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authorLinus Torvalds <torvalds@linux-foundation.org>2008-06-13 10:34:01 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-06-13 10:34:01 -0400
commitd36e311070ee3a378a54142a168ff5cfedba33d5 (patch)
tree4a5520362a9d9a024c4a170ebc19589fe6afa3a5
parent61d6cc54896811086b51fa78d440311974a09b3a (diff)
parent738eca74d1bd3e51180de179b7b74d4e34c4e5a3 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: get leo framebuffer working
-rw-r--r--drivers/video/leo.c58
1 files changed, 26 insertions, 32 deletions
diff --git a/drivers/video/leo.c b/drivers/video/leo.c
index 8bc46e930340..13fea61d6ae4 100644
--- a/drivers/video/leo.c
+++ b/drivers/video/leo.c
@@ -17,8 +17,8 @@
17#include <linux/fb.h> 17#include <linux/fb.h>
18#include <linux/mm.h> 18#include <linux/mm.h>
19#include <linux/of_device.h> 19#include <linux/of_device.h>
20#include <linux/io.h>
20 21
21#include <asm/io.h>
22#include <asm/fbio.h> 22#include <asm/fbio.h>
23 23
24#include "sbuslib.h" 24#include "sbuslib.h"
@@ -33,7 +33,6 @@ static int leo_blank(int, struct fb_info *);
33 33
34static int leo_mmap(struct fb_info *, struct vm_area_struct *); 34static int leo_mmap(struct fb_info *, struct vm_area_struct *);
35static int leo_ioctl(struct fb_info *, unsigned int, unsigned long); 35static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
36static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *);
37 36
38/* 37/*
39 * Frame buffer operations 38 * Frame buffer operations
@@ -43,7 +42,6 @@ static struct fb_ops leo_ops = {
43 .owner = THIS_MODULE, 42 .owner = THIS_MODULE,
44 .fb_setcolreg = leo_setcolreg, 43 .fb_setcolreg = leo_setcolreg,
45 .fb_blank = leo_blank, 44 .fb_blank = leo_blank,
46 .fb_pan_display = leo_pan_display,
47 .fb_fillrect = cfb_fillrect, 45 .fb_fillrect = cfb_fillrect,
48 .fb_copyarea = cfb_copyarea, 46 .fb_copyarea = cfb_copyarea,
49 .fb_imageblit = cfb_imageblit, 47 .fb_imageblit = cfb_imageblit,
@@ -78,7 +76,7 @@ static struct fb_ops leo_ops = {
78#define LEO_CUR_TYPE_CMAP 0x00000050 76#define LEO_CUR_TYPE_CMAP 0x00000050
79 77
80struct leo_cursor { 78struct leo_cursor {
81 u8 xxx0[16]; 79 u8 xxx0[16];
82 u32 cur_type; 80 u32 cur_type;
83 u32 cur_misc; 81 u32 cur_misc;
84 u32 cur_cursxy; 82 u32 cur_cursxy;
@@ -105,7 +103,7 @@ struct leo_lx_krn {
105 103
106struct leo_lc_ss0_krn { 104struct leo_lc_ss0_krn {
107 u32 misc; 105 u32 misc;
108 u8 xxx0[0x800-4]; 106 u8 xxx0[0x800-4];
109 u32 rev; 107 u32 rev;
110}; 108};
111 109
@@ -116,7 +114,7 @@ struct leo_lc_ss0_usr {
116 u32 fontt; 114 u32 fontt;
117 u32 extent; 115 u32 extent;
118 u32 src; 116 u32 src;
119 u32 dst; 117 u32 dst;
120 u32 copy; 118 u32 copy;
121 u32 fill; 119 u32 fill;
122}; 120};
@@ -129,8 +127,8 @@ struct leo_lc_ss1_usr {
129 u8 unknown; 127 u8 unknown;
130}; 128};
131 129
132struct leo_ld { 130struct leo_ld_ss0 {
133 u8 xxx0[0xe00]; 131 u8 xxx0[0xe00];
134 u32 csr; 132 u32 csr;
135 u32 wid; 133 u32 wid;
136 u32 wmask; 134 u32 wmask;
@@ -144,13 +142,13 @@ struct leo_ld {
144 u32 src; /* Copy/Scroll (SS0 only) */ 142 u32 src; /* Copy/Scroll (SS0 only) */
145 u32 dst; /* Copy/Scroll/Fill (SS0 only) */ 143 u32 dst; /* Copy/Scroll/Fill (SS0 only) */
146 u32 extent; /* Copy/Scroll/Fill size (SS0 only) */ 144 u32 extent; /* Copy/Scroll/Fill size (SS0 only) */
147 u32 xxx1[3]; 145 u32 xxx1[3];
148 u32 setsem; /* SS1 only */ 146 u32 setsem; /* SS1 only */
149 u32 clrsem; /* SS1 only */ 147 u32 clrsem; /* SS1 only */
150 u32 clrpick; /* SS1 only */ 148 u32 clrpick; /* SS1 only */
151 u32 clrdat; /* SS1 only */ 149 u32 clrdat; /* SS1 only */
152 u32 alpha; /* SS1 only */ 150 u32 alpha; /* SS1 only */
153 u8 xxx2[0x2c]; 151 u8 xxx2[0x2c];
154 u32 winbg; 152 u32 winbg;
155 u32 planemask; 153 u32 planemask;
156 u32 rop; 154 u32 rop;
@@ -199,11 +197,12 @@ struct leo_par {
199static void leo_wait(struct leo_lx_krn __iomem *lx_krn) 197static void leo_wait(struct leo_lx_krn __iomem *lx_krn)
200{ 198{
201 int i; 199 int i;
202 200
203 for (i = 0; 201 for (i = 0;
204 (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && i < 300000; 202 (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) &&
