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danube led cleanup

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SVN-Revision: 9733
This commit is contained in:
John Crispin 2007-12-13 20:51:57 +00:00
parent 390c117899
commit 31857f702b
2 changed files with 69 additions and 243 deletions
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297
target/linux/danube/files/drivers/char/danube_led.c
View file

@ -18,7 +18,6 @@
*
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/version.h>
@ -29,39 +28,15 @@
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <linux/errno.h>
/*
* Chip Specific Head File
*/
#include <asm/danube/danube.h>
#include <asm/danube/port.h>
#include <asm/danube/danube_led.h>
#include <asm/danube/danube_gptu.h>
/*
* ####################################
* Definition
* ####################################
*/
#define DEBUG_ON_AMAZON 0
#define DATA_CLOCKING_EDGE FALLING_EDGE
#define BOARD_TYPE REFERENCE_BOARD
#define DEBUG_WRITE_REGISTER 0
#define RISING_EDGE 0
#define FALLING_EDGE 1
#define EVALUATION_BOARD 0
#define REFERENCE_BOARD 1
/*
* GPIO Driver Function Wrapping
*/
#define port_reserve_pin danube_port_reserve_pin
#define port_free_pin danube_port_free_pin
#define port_set_altsel0 danube_port_set_altsel0
@ -73,9 +48,6 @@
#define port_set_open_drain danube_port_set_open_drain
#define port_clear_open_drain danube_port_clear_open_drain
/*
* GPIO Port Used By LED
*/
#define LED_SH_PORT 0
#define LED_SH_PIN 4
#define LED_SH_DIR 1
@ -119,9 +91,6 @@
#define ADSL_LED_IS_EXCLUSIVE 0
#endif
/*
* Define GPIO Functions
*/
#if LED_SH_DIR
#define LED_SH_DIR_SETUP port_set_dir_out
#else
@ -227,115 +196,10 @@
#define LED_ADSL1_OPENDRAIN_SETUP port_clear_open_drain
#endif
/*
* LED Device Minor Number
*/
#if !defined(LED_MINOR)
#define LED_MINOR 151 // This number is written in Linux kernel document "devices.txt"
#endif // !defined(LED_MINOR)
/*
* Bits Operation
*/
#define GET_BITS(x, msb, lsb) (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
#define SET_BITS(x, msb, lsb, value) (((x) & ~(((1 << ((msb) + 1)) - 1) ^ ((1 << (lsb)) - 1))) | (((value) & ((1 << (1 + (msb) - (lsb))) - 1)) << (lsb)))
/*
* LED Registers Mapping
*/
#define DANUBE_LED (KSEG1 + 0x1E100BB0)
#define DANUBE_LED_CON0 ((volatile unsigned int*)(DANUBE_LED + 0x0000))
#define DANUBE_LED_CON1 ((volatile unsigned int*)(DANUBE_LED + 0x0004))
#define DANUBE_LED_CPU0 ((volatile unsigned int*)(DANUBE_LED + 0x0008))
#define DANUBE_LED_CPU1 ((volatile unsigned int*)(DANUBE_LED + 0x000C))
#define DANUBE_LED_AR ((volatile unsigned int*)(DANUBE_LED + 0x0010))
/*
* LED Control 0 Register
*/
#define LED_CON0_SWU (*DANUBE_LED_CON0 & (1 << 31))
#define LED_CON0_FALLING_EDGE (*DANUBE_LED_CON0 & (1 << 26))
#define LED_CON0_AD1 (*DANUBE_LED_CON0 & (1 << 25))
#define LED_CON0_AD0 (*DANUBE_LED_CON0 & (1 << 24))
#define LED_CON0_LBn(n) (*DANUBE_LED_CON0 & (1 << n))
#define LED_CON0_DEFAULT_VALUE (0x80000000 | (DATA_CLOCKING_EDGE << 26))
/*
* LED Control 1 Register
*/
#define LED_CON1_US (*DANUBE_LED_CON1 >> 30)
#define LED_CON1_SCS (*DANUBE_LED_CON1 & (1 << 28))
#define LED_CON1_FPID GET_BITS(*DANUBE_LED_CON1, 27, 23)
#define LED_CON1_FPIS GET_BITS(*DANUBE_LED_CON1, 21, 20)
#define LED_CON1_DO GET_BITS(*DANUBE_LED_CON1, 19, 18)
#define LED_CON1_G2 (*DANUBE_LED_CON1 & (1 << 2))
#define LED_CON1_G1 (*DANUBE_LED_CON1 & (1 << 1))
#define LED_CON1_G0 (*DANUBE_LED_CON1 & 0x01)
#define LED_CON1_G (*DANUBE_LED_CON1 & 0x07)
#define LED_CON1_DEFAULT_VALUE 0x00000000
