drivers/video/mbx/mbxdebugfs.c

   1 #include <linux/debugfs.h>
   2 #include <linux/slab.h>
   3
   4 #define BIG_BUFFER_SIZE (1024)
   5
   6 static char big_buffer[BIG_BUFFER_SIZE];
   7
   8 struct mbxfb_debugfs_data {
   9         struct dentry *dir;
  10         struct dentry *sysconf;
  11         struct dentry *clock;
  12         struct dentry *display;
  13         struct dentry *gsctl;
  14         struct dentry *sdram;
  15         struct dentry *misc;
  16 };
  17
  18 static int open_file_generic(struct inode *inode, struct file *file)
  19 {
  20         file->private_data = inode->u.generic_ip;
  21         return 0;
  22 }
  23
  24 static ssize_t write_file_dummy(struct file *file, const char __user *buf,
  25                                 size_t count, loff_t *ppos)
  26 {
  27         return count;
  28 }
  29
  30 static ssize_t sysconf_read_file(struct file *file, char __user *userbuf,
  31                                  size_t count, loff_t *ppos)
  32 {
  33         char * s = big_buffer;
  34
  35         s += sprintf(s, "SYSCFG = %08x\n", readl(SYSCFG));
  36         s += sprintf(s, "PFBASE = %08x\n", readl(PFBASE));
  37         s += sprintf(s, "PFCEIL = %08x\n", readl(PFCEIL));
  38         s += sprintf(s, "POLLFLAG = %08x\n", readl(POLLFLAG));
  39         s += sprintf(s, "SYSRST = %08x\n", readl(SYSRST));
  40
  41         return  simple_read_from_buffer(userbuf, count, ppos,
  42                                         big_buffer, s-big_buffer);
  43 }
  44
  45
  46 static ssize_t gsctl_read_file(struct file *file, char __user *userbuf,
  47                                size_t count, loff_t *ppos)
  48 {
  49         char * s = big_buffer;
  50
  51         s += sprintf(s, "GSCTRL = %08x\n", readl(GSCTRL));
  52         s += sprintf(s, "VSCTRL = %08x\n", readl(VSCTRL));
  53         s += sprintf(s, "GBBASE = %08x\n", readl(GBBASE));
  54         s += sprintf(s, "VBBASE = %08x\n", readl(VBBASE));
  55         s += sprintf(s, "GDRCTRL = %08x\n", readl(GDRCTRL));
  56         s += sprintf(s, "VCMSK = %08x\n", readl(VCMSK));
  57         s += sprintf(s, "GSCADR = %08x\n", readl(GSCADR));
  58         s += sprintf(s, "VSCADR = %08x\n", readl(VSCADR));
  59         s += sprintf(s, "VUBASE = %08x\n", readl(VUBASE));
  60         s += sprintf(s, "VVBASE = %08x\n", readl(VVBASE));
  61         s += sprintf(s, "GSADR = %08x\n", readl(GSADR));
  62         s += sprintf(s, "VSADR = %08x\n", readl(VSADR));
  63         s += sprintf(s, "HCCTRL = %08x\n", readl(HCCTRL));
  64         s += sprintf(s, "HCSIZE = %08x\n", readl(HCSIZE));
  65         s += sprintf(s, "HCPOS = %08x\n", readl(HCPOS));
  66         s += sprintf(s, "HCBADR = %08x\n", readl(HCBADR));
  67         s += sprintf(s, "HCCKMSK = %08x\n", readl(HCCKMSK));
  68         s += sprintf(s, "GPLUT = %08x\n", readl(GPLUT));
  69
  70         return  simple_read_from_buffer(userbuf, count, ppos,
  71                                         big_buffer, s-big_buffer);
  72 }
  73
  74 static ssize_t display_read_file(struct file *file, char __user *userbuf,
  75                                  size_t count, loff_t *ppos)
  76 {
  77         char * s = big_buffer;
  78
  79         s += sprintf(s, "DSCTRL = %08x\n", readl(DSCTRL));
  80         s += sprintf(s, "DHT01 = %08x\n", readl(DHT01));
  81         s += sprintf(s, "DHT02 = %08x\n", readl(DHT02));
  82         s += sprintf(s, "DHT03 = %08x\n", readl(DHT03));
  83         s += sprintf(s, "DVT01 = %08x\n", readl(DVT01));
  84         s += sprintf(s, "DVT02 = %08x\n", readl(DVT02));
  85         s += sprintf(s, "DVT03 = %08x\n", readl(DVT03));
  86         s += sprintf(s, "DBCOL = %08x\n", readl(DBCOL));
  87         s += sprintf(s, "BGCOLOR = %08x\n", readl(BGCOLOR));