203 i < 300000;
205 i++) 204 i++)
206 udelay (1); /* Busy wait at most 0.3 sec */ 205 udelay(1); /* Busy wait at most 0.3 sec */
207 return; 206 return;
208} 207}
209 208
@@ -221,7 +220,7 @@ static int leo_setcolreg(unsigned regno,
221 unsigned transp, struct fb_info *info) 220 unsigned transp, struct fb_info *info)
222{ 221{
223 struct leo_par *par = (struct leo_par *) info->par; 222 struct leo_par *par = (struct leo_par *) info->par;
224 struct leo_lx_krn __iomem *lx_krn = par->lx_krn; 223 struct leo_lx_krn __iomem *lx_krn = par->lx_krn;
225 unsigned long flags; 224 unsigned long flags;
226 u32 val; 225 u32 val;
227 int i; 226 int i;
@@ -408,7 +407,7 @@ static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl)
408 leo_wait(lx_krn); 407 leo_wait(lx_krn);
409 408
410 for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) { 409 for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) {
411 switch(wi->wi_type) { 410 switch (wi->wi_type) {
412 case FB_WID_DBL_8: 411 case FB_WID_DBL_8:
413 j = (wi->wi_index & 0xf) + 0x40; 412 j = (wi->wi_index & 0xf) + 0x40;
414 break; 413 break;
@@ -453,13 +452,12 @@ static void leo_init_wids(struct fb_info *info)
453 wi.wi_index = 1; 452 wi.wi_index = 1;
454 wi.wi_values [0] = 0x30; 453 wi.wi_values [0] = 0x30;
455 leo_wid_put(info, &wl); 454 leo_wid_put(info, &wl);
456
457} 455}
458 456
459static void leo_switch_from_graph(struct fb_info *info) 457static void leo_switch_from_graph(struct fb_info *info)
460{ 458{
461 struct leo_par *par = (struct leo_par *) info->par; 459 struct leo_par *par = (struct leo_par *) info->par;
462 struct leo_ld __iomem *ss = (struct leo_ld __iomem *) par->ld_ss0; 460 struct leo_ld_ss0 __iomem *ss = par->ld_ss0;
463 unsigned long flags; 461 unsigned long flags;
464 u32 val; 462 u32 val;
465 463
@@ -485,19 +483,13 @@ static void leo_switch_from_graph(struct fb_info *info)
485 val = sbus_readl(&par->lc_ss0_usr->csr); 483 val = sbus_readl(&par->lc_ss0_usr->csr);
486 } while (val & 0x20000000); 484 } while (val & 0x20000000);
487 485
488 spin_unlock_irqrestore(&par->lock, flags); 486 /* setup screen buffer for cfb_* functions */
489} 487 sbus_writel(1, &ss->wid);
490 488 sbus_writel(0x00ffffff, &ss->planemask);
491static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) 489 sbus_writel(0x310b90, &ss->rop);
492{ 490 sbus_writel(0, &par->lc_ss0_usr->addrspace);
493 /* We just use this to catch switches out of
494 * graphics mode.
495 */
496 leo_switch_from_graph(info);
497 491
498 if (var->xoffset || var->yoffset || var->vmode) 492 spin_unlock_irqrestore(&par->lock, flags);
499 return -EINVAL;
500 return 0;
501} 493}
502 494
503static void leo_init_hw(struct fb_info *info) 495static void leo_init_hw(struct fb_info *info)
@@ -542,7 +534,8 @@ static void leo_unmap_regs(struct of_device *op, struct fb_info *info,
542 of_iounmap(&op->resource[0], info->screen_base, 0x800000); 534 of_iounmap(&op->resource[0], info->screen_base, 0x800000);
543} 535}
544 536
545static int __devinit leo_probe(struct of_device *op, const struct of_device_id *match) 537static int __devinit leo_probe(struct of_device *op,
538 const struct of_device_id *match)
546{ 539{
547 struct device_node *dp = op->node; 540 struct device_node *dp = op->node;
548 struct fb_info *info; 541 struct fb_info *info;
@@ -594,8 +587,9 @@ static int __devinit leo_probe(struct of_device *op, const struct of_device_id *
594 !info->screen_base) 587 !info->screen_base)
595 goto out_unmap_regs; 588 goto out_unmap_regs;
596 589
597 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; 590 info->flags = FBINFO_DEFAULT;
598 info->fbops = &leo_ops; 591 info->fbops = &leo_ops;
592 info->pseudo_palette = par->clut_data;
599 593
600 leo_init_wids(info); 594 leo_init_wids(info);
601 leo_init_hw(info); 595 leo_init_hw(info);
@@ -649,7 +643,7 @@ static int __devexit leo_remove(struct of_device *op)
649 643
650static struct of_device_id leo_match[] = { 644static struct of_device_id leo_match[] = {
651 { 645 {
652 .name = "leo", 646 .name = "SUNW,leo",
653 }, 647 },
654 {}, 648 {},
655}; 649};