/*
* LED Data Output CPU 0 Register
*/
#define LED_CPU0_Ln(n) (*DANUBE_LED_CPU0 & (1 << n))
#define LED_LED_CPU0_DEFAULT_VALUE 0x00000000
/*
* LED Data Output CPU 1 Register
*/
#define LED_CPU1_Ln(n) (*DANUBE_LED_CPU1 & (1 << n))
#define LED_LED_CPU1_DEFAULT_VALUE 0x00000000
/*
* LED Data Output Access Rights Register
*/
#define LED_AR_Ln(n) (*DANUBE_LED_AR & (1 << n))
#define LED_AR_DEFAULT_VALUE 0x00000000
/*
* If try module on Amazon chip, prepare some tricks to prevent invalid memory write.
*/
#if defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
char g_pFakeRegisters[0x50];
#undef DEBUG_WRITE_REGISTER
#undef DANUBE_LED
#define DANUBE_LED g_pFakeRegisters
#undef port_reserve_pin
#undef port_free_pin
#undef port_set_altsel0
#undef port_clear_altsel0
#undef port_set_altsel1
#undef port_clear_altsel1
#undef port_set_dir_out
#define port_reserve_pin amazon_port_reserve_pin
#define port_free_pin amazon_port_free_pin
#define port_set_altsel0 amazon_port_set_altsel0
#define port_clear_altsel0 amazon_port_clear_altsel0
#define port_set_altsel1 amazon_port_set_altsel1
#define port_clear_altsel1 amazon_port_clear_altsel1
#define port_set_dir_out amazon_port_set_dir_out
#endif // defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
/*
* File Operations
*/
static int led_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
static int led_open(struct inode *, struct file *);
static int led_release(struct inode *, struct file *);
/*
* Software Update LED
*/
static inline int update_led(void);
/*
* LED Configuration Functions
*/
static inline unsigned int set_update_source(unsigned int, unsigned long, unsigned long);
static inline unsigned int set_blink_in_batch(unsigned int, unsigned long, unsigned long);
static inline unsigned int set_data_clock_edge(unsigned int, unsigned long);
@ -347,49 +211,21 @@ static inline unsigned int set_number_of_enabled_led(unsigned int, unsigned long
static inline unsigned int set_data_in_batch(unsigned int, unsigned long, unsigned long);
static inline unsigned int set_access_right(unsigned int, unsigned long, unsigned long);
/*
* PMU Operation
*/
static inline void enable_led(void);
static inline void disable_led(void);
/*
* GPIO Setup & Release
*/
static inline int setup_gpio_port(unsigned long);
static inline void release_gpio_port(unsigned long);
/*
* GPT Setup & Release
*/
static inline int setup_gpt(int, unsigned long);
static inline void release_gpt(int);
/*
* Turn On/Off LED
*/
static inline int turn_on_led(unsigned long);
static inline void turn_off_led(unsigned long);
static struct semaphore led_sem;
static struct file_operations led_fops = {
owner: THIS_MODULE,
ioctl: led_ioctl,
open: led_open,
release: led_release
};
static struct miscdevice led_miscdev = {
LED_MINOR,
"led",
&led_fops,
NULL,
NULL,
NULL
};
static unsigned long gpt_on = 0;
static unsigned long gpt_freq = 0;
@ -399,35 +235,6 @@ static unsigned long f_led_on = 0;
static int module_id;
static int
led_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
int ret = -EINVAL;
struct led_config_param param;
switch ( cmd )
{
case LED_CONFIG:
copy_from_user(&param, (char*)arg, sizeof(param));
ret = danube_led_config(&param);
break;
}
return ret;
}
static int
led_open (struct inode *inode, struct file *file)
{
return 0;
}
static int
led_release (struct inode *inode, struct file *file)
{
return 0;
}
static inline int
update_led (void)
{
@ -436,7 +243,7 @@ update_led (void)
/*
* GPT2 or FPID is the clock to update LEDs automatically.