  88         s += sprintf(s, "DINTRS = %08x\n", readl(DINTRS));
  89         s += sprintf(s, "DINTRE = %08x\n", readl(DINTRE));
  90         s += sprintf(s, "DINTRCNT = %08x\n", readl(DINTRCNT));
  91         s += sprintf(s, "DSIG = %08x\n", readl(DSIG));
  92         s += sprintf(s, "DMCTRL = %08x\n", readl(DMCTRL));
  93         s += sprintf(s, "CLIPCTRL = %08x\n", readl(CLIPCTRL));
  94         s += sprintf(s, "SPOCTRL = %08x\n", readl(SPOCTRL));
  95         s += sprintf(s, "SVCTRL = %08x\n", readl(SVCTRL));
  96         s += sprintf(s, "DLSTS = %08x\n", readl(DLSTS));
  97         s += sprintf(s, "DLLCTRL = %08x\n", readl(DLLCTRL));
  98         s += sprintf(s, "DVLNUM = %08x\n", readl(DVLNUM));
  99         s += sprintf(s, "DUCTRL = %08x\n", readl(DUCTRL));
 100         s += sprintf(s, "DVECTRL = %08x\n", readl(DVECTRL));
 101         s += sprintf(s, "DHDET = %08x\n", readl(DHDET));
 102         s += sprintf(s, "DVDET = %08x\n", readl(DVDET));
 103         s += sprintf(s, "DODMSK = %08x\n", readl(DODMSK));
 104         s += sprintf(s, "CSC01 = %08x\n", readl(CSC01));
 105         s += sprintf(s, "CSC02 = %08x\n", readl(CSC02));
 106         s += sprintf(s, "CSC03 = %08x\n", readl(CSC03));
 107         s += sprintf(s, "CSC04 = %08x\n", readl(CSC04));
 108         s += sprintf(s, "CSC05 = %08x\n", readl(CSC05));
 109
 110         return  simple_read_from_buffer(userbuf, count, ppos,
 111                                         big_buffer, s-big_buffer);
 112 }
 113
 114 static ssize_t clock_read_file(struct file *file, char __user *userbuf,
 115                                size_t count, loff_t *ppos)
 116 {
 117         char * s = big_buffer;
 118
 119         s += sprintf(s, "SYSCLKSRC = %08x\n", readl(SYSCLKSRC));
 120         s += sprintf(s, "PIXCLKSRC = %08x\n", readl(PIXCLKSRC));
 121         s += sprintf(s, "CLKSLEEP = %08x\n", readl(CLKSLEEP));
 122         s += sprintf(s, "COREPLL = %08x\n", readl(COREPLL));
 123         s += sprintf(s, "DISPPLL = %08x\n", readl(DISPPLL));
 124         s += sprintf(s, "PLLSTAT = %08x\n", readl(PLLSTAT));
 125         s += sprintf(s, "VOVRCLK = %08x\n", readl(VOVRCLK));
 126         s += sprintf(s, "PIXCLK = %08x\n", readl(PIXCLK));
 127         s += sprintf(s, "MEMCLK = %08x\n", readl(MEMCLK));
 128         s += sprintf(s, "M24CLK = %08x\n", readl(M24CLK));
 129         s += sprintf(s, "MBXCLK = %08x\n", readl(MBXCLK));
 130         s += sprintf(s, "SDCLK = %08x\n", readl(SDCLK));
 131         s += sprintf(s, "PIXCLKDIV = %08x\n", readl(PIXCLKDIV));
 132
 133         return  simple_read_from_buffer(userbuf, count, ppos,
 134                                         big_buffer, s-big_buffer);
 135 }
 136
 137 static ssize_t sdram_read_file(struct file *file, char __user *userbuf,
 138                                size_t count, loff_t *ppos)
 139 {
 140         char * s = big_buffer;
 141
 142         s += sprintf(s, "LMRST = %08x\n", readl(LMRST));
 143         s += sprintf(s, "LMCFG = %08x\n", readl(LMCFG));
 144         s += sprintf(s, "LMPWR = %08x\n", readl(LMPWR));
 145         s += sprintf(s, "LMPWRSTAT = %08x\n", readl(LMPWRSTAT));
 146         s += sprintf(s, "LMCEMR = %08x\n", readl(LMCEMR));
 147         s += sprintf(s, "LMTYPE = %08x\n", readl(LMTYPE));
 148         s += sprintf(s, "LMTIM = %08x\n", readl(LMTIM));
 149         s += sprintf(s, "LMREFRESH = %08x\n", readl(LMREFRESH));
 150         s += sprintf(s, "LMPROTMIN = %08x\n", readl(LMPROTMIN));
 151         s += sprintf(s, "LMPROTMAX = %08x\n", readl(LMPROTMAX));
 152         s += sprintf(s, "LMPROTCFG = %08x\n", readl(LMPROTCFG));
 153         s += sprintf(s, "LMPROTERR = %08x\n", readl(LMPROTERR));
 154
