diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-08-05 17:04:01 -0300 |
commit | 57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch) | |
tree | 5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/video/console/newport_con.c |
Initial import
Diffstat (limited to 'drivers/video/console/newport_con.c')
-rw-r--r-- | drivers/video/console/newport_con.c | 802 |
1 files changed, 802 insertions, 0 deletions
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c new file mode 100644 index 000000000..a6ab92998 --- /dev/null +++ b/drivers/video/console/newport_con.c @@ -0,0 +1,802 @@ +/* + * newport_con.c: Abscon for newport hardware + * + * (C) 1998 Thomas Bogendoerfer (tsbogend@alpha.franken.de) + * (C) 1999 Ulf Carlsson (ulfc@thepuffingruop.com) + * + * This driver is based on sgicons.c and cons_newport. + * + * Copyright (C) 1996 David S. Miller (davem@davemloft.net) + * Copyright (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx) + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/kd.h> +#include <linux/selection.h> +#include <linux/console.h> +#include <linux/vt_kern.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/slab.h> + +#include <asm/io.h> +#include <asm/uaccess.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/gio_device.h> + +#include <video/newport.h> + +#include <linux/linux_logo.h> +#include <linux/font.h> + +#define FONT_DATA ((unsigned char *)font_vga_8x16.data) + +/* borrowed from fbcon.c */ +#define REFCOUNT(fd) (((int *)(fd))[-1]) +#define FNTSIZE(fd) (((int *)(fd))[-2]) +#define FNTCHARCNT(fd) (((int *)(fd))[-3]) +#define FONT_EXTRA_WORDS 3 + +static unsigned char *font_data[MAX_NR_CONSOLES]; + +static struct newport_regs *npregs; + +static int logo_active; +static int topscan; +static int xcurs_correction = 29; +static int newport_xsize; +static int newport_ysize; +static int newport_has_init; + +static int newport_set_def_font(int unit, struct console_font *op); + +#define BMASK(c) (c << 24) + +#define RENDER(regs, cp) do { \ +(regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \ +(regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \ +(regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \ +(regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \ +(regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \ +(regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \ +(regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \ +(regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \ +} while(0) + +#define TESTVAL 0xdeadbeef +#define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11) + +static inline void newport_render_background(int xstart, int ystart, + int xend, int yend, int ci) +{ + newport_wait(npregs); + npregs->set.wrmask = 0xffffffff; + npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | + NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX + | NPORT_DMODE0_STOPY); + npregs->set.colori = ci; + npregs->set.xystarti = + (xstart << 16) | ((ystart + topscan) & 0x3ff); + npregs->go.xyendi = + ((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff); +} + +static inline void newport_init_cmap(void) +{ + unsigned short i; + + for (i = 0; i < 16; i++) { + newport_bfwait(npregs); + newport_cmap_setaddr(npregs, color_table[i]); + newport_cmap_setrgb(npregs, + default_red[i], + default_grn[i], default_blu[i]); + } +} + +static const struct linux_logo *newport_show_logo(void) +{ +#ifdef CONFIG_LOGO_SGI_CLUT224 + const struct linux_logo *logo = fb_find_logo(8); + const unsigned char *clut; + const unsigned char *data; + unsigned long i; + + if (!logo) + return NULL; + clut = logo->clut; + data = logo->data; + + for (i = 0; i < logo->clutsize; i++) { + newport_bfwait(npregs); + newport_cmap_setaddr(npregs, i + 0x20); + newport_cmap_setrgb(npregs, clut[0], clut[1], clut[2]); + clut += 3; + } + + newport_wait(npregs); + npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | + NPORT_DMODE0_CHOST); + + npregs->set.xystarti = ((newport_xsize - logo->width) << 16) | (0); + npregs->set.xyendi = ((newport_xsize - 1) << 16); + newport_wait(npregs); + + for (i = 0; i < logo->width*logo->height; i++) + npregs->go.hostrw0 = *data++ << 24; + + return logo; +#endif /* CONFIG_LOGO_SGI_CLUT224 */ +} + +static inline void