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745 lines
19 KiB
745 lines
19 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* newport_con.c: Abscon for newport hardware |
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* |
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* (C) 1998 Thomas Bogendoerfer ([email protected]) |
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* (C) 1999 Ulf Carlsson ([email protected]) |
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* |
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* This driver is based on sgicons.c and cons_newport. |
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* |
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* Copyright (C) 1996 David S. Miller ([email protected]) |
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* Copyright (C) 1997 Miguel de Icaza ([email protected]) |
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*/ |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/kd.h> |
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#include <linux/selection.h> |
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#include <linux/console.h> |
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#include <linux/vt_kern.h> |
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#include <linux/mm.h> |
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#include <linux/module.h> |
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#include <linux/slab.h> |
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#include <asm/io.h> |
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#include <linux/uaccess.h> |
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#include <asm/page.h> |
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#include <asm/gio_device.h> |
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#include <video/newport.h> |
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#include <linux/linux_logo.h> |
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#include <linux/font.h> |
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#define NEWPORT_LEN 0x10000 |
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#define FONT_DATA ((unsigned char *)font_vga_8x16.data) |
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static unsigned char *font_data[MAX_NR_CONSOLES]; |
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static struct newport_regs *npregs; |
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static unsigned long newport_addr; |
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static int logo_active; |
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static int topscan; |
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static int xcurs_correction = 29; |
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static int newport_xsize; |
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static int newport_ysize; |
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static int newport_has_init; |
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static int newport_set_def_font(int unit, struct console_font *op); |
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#define BMASK(c) (c << 24) |
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#define RENDER(regs, cp) do { \ |
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(regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \ |
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(regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \ |
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(regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \ |
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(regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \ |
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(regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \ |
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(regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \ |
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(regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \ |
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(regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \ |
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} while(0) |
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#define TESTVAL 0xdeadbeef |
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#define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11) |
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static inline void newport_render_background(int xstart, int ystart, |
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int xend, int yend, int ci) |
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{ |
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newport_wait(npregs); |
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npregs->set.wrmask = 0xffffffff; |
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npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | |
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NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX |
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| NPORT_DMODE0_STOPY); |
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npregs->set.colori = ci; |
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npregs->set.xystarti = |
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(xstart << 16) | ((ystart + topscan) & 0x3ff); |
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npregs->go.xyendi = |
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((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff); |
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} |
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static inline void newport_init_cmap(void) |
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{ |
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unsigned short i; |
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for (i = 0; i < 16; i++) { |
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newport_bfwait(npregs); |
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newport_cmap_setaddr(npregs, color_table[i]); |
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newport_cmap_setrgb(npregs, |
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default_red[i], |
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default_grn[i], default_blu[i]); |
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} |
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} |
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static const struct linux_logo *newport_show_logo(void) |
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{ |
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#ifdef CONFIG_LOGO_SGI_CLUT224 |
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const struct linux_logo *logo = fb_find_logo(8); |
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const unsigned char *clut; |
