aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/s3c24xx/patches/0151-Subject-PATCH-Hardware-glamo-fb-cursor-some-clea.patch
blob: 2ba8c2b2bdd2643fd327e41ef477995024c39b4e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
From 824fc22a0aaacf942eb3b3dfa6aad32c7285669f Mon Sep 17 00:00:00 2001
From: Andrzej Zaborowski <balrog@zabor.org>
Date: Fri, 25 Jul 2008 23:06:11 +0100
Subject: [PATCH] Subject: [PATCH] Hardware glamo-fb cursor, some clean-up.

---
 drivers/mfd/glamo/glamo-fb.c |  105 +++++++++++++++++++++--------------------
 include/linux/fb.h           |    1 +
 2 files changed, 55 insertions(+), 51 deletions(-)

diff --git a/drivers/mfd/glamo/glamo-fb.c b/drivers/mfd/glamo/glamo-fb.c
index edc6d9c..30cdb38 100644
--- a/drivers/mfd/glamo/glamo-fb.c
+++ b/drivers/mfd/glamo/glamo-fb.c
@@ -117,6 +117,8 @@ static struct glamo_script glamo_regs[] = {
 	   * 01 00 0 100 0 000 01 0 0 */
 	{ GLAMO_REG_LCD_A_BASE1, 0x0000 }, /* display A base address 15:0 */
 	{ GLAMO_REG_LCD_A_BASE2, 0x0000 }, /* display A base address 22:16 */
+	{ GLAMO_REG_LCD_CURSOR_BASE1, 0x0000 }, /* cursor base address 15:0 */
+	{ GLAMO_REG_LCD_CURSOR_BASE2, 0x000f }, /* cursor base address 22:16 */
 };
 
 static int glamofb_run_script(struct glamofb_handle *glamo,
@@ -200,7 +202,6 @@ static int glamofb_check_var(struct fb_var_screeninfo *var,
 		printk(KERN_ERR
 		       "Smedia driver does not [yet?] support 24/32bpp\n");
 		return -EINVAL;
-		break;
 	}
 
 	return 0;
@@ -497,22 +498,19 @@ static int glamofb_setcolreg(unsigned regno,
 	return 0;
 }
 
+#ifdef CONFIG_MFD_GLAMO_HWACCEL
 static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 {
 	struct glamofb_handle *glamo = info->par;
-	u_int16_t reg;
+	unsigned long flags;
 
 	if (cursor->image.depth > 2)
 		return -EINVAL;
 
-	reg = reg_read(glamo, GLAMO_REG_LCD_MODE1);
+	spin_lock_irqsave(&glamo->lock_cmd, flags);
 
-	if (cursor->enable)
-		reg_write(glamo, GLAMO_REG_LCD_MODE1,
-			  reg | GLAMO_LCD_MODE1_CURSOR_EN);
-	else
-		reg_write(glamo, GLAMO_REG_LCD_MODE1,
-			  reg & ~GLAMO_LCD_MODE1_CURSOR_EN);
+	reg_set_bit_mask(glamo, GLAMO_REG_LCD_MODE1,
+			GLAMO_LCD_MODE1_CURSOR_EN, 0);
 
 	if (cursor->set & FB_CUR_SETPOS) {
 		reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_POS,
@@ -522,29 +520,36 @@ static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 	}
 
 	if (cursor->set & FB_CUR_SETCMAP) {
-		/* FIXME */
+		uint16_t fg = cursor->image.fg_color;
+		uint16_t bg = cursor->image.bg_color;
+
+		reg_write(glamo, GLAMO_REG_LCD_CURSOR_FG_COLOR, fg);
+		reg_write(glamo, GLAMO_REG_LCD_CURSOR_BG_COLOR, bg);
+		reg_write(glamo, GLAMO_REG_LCD_CURSOR_DST_COLOR, bg);
 	}
 
