diff options
Diffstat (limited to 'target/linux/danube/files/drivers')
| -rw-r--r-- | target/linux/danube/files/drivers/char/danube_led.c | 435 |
1 files changed, 78 insertions, 357 deletions
diff --git a/target/linux/danube/files/drivers/char/danube_led.c b/target/linux/danube/files/drivers/char/danube_led.c index 531c7ed0c..f832fa032 100644 --- a/target/linux/danube/files/drivers/char/danube_led.c +++ b/target/linux/danube/files/drivers/char/danube_led.c @@ -244,11 +244,11 @@ * 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)) +#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 @@ -292,13 +292,6 @@ #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. */ @@ -329,12 +322,6 @@ /* - * #################################### - * Declaration - * #################################### - */ - -/* * File Operations */ static int led_ioctl(struct inode *, struct file *, unsigned int, unsigned long); @@ -349,16 +336,16 @@ 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); +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); +static inline unsigned int set_update_clock(unsigned int, unsigned long, unsigned long); +static inline unsigned int set_store_mode(unsigned int, unsigned long); +static inline unsigned int set_shift_clock(unsigned int, unsigned long); +static inline unsigned int set_data_offset(unsigned int, unsigned long); +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 @@ -385,12 +372,6 @@ 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 = { @@ -418,20 +399,8 @@ 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) +static int +led_ioctl (struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { int ret = -EINVAL; struct led_config_param param; @@ -447,26 +416,20 @@ static int led_ioctl(struct inode *inode, struct file *file, unsigned int cmd, u return ret; } -static int led_open(struct inode *inode, struct file *file) +static int +led_open (struct inode *inode, struct file *file) { return 0; } -static int led_release(struct inode *inode, struct file *file) +static int +led_release (struct inode *inode, struct file *file) { return 0; } -/* - * Description: - * Update LEDs with data stored in register. - * Input: - * none - * Output: - * int --- 0: Success - * else: Error Code - */ -static inline int update_led(void) +static inline int +update_led (void) { int i, j; @@ -496,63 +459,26 @@ static inline int update_led(void) return -EBUSY; } -/* - * 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) +static inline unsigned int +set_update_source (unsigned int reg, unsigned long led, unsigned long source) { return (reg & ~((led & 0x03) << 24)) | ((source & 0x03) << 24); } -/* - * 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) +static inline unsigned int +set_blink_in_batch (unsigned int reg, unsigned long mask, unsigned long blink) { return (reg & (~(mask & 0x00FFFFFF) & 0x87FFFFFF)) | (blink & 0x00FFFFFF); } -static inline u32 set_data_clock_edge(u32 reg, unsigned long f_on_rising_edge) +static inline unsigned int +set_data_clock_edge (unsigned int reg, unsigned long f_on_rising_edge) { return f_on_rising_edge ? (reg & ~(1 << 26)) : (reg | (1 << 26)); } -/* - * 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) +static inline unsigned int +set_update_clock (unsigned int reg, unsigned long clock, unsigned long fpid) { switch ( clock ) { @@ -563,103 +489,47 @@ static inline u32 set_update_clock(u32 reg, unsigned long clock, unsigned long f return reg; } -/* - * 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) +static inline unsigned int +set_store_mode (unsigned int reg, unsigned long mode) { return mode ? (reg | (1 << 28)) : (reg & ~(1 << 28)); } -/* - * 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 inline +unsigned int set_shift_clock (unsigned int reg, unsigned long fpis) { return SET_BITS(reg, 21, 20, fpis); } -/* - * 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) +static inline +unsigned int set_data_offset (unsigned int 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) +static inline +unsigned int set_number_of_enabled_led (unsigned int reg, unsigned long number) { - u32 bit_mask; + unsigned int 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) +static inline unsigned int +set_data_in_batch (unsigned int 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) +static inline unsigned int +set_access_right (unsigned int 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) +static inline void +enable_led (void) { #if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON /* Activate LED module in PMU. */ @@ -672,15 +542,8 @@ static inline void enable_led(void) #endif } -/* - * Description: - * Disable LED control module. - * Input: - * none - * Output: - * none - */ -static inline void disable_led(void) +static inline void +disable_led (void) { #if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON /* Inactivating LED module in PMU. */ @@ -688,16 +551,8 @@ static inline void disable_led(void) #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) +static inline int +setup_gpio_port (unsigned long adsl) { #if !defined(DEBUG_ON_AMAZON) || !DEBUG_ON_AMAZON int ret = 0; @@ -786,16 +641,8 @@ static inline int setup_gpio_port(unsigned long adsl) 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) +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 @@ -814,33 +661,13 @@ static inline void release_gpio_port(unsigned long adsl) #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) +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 + timer = TIMER(timer, 1); -#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 @@ -852,8 +679,6 @@ static inline int setup_gpt(int timer, unsigned long freq) 0, 0); -#endif -// printk("setup_gpt: timer = %d, freq = %d, return = %d\n", timer, freq, ret); if ( !ret ) { ret = start_timer(timer, 0); @@ -864,29 +689,16 @@ static inline int setup_gpt(int timer, unsigned long freq) 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) +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) +static inline int +turn_on_led (unsigned long adsl) { int ret; @@ -899,33 +711,18 @@ static inline int turn_on_led(unsigned long adsl) return 0; } -static inline void turn_off_led(unsigned long adsl) +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) +int +danube_led_set_blink (unsigned int led, unsigned int blink) { - u32 bit_mask; + unsigned int bit_mask; if ( led > 23 ) return -EINVAL; @@ -941,20 +738,11 @@ int danube_led_set_blink(unsigned int led, unsigned int blink) return (led == 0 && LED_CON0_AD0) || (led == 1 && LED_CON0_AD1) ? -EINVAL : 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) +int +danube_led_set_data (unsigned int led, unsigned int data) { unsigned long f_update; - u32 bit_mask; + unsigned int bit_mask; if ( led > 23 ) return -EINVAL; @@ -971,39 +759,15 @@ int danube_led_set_data(unsigned int led, unsigned int data) 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 +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; + unsigned int reg_con0, reg_con1, reg_cpu0, reg_ar; + unsigned int clean_reg_con0, clean_reg_con1, clean_reg_cpu0, clean_reg_ar; + unsigned int f_setup_gpt2; + unsigned int f_software_update; + unsigned int new_led_on, new_adsl_on; if ( !param ) return -EINVAL; @@ -1183,20 +947,13 @@ int danube_led_config(struct led_config_param* param) 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(); @@ -1215,21 +972,6 @@ int danube_led_config(struct led_config_param* param) *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; @@ -1246,22 +988,8 @@ INVALID_PARAM: } -/* - * #################################### - * 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}; @@ -1350,15 +1078,8 @@ int __init danube_led_init(void) return 0; } -/* - * Description: - * deregister device - * Input: - * none - * Output: - * none - */ -void __exit danube_led_exit(void) +void __exit +danube_led_exit (void) { int ret; |