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const unsigned char *data; |
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unsigned long i; |
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if (!logo) |
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return NULL; |
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clut = logo->clut; |
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data = logo->data; |
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for (i = 0; i < logo->clutsize; i++) { |
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newport_bfwait(npregs); |
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newport_cmap_setaddr(npregs, i + 0x20); |
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newport_cmap_setrgb(npregs, clut[0], clut[1], clut[2]); |
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clut += 3; |
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} |
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newport_wait(npregs); |
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npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | |
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NPORT_DMODE0_CHOST); |
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npregs->set.xystarti = ((newport_xsize - logo->width) << 16) | (0); |
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npregs->set.xyendi = ((newport_xsize - 1) << 16); |
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newport_wait(npregs); |
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for (i = 0; i < logo->width*logo->height; i++) |
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npregs->go.hostrw0 = *data++ << 24; |
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return logo; |
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#else |
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return NULL; |
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#endif /* CONFIG_LOGO_SGI_CLUT224 */ |
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} |
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static inline void newport_clear_screen(int xstart, int ystart, int xend, |
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int yend, int ci) |
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{ |
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if (logo_active) |
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return; |
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newport_wait(npregs); |
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npregs->set.wrmask = 0xffffffff; |
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npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | |
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NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX |
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| NPORT_DMODE0_STOPY); |
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npregs->set.colori = ci; |
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npregs->set.xystarti = (xstart << 16) | ystart; |
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npregs->go.xyendi = (xend << 16) | yend; |
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} |
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static inline void newport_clear_lines(int ystart, int yend, int ci) |
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{ |
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ystart = ((ystart << 4) + topscan) & 0x3ff; |
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yend = ((yend << 4) + topscan + 15) & 0x3ff; |
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newport_clear_screen(0, ystart, 1280 + 63, yend, ci); |
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} |
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static void newport_reset(void) |
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{ |
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unsigned short treg; |
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int i; |
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newport_wait(npregs); |
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treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); |
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newport_vc2_set(npregs, VC2_IREG_CONTROL, |
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(treg | VC2_CTRL_EVIDEO)); |
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treg = newport_vc2_get(npregs, VC2_IREG_CENTRY); |
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newport_vc2_set(npregs, VC2_IREG_RADDR, treg); |
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npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | |
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NPORT_DMODE_W2 | VC2_PROTOCOL); |
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for (i = 0; i < 128; i++) { |
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newport_bfwait(npregs); |
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if (i == 92 || i == 94) |
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npregs->set.dcbdata0.byshort.s1 = 0xff00; |
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else |
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npregs->set.dcbdata0.byshort.s1 = 0x0000; |
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} |
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newport_init_cmap(); |
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/* turn off popup plane */ |
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npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | |
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XM9_CRS_CONFIG | NPORT_DMODE_W1); |
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npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; |
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npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL | |
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XM9_CRS_CONFIG | NPORT_DMODE_W1); |
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npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; |
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topscan = 0; |
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npregs->cset.topscan = 0x3ff; |
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npregs->cset.xywin = (4096 << 16) | 4096; |
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/* Clear the screen. */ |
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newport_clear_screen(0, 0, 1280 + 63, 1024, 0); |
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} |
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/* |
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* calculate the actual screen size by reading |
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* the video timing out of the VC2 |
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*/ |
