summaryrefslogtreecommitdiffstats
path: root/drivers/video/bt431.h
diff options
context:
space:
mode:
authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-02-13 15:31:38 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-04-17 08:10:19 +0300
commitf7018c21350204c4cf628462f229d44d03545254 (patch)
tree408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/bt431.h
parentc26ef3eb3c11274bad1b64498d0a134f85755250 (diff)
downloadblackbird-obmc-linux-f7018c21350204c4cf628462f229d44d03545254.tar.gz
blackbird-obmc-linux-f7018c21350204c4cf628462f229d44d03545254.zip
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.h235
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 */
-}
OpenPOWER on IntegriCloud