* linux/drivers/video/atafb.c -- Atari builtin chipset frame buffer device
*
* Copyright (C) 1994 Martin Schaller & Roman Hodek
- *
+ *
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
#include <linux/fb.h>
#include <asm/atarikb.h>
-#include <video/fbcon.h>
-#include <video/fbcon-cfb8.h>
-#include <video/fbcon-cfb16.h>
-#include <video/fbcon-iplan2p2.h>
-#include <video/fbcon-iplan2p4.h>
-#include <video/fbcon-iplan2p8.h>
-#include <video/fbcon-mfb.h>
-
+#include "c2p.h"
+#include "atafb.h"
#define SWITCH_ACIA 0x01 /* modes for switch on OverScan */
#define SWITCH_SND6 0x40
#define up(x, r) (((x) + (r) - 1) & ~((r)-1))
+ /*
+ * Interface to the world
+ */
+
+static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info);
+static int atafb_set_par(struct fb_info *info);
+static int atafb_setcolreg(unsigned int regno, unsigned int red, unsigned int green,
+ unsigned int blue, unsigned int transp,
+ struct fb_info *info);
+static int atafb_blank(int blank, struct fb_info *info);
+static int atafb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info);
+static void atafb_fillrect(struct fb_info *info,
+ const struct fb_fillrect *rect);
+static void atafb_copyarea(struct fb_info *info,
+ const struct fb_copyarea *region);
+static void atafb_imageblit(struct fb_info *info, const struct fb_image *image);
+static int atafb_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg);
-static int default_par=0; /* default resolution (0=none) */
-static unsigned long default_mem_req=0;
+static int default_par; /* default resolution (0=none) */
-static int hwscroll=-1;
+static unsigned long default_mem_req;
+
+static int hwscroll = -1;
static int use_hwscroll = 1;
-static int sttt_xres=640,st_yres=400,tt_yres=480;
-static int sttt_xres_virtual=640,sttt_yres_virtual=400;
-static int ovsc_offset=0, ovsc_addlen=0;
+static int sttt_xres = 640, st_yres = 400, tt_yres = 480;
+static int sttt_xres_virtual = 640, sttt_yres_virtual = 400;
+static int ovsc_offset, ovsc_addlen;
+
+ /*
+ * Hardware parameters for current mode
+ */
static struct atafb_par {
void *screen_base;
int yres_virtual;
+ u_long next_line;
+ u_long next_plane;
#if defined ATAFB_TT || defined ATAFB_STE
union {
struct {
/* Don't calculate an own resolution, and thus don't change the one found when
* booting (currently used for the Falcon to keep settings for internal video
* hardware extensions (e.g. ScreenBlaster) */
-static int DontCalcRes = 0;
+static int DontCalcRes = 0;
#ifdef ATAFB_FALCON
#define HHT hw.falcon.hht
#define VMO_PREMASK 0x0c
#endif
-static struct fb_info fb_info;
+static struct fb_info fb_info = {
+ .fix = {
+ .id = "Atari ",
+ .visual = FB_VISUAL_PSEUDOCOLOR,
+ .accel = FB_ACCEL_NONE,
+ }
+};
static void *screen_base; /* base address of screen */
static void *real_screen_base; /* (only for Overscan) */
static int screen_len;
-static int current_par_valid=0;
-
-static int mono_moni=0;
+static int current_par_valid;
-static struct display disp;
+static int mono_moni;
#ifdef ATAFB_EXT
-/* external video handling */
-static unsigned external_xres;
-static unsigned external_xres_virtual;
-static unsigned external_yres;
-/* not needed - atafb will never support panning/hardwarescroll with external
- * static unsigned external_yres_virtual;
-*/
+/* external video handling */
+static unsigned int external_xres;
+static unsigned int external_xres_virtual;
+static unsigned int external_yres;
-static unsigned external_depth;
-static int external_pmode;
-static void *external_addr = 0;
-static unsigned long external_len;
-static unsigned long external_vgaiobase = 0;
-static unsigned int external_bitspercol = 6;
-
-/*
-JOE <joe@amber.dinoco.de>:
-added card type for external driver, is only needed for
-colormap handling.
-*/
+/*
+ * not needed - atafb will never support panning/hardwarescroll with external
+ * static unsigned int external_yres_virtual;
+ */
+static unsigned int external_depth;
+static int external_pmode;
+static void *external_addr;
+static unsigned long external_len;
+static unsigned long external_vgaiobase;
+static unsigned int external_bitspercol = 6;
+/*
+ * JOE <joe@amber.dinoco.de>:
+ * added card type for external driver, is only needed for
+ * colormap handling.
+ */
enum cardtype { IS_VGA, IS_MV300 };
static enum cardtype external_card_type = IS_VGA;
/*
-The MV300 mixes the color registers. So we need an array of munged
-indices in order to access the correct reg.
-*/
-static int MV300_reg_1bit[2]={0,1};
-static int MV300_reg_4bit[16]={
-0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15 };
-static int MV300_reg_8bit[256]={
-0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240,
-8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248,
-4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244,
-12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252,
-2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242,
-10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250,
-6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246,
-14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254,
-1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241,
-9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249,
-5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245,
-13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253,
-3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243,
-11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251,
-7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247,
-15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255 };
+ * The MV300 mixes the color registers. So we need an array of munged
+ * indices in order to access the correct reg.
+ */
+static int MV300_reg_1bit[2] = {
+ 0, 1
+};
+static int MV300_reg_4bit[16] = {
+ 0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15
+};
+static int MV300_reg_8bit[256] = {
+ 0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240,
+ 8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248,
+ 4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244,
+ 12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252,
+ 2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242,
+ 10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250,
+ 6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246,
+ 14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254,
+ 1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241,
+ 9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249,
+ 5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245,
+ 13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253,
+ 3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243,
+ 11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251,
+ 7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247,
+ 15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255
+};
static int *MV300_reg = MV300_reg_8bit;
-
-/*
-And on the MV300 it's difficult to read out the hardware palette. So we
-just keep track of the set colors in our own array here, and use that!
-*/
-
-static struct { unsigned char red,green,blue,pad; } ext_color[256];
#endif /* ATAFB_EXT */
-static int inverse=0;
+static int inverse;
extern int fontheight_8x8;
extern int fontwidth_8x8;
extern int fontwidth_8x16;
extern unsigned char fontdata_8x16[];
+/*
+ * struct fb_ops {
+ * * open/release and usage marking
+ * struct module *owner;
+ * int (*fb_open)(struct fb_info *info, int user);
+ * int (*fb_release)(struct fb_info *info, int user);
+ *
+ * * For framebuffers with strange non linear layouts or that do not
+ * * work with normal memory mapped access
+ * ssize_t (*fb_read)(struct file *file, char __user *buf, size_t count, loff_t *ppos);
+ * ssize_t (*fb_write)(struct file *file, const char __user *buf, size_t count, loff_t *ppos);
+ *
+ * * checks var and eventually tweaks it to something supported,
+ * * DOES NOT MODIFY PAR *
+ * int (*fb_check_var)(struct fb_var_screeninfo *var, struct fb_info *info);
+ *
+ * * set the video mode according to info->var *
+ * int (*fb_set_par)(struct fb_info *info);
+ *
+ * * set color register *
+ * int (*fb_setcolreg)(unsigned int regno, unsigned int red, unsigned int green,
+ * unsigned int blue, unsigned int transp, struct fb_info *info);
+ *
+ * * set color registers in batch *
+ * int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
+ *
+ * * blank display *
+ * int (*fb_blank)(int blank, struct fb_info *info);
+ *
+ * * pan display *
+ * int (*fb_pan_display)(struct fb_var_screeninfo *var, struct fb_info *info);
+ *
+ * *** The meat of the drawing engine ***
+ * * Draws a rectangle *
+ * void (*fb_fillrect) (struct fb_info *info, const struct fb_fillrect *rect);
+ * * Copy data from area to another *
+ * void (*fb_copyarea) (struct fb_info *info, const struct fb_copyarea *region);
+ * * Draws a image to the display *
+ * void (*fb_imageblit) (struct fb_info *info, const struct fb_image *image);
+ *
+ * * Draws cursor *
+ * int (*fb_cursor) (struct fb_info *info, struct fb_cursor *cursor);
+ *
+ * * Rotates the display *
+ * void (*fb_rotate)(struct fb_info *info, int angle);
+ *
+ * * wait for blit idle, optional *
+ * int (*fb_sync)(struct fb_info *info);
+ *
+ * * perform fb specific ioctl (optional) *
+ * int (*fb_ioctl)(struct fb_info *info, unsigned int cmd,
+ * unsigned long arg);
+ *
+ * * Handle 32bit compat ioctl (optional) *
+ * int (*fb_compat_ioctl)(struct fb_info *info, unsigned int cmd,
+ * unsigned long arg);
+ *
+ * * perform fb specific mmap *
+ * int (*fb_mmap)(struct fb_info *info, struct vm_area_struct *vma);
+ *
+ * * save current hardware state *
+ * void (*fb_save_state)(struct fb_info *info);
+ *
+ * * restore saved state *
+ * void (*fb_restore_state)(struct fb_info *info);
+ * } ;
+ */
+
+
/* ++roman: This structure abstracts from the underlying hardware (ST(e),
* TT, or Falcon.
*
- * int (*detect)( void )
+ * int (*detect)(void)
* This function should detect the current video mode settings and
* store them in atafb_predefined[0] for later reference by the
* user. Return the index+1 of an equivalent predefined mode or 0
* if there is no such.
- *
- * int (*encode_fix)( struct fb_fix_screeninfo *fix,
- * struct atafb_par *par )
+ *
+ * int (*encode_fix)(struct fb_fix_screeninfo *fix,
+ * struct atafb_par *par)
* This function should fill in the 'fix' structure based on the
* values in the 'par' structure.
- *
- * int (*decode_var)( struct fb_var_screeninfo *var,
- * struct atafb_par *par )
+ * !!! Obsolete, perhaps !!!
+ *
+ * int (*decode_var)(struct fb_var_screeninfo *var,
+ * struct atafb_par *par)
* Get the video params out of 'var'. If a value doesn't fit, round
* it up, if it's too big, return EINVAL.
- * Round up in the following order: bits_per_pixel, xres, yres,
- * xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields,
+ * Round up in the following order: bits_per_pixel, xres, yres,
+ * xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields,
* horizontal timing, vertical timing.
*
- * int (*encode_var)( struct fb_var_screeninfo *var,
- * struct atafb_par *par );
+ * int (*encode_var)(struct fb_var_screeninfo *var,
+ * struct atafb_par *par);
* Fill the 'var' structure based on the values in 'par' and maybe
* other values read out of the hardware.
- *
- * void (*get_par)( struct atafb_par *par )
+ *
+ * void (*get_par)(struct atafb_par *par)
* Fill the hardware's 'par' structure.
- *
- * void (*set_par)( struct atafb_par *par )
+ * !!! Used only by detect() !!!
+ *
+ * void (*set_par)(struct atafb_par *par)
* Set the hardware according to 'par'.
- *
- * int (*getcolreg)( unsigned regno, unsigned *red,
- * unsigned *green, unsigned *blue,
- * unsigned *transp, struct fb_info *info )
- * Read a single color register and split it into
- * colors/transparent. Return != 0 for invalid regno.
*
* void (*set_screen_base)(void *s_base)
* Set the base address of the displayed frame buffer. Only called
* if yres_virtual > yres or xres_virtual > xres.
*
- * int (*blank)( int blank_mode )
- * Blank the screen if blank_mode!=0, else unblank. If blank==NULL then
+ * int (*blank)(int blank_mode)
+ * Blank the screen if blank_mode != 0, else unblank. If blank == NULL then
* the caller blanks by setting the CLUT to all black. Return 0 if blanking
* succeeded, !=0 if un-/blanking failed due to e.g. a video mode which
* doesn't support it. Implements VESA suspend and powerdown modes on
* hardware that supports disabling hsync/vsync:
- * blank_mode==2: suspend vsync, 3:suspend hsync, 4: powerdown.
+ * blank_mode == 2: suspend vsync, 3:suspend hsync, 4: powerdown.
*/
static struct fb_hwswitch {
- int (*detect)( void );
- int (*encode_fix)( struct fb_fix_screeninfo *fix,
- struct atafb_par *par );
- int (*decode_var)( struct fb_var_screeninfo *var,
- struct atafb_par *par );
- int (*encode_var)( struct fb_var_screeninfo *var,
- struct atafb_par *par );
- void (*get_par)( struct atafb_par *par );
- void (*set_par)( struct atafb_par *par );
- int (*getcolreg)( unsigned regno, unsigned *red,
- unsigned *green, unsigned *blue,
- unsigned *transp, struct fb_info *info );
+ int (*detect)(void);
+ int (*encode_fix)(struct fb_fix_screeninfo *fix,
+ struct atafb_par *par);
+ int (*decode_var)(struct fb_var_screeninfo *var,
+ struct atafb_par *par);
+ int (*encode_var)(struct fb_var_screeninfo *var,
+ struct atafb_par *par);
+ void (*get_par)(struct atafb_par *par);
+ void (*set_par)(struct atafb_par *par);
void (*set_screen_base)(void *s_base);
- int (*blank)( int blank_mode );
- int (*pan_display)( struct fb_var_screeninfo *var,
- struct atafb_par *par);
+ int (*blank)(int blank_mode);
+ int (*pan_display)(struct fb_var_screeninfo *var,
+ struct fb_info *info);
} *fbhw;
-static char *autodetect_names[] = {"autodetect", NULL};
-static char *stlow_names[] = {"stlow", NULL};
-static char *stmid_names[] = {"stmid", "default5", NULL};
-static char *sthigh_names[] = {"sthigh", "default4", NULL};
-static char *ttlow_names[] = {"ttlow", NULL};
-static char *ttmid_names[]= {"ttmid", "default1", NULL};
-static char *tthigh_names[]= {"tthigh", "default2", NULL};
-static char *vga2_names[] = {"vga2", NULL};
-static char *vga4_names[] = {"vga4", NULL};
-static char *vga16_names[] = {"vga16", "default3", NULL};
-static char *vga256_names[] = {"vga256", NULL};
-static char *falh2_names[] = {"falh2", NULL};
-static char *falh16_names[] = {"falh16", NULL};
+static char *autodetect_names[] = { "autodetect", NULL };
+static char *stlow_names[] = { "stlow", NULL };
+static char *stmid_names[] = { "stmid", "default5", NULL };
+static char *sthigh_names[] = { "sthigh", "default4", NULL };
+static char *ttlow_names[] = { "ttlow", NULL };
+static char *ttmid_names[] = { "ttmid", "default1", NULL };
+static char *tthigh_names[] = { "tthigh", "default2", NULL };
+static char *vga2_names[] = { "vga2", NULL };
+static char *vga4_names[] = { "vga4", NULL };
+static char *vga16_names[] = { "vga16", "default3", NULL };
+static char *vga256_names[] = { "vga256", NULL };
+static char *falh2_names[] = { "falh2", NULL };
+static char *falh16_names[] = { "falh16", NULL };
static char **fb_var_names[] = {
- /* Writing the name arrays directly in this array (via "(char *[]){...}")
- * crashes gcc 2.5.8 (sigsegv) if the inner array
- * contains more than two items. I've also seen that all elements
- * were identical to the last (my cross-gcc) :-(*/
autodetect_names,
stlow_names,
stmid_names,
falh2_names,
falh16_names,
NULL
- /* ,NULL */ /* this causes a sigsegv on my gcc-2.5.8 */
};
static struct fb_var_screeninfo atafb_predefined[] = {
- /*
- * yres_virtual==0 means use hw-scrolling if possible, else yres
- */
- { /* autodetect */
- 0, 0, 0, 0, 0, 0, 0, 0, /* xres-grayscale */
- {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, /* red green blue tran*/
+ /*
+ * yres_virtual == 0 means use hw-scrolling if possible, else yres
+ */
+ { /* autodetect */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* xres-grayscale */
+ {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, {0, 0, 0}, /* red green blue tran*/
0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 },
- { /* st low */
+ { /* st low */
320, 200, 320, 0, 0, 0, 4, 0,
{0, 4, 0}, {0, 4, 0}, {0, 4, 0}, {0, 0, 0},
0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 },
0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0 },
};
-static int num_atafb_predefined=ARRAY_SIZE(atafb_predefined);
+static int num_atafb_predefined = ARRAY_SIZE(atafb_predefined);
+static struct fb_videomode atafb_modedb[] __initdata = {
+ /*
+ * Atari Video Modes
+ *
+ * If you change these, make sure to update DEFMODE_* as well!
