From 2b19ea70a709702d26c2429c23546fe2adf02375 Mon Sep 17 00:00:00 2001 From: Oliver Schinagl Date: Wed, 16 Mar 2011 09:28:30 +0000 Subject: gpio driver for W90N745 --- uClinux-2.4.20-uc1/drivers/Makefile | 2 +- uClinux-2.4.20-uc1/drivers/gpio/Config.in | 7 + uClinux-2.4.20-uc1/drivers/gpio/Makefile | 14 ++ uClinux-2.4.20-uc1/drivers/gpio/gpio_core.c | 311 ++++++++++++++++++++++++++++ 4 files changed, 333 insertions(+), 1 deletion(-) create mode 100644 uClinux-2.4.20-uc1/drivers/gpio/Config.in create mode 100644 uClinux-2.4.20-uc1/drivers/gpio/Makefile create mode 100644 uClinux-2.4.20-uc1/drivers/gpio/gpio_core.c diff --git a/uClinux-2.4.20-uc1/drivers/Makefile b/uClinux-2.4.20-uc1/drivers/Makefile index fb03e64..88d2f10 100644 --- a/uClinux-2.4.20-uc1/drivers/Makefile +++ b/uClinux-2.4.20-uc1/drivers/Makefile @@ -10,7 +10,7 @@ mod-subdirs := dio hil mtd sbus video macintosh usb input telephony sgi ide \ message/i2o message/fusion scsi md ieee1394 pnp isdn atm \ fc4 net/hamradio i2c acpi bluetooth -subdir-y := parport char block net sound misc media cdrom hotplug +subdir-y := parport char block net sound misc media cdrom hotplug gpio subdir-m := $(subdir-y) diff --git a/uClinux-2.4.20-uc1/drivers/gpio/Config.in b/uClinux-2.4.20-uc1/drivers/gpio/Config.in new file mode 100644 index 0000000..fea208f --- /dev/null +++ b/uClinux-2.4.20-uc1/drivers/gpio/Config.in @@ -0,0 +1,7 @@ +# +# Gpio device configuration +# +mainmenu_option next_comment +comment 'Winbond advanced setting' + dep_tristate 'Support W90N745 Chipset' CONFIG_W90N745 +endmenu diff --git a/uClinux-2.4.20-uc1/drivers/gpio/Makefile b/uClinux-2.4.20-uc1/drivers/gpio/Makefile new file mode 100644 index 0000000..2f78467 --- /dev/null +++ b/uClinux-2.4.20-uc1/drivers/gpio/Makefile @@ -0,0 +1,14 @@ +# +# Makefile for the linux kernel. +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# +# Note 2! The CFLAGS definitions are now in the main makefile... + +O_TARGET := gpio.o + +obj-y += gpio_core.o + +include $(TOPDIR)/Rules.make \ No newline at end of file diff --git a/uClinux-2.4.20-uc1/drivers/gpio/gpio_core.c b/uClinux-2.4.20-uc1/drivers/gpio/gpio_core.c new file mode 100644 index 0000000..8042e4d --- /dev/null +++ b/uClinux-2.4.20-uc1/drivers/gpio/gpio_core.c @@ -0,0 +1,311 @@ +/*$6 + +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include /* kmalloc */ +#include +#include +#include +#include +#include +#include +#include + +/* + =============================================================================== + =============================================================================== + */ + +void init_EBI(void) /* lsshi 2003-12-29 16:40 */ +{ +#if 0 + DWORD_WRITE(EXT0CON, EXT0CON_DATA); + DWORD_WRITE(EXT1CON, EXT1CON_DATA); + DWORD_WRITE(EXT2CON, EXT2CON_DATA); + DWORD_WRITE(EXT3CON, EXT3CON_DATA); +#endif + return; +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel0_3(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_0_3) | (mode & 0x3) + ); + return(GPIO_OK); +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel4_9(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_9_4) | ((mode & 0x3) << 2) + ); + return(GPIO_OK); +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel10_11(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_11_10) | (mode & 0x3) << 4 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel12(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_12) | (mode & 0x3) << 6 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel13(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_13) | (mode & 0x3) << 8 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel14(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_14) | (mode & 0x3) << 10 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel15_16(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_16_15) | (mode & 0x3) << 12 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + With IRQ capability + =============================================================================== + */ +int GPIO_EnableChannel17(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_17) | (mode & 0x3) << 14 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel18(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_18) | (mode & 0x3) << 16 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + mode=0x01 enable IRQ mode + =============================================================================== + */ +int GPIO_EnableChannel19(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_19) | (mode & 0x3) << 18 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_EnableChannel20(int mode) +{ + if(mode > 3) return GPIO_ERROR; + DWORD_WRITE + ( + GPIO_CFG, + (DWORD_READ(GPIO_CFG) & GPIO_CHANNEL_20) | (mode & 0x3) << 20 + ); + return(GPIO_OK); +} + +/* + =============================================================================== + gpio inline functions + =============================================================================== + */ +void GPIO_Enable_Channel(int channel) /* normal I/O mode */ +{ + DWORD_WRITE(GPIO_CFG, (DWORD_READ(GPIO_CFG) & channel)); + return; +} + +/* + =============================================================================== + =============================================================================== + */ +int Set_Dir(int channel, int dir) +{ + if(dir) /* out */ + { + DWORD_WRITE(GPIO_DIR, DWORD_READ(GPIO_DIR) | (1 << channel)); + } + else /* in */ + { + DWORD_WRITE(GPIO_DIR, DWORD_READ(GPIO_DIR) &~(1 << channel)); + } + + return GPIO_OK; +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_Data_Out(int channel, int dataout) +{ + Set_Dir(channel, GPIO_OUT); + + if(dataout > 1) return GPIO_ERROR; + if(dataout) /* write "1" */ + { + DWORD_WRITE(GPIO_DATAOUT, DWORD_READ(GPIO_DATAOUT) | (1 << channel)); + } + else /* write "0" */ + { + DWORD_WRITE(GPIO_DATAOUT, DWORD_READ(GPIO_DATAOUT) &~(1 << channel)); + } + + return GPIO_OK; +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_Data_In(int channel) +{ + Set_Dir(channel, GPIO_IN); + return(DWORD_READ(GPIO_DATAIN) & (1 << channel)); +} + +/* + =============================================================================== + =============================================================================== + */ +void GPIO_SET(int line, int sig_status) +{ + GPIO_Data_Out(line, sig_status); + + return; +} + +/* + =============================================================================== + =============================================================================== + */ +int GPIO_GET(int line) +{ + return GPIO_Data_In(line); +} + +/* + =============================================================================== + =============================================================================== + */ +int check_irq_self(int main_type, int irq_type) +{ + /*--------------------------*/ + volatile unsigned int value; + volatile unsigned char c; + /*--------------------------*/ +#if 0 + value = CSR_READ_OFFSET(SHARE_IRQ_ADDR, main_type); + c = value & 0x0F; + printk("main_type=%d,check_irq_self=%x\n",main_type,c); + + if(c==0x0f) + return 0; + + if(irq_type & c) + return 1; + else + return 0; +#endif +} -- cgit v0.12