*
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/types.h>
#include <linux/fs.h>
-#include <linux/miscdevice.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <linux/errno.h>
+#include <asm/danube/danube.h>
+#include <asm/danube/danube_gpio.h>
+#include <asm/danube/danube_pmu.h>
-/*
- * Chip Specific Head File
- */
-#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 DANUBE_LED_CLK_EDGE DANUBE_LED_FALLING
+//#define DANUBE_LED_CLK_EDGE DANUBE_LED_RISING
-#define BOARD_TYPE REFERENCE_BOARD
+#define DANUBE_LED_SPEED DANUBE_LED_8HZ
-#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
-#define port_clear_altsel0 danube_port_clear_altsel0
-#define port_set_altsel1 danube_port_set_altsel1
-#define port_clear_altsel1 danube_port_clear_altsel1
-#define port_set_dir_out danube_port_set_dir_out
-#define port_clear_dir_out danube_port_clear_dir_out
-#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
-#define LED_SH_ALTSEL0 1
-#define LED_SH_ALTSEL1 0
-#define LED_SH_OPENDRAIN 1
-#define LED_D_PORT 0
-#define LED_D_PIN 5
-#define LED_D_DIR 1
-#define LED_D_ALTSEL0 1
-#define LED_D_ALTSEL1 0
-#define LED_D_OPENDRAIN 1
-#define LED_ST_PORT 0
-#define LED_ST_PIN 6
-#define LED_ST_DIR 1
-#define LED_ST_ALTSEL0 1
-#define LED_ST_ALTSEL1 0
-#define LED_ST_OPENDRAIN 1
+#define DANUBE_LED_GPIO_PORT 0
-#define LED_ADSL0_PORT 0
-#define LED_ADSL0_PIN 4
-#define LED_ADSL0_DIR 1
-#define LED_ADSL0_ALTSEL0 0
-#define LED_ADSL0_ALTSEL1 1
-#define LED_ADSL0_OPENDRAIN 1
-#define LED_ADSL1_PORT 0
-#define LED_ADSL1_PIN 5
-#define LED_ADSL1_DIR 1
-#define LED_ADSL1_ALTSEL0 1
-#define LED_ADSL1_ALTSEL1 1
-#define LED_ADSL1_OPENDRAIN 1
+static int danube_led_major;
-#if (LED_SH_PORT == LED_ADSL0_PORT && LED_SH_PIN == LED_ADSL0_PIN) \
- || (LED_D_PORT == LED_ADSL0_PORT && LED_D_PIN == LED_ADSL0_PIN) \
- || (LED_ST_PORT == LED_ADSL0_PORT && LED_ST_PIN == LED_ADSL0_PIN) \
- || (LED_SH_PORT == LED_ADSL1_PORT && LED_SH_PIN == LED_ADSL1_PIN) \
- || (LED_D_PORT == LED_ADSL1_PORT && LED_D_PIN == LED_ADSL1_PIN) \
- || (LED_ST_PORT == LED_ADSL1_PORT && LED_ST_PIN == LED_ADSL1_PIN)
- #define ADSL_LED_IS_EXCLUSIVE 1
-#else
- #define ADSL_LED_IS_EXCLUSIVE 0
-#endif
-
-/*
- * Define GPIO Functions
- */
-#if LED_SH_DIR
- #define LED_SH_DIR_SETUP port_set_dir_out
-#else
- #define LED_SH_DIR_SETUP port_clear_dir_out
-#endif
-#if LED_SH_ALTSEL0
- #define LED_SH_ALTSEL0_SETUP port_set_altsel0
-#else
- #define LED_SH_ALTSEL0_SETUP port_clear_altsel0
-#endif
-#if LED_SH_ALTSEL1
- #define LED_SH_ALTSEL1_SETUP port_set_altsel1
-#else
- #define LED_SH_ALTSEL1_SETUP port_clear_altsel1
-#endif
-#if LED_SH_OPENDRAIN
- #define LED_SH_OPENDRAIN_SETUP port_set_open_drain
-#else
- #define LED_SH_OPENDRAIN_SETUP port_clear_open_drain
-#endif
-
-#if LED_D_DIR
- #define LED_D_DIR_SETUP port_set_dir_out
-#else
- #define LED_D_DIR_SETUP port_clear_dir_out
-#endif
-#if LED_D_ALTSEL0
- #define LED_D_ALTSEL0_SETUP port_set_altsel0
-#else
- #define LED_D_ALTSEL0_SETUP port_clear_altsel0
-#endif
-#if LED_D_ALTSEL1
- #define LED_D_ALTSEL1_SETUP port_set_altsel1
-#else
- #define LED_D_ALTSEL1_SETUP port_clear_altsel1
-#endif
-#if LED_D_OPENDRAIN
- #define LED_D_OPENDRAIN_SETUP port_set_open_drain
-#else
- #define LED_D_OPENDRAIN_SETUP port_clear_open_drain
-#endif
-
-#if LED_ST_DIR
- #define LED_ST_DIR_SETUP port_set_dir_out
-#else
- #define LED_ST_DIR_SETUP port_clear_dir_out
-#endif
-#if LED_ST_ALTSEL0
- #define LED_ST_ALTSEL0_SETUP port_set_altsel0
-#else
- #define LED_ST_ALTSEL0_SETUP port_clear_altsel0
-#endif
-#if LED_ST_ALTSEL1
- #define LED_ST_ALTSEL1_SETUP port_set_altsel1
-#else
- #define LED_ST_ALTSEL1_SETUP port_clear_altsel1
-#endif
-#if LED_ST_OPENDRAIN
- #define LED_ST_OPENDRAIN_SETUP port_set_open_drain
-#else
- #define LED_ST_OPENDRAIN_SETUP port_clear_open_drain
-#endif
-
-#if LED_ADSL0_DIR
- #define LED_ADSL0_DIR_SETUP port_set_dir_out
-#else
- #define LED_ADSL0_DIR_SETUP port_clear_dir_out
-#endif
-#if LED_ADSL0_ALTSEL0
- #define LED_ADSL0_ALTSEL0_SETUP port_set_altsel0