 155         return  simple_read_from_buffer(userbuf, count, ppos,
 156                                         big_buffer, s-big_buffer);
 157 }
 158
 159 static ssize_t misc_read_file(struct file *file, char __user *userbuf,
 160                                size_t count, loff_t *ppos)
 161 {
 162         char * s = big_buffer;
 163
 164         s += sprintf(s, "LCD_CONFIG = %08x\n", readl(LCD_CONFIG));
 165         s += sprintf(s, "ODFBPWR = %08x\n", readl(ODFBPWR));
 166         s += sprintf(s, "ODFBSTAT = %08x\n", readl(ODFBSTAT));
 167         s += sprintf(s, "ID = %08x\n", readl(ID));
 168
 169         return  simple_read_from_buffer(userbuf, count, ppos,
 170                                         big_buffer, s-big_buffer);
 171 }
 172
 173
 174 static const struct file_operations sysconf_fops = {
 175         .read = sysconf_read_file,
 176         .write = write_file_dummy,
 177         .open = open_file_generic,
 178         .llseek = default_llseek,
 179 };
 180
 181 static const struct file_operations clock_fops = {
 182         .read = clock_read_file,
 183         .write = write_file_dummy,
 184         .open = open_file_generic,
 185         .llseek = default_llseek,
 186 };
 187
 188 static const struct file_operations display_fops = {
 189         .read = display_read_file,
 190         .write = write_file_dummy,
 191         .open = open_file_generic,
 192         .llseek = default_llseek,
 193 };
 194
 195 static const struct file_operations gsctl_fops = {
 196         .read = gsctl_read_file,
 197         .write = write_file_dummy,
 198         .open = open_file_generic,
 199         .llseek = default_llseek,
 200 };
 201
 202 static const struct file_operations sdram_fops = {
 203         .read = sdram_read_file,
 204         .write = write_file_dummy,
 205         .open = open_file_generic,
 206         .llseek = default_llseek,
 207 };
 208
 209 static const struct file_operations misc_fops = {
 210         .read = misc_read_file,
 211         .write = write_file_dummy,
 212         .open = open_file_generic,
 213         .llseek = default_llseek,
 214 };
 215
 216 static void mbxfb_debugfs_init(struct fb_info *fbi)
 217 {
 218         struct mbxfb_info *mfbi = fbi->par;
 219         struct mbxfb_debugfs_data *dbg;
 220
 221         dbg = kzalloc(sizeof(struct mbxfb_debugfs_data), GFP_KERNEL);
 222         mfbi->debugfs_data = dbg;
 223
 224         dbg->dir = debugfs_create_dir("mbxfb", NULL);
 225         dbg->sysconf = debugfs_create_file("sysconf", 0444, dbg->dir,
 226                                       fbi, &sysconf_fops);
 227         dbg->clock = debugfs_create_file("clock", 0444, dbg->dir,
 228                                     fbi, &clock_fops);
 229         dbg->display = debugfs_create_file("display", 0444, dbg->dir,
 230                                       fbi, &display_fops);
 231         dbg->gsctl = debugfs_create_file("gsctl", 0444, dbg->dir,
 232                                     fbi, &gsctl_fops);
 233         dbg->sdram = debugfs_create_file("sdram", 0444, dbg->dir,
 234                                         fbi, &sdram_fops);
 235         dbg->misc = debugfs_create_file("misc", 0444, dbg->dir,
 236                                         fbi, &misc_fops);
 237 }
 238
 239 static void mbxfb_debugfs_remove(struct fb_info *fbi)
 240 {
 241         struct mbxfb_info *mfbi = fbi->par;
 242         struct mbxfb_debugfs_data *dbg = mfbi->debugfs_data;
 243
 244         debugfs_remove(dbg->misc);
 245         debugfs_remove(dbg->sdram);
 246         debugfs_remove(dbg->gsctl);
 247         debugfs_remove(dbg->display);
 248         debugfs_remove(dbg->clock);
 249         debugfs_remove(dbg->sysconf);
 250         debugfs_remove(dbg->dir);
 251 }