drivers/video/fbdev/mbx/mbxdebugfs.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/debugfs.h>
   3 #include <linux/slab.h>
   4
   5 #define BIG_BUFFER_SIZE (1024)
   6
   7 static char big_buffer[BIG_BUFFER_SIZE];
   8
   9 struct mbxfb_debugfs_data {
  10         struct dentry *dir;
  11         struct dentry *sysconf;
  12         struct dentry *clock;
  13         struct dentry *display;
  14         struct dentry *gsctl;
  15         struct dentry *sdram;
  16         struct dentry *misc;
  17 };
  18
  19 static ssize_t write_file_dummy(struct file *file, const char __user *buf,
  20                                 size_t count, loff_t *ppos)
  21 {
  22         return count;
  23 }
  24
  25 static ssize_t sysconf_read_file(struct file *file, char __user *userbuf,
  26                                  size_t count, loff_t *ppos)
  27 {
  28         char * s = big_buffer;
  29
  30         s += sprintf(s, "SYSCFG = %08x\n", readl(SYSCFG));
  31         s += sprintf(s, "PFBASE = %08x\n", readl(PFBASE));
  32         s += sprintf(s, "PFCEIL = %08x\n", readl(PFCEIL));
  33         s += sprintf(s, "POLLFLAG = %08x\n", readl(POLLFLAG));
  34         s += sprintf(s, "SYSRST = %08x\n", readl(SYSRST));
  35
  36         return  simple_read_from_buffer(userbuf, count, ppos,
  37                                         big_buffer, s-big_buffer);
  38 }
  39
  40
  41 static ssize_t gsctl_read_file(struct file *file, char __user *userbuf,
  42                                size_t count, loff_t *ppos)
  43 {
  44         char * s = big_buffer;
  45
  46         s += sprintf(s, "GSCTRL = %08x\n", readl(GSCTRL));
  47         s += sprintf(s, "VSCTRL = %08x\n", readl(VSCTRL));
  48         s += sprintf(s, "GBBASE = %08x\n", readl(GBBASE));
  49         s += sprintf(s, "VBBASE = %08x\n", readl(VBBASE));
  50         s += sprintf(s, "GDRCTRL = %08x\n", readl(GDRCTRL));
  51         s += sprintf(s, "VCMSK = %08x\n", readl(VCMSK));
  52         s += sprintf(s, "GSCADR = %08x\n", readl(GSCADR));
  53         s += sprintf(s, "VSCADR = %08x\n", readl(VSCADR));
  54         s += sprintf(s, "VUBASE = %08x\n", readl(VUBASE));
  55         s += sprintf(s, "VVBASE = %08x\n", readl(VVBASE));
  56         s += sprintf(s, "GSADR = %08x\n", readl(GSADR));
  57         s += sprintf(s, "VSADR = %08x\n", readl(VSADR));
  58         s += sprintf(s, "HCCTRL = %08x\n", readl(HCCTRL));
  59         s += sprintf(s, "HCSIZE = %08x\n", readl(HCSIZE));
  60         s += sprintf(s, "HCPOS = %08x\n", readl(HCPOS));
  61         s += sprintf(s, "HCBADR = %08x\n", readl(HCBADR));
  62         s += sprintf(s, "HCCKMSK = %08x\n", readl(HCCKMSK));
  63         s += sprintf(s, "GPLUT = %08x\n", readl(GPLUT));
  64
  65         return  simple_read_from_buffer(userbuf, count, ppos,
  66                                         big_buffer, s-big_buffer);
  67 }
  68
  69 static ssize_t display_read_file(struct file *file, char __user *userbuf,
  70                                  size_t count, loff_t *ppos)
  71 {
  72         char * s = big_buffer;
  73
  74         s += sprintf(s, "DSCTRL = %08x\n", readl(DSCTRL));
  75         s += sprintf(s, "DHT01 = %08x\n", readl(DHT01));
  76         s += sprintf(s, "DHT02 = %08x\n", readl(DHT02));
  77         s += sprintf(s, "DHT03 = %08x\n", readl(DHT03));
  78         s += sprintf(s, "DVT01 = %08x\n", readl(DVT01));
  79         s += sprintf(s, "DVT02 = %08x\n", readl(DVT02));
  80         s += sprintf(s, "DVT03 = %08x\n", readl(DVT03));
  81         s += sprintf(s, "DBCOL = %08x\n", readl(DBCOL));
  82         s += sprintf(s, "BGCOLOR = %08x\n", readl(BGCOLOR));
  83         s += sprintf(s, "DINTRS = %08x\n", readl(DINTRS));