+ */
-static int
-get_video_mode(char *vname)
+ /*
+ * ST/TT Video Modes
+ */
+
+ {
+ /* 320x200, 15 kHz, 60 Hz (ST low) */
+ "st-low", 60, 320, 200, 32000, 32, 16, 31, 14, 96, 4,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* 640x200, 15 kHz, 60 Hz (ST medium) */
+ "st-mid", 60, 640, 200, 32000, 32, 16, 31, 14, 96, 4,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* 640x400, 30.25 kHz, 63.5 Hz (ST high) */
+ "st-high", 63, 640, 400, 32000, 128, 0, 40, 14, 128, 4,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* 320x480, 15 kHz, 60 Hz (TT low) */
+ "tt-low", 60, 320, 480, 31041, 120, 100, 8, 16, 140, 30,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* 640x480, 29 kHz, 57 Hz (TT medium) */
+ "tt-mid", 60, 640, 480, 31041, 120, 100, 8, 16, 140, 30,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* 1280x960, 29 kHz, 60 Hz (TT high) */
+ "tt-high", 57, 640, 960, 31041, 120, 100, 8, 16, 140, 30,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ },
+
+ /*
+ * VGA Video Modes
+ */
+
+ {
+ /* 640x480, 31 kHz, 60 Hz (VGA) */
+ "vga", 63.5, 640, 480, 32000, 18, 42, 31, 11, 96, 3,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ }, {
+ /* 640x400, 31 kHz, 70 Hz (VGA) */
+ "vga70", 70, 640, 400, 32000, 18, 42, 31, 11, 96, 3,
+ FB_SYNC_VERT_HIGH_ACT | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ },
+
+ /*
+ * Falcon HiRes Video Modes
+ */
+
+ {
+ /* 896x608, 31 kHz, 60 Hz (Falcon High) */
+ "falh", 60, 896, 608, 32000, 18, 42, 31, 1, 96,3,
+ 0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
+ },
+};
+
+#define NUM_TOTAL_MODES ARRAY_SIZE(atafb_modedb)
+
+static char *mode_option __initdata = NULL;
+
+ /* default modes */
+
+#define DEFMODE_TT 5 /* "tt-high" for TT */
+#define DEFMODE_F30 7 /* "vga70" for Falcon */
+#define DEFMODE_STE 2 /* "st-high" for ST/E */
+#define DEFMODE_EXT 6 /* "vga" for external */
+
+
+static int get_video_mode(char *vname)
{
- char ***name_list;
- char **name;
- int i;
- name_list=fb_var_names;
- for (i = 0 ; i < num_atafb_predefined ; i++) {
- name=*(name_list++);
- if (! name || ! *name)
- break;
- while (*name) {
- if (! strcmp(vname, *name))
- return i+1;
- name++;
+ char ***name_list;
+ char **name;
+ int i;
+
+ name_list = fb_var_names;
+ for (i = 0; i < num_atafb_predefined; i++) {
+ name = *name_list++;
+ if (!name || !*name)
+ break;
+ while (*name) {
+ if (!strcmp(vname, *name))
+ return i + 1;
+ name++;
+ }
}
- }
- return 0;
+ return 0;
}
#ifdef ATAFB_TT
-static int tt_encode_fix( struct fb_fix_screeninfo *fix,
- struct atafb_par *par )
-
+static int tt_encode_fix(struct fb_fix_screeninfo *fix, struct atafb_par *par)
{
int mode;
- strcpy(fix->id,"Atari Builtin");
+ strcpy(fix->id, "Atari Builtin");
fix->smem_start = (unsigned long)real_screen_base;
fix->smem_len = screen_len;
- fix->type=FB_TYPE_INTERLEAVED_PLANES;
- fix->type_aux=2;
- fix->visual=FB_VISUAL_PSEUDOCOLOR;
+ fix->type = FB_TYPE_INTERLEAVED_PLANES;
+ fix->type_aux = 2;
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
mode = par->hw.tt.mode & TT_SHIFTER_MODEMASK;
if (mode == TT_SHIFTER_TTHIGH || mode == TT_SHIFTER_STHIGH) {
- fix->type=FB_TYPE_PACKED_PIXELS;
- fix->type_aux=0;
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->type_aux = 0;
if (mode == TT_SHIFTER_TTHIGH)
- fix->visual=FB_VISUAL_MONO01;
+ fix->visual = FB_VISUAL_MONO01;
}
- fix->xpanstep=0;
- fix->ypanstep=1;
- fix->ywrapstep=0;
+ fix->xpanstep = 0;
+ fix->ypanstep = 1;
+ fix->ywrapstep = 0;
fix->line_length = 0;
fix->accel = FB_ACCEL_ATARIBLITT;
return 0;
}
-
-static int tt_decode_var( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int tt_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par)
{
- int xres=var->xres;
- int yres=var->yres;
- int bpp=var->bits_per_pixel;
+ int xres = var->xres;
+ int yres = var->yres;
+ int bpp = var->bits_per_pixel;
int linelen;
int yres_virtual = var->yres_virtual;
if (mono_moni) {
- if (bpp > 1 || xres > sttt_xres*2 || yres >tt_yres*2)
+ if (bpp > 1 || xres > sttt_xres * 2 || yres > tt_yres * 2)
return -EINVAL;
- par->hw.tt.mode=TT_SHIFTER_TTHIGH;
- xres=sttt_xres*2;
- yres=tt_yres*2;
- bpp=1;
+ par->hw.tt.mode = TT_SHIFTER_TTHIGH;
+ xres = sttt_xres * 2;
+ yres = tt_yres * 2;
+ bpp = 1;
} else {
if (bpp > 8 || xres > sttt_xres || yres > tt_yres)
return -EINVAL;
if (bpp > 4) {
- if (xres > sttt_xres/2 || yres > tt_yres)
+ if (xres > sttt_xres / 2 || yres > tt_yres)
return -EINVAL;
- par->hw.tt.mode=TT_SHIFTER_TTLOW;
- xres=sttt_xres/2;
- yres=tt_yres;
- bpp=8;
- }
- else if (bpp > 2) {
+ par->hw.tt.mode = TT_SHIFTER_TTLOW;
+ xres = sttt_xres / 2;
+ yres = tt_yres;
+ bpp = 8;
+ } else if (bpp > 2) {
if (xres > sttt_xres || yres > tt_yres)
return -EINVAL;
- if (xres > sttt_xres/2 || yres > st_yres/2) {
- par->hw.tt.mode=TT_SHIFTER_TTMID;
- xres=sttt_xres;
- yres=tt_yres;
- bpp=4;
+ if (xres > sttt_xres / 2 || yres > st_yres / 2) {
+ par->hw.tt.mode = TT_SHIFTER_TTMID;
+ xres = sttt_xres;
+ yres = tt_yres;
+ bpp = 4;
+ } else {
+ par->hw.tt.mode = TT_SHIFTER_STLOW;
+ xres = sttt_xres / 2;
+ yres = st_yres / 2;
+ bpp = 4;
}
- else {
- par->hw.tt.mode=TT_SHIFTER_STLOW;
- xres=sttt_xres/2;
- yres=st_yres/2;
- bpp=4;
- }
- }
- else if (bpp > 1) {
- if (xres > sttt_xres || yres > st_yres/2)
+ } else if (bpp > 1) {
+ if (xres > sttt_xres || yres > st_yres / 2)
return -EINVAL;
- par->hw.tt.mode=TT_SHIFTER_STMID;
- xres=sttt_xres;
- yres=st_yres/2;
- bpp=2;
- }
- else if (var->xres > sttt_xres || var->yres > st_yres) {
+ par->hw.tt.mode = TT_SHIFTER_STMID;
+ xres = sttt_xres;
+ yres = st_yres / 2;
+ bpp = 2;
+ } else if (var->xres > sttt_xres || var->yres > st_yres) {
return -EINVAL;
- }
- else {
- par->hw.tt.mode=TT_SHIFTER_STHIGH;
- xres=sttt_xres;
- yres=st_yres;
- bpp=1;
+ } else {
+ par->hw.tt.mode = TT_SHIFTER_STHIGH;
+ xres = sttt_xres;
+ yres = st_yres;
+ bpp = 1;
}
}
if (yres_virtual <= 0)
else if (yres_virtual < yres)
yres_virtual = yres;
if (var->sync & FB_SYNC_EXT)
- par->hw.tt.sync=0;
+ par->hw.tt.sync = 0;
else
- par->hw.tt.sync=1;
- linelen=xres*bpp/8;
+ par->hw.tt.sync = 1;
+ linelen = xres * bpp / 8;
if (yres_virtual * linelen > screen_len && screen_len)
return -EINVAL;
if (yres * linelen > screen_len && screen_len)
return 0;
}
-static int tt_encode_var( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int tt_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par)
{
int linelen;
memset(var, 0, sizeof(struct fb_var_screeninfo));
- var->red.offset=0;
- var->red.length=4;
- var->red.msb_right=0;
- var->grayscale=0;
-
- var->pixclock=31041;
- var->left_margin=120; /* these may be incorrect */
- var->right_margin=100;
- var->upper_margin=8;
- var->lower_margin=16;
- var->hsync_len=140;
- var->vsync_len=30;
-
- var->height=-1;
- var->width=-1;
+ var->red.offset = 0;
+ var->red.length = 4;
+ var->red.msb_right = 0;
+ var->grayscale = 0;
+
+ var->pixclock = 31041;
+ var->left_margin = 120; /* these may be incorrect */
+ var->right_margin = 100;
+ var->upper_margin = 8;
+ var->lower_margin = 16;
+ var->hsync_len = 140;
+ var->vsync_len = 30;
+
+ var->height = -1;
+ var->width = -1;
if (par->hw.tt.sync & 1)
- var->sync=0;
+ var->sync = 0;
else
- var->sync=FB_SYNC_EXT;
+ var->sync = FB_SYNC_EXT;
switch (par->hw.tt.mode & TT_SHIFTER_MODEMASK) {
case TT_SHIFTER_STLOW:
- var->xres=sttt_xres/2;
- var->xres_virtual=sttt_xres_virtual/2;
- var->yres=st_yres/2;
- var->bits_per_pixel=4;
+ var->xres = sttt_xres / 2;
+ var->xres_virtual = sttt_xres_virtual / 2;
+ var->yres = st_yres / 2;
+ var->bits_per_pixel = 4;
break;
case TT_SHIFTER_STMID:
- var->xres=sttt_xres;
- var->xres_virtual=sttt_xres_virtual;
- var->yres=st_yres/2;
- var->bits_per_pixel=2;
+ var->xres = sttt_xres;
+ var->xres_virtual = sttt_xres_virtual;
+ var->yres = st_yres / 2;
+ var->bits_per_pixel = 2;
break;
case TT_SHIFTER_STHIGH:
- var->xres=sttt_xres;
- var->xres_virtual=sttt_xres_virtual;
- var->yres=st_yres;
- var->bits_per_pixel=1;
+ var->xres = sttt_xres;
+ var->xres_virtual = sttt_xres_virtual;
+ var->yres = st_yres;
+ var->bits_per_pixel = 1;
break;
case TT_SHIFTER_TTLOW:
- var->xres=sttt_xres/2;
- var->xres_virtual=sttt_xres_virtual/2;
- var->yres=tt_yres;
- var->bits_per_pixel=8;
+ var->xres = sttt_xres / 2;
+ var->xres_virtual = sttt_xres_virtual / 2;
+ var->yres = tt_yres;
+ var->bits_per_pixel = 8;
break;
case TT_SHIFTER_TTMID:
- var->xres=sttt_xres;
- var->xres_virtual=sttt_xres_virtual;
- var->yres=tt_yres;
- var->bits_per_pixel=4;
+ var->xres = sttt_xres;
+ var->xres_virtual = sttt_xres_virtual;
+ var->yres = tt_yres;
+ var->bits_per_pixel = 4;
break;
case TT_SHIFTER_TTHIGH:
- var->red.length=0;
- var->xres=sttt_xres*2;
- var->xres_virtual=sttt_xres_virtual*2;
- var->yres=tt_yres*2;
- var->bits_per_pixel=1;
+ var->red.length = 0;
+ var->xres = sttt_xres * 2;
+ var->xres_virtual = sttt_xres_virtual * 2;
+ var->yres = tt_yres * 2;
+ var->bits_per_pixel = 1;
break;
- }
- var->blue=var->green=var->red;
- var->transp.offset=0;
- var->transp.length=0;
- var->transp.msb_right=0;
- linelen=var->xres_virtual * var->bits_per_pixel / 8;
- if (! use_hwscroll)
- var->yres_virtual=var->yres;
+ }
+ var->blue = var->green = var->red;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->transp.msb_right = 0;
+ linelen = var->xres_virtual * var->bits_per_pixel / 8;
+ if (!use_hwscroll)
+ var->yres_virtual = var->yres;
else if (screen_len) {
if (par->yres_virtual)
var->yres_virtual = par->yres_virtual;
else
- /* yres_virtual==0 means use maximum */
+ /* yres_virtual == 0 means use maximum */
var->yres_virtual = screen_len / linelen;
} else {
if (hwscroll < 0)
var->yres_virtual = 2 * var->yres;
else
- var->yres_virtual=var->yres+hwscroll * 16;
+ var->yres_virtual = var->yres + hwscroll * 16;
}
- var->xoffset=0;
+ var->xoffset = 0;
if (screen_base)
- var->yoffset=(par->screen_base - screen_base)/linelen;
+ var->yoffset = (par->screen_base - screen_base) / linelen;
else
- var->yoffset=0;
- var->nonstd=0;
- var->activate=0;
- var->vmode=FB_VMODE_NONINTERLACED;
+ var->yoffset = 0;
+ var->nonstd = 0;
+ var->activate = 0;
+ var->vmode = FB_VMODE_NONINTERLACED;
return 0;
}
-
-static void tt_get_par( struct atafb_par *par )
+static void tt_get_par(struct atafb_par *par)
{
unsigned long addr;
- par->hw.tt.mode=shifter_tt.tt_shiftmode;
- par->hw.tt.sync=shifter.syncmode;
+ par->hw.tt.mode = shifter_tt.tt_shiftmode;
+ par->hw.tt.sync = shifter.syncmode;
addr = ((shifter.bas_hi & 0xff) << 16) |
((shifter.bas_md & 0xff) << 8) |
((shifter.bas_lo & 0xff));
par->screen_base = phys_to_virt(addr);
}
-static void tt_set_par( struct atafb_par *par )
+static void tt_set_par(struct atafb_par *par)
{
- shifter_tt.tt_shiftmode=par->hw.tt.mode;
- shifter.syncmode=par->hw.tt.sync;
+ shifter_tt.tt_shiftmode = par->hw.tt.mode;
+ shifter.syncmode = par->hw.tt.sync;
/* only set screen_base if really necessary */
if (current_par.screen_base != par->screen_base)
fbhw->set_screen_base(par->screen_base);
}
-
-static int tt_getcolreg(unsigned regno, unsigned *red,
- unsigned *green, unsigned *blue,
- unsigned *transp, struct fb_info *info)
-{
- int t, col;
-
- if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == TT_SHIFTER_STHIGH)
- regno += 254;
- if (regno > 255)
- return 1;
- t = tt_palette[regno];
- col = t & 15;
- col |= col << 4;
- col |= col << 8;
- *blue = col;
- col = (t >> 4) & 15;
- col |= col << 4;
- col |= col << 8;
- *green = col;
- col = (t >> 8) & 15;
- col |= col << 4;
- col |= col << 8;
- *red = col;
- *transp = 0;
- return 0;
-}
-
-
-static int tt_setcolreg(unsigned regno, unsigned red,
- unsigned green, unsigned blue,
- unsigned transp, struct fb_info *info)
+static int tt_setcolreg(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ unsigned int transp, struct fb_info *info)
{
if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) == TT_SHIFTER_STHIGH)
regno += 254;
tt_palette[regno] = (((red >> 12) << 8) | ((green >> 12) << 4) |
(blue >> 12));
if ((shifter_tt.tt_shiftmode & TT_SHIFTER_MODEMASK) ==
- TT_SHIFTER_STHIGH && regno == 254)
+ TT_SHIFTER_STHIGH && regno == 254)
tt_palette[0] = 0;
return 0;
}
-
-static int tt_detect( void )
-
-{ struct atafb_par par;
+static int tt_detect(void)
+{
+ struct atafb_par par;
/* Determine the connected monitor: The DMA sound must be
* disabled before reading the MFP GPIP, because the Sound
* announced that the Eagle is TT compatible, but only the PCM is
* missing...
