X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fnsc_gpio.c;h=808d44e9a32a03bd1c2dc1e54432721e98a57e94;hb=0f1bce41fed02e45f31c2409f29e69e1fedebcdc;hp=3842c2727118a47bf119a2dae9658ed641d42b00;hpb=1a66fdf083bf2b60c4d12feb970bc7373b59e33a;p=linux-2.6

diff --git a/drivers/char/nsc_gpio.c b/drivers/char/nsc_gpio.c
index 3842c27271..808d44e9a3 100644
--- a/drivers/char/nsc_gpio.c
+++ b/drivers/char/nsc_gpio.c
@@ -7,23 +7,43 @@
    Copyright (c) 2005      Jim Cromie <jim.cromie@gmail.com>
 */
 
-#include <linux/config.h>
 #include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/nsc_gpio.h>
+#include <linux/platform_device.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
 #define NAME "nsc_gpio"
 
+void nsc_gpio_dump(struct nsc_gpio_ops *amp, unsigned index)
+{
+	/* retrieve current config w/o changing it */
+	u32 config = amp->gpio_config(index, ~0, 0);
+
+	/* user requested via 'v' command, so its INFO */
+	dev_info(amp->dev, "io%02u: 0x%04x %s %s %s %s %s %s %s\tio:%d/%d\n",
+		 index, config,
+		 (config & 1) ? "OE" : "TS",      /* output-enabled/tristate */
+		 (config & 2) ? "PP" : "OD",      /* push pull / open drain */
+		 (config & 4) ? "PUE" : "PUD",    /* pull up enabled/disabled */
+		 (config & 8) ? "LOCKED" : "",    /* locked / unlocked */
+		 (config & 16) ? "LEVEL" : "EDGE",/* level/edge input */
+		 (config & 32) ? "HI" : "LO",     /* trigger on rise/fall edge */
+		 (config & 64) ? "DEBOUNCE" : "", /* debounce */
+
+		 amp->gpio_get(index), amp->gpio_current(index));
+}
+
 ssize_t nsc_gpio_write(struct file *file, const char __user *data,
 		       size_t len, loff_t *ppos)
 {
-	unsigned m = iminor(file->f_dentry->d_inode);
+	unsigned m = iminor(file->f_path.dentry->d_inode);
 	struct nsc_gpio_ops *amp = file->private_data;
+	struct device *dev = amp->dev;
 	size_t i;
 	int err = 0;
 
@@ -39,43 +59,39 @@ ssize_t nsc_gpio_write(struct file *file, const char __user *data,
 			amp->gpio_set(m, 1);
 			break;
 		case 'O':
-			printk(KERN_INFO NAME ": GPIO%d output enabled\n", m);
+			dev_dbg(dev, "GPIO%d output enabled\n", m);
 			amp->gpio_config(m, ~1, 1);
 			break;
 		case 'o':
-			printk(KERN_INFO NAME ": GPIO%d output disabled\n", m);
+			dev_dbg(dev, "GPIO%d output disabled\n", m);
 			amp->gpio_config(m, ~1, 0);
 			break;
 		case 'T':
-			printk(KERN_INFO NAME ": GPIO%d output is push pull\n",
-			       m);
+			dev_dbg(dev, "GPIO%d output is push pull\n", m);
 			amp->gpio_config(m, ~2, 2);
 			break;
 		case 't':
-			printk(KERN_INFO NAME ": GPIO%d output is open drain\n",
-			       m);
+			dev_dbg(dev, "GPIO%d output is open drain\n", m);
 			amp->gpio_config(m, ~2, 0);
 			break;
 		case 'P':
-			printk(KERN_INFO NAME ": GPIO%d pull up enabled\n", m);
+			dev_dbg(dev, "GPIO%d pull up enabled\n", m);
 			amp->gpio_config(m, ~4, 4);
 			break;
 		case 'p':
-			printk(KERN_INFO NAME ": GPIO%d pull up disabled\n", m);
+			dev_dbg(dev, "GPIO%d pull up disabled\n", m);
 			amp->gpio_config(m, ~4, 0);
 			break;
-
 		case 'v':
 			/* View Current pin settings */
-			amp->gpio_dump(m);
+			amp->gpio_dump(amp, m);
 			break;
 		case '\n':
 			/* end of settings string, do nothing */
 			break;
 		default:
-			printk(KERN_ERR NAME
-			       ": GPIO-%2d bad setting: chr<0x%2x>\n", m,
-			       (int)c);
+			dev_err(dev, "io%2d bad setting: chr<0x%2x>\n",
+				m, (int)c);
 			err++;
 		}
 	}
@@ -88,7 +104,7 @@ ssize_t nsc_gpio_write(struct file *file, const char __user *data,
 ssize_t nsc_gpio_read(struct file *file, char __user * buf,
 		      size_t len, loff_t * ppos)
 {
-	unsigned m = iminor(file->f_dentry->d_inode);
+	unsigned m = iminor(file->f_path.dentry->d_inode);
 	int value;
 	struct nsc_gpio_ops *amp = file->private_data;
 
@@ -99,9 +115,10 @@ ssize_t nsc_gpio_read(struct file *file, char __user * buf,
 	return 1;
 }
 
-/* common routines for both scx200_gpio and pc87360_gpio */
+/* common file-ops routines for both scx200_gpio and pc87360_gpio */
 EXPORT_SYMBOL(nsc_gpio_write);
 EXPORT_SYMBOL(nsc_gpio_read);
+EXPORT_SYMBOL(nsc_gpio_dump);
 
 static int __init nsc_gpio_init(void)
 {