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-rw-r--r--package/gpio_rtl8196c/Makefile62
-rw-r--r--package/gpio_rtl8196c/src/Makefile8
-rw-r--r--package/gpio_rtl8196c/src/gpio_rtl8196c.c227
3 files changed, 297 insertions, 0 deletions
diff --git a/package/gpio_rtl8196c/Makefile b/package/gpio_rtl8196c/Makefile
new file mode 100644
index 000000000..45dc5cffe
--- /dev/null
+++ b/package/gpio_rtl8196c/Makefile
@@ -0,0 +1,62 @@
+#
+# Copyright (C) 2011 Roman Yeryomin <roman@advem.lv>
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+
+PKG_NAME:=gpio_rtl8196c
+PKG_VERSION:=0.0.1
+PKG_RELEASE:=1
+
+include $(INCLUDE_DIR)/package.mk
+
+define KernelPackage/gpio_rtl8196c
+ SUBMENU:=gpio_rtl8196c
+ TITLE:=gpio_rtl8196c
+ FILES:=$(PKG_BUILD_DIR)/gpio_rtl8196c.ko
+ DEPENDS:=
+ #KCONFIG:=
+ KCONFIG:=CONFIG_GPIO_RTL8196C=y CONFIG_GPIOLIB=y CONFIG_GENERIC_GPIO=y CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
+ #AUTOLOAD:=$(call AutoLoad,01,sigb in)
+endef
+
+define KernelPackage/gpio_rtl8196c/description
+ GPIO for Realtek rtl8196c
+endef
+
+EXTRA_KCONFIG:=CONFIG_GPIO_RTL8196C=y
+EXTRA_KCONFIG+=CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
+EXTRA_KCONFIG+=CONFIG_ARCH_REQUIRE_GPIOLIB=y
+EXTRA_KCONFIG+=CONFIG_GENERIC_GPIO=y
+EXTRA_KCONFIG+=CONFIG_GPIOLIB=y
+
+EXTRA_CFLAGS:= \
+ $(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \
+ $(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG))))
+
+MAKE_OPTS:= \
+ ARCH="$(LINUX_KARCH)" \
+ CROSS_COMPILE="$(TARGET_CROSS)" \
+ SUBDIRS="$(PKG_BUILD_DIR)" \
+ EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
+ $(EXTRA_KCONFIG)
+# MVER="-DMODULE -DMODVERSIONS -DEXPORT_SYMTAB"
+
+
+define Build/Prepare
+ mkdir -p $(PKG_BUILD_DIR)
+ $(CP) ./src/* $(PKG_BUILD_DIR)/
+endef
+
+define Build/Compile
+ $(MAKE) -C "$(LINUX_DIR)" \
+ $(MAKE_OPTS) \
+ modules
+ $(CP) $(PKG_BUILD_DIR)/gpio_rtl8196c.ko /tmp
+endef
+
+$(eval $(call KernelPackage,gpio_rtl8196c))
diff --git a/package/gpio_rtl8196c/src/Makefile b/package/gpio_rtl8196c/src/Makefile
new file mode 100644
index 000000000..6740c78db
--- /dev/null
+++ b/package/gpio_rtl8196c/src/Makefile
@@ -0,0 +1,8 @@
+#ifeq (${MODVERSIONS},yes)
+# MVER=-DMODVERSIONS -DEXPORT_SYMTAB
+#endif
+
+
+obj-$(if $(CONFIG_GPIO_RTL8196C),m) += gpio_rtl8196c.o
+
+
diff --git a/package/gpio_rtl8196c/src/gpio_rtl8196c.c b/package/gpio_rtl8196c/src/gpio_rtl8196c.c
new file mode 100644
index 000000000..5b875be12
--- /dev/null
+++ b/package/gpio_rtl8196c/src/gpio_rtl8196c.c
@@ -0,0 +1,227 @@
+/*
+ *
+ *
+ * Copyright (C)2006-2008 by
+ * All rights reserved.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/stat.h>
+#include <linux/moduleparam.h>
+
+////////////////////////////////////////////////////////////////////////
+//DEBUG macroses
+#define MOD_NAME "gpio_rtl8196c"
+
+#define PRINT( format, args ...) printk( "%15s:%3d = " format, MOD_NAME,__LINE__, ##args)
+
+////////////////////////////////////////////////////////////////////////
