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linux/drivers/video/fbdev/mbx/mbxdebugfs.c
Arnd Bergmann fabd3152fb video/mbx: fix building debugfs support 
The mbx framebuffer debugfs support apparently hasn't been able
to build for a long time, at least since 2006 when the u.generic_ip
field in the inode was removed. This fixes the obvious bug, and
also makes it possible to build the driver as a module when
debugfs support is enabled, by simply including the C file.
It's ugly, but it won't make the driver any worse than it
already is, and doesn't require a more invasive change that
might break it further.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Cc: Raphael Assenat <raph@8d.com>
Cc: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2014-05-09 12:55:46 +03:00

252 lines
8.2 KiB
C
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#include <linux/debugfs.h>
#include <linux/slab.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->i_private;
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 const struct file_operations sysconf_fops = {
.read = sysconf_read_file,
.write = write_file_dummy,
.open = open_file_generic,
.llseek = default_llseek,
};
static const struct file_operations clock_fops = {
.read = clock_read_file,
.write = write_file_dummy,
.open = open_file_generic,
.llseek = default_llseek,
};
static const struct file_operations display_fops = {
.read = display_read_file,
.write = write_file_dummy,
.open = open_file_generic,
.llseek = default_llseek,
};
static const struct file_operations gsctl_fops = {
.read = gsctl_read_file,
.write = write_file_dummy,
.open = open_file_generic,
.llseek = default_llseek,
};
static const struct file_operations sdram_fops = {
.read = sdram_read_file,
.write = write_file_dummy,
.open = open_file_generic,
.llseek = default_llseek,
};
static const struct file_operations misc_fops = {
.read = misc_read_file,
.write = write_file_dummy,
.open = open_file_generic,
.llseek = default_llseek,
};
static void 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 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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