-#else
- #define LED_ADSL0_ALTSEL0_SETUP port_clear_altsel0
-#endif
-#if LED_ADSL0_ALTSEL1
- #define LED_ADSL0_ALTSEL1_SETUP port_set_altsel1
-#else
- #define LED_ADSL0_ALTSEL1_SETUP port_clear_altsel1
-#endif
-#if LED_ADSL0_OPENDRAIN
- #define LED_ADSL0_OPENDRAIN_SETUP port_set_open_drain
-#else
- #define LED_ADSL0_OPENDRAIN_SETUP port_clear_open_drain
-#endif
-
-#if LED_ADSL1_DIR
- #define LED_ADSL1_DIR_SETUP port_set_dir_out
-#else
- #define LED_ADSL1_DIR_SETUP port_clear_dir_out
-#endif
-#if LED_ADSL1_ALTSEL0
- #define LED_ADSL1_ALTSEL0_SETUP port_set_altsel0
-#else
- #define LED_ADSL1_ALTSEL0_SETUP port_clear_altsel0
-#endif
-#if LED_ADSL1_ALTSEL1
- #define LED_ADSL1_ALTSEL1_SETUP port_set_altsel1
-#else
- #define LED_ADSL1_ALTSEL1_SETUP port_clear_altsel1
-#endif
-#if LED_ADSL1_OPENDRAIN
- #define LED_ADSL1_OPENDRAIN_SETUP port_set_open_drain
-#else
- #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 u32*)(DANUBE_LED + 0x0000))
-#define DANUBE_LED_CON1 ((volatile u32*)(DANUBE_LED + 0x0004))
-#define DANUBE_LED_CPU0 ((volatile u32*)(DANUBE_LED + 0x0008))
-#define DANUBE_LED_CPU1 ((volatile u32*)(DANUBE_LED + 0x000C))
-#define DANUBE_LED_AR ((volatile u32*)(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
-
-
-/*
- * ####################################
- * Preparation of Debug on Amazon Chip
- * ####################################
- */
-
-/*
- * 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
-
-
-/*
- * ####################################
- * Declaration
- * ####################################
- */
-
-/*
- * 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 u32 set_update_source(u32, unsigned long, unsigned long);
-static inline u32 set_blink_in_batch(u32, unsigned long, unsigned long);
-static inline u32 set_data_clock_edge(u32, unsigned long);
-static inline u32 set_update_clock(u32, unsigned long, unsigned long);
-static inline u32 set_store_mode(u32, unsigned long);
-static inline u32 set_shift_clock(u32, unsigned long);
-static inline u32 set_data_offset(u32, unsigned long);
-static inline u32 set_number_of_enabled_led(u32, unsigned long);
-static inline u32 set_data_in_batch(u32, unsigned long, unsigned long);
-static inline u32 set_access_right(u32, 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);
-
-
-/*
- * ####################################
- * Local Variable
- * ####################################
- */
-
-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;
-
-static unsigned long adsl_on = 0;
-static unsigned long f_led_on = 0;
-
-static int module_id;
-
-
-/*
- * ####################################
- * Global Variable
- * ####################################
- */
-
-
-/*
- * ####################################
- * Local Function
- * ####################################
- */
-
-static int led_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+void
+danube_led_set (unsigned int led)
{
- int ret = -EINVAL;
- struct led_config_param param;
-
- switch ( cmd )
- {
- case LED_CONFIG:
- copy_from_user(¶m, (char*)arg, sizeof(param));
- ret = danube_led_config(¶m);
- break;
- }
-
- return ret;
+ led &= 0xffffff;
+ writel(readl(DANUBE_LED_CPU0) | led, DANUBE_LED_CPU0);
}
+EXPORT_SYMBOL(danube_led_set);
-static int led_open(struct inode *inode, struct file *file)
+void
+danube_led_clear (unsigned int led)
{
- return 0;
+ led = ~(led & 0xffffff);
+ writel(readl(DANUBE_LED_CPU0) & led, DANUBE_LED_CPU0);
}
+EXPORT_SYMBOL(danube_led_clear);
-static int led_release(struct inode *inode, struct file *file)
+void
+danube_led_blink_set (unsigned int led)
{
- return 0;
+ led &= 0xffffff;
+ writel(readl(DANUBE_LED_CON0) | led, DANUBE_LED_CON0);
}
+EXPORT_SYMBOL(danube_led_blink_set);
-/*
- * Description:
- * Update LEDs with data stored in register.
- * Input:
- * none
- * Output:
- * int --- 0: Success
- * else: Error Code
- */
-static inline int update_led(void)
+void
+danube_led_blink_clear (unsigned int led)
{
- int i, j;
-
- /*
- * GPT2 or FPID is the clock to update LEDs automatically.
