235 lines
8.7 KiB
C
235 lines
8.7 KiB
C
/*
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* driver_vec.h
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*
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* Interface for exposure of BaS drivers to the OS
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*
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* This file is part of BaS_gcc.
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*
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* BaS_gcc is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* BaS_gcc is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with BaS_gcc. If not, see <http://www.gnu.org/licenses/>.
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*
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* Created on: 24.10.2013
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* Author: Markus Fröschle
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*/
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#ifndef _DRIVER_VEC_H_
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#define _DRIVER_VEC_H_
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#include "xhdi_sd.h"
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#include "MCD_dma.h"
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enum driver_type
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{
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END_OF_DRIVERS, /* marks end of driver list */
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BLOCKDEV_DRIVER,
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CHARDEV_DRIVER,
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VIDEO_DRIVER,
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XHDI_DRIVER,
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MCD_DRIVER,
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};
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struct generic_driver_interface
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{
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uint32_t (*init)(void);
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uint32_t (*read)(void *buf, size_t count);
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uint32_t (*write)(const void *buf, size_t count);
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uint32_t (*ioctl)(uint32_t request, ...);
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};
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struct dma_driver_interface
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{
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int32_t version;
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int32_t magic;
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int32_t (*dma_set_initiator)(int32_t initiator);
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uint32_t (*dma_get_initiator)(int32_t requestor);
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void (*dma_free_initiator)(int32_t requestor);
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int32_t (*dma_set_channel)(int32_t requestor, void (*handler)(void));
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int32_t (*dma_get_channel)(int32_t requestor);
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void (*dma_free_channel)(int32_t requestor);
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void (*dma_clear_channel)(int32_t channel);
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int32_t (*MCD_startDma)(long channel,
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int8_t *srcAddr, uint32_t srcIncr, int8_t *destAddr, uint32_t destIncr,
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uint32_t dmaSize, uint32_t xferSize, uint32_t initiator, int32_t priority,
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uint32_t flags, uint32_t funcDesc);
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int32_t (*MCD_dmaStatus)(int32_t channel);
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int32_t (*MCD_XferProgrQuery)(int32_t channel, MCD_XferProg *progRep);
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int32_t (*MCD_killDma)(int32_t channel);
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int32_t (*MCD_continDma)(int32_t channel);
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int32_t (*MCD_pauseDma)(int32_t channel);
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int32_t (*MCD_resumeDma)(int32_t channel);
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int32_t (*MCD_csumQuery)(int32_t channel, uint32_t *csum);
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void *(*dma_malloc)(uint32_t amount);
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int32_t (*dma_free)(void *addr);
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};
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struct xhdi_driver_interface
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{
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uint32_t (*xhdivec)();
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};
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/* Interpretation of offset for color fields: All offsets are from the right,
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* inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
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* can use the offset as right argument to <<). A pixel afterwards is a bit
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* stream and is written to video memory as that unmodified. This implies
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* big-endian byte order if bits_per_pixel is greater than 8.
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*/
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struct fb_bitfield
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{
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unsigned long offset; /* beginning of bitfield */
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unsigned long length; /* length of bitfield */
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unsigned long msb_right; /* != 0 : Most significant bit is */
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/* right */
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};
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/*
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* the following structures define the interface to the BaS-builtin-framebuffer video driver
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*/
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struct fb_var_screeninfo
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{
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unsigned long xres; /* visible resolution */
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unsigned long yres;
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unsigned long xres_virtual; /* virtual resolution */
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unsigned long yres_virtual;
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unsigned long xoffset; /* offset from virtual to visible */
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unsigned long yoffset; /* resolution */
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unsigned long bits_per_pixel; /* guess what */
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unsigned long grayscale; /* != 0 Graylevels instead of colors */
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struct fb_bitfield red; /* bitfield in fb mem if true color, */
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struct fb_bitfield green; /* else only length is significant */
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struct fb_bitfield blue;
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struct fb_bitfield transp; /* transparency */
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unsigned long nonstd; /* != 0 Non standard pixel format */
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unsigned long activate; /* see FB_ACTIVATE_* */
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unsigned long height; /* height of picture in mm */
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unsigned long width; /* width of picture in mm */
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unsigned long accel_flags; /* (OBSOLETE) see fb_info.flags */
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/* Timing: All values in pixclocks, except pixclock (of course) */
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unsigned long pixclock; /* pixel clock in ps (pico seconds) */
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unsigned long left_margin; /* time from sync to picture */
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unsigned long right_margin; /* time from picture to sync */
