diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/bt431.h | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/bt431.h')
-rw-r--r-- | drivers/video/bt431.h | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/drivers/video/bt431.h b/drivers/video/bt431.h deleted file mode 100644 index 04e0cfbba538..000000000000 --- a/drivers/video/bt431.h +++ /dev/null @@ -1,235 +0,0 @@ -/* - * linux/drivers/video/bt431.h - * - * Copyright 2003 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - */ -#include <linux/types.h> - -/* - * Bt431 cursor generator registers, 32-bit aligned. - * Two twin Bt431 are used on the DECstation's PMAG-AA. - */ -struct bt431_regs { - volatile u16 addr_lo; - u16 pad0; - volatile u16 addr_hi; - u16 pad1; - volatile u16 addr_cmap; - u16 pad2; - volatile u16 addr_reg; - u16 pad3; -}; - -static inline u16 bt431_set_value(u8 val) -{ - return ((val << 8) | (val & 0xff)) & 0xffff; -} - -static inline u8 bt431_get_value(u16 val) -{ - return val & 0xff; -} - -/* - * Additional registers addressed indirectly. - */ -#define BT431_REG_CMD 0x0000 -#define BT431_REG_CXLO 0x0001 -#define BT431_REG_CXHI 0x0002 -#define BT431_REG_CYLO 0x0003 -#define BT431_REG_CYHI 0x0004 -#define BT431_REG_WXLO 0x0005 -#define BT431_REG_WXHI 0x0006 -#define BT431_REG_WYLO 0x0007 -#define BT431_REG_WYHI 0x0008 -#define BT431_REG_WWLO 0x0009 -#define BT431_REG_WWHI 0x000a -#define BT431_REG_WHLO 0x000b -#define BT431_REG_WHHI 0x000c - -#define BT431_REG_CRAM_BASE 0x0000 -#define BT431_REG_CRAM_END 0x01ff - -/* - * Command register. - */ -#define BT431_CMD_CURS_ENABLE 0x40 -#define BT431_CMD_XHAIR_ENABLE 0x20 -#define BT431_CMD_OR_CURSORS 0x10 -#define BT431_CMD_AND_CURSORS 0x00 -#define BT431_CMD_1_1_MUX 0x00 -#define BT431_CMD_4_1_MUX 0x04 -#define BT431_CMD_5_1_MUX 0x08 -#define BT431_CMD_xxx_MUX 0x0c -#define BT431_CMD_THICK_1 0x00 -#define BT431_CMD_THICK_3 0x01 -#define BT431_CMD_THICK_5 0x02 -#define BT431_CMD_THICK_7 0x03 - -static inline void bt431_select_reg(struct bt431_regs *regs, int ir) -{ - /* - * The compiler splits the write in two bytes without these - * helper variables. - */ - volatile u16 *lo = &(regs->addr_lo); - volatile u16 *hi = &(regs->addr_hi); - - mb(); - *lo = bt431_set_value(ir & 0xff); - wmb(); - *hi = bt431_set_value((ir >> 8) & 0xff); -} - -/* Autoincrement read/write. */ -static inline u8 bt431_read_reg_inc(struct bt431_regs *regs) -{ - /* - * The compiler splits the write in two bytes without the - * helper variable. - */ - volatile u16 *r = &(regs->addr_reg); - - mb(); - return bt431_get_value(*r); -} - -static inline void bt431_write_reg_inc(struct bt431_regs *regs, u8 value) -{ - /* - * The compiler splits the write in two bytes without the - * helper variable. - */ - volatile u16 *r = &(regs->addr_reg); - - mb(); - *r = bt431_set_value(value); -} - -static inline u8 bt431_read_reg(struct bt431_regs *regs, int ir) -{ - bt431_select_reg(regs, ir); - return bt431_read_reg_inc(regs); -} - -static inline void bt431_write_reg(struct bt431_regs *regs, int ir, u8 value) -{ - bt431_select_reg(regs, ir); - bt431_write_reg_inc(regs, value); -} - -/* Autoincremented