- */
- if ( LED_CON1_US != 0 )
- return 0;
-
- /*
- * Check the status to prevent conflict of two consecutive update
- */
- for ( i = 100000; i != 0; i -= j / 16 )
- {
- down(&led_sem);
- if ( !LED_CON0_SWU )
- {
- *DANUBE_LED_CON0 |= 1 << 31;
- up(&led_sem);
- return 0;
- }
- else
- up(&led_sem);
- for ( j = 0; j < 1000 * 16; j++ );
- }
-
- return -EBUSY;
+ led = ~(led & 0xffffff);
+ writel(readl(DANUBE_LED_CON0) & led, DANUBE_LED_CON0);
}
+EXPORT_SYMBOL(danube_led_blink_clear);
-/*
- * Description:
- * Select update source for LED bit 0 and bit 1.
- * Input:
- * reg --- u32, the original register value going to be modified.
- * led --- unsigned long, bit 0 stands for LED 0, and bit 1 stands for
- * LED 1. If the bit is set, the source value is valid, else
- * the source value is invalid.
- * source --- unsigned long, bit 0 stands for LED 0, and bit 1 stands for
- * LED 1. If the corresponding is cleared, LED is updated with
- * value in data register, else LED is updated with ARC module.
- * Output:
- * u32 --- The updated register value.
- */
-static inline u32 set_update_source(u32 reg, unsigned long led, unsigned long source)
+void
+danube_led_setup_gpio (void)
{
- return (reg & ~((led & 0x03) << 24)) | ((source & 0x03) << 24);
-}
+ int i = 0;
-/*
- * Description:
- * Define which of the LEDs should change their value based on the US pulse.
- * Input:
- * reg --- u32, the original register value going to be modified.
- * mask --- unsigned long, if the corresponding bit is set, the blink value
- * is valid, else the blink value is invalid.
- * blink --- unsigned long, if the corresponding bit is set, the LED should
- * change its value based on the US pulse.
- * Output:
- * u32 --- The updated register value.
- */
-static inline u32 set_blink_in_batch(u32 reg, unsigned long mask, unsigned long blink)
-{
- return (reg & (~(mask & 0x00FFFFFF) & 0x87FFFFFF)) | (blink & 0x00FFFFFF);
+ /* we need to setup pins SH,D,ST (4,5,6) */
+ for (i = 4; i < 7; i++)
+ {
+ danube_port_set_altsel0(DANUBE_LED_GPIO_PORT, i);
+ danube_port_clear_altsel1(DANUBE_LED_GPIO_PORT, i);
+ danube_port_set_dir_out(DANUBE_LED_GPIO_PORT, i);
+ danube_port_set_open_drain(DANUBE_LED_GPIO_PORT, i);
+ }
}
-static inline u32 set_data_clock_edge(u32 reg, unsigned long f_on_rising_edge)
+static int
+led_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
- return f_on_rising_edge ? (reg & ~(1 << 26)) : (reg | (1 << 26));
-}
+ int ret = -EINVAL;
-/*
- * Description:
- * Select the clock source for US pulse.
- * Input:
- * reg --- u32, the original register value going to be modified.
- * clock --- unsigned long, there 3 available values:
- * 0x00 - use software update bit (SWU) as source.
- * 0x01 - use GPT2 as clock source.
- * 0x02 - use FPI as clock source.
- * fpid --- unsigned long, if FPI is selected as clock source, this field
- * specify the divider. Please refer to specification for detail
- * description.
- * Output:
- * u32 --- The updated register value.
- */
-static inline u32 set_update_clock(u32 reg, unsigned long clock, unsigned long fpid)
-{
- switch ( clock )
- {
- case 0: reg &= ~0xC0000000; break;
- case 1: reg = (reg & ~0xC0000000) | 0x40000000; break;
- case 2: reg = (reg & ~0xCF800000) | 0x80000000 | ((fpid & 0x1F) << 23); break;
- }
- return reg;
-}
+ switch ( cmd )
+ {
+ }
-/*
- * Description:
- * Set the behavior of the LED_ST (shift register) signal.
- * Input:
- * reg --- u32, the original register value going to be modified.
- * mode --- unsigned long, there 2 available values:
- * zero - LED controller generate single pulse.
- * non-zero - LED controller generate inverted shift clock.
- * Output:
- * u32 --- The updated register value.
- */
-static inline u32 set_store_mode(u32 reg, unsigned long mode)
-{
- return mode ? (reg | (1 << 28)) : (reg & ~(1 << 28));
+ return ret;
}
-/*
- * Description:
- * Select the clock source for shift clock LED_SH.
- * Input:
- * reg --- u32, the original register value going to be modified.
- * fpis --- unsigned long, if FPI is selected as clock source, this field
- * specify the divider. Please refer to specification for detail
- * description.
- * Output:
- * u32 --- The updated register value.
- */
-static inline u32 set_shift_clock(u32 reg, unsigned long fpis)
+static int
+led_open (struct inode *inode, struct file *file)
{
- return SET_BITS(reg, 21, 20, fpis);
+ return 0;
}
-/*
- * Description:
- * Set the clock cycle offset before data is transmitted to LED_D pin.
- * Input:
- * reg --- u32, the original register value going to be modified.
- * offset --- unsigned long, the number of clock cycles would be inserted
- * before data is transmitted to LED_D pin. Zero means no cycle
- * inserted.