-	if (cursor->set & FB_CUR_SETSIZE ||
-	    cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE)) {
-		int x, y, op;
+	if (cursor->set & FB_CUR_SETHOT)
+		reg_write(glamo, GLAMO_REG_LCD_CURSOR_PRESET,
+				(cursor->hot.x << 8) | cursor->hot.y);
+
+	if ((cursor->set & FB_CUR_SETSIZE) ||
+	    (cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE))) {
+		int x, y, pitch;
 		const unsigned char *pcol = cursor->image.data;
 		const unsigned char *pmsk = cursor->mask;
 		void __iomem *dst = glamo->cursor_addr;
 		unsigned char dcol = 0;
 		unsigned char dmsk = 0;
+		unsigned char byte = 0;
 
+		pitch = (cursor->image.width + 3) >> 2;
 		reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_SIZE,
 			  cursor->image.width);
 		reg_write(glamo, GLAMO_REG_LCD_CURSOR_PITCH,
-			  cursor->image.width * 2);
+			  pitch);
 		reg_write(glamo, GLAMO_REG_LCD_CURSOR_Y_SIZE,
 			  cursor->image.height);
 
-		for (op = 0; op < (cursor->image.width *
-				   cursor->image.height * 2)/8; op += 4)
-			writel(0x0, dst + op);
-
 		for (y = 0; y < cursor->image.height; y++) {
 			for (x = 0; x < cursor->image.width; x++) {
 				if ((x % 8) == 0) {
@@ -559,15 +564,29 @@ static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 					unsigned int op;
 
 					op = (dcol & 1) ? 1 : 3;
-					op <<= ((x % 4) * 2);
+					byte |= op << ((x % 4) * 2);
+				}
 
-					op |= readb(dst + (x / 4));
-					writeb(op, dst + (x / 4));
+				if ((x % 4) == 0) {
+					writeb(byte, dst + x / 4);
+					byte = 0;
 				}
 			}
+
+			dst += pitch;
 		}
 	}
+
+	if (cursor->enable)
+		reg_set_bit_mask(glamo, GLAMO_REG_LCD_MODE1,
+				GLAMO_LCD_MODE1_CURSOR_EN,
+				GLAMO_LCD_MODE1_CURSOR_EN);
+
+	spin_unlock_irqrestore(&glamo->lock_cmd, flags);
+
+	return 0;
 }
+#endif
 
 static inline int glamofb_cmdq_empty(struct glamofb_handle *gfb)
 {
@@ -576,15 +595,14 @@ static inline int glamofb_cmdq_empty(struct glamofb_handle *gfb)
 }
 
 /* call holding gfb->lock_cmd  when locking, until you unlock */
-
 int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 {
 	int timeout = 200000;
 
-/*	dev_dbg(gfb->dev, "glamofb_cmd_mode(gfb=%p, on=%d)\n", gfb, on); */
+	dev_dbg(gfb->dev, "glamofb_cmd_mode(gfb=%p, on=%d)\n", gfb, on);
 	if (on) {
-/*		dev_dbg(gfb->dev, "%s: waiting for cmdq empty: ",
-			__FUNCTION__); */
+		dev_dbg(gfb->dev, "%s: waiting for cmdq empty: ",
+			__FUNCTION__);
 		while ((!glamofb_cmdq_empty(gfb)) && (timeout--))
 			yield();
 		if (timeout < 0) {
@@ -593,7 +611,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 				       "*************\n");
 			return -EIO;
 		}
-/*		dev_dbg(gfb->dev, "empty!\n"); */
+		dev_dbg(gfb->dev, "empty!\n");
 
 		/* display the entire frame then switch to command */
 		reg_write(gfb, GLAMO_REG_LCD_COMMAND1,
@@ -601,7 +619,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 			  GLAMO_LCD_CMD_DATA_FIRE_VSYNC);
 
 		/* wait until LCD is idle */
-/*		dev_dbg(gfb->dev, "waiting for LCD idle: "); */
+		dev_dbg(gfb->dev, "waiting for LCD idle: ");
 		timeout = 200000;
 		while ((!reg_read(gfb, GLAMO_REG_LCD_STATUS2) & (1 << 12)) &&
 		      (timeout--))
@@ -612,7 +630,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 				       "*************\n");
 			return -EIO;
 		}
-/*		dev_dbg(gfb->dev, "idle!\n"); */
+		dev_dbg(gfb->dev, "idle!\n");
 
 		mdelay(100);
 	} else {
@@ -635,8 +653,7 @@ int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
 {
 	int timeout = 200000;
 
