target/linux/s3c24xx/patches-2.6.24/1176-Subject-PATCH-Hardware-glamo-fb-cursor-some-clea.patch

   1 From b058131775abbc1ceedb5ad537014e4f9beed5ac Mon Sep 17 00:00:00 2001
   2 From: Andrzej Zaborowski <balrog@zabor.org>
   3 Date: Wed, 2 Jul 2008 22:38:46 +0100
   4 Subject: [PATCH] Subject: [PATCH] Hardware glamo-fb cursor, some clean-up.
   5
   6 ---
   7  drivers/mfd/glamo/glamo-fb.c |  105 +++++++++++++++++++++---------------------
   8  include/linux/fb.h           |    1 +
   9  2 files changed, 54 insertions(+), 52 deletions(-)
  10
  11 diff --git a/drivers/mfd/glamo/glamo-fb.c b/drivers/mfd/glamo/glamo-fb.c
  12 index 44b1947..16e9d2e 100644
  13 --- a/drivers/mfd/glamo/glamo-fb.c
  14 +++ b/drivers/mfd/glamo/glamo-fb.c
  15 @@ -117,6 +117,8 @@ static struct glamo_script glamo_regs[] = {
  16            * 01 00 0 100 0 000 01 0 0 */
  17         { GLAMO_REG_LCD_A_BASE1, 0x0000 }, /* display A base address 15:0 */
  18         { GLAMO_REG_LCD_A_BASE2, 0x0000 }, /* display A base address 22:16 */
  19 +       { GLAMO_REG_LCD_CURSOR_BASE1, 0x0000 }, /* cursor base address 15:0 */
  20 +       { GLAMO_REG_LCD_CURSOR_BASE2, 0x000f }, /* cursor base address 22:16 */
  21  };
  22
  23  static int glamofb_run_script(struct glamofb_handle *glamo,
  24 @@ -200,7 +202,6 @@ static int glamofb_check_var(struct fb_var_screeninfo *var,
  25                 printk(KERN_ERR
  26                        "Smedia driver does not [yet?] support 24/32bpp\n");
  27                 return -EINVAL;
  28 -               break;
  29         }
  30
  31         return 0;
  32 @@ -495,23 +496,19 @@ static int glamofb_setcolreg(unsigned regno,
  33         return 0;
  34  }
  35
  36 -#ifdef NOT_CURRENTLY_USED
  37 +#ifdef CONFIG_MFD_GLAMO_HWACCEL
  38  static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
  39  {
  40         struct glamofb_handle *glamo = info->par;
  41 -       u_int16_t reg;
  42 +       unsigned long flags;
  43
  44         if (cursor->image.depth > 2)
  45                 return -EINVAL;
  46
  47 -       reg = reg_read(glamo, GLAMO_REG_LCD_MODE1);
  48 +       spin_lock_irqsave(&glamo->lock_cmd, flags);
  49
  50 -       if (cursor->enable)
  51 -               reg_write(glamo, GLAMO_REG_LCD_MODE1,
  52 -                         reg | GLAMO_LCD_MODE1_CURSOR_EN);
  53 -       else
  54 -               reg_write(glamo, GLAMO_REG_LCD_MODE1,
  55 -                         reg & ~GLAMO_LCD_MODE1_CURSOR_EN);
  56 +       reg_set_bit_mask(glamo, GLAMO_REG_LCD_MODE1,
  57 +                       GLAMO_LCD_MODE1_CURSOR_EN, 0);
  58
  59         if (cursor->set & FB_CUR_SETPOS) {
  60                 reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_POS,
  61 @@ -521,29 +518,36 @@ static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
  62         }
  63
  64         if (cursor->set & FB_CUR_SETCMAP) {
  65 -               /* FIXME */
  66 +               uint16_t fg = cursor->image.fg_color;
  67 +               uint16_t bg = cursor->image.bg_color;
  68 +
  69 +               reg_write(glamo, GLAMO_REG_LCD_CURSOR_FG_COLOR, fg);
  70 +               reg_write(glamo, GLAMO_REG_LCD_CURSOR_BG_COLOR, bg);
  71 +               reg_write(glamo, GLAMO_REG_LCD_CURSOR_DST_COLOR, bg);
  72         }
  73
  74 -       if (cursor->set & FB_CUR_SETSIZE ||
  75 -           cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE)) {
  76 -               int x, y, op;
  77 +       if (cursor->set & FB_CUR_SETHOT)
  78 +               reg_write(glamo, GLAMO_REG_LCD_CURSOR_PRESET,
  79 +                               (cursor->hot.x << 8) | cursor->hot.y);
  80 +
  81 +       if ((cursor->set & FB_CUR_SETSIZE) ||
  82 +           (cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE))) {
  83 +               int x, y, pitch;
  84                 const unsigned char *pcol = cursor->image.data;
  85                 const unsigned char *pmsk = cursor->mask;
  86                 void __iomem *dst = glamo->cursor_addr;
  87                 unsigned char dcol = 0;
  88                 unsigned char dmsk = 0;
  89 +               unsigned char byte = 0;
  90