- * Output:
- * u32 --- The updated register value.
- */
-static inline u32 set_data_offset(u32 reg, unsigned long offset)
-{
- return SET_BITS(reg, 19, 18, offset);
-}
-
-/*
- * Description:
- * Enable or disable LEDs.
- * Input:
- * reg --- u32, the original register value going to be modified.
- * number --- unsigned long, the number of LED to be enabled. This field
- * could 0, 8, 16 or 24. Zero means disable all LEDs.
- * Output:
- * u32 --- The updated register value.
- */
-static inline u32 set_number_of_enabled_led(u32 reg, unsigned long number)
-{
- u32 bit_mask;
-
- bit_mask = number > 16 ? 0x07 : (number > 8 ? 0x03 : (number ? 0x01 : 0x00));
- return (reg & ~0x07) | bit_mask;
-}
-
-/*
- * Description:
- * Turn on/off LEDs.
- * Input:
- * reg --- u32, the original register value going to be modified.
- * mask --- unsigned long, if the corresponding bit is set, the data value
- * is valid, else the data value is invalid.
- * data --- unsigned long, if the corresponding bit is set, the LED should
- * be on, else be off.
- * Output:
- * u32 --- The updated register value.
- */
-static inline u32 set_data_in_batch(u32 reg, unsigned long mask, unsigned long data)
-{
- return (reg & ~(mask & 0x00FFFFFF)) | (data & 0x00FFFFFF);
-}
-
-static inline u32 set_access_right(u32 reg, unsigned long mask, unsigned long ar)
-{
- return (reg & ~(mask & 0x00FFFFFF)) | (~ar & mask);
-}
-
-/*
- * Description:
- * Enable LED control module.
- * Input:
- * none
- * Output:
- * none
- */
-static inline void enable_led(void)
-{
-#if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON
- /* Activate LED module in PMU. */
- int i = 1000000;
-
- *(unsigned long *)0xBF10201C &= ~(1 << 11);
- while ( --i && (*(unsigned long *)0xBF102020 & (1 << 11)) );
- if ( !i )
- panic("Activating LED in PMU failed!");
-#endif
-}
-
-/*
- * Description:
- * Disable LED control module.
- * Input:
- * none
- * Output:
- * none
- */
-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
-}
-
-/*
- * Description:
- * If LEDs are enabled, GPIO must be setup to enable LED pins.
- * Input:
- * none
- * Output:
- * int --- 0: Success
- * else: Error Code
- */
-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.
- */
- if ( adsl )
- {
- ret |= port_reserve_pin(LED_ADSL0_PORT, LED_ADSL0_PIN, module_id);
- ret |= port_reserve_pin(LED_ADSL1_PORT, LED_ADSL1_PIN, module_id);
- }
- else
- {
- ret |= port_reserve_pin(LED_ST_PORT, LED_ST_PIN, module_id);
- ret |= port_reserve_pin(LED_D_PORT, LED_D_PIN, module_id);
- ret |= port_reserve_pin(LED_SH_PORT, LED_SH_PIN, module_id);
- }
- if ( ret )
- {
- release_gpio_port(adsl);
- return ret; // Should be -EBUSY
- }
-
- if ( adsl )
- {
- LED_ADSL0_ALTSEL0_SETUP(LED_ADSL0_PORT, LED_ADSL0_PIN, module_id);
- LED_ADSL0_ALTSEL1_SETUP(LED_ADSL0_PORT, LED_ADSL0_PIN, module_id);
- LED_ADSL0_DIR_SETUP(LED_ADSL0_PORT, LED_ADSL0_PIN, module_id);
- LED_ADSL0_OPENDRAIN_SETUP(LED_ADSL0_PORT, LED_ADSL0_PIN, module_id);
-
- LED_ADSL1_ALTSEL0_SETUP(LED_ADSL1_PORT, LED_ADSL1_PIN, module_id);
- LED_ADSL1_ALTSEL1_SETUP(LED_ADSL1_PORT, LED_ADSL1_PIN, module_id);
- LED_ADSL1_DIR_SETUP(LED_ADSL1_PORT, LED_ADSL1_PIN, module_id);
- LED_ADSL1_OPENDRAIN_SETUP(LED_ADSL1_PORT, LED_ADSL1_PIN, module_id);
- }
- else
- {
- /*
- * Set LED_ST
- * I don't check the return value, because I'm sure the value is valid
- * and the pins are reserved already.
- */
- LED_ST_ALTSEL0_SETUP(LED_ST_PORT, LED_ST_PIN, module_id);
- LED_ST_ALTSEL1_SETUP(LED_ST_PORT, LED_ST_PIN, module_id);
- LED_ST_DIR_SETUP(LED_ST_PORT, LED_ST_PIN, module_id);
- LED_ST_OPENDRAIN_SETUP(LED_ST_PORT, LED_ST_PIN, module_id);
-
- /*
- * Set LED_D
- */
- LED_D_ALTSEL0_SETUP(LED_D_PORT, LED_D_PIN, module_id);
- LED_D_ALTSEL1_SETUP(LED_D_PORT, LED_D_PIN, module_id);
- LED_D_DIR_SETUP(LED_D_PORT, LED_D_PIN, module_id);
- LED_D_OPENDRAIN_SETUP(LED_D_PORT, LED_D_PIN, module_id);
-
- /*
- * Set LED_SH
- */
- LED_SH_ALTSEL0_SETUP(LED_SH_PORT, LED_SH_PIN, module_id);
- LED_SH_ALTSEL1_SETUP(LED_SH_PORT, LED_SH_PIN, module_id);
- 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;
-}
-
-/*
- * Description:
- * If LEDs are all disabled, GPIO must be released so that other application
- * could reuse it.