  84         s += sprintf(s, "DINTRE = %08x\n", readl(DINTRE));
  85         s += sprintf(s, "DINTRCNT = %08x\n", readl(DINTRCNT));
  86         s += sprintf(s, "DSIG = %08x\n", readl(DSIG));
  87         s += sprintf(s, "DMCTRL = %08x\n", readl(DMCTRL));
  88         s += sprintf(s, "CLIPCTRL = %08x\n", readl(CLIPCTRL));
  89         s += sprintf(s, "SPOCTRL = %08x\n", readl(SPOCTRL));
  90         s += sprintf(s, "SVCTRL = %08x\n", readl(SVCTRL));
  91         s += sprintf(s, "DLSTS = %08x\n", readl(DLSTS));
  92         s += sprintf(s, "DLLCTRL = %08x\n", readl(DLLCTRL));
  93         s += sprintf(s, "DVLNUM = %08x\n", readl(DVLNUM));
  94         s += sprintf(s, "DUCTRL = %08x\n", readl(DUCTRL));
  95         s += sprintf(s, "DVECTRL = %08x\n", readl(DVECTRL));
  96         s += sprintf(s, "DHDET = %08x\n", readl(DHDET));
  97         s += sprintf(s, "DVDET = %08x\n", readl(DVDET));
  98         s += sprintf(s, "DODMSK = %08x\n", readl(DODMSK));
  99         s += sprintf(s, "CSC01 = %08x\n", readl(CSC01));
 100         s += sprintf(s, "CSC02 = %08x\n", readl(CSC02));
 101         s += sprintf(s, "CSC03 = %08x\n", readl(CSC03));
 102         s += sprintf(s, "CSC04 = %08x\n", readl(CSC04));
 103         s += sprintf(s, "CSC05 = %08x\n", readl(CSC05));
 104
 105         return  simple_read_from_buffer(userbuf, count, ppos,
 106                                         big_buffer, s-big_buffer);
 107 }
 108
 109 static ssize_t clock_read_file(struct file *file, char __user *userbuf,
 110                                size_t count, loff_t *ppos)
 111 {
 112         char * s = big_buffer;
 113
 114         s += sprintf(s, "SYSCLKSRC = %08x\n", readl(SYSCLKSRC));
 115         s += sprintf(s, "PIXCLKSRC = %08x\n", readl(PIXCLKSRC));
 116         s += sprintf(s, "CLKSLEEP = %08x\n", readl(CLKSLEEP));
 117         s += sprintf(s, "COREPLL = %08x\n", readl(COREPLL));
 118         s += sprintf(s, "DISPPLL = %08x\n", readl(DISPPLL));
 119         s += sprintf(s, "PLLSTAT = %08x\n", readl(PLLSTAT));
 120         s += sprintf(s, "VOVRCLK = %08x\n", readl(VOVRCLK));
 121         s += sprintf(s, "PIXCLK = %08x\n", readl(PIXCLK));
 122         s += sprintf(s, "MEMCLK = %08x\n", readl(MEMCLK));
 123         s += sprintf(s, "M24CLK = %08x\n", readl(M24CLK));
 124         s += sprintf(s, "MBXCLK = %08x\n", readl(MBXCLK));
 125         s += sprintf(s, "SDCLK = %08x\n", readl(SDCLK));
 126         s += sprintf(s, "PIXCLKDIV = %08x\n", readl(PIXCLKDIV));
 127
 128         return  simple_read_from_buffer(userbuf, count, ppos,
 129                                         big_buffer, s-big_buffer);
 130 }
 131
 132 static ssize_t sdram_read_file(struct file *file, char __user *userbuf,
 133                                size_t count, loff_t *ppos)
 134 {
 135         char * s = big_buffer;
 136
 137         s += sprintf(s, "LMRST = %08x\n", readl(LMRST));
 138         s += sprintf(s, "LMCFG = %08x\n", readl(LMCFG));
 139         s += sprintf(s, "LMPWR = %08x\n", readl(LMPWR));
 140         s += sprintf(s, "LMPWRSTAT = %08x\n", readl(LMPWRSTAT));
 141         s += sprintf(s, "LMCEMR = %08x\n", readl(LMCEMR));
 142         s += sprintf(s, "LMTYPE = %08x\n", readl(LMTYPE));
 143         s += sprintf(s, "LMTIM = %08x\n", readl(LMTIM));
 144         s += sprintf(s, "LMREFRESH = %08x\n", readl(LMREFRESH));
 145         s += sprintf(s, "LMPROTMIN = %08x\n", readl(LMPROTMIN));
 146         s += sprintf(s, "LMPROTMAX = %08x\n", readl(LMPROTMAX));
 147         s += sprintf(s, "LMPROTCFG = %08x\n", readl(LMPROTCFG));
 148         s += sprintf(s, "LMPROTERR = %08x\n", readl(LMPROTERR));
 149
 150         return  simple_read_from_buffer(userbuf, count, ppos,