*/
- if (ATARIHW_PRESENT(PCM_8BIT)) {
+ if (ATARIHW_PRESENT(PCM_8BIT)) {
tt_dmasnd.ctrl = DMASND_CTRL_OFF;
- udelay(20); /* wait a while for things to settle down */
+ udelay(20); /* wait a while for things to settle down */
}
mono_moni = (mfp.par_dt_reg & 0x80) == 0;
unsigned long f; /* f/[Hz] */
unsigned long t; /* t/[ps] (=1/f) */
int right, hsync, left; /* standard timing in clock cycles, not pixel */
- /* hsync initialized in falcon_detect() */
+ /* hsync initialized in falcon_detect() */
int sync_mask; /* or-mask for hw.falcon.sync to set this clock */
int control_mask; /* ditto, for hw.falcon.vid_control */
-}
-f25 = {25175000, 39721, 18, 0, 42, 0x0, VCO_CLOCK25},
-f32 = {32000000, 31250, 18, 0, 42, 0x0, 0},
-fext = { 0, 0, 18, 0, 42, 0x1, 0};
+} f25 = {
+ 25175000, 39721, 18, 0, 42, 0x0, VCO_CLOCK25
+}, f32 = {
+ 32000000, 31250, 18, 0, 42, 0x0, 0
+}, fext = {
+ 0, 0, 18, 0, 42, 0x1, 0
+};
/* VIDEL-prescale values [mon_type][pixel_length from VCO] */
-static int vdl_prescale[4][3] = {{4,2,1}, {4,2,1}, {4,2,2}, {4,2,1}};
+static int vdl_prescale[4][3] = {
+ { 4,2,1 }, { 4,2,1 }, { 4,2,2 }, { 4,2,1 }
+};
/* Default hsync timing [mon_type] in picoseconds */
-static long h_syncs[4] = {3000000, 4875000, 4000000, 4875000};
+static long h_syncs[4] = { 3000000, 4875000, 4000000, 4875000 };
#ifdef FBCON_HAS_CFB16
static u16 fbcon_cfb16_cmap[16];
static inline int hxx_prescale(struct falcon_hw *hw)
{
- return hw->ste_mode ? 16 :
- vdl_prescale[mon_type][hw->vid_mode >> 2 & 0x3];
+ return hw->ste_mode ? 16
+ : vdl_prescale[mon_type][hw->vid_mode >> 2 & 0x3];
}
-static int falcon_encode_fix( struct fb_fix_screeninfo *fix,
- struct atafb_par *par )
+static int falcon_encode_fix(struct fb_fix_screeninfo *fix,
+ struct atafb_par *par)
{
strcpy(fix->id, "Atari Builtin");
fix->smem_start = (unsigned long)real_screen_base;
fix->type_aux = 0;
/* no smooth scrolling with longword aligned video mem */
fix->xpanstep = 32;
- }
- else if (par->hw.falcon.f_shift & 0x100) {
+ } else if (par->hw.falcon.f_shift & 0x100) {
fix->type = FB_TYPE_PACKED_PIXELS;
fix->type_aux = 0;
/* Is this ok or should it be DIRECTCOLOR? */
return 0;
}
-
-static int falcon_decode_var( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int falcon_decode_var(struct fb_var_screeninfo *var,
+ struct atafb_par *par)
{
int bpp = var->bits_per_pixel;
int xres = var->xres;
int linelen;
int interlace = 0, doubleline = 0;
struct pixel_clock *pclock;
- int plen; /* width of pixel in clock cycles */
+ int plen; /* width of pixel in clock cycles */
int xstretch;
int prescale;
int longoffset = 0;
int hfreq, vfreq;
+ int hdb_off, hde_off, base_off;
+ int gstart, gend1, gend2, align;
/*
Get the video params out of 'var'. If a value doesn't fit, round
it up, if it's too big, return EINVAL.
- Round up in the following order: bits_per_pixel, xres, yres,
- xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields,
+ Round up in the following order: bits_per_pixel, xres, yres,
+ xres_virtual, yres_virtual, xoffset, yoffset, grayscale, bitfields,
horizontal timing, vertical timing.
There is a maximum of screen resolution determined by pixelclock
Frequency range for multisync monitors is given via command line.
For TV and SM124 both frequencies are fixed.
- X % 16 == 0 to fit 8x?? font (except 1 bitplane modes must use X%32==0)
+ X % 16 == 0 to fit 8x?? font (except 1 bitplane modes must use X%32 == 0)
Y % 16 == 0 to fit 8x16 font
Y % 8 == 0 if Y<400
- Currently interlace and doubleline mode in var are ignored.
+ Currently interlace and doubleline mode in var are ignored.
On SM124 and TV only the standard resolutions can be used.
*/
if (!xres || !yres || !bpp)
return -EINVAL;
- if (mon_type == F_MON_SM && bpp != 1) {
+ if (mon_type == F_MON_SM && bpp != 1)
return -EINVAL;
- }
- else if (bpp <= 1) {
+
+ if (bpp <= 1) {
bpp = 1;
par->hw.falcon.f_shift = 0x400;
par->hw.falcon.st_shift = 0x200;
- }
- else if (bpp <= 2) {
+ } else if (bpp <= 2) {
bpp = 2;
par->hw.falcon.f_shift = 0x000;
par->hw.falcon.st_shift = 0x100;
- }
- else if (bpp <= 4) {
+ } else if (bpp <= 4) {
bpp = 4;
par->hw.falcon.f_shift = 0x000;
par->hw.falcon.st_shift = 0x000;
- }
- else if (bpp <= 8) {
+ } else if (bpp <= 8) {
bpp = 8;
par->hw.falcon.f_shift = 0x010;
- }
- else if (bpp <= 16) {
- bpp = 16; /* packed pixel mode */
- par->hw.falcon.f_shift = 0x100; /* hicolor, no overlay */
- }
- else
+ } else if (bpp <= 16) {
+ bpp = 16; /* packed pixel mode */
+ par->hw.falcon.f_shift = 0x100; /* hicolor, no overlay */
+ } else
return -EINVAL;
par->hw.falcon.bpp = bpp;
if (mon_type == F_MON_SM || DontCalcRes) {
/* Skip all calculations. VGA/TV/SC1224 only supported. */
struct fb_var_screeninfo *myvar = &atafb_predefined[0];
-
+
if (bpp > myvar->bits_per_pixel ||
- var->xres > myvar->xres ||
- var->yres > myvar->yres)
+ var->xres > myvar->xres ||
+ var->yres > myvar->yres)
return -EINVAL;
fbhw->get_par(par); /* Current par will be new par */
goto set_screen_base; /* Don't forget this */
yres = 400;
/* 2 planes must use STE compatibility mode */
- par->hw.falcon.ste_mode = bpp==2;
- par->hw.falcon.mono = bpp==1;
+ par->hw.falcon.ste_mode = bpp == 2;
+ par->hw.falcon.mono = bpp == 1;
/* Total and visible scanline length must be a multiple of one longword,
* this and the console fontwidth yields the alignment for xres and
left_margin = hsync_len = 128 / plen;
right_margin = 0;
/* TODO set all margins */
- }
- else
+ } else
#endif
if (mon_type == F_MON_SC || mon_type == F_MON_TV) {
plen = 2 * xstretch;
vsync_len *= 2;
}
}
- }
- else
- { /* F_MON_VGA */
+ } else { /* F_MON_VGA */
if (bpp == 16)
- xstretch = 2; /* Double pixel width only for hicolor */
+ xstretch = 2; /* Double pixel width only for hicolor */
/* Default values are used for vert./hor. timing if no pixelclock given. */
if (var->pixclock == 0) {
int linesize;
/* Choose master pixelclock depending on hor. timing */
plen = 1 * xstretch;
- if ((plen * xres + f25.right+f25.hsync+f25.left) *
+ if ((plen * xres + f25.right + f25.hsync + f25.left) *
fb_info.monspecs.hfmin < f25.f)
pclock = &f25;
- else if ((plen * xres + f32.right+f32.hsync+f32.left) *
- fb_info.monspecs.hfmin < f32.f)
+ else if ((plen * xres + f32.right + f32.hsync +
+ f32.left) * fb_info.monspecs.hfmin < f32.f)
pclock = &f32;
- else if ((plen * xres + fext.right+fext.hsync+fext.left) *
- fb_info.monspecs.hfmin < fext.f
- && fext.f)
+ else if ((plen * xres + fext.right + fext.hsync +
+ fext.left) * fb_info.monspecs.hfmin < fext.f &&
+ fext.f)
pclock = &fext;
else
return -EINVAL;
upper_margin = 31;
lower_margin = 11;
vsync_len = 3;
- }
- else {
+ } else {
/* Choose largest pixelclock <= wanted clock */
int i;
unsigned long pcl = ULONG_MAX;
pclock = 0;
- for (i=1; i <= 4; i *= 2) {
- if (f25.t*i >= var->pixclock && f25.t*i < pcl) {
+ for (i = 1; i <= 4; i *= 2) {
+ if (f25.t * i >= var->pixclock &&
+ f25.t * i < pcl) {
pcl = f25.t * i;
pclock = &f25;
}
- if (f32.t*i >= var->pixclock && f32.t*i < pcl) {
+ if (f32.t * i >= var->pixclock &&
+ f32.t * i < pcl) {
pcl = f32.t * i;
pclock = &f32;
}
- if (fext.t && fext.t*i >= var->pixclock && fext.t*i < pcl) {
+ if (fext.t && fext.t * i >= var->pixclock &&
+ fext.t * i < pcl) {
pcl = fext.t * i;
pclock = &fext;
}
upper_margin = (upper_margin + 1) / 2;
lower_margin = (lower_margin + 1) / 2;
vsync_len = (vsync_len + 1) / 2;
- }
- else if (var->vmode & FB_VMODE_DOUBLE) {
+ } else if (var->vmode & FB_VMODE_DOUBLE) {
/* External unit is [double lines per frame] */
upper_margin *= 2;
lower_margin *= 2;
}
}
if (pclock == &fext)
- longoffset = 1; /* VIDEL doesn't synchronize on short offset */
+ longoffset = 1; /* VIDEL doesn't synchronize on short offset */
}
/* Is video bus bandwidth (32MB/s) too low for this resolution? */
/* this is definitely wrong if bus clock != 32MHz */
* between interlace and non-interlace without messing around
* with these.
*/
- again:
+again:
/* Set base_offset 128 and video bus width */
par->hw.falcon.vid_control = mon_type | f030_bus_width;
if (!longoffset)
/* External or internal clock */
par->hw.falcon.sync = pclock->sync_mask | 0x2;
/* Pixellength and prescale */
- par->hw.falcon.vid_mode = (2/plen) << 2;
+ par->hw.falcon.vid_mode = (2 / plen) << 2;
if (doubleline)
par->hw.falcon.vid_mode |= VMO_DOUBLE;
if (interlace)
par->hw.falcon.vid_mode |= VMO_INTER;
/*********************
- Horizontal timing: unit = [master clock cycles]
- unit of hxx-registers: [master clock cycles * prescale]
- Hxx-registers are 9 bit wide
-
- 1 line = ((hht + 2) * 2 * prescale) clock cycles
-
- graphic output = hdb & 0x200 ?
- ((hht+2)*2 - hdb + hde) * prescale - hdboff + hdeoff:
- ( hht + 2 - hdb + hde) * prescale - hdboff + hdeoff
- (this must be a multiple of plen*128/bpp, on VGA pixels
- to the right may be cut off with a bigger right margin)
-
- start of graphics relative to start of 1st halfline = hdb & 0x200 ?
- (hdb - hht - 2) * prescale + hdboff :
- hdb * prescale + hdboff
-
- end of graphics relative to start of 1st halfline =
- (hde + hht + 2) * prescale + hdeoff
- *********************/
+ * Horizontal timing: unit = [master clock cycles]
+ * unit of hxx-registers: [master clock cycles * prescale]
+ * Hxx-registers are 9 bit wide
+ *
+ * 1 line = ((hht + 2) * 2 * prescale) clock cycles
+ *
+ * graphic output = hdb & 0x200 ?
+ * ((hht + 2) * 2 - hdb + hde) * prescale - hdboff + hdeoff:
+ * (hht + 2 - hdb + hde) * prescale - hdboff + hdeoff
+ * (this must be a multiple of plen*128/bpp, on VGA pixels
+ * to the right may be cut off with a bigger right margin)
+ *
+ * start of graphics relative to start of 1st halfline = hdb & 0x200 ?
+ * (hdb - hht - 2) * prescale + hdboff :
+ * hdb * prescale + hdboff
+ *
+ * end of graphics relative to start of 1st halfline =
+ * (hde + hht + 2) * prescale + hdeoff
+ *********************/
/* Calculate VIDEL registers */
- {
- int hdb_off, hde_off, base_off;
- int gstart, gend1, gend2, align;
-
+{
prescale = hxx_prescale(&par->hw.falcon);
base_off = par->hw.falcon.vid_control & VCO_SHORTOFFS ? 64 : 128;
align = 1;
hde_off = 0;
hdb_off = (base_off + 16 * plen) + prescale;
- }
- else {
+ } else {
align = 128 / bpp;
hde_off = ((128 / bpp + 2) * plen);
if (par->hw.falcon.ste_mode)
hdb_off = (base_off + (128 / bpp + 18) * plen) + prescale;
}
- gstart = (prescale/2 + plen * left_margin) / prescale;
+ gstart = (prescale / 2 + plen * left_margin) / prescale;
/* gend1 is for hde (gend-gstart multiple of align), shifter's xres */
- gend1 = gstart + ((xres + align-1) / align)*align * plen / prescale;
+ gend1 = gstart + ((xres + align - 1) / align) * align * plen / prescale;
/* gend2 is for hbb, visible xres (rest to gend1 is cut off by hblank) */
gend2 = gstart + xres * plen / prescale;
par->HHT = plen * (left_margin + xres + right_margin) /
(2 * prescale) - 2;
/* par->HHT = (gend2 + plen * right_margin / prescale) / 2 - 2;*/
- par->HDB = gstart - hdb_off/prescale;
+ par->HDB = gstart - hdb_off / prescale;
par->HBE = gstart;
- if (par->HDB < 0) par->HDB += par->HHT + 2 + 0x200;
- par->HDE = gend1 - par->HHT - 2 - hde_off/prescale;
+ if (par->HDB < 0)
+ par->HDB += par->HHT + 2 + 0x200;
+ par->HDE = gend1 - par->HHT - 2 - hde_off / prescale;
par->HBB = gend2 - par->HHT - 2;
#if 0
/* One more Videl constraint: data fetch of two lines must not overlap */
- if ((par->HDB & 0x200) && (par->HDB & ~0x200) - par->HDE <= 5) {
+ if ((par->HDB & 0x200) && (par->HDB & ~0x200) - par->HDE <= 5) {
/* if this happens increase margins, decrease hfreq. */
}
#endif
par->HSS = par->HHT + 2 - plen * hsync_len / prescale;
if (par->HSS < par->HBB)
par->HSS = par->HBB;
- }
+}
/* check hor. frequency */
- hfreq = pclock->f / ((par->HHT+2)*prescale*2);
- if (hfreq > fb_info.monspecs.hfmax && mon_type!=F_MON_VGA) {
+ hfreq = pclock->f / ((par->HHT + 2) * prescale * 2);
+ if (hfreq > fb_info.monspecs.hfmax && mon_type != F_MON_VGA) {
/* ++guenther: ^^^^^^^^^^^^^^^^^^^ can't remember why I did this */
/* Too high -> enlarge margin */
left_margin += 1;
par->VBE = (upper_margin * 2 + 1); /* must begin on odd halfline */
par->VDB = par->VBE;
par->VDE = yres;
- if (!interlace) par->VDE <<= 1;
- if (doubleline) par->VDE <<= 1; /* VDE now half lines per (half-)frame */
+ if (!interlace)
+ par->VDE <<= 1;
+ if (doubleline)
+ par->VDE <<= 1; /* VDE now half lines per (half-)frame */
par->VDE += par->VDB;
par->VBB = par->VDE;
par->VFT = par->VBB + (lower_margin * 2 - 1) - 1;
- par->VSS = par->VFT+1 - (vsync_len * 2 - 1);
+ par->VSS = par->VFT + 1 - (vsync_len * 2 - 1);
/* vbb,vss,vft must be even in interlace mode */
if (interlace) {
par->VBB++;
/* V-frequency check, hope I didn't create any loop here. */
/* Interlace and doubleline are mutually exclusive. */
vfreq = (hfreq * 2) / (par->VFT + 1);
- if (vfreq > fb_info.monspecs.vfmax && !doubleline && !interlace) {
+ if (vfreq > fb_info.monspecs.vfmax && !doubleline && !interlace) {
/* Too high -> try again with doubleline */
doubleline = 1;
goto again;
- }
- else if (vfreq < fb_info.monspecs.vfmin && !interlace && !doubleline) {
+ } else if (vfreq < fb_info.monspecs.vfmin && !interlace && !doubleline) {
/* Too low -> try again with interlace */
interlace = 1;
goto again;
- }
- else if (vfreq < fb_info.monspecs.vfmin && doubleline) {
+ } else if (vfreq < fb_info.monspecs.vfmin && doubleline) {
/* Doubleline too low -> clear doubleline and enlarge margins */
int lines;
doubleline = 0;
- for (lines=0;
- (hfreq*2)/(par->VFT+1+4*lines-2*yres)>fb_info.monspecs.vfmax;
+ for (lines = 0;
+ (hfreq * 2) / (par->VFT + 1 + 4 * lines - 2 * yres) >
+ fb_info.monspecs.vfmax;
lines++)
;
upper_margin += lines;
lower_margin += lines;
goto again;
- }
- else if (vfreq > fb_info.monspecs.vfmax && doubleline) {
+ } else if (vfreq > fb_info.monspecs.vfmax && doubleline) {
/* Doubleline too high -> enlarge margins */
int lines;
- for (lines=0;
- (hfreq*2)/(par->VFT+1+4*lines)>fb_info.monspecs.vfmax;
- lines+=2)
+ for (lines = 0;
+ (hfreq * 2) / (par->VFT + 1 + 4 * lines) >
+ fb_info.monspecs.vfmax;
+ lines += 2)
;
upper_margin += lines;
lower_margin += lines;
goto again;
- }
- else if (vfreq > fb_info.monspecs.vfmax && interlace) {
+ } else if (vfreq > fb_info.monspecs.vfmax && interlace) {
/* Interlace, too high -> enlarge margins */
int lines;
- for (lines=0;
- (hfreq*2)/(par->VFT+1+4*lines)>fb_info.monspecs.vfmax;
+ for (lines = 0;
+ (hfreq * 2) / (par->VFT + 1 + 4 * lines) >
+ fb_info.monspecs.vfmax;
lines++)
;
upper_margin += lines;
lower_margin += lines;
goto again;
- }
- else if (vfreq < fb_info.monspecs.vfmin ||
- vfreq > fb_info.monspecs.vfmax)
+ } else if (vfreq < fb_info.monspecs.vfmin ||
+ vfreq > fb_info.monspecs.vfmax)
return -EINVAL;
- set_screen_base:
+set_screen_base:
linelen = xres_virtual * bpp / 8;
if (yres_virtual * linelen > screen_len && screen_len)
return -EINVAL;
par->screen_base = screen_base + var->yoffset * linelen;
par->hw.falcon.xoffset = 0;
+ // FIXME!!! sort of works, no crash
+ //par->next_line = linelen;
+ //par->next_plane = yres_virtual * linelen;
+ par->next_line = linelen;
+ par->next_plane = 2;
+ // crashes
+ //par->next_plane = linelen;
+ //par->next_line = yres_virtual * linelen;
+
return 0;
}
-static int falcon_encode_var( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int falcon_encode_var(struct fb_var_screeninfo *var,
+ struct atafb_par *par)
{
/* !!! only for VGA !!! */
int linelen;
var->pixclock = hw->sync & 0x1 ? fext.t :
hw->vid_control & VCO_CLOCK25 ? f25.t : f32.t;
- var->height=-1;
- var->width=-1;
+ var->height = -1;
+ var->width = -1;
- var->sync=0;
+ var->sync = 0;
if (hw->vid_control & VCO_HSYPOS)
var->sync |= FB_SYNC_HOR_HIGH_ACT;
if (hw->vid_control & VCO_VSYPOS)
var->vmode |= FB_VMODE_INTERLACED;
if (hw->vid_mode & VMO_DOUBLE)
var->vmode |= FB_VMODE_DOUBLE;
-
+
/* visible y resolution:
* Graphics display starts at line VDB and ends at line
* VDE. If interlace mode off unit of VC-registers is
if (var->vmode & FB_VMODE_DOUBLE)
var->yres >>= 1;
- /* to get bpp, we must examine f_shift and st_shift.