- * Input:
- * none
- * Output:
- * none
- */
-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);
- port_free_pin(LED_ADSL1_PORT, LED_ADSL1_PIN, module_id);
- }
- else
- {
- port_free_pin(LED_ST_PORT, LED_ST_PIN, module_id);
- port_free_pin(LED_D_PORT, LED_D_PIN, module_id);
- port_free_pin(LED_SH_PORT, LED_SH_PIN, module_id);
- }
- #endif
-#endif
-}
-
-/*
- * Description:
- * If shifter or update select GPT as clock source, this function would be
- * invoked to setup corresponding GPT module.
- * Attention please, this function is not working since the GPTU driver is
- * not ready.
- * Input:
- * timer --- int, index of timer.
- * freq --- unsigned long, frequency of timer (0.001Hz). This value will be
- * rounded off to nearest possible value.
- * Output:
- * int --- 0: Success
- * else: Error Code
- */
-static inline int setup_gpt(int timer, unsigned long freq)
-{
- int ret;
-
-#if 0
- timer = TIMER(timer, 0);
-#else
- timer = TIMER(timer, 1); // 2B
-#endif
-
-#if 0
- ret = set_timer(timer, freq, 1, 0, TIMER_FLAG_NO_HANDLE, 0, 0);
-#else
- ret = request_timer(timer,
- TIMER_FLAG_SYNC
- | TIMER_FLAG_16BIT
- | TIMER_FLAG_INT_SRC
- | TIMER_FLAG_CYCLIC | TIMER_FLAG_COUNTER | TIMER_FLAG_DOWN
- | TIMER_FLAG_ANY_EDGE
- | TIMER_FLAG_NO_HANDLE,
- 8000000 / freq,
- 0,
- 0);
-
-#endif
-// printk("setup_gpt: timer = %d, freq = %d, return = %d\n", timer, freq, ret);
- if ( !ret )
- {
- ret = start_timer(timer, 0);
- if ( ret )
- free_timer(timer);
- }
-
- return ret;
-}
-
-/*
- * Description:
- * If shifter or update select other clock source, allocated GPT must be
- * released so that other application can use it.
- * Attention please, this function is not working since the GPTU driver is
- * not ready.
- * Input:
- * none
- * Output:
- * none
- */
-static inline void release_gpt(int timer)
-{
-#if 0
- timer = TIMER(timer, 0);
-#else
- timer = TIMER(timer, 1);
-#endif
- stop_timer(timer);
- free_timer(timer);
-}
-
-static inline int turn_on_led(unsigned long adsl)
-{
- int ret;
-
- ret = setup_gpio_port(adsl);
- if ( ret )
- return ret;
-
- enable_led();
-
- return 0;
-}
-
-static inline void turn_off_led(unsigned long adsl)
-{
- release_gpio_port(adsl);
- disable_led();
-}
-
-
-/*
- * ####################################
- * Global Function
- * ####################################
- */
-
-/*
- * Description:
- * Define which of the LEDs should change its value based on the US pulse.
- * Input:
- * led --- unsigned int, index of the LED to be set.
- * blink --- unsigned int, zero means normal mode, and non-zero means blink
- * mode.
- * Output:
- * int --- 0: Success
- * else: Error Code
- */
-int danube_led_set_blink(unsigned int led, unsigned int blink)
+static int
+led_release (struct inode *inode, struct file *file)
{
- u32 bit_mask;
-
- if ( led > 23 )
- return -EINVAL;
-
- bit_mask = 1 << led;
- down(&led_sem);
- if ( blink )
- *DANUBE_LED_CON0 |= bit_mask;
- else
- *DANUBE_LED_CON0 &= ~bit_mask;
- up(&led_sem);
-
- return (led == 0 && LED_CON0_AD0) || (led == 1 && LED_CON0_AD1) ? -EINVAL : 0;
+ return 0;
}
-/*
- * Description:
- * Turn on/off LED.
- * Input:
- * led --- unsigned int, index of the LED to be set.
- * data --- unsigned int, zero means off, and non-zero means on.
- * Output:
- * int --- 0: Success
- * else: Error Code
- */
-int danube_led_set_data(unsigned int led, unsigned int data)
-{
- unsigned long f_update;
- u32 bit_mask;
-
- if ( led > 23 )
- return -EINVAL;
-
- bit_mask = 1 << led;
- down(&led_sem);
- if ( data )
- *DANUBE_LED_CPU0 |= bit_mask;
- else
- *DANUBE_LED_CPU0 &= ~bit_mask;
- f_update = !(*DANUBE_LED_AR & bit_mask);
- up(&led_sem);
+static struct file_operations danube_led_fops = {
+ .owner = THIS_MODULE,
+ .ioctl = led_ioctl,
+ .open = led_open,
+ .release = led_release
+};
- return f_update ? update_led() : 0;
-}
/*
- * Description:
- * Config LED controller.
