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linux/drivers/video/mbx/mbxdebugfs.c
Raphael Assenat 128806c3b3 [PATCH] mbxfb: add more registers to debugfs 
This patch fixes debugfs for mbxfb and adds some missing registers.

The way registers were read was out of sync with the rest of the driver (direct
access instead of using readl())

sdram controller registers are now accessible in the sdram/ subdirectory and
some other registers are grouped in the misc/ subdirectory.

Signed-off-by: Raphael Assenat <raph@8d.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:29:06 -08:00

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#include <linux/debugfs.h>
#define BIG_BUFFER_SIZE (1024)
static char big_buffer[BIG_BUFFER_SIZE];
struct mbxfb_debugfs_data {
struct dentry *dir;
struct dentry *sysconf;
struct dentry *clock;
struct dentry *display;
struct dentry *gsctl;
struct dentry *sdram;
struct dentry *misc;
};
static int open_file_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->u.generic_ip;
return 0;
}
static ssize_t write_file_dummy(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
return count;
}
static ssize_t sysconf_read_file(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char * s = big_buffer;
s += sprintf(s, "SYSCFG = %08x\n", readl(SYSCFG));
s += sprintf(s, "PFBASE = %08x\n", readl(PFBASE));
s += sprintf(s, "PFCEIL = %08x\n", readl(PFCEIL));
s += sprintf(s, "POLLFLAG = %08x\n", readl(POLLFLAG));
s += sprintf(s, "SYSRST = %08x\n", readl(SYSRST));
return simple_read_from_buffer(userbuf, count, ppos,
big_buffer, s-big_buffer);
}
static ssize_t gsctl_read_file(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char * s = big_buffer;
s += sprintf(s, "GSCTRL = %08x\n", readl(GSCTRL));
s += sprintf(s, "VSCTRL = %08x\n", readl(VSCTRL));
s += sprintf(s, "GBBASE = %08x\n", readl(GBBASE));
s += sprintf(s, "VBBASE = %08x\n", readl(VBBASE));
s += sprintf(s, "GDRCTRL = %08x\n", readl(GDRCTRL));
s += sprintf(s, "VCMSK = %08x\n", readl(VCMSK));
s += sprintf(s, "GSCADR = %08x\n", readl(GSCADR));
s += sprintf(s, "VSCADR = %08x\n", readl(VSCADR));
s += sprintf(s, "VUBASE = %08x\n", readl(VUBASE));
s += sprintf(s, "VVBASE = %08x\n", readl(VVBASE));
s += sprintf(s, "GSADR = %08x\n", readl(GSADR));
s += sprintf(s, "VSADR = %08x\n", readl(VSADR));
s += sprintf(s, "HCCTRL = %08x\n", readl(HCCTRL));
s += sprintf(s, "HCSIZE = %08x\n", readl(HCSIZE));
s += sprintf(s, "HCPOS = %08x\n", readl(HCPOS));
s += sprintf(s, "HCBADR = %08x\n", readl(HCBADR));
s += sprintf(s, "HCCKMSK = %08x\n", readl(HCCKMSK));
s += sprintf(s, "GPLUT = %08x\n", readl(GPLUT));
return simple_read_from_buffer(userbuf, count, ppos,
big_buffer, s-big_buffer);
}
static ssize_t display_read_file(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char * s = big_buffer;
s += sprintf(s, "DSCTRL = %08x\n", readl(DSCTRL));
s += sprintf(s, "DHT01 = %08x\n", readl(DHT01));
s += sprintf(s, "DHT02 = %08x\n", readl(DHT02));
s += sprintf(s, "DHT03 = %08x\n", readl(DHT03));
s += sprintf(s, "DVT01 = %08x\n", readl(DVT01));
s += sprintf(s, "DVT02 = %08x\n", readl(DVT02));
s += sprintf(s, "DVT03 = %08x\n", readl(DVT03));
s += sprintf(s, "DBCOL = %08x\n", readl(DBCOL));
s += sprintf(s, "BGCOLOR = %08x\n", readl(BGCOLOR));
s += sprintf(s, "DINTRS = %08x\n", readl(DINTRS));
s += sprintf(s, "DINTRE = %08x\n", readl(DINTRE));
s += sprintf(s, "DINTRCNT = %08x\n", readl(DINTRCNT));
s += sprintf(s, "DSIG = %08x\n", readl(DSIG));
s += sprintf(s, "DMCTRL = %08x\n", readl(DMCTRL));
s += sprintf(s, "CLIPCTRL = %08x\n", readl(CLIPCTRL));
s += sprintf(s, "SPOCTRL = %08x\n", readl(SPOCTRL));
s += sprintf(s, "SVCTRL = %08x\n", readl(SVCTRL));
s += sprintf(s, "DLSTS = %08x\n", readl(DLSTS));
s += sprintf(s, "DLLCTRL = %08x\n", readl(DLLCTRL));
s += sprintf(s, "DVLNUM = %08x\n", readl(DVLNUM));
s += sprintf(s, "DUCTRL = %08x\n", readl(DUCTRL));
s += sprintf(s, "DVECTRL = %08x\n", readl(DVECTRL));
s += sprintf(s, "DHDET = %08x\n", readl(DHDET));
s += sprintf(s, "DVDET = %08x\n", readl(DVDET));
s += sprintf(s, "DODMSK = %08x\n", readl(DODMSK));
s += sprintf(s, "CSC01 = %08x\n", readl(CSC01));
s += sprintf(s, "CSC02 = %08x\n", readl(CSC02));
s += sprintf(s, "CSC03 = %08x\n", readl(CSC03));
