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-rw-r--r--target/linux/danube/files/drivers/char/danube_led.c435
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 531c7ed0c1..f832fa032e 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;
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-29 11:44:10 +0000