- * Input:
- * param --- struct led_config_param*, the members are listed below:
- * operation_mask - Select operations to be performed
- * led - LED to change update source
- * source - Corresponding update source
- * blink_mask - LEDs to set blink mode
- * blink - Set to blink mode or normal mode
- * update_clock - Select the source of update clock
- * fpid - If FPI is the source of update clock, set the divider
- * store_mode - Set clock mode or single pulse mode for store signal
- * fpis - If FPI is the source of shift clock, set the divider
- * data_offset - Set cycles to be inserted before data is transmitted
- * number_of_enabled_led - Total number of LED to be enabled
- * data_mask - LEDs to set value
- * data - Corresponding value
- * mips0_access_mask - LEDs to set access right
- * mips0_access; - 1: the corresponding data is output from MIPS0, 0: MIPS1
- * f_data_clock_on_rising - 1: data clock on rising edge, 0: data clock on falling edge
- * Output:
- * int --- 0: Success
- * else: Error Code
- */
-int danube_led_config(struct led_config_param* param)
-{
- int ret;
- u32 reg_con0, reg_con1, reg_cpu0, reg_ar;
- u32 clean_reg_con0, clean_reg_con1, clean_reg_cpu0, clean_reg_ar;
- u32 f_setup_gpt2;
- u32 f_software_update;
- u32 new_led_on, new_adsl_on;
-
- if ( !param )
- return -EINVAL;
-
- down(&led_sem);
-
- reg_con0 = *DANUBE_LED_CON0;
- reg_con1 = *DANUBE_LED_CON1;
- reg_cpu0 = *DANUBE_LED_CPU0;
- reg_ar = *DANUBE_LED_AR;
-
- clean_reg_con0 = 1;
- clean_reg_con1 = 1;
- clean_reg_cpu0 = 1;
- clean_reg_ar = 1;
-
- f_setup_gpt2 = 0;
-
- f_software_update = LED_CON0_SWU ? 0 : 1;
-
- new_led_on = f_led_on;
- new_adsl_on = adsl_on;
-
- /* ADSL or LED */
- if ( (param->operation_mask & CONFIG_OPERATION_UPDATE_SOURCE) )
- {
- if ( param->led > 0x03 || param->source > 0x03 )
- goto INVALID_PARAM;
- clean_reg_con0 = 0;
- reg_con0 = set_update_source(reg_con0, param->led, param->source);
-#if 0 // ADSL0,1 is source for bit 0, 1 in shift register
- new_adsl_on = param->source;
-#endif
- }
-
- /* Blink */
- if ( (param->operation_mask & CONFIG_OPERATION_BLINK) )
- {
- if ( (param->blink_mask & 0xFF000000) || (param->blink & 0xFF000000) )
- goto INVALID_PARAM;
- clean_reg_con0 = 0;
- reg_con0 = set_blink_in_batch(reg_con0, param->blink_mask, param->blink);
- }
+Map for LED on reference board
+ WLAN_READ LED11 OUT1 15
+ WARNING LED12 OUT2 14
+ FXS1_LINK LED13 OUT3 13
+ FXS2_LINK LED14 OUT4 12
+ FXO_ACT LED15 OUT5 11
+ USB_LINK LED16 OUT6 10
+ ADSL2_LINK LED19 OUT7 9
+ BT_LINK LED17 OUT8 8
+ SD_LINK LED20 OUT9 7
+ ADSL2_TRAFFIC LED31 OUT16 0
+Map for hardware relay on reference board
+ USB Power On OUT11 5
+ RELAY OUT12 4
+*/
- /* Edge */
- if ( (param->operation_mask & CONFIG_DATA_CLOCK_EDGE) )
- {
- clean_reg_con0 = 0;
- reg_con0 = set_data_clock_edge(reg_con0, param->f_data_clock_on_rising);
- }
- /* Update Clock */
- if ( (param->operation_mask & CONFIG_OPERATION_UPDATE_CLOCK) )
- {
- if ( param->update_clock > 0x02 || (param->update_clock == 0x02 && param->fpid > 0x3) )
- goto INVALID_PARAM;
- clean_reg_con1 = 0;
- f_software_update = param->update_clock == 0 ? 1 : 0;
- if ( param->update_clock == 0x01 )
- f_setup_gpt2 = 1;
- reg_con1 = set_update_clock(reg_con1, param->update_clock, param->fpid);
- }
-
- /* Store Mode */
- if ( (param->operation_mask & CONFIG_OPERATION_STORE_MODE) )
- {
- clean_reg_con1 = 0;
- reg_con1 = set_store_mode(reg_con1, param->store_mode);
- }
-
- /* Shift Clock */
- if ( (param->operation_mask & CONFIG_OPERATION_SHIFT_CLOCK) )
- {
- if ( param->fpis > 0x03 )
- goto INVALID_PARAM;
- clean_reg_con1 = 0;
- reg_con1 = set_shift_clock(reg_con1, param->fpis);
- }
-
- /* Data Offset */
- if ( (param->operation_mask & CONFIG_OPERATION_DATA_OFFSET) )
- {
- if ( param->data_offset > 0x03 )
- goto INVALID_PARAM;
- clean_reg_con1 = 0;
- reg_con1 = set_data_offset(reg_con1, param->data_offset);
- }
-
- /* Number of LED */
- if ( (param->operation_mask & CONFIG_OPERATION_NUMBER_OF_LED) )
- {
- if ( param->number_of_enabled_led > 0x24 )
- goto INVALID_PARAM;
-
- /*
- * If there is at lease one LED enabled, the GPIO pin must be setup.