s += sprintf(s, "CSC04 = %08x\n", readl(CSC04));
s += sprintf(s, "CSC05 = %08x\n", readl(CSC05));
return simple_read_from_buffer(userbuf, count, ppos,
big_buffer, s-big_buffer);
}
static ssize_t clock_read_file(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char * s = big_buffer;
s += sprintf(s, "SYSCLKSRC = %08x\n", readl(SYSCLKSRC));
s += sprintf(s, "PIXCLKSRC = %08x\n", readl(PIXCLKSRC));
s += sprintf(s, "CLKSLEEP = %08x\n", readl(CLKSLEEP));
s += sprintf(s, "COREPLL = %08x\n", readl(COREPLL));
s += sprintf(s, "DISPPLL = %08x\n", readl(DISPPLL));
s += sprintf(s, "PLLSTAT = %08x\n", readl(PLLSTAT));
s += sprintf(s, "VOVRCLK = %08x\n", readl(VOVRCLK));
s += sprintf(s, "PIXCLK = %08x\n", readl(PIXCLK));
s += sprintf(s, "MEMCLK = %08x\n", readl(MEMCLK));
s += sprintf(s, "M24CLK = %08x\n", readl(M24CLK));
s += sprintf(s, "MBXCLK = %08x\n", readl(MBXCLK));
s += sprintf(s, "SDCLK = %08x\n", readl(SDCLK));
s += sprintf(s, "PIXCLKDIV = %08x\n", readl(PIXCLKDIV));
return simple_read_from_buffer(userbuf, count, ppos,
big_buffer, s-big_buffer);
}
static ssize_t sdram_read_file(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char * s = big_buffer;
s += sprintf(s, "LMRST = %08x\n", readl(LMRST));
s += sprintf(s, "LMCFG = %08x\n", readl(LMCFG));
s += sprintf(s, "LMPWR = %08x\n", readl(LMPWR));
s += sprintf(s, "LMPWRSTAT = %08x\n", readl(LMPWRSTAT));
s += sprintf(s, "LMCEMR = %08x\n", readl(LMCEMR));
s += sprintf(s, "LMTYPE = %08x\n", readl(LMTYPE));
s += sprintf(s, "LMTIM = %08x\n", readl(LMTIM));
s += sprintf(s, "LMREFRESH = %08x\n", readl(LMREFRESH));
s += sprintf(s, "LMPROTMIN = %08x\n", readl(LMPROTMIN));
s += sprintf(s, "LMPROTMAX = %08x\n", readl(LMPROTMAX));
s += sprintf(s, "LMPROTCFG = %08x\n", readl(LMPROTCFG));
s += sprintf(s, "LMPROTERR = %08x\n", readl(LMPROTERR));
return simple_read_from_buffer(userbuf, count, ppos,
big_buffer, s-big_buffer);
}
static ssize_t misc_read_file(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
char * s = big_buffer;
s += sprintf(s, "LCD_CONFIG = %08x\n", readl(LCD_CONFIG));
s += sprintf(s, "ODFBPWR = %08x\n", readl(ODFBPWR));
s += sprintf(s, "ODFBSTAT = %08x\n", readl(ODFBSTAT));
s += sprintf(s, "ID = %08x\n", readl(ID));
return simple_read_from_buffer(userbuf, count, ppos,
big_buffer, s-big_buffer);
}
static struct file_operations sysconf_fops = {
.read = sysconf_read_file,
.write = write_file_dummy,
.open = open_file_generic,
};
static struct file_operations clock_fops = {
.read = clock_read_file,
.write = write_file_dummy,
.open = open_file_generic,
};
static struct file_operations display_fops = {
.read = display_read_file,
.write = write_file_dummy,
.open = open_file_generic,
};
static struct file_operations gsctl_fops = {
.read = gsctl_read_file,
.write = write_file_dummy,
.open = open_file_generic,
};
static struct file_operations sdram_fops = {
.read = sdram_read_file,
.write = write_file_dummy,
.open = open_file_generic,
};
static struct file_operations misc_fops = {
.read = misc_read_file,
.write = write_file_dummy,
.open = open_file_generic,
};
static void __devinit mbxfb_debugfs_init(struct fb_info *fbi)
{
struct mbxfb_info *mfbi = fbi->par;
struct mbxfb_debugfs_data *dbg;
dbg = kzalloc(sizeof(struct mbxfb_debugfs_data), GFP_KERNEL);
mfbi->debugfs_data = dbg;
dbg->dir = debugfs_create_dir("mbxfb", NULL);
dbg->sysconf = debugfs_create_file("sysconf", 0444, dbg->dir,
fbi, &sysconf_fops);
dbg->clock = debugfs_create_file("clock", 0444, dbg->dir,
fbi, &clock_fops);
dbg->display = debugfs_create_file("display", 0444, dbg->dir,
fbi, &display_fops);
dbg->gsctl = debugfs_create_file("gsctl", 0444, dbg->dir,
fbi, &gsctl_fops);
dbg->sdram = debugfs_create_file("sdram", 0444, dbg->dir,
fbi, &sdram_fops);
dbg->misc = debugfs_create_file("misc", 0444, dbg->dir,
fbi, &misc_fops);
}
static void __devexit mbxfb_debugfs_remove(struct fb_info *fbi)
{
struct mbxfb_info *mfbi = fbi->par;
struct mbxfb_debugfs_data *dbg = mfbi->debugfs_data;
debugfs_remove(dbg->misc);
debugfs_remove(dbg->sdram);
debugfs_remove(dbg->gsctl);
debugfs_remove(dbg->display);
debugfs_remove(dbg->clock);
debugfs_remove(dbg->sysconf);
debugfs_remove(dbg->dir);
}
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