms, with or without
12 * * modification, are permitted provided that the following conditions
14 * * 1) Redistributions of source code must retain the above copyright
15 * * notice, this list of conditions and the following disclaimer.
16 * * 2) Redistributions in binary form must reproduce the above copyright
17 * * notice, this list of conditions and the following disclaimer in the
18 * * documentation and/or other materials provided with the distribution.
19 * * 3) The name of the author may not be used to endorse or promote products
20 * * derived from this software without specific prior written permission.
22 * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESSED OR
23 * * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * Author: Thomas Winischhofer <thomas@winischhofer.net>
41 #define SISUSB_NEW_CONFIG_COMPAT
44 #include <linux/mutex.h>
46 /* For older kernels, support for text consoles is by default
47 * off. To ensable text console support, change the following:
50 #define CONFIG_USB_SISUSBVGA_CON
53 /* Version Information */
55 #define SISUSB_VERSION 0
56 #define SISUSB_REVISION 0
57 #define SISUSB_PATCHLEVEL 8
59 /* Include console and mode switching code? */
61 #ifdef CONFIG_USB_SISUSBVGA_CON
62 #define INCL_SISUSB_CON 1
65 #include <linux/console.h>
66 #include <linux/vt_kern.h>
67 #include "sisusb_struct.h"
71 #define SISUSB_MINOR 133 /* official */
73 /* Size of the sisusb input/output buffers */
74 #define SISUSB_IBUF_SIZE 0x01000
75 #define SISUSB_OBUF_SIZE 0x10000 /* fixed */
77 #define NUMOBUFS 8 /* max number of output buffers/output URBs */
81 * 1) I/O ports, PCI config registers. The read/write()
82 * calls emulate inX/outX. Hence, the data is
83 * expected/delivered in machine endiannes by this
85 * 2) Video memory. The data is copied 1:1. There is
86 * no swapping. Ever. This means for userland that
87 * the data has to be prepared properly. (Hint:
88 * think graphics data format, command queue,
90 * 3) MMIO. Data is copied 1:1. MMIO must be swapped
91 * properly by userland.
96 #define SISUSB_CORRECT_ENDIANNESS_PACKET(p) \
98 p->header = cpu_to_le16(p->header); \
99 p->address = cpu_to_le32(p->address); \
100 p->data = cpu_to_le32(p->data); \
103 #define SISUSB_CORRECT_ENDIANNESS_PACKET(p)
106 struct sisusb_usb_data;
108 struct sisusb_urb_context { /* urb->context for outbound bulk URBs */
109 struct sisusb_usb_data *sisusb;
114 struct sisusb_usb_data {
115 struct usb_device *sisusb_dev;
116 struct usb_interface *interface;
118 wait_queue_head_t wait_q; /* for syncind and timeouts */
119 struct mutex lock; /* general race avoidance */
120 unsigned int ifnum; /* interface number of the USB device */
121 int minor; /* minor (for logging clarity) */
122 int isopen; /* !=0 if open */
123 int present; /* !=0 if device is present on the bus */
124 int ready; /* !=0 if device is ready for userland */
125 #ifdef SISUSB_OLD_CONFIG_COMPAT
126 int ioctl32registered;
128 int numobufs; /* number of obufs = number of out urbs */
129 char *obuf[NUMOBUFS], *ibuf; /* transfer buffers */