- */
- new_led_on = param->number_of_enabled_led ? 1 : 0;
-
- clean_reg_con1 = 0;
- reg_con1 = set_number_of_enabled_led(reg_con1, param->number_of_enabled_led);
- }
-
- /* LED Data */
- if ( (param->operation_mask & CONFIG_OPERATION_DATA) )
- {
- if ( (param->data_mask & 0xFF000000) || (param->data & 0xFF000000) )
- goto INVALID_PARAM;
- clean_reg_cpu0 = 0;
- reg_cpu0 = set_data_in_batch(reg_cpu0, param->data_mask, param->data);
- if ( f_software_update )
- {
- clean_reg_con0 = 0;
- reg_con0 |= 0x80000000;
- }
- }
-
- /* Access Right */
- if ( (param->operation_mask & CONFIG_OPERATION_MIPS0_ACCESS) )
- {
- if ( (param->mips0_access_mask & 0xFF000000) || (param->mips0_access & 0xFF000000) )
- goto INVALID_PARAM;
- clean_reg_ar = 0;
- reg_ar = set_access_right(reg_ar, param->mips0_access_mask, param->mips0_access);
- }
-
- /* Setup GPT */
- if ( f_setup_gpt2 && !new_adsl_on ) // If ADSL led is on, GPT is disabled.
- {
- ret = 0;
-
- if ( gpt_on )
- {
- if ( gpt_freq != param->fpid )
- {
- release_gpt(2);
- gpt_on = 0;
- ret = setup_gpt(2, param->fpid);
- }
- }
- else
- ret = setup_gpt(2, param->fpid);
-
- if ( ret )
- {
-#if 1
- printk("Setup GPT error!\n");
-#endif
- goto SETUP_GPT_ERROR;
- }
- else
- {
-#if 0
- printk("Setup GPT successfully!\n");
-#endif
- gpt_on = 1;
- }
- }
- else
- if ( gpt_on )
- {
- release_gpt(2);
- gpt_on = 0;
- }
-
- /* Turn on LED */
- if ( new_adsl_on )
- new_led_on = 1;
- if ( !new_led_on || adsl_on != new_adsl_on )
- {
- turn_off_led(adsl_on);
- f_led_on = 0;
- adsl_on = 0;
- }
- if ( !f_led_on && new_led_on )
- {
- ret = turn_on_led(new_adsl_on);
- if ( ret )
- {
-#if 1
- printk("Setup GPIO error!\n");
-#endif
- goto SETUP_GPIO_ERROR;
- }
- adsl_on = new_adsl_on;
- f_led_on = 1;
- }
-
-#if 0
- if ( (reg_con0 & 0x80000000) )
- printk("software update\n");
-#endif
-
- /* Write Register */
- if ( !f_led_on )
- enable_led();
- if ( !clean_reg_ar )
- *DANUBE_LED_AR = reg_ar;
- if ( !clean_reg_cpu0 )
- *DANUBE_LED_CPU0 = reg_cpu0;
- if ( !clean_reg_con1 )
- *DANUBE_LED_CON1 = reg_con1;
- if ( !clean_reg_con0 )
- *DANUBE_LED_CON0 = reg_con0;
- if ( !f_led_on )
- disable_led();
-
-#if defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
- *DANUBE_LED_CON0 &= 0x7FFFFFFF;
-#endif
-
-#if 0
- #if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON
- printk("*0xBF10201C = 0x%08lX\n", *(unsigned long *)0xBF10201C);
- printk("*0xBE100B18 = 0x%08lX\n", *(unsigned long *)0xBE100B18);
- printk("*0xBE100B1C = 0x%08lX\n", *(unsigned long *)0xBE100B1C);
- printk("*0xBE100B20 = 0x%08lX\n", *(unsigned long *)0xBE100B20);
- printk("*0xBE100B24 = 0x%08lX\n", *(unsigned long *)0xBE100B24);
- #endif
- printk("*DANUBE_LED_CON0 = 0x%08X\n", *DANUBE_LED_CON0);
- printk("*DANUBE_LED_CON1 = 0x%08X\n", *DANUBE_LED_CON1);
- printk("*DANUBE_LED_CPU0 = 0x%08X\n", *DANUBE_LED_CPU0);
- printk("*DANUBE_LED_CPU1 = 0x%08X\n", *DANUBE_LED_CPU1);
- printk("*DANUBE_LED_AR = 0x%08X\n", *DANUBE_LED_AR);
-#endif
-
- up(&led_sem);
- return 0;
-
-SETUP_GPIO_ERROR:
- release_gpt(2);
- gpt_on = 0;
-SETUP_GPT_ERROR:
- up(&led_sem);
- return ret;
-
-INVALID_PARAM:
- up(&led_sem);
- return -EINVAL;
-}
-
-
-/*
- * ####################################
- * Init/Cleanup API
- * ####################################
- */
-
-/*
- * Description:
- * register device
- * Input:
- * none
- * Output:
- * 0 --- successful
- * else --- failure, usually it is negative value of error code
- */
-int __init danube_led_init(void)
+int __init
+danube_led_init (void)
{
- int ret;
- struct led_config_param param = {0};
+ int ret = 0;
- enable_led();
+ danube_led_setup_gpio();
- /*
- * 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;
+ writel(0, DANUBE_LED_AR);
+ writel(0, DANUBE_LED_CPU0);