+ /*
+ * to get bpp, we must examine f_shift and st_shift.
* f_shift is valid if any of bits no. 10, 8 or 4
* is set. Priority in f_shift is: 10 ">" 8 ">" 4, i.e.
* if bit 10 set then bit 8 and bit 4 don't care...
* If all these bits are 0 get display depth from st_shift
* (as for ST and STE)
*/
- if (hw->f_shift & 0x400) /* 2 colors */
+ if (hw->f_shift & 0x400) /* 2 colors */
var->bits_per_pixel = 1;
else if (hw->f_shift & 0x100) /* hicolor */
var->bits_per_pixel = 16;
var->bits_per_pixel = 4;
else if (hw->st_shift == 0x100)
var->bits_per_pixel = 2;
- else /* if (hw->st_shift == 0x200) */
+ else /* if (hw->st_shift == 0x200) */
var->bits_per_pixel = 1;
var->xres = hw->line_width * 16 / var->bits_per_pixel;
var->xres_virtual += 16;
if (var->bits_per_pixel == 16) {
- var->red.offset=11;
- var->red.length=5;
- var->red.msb_right=0;
- var->green.offset=5;
- var->green.length=6;
- var->green.msb_right=0;
- var->blue.offset=0;
- var->blue.length=5;
- var->blue.msb_right=0;
- }
- else {
- var->red.offset=0;
+ var->red.offset = 11;
+ var->red.length = 5;
+ var->red.msb_right = 0;
+ var->green.offset = 5;
+ var->green.length = 6;
+ var->green.msb_right = 0;
+ var->blue.offset = 0;
+ var->blue.length = 5;
+ var->blue.msb_right = 0;
+ } else {
+ var->red.offset = 0;
var->red.length = hw->ste_mode ? 4 : 6;
- var->red.msb_right=0;
- var->grayscale=0;
- var->blue=var->green=var->red;
+ if (var->red.length > var->bits_per_pixel)
+ var->red.length = var->bits_per_pixel;
+ var->red.msb_right = 0;
+ var->grayscale = 0;
+ var->blue = var->green = var->red;
}
- var->transp.offset=0;
- var->transp.length=0;
- var->transp.msb_right=0;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->transp.msb_right = 0;
linelen = var->xres_virtual * var->bits_per_pixel / 8;
if (screen_len) {
if (par->yres_virtual)
var->yres_virtual = par->yres_virtual;
else
- /* yres_virtual==0 means use maximum */
+ /* yres_virtual == 0 means use maximum */
var->yres_virtual = screen_len / linelen;
- }
- else {
+ } else {
if (hwscroll < 0)
var->yres_virtual = 2 * var->yres;
else
- var->yres_virtual=var->yres+hwscroll * 16;
+ var->yres_virtual = var->yres + hwscroll * 16;
}
- var->xoffset=0; /* TODO change this */
+ var->xoffset = 0; /* TODO change this */
/* hdX-offsets */
prescale = hxx_prescale(hw);
if (hw->f_shift & 0x100) {
hde_off = 0;
hdb_off = (base_off + 16 * plen) + prescale;
- }
- else {
+ } else {
hde_off = ((128 / var->bits_per_pixel + 2) * plen);
if (hw->ste_mode)
hdb_off = (64 + base_off + (128 / var->bits_per_pixel + 2) * plen)
/* Right margin includes hsync */
var->left_margin = hdb_off + prescale * ((hw->hdb & 0x1ff) -
- (hw->hdb & 0x200 ? 2+hw->hht : 0));
- if (hw->ste_mode || mon_type!=F_MON_VGA)
+ (hw->hdb & 0x200 ? 2 + hw->hht : 0));
+ if (hw->ste_mode || mon_type != F_MON_VGA)
var->right_margin = prescale * (hw->hht + 2 - hw->hde) - hde_off;
else
/* can't use this in ste_mode, because hbb is +1 off */
var->hsync_len = prescale * (hw->hht + 2 - hw->hss);
/* Lower margin includes vsync */
- var->upper_margin = hw->vdb / 2 ; /* round down to full lines */
- var->lower_margin = (hw->vft+1 - hw->vde + 1) / 2; /* round up */
- var->vsync_len = (hw->vft+1 - hw->vss + 1) / 2; /* round up */
+ var->upper_margin = hw->vdb / 2; /* round down to full lines */
+ var->lower_margin = (hw->vft + 1 - hw->vde + 1) / 2; /* round up */
+ var->vsync_len = (hw->vft + 1 - hw->vss + 1) / 2; /* round up */
if (var->vmode & FB_VMODE_INTERLACED) {
var->upper_margin *= 2;
var->lower_margin *= 2;
var->vsync_len *= 2;
- }
- else if (var->vmode & FB_VMODE_DOUBLE) {
+ } else if (var->vmode & FB_VMODE_DOUBLE) {
var->upper_margin = (var->upper_margin + 1) / 2;
var->lower_margin = (var->lower_margin + 1) / 2;
var->vsync_len = (var->vsync_len + 1) / 2;
var->lower_margin -= var->vsync_len;
if (screen_base)
- var->yoffset=(par->screen_base - screen_base)/linelen;
+ var->yoffset = (par->screen_base - screen_base) / linelen;
else
- var->yoffset=0;
- var->nonstd=0; /* what is this for? */
- var->activate=0;
+ var->yoffset = 0;
+ var->nonstd = 0; /* what is this for? */
+ var->activate = 0;
return 0;
}
-
-static int f_change_mode = 0;
+static int f_change_mode;
static struct falcon_hw f_new_mode;
-static int f_pan_display = 0;
+static int f_pan_display;
-static void falcon_get_par( struct atafb_par *par )
+static void falcon_get_par(struct atafb_par *par)
{
unsigned long addr;
struct falcon_hw *hw = &par->hw.falcon;
par->screen_base = phys_to_virt(addr);
/* derived parameters */
- hw->ste_mode = (hw->f_shift & 0x510)==0 && hw->st_shift==0x100;
+ hw->ste_mode = (hw->f_shift & 0x510) == 0 && hw->st_shift == 0x100;
hw->mono = (hw->f_shift & 0x400) ||
- ((hw->f_shift & 0x510)==0 && hw->st_shift==0x200);
+ ((hw->f_shift & 0x510) == 0 && hw->st_shift == 0x200);
}
-static void falcon_set_par( struct atafb_par *par )
+static void falcon_set_par(struct atafb_par *par)
{
f_change_mode = 0;
f_change_mode = 1;
}
-
-static irqreturn_t falcon_vbl_switcher( int irq, void *dummy )
+static irqreturn_t falcon_vbl_switcher(int irq, void *dummy)
{
struct falcon_hw *hw = &f_new_mode;
if (hw->sync & 0x1) {
/* Enable external pixelclock. This code only for ScreenWonder */
- *(volatile unsigned short*)0xffff9202 = 0xffbf;
- }
- else {
+ *(volatile unsigned short *)0xffff9202 = 0xffbf;
+ } else {
/* Turn off external clocks. Read sets all output bits to 1. */
- *(volatile unsigned short*)0xffff9202;
+ *(volatile unsigned short *)0xffff9202;
}
shifter.syncmode = hw->sync;
videl.vde = hw->vde;
videl.vss = hw->vss;
- videl.f_shift = 0; /* write enables Falcon palette, 0: 4 planes */
+ videl.f_shift = 0; /* write enables Falcon palette, 0: 4 planes */
if (hw->ste_mode) {
- videl.st_shift = hw->st_shift; /* write enables STE palette */
- }
- else {
+ videl.st_shift = hw->st_shift; /* write enables STE palette */
+ } else {
/* IMPORTANT:
- * set st_shift 0, so we can tell the screen-depth if f_shift==0.
+ * set st_shift 0, so we can tell the screen-depth if f_shift == 0.
* Writing 0 to f_shift enables 4 plane Falcon mode but
- * doesn't set st_shift. st_shift!=0 (!=4planes) is impossible
+ * doesn't set st_shift. st_shift != 0 (!= 4planes) is impossible
* with Falcon palette.
*/
videl.st_shift = 0;
return IRQ_HANDLED;
}
-
-static int falcon_pan_display( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int falcon_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
{
+ struct atafb_par *par = (struct atafb_par *)info->par;
+
int xoffset;
- int bpp = fb_display[fb_info.currcon].var.bits_per_pixel;
+ int bpp = info->var.bits_per_pixel;
if (bpp == 1)
var->xoffset = up(var->xoffset, 32);
var->xoffset = up(var->xoffset, 2);
}
par->hw.falcon.line_offset = bpp *
- (fb_display[fb_info.currcon].var.xres_virtual - fb_display[fb_info.currcon].var.xres) / 16;
+ (info->var.xres_virtual - info->var.xres) / 16;
if (par->hw.falcon.xoffset)
par->hw.falcon.line_offset -= bpp;
xoffset = var->xoffset - par->hw.falcon.xoffset;
par->screen_base = screen_base +
- (var->yoffset * fb_display[fb_info.currcon].var.xres_virtual + xoffset) * bpp / 8;
+ (var->yoffset * info->var.xres_virtual + xoffset) * bpp / 8;
if (fbhw->set_screen_base)
- fbhw->set_screen_base (par->screen_base);
+ fbhw->set_screen_base(par->screen_base);
else
- return -EINVAL; /* shouldn't happen */
+ return -EINVAL; /* shouldn't happen */
f_pan_display = 1;
return 0;
}
-
-static int falcon_getcolreg( unsigned regno, unsigned *red,
- unsigned *green, unsigned *blue,
- unsigned *transp, struct fb_info *info )
-{ unsigned long col;
-
- if (regno > 255)
- return 1;
- /* This works in STE-mode (with 4bit/color) since f030_col-registers
- * hold up to 6bit/color.
- * Even with hicolor r/g/b=5/6/5 bit!
- */
- col = f030_col[regno];
- *red = (col >> 16) & 0xff00;
- *green = (col >> 8) & 0xff00;
- *blue = (col << 8) & 0xff00;
- *transp = 0;
- return 0;
-}
-
-
-static int falcon_setcolreg( unsigned regno, unsigned red,
- unsigned green, unsigned blue,
- unsigned transp, struct fb_info *info )
+static int falcon_setcolreg(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ unsigned int transp, struct fb_info *info)
{
if (regno > 255)
return 1;
return 0;
}
-
-static int falcon_blank( int blank_mode )
+static int falcon_blank(int blank_mode)
{
-/* ++guenther: we can switch off graphics by changing VDB and VDE,
- * so VIDEL doesn't hog the bus while saving.
- * (this may affect usleep()).
- */
+ /* ++guenther: we can switch off graphics by changing VDB and VDE,
+ * so VIDEL doesn't hog the bus while saving.
+ * (this may affect usleep()).