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static void newport_get_screensize(void) |
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{ |
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int i, cols; |
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unsigned short ventry, treg; |
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unsigned short linetable[128]; /* should be enough */ |
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ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY); |
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newport_vc2_set(npregs, VC2_IREG_RADDR, ventry); |
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npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | |
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NPORT_DMODE_W2 | VC2_PROTOCOL); |
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for (i = 0; i < 128; i++) { |
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newport_bfwait(npregs); |
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linetable[i] = npregs->set.dcbdata0.byshort.s1; |
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} |
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newport_xsize = newport_ysize = 0; |
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for (i = 0; i < ARRAY_SIZE(linetable) - 1 && linetable[i + 1]; i += 2) { |
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cols = 0; |
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newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]); |
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npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | |
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NPORT_DMODE_W2 | VC2_PROTOCOL); |
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do { |
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newport_bfwait(npregs); |
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treg = npregs->set.dcbdata0.byshort.s1; |
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if ((treg & 1) == 0) |
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cols += (treg >> 7) & 0xfe; |
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if ((treg & 0x80) == 0) { |
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newport_bfwait(npregs); |
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treg = npregs->set.dcbdata0.byshort.s1; |
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} |
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} while ((treg & 0x8000) == 0); |
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if (cols) { |
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if (cols > newport_xsize) |
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newport_xsize = cols; |
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newport_ysize += linetable[i + 1]; |
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} |
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} |
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printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize); |
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} |
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static void newport_get_revisions(void) |
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{ |
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unsigned int tmp; |
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unsigned int board_rev; |
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unsigned int rex3_rev; |
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unsigned int vc2_rev; |
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unsigned int cmap_rev; |
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unsigned int xmap9_rev; |
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unsigned int bt445_rev; |
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unsigned int bitplanes; |
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rex3_rev = npregs->cset.status & NPORT_STAT_VERS; |
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npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL | |
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NCMAP_REGADDR_RREG | NPORT_DMODE_W1); |
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tmp = npregs->set.dcbdata0.bybytes.b3; |
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cmap_rev = tmp & 7; |
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board_rev = (tmp >> 4) & 7; |
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bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24; |
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npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL | |
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NCMAP_REGADDR_RREG | NPORT_DMODE_W1); |
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tmp = npregs->set.dcbdata0.bybytes.b3; |
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if ((tmp & 7) < cmap_rev) |
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cmap_rev = (tmp & 7); |
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vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7; |
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npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | |
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XM9_CRS_REVISION | NPORT_DMODE_W1); |
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xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7; |
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npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | |
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BT445_CSR_ADDR_REG | NPORT_DMODE_W1); |
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npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG; |
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npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | |
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BT445_CSR_REVISION | NPORT_DMODE_W1); |
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bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a; |
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#define L(a) (char)('A'+(a)) |
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printk |
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("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n", |
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board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev), |
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L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev)); |
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#undef L |
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if (board_rev == 3) /* I don't know all affected revisions */ |
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xcurs_correction = 21; |
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} |
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static void newport_exit(void) |
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{ |