 151                                         big_buffer, s-big_buffer);
 152 }
 153
 154 static ssize_t misc_read_file(struct file *file, char __user *userbuf,
 155                                size_t count, loff_t *ppos)
 156 {
 157         char * s = big_buffer;
 158
 159         s += sprintf(s, "LCD_CONFIG = %08x\n", readl(LCD_CONFIG));
 160         s += sprintf(s, "ODFBPWR = %08x\n", readl(ODFBPWR));
 161         s += sprintf(s, "ODFBSTAT = %08x\n", readl(ODFBSTAT));
 162         s += sprintf(s, "ID = %08x\n", readl(ID));
 163
 164         return  simple_read_from_buffer(userbuf, count, ppos,
 165                                         big_buffer, s-big_buffer);
 166 }
 167
 168
 169 static const struct file_operations sysconf_fops = {
 170         .read = sysconf_read_file,
 171         .write = write_file_dummy,
 172         .open = simple_open,
 173         .llseek = default_llseek,
 174 };
 175
 176 static const struct file_operations clock_fops = {
 177         .read = clock_read_file,
 178         .write = write_file_dummy,
 179         .open = simple_open,
 180         .llseek = default_llseek,
 181 };
 182
 183 static const struct file_operations display_fops = {
 184         .read = display_read_file,
 185         .write = write_file_dummy,
 186         .open = simple_open,
 187         .llseek = default_llseek,
 188 };
 189
 190 static const struct file_operations gsctl_fops = {
 191         .read = gsctl_read_file,
 192         .write = write_file_dummy,
 193         .open = simple_open,
 194         .llseek = default_llseek,
 195 };
 196
 197 static const struct file_operations sdram_fops = {
 198         .read = sdram_read_file,
 199         .write = write_file_dummy,
 200         .open = simple_open,
 201         .llseek = default_llseek,
 202 };
 203
 204 static const struct file_operations misc_fops = {
 205         .read = misc_read_file,
 206         .write = write_file_dummy,
 207         .open = simple_open,
 208         .llseek = default_llseek,
 209 };
 210
 211 static void mbxfb_debugfs_init(struct fb_info *fbi)
 212 {
 213         struct mbxfb_info *mfbi = fbi->par;
 214         struct mbxfb_debugfs_data *dbg;
 215
 216         dbg = kzalloc(sizeof(struct mbxfb_debugfs_data), GFP_KERNEL);
 217         mfbi->debugfs_data = dbg;
 218
 219         dbg->dir = debugfs_create_dir("mbxfb", NULL);
 220         dbg->sysconf = debugfs_create_file("sysconf", 0444, dbg->dir,
 221                                       fbi, &sysconf_fops);
 222         dbg->clock = debugfs_create_file("clock", 0444, dbg->dir,
 223                                     fbi, &clock_fops);
 224         dbg->display = debugfs_create_file("display", 0444, dbg->dir,
 225                                       fbi, &display_fops);
 226         dbg->gsctl = debugfs_create_file("gsctl", 0444, dbg->dir,
 227                                     fbi, &gsctl_fops);
 228         dbg->sdram = debugfs_create_file("sdram", 0444, dbg->dir,
 229                                         fbi, &sdram_fops);
 230         dbg->misc = debugfs_create_file("misc", 0444, dbg->dir,
 231                                         fbi, &misc_fops);
 232 }
 233
 234 static void mbxfb_debugfs_remove(struct fb_info *fbi)
 235 {
 236         struct mbxfb_info *mfbi = fbi->par;
 237         struct mbxfb_debugfs_data *dbg = mfbi->debugfs_data;
 238
 239         debugfs_remove(dbg->misc);
 240         debugfs_remove(dbg->sdram);
 241         debugfs_remove(dbg->gsctl);
 242         debugfs_remove(dbg->display);
 243         debugfs_remove(dbg->clock);
 244         debugfs_remove(dbg->sysconf);
 245         debugfs_remove(dbg->dir);
 246 }