+ */
int vdb, vss, hbe, hss;
if (mon_type == F_MON_SM) /* this doesn't work on SM124 */
return 0;
}
-
-static int falcon_detect( void )
+static int falcon_detect(void)
{
struct atafb_par par;
unsigned char fhw;
/* Determine connected monitor and set monitor parameters */
- fhw = *(unsigned char*)0xffff8006;
+ fhw = *(unsigned char *)0xffff8006;
mon_type = fhw >> 6 & 0x3;
/* bit 1 of fhw: 1=32 bit ram bus, 0=16 bit */
f030_bus_width = fhw << 6 & 0x80;
case F_MON_SC:
case F_MON_TV:
/* PAL...NTSC */
- fb_info.monspecs.vfmin = 49; /* not 50, since TOS defaults to 49.9x Hz */
+ fb_info.monspecs.vfmin = 49; /* not 50, since TOS defaults to 49.9x Hz */
fb_info.monspecs.vfmax = 60;
fb_info.monspecs.hfmin = 15620;
fb_info.monspecs.hfmax = 15755;
#ifdef ATAFB_STE
-static int stste_encode_fix( struct fb_fix_screeninfo *fix,
- struct atafb_par *par )
-
+static int stste_encode_fix(struct fb_fix_screeninfo *fix,
+ struct atafb_par *par)
{
int mode;
- strcpy(fix->id,"Atari Builtin");
+ strcpy(fix->id, "Atari Builtin");
fix->smem_start = (unsigned long)real_screen_base;
fix->smem_len = screen_len;
fix->type = FB_TYPE_INTERLEAVED_PLANES;
return 0;
}
-
-static int stste_decode_var( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int stste_decode_var(struct fb_var_screeninfo *var,
+ struct atafb_par *par)
{
- int xres=var->xres;
- int yres=var->yres;
- int bpp=var->bits_per_pixel;
+ int xres = var->xres;
+ int yres = var->yres;
+ int bpp = var->bits_per_pixel;
int linelen;
int yres_virtual = var->yres_virtual;
if (mono_moni) {
if (bpp > 1 || xres > sttt_xres || yres > st_yres)
return -EINVAL;
- par->hw.st.mode=ST_HIGH;
- xres=sttt_xres;
- yres=st_yres;
- bpp=1;
+ par->hw.st.mode = ST_HIGH;
+ xres = sttt_xres;
+ yres = st_yres;
+ bpp = 1;
} else {
if (bpp > 4 || xres > sttt_xres || yres > st_yres)
return -EINVAL;
if (bpp > 2) {
- if (xres > sttt_xres/2 || yres > st_yres/2)
+ if (xres > sttt_xres / 2 || yres > st_yres / 2)
return -EINVAL;
- par->hw.st.mode=ST_LOW;
- xres=sttt_xres/2;
- yres=st_yres/2;
- bpp=4;
- }
- else if (bpp > 1) {
- if (xres > sttt_xres || yres > st_yres/2)
+ par->hw.st.mode = ST_LOW;
+ xres = sttt_xres / 2;
+ yres = st_yres / 2;
+ bpp = 4;
+ } else if (bpp > 1) {
+ if (xres > sttt_xres || yres > st_yres / 2)
return -EINVAL;
- par->hw.st.mode=ST_MID;
- xres=sttt_xres;
- yres=st_yres/2;
- bpp=2;
- }
- else
+ par->hw.st.mode = ST_MID;
+ xres = sttt_xres;
+ yres = st_yres / 2;
+ bpp = 2;
+ } else
return -EINVAL;
}
if (yres_virtual <= 0)
else if (yres_virtual < yres)
yres_virtual = yres;
if (var->sync & FB_SYNC_EXT)
- par->hw.st.sync=(par->hw.st.sync & ~1) | 1;
+ par->hw.st.sync = (par->hw.st.sync & ~1) | 1;
else
- par->hw.st.sync=(par->hw.st.sync & ~1);
- linelen=xres*bpp/8;
+ par->hw.st.sync = (par->hw.st.sync & ~1);
+ linelen = xres * bpp / 8;
if (yres_virtual * linelen > screen_len && screen_len)
return -EINVAL;
if (yres * linelen > screen_len && screen_len)
if (var->yoffset + yres > yres_virtual && yres_virtual)
return -EINVAL;
par->yres_virtual = yres_virtual;
- par->screen_base=screen_base+ var->yoffset*linelen;
+ par->screen_base = screen_base + var->yoffset * linelen;
return 0;
}
-static int stste_encode_var( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int stste_encode_var(struct fb_var_screeninfo *var,
+ struct atafb_par *par)
{
int linelen;
memset(var, 0, sizeof(struct fb_var_screeninfo));
- var->red.offset=0;
+ var->red.offset = 0;
var->red.length = ATARIHW_PRESENT(EXTD_SHIFTER) ? 4 : 3;
- var->red.msb_right=0;
- var->grayscale=0;
+ var->red.msb_right = 0;
+ var->grayscale = 0;
- var->pixclock=31041;
- var->left_margin=120; /* these are incorrect */
- var->right_margin=100;
- var->upper_margin=8;
- var->lower_margin=16;
- var->hsync_len=140;
- var->vsync_len=30;
+ var->pixclock = 31041;
+ var->left_margin = 120; /* these are incorrect */
+ var->right_margin = 100;
+ var->upper_margin = 8;
+ var->lower_margin = 16;
+ var->hsync_len = 140;
+ var->vsync_len = 30;
- var->height=-1;
- var->width=-1;
+ var->height = -1;
+ var->width = -1;
if (!(par->hw.st.sync & 1))
- var->sync=0;
+ var->sync = 0;
else
- var->sync=FB_SYNC_EXT;
+ var->sync = FB_SYNC_EXT;
switch (par->hw.st.mode & 3) {
case ST_LOW:
- var->xres=sttt_xres/2;
- var->yres=st_yres/2;
- var->bits_per_pixel=4;
+ var->xres = sttt_xres / 2;
+ var->yres = st_yres / 2;
+ var->bits_per_pixel = 4;
break;
case ST_MID:
- var->xres=sttt_xres;
- var->yres=st_yres/2;
- var->bits_per_pixel=2;
+ var->xres = sttt_xres;
+ var->yres = st_yres / 2;
+ var->bits_per_pixel = 2;
break;
case ST_HIGH:
- var->xres=sttt_xres;
- var->yres=st_yres;
- var->bits_per_pixel=1;
+ var->xres = sttt_xres;
+ var->yres = st_yres;
+ var->bits_per_pixel = 1;
break;
- }
- var->blue=var->green=var->red;
- var->transp.offset=0;
- var->transp.length=0;
- var->transp.msb_right=0;
- var->xres_virtual=sttt_xres_virtual;
- linelen=var->xres_virtual * var->bits_per_pixel / 8;
- ovsc_addlen=linelen*(sttt_yres_virtual - st_yres);
-
- if (! use_hwscroll)
- var->yres_virtual=var->yres;
+ }
+ var->blue = var->green = var->red;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->transp.msb_right = 0;
+ var->xres_virtual = sttt_xres_virtual;
+ linelen = var->xres_virtual * var->bits_per_pixel / 8;
+ ovsc_addlen = linelen * (sttt_yres_virtual - st_yres);
+
+ if (!use_hwscroll)
+ var->yres_virtual = var->yres;
else if (screen_len) {
if (par->yres_virtual)
var->yres_virtual = par->yres_virtual;
else
- /* yres_virtual==0 means use maximum */
+ /* yres_virtual == 0 means use maximum */
var->yres_virtual = screen_len / linelen;
- }
- else {
+ } else {
if (hwscroll < 0)
var->yres_virtual = 2 * var->yres;
else
- var->yres_virtual=var->yres+hwscroll * 16;
+ var->yres_virtual = var->yres + hwscroll * 16;
}
- var->xoffset=0;
+ var->xoffset = 0;
if (screen_base)
- var->yoffset=(par->screen_base - screen_base)/linelen;
+ var->yoffset = (par->screen_base - screen_base) / linelen;
else
- var->yoffset=0;
- var->nonstd=0;
- var->activate=0;
- var->vmode=FB_VMODE_NONINTERLACED;
+ var->yoffset = 0;
+ var->nonstd = 0;
+ var->activate = 0;
+ var->vmode = FB_VMODE_NONINTERLACED;
return 0;
}
-
-static void stste_get_par( struct atafb_par *par )
+static void stste_get_par(struct atafb_par *par)
{
unsigned long addr;
- par->hw.st.mode=shifter_tt.st_shiftmode;
- par->hw.st.sync=shifter.syncmode;
+ par->hw.st.mode = shifter_tt.st_shiftmode;
+ par->hw.st.sync = shifter.syncmode;
addr = ((shifter.bas_hi & 0xff) << 16) |
((shifter.bas_md & 0xff) << 8);
if (ATARIHW_PRESENT(EXTD_SHIFTER))
par->screen_base = phys_to_virt(addr);
}
-static void stste_set_par( struct atafb_par *par )
+static void stste_set_par(struct atafb_par *par)
{
- shifter_tt.st_shiftmode=par->hw.st.mode;
- shifter.syncmode=par->hw.st.sync;
+ shifter_tt.st_shiftmode = par->hw.st.mode;
+ shifter.syncmode = par->hw.st.sync;
/* only set screen_base if really necessary */
if (current_par.screen_base != par->screen_base)
fbhw->set_screen_base(par->screen_base);
}
-
-static int stste_getcolreg(unsigned regno, unsigned *red,
- unsigned *green, unsigned *blue,
- unsigned *transp, struct fb_info *info)
-{
- unsigned col, t;
-
- if (regno > 15)
- return 1;
- col = shifter_tt.color_reg[regno];
- if (ATARIHW_PRESENT(EXTD_SHIFTER)) {
- t = ((col >> 7) & 0xe) | ((col >> 11) & 1);
- t |= t << 4;
- *red = t | (t << 8);
- t = ((col >> 3) & 0xe) | ((col >> 7) & 1);
- t |= t << 4;
- *green = t | (t << 8);
- t = ((col << 1) & 0xe) | ((col >> 3) & 1);
- t |= t << 4;
- *blue = t | (t << 8);
- }
- else {
- t = (col >> 7) & 0xe;
- t |= t << 4;
- *red = t | (t << 8);
- t = (col >> 3) & 0xe;
- t |= t << 4;
- *green = t | (t << 8);
- t = (col << 1) & 0xe;
- t |= t << 4;
- *blue = t | (t << 8);
- }
- *transp = 0;
- return 0;
-}
-
-
-static int stste_setcolreg(unsigned regno, unsigned red,
- unsigned green, unsigned blue,
- unsigned transp, struct fb_info *info)
+static int stste_setcolreg(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ unsigned int transp, struct fb_info *info)
{
if (regno > 15)
return 1;
return 0;
}
-
-static int stste_detect( void )
-
-{ struct atafb_par par;
+static int stste_detect(void)
+{
+ struct atafb_par par;
/* Determine the connected monitor: The DMA sound must be
* disabled before reading the MFP GPIP, because the Sound
*/
if (ATARIHW_PRESENT(PCM_8BIT)) {
tt_dmasnd.ctrl = DMASND_CTRL_OFF;
- udelay(20); /* wait a while for things to settle down */
+ udelay(20); /* wait a while for things to settle down */
}
mono_moni = (mfp.par_dt_reg & 0x80) == 0;
static void stste_set_screen_base(void *s_base)
{
unsigned long addr;
- addr= virt_to_phys(s_base);
+ addr = virt_to_phys(s_base);
/* Setup Screen Memory */
- shifter.bas_hi=(unsigned char) ((addr & 0xff0000) >> 16);
- shifter.bas_md=(unsigned char) ((addr & 0x00ff00) >> 8);
+ shifter.bas_hi = (unsigned char)((addr & 0xff0000) >> 16);
+ shifter.bas_md = (unsigned char)((addr & 0x00ff00) >> 8);
if (ATARIHW_PRESENT(EXTD_SHIFTER))
- shifter.bas_lo=(unsigned char) (addr & 0x0000ff);
+ shifter.bas_lo = (unsigned char)(addr & 0x0000ff);
}
#endif /* ATAFB_STE */
/* SWITCH_ACIA may be used for Falcon (ScreenBlaster III internal!) */
static void st_ovsc_switch(void)
{
- unsigned long flags;
- register unsigned char old, new;
+ unsigned long flags;
+ register unsigned char old, new;
- if (!(atari_switches & ATARI_SWITCH_OVSC_MASK))
- return;
- local_irq_save(flags);
-
- mfp.tim_ct_b = 0x10;
- mfp.active_edge |= 8;
- mfp.tim_ct_b = 0;
- mfp.tim_dt_b = 0xf0;
- mfp.tim_ct_b = 8;
- while (mfp.tim_dt_b > 1) /* TOS does it this way, don't ask why */
- ;
- new = mfp.tim_dt_b;
- do {
- udelay(LINE_DELAY);
- old = new;
+ if (!(atari_switches & ATARI_SWITCH_OVSC_MASK))
+ return;
+ local_irq_save(flags);
+
+ mfp.tim_ct_b = 0x10;
+ mfp.active_edge |= 8;
+ mfp.tim_ct_b = 0;
+ mfp.tim_dt_b = 0xf0;
+ mfp.tim_ct_b = 8;
+ while (mfp.tim_dt_b > 1) /* TOS does it this way, don't ask why */
+ ;
new = mfp.tim_dt_b;
- } while (old != new);
- mfp.tim_ct_b = 0x10;
- udelay(SYNC_DELAY);
-
- if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
- acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID | ACIA_RIE;
- if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
- acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
- if (atari_switches & (ATARI_SWITCH_OVSC_SND6|ATARI_SWITCH_OVSC_SND7)) {
- sound_ym.rd_data_reg_sel = 14;
- sound_ym.wd_data = sound_ym.rd_data_reg_sel |
- ((atari_switches&ATARI_SWITCH_OVSC_SND6) ? 0x40:0) |
- ((atari_switches&ATARI_SWITCH_OVSC_SND7) ? 0x80:0);
- }
- local_irq_restore(flags);
+ do {
+ udelay(LINE_DELAY);
+ old = new;
+ new = mfp.tim_dt_b;
+ } while (old != new);
+ mfp.tim_ct_b = 0x10;
+ udelay(SYNC_DELAY);
+
+ if (atari_switches & ATARI_SWITCH_OVSC_IKBD)
+ acia.key_ctrl = ACIA_DIV64 | ACIA_D8N1S | ACIA_RHTID | ACIA_RIE;
+ if (atari_switches & ATARI_SWITCH_OVSC_MIDI)
+ acia.mid_ctrl = ACIA_DIV16 | ACIA_D8N1S | ACIA_RHTID;
+ if (atari_switches & (ATARI_SWITCH_OVSC_SND6|ATARI_SWITCH_OVSC_SND7)) {
+ sound_ym.rd_data_reg_sel = 14;
+ sound_ym.wd_data = sound_ym.rd_data_reg_sel |
+ ((atari_switches & ATARI_SWITCH_OVSC_SND6) ? 0x40:0) |
+ ((atari_switches & ATARI_SWITCH_OVSC_SND7) ? 0x80:0);
+ }
+ local_irq_restore(flags);
}
/* ------------------- External Video ---------------------- */
#ifdef ATAFB_EXT
-static int ext_encode_fix( struct fb_fix_screeninfo *fix,
- struct atafb_par *par )
-
+static int ext_encode_fix(struct fb_fix_screeninfo *fix, struct atafb_par *par)
{
- strcpy(fix->id,"Unknown Extern");
+ strcpy(fix->id, "Unknown Extern");
fix->smem_start = (unsigned long)external_addr;
fix->smem_len = PAGE_ALIGN(external_len);
if (external_depth == 1) {
fix->visual =
(external_pmode == FB_TYPE_INTERLEAVED_PLANES ||
external_pmode == FB_TYPE_PACKED_PIXELS) ?
- FB_VISUAL_MONO10 :
- FB_VISUAL_MONO01;
- }
- else {
+ FB_VISUAL_MONO10 : FB_VISUAL_MONO01;
+ } else {
/* Use STATIC if we don't know how to access color registers */
int visual = external_vgaiobase ?