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int i; |
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/* free memory used by user font */ |
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for (i = 0; i < MAX_NR_CONSOLES; i++) |
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newport_set_def_font(i, NULL); |
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} |
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/* Can't be __init, do_take_over_console may call it later */ |
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static const char *newport_startup(void) |
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{ |
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int i; |
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npregs->cset.config = NPORT_CFG_GD0; |
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if (newport_wait(npregs)) |
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goto out_unmap; |
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npregs->set.xstarti = TESTVAL; |
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if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL)) |
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goto out_unmap; |
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for (i = 0; i < MAX_NR_CONSOLES; i++) |
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font_data[i] = FONT_DATA; |
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newport_reset(); |
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newport_get_revisions(); |
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newport_get_screensize(); |
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newport_has_init = 1; |
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return "SGI Newport"; |
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out_unmap: |
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return NULL; |
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} |
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static void newport_init(struct vc_data *vc, int init) |
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{ |
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int cols, rows; |
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cols = newport_xsize / 8; |
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rows = newport_ysize / 16; |
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vc->vc_can_do_color = 1; |
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if (init) { |
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vc->vc_cols = cols; |
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vc->vc_rows = rows; |
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} else |
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vc_resize(vc, cols, rows); |
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} |
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static void newport_deinit(struct vc_data *c) |
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{ |
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if (!con_is_bound(&newport_con) && newport_has_init) { |
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newport_exit(); |
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newport_has_init = 0; |
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} |
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} |
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static void newport_clear(struct vc_data *vc, int sy, int sx, int height, |
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int width) |
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{ |
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int xend = ((sx + width) << 3) - 1; |
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int ystart = ((sy << 4) + topscan) & 0x3ff; |
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int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff; |
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if (logo_active) |
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return; |
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if (ystart < yend) { |
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newport_clear_screen(sx << 3, ystart, xend, yend, |
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(vc->state.color & 0xf0) >> 4); |
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} else { |
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newport_clear_screen(sx << 3, ystart, xend, 1023, |
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(vc->state.color & 0xf0) >> 4); |
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newport_clear_screen(sx << 3, 0, xend, yend, |
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(vc->state.color & 0xf0) >> 4); |
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} |
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} |
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static void newport_putc(struct vc_data *vc, int charattr, int ypos, |
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int xpos) |
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{ |
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unsigned char *p; |
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p = &font_data[vc->vc_num][(charattr & 0xff) << 4]; |
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charattr = (charattr >> 8) & 0xff; |
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xpos <<= 3; |
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ypos <<= 4; |
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newport_render_background(xpos, ypos, xpos, ypos, |
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(charattr & 0xf0) >> 4); |
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/* Set the color and drawing mode. */ |
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newport_wait(npregs); |
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npregs->set.colori = charattr & 0xf; |
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npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | |
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NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | |
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NPORT_DMODE0_L32); |
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/* Set coordinates for bitmap operation. */ |
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npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff); |
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npregs->set.xyendi = ((xpos + 7) << 16); |
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newport_wait(npregs); |
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/* Go, baby, go... */ |
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RENDER(npregs, p); |
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} |
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static void newport_putcs(struct vc_data *vc, const unsigned short *s, |