  91 +               pitch = (cursor->image.width + 3) >> 2;
  92                 reg_write(glamo, GLAMO_REG_LCD_CURSOR_X_SIZE,
  93                           cursor->image.width);
  94                 reg_write(glamo, GLAMO_REG_LCD_CURSOR_PITCH,
  95 -                         cursor->image.width * 2);
  96 +                         pitch);
  97                 reg_write(glamo, GLAMO_REG_LCD_CURSOR_Y_SIZE,
  98                           cursor->image.height);
  99
 100 -               for (op = 0; op < (cursor->image.width *
 101 -                                  cursor->image.height * 2)/8; op += 4)
 102 -                       writel(0x0, dst + op);
 103 -
 104                 for (y = 0; y < cursor->image.height; y++) {
 105                         for (x = 0; x < cursor->image.width; x++) {
 106                                 if ((x % 8) == 0) {
 107 @@ -558,14 +562,27 @@ static int glamofb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 108                                         unsigned int op;
 109
 110                                         op = (dcol & 1) ? 1 : 3;
 111 -                                       op <<= ((x % 4) * 2);
 112 +                                       byte |= op << ((x % 4) * 2);
 113 +                               }
 114
 115 -                                       op |= readb(dst + (x / 4));
 116 -                                       writeb(op, dst + (x / 4));
 117 +                               if ((x % 4) == 0) {
 118 +                                       writeb(byte, dst + x / 4);
 119 +                                       byte = 0;
 120                                 }
 121                         }
 122 +
 123 +                       dst += pitch;
 124                 }
 125         }
 126 +
 127 +       if (cursor->enable)
 128 +               reg_set_bit_mask(glamo, GLAMO_REG_LCD_MODE1,
 129 +                               GLAMO_LCD_MODE1_CURSOR_EN,
 130 +                               GLAMO_LCD_MODE1_CURSOR_EN);
 131 +
 132 +       spin_unlock_irqrestore(&glamo->lock_cmd, flags);
 133 +
 134 +       return 0;
 135  }
 136  #endif
 137
 138 @@ -576,15 +593,14 @@ static inline int glamofb_cmdq_empty(struct glamofb_handle *gfb)
 139  }
 140
 141  /* call holding gfb->lock_cmd  when locking, until you unlock */
 142 -
 143  int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 144  {
 145         int timeout = 200000;
 146
 147 -/*     dev_dbg(gfb->dev, "glamofb_cmd_mode(gfb=%p, on=%d)\n", gfb, on); */
 148 +       dev_dbg(gfb->dev, "glamofb_cmd_mode(gfb=%p, on=%d)\n", gfb, on);
 149         if (on) {
 150 -/*             dev_dbg(gfb->dev, "%s: waiting for cmdq empty: ",
 151 -                       __FUNCTION__); */
 152 +               dev_dbg(gfb->dev, "%s: waiting for cmdq empty: ",
 153 +                       __FUNCTION__);
 154                 while ((!glamofb_cmdq_empty(gfb)) && (timeout--))
 155                         yield();
 156                 if (timeout < 0) {
 157 @@ -593,7 +609,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 158                                        "*************\n");
 159                         return -EIO;
 160                 }
 161 -/*             dev_dbg(gfb->dev, "empty!\n"); */
 162 +               dev_dbg(gfb->dev, "empty!\n");
 163
 164                 /* display the entire frame then switch to command */
 165                 reg_write(gfb, GLAMO_REG_LCD_COMMAND1,
 166 @@ -601,7 +617,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 167                           GLAMO_LCD_CMD_DATA_FIRE_VSYNC);
 168
 169                 /* wait until LCD is idle */
 170 -/*             dev_dbg(gfb->dev, "waiting for LCD idle: "); */
 171 +               dev_dbg(gfb->dev, "waiting for LCD idle: ");
 172                 timeout = 200000;
 173                 while ((!reg_read(gfb, GLAMO_REG_LCD_STATUS2) & (1 << 12)) &&
 174                       (timeout--))
 175 @@ -612,7 +628,7 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 176                                        "*************\n");
 177                         return -EIO;
 178                 }
