openwrt-xburst/target/linux/s3c24xx/patches-2.6.24/1089-debug-suspend-dump-gpio-states-add-GPA.patch.patch

From 475826b7d7ef66e80b64d97ea9e8aca56d97e313 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@openmoko.com>
Date: Sun, 13 Apr 2008 07:25:49 +0100
Subject: [PATCH] debug-suspend-dump-gpio-states-add-GPA.patch

Add support for GPA[] GPIO bus since we have some NCs
but they seem to output-only IO cells so no matter

Signed-off-by: Andy Green <andy@openmoko.com>
---
 arch/arm/plat-s3c24xx/gpio.c |  420 ++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 420 insertions(+), 0 deletions(-)

diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c
index ec3a09c..7cab212 100644
--- a/arch/arm/plat-s3c24xx/gpio.c
+++ b/arch/arm/plat-s3c24xx/gpio.c
@@ -32,6 +32,7 @@
 #include <asm/io.h>
 
 #include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-gpioj.h>
 
 void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function)
 {
@@ -186,3 +187,422 @@ int s3c2410_gpio_getirq(unsigned int pin)
 }
 
 EXPORT_SYMBOL(s3c2410_gpio_getirq);
+
+static void pretty_dump(u32 cfg, u32 state, u32 pull,
+			const char ** function_names_2,
+			const char ** function_names_3,
+			const char * prefix,
+			int count)
+{
+	int n;
+	const char *tag_type = NULL,
+		   *tag_state = NULL,
+		   *tag_pulldown = NULL,
+		   * level0 = "0",
+		   * level1 = "1";
+
+	for (n = 0; n < count; n++) {
+		switch ((cfg >> (2 * n)) & 3) {
+		case 0:
+			tag_type = "input      ";
+			break;
+		case 1:
+			tag_type = "OUTPUT     ";
+			break;
+		case 2:
+			if (function_names_2) {
+				if (function_names_2[n])
+					tag_type = function_names_2[n];
+				else
+					tag_type = "*** ILLEGAL CFG (2) *** ";
+			} else
+				tag_type = "(function) ";
+			break;
+		default:
+			if (function_names_3) {
+				if (function_names_3[n])
+					tag_type = function_names_3[n];
+				else
+					tag_type = "*** ILLEGAL CFG (3) *** ";
+			} else
+				tag_type = "(function) ";
+			break;
+		}
+		if ((state >> n) & 1)
+			tag_state = level1;
+		else
+			tag_state = level0;
+
+		if (((pull >> n) & 1))
+			tag_pulldown = "";
+		else
+			tag_pulldown = "(pulldown)";
+
+		printk(KERN_INFO"%s%02d: %s %s %s\n", prefix, n, tag_type,
+						      tag_state, tag_pulldown);
+	}
+	printk(KERN_INFO"\n");
+}
+
+static void pretty_dump_a(u32 cfg, u32 state,
+			  const char ** function_names,
+			  const char * prefix,
+			  int count)
+{
+	int n;
+	const char *tag_type = NULL,
+		   *tag_state = NULL,
+		   * level0 = "0",
+		   * level1 = "1";
+
+	for (n = 0; n < count; n++) {
+		switch ((cfg >> n) & 1) {
+		case 0:
+			tag_type = "OUTPUT     ";
+			break;
+		default:
+			if (function_names) {
+				if (function_names[n])
+					tag_type = function_names[n];
+				else
+					tag_type = "*** ILLEGAL CFG *** ";