130 int obufsize, ibufsize;
131 dma_addr_t transfer_dma_out[NUMOBUFS];
132 dma_addr_t transfer_dma_in;
133 struct urb *sisurbout[NUMOBUFS];
134 struct urb *sisurbin;
135 unsigned char urbstatus[NUMOBUFS];
136 unsigned char completein;
137 struct sisusb_urb_context urbout_context[NUMOBUFS];
138 unsigned long flagb0;
139 unsigned long vrambase; /* framebuffer base */
140 unsigned int vramsize; /* framebuffer size (bytes) */
141 unsigned long mmiobase;
142 unsigned int mmiosize;
143 unsigned long ioportbase;
144 unsigned char devinit; /* device initialized? */
145 unsigned char gfxinit; /* graphics core initialized? */
146 unsigned short chipid, chipvendor;
147 unsigned short chiprevision;
148 #ifdef INCL_SISUSB_CON
149 struct SiS_Private *SiS_Pr;
150 unsigned long scrbuf;
151 unsigned int scrbuf_size;
152 int haveconsole, con_first, con_last;
153 int havethisconsole[MAX_NR_CONSOLES];
154 int textmodedestroyed;
155 unsigned int sisusb_num_columns; /* real number, not vt's idea */
156 int cur_start_addr, con_rolled_over;
157 int sisusb_cursor_loc, bad_cursor_pos;
158 int sisusb_cursor_size_from;
159 int sisusb_cursor_size_to;
160 int current_font_height, current_font_512;
161 int font_backup_size, font_backup_height, font_backup_512;
164 struct vc_data *sisusb_display_fg;
170 #define to_sisusb_dev(d) container_of(d, struct sisusb_usb_data, kref)
172 /* USB transport related */
175 #define SU_URB_BUSY 1
176 #define SU_URB_ALLOC 2
180 #define SISUSB_EP_GFX_IN 0x0e /* gfx std packet out(0e)/in(8e) */
181 #define SISUSB_EP_GFX_OUT 0x0e
183 #define SISUSB_EP_GFX_BULK_OUT 0x01 /* gfx mem bulk out/in */
184 #define SISUSB_EP_GFX_BULK_IN 0x02 /* ? 2 is "OUT" ? */
186 #define SISUSB_EP_GFX_LBULK_OUT 0x03 /* gfx large mem bulk out */
188 #define SISUSB_EP_UNKNOWN_04 0x04 /* ? 4 is "OUT" ? - unused */
190 #define SISUSB_EP_BRIDGE_IN 0x0d /* Net2280 out(0d)/in(8d) */
191 #define SISUSB_EP_BRIDGE_OUT 0x0d
193 #define SISUSB_TYPE_MEM 0
194 #define SISUSB_TYPE_IO 1
196 struct sisusb_packet {
197 unsigned short header;
200 } __attribute__((__packed__));
202 #define CLEARPACKET(packet) memset(packet, 0, 10)
204 /* PCI bridge related */
206 #define SISUSB_PCI_MEMBASE 0xd0000000
207 #define SISUSB_PCI_MMIOBASE 0xe4000000
208 #define SISUSB_PCI_IOPORTBASE 0x0000d000
210 #define SISUSB_PCI_PSEUDO_MEMBASE 0x10000000
211 #define SISUSB_PCI_PSEUDO_MMIOBASE 0x20000000
212 #define SISUSB_PCI_PSEUDO_IOPORTBASE 0x0000d000
213 #define SISUSB_PCI_PSEUDO_PCIBASE 0x00010000
215 #define SISUSB_PCI_MMIOSIZE (128*1024)
216 #define SISUSB_PCI_PCONFSIZE 0x5c
218 /* graphics core related */
220 #define AROFFSET 0x40
221 #define ARROFFSET 0x41
222 #define GROFFSET 0x4e
223 #define SROFFSET 0x44
224 #define CROFFSET 0x54
225 #define MISCROFFSET 0x4c
226 #define MISCWOFFSET 0x42
227 #define INPUTSTATOFFSET 0x5A
228 #define PART1OFFSET 0x04
229 #define PART2OFFSET 0x10
230 #define PART3OFFSET 0x12
231 #define PART4OFFSET 0x14
232 #define PART5OFFSET 0x16
233 #define CAPTUREOFFSET 0x00
234 #define VIDEOOFFSET 0x02
235 #define COLREGOFFSET 0x48