+#define RTL8196C_BASE_ADDR 0xb8000000
+#define RTL8196C_GPIO_ADDR (RTL8196C_BASE_ADDR + 0x3500)
+#define RTL8196C_GPIO_PABCD_CNT_ADDR (RTL8196C_GPIO_ADDR + 0x00)
+#define RTL8196C_GPIO_PABCD_TYPE_ADDR (RTL8196C_GPIO_ADDR + 0x00)
+#define RTL8196C_GPIO_PABCD_DIR_ADDR (RTL8196C_GPIO_ADDR + 0x08)
+#define RTL8196C_GPIO_PABCD_DAT_ADDR (RTL8196C_GPIO_ADDR + 0x0c)
+#define RTL8196C_GPIO_PABCD_ISR_ADDR (RTL8196C_GPIO_ADDR + 0x10)
+#define RTL8196C_GPIO_PAB_IMR_ADDR (RTL8196C_GPIO_ADDR + 0x14)
+#define RTL8196C_GPIO_PCD_IMR_ADDR (RTL8196C_GPIO_ADDR + 0x18)
+
+#define RTL8196C_MUX_ADDR (RTL8196C_BASE_ADDR + 0x40)
+
+static int g_muxdummy;
+
+//gpio shared pin mapping list
+#define RTL8196C_GPIO_SPML_LED_S0 //LED_PORT0,GPIOB2
+#define RTL8196C_GPIO_SPML_LED_S1 //LED_PORT1,GPIOB3
+#define RTL8196C_GPIO_SPML_LED_S2 //LED_PORT2,GPIOB4
+#define RTL8196C_GPIO_SPML_LED_S3 //LED_PORT3,GPIOB5
+#define RTL8196C_GPIO_SPML_LED_P0 //LED_PORT4,GPIOB6
+#define RTL8196C_GPIO_SPML_LED_P1 //GPIOB7
+#define RTL8196C_GPIO_SPML_LED_P2 //GPIOC0
+#define RTL8196C_GPIO_SPML_MEM //NF_CS1#MCS1, DRAM_CKE, GPIOA[1:0]
+#define RTL8196C_GPIO_SPML_JTAG //JTAG, GPIOA[6:2]
+#define RTL8196C_GPIO_SPML_UART
+#define RTL8196C_GPIO_SPML_PCIE
+
+static uint32_t rtl8196c_mux_value = 0x340FFF;
+
+struct rtl_gpio_chip
+{
+ struct gpio_chip chip;
+ uint32_t gpio_cnt;
+ uint32_t gpio_data;
+ uint32_t gpio_dir;
+ volatile uint8_t* regs;
+ spinlock_t lock;/* Lock used for synchronization */
+};
+
+extern struct rtl_gpio_chip gpio_rtl8196c;
+
+static inline struct rtl_gpio_chip *to_rtl_gpio_chip(struct gpio_chip *gc)
+{
+ return container_of(gc, struct rtl_gpio_chip, chip);
+}
+
+////////////////////////////////////////////////////////////////////////
+//configure ports as GPIO
+static int param_set_rtl8196c_mux( const char *val, struct kernel_param *kp )
+{
+ volatile uint32_t *mux = (uint32_t *)RTL8196C_MUX_ADDR;
+ unsigned long flags;
+
+ PRINT("param_set_rtl8196c_mux\n");
+ if ( !val )
+ {
+ return -EINVAL;
+ }
+ if ( sscanf( val, "0x%x", &rtl8196c_mux_value ) < 0 )
+ {
+ PRINT("err val\n");
+ return -EINVAL;
+ }
+ spin_lock_irqsave(&gpio_rtl8196c.lock, flags);
+ PRINT("mux set 0x%08x\n",rtl8196c_mux_value);
+ *mux = rtl8196c_mux_value;
+ spin_unlock_irqrestore(&gpio_rtl8196c.lock, flags);
+ return 0;
+}
+
+#define param_check_rtl8196c_mux(a,b) ;;
+
+////////////////////////////////////////////////////////////////////////
+//get current configured port value
+static int param_get_rtl8196c_mux( char *buf, struct kernel_param *kp )
+{
+ volatile uint32_t *mux = (uint32_t*)RTL8196C_MUX_ADDR;
+ unsigned long flags;
+
+ PRINT("param_get_rtl8196c_mux\n");
+ spin_lock_irqsave(&gpio_rtl8196c.lock, flags);
+ sprintf( buf, "0x%x", *mux );
+ spin_unlock_irqrestore(&gpio_rtl8196c.lock, flags);
+ return strlen( buf );
+}
+
+module_param_named(rtl8196c_mux, g_muxdummy, rtl8196c_mux, S_IRUGO | S_IWUSR);
+
+////////////////////////////////////////////////////////////////////////