*/
if ( LED_CON1_US != 0 )
if (readl(DANUBE_LED_CON1) >> 30)
return 0;
/*
@ -445,7 +252,7 @@ update_led (void)
for ( i = 100000; i != 0; i -= j / 16 )
{
down(&led_sem);
if ( !LED_CON0_SWU )
if (!(readl(DANUBE_LED_CON0) & LED_CON0_SWU))
{
*DANUBE_LED_CON0 |= 1 << 31;
up(&led_sem);
@ -531,7 +338,6 @@ set_access_right (unsigned int reg, unsigned long mask, unsigned long ar)
static inline void
enable_led (void)
{
#if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON
/* Activate LED module in PMU. */
int i = 1000000;
@ -539,42 +345,19 @@ enable_led (void)
while ( --i && (*(unsigned long *)0xBF102020 & (1 << 11)) );
if ( !i )
panic("Activating LED in PMU failed!");
#endif
}
static inline void
disable_led (void)
{
#if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON
/* Inactivating LED module in PMU. */
*(unsigned long *)0xBF10201C |= 1 << 11;
#endif
}
static inline int
setup_gpio_port (unsigned long adsl)
{
#if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON
int ret = 0;
#if defined(DEBUG_WRITE_REGISTER) && DEBUG_WRITE_REGISTER
if ( adsl )
{
*(unsigned long *)0xBE100B18 |= 0x30;
*(unsigned long *)0xBE100B1C |= 0x20;
*(unsigned long *)0xBE100B1C &= ~0x10;
*(unsigned long *)0xBE100B20 |= 0x30;
*(unsigned long *)0xBE100B24 |= 0x30;
}
else
{
*(unsigned long *)0xBE100B18 |= 0x70;
*(unsigned long *)0xBE100B1C |= 0x70;
*(unsigned long *)0xBE100B20 &= ~0x70;
*(unsigned long *)0xBE100B24 |= 0x70;
}
#else
/*
* Reserve all pins before config them.
*/
@ -635,8 +418,6 @@ setup_gpio_port (unsigned long adsl)
LED_SH_DIR_SETUP(LED_SH_PORT, LED_SH_PIN, module_id);
LED_SH_OPENDRAIN_SETUP(LED_SH_PORT, LED_SH_PIN, module_id);
}
#endif
#endif
return 0;
}
@ -644,8 +425,6 @@ setup_gpio_port (unsigned long adsl)
static inline void
release_gpio_port (unsigned long adsl)
{
#if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON
#if !defined(DEBUG_WRITE_REGISTER) || !DEBUG_WRITE_REGISTER
if ( adsl )
{
port_free_pin(LED_ADSL0_PORT, LED_ADSL0_PIN, module_id);
@ -657,8 +436,6 @@ release_gpio_port (unsigned long adsl)
port_free_pin(LED_D_PORT, LED_D_PIN, module_id);
port_free_pin(LED_SH_PORT, LED_SH_PIN, module_id);
}
#endif
#endif
}
static inline int
@ -735,7 +512,7 @@ danube_led_set_blink (unsigned int led, unsigned int blink)
*DANUBE_LED_CON0 &= ~bit_mask;
up(&led_sem);
return (led == 0 && LED_CON0_AD0) || (led == 1 && LED_CON0_AD1) ? -EINVAL : 0;
return (led == 0 && (readl(DANUBE_LED_CON0) & LED_CON0_AD0)) || (led == 1 && (readl(DANUBE_LED_CON0) & LED_CON0_AD1)) ? -EINVAL : 0;
}
int
@ -786,7 +563,7 @@ danube_led_config (struct led_config_param* param)
f_setup_gpt2 = 0;
f_software_update = LED_CON0_SWU ? 0 : 1;
f_software_update = (readl(DANUBE_LED_CON0) & LED_CON0_SWU) ? 0 : 1;