+ writel(0, DANUBE_LED_CPU1);
+ writel(LED_CON0_SWU, DANUBE_LED_CON0);
+ writel(0, DANUBE_LED_CON1);
-#if defined(DEBUG_ON_AMAZON) && DEBUG_ON_AMAZON
- *DANUBE_LED_CON0 &= 0x7FFFFFFF;
-#endif
+ /* setup the clock edge that the shift register is triggered on */
+ writel(readl(DANUBE_LED_CON0) & ~DANUBE_LED_EDGE_MASK, DANUBE_LED_CON0);
+ writel(readl(DANUBE_LED_CON0) | DANUBE_LED_CLK_EDGE, DANUBE_LED_CON0);
- disable_led();
+ /* per default leds 15-0 are set */
+ writel(DANUBE_LED_GROUP1 | DANUBE_LED_GROUP0, DANUBE_LED_CON1);
- sema_init(&led_sem, 0);
+ /* leds are update periodically by the FPID */
+ writel(readl(DANUBE_LED_CON1) & ~DANUBE_LED_UPD_MASK, DANUBE_LED_CON1);
+ writel(readl(DANUBE_LED_CON1) | DANUBE_LED_UPD_SRC_FPI, DANUBE_LED_CON1);
- ret = misc_register(&led_miscdev);
- if ( ret == -EBUSY )
- {
- led_miscdev.minor = MISC_DYNAMIC_MINOR;
- ret = misc_register(&led_miscdev);
- }
- if ( ret )
- {
- printk(KERN_ERR "led: can't misc_register\n");
- return ret;
- }
- else
- printk(KERN_INFO "led: misc_register on minor = %d\n", led_miscdev.minor);
+ /* set led update speed */
+ writel(readl(DANUBE_LED_CON1) & ~DANUBE_LED_MASK, DANUBE_LED_CON1);
+ writel(readl(DANUBE_LED_CON1) | DANUBE_LED_SPEED, DANUBE_LED_CON1);
- module_id = THIS_MODULE ? (int)THIS_MODULE : ((MISC_MAJOR << 8) | led_miscdev.minor);
+ /* adsl 0 and 1 leds are updated by the arc */
+ writel(readl(DANUBE_LED_CON0) | DANUBE_LED_ADSL_SRC, DANUBE_LED_CON0);
- up(&led_sem);
+ /* per default, the leds are turned on */
+ danube_pmu_enable(DANUBE_PMU_PWDCR_LED);
-#if BOARD_TYPE == REFERENCE_BOARD
- /* Add to enable hardware relay */
- /* Map for LED on reference board
- WLAN_READ LED11 OUT1 15
- WARNING LED12 OUT2 14
- FXS1_LINK LED13 OUT3 13
- FXS2_LINK LED14 OUT4 12
- FXO_ACT LED15 OUT5 11
- USB_LINK LED16 OUT6 10
- ADSL2_LINK LED19 OUT7 9
- BT_LINK LED17 OUT8 8
- SD_LINK LED20 OUT9 7
- ADSL2_TRAFFIC LED31 OUT16 0
- Map for hardware relay on reference board
- USB Power On OUT11 5
- RELAY OUT12 4
- */
- param.operation_mask = CONFIG_OPERATION_NUMBER_OF_LED;
- param.number_of_enabled_led = 16;
- danube_led_config(¶m);
- param.operation_mask = CONFIG_OPERATION_DATA;
- param.data_mask = 1 << 4;
- param.data = 1 << 4;
- danube_led_config(¶m);
-#endif
+ danube_led_major = register_chrdev(0, "danube_led", &danube_led_fops);
- // by default, update by FSC clock (FPID)
- param.operation_mask = CONFIG_OPERATION_UPDATE_CLOCK;
- param.update_clock = 2; // FPID
- param.fpid = 3; // 10Hz
- danube_led_config(¶m);
+ if (!danube_led_major)
+ {
+ printk("danube_led: Error! Could not register device. %d\n", danube_led_major);
+ ret = -EINVAL;
- // source of LED 0, 1 is ADSL
- param.operation_mask = CONFIG_OPERATION_UPDATE_SOURCE;
- param.led = 3; // LED 0, 1
- param.source = 3; // ADSL
- danube_led_config(¶m);
+ goto out;
+ }
- // turn on USB
- param.operation_mask = CONFIG_OPERATION_DATA;
- param.data_mask = 1 << 5;
- param.data = 1 << 5;
- danube_led_config(¶m);
+ printk(KERN_INFO "danube_led : device registered on major %d\n", danube_led_major);
- return 0;
+out:
+ return ret;
}
-/*
- * Description:
- * deregister device
- * Input:
- * none
- * Output:
- * none
- */
-void __exit danube_led_exit(void)
+void __exit
+danube_led_exit (void)
{
- int ret;
-
- ret = misc_deregister(&led_miscdev);
- if ( ret )
- printk(KERN_ERR "led: can't misc_deregister, get error number %d\n", -ret);
- else
- printk(KERN_INFO "led: misc_deregister successfully\n");
+ unregister_chrdev(danube_led_major, "danube_led");
}
-EXPORT_SYMBOL(danube_led_set_blink);
-EXPORT_SYMBOL(danube_led_set_data);
-EXPORT_SYMBOL(danube_led_config);
-
module_init(danube_led_init);
module_exit(danube_led_exit);
-
projects / openwrt.git / blobdiff