read/write for the cursor map. */ -static inline u16 bt431_read_cmap_inc(struct bt431_regs *regs) -{ - /* - * The compiler splits the write in two bytes without the - * helper variable. - */ - volatile u16 *r = &(regs->addr_cmap); - - mb(); - return *r; -} - -static inline void bt431_write_cmap_inc(struct bt431_regs *regs, u16 value) -{ - /* - * The compiler splits the write in two bytes without the - * helper variable. - */ - volatile u16 *r = &(regs->addr_cmap); - - mb(); - *r = value; -} - -static inline u16 bt431_read_cmap(struct bt431_regs *regs, int cr) -{ - bt431_select_reg(regs, cr); - return bt431_read_cmap_inc(regs); -} - -static inline void bt431_write_cmap(struct bt431_regs *regs, int cr, u16 value) -{ - bt431_select_reg(regs, cr); - bt431_write_cmap_inc(regs, value); -} - -static inline void bt431_enable_cursor(struct bt431_regs *regs) -{ - bt431_write_reg(regs, BT431_REG_CMD, - BT431_CMD_CURS_ENABLE | BT431_CMD_OR_CURSORS - | BT431_CMD_4_1_MUX | BT431_CMD_THICK_1); -} - -static inline void bt431_erase_cursor(struct bt431_regs *regs) -{ - bt431_write_reg(regs, BT431_REG_CMD, BT431_CMD_4_1_MUX); -} - -static inline void bt431_position_cursor(struct bt431_regs *regs, u16 x, u16 y) -{ - /* - * Magic from the MACH sources. - * - * Cx = x + D + H - P - * P = 37 if 1:1, 52 if 4:1, 57 if 5:1 - * D = pixel skew between outdata and external data - * H = pixels between HSYNCH falling and active video - * - * Cy = y + V - 32 - * V = scanlines between HSYNCH falling, two or more - * clocks after VSYNCH falling, and active video - */ - x += 412 - 52; - y += 68 - 32; - - /* Use autoincrement. */ - bt431_select_reg(regs, BT431_REG_CXLO); - bt431_write_reg_inc(regs, x & 0xff); /* BT431_REG_CXLO */ - bt431_write_reg_inc(regs, (x >> 8) & 0x0f); /* BT431_REG_CXHI */ - bt431_write_reg_inc(regs, y & 0xff); /* BT431_REG_CYLO */ - bt431_write_reg_inc(regs, (y >> 8) & 0x0f); /* BT431_REG_CYHI */ -} - -static inline void bt431_set_font(struct bt431_regs *regs, u8 fgc, - u16 width, u16 height) -{ - int i; - u16 fgp = fgc ? 0xffff : 0x0000; - u16 bgp = fgc ? 0x0000 : 0xffff; - - bt431_select_reg(regs, BT431_REG_CRAM_BASE); - for (i = BT431_REG_CRAM_BASE; i <= BT431_REG_CRAM_END; i++) { - u16 value; - - if (height << 6 <= i << 3) - value = bgp; - else if (width <= i % 8 << 3) - value = bgp; - else if (((width >> 3) & 0xffff) > i % 8) - value = fgp; - else - value = fgp & ~(bgp << (width % 8 << 1)); - - bt431_write_cmap_inc(regs, value); - } -} - -static inline void bt431_init_cursor(struct bt431_regs *regs) -{ - /* no crosshair window */ - bt431_select_reg(regs, BT431_REG_WXLO); - bt431_write_reg_inc(regs, 0x00); /* BT431_REG_WXLO */ - bt431_write_reg_inc(regs, 0x00); /* BT431_REG_WXHI */ - bt431_write_reg_inc(regs, 0x00); /* BT431_REG_WYLO */ - bt431_write_reg_inc(regs, 0x00); /* BT431_REG_WYHI */ - bt431_write_reg_inc(regs, 0x00); /* BT431_REG_WWLO */ - bt431_write_reg_inc(regs, 0x00); /* BT431_REG_WWHI */ - bt431_write_reg_inc(regs, 0x00); /* BT431_REG_WHLO */ - bt431_write_reg_inc(regs, 0x00); /* BT431_REG_WHHI */ -} |