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int count, int ypos, int xpos) |
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{ |
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int i; |
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int charattr; |
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unsigned char *p; |
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charattr = (scr_readw(s) >> 8) & 0xff; |
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xpos <<= 3; |
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ypos <<= 4; |
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if (!logo_active) |
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/* Clear the area behing the string */ |
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newport_render_background(xpos, ypos, |
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xpos + ((count - 1) << 3), ypos, |
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(charattr & 0xf0) >> 4); |
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newport_wait(npregs); |
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/* Set the color and drawing mode. */ |
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npregs->set.colori = charattr & 0xf; |
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npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | |
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NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | |
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NPORT_DMODE0_L32); |
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for (i = 0; i < count; i++, xpos += 8) { |
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p = &font_data[vc->vc_num][(scr_readw(s++) & 0xff) << 4]; |
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newport_wait(npregs); |
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/* Set coordinates for bitmap operation. */ |
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npregs->set.xystarti = |
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(xpos << 16) | ((ypos + topscan) & 0x3ff); |
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npregs->set.xyendi = ((xpos + 7) << 16); |
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/* Go, baby, go... */ |
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RENDER(npregs, p); |
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} |
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} |
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static void newport_cursor(struct vc_data *vc, int mode) |
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{ |
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unsigned short treg; |
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int xcurs, ycurs; |
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|
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switch (mode) { |
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case CM_ERASE: |
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treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); |
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newport_vc2_set(npregs, VC2_IREG_CONTROL, |
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(treg & ~(VC2_CTRL_ECDISP))); |
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break; |
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|
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case CM_MOVE: |
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case CM_DRAW: |
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treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); |
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newport_vc2_set(npregs, VC2_IREG_CONTROL, |
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(treg | VC2_CTRL_ECDISP)); |
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xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2; |
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ycurs = ((xcurs / vc->vc_cols) << 4) + 31; |
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xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction; |
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newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs); |
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newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs); |
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} |
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} |
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static int newport_switch(struct vc_data *vc) |
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{ |
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static int logo_drawn = 0; |
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topscan = 0; |
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npregs->cset.topscan = 0x3ff; |
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|
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if (!logo_drawn) { |
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if (newport_show_logo()) { |
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logo_drawn = 1; |
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logo_active = 1; |
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} |
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} |
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return 1; |
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} |
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static int newport_blank(struct vc_data *c, int blank, int mode_switch) |
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{ |
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unsigned short treg; |
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|
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if (blank == 0) { |
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/* unblank console */ |
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treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); |
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newport_vc2_set(npregs, VC2_IREG_CONTROL, |
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(treg | VC2_CTRL_EDISP)); |
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} else { |
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/* blank console */ |
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treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); |
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newport_vc2_set(npregs, VC2_IREG_CONTROL, |
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(treg & ~(VC2_CTRL_EDISP))); |
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} |
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return 1; |
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} |
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static int newport_set_font(int unit, struct console_font *op) |