+static int gpio_rtl8196c_dir_in( struct gpio_chip *chip, unsigned int gpio )
+{
+ volatile uint32_t *dir = (uint32_t*)RTL8196C_GPIO_PABCD_DIR_ADDR;
+ unsigned long flags;
+ struct rtl_gpio_chip *rgc = to_rtl_gpio_chip( chip );
+
+ PRINT("gpio_rtl8196c_dir_in\n");
+ PRINT("offset = %d\n", gpio);
+
+ spin_lock_irqsave(rgc->lock, flags);
+ rgc->gpio_dir &= ~(1 << gpio);
+ *dir = rgc->gpio_dir;
+ spin_unlock_irqrestore(rgc->lock, flags);
+
+ return 0;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+static int gpio_rtl8196c_dir_out( struct gpio_chip *chip, unsigned int gpio )
+{
+ volatile uint32_t *dir = (uint32_t*)RTL8196C_GPIO_PABCD_DIR_ADDR;
+ unsigned long flags;
+ struct rtl_gpio_chip *rgc = to_rtl_gpio_chip( chip );
+
+ PRINT("gpio_rtl8196c_dir_out\n");
+ PRINT("offset = %d\n", gpio);
+
+ spin_lock_irqsave(rgc->lock, flags);
+ rgc->gpio_dir |= (1 << gpio);
+ *dir = rgc->gpio_dir;
+ spin_unlock_irqrestore(rgc->lock, flags);
+
+ return 0;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+static int gpio_rtl8196c_get( struct gpio_chip *chip, unsigned int gpio )
+{
+ volatile uint32_t *dat = (uint32_t*)RTL8196C_GPIO_PABCD_DAT_ADDR;
+ int res=0;
+ unsigned long flags;
+ struct rtl_gpio_chip *rgc = to_rtl_gpio_chip( chip );
+
+ PRINT("gpio_rtl8196c_get\n");
+ PRINT("offset = %d\n", gpio);
+
+ spin_lock_irqsave(rgc->lock, flags);
+ //or get it from data register?
+ res = ((*dat)>>gpio)&0x1;
+ spin_unlock_irqrestore(rgc->lock, flags);
+ return res;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+static void gpio_rtl8196c_set( struct gpio_chip *chip, unsigned int gpio, int value )
+{
+ volatile uint32_t *dat = (uint32_t*)RTL8196C_GPIO_PABCD_DAT_ADDR;
+ int res=0;
+ unsigned long flags;
+ struct rtl_gpio_chip *rgc = to_rtl_gpio_chip( chip );
+
+ PRINT("gpio_rtl8196c_set\n");
+ PRINT("offset = %d = %d\n", gpio, value);
+
+ spin_lock_irqsave(rgc->lock, flags);
+ if ( value )
+ rgc->gpio_data |= (1 << gpio);
+ else
+ rgc->gpio_data &= ~(1 << gpio);
+ *dat = rgc->gpio_data;
+ spin_unlock_irqrestore(rgc->lock, flags);
+
+}
+
+////////////////////////////////////////////////////////////////////////
+//init module
+struct rtl_gpio_chip gpio_rtl8196c =
+{
+ .chip = {
+ .label = "gpio_rtl8196c",
+ .direction_input = gpio_rtl8196c_dir_in,
+ .get = gpio_rtl8196c_get,
+ .direction_output = gpio_rtl8196c_dir_out,
+ .set = gpio_rtl8196c_set,
+ .base = 0,
+ .ngpio = 32,
+ },
+ .gpio_dir = 0x0,
+};
+
+static int __init gpio_rtl8196c_init( void )
+{
+ PRINT("Start\n");
+ gpiochip_add( &gpio_rtl8196c.chip );
+ return 0;
+}
+
+////////////////////////////////////////////////////////////////////////
+//exit from module
+static int gpio_rtl8196c_exit( void )
+{
+ PRINT("End\n");
+ gpiochip_remove( &gpio_rtl8196c.chip );
+ return 0;
+}
+
+
+
+MODULE_AUTHOR("Artur Artamonov");
+MODULE_DESCRIPTION("gpio_rtl8196c");
+MODULE_LICENSE("GPL");
+
+module_init( gpio_rtl8196c_init );
+module_exit( gpio_rtl8196c_exit );
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 04:12:13 +0000