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unsigned long upper_margin; /* time from sync to picture */
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unsigned long lower_margin;
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unsigned long hsync_len; /* length of horizontal sync */
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unsigned long vsync_len; /* length of vertical sync */
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unsigned long sync; /* see FB_SYNC_* */
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unsigned long vmode; /* see FB_VMODE_* */
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unsigned long rotate; /* angle we rotate counter clockwise */
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unsigned long refresh;
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unsigned long reserved[4]; /* Reserved for future compatibility */
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};
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struct fb_fix_screeninfo
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{
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char id[16]; /* identification string eg "TT Builtin" */
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unsigned long smem_start; /* Start of frame buffer mem */
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/* (physical address) */
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unsigned long smem_len; /* Length of frame buffer mem */
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unsigned long type; /* see FB_TYPE_* */
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unsigned long type_aux; /* Interleave for interleaved Planes */
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unsigned long visual; /* see FB_VISUAL_* */
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unsigned short xpanstep; /* zero if no hardware panning */
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unsigned short ypanstep; /* zero if no hardware panning */
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unsigned short ywrapstep; /* zero if no hardware ywrap */
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unsigned long line_length; /* length of a line in bytes */
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unsigned long mmio_start; /* Start of Memory Mapped I/O */
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/* (physical address) */
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unsigned long mmio_len; /* Length of Memory Mapped I/O */
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unsigned long accel; /* Indicate to driver which */
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/* specific chip/card we have */
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unsigned short reserved[3]; /* Reserved for future compatibility */
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};
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struct fb_chroma
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{
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unsigned long redx; /* in fraction of 1024 */
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unsigned long greenx;
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unsigned long bluex;
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unsigned long whitex;
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unsigned long redy;
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unsigned long greeny;
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unsigned long bluey;
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unsigned long whitey;
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};
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struct fb_monspecs
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{
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struct fb_chroma chroma;
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struct fb_videomode *modedb; /* mode database */
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unsigned char manufacturer[4]; /* Manufacturer */
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unsigned char monitor[14]; /* Monitor String */
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unsigned char serial_no[14]; /* Serial Number */
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unsigned char ascii[14]; /* ? */
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unsigned long modedb_len; /* mode database length */
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unsigned long model; /* Monitor Model */
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unsigned long serial; /* Serial Number - Integer */
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unsigned long year; /* Year manufactured */
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unsigned long week; /* Week Manufactured */
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unsigned long hfmin; /* hfreq lower limit (Hz) */
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unsigned long hfmax; /* hfreq upper limit (Hz) */
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unsigned long dclkmin; /* pixelclock lower limit (Hz) */
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unsigned long dclkmax; /* pixelclock upper limit (Hz) */
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unsigned short input; /* display type - see FB_DISP_* */
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unsigned short dpms; /* DPMS support - see FB_DPMS_ */
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unsigned short signal; /* Signal Type - see FB_SIGNAL_* */
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unsigned short vfmin; /* vfreq lower limit (Hz) */
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unsigned short vfmax; /* vfreq upper limit (Hz) */
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unsigned short gamma; /* Gamma - in fractions of 100 */
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unsigned short gtf : 1; /* supports GTF */
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unsigned short misc; /* Misc flags - see FB_MISC_* */
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unsigned char version; /* EDID version... */
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unsigned char revision; /* ...and revision */
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unsigned char max_x; /* Maximum horizontal size (cm) */
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unsigned char max_y; /* Maximum vertical size (cm) */
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};
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struct framebuffer_driver_interface
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{
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struct fb_info **framebuffer_info; /* pointer to an fb_info struct (defined in include/fb.h) */
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};
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union interface
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{
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struct generic_driver_interface *gdi;
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struct xhdi_driver_interface *xhdi;
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struct dma_driver_interface *dma;
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struct framebuffer_driver_interface *fb;
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};
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struct generic_interface
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{
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enum driver_type type;
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char name[16];
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char description[64];
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int version;
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int revision;
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union interface interface;
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};
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struct driver_table
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{
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uint32_t bas_version;
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uint32_t bas_revision;
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uint32_t (*remove_handler)(); /* calling this will disable the BaS' hook into trap #0 */
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struct generic_interface *interfaces[];
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};
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#endif /* _DRIVER_VEC_H_ */
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