236 #define PELMASKOFFSET 0x46
237 #define VGAENABLE 0x43
239 #define SISAR SISUSB_PCI_IOPORTBASE + AROFFSET
240 #define SISARR SISUSB_PCI_IOPORTBASE + ARROFFSET
241 #define SISGR SISUSB_PCI_IOPORTBASE + GROFFSET
242 #define SISSR SISUSB_PCI_IOPORTBASE + SROFFSET
243 #define SISCR SISUSB_PCI_IOPORTBASE + CROFFSET
244 #define SISMISCR SISUSB_PCI_IOPORTBASE + MISCROFFSET
245 #define SISMISCW SISUSB_PCI_IOPORTBASE + MISCWOFFSET
246 #define SISINPSTAT SISUSB_PCI_IOPORTBASE + INPUTSTATOFFSET
247 #define SISPART1 SISUSB_PCI_IOPORTBASE + PART1OFFSET
248 #define SISPART2 SISUSB_PCI_IOPORTBASE + PART2OFFSET
249 #define SISPART3 SISUSB_PCI_IOPORTBASE + PART3OFFSET
250 #define SISPART4 SISUSB_PCI_IOPORTBASE + PART4OFFSET
251 #define SISPART5 SISUSB_PCI_IOPORTBASE + PART5OFFSET
252 #define SISCAP SISUSB_PCI_IOPORTBASE + CAPTUREOFFSET
253 #define SISVID SISUSB_PCI_IOPORTBASE + VIDEOOFFSET
254 #define SISCOLIDXR SISUSB_PCI_IOPORTBASE + COLREGOFFSET - 1
255 #define SISCOLIDX SISUSB_PCI_IOPORTBASE + COLREGOFFSET
256 #define SISCOLDATA SISUSB_PCI_IOPORTBASE + COLREGOFFSET + 1
257 #define SISCOL2IDX SISPART5
258 #define SISCOL2DATA SISPART5 + 1
259 #define SISPEL SISUSB_PCI_IOPORTBASE + PELMASKOFFSET
260 #define SISVGAEN SISUSB_PCI_IOPORTBASE + VGAENABLE
261 #define SISDACA SISCOLIDX
262 #define SISDACD SISCOLDATA
266 /* Structure argument for SISUSB_GET_INFO ioctl */
268 __u32 sisusb_id; /* for identifying sisusb */
269 #define SISUSB_ID 0x53495355 /* Identify myself with 'SISU' */
271 __u8 sisusb_revision;
272 __u8 sisusb_patchlevel;
273 __u8 sisusb_gfxinit; /* graphics core initialized? */
275 __u32 sisusb_vrambase;
276 __u32 sisusb_mmiobase;
278 __u32 sisusb_pcibase;
280 __u32 sisusb_vramsize; /* framebuffer size in bytes */
284 __u32 sisusb_fbdevactive; /* != 0 if framebuffer device active */
286 __u32 sisusb_conactive; /* != 0 if console driver active */
288 __u8 sisusb_reserved[28]; /* for future use */
291 struct sisusb_command {
292 __u8 operation; /* see below */
293 __u8 data0; /* operation dependent */
294 __u8 data1; /* operation dependent */
295 __u8 data2; /* operation dependent */
296 __u32 data3; /* operation dependent */
297 __u32 data4; /* for future use */
300 #define SUCMD_GET 0x01 /* for all: data0 = index, data3 = port */
301 #define SUCMD_SET 0x02 /* data1 = value */
302 #define SUCMD_SETOR 0x03 /* data1 = or */
303 #define SUCMD_SETAND 0x04 /* data1 = and */
304 #define SUCMD_SETANDOR 0x05 /* data1 = and, data2 = or */
305 #define SUCMD_SETMASK 0x06 /* data1 = data, data2 = mask */
307 #define SUCMD_CLRSCR 0x07 /* data0:1:2 = length, data3 = address */
309 #define SUCMD_HANDLETEXTMODE 0x08 /* Reset/destroy text mode */
311 #define SUCMD_SETMODE 0x09 /* Set a display mode (data3 = SiS mode) */
312 #define SUCMD_SETVESAMODE 0x0a /* Set a display mode (data3 = VESA mode) */
314 #define SISUSB_COMMAND _IOWR(0xF3,0x3D,struct sisusb_command)
315 #define SISUSB_GET_CONFIG_SIZE _IOR(0xF3,0x3E,__u32)
316 #define SISUSB_GET_CONFIG _IOR(0xF3,0x3F,struct sisusb_info)
319 #endif /* SISUSB_H */