+			} else
+				tag_type = "(function) ";
+			break;
+		}
+		if ((state >> n) & 1)
+			tag_state = level1;
+		else
+			tag_state = level0;
+
+		printk(KERN_INFO"%s%02d: %s %s\n", prefix, n, tag_type,
+						   tag_state);
+	}
+	printk(KERN_INFO"\n");
+}
+
+static const char * funcs_a[] = {
+	"ADDR0      ",
+	"ADDR16     ",
+	"ADDR17     ",
+	"ADDR18     ",
+	"ADDR19     ",
+	"ADDR20     ",
+	"ADDR21     ",
+	"ADDR22     ",
+	"ADDR23     ",
+	"ADDR24     ",
+	"ADDR25     ",
+	"ADDR26     ",
+	"nGCS[1]    ",
+	"nGCS[2]    ",
+	"nGCS[3]    ",
+	"nGCS[4]    ",
+	"nGCS[5]    ",
+	"CLE        ",
+	"ALE        ",
+	"nFWE       ",
+	"nFRE       ",
+	"nRSTOUT    ",
+	"nFCE       ",
+	NULL,
+	NULL
+};
+
+
+static const char * funcs_b2[] = {
+	"TOUT0      ",
+	"TOUT1      ",
+	"TOUT2      ",
+	"TOUT3      ",
+	"TCLK[0]    ",
+	"nXBACK     ",
+	"nXBREQ     ",
+	"nXDACK1    ",
+	"nXDREQ1    ",
+	"nXDACK0    ",
+	"nXDREQ0    ",
+};
+static const char * funcs_b3[] = {
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+};
+
+static const char * funcs_c2[] = {
+	"LEND       ",
+	"VCLK       ",
+	"VLINE      ",
+	"VFRAME     ",
+	"VM         ",
+	"LCD_LPCOE  ",
+	"LCD_LPCREV ",
+	"LCD_LPCREVB",
+	"VD[0]      ",
+	"VD[1]      ",
+	"VD[2]      ",
+	"VD[3]      ",
+	"VD[4]      ",
+	"VD[5]      ",
+	"VD[6]      ",
+	"VD[7]      ",
+};
+static const char * funcs_c3[] = {
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"I2SSDI     ",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+};
+
+static const char * funcs_d2[] = {
+	"VD[8]      ",
+	"VD[9]      ",
+	"VD[10]     ",
+	"VD[11]     ",
+	"VD[12]     ",
+	"VD[13]     ",
+	"VD[14]     ",
+	"VD[15]     ",
+	"VD[16]     ",
+	"VD[17]     ",
+	"VD[18]     ",
+	"VD[19]     ",
+	"VD[20]     ",
+	"VD[21]     ",
+	"VD[22]     ",
+	"VD[23]     ",
+};
+static const char * funcs_d3[] = {
+	"nSPICS1    ",
+	"SPICLK1    ",
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"SPIMISO1   ",
+	"SPIMOSI1   ",
+	"SPICLK1    ",
+	NULL,
+	NULL,
+	NULL,
+	"nSS1       ",
+	"nSS0       ",
+};
+
+static const char * funcs_e2[] = {
+	"I2SLRCK    ",
+	"I2SSCLK    ",
+	"CDCLK      ",
+	"I2SDI      ",
+	"I2SDO      ",
+	"SDCLK      ",
+	"SDCMD      ",
+	"SDDAT0     ",
+	"SDDAT1     ",
+	"SDDAT2     ",
+	"SDDAT3     ",
+	"SPIMISO0   ",
+	"SPIMOSI0   ",
+	"SPICLK0    ",
+	"IICSCL     ",
+	"IICSDA     ",
+};
+static const char * funcs_e3[] = {
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+};
+
+static const char * funcs_f2[] = {
+	"EINT[0]    ",
+	"EINT[1]    ",
+	"EINT[2]    ",
+	"EINT[3]    ",
+	"EINT[4]    ",
+	"EINT[5]    ",
+	"EINT[6]    ",
+	"EINT[7]    ",
+};
+static const char * funcs_f3[] = {
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+};
+
+
+static const char * funcs_g2[] = {