newport_clear_screen(int xstart, int ystart, int xend, + int yend, int ci) +{ + if (logo_active) + return; + + newport_wait(npregs); + npregs->set.wrmask = 0xffffffff; + npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | + NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX + | NPORT_DMODE0_STOPY); + npregs->set.colori = ci; + npregs->set.xystarti = (xstart << 16) | ystart; + npregs->go.xyendi = (xend << 16) | yend; +} + +static inline void newport_clear_lines(int ystart, int yend, int ci) +{ + ystart = ((ystart << 4) + topscan) & 0x3ff; + yend = ((yend << 4) + topscan + 15) & 0x3ff; + newport_clear_screen(0, ystart, 1280 + 63, yend, ci); +} + +static void newport_reset(void) +{ + unsigned short treg; + int i; + + newport_wait(npregs); + treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); + newport_vc2_set(npregs, VC2_IREG_CONTROL, + (treg | VC2_CTRL_EVIDEO)); + + treg = newport_vc2_get(npregs, VC2_IREG_CENTRY); + newport_vc2_set(npregs, VC2_IREG_RADDR, treg); + npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | + NPORT_DMODE_W2 | VC2_PROTOCOL); + for (i = 0; i < 128; i++) { + newport_bfwait(npregs); + if (i == 92 || i == 94) + npregs->set.dcbdata0.byshort.s1 = 0xff00; + else + npregs->set.dcbdata0.byshort.s1 = 0x0000; + } + + newport_init_cmap(); + + /* turn off popup plane */ + npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | + XM9_CRS_CONFIG | NPORT_DMODE_W1); + npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; + npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL | + XM9_CRS_CONFIG | NPORT_DMODE_W1); + npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; + + topscan = 0; + npregs->cset.topscan = 0x3ff; + npregs->cset.xywin = (4096 << 16) | 4096; + + /* Clear the screen. */ + newport_clear_screen(0, 0, 1280 + 63, 1024, 0); +} + +/* + * calculate the actual screen size by reading + * the video timing out of the VC2 + */ +static void newport_get_screensize(void) +{ + int i, cols; + unsigned short ventry, treg; + unsigned short linetable[128]; /* should be enough */ + + ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY); + newport_vc2_set(npregs, VC2_IREG_RADDR, ventry); + npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | + NPORT_DMODE_W2 | VC2_PROTOCOL); + for (i = 0; i < 128; i++) { + newport_bfwait(npregs); + linetable[i] = npregs->set.dcbdata0.byshort.s1; + } + + newport_xsize = newport_ysize = 0; + for (i = 0; i < ARRAY_SIZE(linetable) - 1 && linetable[i + 1]; i += 2) { + cols = 0; + newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]); + npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | + NPORT_DMODE_W2 | VC2_PROTOCOL); + do { + newport_bfwait(npregs); + treg = npregs->set.dcbdata0.byshort.s1; + if ((treg & 1) == 0) + cols += (treg >> 7) & 0xfe; + if ((treg & 0x80) == 0) { + newport_bfwait(npregs); + treg = npregs->set.dcbdata0.byshort.s1; + } + } while ((treg & 0x8000) == 0); + if (cols) { + if (cols > newport_xsize) + newport_xsize = cols; + newport_ysize += linetable[i + 1]; + } + } + printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize); +} + +static void newport_get_revisions(void) +{ + unsigned int tmp; + unsigned int board_rev; + unsigned int rex3_rev; + unsigned int vc2_rev; + unsigned int cmap_rev; + unsigned int xmap9_rev; + unsigned int bt445_rev; + unsigned int bitplanes; + + rex3_rev = npregs->cset.status & NPORT_STAT_VERS; + + npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL | + NCMAP_REGADDR_RREG | NPORT_DMODE_W1); + tmp = npregs->set.dcbdata0.bybytes.b3; + cmap_rev = tmp & 7; + board_rev = (tmp >> 4) & 7; + bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24; + + npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL | + NCMAP_REGADDR_RREG | NPORT_DMODE_W1); + tmp = npregs->set.dcbdata0.bybytes.b3; + if ((tmp & 7) < cmap_rev) + cmap_rev = (tmp & 7); + + vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7; + + npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | + XM9_CRS_REVISION | NPORT_DMODE_W1); + xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7; + + npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | + BT445_CSR_ADDR_REG | NPORT_DMODE_W1); + npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG; + npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | + BT445_CSR_REVISION | NPORT_DMODE_W1); + bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a; + +#define L(a) (char)('A'+(a)) + printk + ("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n", + board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev), + L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev)); +#undef L + + if (board_rev == 3) /* I don't know all affected revisions */ + xcurs_correction = 21; +} + +static void newport_exit(void) +{ + int i; + + /* free memory used by user font */ + for (i = 0; i < MAX_NR_CONSOLES; i++) + newport_set_def_font(i, NULL); +} + +/* Can't be __init, do_take_over_console may call it later */ +static const char *newport_startup(void) +{ + int i; + + npregs->cset.config = NPORT_CFG_GD0; + + if (newport_wait(npregs)) + goto out_unmap; + + npregs->set.xstarti = TESTVAL; + if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL)) + goto out_unmap; + + for (i = 0; i < MAX_NR_CONSOLES; i++) + font_data[i] = FONT_DATA; + + newport_reset(); + newport_get_revisions(); + newport_get_screensize(); + newport_has_init = 1; + + return "SGI Newport"; + +out_unmap: + return NULL; +} + +static void newport_init(struct vc_data *vc, int init) +{ + int cols, rows; + + cols = newport_xsize / 8; + rows = newport_ysize / 16; + vc->vc_can_do_color = 1; + if (init) { + vc->vc_cols = cols; + vc->vc_rows = rows; + } else + vc_resize(vc, cols, rows); +} + +static void newport_deinit(struct vc_data *c) +{ + if (!con_is_bound(&newport_con) && newport_has_init) { + newport_exit(); + newport_has_init = 0; + } +} + +static void newport_clear(struct vc_data *vc, int sy, int sx, int height, + int width) +{ + int xend = ((sx + width) << 3) - 1; + int ystart = ((sy << 4) + topscan) & 0x3ff; + int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff; + + if (logo_active) + return; + + if (ystart < yend) { + newport_clear_screen(sx << 3, ystart, xend, yend, + (vc->vc_color & 0xf0) >> 4); + } else { + newport_clear_screen(sx << 3, ystart, xend, 1023, + (vc->vc_color & 0xf0) >> 4); + newport_clear_screen(sx << 3, 0, xend, yend, + (vc->vc_color & 0xf0) >> 4); + } +} + +static void newport_putc(struct vc_data *vc, int charattr, int ypos, + int xpos) +{ + unsigned char *p; + + p = &font_data[vc->vc_num][(charattr & 0xff) << 4]; + charattr = (charattr >> 8) & 0xff; + xpos <<= 3; + ypos <<= 4; + + newport_render_background(xpos, ypos, xpos, ypos, + (charattr & 0xf0) >> 4); + + /* Set the color and drawing mode. */ + newport_wait(npregs); + npregs->set.colori = charattr & 0xf; + npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | + NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | + NPORT_DMODE0_L32); + + /* Set coordinates for bitmap operation. */ + npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff); + npregs->set.xyendi = ((xpos + 7) << 16); + newport_wait(npregs); + + /* Go, baby, go... */ + RENDER(npregs, p); +} + +static void newport_putcs(struct vc_data *vc, const unsigned short *s, + int count, int ypos, int xpos) +{ + int i; + int charattr; + unsigned char *p; + + charattr = (scr_readw(s) >> 8) & 0xff; + + xpos <<= 3; + ypos <<= 4; + + if (!logo_active) + /* Clear the area behing the string */ + newport_render_background(xpos, ypos, + xpos + ((count - 1) << 3), ypos, + (charattr & 0xf0) >> 4); + + newport_wait(npregs); + + /* Set the color and drawing mode. */ + npregs->set.colori = charattr & 0xf; + npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | + NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | + NPORT_DMODE0_L32); + + for (i = 0; i < count; i++, xpos += 8) { + p = &font_data[vc->vc_num][(scr_readw(s++) & 0xff) << 4]; + + newport_wait(npregs); + + /* Set coordinates for bitmap operation. */ + npregs->set.xystarti = + (xpos << 16) | ((ypos + topscan) & 0x3ff); + npregs->set.xyendi = ((xpos + 7) << 16); + + /* Go, baby, go... */ + RENDER(npregs, p); + } +} + +static void newport_cursor(struct vc_data *vc, int mode) +{ + unsigned short treg; + int xcurs, ycurs; + + switch (mode) { + case CM_ERASE: + treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); + newport_vc2_set(npregs, VC2_IREG_CONTROL, + (treg & ~(VC2_CTRL_ECDISP))); + break; + + case CM_MOVE: + case CM_DRAW: + treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); + newport_vc2_set(npregs, VC2_IREG_CONTROL, + (treg | VC2_CTRL_ECDISP)); + xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2; + ycurs = ((xcurs / vc->vc_cols) << 4) + 31; + xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction; + newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs); + newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs); + } +} + +static int newport_switch(struct vc_data *vc) +{ + static int logo_drawn = 0; + + topscan = 0; + npregs->cset.topscan = 0x3ff; + + if (!logo_drawn) { + if (newport_show_logo()) { + logo_drawn = 1; + logo_active = 1; + } + } + + return 1; +} + +static int newport_blank(struct vc_data *c, int blank, int mode_switch) +{ + unsigned short treg; + + if (blank == 0) { + /* unblank console */ + treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); + newport_vc2_set(npregs, VC2_IREG_CONTROL, + (treg | VC2_CTRL_EDISP)); + } else { + /* blank console */ + treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); + newport_vc2_set(npregs, VC2_IREG_CONTROL, + (treg & ~(VC2_CTRL_EDISP))); + } + return 1; +} + +static int newport_set_font(int unit, struct console_font *op) +{ + int w = op->width; + int h = op->height; + int size = h * op->charcount; + int i; + unsigned char *new_data, *data = op->data, *p; + + /* ladis: when I grow up, there will be a day... and more sizes will + * be supported ;-) */ + 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 */ + + 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 int newport_set_palette(struct vc_data *vc, unsigned char *table) +{ + return -EINVAL; +} + +static int newport_scrolldelta(struct vc_data *vc, int lines) +{ + /* there is (nearly) no off-screen memory, so we can't scroll back */ + return 0; +} + +static int newport_scroll(struct vc_data *vc, int t, int b, int dir, + 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->vc_color & 0xf0) >> 4); + } else { + topscan = (topscan + (-lines << 4)) & 0x3ff; + newport_clear_lines(0, lines - 1, + (vc->vc_color & 0xf0) >> 4); + } + npregs->cset.topscan = (topscan - 1) & 0x3ff; + return 0; + } + + 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 1; +} + +static void newport_bmove(struct vc_data *vc, int sy, int sx, int dy, + int dx, int h, int w) +{ + short xs, ys, xe, ye, xoffs, yoffs, tmp; + + xs = sx << 3; + xe = ((sx + w) << 3) - 1; + /* + * as bmove is only used to move stuff around in the same line + * (h == 1), we don't care about wrap arounds caused by topscan != 0 + */ + ys = ((sy << 4) + topscan) & 0x3ff; + ye = (((sy + h) << 4) - 1 + topscan) & 0x3ff; + xoffs = (dx - sx) << 3; + yoffs = (dy - sy) << 4; + if (xoffs > 0) { + /* move to the right, exchange starting points */ + tmp = xe; + xe = xs; + xs = tmp; + } + newport_wait(npregs); + npregs->set.drawmode0 = (NPORT_DMODE0_S2S | NPORT_DMODE0_BLOCK | + NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX + | NPORT_DMODE0_STOPY); + npregs->set.xystarti = (xs << 16) | ys; + npregs->set.xyendi = (xe << 16) | ye; + npregs->go.xymove = (xoffs << 16) | yoffs; +} + +static int newport_dummy(struct vc_data *c) +{ + return 0; +} + +#define DUMMY (void *) newport_dummy + +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_bmove = newport_bmove, + .con_switch = newport_switch, + .con_blank = newport_blank, + .con_font_set = newport_font_set, + .con_font_default = newport_font_default, + .con_set_palette = newport_set_palette, + .con_scrolldelta = newport_scrolldelta, + .con_set_origin = DUMMY, + .con_save_screen = DUMMY +}; + +static int newport_probe(struct gio_device *dev, + const struct gio_device_id *id) +{ + unsigned long newport_addr; + 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, 0x10000, "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(); + return err; +} + +static void newport_remove(struct gio_device *dev) +{ + give_up_console(&newport_con); + iounmap((void *)npregs); +} + +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, +}; + +int __init newport_console_init(void) +{ + return gio_register_driver(&newport_driver); +} + +void __exit newport_console_exit(void) +{ + gio_unregister_driver(&newport_driver); +} + +module_init(newport_console_init); +module_exit(newport_console_exit); + +MODULE_LICENSE("GPL"); |