^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * valkyriefb.c -- frame buffer device for the PowerMac 'valkyrie' display
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Created 8 August 1998 by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Martin Costabel <costabel@wanadoo.fr> and Kevin Schoedel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Vmode-switching changes and vmode 15/17 modifications created 29 August
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * 1998 by Barry K. Nathan <barryn@pobox.com>.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Ported to m68k Macintosh by David Huggins-Daines <dhd@debian.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Derived directly from:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * controlfb.c -- frame buffer device for the PowerMac 'control' display
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * Copyright (C) 1998 Dan Jacobowitz <dan@debian.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * pmc-valkyrie.c -- Console support for PowerMac "valkyrie" display adaptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * Copyright (C) 1997 Paul Mackerras.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * and indirectly:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * Frame buffer structure from:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * drivers/video/chipsfb.c -- frame buffer device for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * Chips & Technologies 65550 chip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * Copyright (C) 1998 Paul Mackerras
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * This file is derived from the Powermac "chips" driver:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * Copyright (C) 1997 Fabio Riccardi.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * And from the frame buffer device for Open Firmware-initialized devices:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * Copyright (C) 1997 Geert Uytterhoeven.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * Hardware information from:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * control.c: Console support for PowerMac "control" display adaptor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * Copyright (C) 1996 Paul Mackerras
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * License. See the file COPYING in the main directory of this archive for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #include <linux/vmalloc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #include <linux/fb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #include <linux/selection.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #include <linux/nvram.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #include <linux/adb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #include <linux/cuda.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #ifdef CONFIG_MAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #include <asm/macintosh.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #include <asm/prom.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #include "macmodes.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #include "valkyriefb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static int default_vmode = VMODE_NVRAM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int default_cmode = CMODE_NVRAM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct fb_par_valkyrie {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int vmode, cmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) int xres, yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int vxres, vyres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct valkyrie_regvals *init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct fb_info_valkyrie {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct fb_info info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct fb_par_valkyrie par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct cmap_regs __iomem *cmap_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) unsigned long cmap_regs_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct valkyrie_regs __iomem *valkyrie_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) unsigned long valkyrie_regs_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) __u8 __iomem *frame_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) unsigned long frame_buffer_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int sense;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) unsigned long total_vram;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) u32 pseudo_palette[16];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * Exported functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) int valkyriefb_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) int valkyriefb_setup(char*);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static int valkyriefb_check_var(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static int valkyriefb_set_par(struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static int valkyriefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) u_int transp, struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static int valkyriefb_blank(int blank_mode, struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static int read_valkyrie_sense(struct fb_info_valkyrie *p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static void set_valkyrie_clock(unsigned char *params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static int valkyrie_var_to_par(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) struct fb_par_valkyrie *par, const struct fb_info *fb_info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static int valkyrie_init_info(struct fb_info *info, struct fb_info_valkyrie *p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static void valkyrie_par_to_fix(struct fb_par_valkyrie *par, struct fb_fix_screeninfo *fix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) static void valkyrie_init_fix(struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static const struct fb_ops valkyriefb_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) .fb_check_var = valkyriefb_check_var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .fb_set_par = valkyriefb_set_par,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .fb_setcolreg = valkyriefb_setcolreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .fb_blank = valkyriefb_blank,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .fb_fillrect = cfb_fillrect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .fb_copyarea = cfb_copyarea,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .fb_imageblit = cfb_imageblit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) /* Sets the video mode according to info->var */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static int valkyriefb_set_par(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct fb_info_valkyrie *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) container_of(info, struct fb_info_valkyrie, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) volatile struct valkyrie_regs __iomem *valkyrie_regs = p->valkyrie_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) struct fb_par_valkyrie *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct valkyrie_regvals *init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) if ((err = valkyrie_var_to_par(&info->var, par, info)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) valkyrie_par_to_fix(par, &info->fix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) /* Reset the valkyrie */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) out_8(&valkyrie_regs->status.r, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) udelay(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) /* Initialize display timing registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) init = par->init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) out_8(&valkyrie_regs->mode.r, init->mode | 0x80);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) out_8(&valkyrie_regs->depth.r, par->cmode + 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) set_valkyrie_clock(init->clock_params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) udelay(100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) /* Turn on display */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) out_8(&valkyrie_regs->mode.r, init->mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static inline int valkyrie_par_to_var(struct fb_par_valkyrie *par,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct fb_var_screeninfo *var)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return mac_vmode_to_var(par->vmode, par->cmode, var);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) valkyriefb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) struct fb_par_valkyrie par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if ((err = valkyrie_var_to_par(var, &par, info)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) valkyrie_par_to_var(&par, var);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * Blank the screen if blank_mode != 0, else unblank. If blank_mode == NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) * then the caller blanks by setting the CLUT (Color Look Up Table) to all
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * black. Return 0 if blanking succeeded, != 0 if un-/blanking failed due
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * to e.g. a video mode which doesn't support it. Implements VESA suspend
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * and powerdown modes on hardware that supports disabling hsync/vsync:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) * blank_mode == 2: suspend vsync
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) * blank_mode == 3: suspend hsync
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) * blank_mode == 4: powerdown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static int valkyriefb_blank(int blank_mode, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct fb_info_valkyrie *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) container_of(info, struct fb_info_valkyrie, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) struct fb_par_valkyrie *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) struct valkyrie_regvals *init = par->init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) if (init == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) switch (blank_mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) case FB_BLANK_UNBLANK: /* unblank */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) out_8(&p->valkyrie_regs->mode.r, init->mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) case FB_BLANK_NORMAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return 1; /* get caller to set CLUT to all black */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) case FB_BLANK_VSYNC_SUSPEND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) case FB_BLANK_HSYNC_SUSPEND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * [kps] Value extracted from MacOS. I don't know
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) * whether this bit disables hsync or vsync, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * whether the hardware can do the other as well.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) out_8(&p->valkyrie_regs->mode.r, init->mode | 0x40);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) case FB_BLANK_POWERDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) out_8(&p->valkyrie_regs->mode.r, 0x66);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) static int valkyriefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) u_int transp, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct fb_info_valkyrie *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) container_of(info, struct fb_info_valkyrie, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) volatile struct cmap_regs __iomem *cmap_regs = p->cmap_regs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) struct fb_par_valkyrie *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (regno > 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) red >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) green >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) blue >>= 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) /* tell clut which address to fill */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) out_8(&p->cmap_regs->addr, regno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) udelay(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) /* send one color channel at a time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) out_8(&cmap_regs->lut, red);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) out_8(&cmap_regs->lut, green);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) out_8(&cmap_regs->lut, blue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) if (regno < 16 && par->cmode == CMODE_16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) ((u32 *)info->pseudo_palette)[regno] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) (regno << 10) | (regno << 5) | regno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) static inline int valkyrie_vram_reqd(int video_mode, int color_mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) int pitch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) struct valkyrie_regvals *init = valkyrie_reg_init[video_mode-1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if ((pitch = init->pitch[color_mode]) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) pitch = 2 * init->pitch[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return init->vres * pitch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) static void set_valkyrie_clock(unsigned char *params)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) #ifdef CONFIG_ADB_CUDA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct adb_request req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) for (i = 0; i < 3; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 0x50, i + 1, params[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) while (!req.complete)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) cuda_poll();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) static void __init valkyrie_choose_mode(struct fb_info_valkyrie *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) p->sense = read_valkyrie_sense(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) printk(KERN_INFO "Monitor sense value = 0x%x\n", p->sense);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) /* Try to pick a video mode out of NVRAM if we have one. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) #ifdef CONFIG_PPC_PMAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (IS_REACHABLE(CONFIG_NVRAM) && default_vmode == VMODE_NVRAM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) default_vmode = nvram_read_byte(NV_VMODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) if (default_vmode <= 0 || default_vmode > VMODE_MAX ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) !valkyrie_reg_init[default_vmode - 1]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) default_vmode = mac_map_monitor_sense(p->sense);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (!valkyrie_reg_init[default_vmode - 1])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) default_vmode = VMODE_640_480_67;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) #ifdef CONFIG_PPC_PMAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) if (IS_REACHABLE(CONFIG_NVRAM) && default_cmode == CMODE_NVRAM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) default_cmode = nvram_read_byte(NV_CMODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * Reduce the pixel size if we don't have enough VRAM or bandwidth.