new_led_on = f_led_on;
new_adsl_on = adsl_on;
@ -968,10 +745,6 @@ danube_led_config (struct led_config_param* param)
if ( !f_led_on )
disable_led();
#if defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
*DANUBE_LED_CON0 &= 0x7FFFFFFF;
#endif
up(&led_sem);
return 0;
@ -987,6 +760,50 @@ INVALID_PARAM:
return -EINVAL;
}
static int
led_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
int ret = -EINVAL;
struct led_config_param param;
switch ( cmd )
{
case LED_CONFIG:
copy_from_user(&param, (char*)arg, sizeof(param));
ret = danube_led_config(&param);
break;
}
return ret;
}
static int
led_open (struct inode *inode, struct file *file)
{
return 0;
}
static int
led_release (struct inode *inode, struct file *file)
{
return 0;
}
static struct file_operations led_fops = {
owner: THIS_MODULE,
ioctl: led_ioctl,
open: led_open,
release: led_release
};
static struct miscdevice led_miscdev = {
151,
"led",
&led_fops,
NULL,
NULL,
NULL
};
int __init
danube_led_init (void)
@ -999,15 +816,11 @@ danube_led_init (void)
/*
* Set default value to registers to turn off all LED light.
*/
*DANUBE_LED_AR = LED_AR_DEFAULT_VALUE;
*DANUBE_LED_CPU0 = LED_LED_CPU0_DEFAULT_VALUE;
*DANUBE_LED_CPU1 = LED_LED_CPU1_DEFAULT_VALUE;
*DANUBE_LED_CON1 = LED_CON1_DEFAULT_VALUE;
*DANUBE_LED_CON0 = LED_CON0_DEFAULT_VALUE;
#if defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
*DANUBE_LED_CON0 &= 0x7FFFFFFF;
#endif
*DANUBE_LED_AR = 0x0;
*DANUBE_LED_CPU0 = 0x0;
*DANUBE_LED_CPU1 = 0x0;
*DANUBE_LED_CON1 = 0x0;
*DANUBE_LED_CON0 = (0x80000000 | (DATA_CLOCKING_EDGE << 26));
disable_led();
@ -1031,7 +844,6 @@ danube_led_init (void)
up(&led_sem);
#if BOARD_TYPE == REFERENCE_BOARD
/* Add to enable hardware relay */
/* Map for LED on reference board
WLAN_READ LED11 OUT1 15
@ -1055,7 +867,6 @@ danube_led_init (void)
param.data_mask = 1 << 4;
param.data = 1 << 4;
danube_led_config(&param);
#endif
// by default, update by FSC clock (FPID)
param.operation_mask = CONFIG_OPERATION_UPDATE_CLOCK;

15
target/linux/danube/files/include/asm-mips/danube/danube.h
View file

@ -304,4 +304,19 @@
#define DANUBE_BIU_WDT_CR_CLKDIV_SET(value) (((( 1 << 2) - 1) & (value)) << 24)
#define DANUBE_BIU_WDT_CR_RELOAD_SET(value) (((( 1 << 16) - 1) & (value)) << 0)
/*------------ LED */
#define DANUBE_LED_BASE_ADDR (KSEG1 + 0x1E100BB0)
#define DANUBE_LED_CON0 ((u32*)(DANUBE_LED_BASE_ADDR + 0x0000))
#define DANUBE_LED_CON1 ((u32*)(DANUBE_LED_BASE_ADDR + 0x0004))
#define DANUBE_LED_CPU0 ((u32*)(DANUBE_LED_BASE_ADDR + 0x0008))
#define DANUBE_LED_CPU1 ((u32*)(DANUBE_LED_BASE_ADDR + 0x000C))
#define DANUBE_LED_AR ((u32*)(DANUBE_LED_BASE_ADDR + 0x0010))
#define LED_CON0_SWU (1 << 31)
#define LED_CON0_AD1 (1 << 25)
#define LED_CON0_AD0 (1 << 24)
#endif