-/*	dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n",
-		__FUNCTION__); */
+	dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n", __FUNCTION__);
 	while ((!glamofb_cmdq_empty(gfb)) && (timeout--))
 		yield();
 	if (timeout < 0) {
@@ -645,7 +662,7 @@ int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
 				"*************\n");
 		return 1;
 	}
-/*	dev_dbg(gfb->dev, "idle, writing 0x%04x\n", val); */
+	dev_dbg(gfb->dev, "idle, writing 0x%04x\n", val);
 
 	reg_write(gfb, GLAMO_REG_LCD_COMMAND1, val);
 
@@ -659,7 +676,9 @@ static struct fb_ops glamofb_ops = {
 	.fb_set_par	= glamofb_set_par,
 	.fb_blank	= glamofb_blank,
 	.fb_setcolreg	= glamofb_setcolreg,
-	//.fb_cursor	= glamofb_cursor,
+#ifdef CONFIG_MFD_GLAMO_HWACCEL
+	.fb_cursor	= glamofb_cursor,
+#endif
 	.fb_fillrect	= cfb_fillrect,
 	.fb_copyarea	= cfb_copyarea,
 	.fb_imageblit	= cfb_imageblit,
@@ -743,6 +762,7 @@ static int __init glamofb_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to ioremap() vram memory\n");
 		goto out_release_fb;
 	}
+	glamofb->cursor_addr = fbinfo->screen_base + 0xf0000;
 
 	platform_set_drvdata(pdev, fbinfo);
 
@@ -754,13 +774,13 @@ static int __init glamofb_probe(struct platform_device *pdev)
 	fbinfo->fix.xpanstep = 0;
 	fbinfo->fix.ypanstep = 0;
 	fbinfo->fix.ywrapstep = 0;
-	fbinfo->fix.accel = FB_ACCEL_NONE; /* FIXME */
+	fbinfo->fix.accel = FB_ACCEL_GLAMO;
 
 	fbinfo->var.nonstd = 0;
 	fbinfo->var.activate = FB_ACTIVATE_NOW;
 	fbinfo->var.height = mach_info->height;
 	fbinfo->var.width = mach_info->width;
-	fbinfo->var.accel_flags = 0;
+	fbinfo->var.accel_flags = 0;	/* FIXME */
 	fbinfo->var.vmode = FB_VMODE_NONINTERLACED;
 
 	fbinfo->fbops = &glamofb_ops;
@@ -833,26 +853,9 @@ static int glamofb_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int glamofb_suspend(struct platform_device *pdev, pm_message_t state)
-{
-	return 0;
-}
-
-static int glamofb_resume(struct platform_device *pdev)
-{
-	return 0;
-}
-#else
-#define glamofb_suspend NULL
-#define glamofb_resume  NULL
-#endif
-
 static struct platform_driver glamofb_driver = {
 	.probe		= glamofb_probe,
 	.remove		= glamofb_remove,
-	.suspend	= glamofb_suspend,
-	.resume		= glamofb_resume,
 	.driver		= {
 		.name	= "glamo-fb",
 		.owner	= THIS_MODULE,
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 72295b0..1df1225 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -120,6 +120,7 @@ struct dentry;
 #define FB_ACCEL_XGI_VOLARI_V	47	/* XGI Volari V3XT, V5, V8      */
 #define FB_ACCEL_XGI_VOLARI_Z	48	/* XGI Volari Z7                */
 #define FB_ACCEL_OMAP1610	49	/* TI OMAP16xx                  */
+#define FB_ACCEL_GLAMO		50	/* SMedia Glamo                 */
 #define FB_ACCEL_NEOMAGIC_NM2070 90	/* NeoMagic NM2070              */
 #define FB_ACCEL_NEOMAGIC_NM2090 91	/* NeoMagic NM2090              */
 #define FB_ACCEL_NEOMAGIC_NM2093 92	/* NeoMagic NM2093              */
-- 
1.5.6.3