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (default_cmode < CMODE_8 || default_cmode > CMODE_16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) || valkyrie_reg_init[default_vmode-1]->pitch[default_cmode] == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) || valkyrie_vram_reqd(default_vmode, default_cmode) > p->total_vram)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) default_cmode = CMODE_8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) printk(KERN_INFO "using video mode %d and color mode %d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) default_vmode, default_cmode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) int __init valkyriefb_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) struct fb_info_valkyrie *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) unsigned long frame_buffer_phys, cmap_regs_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) char *option = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) if (fb_get_options("valkyriefb", &option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) valkyriefb_setup(option);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) #ifdef CONFIG_MAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) if (!MACH_IS_MAC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) if (!(mac_bi_data.id == MAC_MODEL_Q630
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) /* I'm not sure about this one */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) || mac_bi_data.id == MAC_MODEL_P588))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) /* Hardcoded addresses... welcome to 68k Macintosh country :-) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) frame_buffer_phys = 0xf9000000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) cmap_regs_phys = 0x50f24000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) #else /* ppc (!CONFIG_MAC) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) struct device_node *dp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) struct resource r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) dp = of_find_node_by_name(NULL, "valkyrie");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) if (!dp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (of_address_to_resource(dp, 0, &r)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) printk(KERN_ERR "can't find address for valkyrie\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) frame_buffer_phys = r.start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) cmap_regs_phys = r.start + 0x304000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) #endif /* ppc (!CONFIG_MAC) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) p = kzalloc(sizeof(*p), GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) /* Map in frame buffer and registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (!request_mem_region(frame_buffer_phys, 0x100000, "valkyriefb")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) p->total_vram = 0x100000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) p->frame_buffer_phys = frame_buffer_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) #ifdef CONFIG_MAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) p->frame_buffer = ioremap(frame_buffer_phys, p->total_vram);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) p->frame_buffer = ioremap_wt(frame_buffer_phys, p->total_vram);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) p->cmap_regs_phys = cmap_regs_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) p->cmap_regs = ioremap(p->cmap_regs_phys, 0x1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) p->valkyrie_regs_phys = cmap_regs_phys+0x6000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) p->valkyrie_regs = ioremap(p->valkyrie_regs_phys, 0x1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) if (p->frame_buffer == NULL || p->cmap_regs == NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) || p->valkyrie_regs == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) printk(KERN_ERR "valkyriefb: couldn't map resources\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) valkyrie_choose_mode(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) mac_vmode_to_var(default_vmode, default_cmode, &p->info.var);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) err = valkyrie_init_info(&p->info, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) goto out_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) valkyrie_init_fix(&p->info.fix, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (valkyriefb_set_par(&p->info))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) /* "can't happen" */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) printk(KERN_ERR "valkyriefb: can't set default video mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) if ((err = register_framebuffer(&p->info)) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) goto out_cmap_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) fb_info(&p->info, "valkyrie frame buffer device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) out_cmap_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) fb_dealloc_cmap(&p->info.cmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) out_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) if (p->frame_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) iounmap(p->frame_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) if (p->cmap_regs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) iounmap(p->cmap_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) if (p->valkyrie_regs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) iounmap(p->valkyrie_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) * Get the monitor sense value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) static int read_valkyrie_sense(struct fb_info_valkyrie *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) int sense, in;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) out_8(&p->valkyrie_regs->msense.r, 0); /* release all lines */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) __delay(20000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) sense = ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x70) << 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /* drive each sense line low in turn and collect the other 2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) out_8(&p->valkyrie_regs->msense.r, 4); /* drive A low */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) __delay(20000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x30);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) out_8(&p->valkyrie_regs->msense.r, 2); /* drive B low */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) __delay(20000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x40) >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) sense |= (in & 0x10) >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) out_8(&p->valkyrie_regs->msense.r, 1); /* drive C low */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) __delay(20000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) sense |= ((in = in_8(&p->valkyrie_regs->msense.r)) & 0x60) >> 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) out_8(&p->valkyrie_regs->msense.r, 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) return sense;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) * This routine takes a user-supplied var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) * and picks the best vmode/cmode from it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) /* [bkn] I did a major overhaul of this function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) * Much of the old code was "swiped by jonh from atyfb.c". Because