FB_VISUAL_PSEUDOCOLOR :
FB_VISUAL_STATIC_PSEUDOCOLOR;
switch (external_pmode) {
- case -1: /* truecolor */
- fix->type=FB_TYPE_PACKED_PIXELS;
- fix->visual=FB_VISUAL_TRUECOLOR;
+ case -1: /* truecolor */
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->visual = FB_VISUAL_TRUECOLOR;
break;
- case FB_TYPE_PACKED_PIXELS:
- fix->type=FB_TYPE_PACKED_PIXELS;
- fix->visual=visual;
+ case FB_TYPE_PACKED_PIXELS:
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->visual = visual;
break;
- case FB_TYPE_PLANES:
- fix->type=FB_TYPE_PLANES;
- fix->visual=visual;
+ case FB_TYPE_PLANES:
+ fix->type = FB_TYPE_PLANES;
+ fix->visual = visual;
break;
- case FB_TYPE_INTERLEAVED_PLANES:
- fix->type=FB_TYPE_INTERLEAVED_PLANES;
- fix->type_aux=2;
- fix->visual=visual;
+ case FB_TYPE_INTERLEAVED_PLANES:
+ fix->type = FB_TYPE_INTERLEAVED_PLANES;
+ fix->type_aux = 2;
+ fix->visual = visual;
break;
}
}
return 0;
}
-
-static int ext_decode_var( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int ext_decode_var(struct fb_var_screeninfo *var, struct atafb_par *par)
{
struct fb_var_screeninfo *myvar = &atafb_predefined[0];
-
+
if (var->bits_per_pixel > myvar->bits_per_pixel ||
- var->xres > myvar->xres ||
- var->xres_virtual > myvar->xres_virtual ||
- var->yres > myvar->yres ||
- var->xoffset > 0 ||
- var->yoffset > 0)
+ var->xres > myvar->xres ||
+ var->xres_virtual > myvar->xres_virtual ||
+ var->yres > myvar->yres ||
+ var->xoffset > 0 ||
+ var->yoffset > 0)
return -EINVAL;
return 0;
}
-
-static int ext_encode_var( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int ext_encode_var(struct fb_var_screeninfo *var, struct atafb_par *par)
{
memset(var, 0, sizeof(struct fb_var_screeninfo));
- var->red.offset=0;
- var->red.length=(external_pmode == -1) ? external_depth/3 :
+ var->red.offset = 0;
+ var->red.length = (external_pmode == -1) ? external_depth / 3 :
(external_vgaiobase ? external_bitspercol : 0);
- var->red.msb_right=0;
- var->grayscale=0;
+ var->red.msb_right = 0;
+ var->grayscale = 0;
- var->pixclock=31041;
- var->left_margin=120; /* these are surely incorrect */
- var->right_margin=100;
- var->upper_margin=8;
- var->lower_margin=16;
- var->hsync_len=140;
- var->vsync_len=30;
+ var->pixclock = 31041;
+ var->left_margin = 120; /* these are surely incorrect */
+ var->right_margin = 100;
+ var->upper_margin = 8;
+ var->lower_margin = 16;
+ var->hsync_len = 140;
+ var->vsync_len = 30;
- var->height=-1;
- var->width=-1;
+ var->height = -1;
+ var->width = -1;
- var->sync=0;
+ var->sync = 0;
var->xres = external_xres;
var->yres = external_yres;
var->xres_virtual = external_xres_virtual;
var->bits_per_pixel = external_depth;
-
- var->blue=var->green=var->red;
- var->transp.offset=0;
- var->transp.length=0;
- var->transp.msb_right=0;
- var->yres_virtual=var->yres;
- var->xoffset=0;
- var->yoffset=0;
- var->nonstd=0;
- var->activate=0;
- var->vmode=FB_VMODE_NONINTERLACED;
+
+ var->blue = var->green = var->red;
+ var->transp.offset = 0;
+ var->transp.length = 0;
+ var->transp.msb_right = 0;
+ var->yres_virtual = var->yres;
+ var->xoffset = 0;
+ var->yoffset = 0;
+ var->nonstd = 0;
+ var->activate = 0;
+ var->vmode = FB_VMODE_NONINTERLACED;
return 0;
}
-
-static void ext_get_par( struct atafb_par *par )
+static void ext_get_par(struct atafb_par *par)
{
par->screen_base = external_addr;
}
-static void ext_set_par( struct atafb_par *par )
+static void ext_set_par(struct atafb_par *par)
{
}
#define OUTB(port,val) \
- *((unsigned volatile char *) ((port)+external_vgaiobase))=(val)
+ *((unsigned volatile char *) ((port)+external_vgaiobase)) = (val)
#define INB(port) \
(*((unsigned volatile char *) ((port)+external_vgaiobase)))
-#define DACDelay \
+#define DACDelay \
do { \
- unsigned char tmp=INB(0x3da); \
- tmp=INB(0x3da); \
+ unsigned char tmp = INB(0x3da); \
+ tmp = INB(0x3da); \
} while (0)
-static int ext_getcolreg( unsigned regno, unsigned *red,
- unsigned *green, unsigned *blue,
- unsigned *transp, struct fb_info *info )
+static int ext_setcolreg(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ unsigned int transp, struct fb_info *info)
{
- if (! external_vgaiobase)
- return 1;
-
- *red = ext_color[regno].red;
- *green = ext_color[regno].green;
- *blue = ext_color[regno].blue;
- *transp=0;
- return 0;
-}
-
-static int ext_setcolreg( unsigned regno, unsigned red,
- unsigned green, unsigned blue,
- unsigned transp, struct fb_info *info )
-
-{ unsigned char colmask = (1 << external_bitspercol) - 1;
+ unsigned char colmask = (1 << external_bitspercol) - 1;
- if (! external_vgaiobase)
+ if (!external_vgaiobase)
return 1;
- ext_color[regno].red = red;
- ext_color[regno].green = green;
- ext_color[regno].blue = blue;
-
switch (external_card_type) {
- case IS_VGA:
- OUTB(0x3c8, regno);
- DACDelay;
- OUTB(0x3c9, red & colmask);
- DACDelay;
- OUTB(0x3c9, green & colmask);
- DACDelay;
- OUTB(0x3c9, blue & colmask);
- DACDelay;
- return 0;
-
- case IS_MV300:
- OUTB((MV300_reg[regno] << 2)+1, red);
- OUTB((MV300_reg[regno] << 2)+1, green);
- OUTB((MV300_reg[regno] << 2)+1, blue);
- return 0;
-
- default:
- return 1;
- }
-}
-
+ case IS_VGA:
+ OUTB(0x3c8, regno);
+ DACDelay;
+ OUTB(0x3c9, red & colmask);
+ DACDelay;
+ OUTB(0x3c9, green & colmask);
+ DACDelay;
+ OUTB(0x3c9, blue & colmask);
+ DACDelay;
+ return 0;
-static int ext_detect( void )
+ case IS_MV300:
+ OUTB((MV300_reg[regno] << 2) + 1, red);
+ OUTB((MV300_reg[regno] << 2) + 1, green);
+ OUTB((MV300_reg[regno] << 2) + 1, blue);
+ return 0;
+ default:
+ return 1;
+ }
+}
+
+static int ext_detect(void)
{
struct fb_var_screeninfo *myvar = &atafb_predefined[0];
struct atafb_par dummy_par;
static void set_screen_base(void *s_base)
{
unsigned long addr;
- addr= virt_to_phys(s_base);
+
+ addr = virt_to_phys(s_base);
/* Setup Screen Memory */
- shifter.bas_hi=(unsigned char) ((addr & 0xff0000) >> 16);
- shifter.bas_md=(unsigned char) ((addr & 0x00ff00) >> 8);
- shifter.bas_lo=(unsigned char) (addr & 0x0000ff);
+ shifter.bas_hi = (unsigned char)((addr & 0xff0000) >> 16);
+ shifter.bas_md = (unsigned char)((addr & 0x00ff00) >> 8);
+ shifter.bas_lo = (unsigned char)(addr & 0x0000ff);
}
-
-static int pan_display( struct fb_var_screeninfo *var,
- struct atafb_par *par )
+static int pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
{
+ struct atafb_par *par = (struct atafb_par *)info->par;
+
if (!fbhw->set_screen_base ||
- (!ATARIHW_PRESENT(EXTD_SHIFTER) && var->xoffset))
+ (!ATARIHW_PRESENT(EXTD_SHIFTER) && var->xoffset))
return -EINVAL;
var->xoffset = up(var->xoffset, 16);
par->screen_base = screen_base +
- (var->yoffset * fb_display[fb_info.currcon].var.xres_virtual + var->xoffset)
- * fb_display[fb_info.currcon].var.bits_per_pixel / 8;
- fbhw->set_screen_base (par->screen_base);
+ (var->yoffset * info->var.xres_virtual + var->xoffset)
+ * info->var.bits_per_pixel / 8;
+ fbhw->set_screen_base(par->screen_base);
return 0;
}
-
/* ------------ Interfaces to hardware functions ------------ */
-
#ifdef ATAFB_TT
static struct fb_hwswitch tt_switch = {
- tt_detect, tt_encode_fix, tt_decode_var, tt_encode_var,
- tt_get_par, tt_set_par, tt_getcolreg,
- set_screen_base, NULL, pan_display
+ .detect = tt_detect,
+ .encode_fix = tt_encode_fix,
+ .decode_var = tt_decode_var,
+ .encode_var = tt_encode_var,
+ .get_par = tt_get_par,
+ .set_par = tt_set_par,
+ .set_screen_base = set_screen_base,
+ .pan_display = pan_display,
};
#endif
#ifdef ATAFB_FALCON
static struct fb_hwswitch falcon_switch = {
- falcon_detect, falcon_encode_fix, falcon_decode_var, falcon_encode_var,
- falcon_get_par, falcon_set_par, falcon_getcolreg,
- set_screen_base, falcon_blank, falcon_pan_display
+ .detect = falcon_detect,
+ .encode_fix = falcon_encode_fix,
+ .decode_var = falcon_decode_var,
+ .encode_var = falcon_encode_var,
+ .get_par = falcon_get_par,
+ .set_par = falcon_set_par,
+ .set_screen_base = set_screen_base,
+ .blank = falcon_blank,
+ .pan_display = falcon_pan_display,
};
#endif
#ifdef ATAFB_STE
static struct fb_hwswitch st_switch = {
- stste_detect, stste_encode_fix, stste_decode_var, stste_encode_var,
- stste_get_par, stste_set_par, stste_getcolreg,
- stste_set_screen_base, NULL, pan_display
+ .detect = stste_detect,
+ .encode_fix = stste_encode_fix,
+ .decode_var = stste_decode_var,
+ .encode_var = stste_encode_var,
+ .get_par = stste_get_par,
+ .set_par = stste_set_par,
+ .set_screen_base = stste_set_screen_base,
+ .pan_display = pan_display
};
#endif
#ifdef ATAFB_EXT
static struct fb_hwswitch ext_switch = {
- ext_detect, ext_encode_fix, ext_decode_var, ext_encode_var,
- ext_get_par, ext_set_par, ext_getcolreg, NULL, NULL, NULL
+ .detect = ext_detect,
+ .encode_fix = ext_encode_fix,
+ .decode_var = ext_decode_var,
+ .encode_var = ext_encode_var,
+ .get_par = ext_get_par,
+ .set_par = ext_set_par,
};
#endif
-
-
-static void atafb_get_par( struct atafb_par *par )
+static void ata_get_par(struct atafb_par *par)
{
- if (current_par_valid) {
- *par=current_par;
- }
+ if (current_par_valid)
+ *par = current_par;
else
fbhw->get_par(par);
}
-
-static void atafb_set_par( struct atafb_par *par )
+static void ata_set_par(struct atafb_par *par)
{
fbhw->set_par(par);
- current_par=*par;
- current_par_valid=1;
+ current_par = *par;
+ current_par_valid = 1;
}
-
/* =========================================================== */
/* ============== Hardware Independent Functions ============= */
/* =========================================================== */
-
/* used for hardware scrolling */
-static int
-fb_update_var(int con, struct fb_info *info)
-{
- int off=fb_display[con].var.yoffset*fb_display[con].var.xres_virtual*
- fb_display[con].var.bits_per_pixel>>3;
-
- current_par.screen_base=screen_base + off;
-
- if (fbhw->set_screen_base)
- fbhw->set_screen_base(current_par.screen_base);
- return 0;
-}
-
-static int
-do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
+static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
{
- int err,activate;
+ int err, activate;
struct atafb_par par;
- if ((err=fbhw->decode_var(var, &par)))
+
+ err = fbhw->decode_var(var, &par);
+ if (err)
return err;
- activate=var->activate;
+ activate = var->activate;
if (((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) && isactive)
- atafb_set_par(&par);
+ ata_set_par(&par);
fbhw->encode_var(var, &par);
- var->activate=activate;
+ var->activate = activate;
return 0;
}
-static int
-atafb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
+static int atafb_get_fix(struct fb_fix_screeninfo *fix, struct fb_info *info)
{
struct atafb_par par;
- if (con == -1)
- atafb_get_par(&par);
- else {
- int err;
- if ((err=fbhw->decode_var(&fb_display[con].var,&par)))
- return err;
- }
+ int err;
+ // Get fix directly (case con == -1 before)??
+ err = fbhw->decode_var(&info->var, &par);
+ if (err)
+ return err;
memset(fix, 0, sizeof(struct fb_fix_screeninfo));
return fbhw->encode_fix(fix, &par);
}
-
-static int
-atafb_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+
+static int atafb_get_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct atafb_par par;
- if (con == -1) {
- atafb_get_par(&par);
- fbhw->encode_var(var, &par);
- }
- else
- *var=fb_display[con].var;
+
+ ata_get_par(&par);
+ fbhw->encode_var(var, &par);
+
return 0;
}
-static void
-atafb_set_disp(int con, struct fb_info *info)
+// No longer called by fbcon!
+// Still called by set_var internally
+
+static void atafb_set_disp(struct fb_info *info)
{
- struct fb_fix_screeninfo fix;
- struct fb_var_screeninfo var;
- struct display *display;
+ atafb_get_var(&info->var, info);
+ atafb_get_fix(&info->fix, info);
- if (con >= 0)
- display = &fb_display[con];
- else
- display = &disp; /* used during initialization */
-
- atafb_get_fix(&fix, con, info);
- atafb_get_var(&var, con, info);
- if (con == -1)
- con=0;
- info->screen_base = (void *)fix.smem_start;
- display->visual = fix.visual;
- display->type = fix.type;
- display->type_aux = fix.type_aux;
- display->ypanstep = fix.ypanstep;
- display->ywrapstep = fix.ywrapstep;
- display->line_length = fix.line_length;
- if (fix.visual != FB_VISUAL_PSEUDOCOLOR &&
- fix.visual != FB_VISUAL_DIRECTCOLOR)
- display->can_soft_blank = 0;
- else
- display->can_soft_blank = 1;
- display->inverse =
- (fix.visual == FB_VISUAL_MONO01 ? !inverse : inverse);
- switch (fix.type) {
- case FB_TYPE_INTERLEAVED_PLANES:
- switch (var.bits_per_pixel) {
-#ifdef FBCON_HAS_IPLAN2P2
- case 2:
- display->dispsw = &fbcon_iplan2p2;
+ info->screen_base = (void *)info->fix.smem_start;
+
+ switch (info->fix.type) {
+ case FB_TYPE_INTERLEAVED_PLANES:
+ switch (info->var.bits_per_pixel) {
+ case 2:
+ // display->dispsw = &fbcon_iplan2p2;
break;
-#endif
-#ifdef FBCON_HAS_IPLAN2P4
- case 4:
- display->dispsw = &fbcon_iplan2p4;
+ case 4:
+ // display->dispsw = &fbcon_iplan2p4;
break;
-#endif
-#ifdef FBCON_HAS_IPLAN2P8
- case 8:
- display->dispsw = &fbcon_iplan2p8;
+ case 8:
+ // display->dispsw = &fbcon_iplan2p8;
break;
-#endif
}
break;
- case FB_TYPE_PACKED_PIXELS:
- switch (var.bits_per_pixel) {
+ case FB_TYPE_PACKED_PIXELS:
+ switch (info->var.bits_per_pixel) {
#ifdef FBCON_HAS_MFB
- case 1:
- display->dispsw = &fbcon_mfb;
+ case 1:
+ // display->dispsw = &fbcon_mfb;
break;
#endif
#ifdef FBCON_HAS_CFB8
- case 8:
- display->dispsw = &fbcon_cfb8;
+ case 8:
+ // display->dispsw = &fbcon_cfb8;
break;
#endif
#ifdef FBCON_HAS_CFB16
- case 16:
- display->dispsw = &fbcon_cfb16;
- display->dispsw_data = fbcon_cfb16_cmap;
+ case 16:
+ // display->dispsw = &fbcon_cfb16;
+ // display->dispsw_data = fbcon_cfb16_cmap;
break;
#endif
}
}
}
+static int atafb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;
+
+ return info->fbops->fb_setcolreg(regno, red, green, blue, transp, info);
+}
+
static int
-atafb_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+atafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
{
- int err,oldxres,oldyres,oldbpp,oldxres_virtual,
- oldyres_virtual,oldyoffset;
- if ((err=do_fb_set_var(var, con==info->currcon)))
- return err;
- if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
- oldxres=fb_display[con].var.xres;
- oldyres=fb_display[con].var.yres;
- oldxres_virtual=fb_display[con].var.xres_virtual;
- oldyres_virtual=fb_display[con].var.yres_virtual;
- oldbpp=fb_display[con].var.bits_per_pixel;
- oldyoffset=fb_display[con].var.yoffset;
- fb_display[con].var=*var;
- if (oldxres != var->xres || oldyres != var->yres
- || oldxres_virtual != var->xres_virtual
- || oldyres_virtual != var->yres_virtual
- || oldbpp != var->bits_per_pixel
- || oldyoffset != var->yoffset) {
- atafb_set_disp(con, info);
- (*fb_info.changevar)(con);
- fb_alloc_cmap(&fb_display[con].cmap, 0, 0);
- do_install_cmap(con, info);
- }
+ int xoffset = var->xoffset;
+ int yoffset = var->yoffset;
+ int err;
+
+ if (var->vmode & FB_VMODE_YWRAP) {
+ if (yoffset < 0 || yoffset >= info->var.yres_virtual || xoffset)
+ return -EINVAL;
+ } else {
+ if (xoffset + info->var.xres > info->var.xres_virtual ||
+ yoffset + info->var.yres > info->var.yres_virtual)
+ return -EINVAL;
}
- var->activate=0;
+
+ if (fbhw->pan_display) {
+ err = fbhw->pan_display(var, info);
+ if (err)
+ return err;
+ } else
+ return -EINVAL;
+
+ info->var.xoffset = xoffset;
+ info->var.yoffset = yoffset;
+
+ if (var->vmode & FB_VMODE_YWRAP)
+ info->var.vmode |= FB_VMODE_YWRAP;
+ else
+ info->var.vmode &= ~FB_VMODE_YWRAP;
+
return 0;
}
+/*
+ * generic drawing routines; imageblit needs updating for image depth > 1
+ */
+
+#if BITS_PER_LONG == 32
+#define BYTES_PER_LONG 4
+#define SHIFT_PER_LONG 5
+#elif BITS_PER_LONG == 64
+#define BYTES_PER_LONG 8
+#define SHIFT_PER_LONG 6
+#else
+#define Please update me
+#endif
-static int
-atafb_get_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
+static void atafb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
- if (con == info->currcon) /* current console ? */
- return fb_get_cmap(cmap, kspc, fbhw->getcolreg, info);
+ struct atafb_par *par = (struct atafb_par *)info->par;
+ int x2, y2;
+ u32 width, height;
+
+ if (!rect->width || !rect->height)
+ return;
+
+ /*
+ * We could use hardware clipping but on many cards you get around
+ * hardware clipping by writing to framebuffer directly.