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{ |
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int w = op->width; |
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int h = op->height; |
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int size = h * op->charcount; |
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int i; |
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unsigned char *new_data, *data = op->data, *p; |
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|
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/* ladis: when I grow up, there will be a day... and more sizes will |
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* be supported ;-) */ |
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if ((w != 8) || (h != 16) |
|
|| (op->charcount != 256 && op->charcount != 512)) |
|
return -EINVAL; |
|
|
|
if (!(new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, |
|
GFP_USER))) return -ENOMEM; |
|
|
|
new_data += FONT_EXTRA_WORDS * sizeof(int); |
|
FNTSIZE(new_data) = size; |
|
FNTCHARCNT(new_data) = op->charcount; |
|
REFCOUNT(new_data) = 0; /* usage counter */ |
|
FNTSUM(new_data) = 0; |
|
|
|
p = new_data; |
|
for (i = 0; i < op->charcount; i++) { |
|
memcpy(p, data, h); |
|
data += 32; |
|
p += h; |
|
} |
|
|
|
/* check if font is already used by other console */ |
|
for (i = 0; i < MAX_NR_CONSOLES; i++) { |
|
if (font_data[i] != FONT_DATA |
|
&& FNTSIZE(font_data[i]) == size |
|
&& !memcmp(font_data[i], new_data, size)) { |
|
kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); |
|
/* current font is the same as the new one */ |
|
if (i == unit) |
|
return 0; |
|
new_data = font_data[i]; |
|
break; |
|
} |
|
} |
|
/* old font is user font */ |
|
if (font_data[unit] != FONT_DATA) { |
|
if (--REFCOUNT(font_data[unit]) == 0) |
|
kfree(font_data[unit] - |
|
FONT_EXTRA_WORDS * sizeof(int)); |
|
} |
|
REFCOUNT(new_data)++; |
|
font_data[unit] = new_data; |
|
|
|
return 0; |
|
} |
|
|
|
static int newport_set_def_font(int unit, struct console_font *op) |
|
{ |
|
if (font_data[unit] != FONT_DATA) { |
|
if (--REFCOUNT(font_data[unit]) == 0) |
|
kfree(font_data[unit] - |
|
FONT_EXTRA_WORDS * sizeof(int)); |
|
font_data[unit] = FONT_DATA; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int newport_font_default(struct vc_data *vc, struct console_font *op, char *name) |
|
{ |
|
return newport_set_def_font(vc->vc_num, op); |
|
} |
|
|
|
static int newport_font_set(struct vc_data *vc, struct console_font *font, unsigned flags) |
|
{ |
|
return newport_set_font(vc->vc_num, font); |
|
} |
|
|
|
static bool newport_scroll(struct vc_data *vc, unsigned int t, unsigned int b, |
|
enum con_scroll dir, unsigned int lines) |
|
{ |
|
int count, x, y; |
|
unsigned short *s, *d; |
|
unsigned short chattr; |
|
|
|
logo_active = 0; /* it's time to disable the logo now.. */ |
|
|
|
if (t == 0 && b == vc->vc_rows) { |
|
if (dir == SM_UP) { |
|
topscan = (topscan + (lines << 4)) & 0x3ff; |
|
newport_clear_lines(vc->vc_rows - lines, |
|
vc->vc_rows - 1, |
|
(vc->state.color & 0xf0) >> 4); |
|
} else { |
|
topscan = (topscan + (-lines << 4)) & 0x3ff; |
|
newport_clear_lines(0, lines - 1, |
|
(vc->state.color & 0xf0) >> 4); |
|
} |
|
npregs->cset.topscan = (topscan - 1) & 0x3ff; |
|
return false; |
|
} |
|
|
|
count = (b - t - lines) * vc->vc_cols; |
|
if (dir == SM_UP) { |
|
x = 0; |
|
y = t; |
|
s = (unsigned short *) (vc->vc_origin + |
|
vc->vc_size_row * (t + lines)); |
|
d = (unsigned short *) (vc->vc_origin + |
|
vc->vc_size_row * t); |
|
while (count--) { |
|
chattr = scr_readw(s++); |
|
if (chattr != scr_readw(d)) { |
|
newport_putc(vc, chattr, y, x); |
|
scr_writew(chattr, d); |
|
} |
|
d++; |
|
if (++x == vc->vc_cols) { |
|
x = 0; |
|
y++; |
|
} |
|
} |
|
d = (unsigned short *) (vc->vc_origin + |
|
vc->vc_size_row * (b - lines)); |
|
x = 0; |
|
y = b - lines; |
|
for (count = 0; count < (lines * vc->vc_cols); count++) { |
|
if (scr_readw(d) != vc->vc_video_erase_char) { |
|
newport_putc(vc, vc->vc_video_erase_char, |
|
y, x); |
|
scr_writew(vc->vc_video_erase_char, d); |
|
} |
|
d++; |
|
if (++x == vc->vc_cols) { |
|
x = 0; |
|
y++; |
|
} |
|
} |
|
} else { |
|
x = vc->vc_cols - 1; |
|
y = b - 1; |
|
s = (unsigned short *) (vc->vc_origin + |
|
vc->vc_size_row * (b - lines) - 2); |
|
d = (unsigned short *) (vc->vc_origin + |
|
vc->vc_size_row * b - 2); |
|
while (count--) { |
|
chattr = scr_readw(s--); |
|
if (chattr != scr_readw(d)) { |
|
newport_putc(vc, chattr, y, x); |
|
scr_writew(chattr, d); |
|
} |
|
d--; |
|
if (x-- == 0) { |
|
x = vc->vc_cols - 1; |
|
y--; |
|
} |
|
} |
|
d = (unsigned short *) (vc->vc_origin + |
|
vc->vc_size_row * t); |
|
x = 0; |
|
y = t; |
|
for (count = 0; count < (lines * vc->vc_cols); count++) { |
|
if (scr_readw(d) != vc->vc_video_erase_char) { |
|
newport_putc(vc, vc->vc_video_erase_char, |
|
y, x); |
|
scr_writew(vc->vc_video_erase_char, d); |
|
} |
|
d++; |
|
if (++x == vc->vc_cols) { |
|
x = 0; |
|
y++; |
|
} |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
static void newport_save_screen(struct vc_data *vc) { } |
|
|
|
const struct consw newport_con = { |
|
.owner = THIS_MODULE, |
|
.con_startup = newport_startup, |
|
.con_init = newport_init, |
|
.con_deinit = newport_deinit, |
|
.con_clear = newport_clear, |
|
.con_putc = newport_putc, |
|
.con_putcs = newport_putcs, |
|
.con_cursor = newport_cursor, |
|
.con_scroll = newport_scroll, |
|
.con_switch = newport_switch, |
|
.con_blank = newport_blank, |
|
.con_font_set = newport_font_set, |
|
.con_font_default = newport_font_default, |
|
.con_save_screen = newport_save_screen |
|
}; |
|
|
|
static int newport_probe(struct gio_device *dev, |
|
const struct gio_device_id *id) |
|
{ |
|
int err; |
|
|
|
if (!dev->resource.start) |
|
return -EINVAL; |
|
|
|
if (npregs) |
|
return -EBUSY; /* we only support one Newport as console */ |
|
|
|
newport_addr = dev->resource.start + 0xF0000; |
|
if (!request_mem_region(newport_addr, NEWPORT_LEN, "Newport")) |
|
return -ENODEV; |
|
|
|
npregs = (struct newport_regs *)/* ioremap cannot fail */ |
|
ioremap(newport_addr, sizeof(struct newport_regs)); |
|
console_lock(); |
|
err = do_take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1); |
|
console_unlock(); |
|
|
|
if (err) { |
|
iounmap((void *)npregs); |
|
release_mem_region(newport_addr, NEWPORT_LEN); |
|
} |
|
return err; |
|
} |
|
|
|
static void newport_remove(struct gio_device *dev) |
|
{ |
|
give_up_console(&newport_con); |
|
iounmap((void *)npregs); |
|
release_mem_region(newport_addr, NEWPORT_LEN); |
|
} |
|
|
|
static struct gio_device_id newport_ids[] = { |
|
{ .id = 0x7e }, |
|
{ .id = 0xff } |
|
}; |
|
|
|
MODULE_ALIAS("gio:7e"); |
|
|
|
static struct gio_driver newport_driver = { |
|
.name = "newport", |
|
.id_table = newport_ids, |
|
.probe = newport_probe, |
|
.remove = newport_remove, |
|
}; |
|
module_driver(newport_driver, gio_register_driver, gio_unregister_driver); |
|
|
|
MODULE_LICENSE("GPL");
|
|
|