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) * macmodes has mac_var_to_vmode, I felt that it would be better to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) * rework this function to use that, instead of reinventing the wheel to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) * add support for vmode 17. This was reinforced by the fact that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) * the previously swiped atyfb.c code is no longer there.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) * So, I swiped and adapted platinum_var_to_par (from platinumfb.c), replacing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * most, but not all, of the old code in the process. One side benefit of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * swiping the platinumfb code is that we now have more comprehensible error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * messages when a vmode/cmode switch fails. (Most of the error messages are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) * platinumfb.c, but I added two of my own, and I also changed some commas
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) * into colons to make the messages more consistent with other Linux error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) * messages.) In addition, I think the new code *might* fix some vmode-
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * switching oddities, but I'm not sure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) * There may be some more opportunities for cleanup in here, but this is a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) * good start...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) static int valkyrie_var_to_par(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) struct fb_par_valkyrie *par, const struct fb_info *fb_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) int vmode, cmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) struct valkyrie_regvals *init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) struct fb_info_valkyrie *p =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) container_of(fb_info, struct fb_info_valkyrie, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (mac_var_to_vmode(var, &vmode, &cmode) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) printk(KERN_ERR "valkyriefb: can't do %dx%dx%d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) var->xres, var->yres, var->bits_per_pixel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) /* Check if we know about the wanted video mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) if (vmode < 1 || vmode > VMODE_MAX || !valkyrie_reg_init[vmode-1]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) printk(KERN_ERR "valkyriefb: vmode %d not valid.\n", vmode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) if (cmode != CMODE_8 && cmode != CMODE_16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) printk(KERN_ERR "valkyriefb: cmode %d not valid.\n", cmode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) if (var->xres_virtual > var->xres || var->yres_virtual > var->yres
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) || var->xoffset != 0 || var->yoffset != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) init = valkyrie_reg_init[vmode-1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (init->pitch[cmode] == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) printk(KERN_ERR "valkyriefb: vmode %d does not support "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) "cmode %d.\n", vmode, cmode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) if (valkyrie_vram_reqd(vmode, cmode) > p->total_vram) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) printk(KERN_ERR "valkyriefb: not enough ram for vmode %d, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) "cmode %d.\n", vmode, cmode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) par->vmode = vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) par->cmode = cmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) par->init = init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) par->xres = var->xres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) par->yres = var->yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) par->vxres = par->xres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) par->vyres = par->yres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) static void valkyrie_init_fix(struct fb_fix_screeninfo *fix, struct fb_info_valkyrie *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) memset(fix, 0, sizeof(*fix));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) strcpy(fix->id, "valkyrie");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) fix->mmio_start = p->valkyrie_regs_phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) fix->mmio_len = sizeof(struct valkyrie_regs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) fix->type = FB_TYPE_PACKED_PIXELS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) fix->smem_start = p->frame_buffer_phys + 0x1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) fix->smem_len = p->total_vram;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) fix->type_aux = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) fix->ywrapstep = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) fix->ypanstep = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) fix->xpanstep = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) /* Fix must already be inited above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) static void valkyrie_par_to_fix(struct fb_par_valkyrie *par,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) struct fb_fix_screeninfo *fix)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) fix->smem_len = valkyrie_vram_reqd(par->vmode, par->cmode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) fix->visual = (par->cmode == CMODE_8) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) fix->line_length = par->vxres << par->cmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) /* ywrapstep, xpanstep, ypanstep */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) static int __init valkyrie_init_info(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) struct fb_info_valkyrie *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) info->fbops = &valkyriefb_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) info->screen_base = p->frame_buffer + 0x1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) info->flags = FBINFO_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) info->pseudo_palette = p->pseudo_palette;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) info->par = &p->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return fb_alloc_cmap(&info->cmap, 256, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) * Parse user specified options (`video=valkyriefb:')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) int __init valkyriefb_setup(char *options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) char *this_opt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) if (!options || !*options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) while ((this_opt = strsep(&options, ",")) != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) if (!strncmp(this_opt, "vmode:", 6)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) int vmode = simple_strtoul(this_opt+6, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) if (vmode > 0 && vmode <= VMODE_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) default_vmode = vmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) else if (!strncmp(this_opt, "cmode:", 6)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) int depth = simple_strtoul(this_opt+6, NULL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) switch (depth) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) case 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) default_cmode = CMODE_8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) case 15:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) case 16:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) default_cmode = CMODE_16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) module_init(valkyriefb_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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