 179 -/*             dev_dbg(gfb->dev, "idle!\n"); */
 180 +               dev_dbg(gfb->dev, "idle!\n");
 181
 182                 mdelay(100);
 183         } else {
 184 @@ -635,8 +651,7 @@ int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
 185  {
 186         int timeout = 200000;
 187
 188 -/*     dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n",
 189 -               __FUNCTION__); */
 190 +       dev_dbg(gfb->dev, "%s: waiting for cmdq empty\n", __FUNCTION__);
 191         while ((!glamofb_cmdq_empty(gfb)) && (timeout--))
 192                 yield();
 193         if (timeout < 0) {
 194 @@ -645,7 +660,7 @@ int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
 195                                 "*************\n");
 196                 return 1;
 197         }
 198 -/*     dev_dbg(gfb->dev, "idle, writing 0x%04x\n", val); */
 199 +       dev_dbg(gfb->dev, "idle, writing 0x%04x\n", val);
 200
 201         reg_write(gfb, GLAMO_REG_LCD_COMMAND1, val);
 202
 203 @@ -659,7 +674,9 @@ static struct fb_ops glamofb_ops = {
 204         .fb_set_par     = glamofb_set_par,
 205         .fb_blank       = glamofb_blank,
 206         .fb_setcolreg   = glamofb_setcolreg,
 207 -       //.fb_cursor    = glamofb_cursor,
 208 +#ifdef CONFIG_MFD_GLAMO_HWACCEL
 209 +       .fb_cursor      = glamofb_cursor,
 210 +#endif
 211         .fb_fillrect    = cfb_fillrect,
 212         .fb_copyarea    = cfb_copyarea,
 213         .fb_imageblit   = cfb_imageblit,
 214 @@ -743,6 +760,7 @@ static int __init glamofb_probe(struct platform_device *pdev)
 215                 dev_err(&pdev->dev, "failed to ioremap() vram memory\n");
 216                 goto out_release_fb;
 217         }
 218 +       glamofb->cursor_addr = fbinfo->screen_base + 0xf0000;
 219
 220         platform_set_drvdata(pdev, fbinfo);
 221
 222 @@ -754,13 +772,13 @@ static int __init glamofb_probe(struct platform_device *pdev)
 223         fbinfo->fix.xpanstep = 0;
 224         fbinfo->fix.ypanstep = 0;
 225         fbinfo->fix.ywrapstep = 0;
 226 -       fbinfo->fix.accel = FB_ACCEL_NONE; /* FIXME */
 227 +       fbinfo->fix.accel = FB_ACCEL_GLAMO;
 228
 229         fbinfo->var.nonstd = 0;
 230         fbinfo->var.activate = FB_ACTIVATE_NOW;
 231         fbinfo->var.height = mach_info->height;
 232         fbinfo->var.width = mach_info->width;
 233 -       fbinfo->var.accel_flags = 0;
 234 +       fbinfo->var.accel_flags = 0;    /* FIXME */
 235         fbinfo->var.vmode = FB_VMODE_NONINTERLACED;
 236
 237         fbinfo->fbops = &glamofb_ops;
 238 @@ -832,26 +850,9 @@ static int glamofb_remove(struct platform_device *pdev)
 239         return 0;
 240  }
 241
 242 -#ifdef CONFIG_PM
 243 -static int glamofb_suspend(struct platform_device *pdev, pm_message_t state)
 244 -{
 245 -       return 0;
 246 -}
 247 -
 248 -static int glamofb_resume(struct platform_device *pdev)
 249 -{
 250 -       return 0;
 251 -}
 252 -#else
 253 -#define glamofb_suspend NULL
 254 -#define glamofb_resume  NULL
 255 -#endif
 256 -
 257  static struct platform_driver glamofb_driver = {
 258         .probe          = glamofb_probe,
 259         .remove         = glamofb_remove,
 260 -       .suspend        = glamofb_suspend,
 261 -       .resume         = glamofb_resume,
 262         .driver         = {
 263                 .name   = "glamo-fb",
 264                 .owner  = THIS_MODULE,
 265 diff --git a/include/linux/fb.h b/include/linux/fb.h
 266 index 58c57a3..c114328 100644
 267 --- a/include/linux/fb.h
 268 +++ b/include/linux/fb.h
 269 @@ -120,6 +120,7 @@ struct dentry;
 270  #define FB_ACCEL_XGI_VOLARI_V  47      /* XGI Volari V3XT, V5, V8      */
 271  #define FB_ACCEL_XGI_VOLARI_Z  48      /* XGI Volari Z7                */
 272  #define FB_ACCEL_OMAP1610      49      /* TI OMAP16xx                  */
 273 +#define FB_ACCEL_GLAMO         50      /* SMedia Glamo                 */
 274  #define FB_ACCEL_NEOMAGIC_NM2070 90    /* NeoMagic NM2070              */
 275  #define FB_ACCEL_NEOMAGIC_NM2090 91    /* NeoMagic NM2090              */
 276  #define FB_ACCEL_NEOMAGIC_NM2093 92    /* NeoMagic NM2093              */
 277 --
 278 1.5.6.5
 279