+ * */
+ x2 = rect->dx + rect->width;
+ y2 = rect->dy + rect->height;
+ x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;
+ y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;
+ width = x2 - rect->dx;
+ height = y2 - rect->dy;
+
+ if (info->var.bits_per_pixel == 1)
+ atafb_mfb_fillrect(info, par->next_line, rect->color,
+ rect->dy, rect->dx, height, width);
+ else if (info->var.bits_per_pixel == 2)
+ atafb_iplan2p2_fillrect(info, par->next_line, rect->color,
+ rect->dy, rect->dx, height, width);
+ else if (info->var.bits_per_pixel == 4)
+ atafb_iplan2p4_fillrect(info, par->next_line, rect->color,
+ rect->dy, rect->dx, height, width);
else
- if (fb_display[con].cmap.len) /* non default colormap ? */
- fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
- else
- fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
- cmap, kspc ? 0 : 2);
- return 0;
+ atafb_iplan2p8_fillrect(info, par->next_line, rect->color,
+ rect->dy, rect->dx, height, width);
+
+ return;
}
-static int
-atafb_pan_display(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+static void atafb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
{
- int xoffset = var->xoffset;
- int yoffset = var->yoffset;
- int err;
+ struct atafb_par *par = (struct atafb_par *)info->par;
+ int x2, y2;
+ u32 dx, dy, sx, sy, width, height;
+ int rev_copy = 0;
+
+ /* clip the destination */
+ x2 = area->dx + area->width;
+ y2 = area->dy + area->height;
+ dx = area->dx > 0 ? area->dx : 0;
+ dy = area->dy > 0 ? area->dy : 0;
+ x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;
+ y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;
+ width = x2 - dx;
+ height = y2 - dy;
+
+ /* update sx,sy */
+ sx = area->sx + (dx - area->dx);
+ sy = area->sy + (dy - area->dy);
+
+ /* the source must be completely inside the virtual screen */
+ if (sx < 0 || sy < 0 || (sx + width) > info->var.xres_virtual ||
+ (sy + height) > info->var.yres_virtual)
+ return;
- if ( xoffset < 0 || xoffset + fb_display[con].var.xres > fb_display[con].var.xres_virtual
- || yoffset < 0 || yoffset + fb_display[con].var.yres > fb_display[con].var.yres_virtual)
- return -EINVAL;
+ if (dy > sy || (dy == sy && dx > sx)) {
+ dy += height;
+ sy += height;
+ rev_copy = 1;
+ }
- if (con == info->currcon) {
- if (fbhw->pan_display) {
- if ((err = fbhw->pan_display(var, ¤t_par)))
- return err;
+ if (info->var.bits_per_pixel == 1)
+ atafb_mfb_copyarea(info, par->next_line, sy, sx, dy, dx, height, width);
+ else if (info->var.bits_per_pixel == 2)
+ atafb_iplan2p2_copyarea(info, par->next_line, sy, sx, dy, dx, height, width);
+ else if (info->var.bits_per_pixel == 4)
+ atafb_iplan2p4_copyarea(info, par->next_line, sy, sx, dy, dx, height, width);
+ else
+ atafb_iplan2p8_copyarea(info, par->next_line, sy, sx, dy, dx, height, width);
+
+ return;
+}
+
+static void atafb_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+ struct atafb_par *par = (struct atafb_par *)info->par;
+ int x2, y2;
+ unsigned long *dst;
+ int dst_idx;
+ const char *src;
+ u32 dx, dy, width, height, pitch;
+
+ /*
+ * We could use hardware clipping but on many cards you get around
+ * hardware clipping by writing to framebuffer directly like we are
+ * doing here.
+ */
+ x2 = image->dx + image->width;
+ y2 = image->dy + image->height;
+ dx = image->dx;
+ dy = image->dy;
+ x2 = x2 < info->var.xres_virtual ? x2 : info->var.xres_virtual;
+ y2 = y2 < info->var.yres_virtual ? y2 : info->var.yres_virtual;
+ width = x2 - dx;
+ height = y2 - dy;
+
+ if (image->depth == 1) {
+ // used for font data
+ dst = (unsigned long *)
+ ((unsigned long)info->screen_base & ~(BYTES_PER_LONG - 1));
+ dst_idx = ((unsigned long)info->screen_base & (BYTES_PER_LONG - 1)) * 8;
+ dst_idx += dy * par->next_line * 8 + dx;
+ src = image->data;
+ pitch = (image->width + 7) / 8;
+ while (height--) {
+
+ if (info->var.bits_per_pixel == 1)
+ atafb_mfb_linefill(info, par->next_line,
+ dy, dx, width, src,
+ image->bg_color, image->fg_color);
+ else if (info->var.bits_per_pixel == 2)
+ atafb_iplan2p2_linefill(info, par->next_line,
+ dy, dx, width, src,
+ image->bg_color, image->fg_color);
+ else if (info->var.bits_per_pixel == 4)
+ atafb_iplan2p4_linefill(info, par->next_line,
+ dy, dx, width, src,
+ image->bg_color, image->fg_color);
+ else
+ atafb_iplan2p8_linefill(info, par->next_line,
+ dy, dx, width, src,
+ image->bg_color, image->fg_color);
+ dy++;
+ src += pitch;
}
- else
- return -EINVAL;
+ } else {
+ // only used for logo; broken
+ c2p(info->screen_base, image->data, dx, dy, width, height,
+ par->next_line, par->next_plane, image->width,
+ info->var.bits_per_pixel);
}
- fb_display[con].var.xoffset = var->xoffset;
- fb_display[con].var.yoffset = var->yoffset;
- return 0;
}
static int
if (copy_from_user((void *)¤t_par, (void *)arg,
sizeof(struct atafb_par)))
return -EFAULT;
- atafb_set_par(¤t_par);
+ ata_set_par(¤t_par);
return 0;
#endif
}
* 3 = suspend hsync
* 4 = off
*/
-static int
-atafb_blank(int blank, struct fb_info *info)
+static int atafb_blank(int blank, struct fb_info *info)
{
unsigned short black[16];
struct fb_cmap cmap;
if (fbhw->blank && !fbhw->blank(blank))
return 1;
if (blank) {
- memset(black, 0, 16*sizeof(unsigned short));
- cmap.red=black;
- cmap.green=black;
- cmap.blue=black;
- cmap.transp=NULL;
- cmap.start=0;
- cmap.len=16;
- fb_set_cmap(&cmap, 1, info);
+ memset(black, 0, 16 * sizeof(unsigned short));
+ cmap.red = black;
+ cmap.green = black;
+ cmap.blue = black;
+ cmap.transp = NULL;
+ cmap.start = 0;
+ cmap.len = 16;
+ fb_set_cmap(&cmap, info);
}
+#if 0
else
- do_install_cmap(info->currcon, info);
+ do_install_cmap(info);
+#endif
+ return 0;
+}
+
+ /*
+ * New fbcon interface ...
+ */
+
+ /* check var by decoding var into hw par, rounding if necessary,
+ * then encoding hw par back into new, validated var */
+static int atafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ int err;
+ struct atafb_par par;
+
+ /* Validate wanted screen parameters */
+ // if ((err = ata_decode_var(var, &par)))
+ err = fbhw->decode_var(var, &par);
+ if (err)
+ return err;
+
+ /* Encode (possibly rounded) screen parameters */
+ fbhw->encode_var(var, &par);
return 0;
}
+ /* actually set hw par by decoding var, then setting hardware from
+ * hw par just decoded */
+static int atafb_set_par(struct fb_info *info)
+{
+ struct atafb_par *par = (struct atafb_par *)info->par;
+
+ /* Decode wanted screen parameters */
+ fbhw->decode_var(&info->var, par);
+ fbhw->encode_fix(&info->fix, par);
+
+ /* Set new videomode */
+ ata_set_par(par);
+
+ return 0;
+}
+
+
static struct fb_ops atafb_ops = {
.owner = THIS_MODULE,
- .fb_get_fix = atafb_get_fix,
- .fb_get_var = atafb_get_var,
- .fb_set_var = atafb_set_var,
- .fb_get_cmap = atafb_get_cmap,
- .fb_set_cmap = gen_set_cmap,
- .fb_pan_display =atafb_pan_display,
+ .fb_check_var = atafb_check_var,
+ .fb_set_par = atafb_set_par,
+ .fb_setcolreg = atafb_setcolreg,
.fb_blank = atafb_blank,
+ .fb_pan_display = atafb_pan_display,
+ .fb_fillrect = atafb_fillrect,
+ .fb_copyarea = atafb_copyarea,
+ .fb_imageblit = atafb_imageblit,
.fb_ioctl = atafb_ioctl,
};
-static void
-check_default_par( int detected_mode )
+static void check_default_par(int detected_mode)
{
char default_name[10];
int i;
/* First try the user supplied mode */
if (default_par) {
- var=atafb_predefined[default_par-1];
+ var = atafb_predefined[default_par - 1];
var.activate = FB_ACTIVATE_TEST;
- if (do_fb_set_var(&var,1))
- default_par=0; /* failed */
+ if (do_fb_set_var(&var, 1))
+ default_par = 0; /* failed */
}
/* Next is the autodetected one */
- if (! default_par) {
- var=atafb_predefined[detected_mode-1]; /* autodetect */
+ if (!default_par) {
+ var = atafb_predefined[detected_mode - 1]; /* autodetect */
var.activate = FB_ACTIVATE_TEST;
- if (!do_fb_set_var(&var,1))
- default_par=detected_mode;
+ if (!do_fb_set_var(&var, 1))
+ default_par = detected_mode;
}
/* If that also failed, try some default modes... */
- if (! default_par) {
+ if (!default_par) {
/* try default1, default2... */
- for (i=1 ; i < 10 ; i++) {
- sprintf(default_name,"default%d",i);
- default_par=get_video_mode(default_name);
- if (! default_par)
+ for (i = 1; i < 10; i++) {
+ sprintf(default_name,"default%d", i);
+ default_par = get_video_mode(default_name);
+ if (!default_par)
panic("can't set default video mode");
- var=atafb_predefined[default_par-1];
+ var = atafb_predefined[default_par - 1];
var.activate = FB_ACTIVATE_TEST;
- if (! do_fb_set_var(&var,1))
+ if (!do_fb_set_var(&var,1))
break; /* ok */
}
}
- min_mem=var.xres_virtual * var.yres_virtual * var.bits_per_pixel/8;
+ min_mem = var.xres_virtual * var.yres_virtual * var.bits_per_pixel / 8;
if (default_mem_req < min_mem)
- default_mem_req=min_mem;
-}
-
-static int
-atafb_switch(int con, struct fb_info *info)
-{
- /* Do we have to save the colormap ? */
- if (fb_display[info->currcon].cmap.len)
- fb_get_cmap(&fb_display[info->currcon].cmap, 1, fbhw->getcolreg,
- info);
- do_fb_set_var(&fb_display[con].var,1);
- info->currcon=con;
- /* Install new colormap */
- do_install_cmap(con, info);
- return 0;
+ default_mem_req = min_mem;
}
-int __init atafb_init(void)
-{
- int pad;
- int detected_mode;
- unsigned long mem_req;
-
- if (!MACH_IS_ATARI)
- return -ENXIO;
-
- do {
-#ifdef ATAFB_EXT
- if (external_addr) {
- fbhw = &ext_switch;
- atafb_ops.fb_setcolreg = &ext_setcolreg;
- break;
- }
-#endif
-#ifdef ATAFB_TT
- if (ATARIHW_PRESENT(TT_SHIFTER)) {
- fbhw = &tt_switch;
- atafb_ops.fb_setcolreg = &tt_setcolreg;
- break;
- }
-#endif
-#ifdef ATAFB_FALCON
- if (ATARIHW_PRESENT(VIDEL_SHIFTER)) {
- fbhw = &falcon_switch;
- atafb_ops.fb_setcolreg = &falcon_setcolreg;
- request_irq(IRQ_AUTO_4, falcon_vbl_switcher, IRQ_TYPE_PRIO,
- "framebuffer/modeswitch", falcon_vbl_switcher);
- break;
- }
-#endif
-#ifdef ATAFB_STE
- if (ATARIHW_PRESENT(STND_SHIFTER) ||
- ATARIHW_PRESENT(EXTD_SHIFTER)) {
- fbhw = &st_switch;
- atafb_ops.fb_setcolreg = &stste_setcolreg;
- break;
- }
- fbhw = &st_switch;
- atafb_ops.fb_setcolreg = &stste_setcolreg;
- printk("Cannot determine video hardware; defaulting to ST(e)\n");
-#else /* ATAFB_STE */
- /* no default driver included */
- /* Nobody will ever see this message :-) */
- panic("Cannot initialize video hardware");
-#endif
- } while (0);
-
- /* Multisync monitor capabilities */
- /* Atari-TOS defaults if no boot option present */
- if (fb_info.monspecs.hfmin == 0) {
- fb_info.monspecs.hfmin = 31000;
- fb_info.monspecs.hfmax = 32000;
- fb_info.monspecs.vfmin = 58;
- fb_info.monspecs.vfmax = 62;
- }
-
- detected_mode = fbhw->detect();
- check_default_par(detected_mode);
-#ifdef ATAFB_EXT
- if (!external_addr) {
-#endif /* ATAFB_EXT */
- mem_req = default_mem_req + ovsc_offset + ovsc_addlen;
- mem_req = PAGE_ALIGN(mem_req) + PAGE_SIZE;
- screen_base = atari_stram_alloc(mem_req, "atafb");
- if (!screen_base)
- panic("Cannot allocate screen memory");
- memset(screen_base, 0, mem_req);
- pad = -(unsigned long)screen_base & (PAGE_SIZE-1);
- screen_base+=pad;
- real_screen_base=screen_base+ovsc_offset;
- screen_len = (mem_req - pad - ovsc_offset) & PAGE_MASK;
- st_ovsc_switch();
- if (CPU_IS_040_OR_060) {
- /* On a '040+, the cache mode of video RAM must be set to
- * write-through also for internal video hardware! */
- cache_push(virt_to_phys(screen_base), screen_len);
- kernel_set_cachemode(screen_base, screen_len,
- IOMAP_WRITETHROUGH);
- }
-#ifdef ATAFB_EXT
- }
- else {
- /* Map the video memory (physical address given) to somewhere
- * in the kernel address space.
- */
- external_addr =
- ioremap_writethrough((unsigned long)external_addr,
- external_len);
- if (external_vgaiobase)
- external_vgaiobase =
- (unsigned long)ioremap(external_vgaiobase, 0x10000);
- screen_base =
- real_screen_base = external_addr;
- screen_len = external_len & PAGE_MASK;
- memset (screen_base, 0, external_len);
- }
-#endif /* ATAFB_EXT */
-
- strcpy(fb_info.modename, "Atari Builtin ");
- fb_info.changevar = NULL;
- fb_info.fbops = &atafb_ops;
- fb_info.disp = &disp;
- fb_info.currcon = -1;
- fb_info.switch_con = &atafb_switch;
- fb_info.updatevar = &fb_update_var;
- fb_info.flags = FBINFO_FLAG_DEFAULT;
- do_fb_set_var(&atafb_predefined[default_par-1], 1);
- strcat(fb_info.modename, fb_var_names[default_par-1][0]);
-
- atafb_get_var(&disp.var, -1, &fb_info);
- atafb_set_disp(-1, &fb_info);
- do_install_cmap(0, &fb_info);
-
- if (register_framebuffer(&fb_info) < 0) {
-#ifdef ATAFB_EXT
- if (external_addr) {
- iounmap(external_addr);
- external_addr = NULL;
- }
- if (external_vgaiobase) {
- iounmap((void*)external_vgaiobase);
- external_vgaiobase = 0;
- }
-#endif
- return -EINVAL;
- }
-
- printk("Determined %dx%d, depth %d\n",
- disp.var.xres, disp.var.yres, disp.var.bits_per_pixel);
- if ((disp.var.xres != disp.var.xres_virtual) ||
- (disp.var.yres != disp.var.yres_virtual))
- printk(" virtual %dx%d\n",
- disp.var.xres_virtual, disp.var.yres_virtual);
- printk("fb%d: %s frame buffer device, using %dK of video memory\n",
- fb_info.node, fb_info.modename, screen_len>>10);
-
- /* TODO: This driver cannot be unloaded yet */
- return 0;
-}
-
-
#ifdef ATAFB_EXT
static void __init atafb_setup_ext(char *spec)
{
- int xres, xres_virtual, yres, depth, planes;
+ int xres, xres_virtual, yres, depth, planes;
unsigned long addr, len;
char *p;
*
* Even xres_virtual is available, we neither support panning nor hw-scrolling!