+	"EINT[8]    ",
+	"EINT[9]    ",
+	"EINT[10]   ",
+	"EINT[11]   ",
+	"EINT[12]   ",
+	"EINT[13]   ",
+	"EINT[14]   ",
+	"EINT[15]   ",
+	"EINT[16]   ",
+	"EINT[17]   ",
+	"EINT[18]   ",
+	"EINT[19]   ",
+	"EINT[20]   ",
+	"EINT[21]   ",
+	"EINT[22]   ",
+	"EINT[23]   ",
+};
+static const char * funcs_g3[] = {
+	NULL,
+	NULL,
+	"nSS0       ",
+	"nSS1       ",
+	"LCD_PWRDN  ",
+	"SPIMISO1   ",
+	"SPIMOSI1   ",
+	"SPICLK1    ",
+	NULL,
+	"nRTS1      ",
+	"nCTS1      ",
+	"TCLK[1]    ",
+	"nSPICS0    ",
+	NULL,
+	NULL,
+	NULL,
+};
+
+static const char * funcs_h2[] = {
+	"nCTS0      ",
+	"nRTS0      ",
+	"TXD[0]     ",
+	"RXD[0]     ",
+	"TXD[1]     ",
+	"RXD[1]     ",
+	"TXD[2]     ",
+	"RXD[2]     ",
+	"UEXTCLK    ",
+	"CLKOUT0    ",
+	"CLKOUT1    ",
+};
+static const char * funcs_h3[] = {
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	"nRTS1      ",
+	"nCTS1      ",
+	NULL,
+	"nSPICS0    ",
+	NULL,
+};
+
+static const char * funcs_j2[] = {
+	"CAMDATA[0] ",
+	"CAMDATA[1] ",
+	"CAMDATA[2] ",
+	"CAMDATA[3] ",
+	"CAMDATA[4] ",
+	"CAMDATA[5] ",
+	"CAMDATA[6] ",
+	"CAMDATA[7] ",
+	"CAMPCLK    ",
+	"CAMVSYNC   ",
+	"CAMHREF    ",
+	"CAMCLKOUT  ",
+	"CAMRESET   ",
+};
+static const char * funcs_j3[] = {
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+};
+
+/* used to dump GPIO states at suspend */
+void s3c24xx_dump_gpio_states(void)
+{
+	pretty_dump_a(__raw_readl(S3C2410_GPACON),
+		      __raw_readl(S3C2410_GPADAT),
+		      funcs_a, "GPA", 25);
+	pretty_dump(__raw_readl(S3C2410_GPBCON),
+		    __raw_readl(S3C2410_GPBDAT),
+		    __raw_readl(S3C2410_GPBUP),
+		    funcs_b2, funcs_b3, "GPB", 11);
+	pretty_dump(__raw_readl(S3C2410_GPCCON),
+		    __raw_readl(S3C2410_GPCDAT),
+		    __raw_readl(S3C2410_GPCUP),
+		    funcs_c2, funcs_c3, "GPC", 16);
+	pretty_dump(__raw_readl(S3C2410_GPDCON),
+		    __raw_readl(S3C2410_GPDDAT),
+		    __raw_readl(S3C2410_GPDUP),
+		    funcs_d2, funcs_d3, "GPD", 16);
+	pretty_dump(__raw_readl(S3C2410_GPECON),
+		    __raw_readl(S3C2410_GPEDAT),
+		    __raw_readl(S3C2410_GPEUP),
+		    funcs_e2, funcs_e3, "GPE", 16);
+	pretty_dump(__raw_readl(S3C2410_GPFCON),
+		    __raw_readl(S3C2410_GPFDAT),
+		    __raw_readl(S3C2410_GPFUP),
+		    funcs_f2, funcs_f3, "GPF", 8);
+	pretty_dump(__raw_readl(S3C2410_GPGCON),
+		    __raw_readl(S3C2410_GPGDAT),
+		    __raw_readl(S3C2410_GPGUP),
+		    funcs_g2, funcs_g3, "GPG", 16);
+	pretty_dump(__raw_readl(S3C2410_GPHCON),
+		    __raw_readl(S3C2410_GPHDAT),
+		    __raw_readl(S3C2410_GPHUP),
+		    funcs_h2, funcs_h3, "GPH", 11);
+	pretty_dump(__raw_readl(S3C2440_GPJCON),
+		    __raw_readl(S3C2440_GPJDAT),
+		    __raw_readl(S3C2440_GPJUP),
+		    funcs_j2, funcs_j3, "GPJ", 13);
+
+}
+EXPORT_SYMBOL(s3c24xx_dump_gpio_states);
-- 
1.5.6.5