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openwrt/target/linux/s3c24xx/patches-2.6.26/0079-debug-suspend-dump-gpio-states-add-GPA.patch.patch

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From c6eeaaf1c19526e7ceb535663c3b8143c19b8cc7 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@openmoko.com>
Date: Fri, 25 Jul 2008 23:06:00 +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 | 421 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 421 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c
index ee99dcc..4e94801 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)
{
@@ -215,3 +216,423 @@ int s3c2410_gpio_irq2pin(unsigned int irq)
}
EXPORT_SYMBOL(s3c2410_gpio_irq2pin);
+
+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);
+
--
1.5.6.3
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