*/
- if (!(p = strsep(&spec, ";")) || !*p)
- return;
+ p = strsep(&spec, ";");
+ if (!p || !*p)
+ return;
xres_virtual = xres = simple_strtoul(p, NULL, 10);
if (xres <= 0)
- return;
+ return;
- if (!(p = strsep(&spec, ";")) || !*p)
- return;
+ p = strsep(&spec, ";");
+ if (!p || !*p)
+ return;
yres = simple_strtoul(p, NULL, 10);
if (yres <= 0)
- return;
+ return;
- if (!(p = strsep(&spec, ";")) || !*p)
- return;
+ p = strsep(&spec, ";");
+ if (!p || !*p)
+ return;
depth = simple_strtoul(p, NULL, 10);
if (depth != 1 && depth != 2 && depth != 4 && depth != 8 &&
- depth != 16 && depth != 24)
- return;
+ depth != 16 && depth != 24)
+ return;
- if (!(p = strsep(&spec, ";")) || !*p)
- return;
+ p = strsep(&spec, ";");
+ if (!p || !*p)
+ return;
if (*p == 'i')
planes = FB_TYPE_INTERLEAVED_PLANES;
else if (*p == 'p')
else if (*p == 'n')
planes = FB_TYPE_PLANES;
else if (*p == 't')
- planes = -1; /* true color */
+ planes = -1; /* true color */
else
return;
-
- if (!(p = strsep(&spec, ";")) || !*p)
+ p = strsep(&spec, ";");
+ if (!p || !*p)
return;
addr = simple_strtoul(p, NULL, 0);
- if (!(p = strsep(&spec, ";")) || !*p)
- len = xres*yres*depth/8;
+ p = strsep(&spec, ";");
+ if (!p || !*p)
+ len = xres * yres * depth / 8;
else
len = simple_strtoul(p, NULL, 0);
- if ((p = strsep(&spec, ";")) && *p) {
- external_vgaiobase=simple_strtoul(p, NULL, 0);
- }
+ p = strsep(&spec, ";");
+ if (p && *p)
+ external_vgaiobase = simple_strtoul(p, NULL, 0);
- if ((p = strsep(&spec, ";")) && *p) {
+ p = strsep(&spec, ";");
+ if (p && *p) {
external_bitspercol = simple_strtoul(p, NULL, 0);
if (external_bitspercol > 8)
external_bitspercol = 8;
external_bitspercol = 1;
}
- if ((p = strsep(&spec, ";")) && *p) {
+ p = strsep(&spec, ";");
+ if (p && *p) {
if (!strcmp(p, "vga"))
external_card_type = IS_VGA;
if (!strcmp(p, "mv300"))
external_card_type = IS_MV300;
}
- if ((p = strsep(&spec, ";")) && *p) {
+ p = strsep(&spec, ";");
+ if (p && *p) {
xres_virtual = simple_strtoul(p, NULL, 10);
if (xres_virtual < xres)
xres_virtual = xres;
- if (xres_virtual*yres*depth/8 > len)
- len=xres_virtual*yres*depth/8;
+ if (xres_virtual * yres * depth / 8 > len)
+ len = xres_virtual * yres * depth / 8;
}
- external_xres = xres;
- external_xres_virtual = xres_virtual;
- external_yres = yres;
+ external_xres = xres;
+ external_xres_virtual = xres_virtual;
+ external_yres = yres;
external_depth = depth;
external_pmode = planes;
- external_addr = (void *)addr;
- external_len = len;
-
- if (external_card_type == IS_MV300)
- switch (external_depth) {
- case 1:
- MV300_reg = MV300_reg_1bit;
- break;
- case 4:
- MV300_reg = MV300_reg_4bit;
- break;
- case 8:
- MV300_reg = MV300_reg_8bit;
- break;
- }
+ external_addr = (void *)addr;
+ external_len = len;
+
+ if (external_card_type == IS_MV300) {
+ switch (external_depth) {
+ case 1:
+ MV300_reg = MV300_reg_1bit;
+ break;
+ case 4:
+ MV300_reg = MV300_reg_4bit;
+ break;
+ case 8:
+ MV300_reg = MV300_reg_8bit;
+ break;
+ }
+ }
}
#endif /* ATAFB_EXT */
-
static void __init atafb_setup_int(char *spec)
{
/* Format to config extended internal video hardware like OverScan:
- "internal:<xres>;<yres>;<xres_max>;<yres_max>;<offset>"
- Explanation:
- <xres>: x-resolution
- <yres>: y-resolution
- The following are only needed if you have an overscan which
- needs a black border:
- <xres_max>: max. length of a line in pixels your OverScan hardware would allow
- <yres_max>: max. number of lines your OverScan hardware would allow
- <offset>: Offset from physical beginning to visible beginning
- of screen in bytes
- */
+ * "internal:<xres>;<yres>;<xres_max>;<yres_max>;<offset>"
+ * Explanation:
+ * <xres>: x-resolution
+ * <yres>: y-resolution
+ * The following are only needed if you have an overscan which
+ * needs a black border:
+ * <xres_max>: max. length of a line in pixels your OverScan hardware would allow
+ * <yres_max>: max. number of lines your OverScan hardware would allow
+ * <offset>: Offset from physical beginning to visible beginning
+ * of screen in bytes
+ */
int xres;
char *p;
xres = simple_strtoul(p, NULL, 10);
if (!(p = strsep(&spec, ";")) || !*p)
return;
- sttt_xres=xres;
- tt_yres=st_yres=simple_strtoul(p, NULL, 10);
- if ((p=strsep(&spec, ";")) && *p) {
- sttt_xres_virtual=simple_strtoul(p, NULL, 10);
- }
- if ((p=strsep(&spec, ";")) && *p) {
- sttt_yres_virtual=simple_strtoul(p, NULL, 0);
- }
- if ((p=strsep(&spec, ";")) && *p) {
- ovsc_offset=simple_strtoul(p, NULL, 0);
- }
+ sttt_xres = xres;
+ tt_yres = st_yres = simple_strtoul(p, NULL, 10);
+ if ((p = strsep(&spec, ";")) && *p)
+ sttt_xres_virtual = simple_strtoul(p, NULL, 10);
+ if ((p = strsep(&spec, ";")) && *p)
+ sttt_yres_virtual = simple_strtoul(p, NULL, 0);
+ if ((p = strsep(&spec, ";")) && *p)
+ ovsc_offset = simple_strtoul(p, NULL, 0);
if (ovsc_offset || (sttt_yres_virtual != st_yres))
- use_hwscroll=0;
+ use_hwscroll = 0;
}
-
#ifdef ATAFB_FALCON
static void __init atafb_setup_mcap(char *spec)
{
}
#endif /* ATAFB_FALCON */
-
static void __init atafb_setup_user(char *spec)
{
/* Format of user defined video mode is: <xres>;<yres>;<depth>
char *p;
int xres, yres, depth, temp;
- if (!(p = strsep(&spec, ";")) || !*p)
+ p = strsep(&spec, ";");
+ if (!p || !*p)
return;
xres = simple_strtoul(p, NULL, 10);
- if (!(p = strsep(&spec, ";")) || !*p)
+ p = strsep(&spec, ";");
+ if (!p || !*p)
return;
yres = simple_strtoul(p, NULL, 10);
- if (!(p = strsep(&spec, "")) || !*p)
+ p = strsep(&spec, "");
+ if (!p || !*p)
return;
depth = simple_strtoul(p, NULL, 10);
- if ((temp=get_video_mode("user0"))) {
- default_par=temp;
- atafb_predefined[default_par-1].xres = xres;
- atafb_predefined[default_par-1].yres = yres;
- atafb_predefined[default_par-1].bits_per_pixel = depth;
+ temp = get_video_mode("user0");
+ if (temp) {
+ default_par = temp;
+ atafb_predefined[default_par - 1].xres = xres;
+ atafb_predefined[default_par - 1].yres = yres;
+ atafb_predefined[default_par - 1].bits_per_pixel = depth;
}
}
-int __init atafb_setup( char *options )
+int __init atafb_setup(char *options)
{
- char *this_opt;
- int temp;
-
- fb_info.fontname[0] = '\0';
+ char *this_opt;
+ int temp;
- if (!options || !*options)
+ if (!options || !*options)
return 0;
-
- while ((this_opt = strsep(&options, ",")) != NULL) {
- if (!*this_opt) continue;
- if ((temp=get_video_mode(this_opt)))
- default_par=temp;
- else if (! strcmp(this_opt, "inverse"))
- inverse=1;
- else if (!strncmp(this_opt, "font:", 5))
- strcpy(fb_info.fontname, this_opt+5);
- else if (! strncmp(this_opt, "hwscroll_",9)) {
- hwscroll=simple_strtoul(this_opt+9, NULL, 10);
- if (hwscroll < 0)
- hwscroll = 0;
- if (hwscroll > 200)
- hwscroll = 200;
- }
+
+ while ((this_opt = strsep(&options, ",")) != NULL) {
+ if (!*this_opt)
+ continue;
+ if ((temp = get_video_mode(this_opt))) {
+ default_par = temp;
+ mode_option = this_opt;
+ } else if (!strcmp(this_opt, "inverse"))
+ inverse = 1;
+ else if (!strncmp(this_opt, "hwscroll_", 9)) {
+ hwscroll = simple_strtoul(this_opt + 9, NULL, 10);
+ if (hwscroll < 0)
+ hwscroll = 0;
+ if (hwscroll > 200)
+ hwscroll = 200;
+ }
#ifdef ATAFB_EXT
- else if (!strcmp(this_opt,"mv300")) {
- external_bitspercol = 8;
- external_card_type = IS_MV300;
+ else if (!strcmp(this_opt, "mv300")) {
+ external_bitspercol = 8;
+ external_card_type = IS_MV300;
+ } else if (!strncmp(this_opt, "external:", 9))
+ atafb_setup_ext(this_opt + 9);
+#endif
+ else if (!strncmp(this_opt, "internal:", 9))
+ atafb_setup_int(this_opt + 9);
+#ifdef ATAFB_FALCON
+ else if (!strncmp(this_opt, "eclock:", 7)) {
+ fext.f = simple_strtoul(this_opt + 7, NULL, 10);
+ /* external pixelclock in kHz --> ps */
+ fext.t = 1000000000 / fext.f;
+ fext.f *= 1000;
+ } else if (!strncmp(this_opt, "monitorcap:", 11))
+ atafb_setup_mcap(this_opt + 11);
+#endif
+ else if (!strcmp(this_opt, "keep"))
+ DontCalcRes = 1;
+ else if (!strncmp(this_opt, "R", 1))
+ atafb_setup_user(this_opt + 1);
}
- else if (!strncmp(this_opt,"external:",9))
- atafb_setup_ext(this_opt+9);
+ return 0;
+}
+
+int __init atafb_init(void)
+{
+ int pad;
+ int detected_mode;
+ unsigned int defmode = 0;
+ unsigned long mem_req;
+
+#ifndef MODULE
+ char *option = NULL;
+
+ if (fb_get_options("atafb", &option))
+ return -ENODEV;
+ atafb_setup(option);
+#endif
+ printk("atafb_init: start\n");
+
+ if (!MACH_IS_ATARI)
+ return -ENXIO;
+
+ do {
+#ifdef ATAFB_EXT
+ if (external_addr) {
+ printk("atafb_init: initializing external hw\n");
+ fbhw = &ext_switch;
+ atafb_ops.fb_setcolreg = &ext_setcolreg;
+ defmode = DEFMODE_EXT;
+ break;
+ }
+#endif
+#ifdef ATAFB_TT
+ if (ATARIHW_PRESENT(TT_SHIFTER)) {
+ printk("atafb_init: initializing TT hw\n");
+ fbhw = &tt_switch;
+ atafb_ops.fb_setcolreg = &tt_setcolreg;
+ defmode = DEFMODE_TT;
+ break;
+ }
#endif
- else if (!strncmp(this_opt,"internal:",9))
- atafb_setup_int(this_opt+9);
#ifdef ATAFB_FALCON
- else if (!strncmp(this_opt, "eclock:", 7)) {
- fext.f = simple_strtoul(this_opt+7, NULL, 10);
- /* external pixelclock in kHz --> ps */
- fext.t = 1000000000/fext.f;
- fext.f *= 1000;
+ if (ATARIHW_PRESENT(VIDEL_SHIFTER)) {
+ printk("atafb_init: initializing Falcon hw\n");
+ fbhw = &falcon_switch;
+ atafb_ops.fb_setcolreg = &falcon_setcolreg;
+ request_irq(IRQ_AUTO_4, falcon_vbl_switcher, IRQ_TYPE_PRIO,
+ "framebuffer/modeswitch", falcon_vbl_switcher);
+ defmode = DEFMODE_F30;
+ break;
+ }
+#endif
+#ifdef ATAFB_STE
+ if (ATARIHW_PRESENT(STND_SHIFTER) ||
+ ATARIHW_PRESENT(EXTD_SHIFTER)) {
+ printk("atafb_init: initializing ST/E hw\n");
+ fbhw = &st_switch;
+ atafb_ops.fb_setcolreg = &stste_setcolreg;
+ defmode = DEFMODE_STE;
+ break;
+ }
+ fbhw = &st_switch;
+ atafb_ops.fb_setcolreg = &stste_setcolreg;
+ printk("Cannot determine video hardware; defaulting to ST(e)\n");
+#else /* ATAFB_STE */
+ /* no default driver included */
+ /* Nobody will ever see this message :-) */
+ panic("Cannot initialize video hardware");
+#endif
+ } while (0);
+
+ /* Multisync monitor capabilities */
+ /* Atari-TOS defaults if no boot option present */
+ if (fb_info.monspecs.hfmin == 0) {
+ fb_info.monspecs.hfmin = 31000;
+ fb_info.monspecs.hfmax = 32000;
+ fb_info.monspecs.vfmin = 58;
+ fb_info.monspecs.vfmax = 62;
}
- else if (!strncmp(this_opt, "monitorcap:", 11))
- atafb_setup_mcap(this_opt+11);
+
+ detected_mode = fbhw->detect();
+ check_default_par(detected_mode);
+#ifdef ATAFB_EXT
+ if (!external_addr) {
+#endif /* ATAFB_EXT */
+ mem_req = default_mem_req + ovsc_offset + ovsc_addlen;
+ mem_req = PAGE_ALIGN(mem_req) + PAGE_SIZE;
+ screen_base = atari_stram_alloc(mem_req, "atafb");
+ if (!screen_base)
+ panic("Cannot allocate screen memory");
+ memset(screen_base, 0, mem_req);
+ pad = -(unsigned long)screen_base & (PAGE_SIZE - 1);
+ screen_base += pad;
+ real_screen_base = screen_base + ovsc_offset;
+ screen_len = (mem_req - pad - ovsc_offset) & PAGE_MASK;
+ st_ovsc_switch();
+ if (CPU_IS_040_OR_060) {
+ /* On a '040+, the cache mode of video RAM must be set to
+ * write-through also for internal video hardware! */
+ cache_push(virt_to_phys(screen_base), screen_len);
+ kernel_set_cachemode(screen_base, screen_len,
+ IOMAP_WRITETHROUGH);
+ }
+ printk("atafb: screen_base %p real_screen_base %p screen_len %d\n",
+ screen_base, real_screen_base, screen_len);
+#ifdef ATAFB_EXT
+ } else {
+ /* Map the video memory (physical address given) to somewhere
+ * in the kernel address space.
+ */
+ external_addr = ioremap_writethrough((unsigned long)external_addr,
+ external_len);
+ if (external_vgaiobase)
+ external_vgaiobase =
+ (unsigned long)ioremap(external_vgaiobase, 0x10000);
+ screen_base =
+ real_screen_base = external_addr;
+ screen_len = external_len & PAGE_MASK;
+ memset (screen_base, 0, external_len);
+ }
+#endif /* ATAFB_EXT */
+
+// strcpy(fb_info.mode->name, "Atari Builtin ");
+ fb_info.fbops = &atafb_ops;
+ // try to set default (detected; requested) var
+ do_fb_set_var(&atafb_predefined[default_par - 1], 1);
+ // reads hw state into current par, which may not be sane yet
+ ata_get_par(¤t_par);
+ fb_info.par = ¤t_par;
+ // tries to read from HW which may not be initialized yet
+ // so set sane var first, then call atafb_set_par
+ atafb_get_var(&fb_info.var, &fb_info);
+ fb_info.flags = FBINFO_FLAG_DEFAULT;
+
+ if (!fb_find_mode(&fb_info.var, &fb_info, mode_option, atafb_modedb,
+ NUM_TOTAL_MODES, &atafb_modedb[defmode],
+ fb_info.var.bits_per_pixel)) {
+ return -EINVAL;
+ }
+
+ atafb_set_disp(&fb_info);
+
+ fb_alloc_cmap(&(fb_info.cmap), 1 << fb_info.var.bits_per_pixel, 0);
+
+
+ printk("Determined %dx%d, depth %d\n",
+ fb_info.var.xres, fb_info.var.yres, fb_info.var.bits_per_pixel);
+ if ((fb_info.var.xres != fb_info.var.xres_virtual) ||
+ (fb_info.var.yres != fb_info.var.yres_virtual))
+ printk(" virtual %dx%d\n", fb_info.var.xres_virtual,
+ fb_info.var.yres_virtual);
+
+ if (register_framebuffer(&fb_info) < 0) {
+#ifdef ATAFB_EXT
+ if (external_addr) {
+ iounmap(external_addr);
+ external_addr = NULL;
+ }
+ if (external_vgaiobase) {
+ iounmap((void*)external_vgaiobase);
+ external_vgaiobase = 0;
+ }
#endif
- else if (!strcmp(this_opt, "keep"))
- DontCalcRes = 1;
- else if (!strncmp(this_opt, "R", 1))
- atafb_setup_user(this_opt+1);
- }
- return 0;
+ return -EINVAL;
+ }
+
+ // FIXME: mode needs setting!
+ //printk("fb%d: %s frame buffer device, using %dK of video memory\n",
+ // fb_info.node, fb_info.mode->name, screen_len>>10);
+ printk("fb%d: frame buffer device, using %dK of video memory\n",
+ fb_info.node, screen_len >> 10);
+
+ /* TODO: This driver cannot be unloaded yet */
+ return 0;
}
+module_init(atafb_init);
+
#ifdef MODULE
MODULE_LICENSE("GPL");
-int init_module(void)
+int cleanup_module(void)
{
- return atafb_init();
+ unregister_framebuffer(&fb_info);
+ return atafb_deinit();
}
#endif /* MODULE */
projects / openwrt / staging / blogic.git / commitdiff