diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/8253.h')
| -rw-r--r-- | drivers/staging/comedi/drivers/8253.h | 69 |
1 files changed, 42 insertions, 27 deletions
diff --git a/drivers/staging/comedi/drivers/8253.h b/drivers/staging/comedi/drivers/8253.h index ad467ac290a3..c2ea2d96f1cc 100644 --- a/drivers/staging/comedi/drivers/8253.h +++ b/drivers/staging/comedi/drivers/8253.h @@ -29,8 +29,10 @@ #define i8253_cascade_ns_to_timer i8253_cascade_ns_to_timer_2div static inline void i8253_cascade_ns_to_timer_2div_old(int i8253_osc_base, - unsigned int *d1, unsigned int *d2, unsigned int *nanosec, - int round_mode) + unsigned int *d1, + unsigned int *d2, + unsigned int *nanosec, + int round_mode) { int divider; int div1, div2; @@ -78,8 +80,10 @@ static inline void i8253_cascade_ns_to_timer_2div_old(int i8253_osc_base, } static inline void i8253_cascade_ns_to_timer_power(int i8253_osc_base, - unsigned int *d1, unsigned int *d2, unsigned int *nanosec, - int round_mode) + unsigned int *d1, + unsigned int *d2, + unsigned int *nanosec, + int round_mode) { int div1, div2; int base; @@ -118,8 +122,10 @@ static inline void i8253_cascade_ns_to_timer_power(int i8253_osc_base, } static inline void i8253_cascade_ns_to_timer_2div(int i8253_osc_base, - unsigned int *d1, unsigned int *d2, unsigned int *nanosec, - int round_mode) + unsigned int *d1, + unsigned int *d2, + unsigned int *nanosec, + int round_mode) { unsigned int divider; unsigned int div1, div2; @@ -136,12 +142,11 @@ static inline void i8253_cascade_ns_to_timer_2div(int i8253_osc_base, div2 = *d2 ? *d2 : max_count; divider = div1 * div2; if (div1 * div2 * i8253_osc_base == *nanosec && - div1 > 1 && div1 <= max_count && - div2 > 1 && div2 <= max_count && - /* check for overflow */ - divider > div1 && divider > div2 && - divider * i8253_osc_base > divider && - divider * i8253_osc_base > i8253_osc_base) { + div1 > 1 && div1 <= max_count && div2 > 1 && div2 <= max_count && + /* check for overflow */ + divider > div1 && divider > div2 && + divider * i8253_osc_base > divider && + divider * i8253_osc_base > i8253_osc_base) { return; } @@ -158,10 +163,10 @@ static inline void i8253_cascade_ns_to_timer_2div(int i8253_osc_base, if (start < 2) start = 2; for (div1 = start; div1 <= divider / div1 + 1 && div1 <= max_count; - div1++) { + div1++) { for (div2 = divider / div1; - div1 * div2 <= divider + div1 + 1 && div2 <= max_count; - div2++) { + div1 * div2 <= divider + div1 + 1 && div2 <= max_count; + div2++) { ns = i8253_osc_base * div1 * div2; if (ns <= *nanosec && ns > ns_glb) { ns_glb = ns; @@ -229,7 +234,8 @@ static inline void i8253_cascade_ns_to_timer_2div(int i8253_osc_base, #define i8254_control_reg 3 static inline int i8254_load(unsigned long base_address, unsigned int regshift, - unsigned int counter_number, unsigned int count, unsigned int mode) + unsigned int counter_number, unsigned int count, + unsigned int mode) { unsigned int byte; @@ -255,7 +261,8 @@ static inline int i8254_load(unsigned long base_address, unsigned int regshift, } static inline int i8254_mm_load(void *base_address, unsigned int regshift, - unsigned int counter_number, unsigned int count, unsigned int mode) + unsigned int counter_number, unsigned int count, + unsigned int mode) { unsigned int byte; @@ -282,7 +289,7 @@ static inline int i8254_mm_load(void *base_address, unsigned int regshift, /* Returns 16 bit counter value, should work for 8253 also.*/ static inline int i8254_read(unsigned long base_address, unsigned int regshift, - unsigned int counter_number) + unsigned int counter_number) { unsigned int byte; int ret; @@ -303,7 +310,7 @@ static inline int i8254_read(unsigned long base_address, unsigned int regshift, } static inline int i8254_mm_read(void *base_address, unsigned int regshift, - unsigned int counter_number) + unsigned int counter_number) { unsigned int byte; int ret; @@ -325,7 +332,8 @@ static inline int i8254_mm_read(void *base_address, unsigned int regshift, /* Loads 16 bit initial counter value, should work for 8253 also. */ static inline void i8254_write(unsigned long base_address, - unsigned int regshift, unsigned int counter_number, unsigned int count) + unsigned int regshift, + unsigned int counter_number, unsigned int count) { unsigned int byte; @@ -339,7 +347,9 @@ static inline void i8254_write(unsigned long base_address, } static inline void i8254_mm_write(void *base_address, - unsigned int regshift, unsigned int counter_number, unsigned int count) + unsigned int regshift, + unsigned int counter_number, + unsigned int count) { unsigned int byte; @@ -360,7 +370,8 @@ static inline void i8254_mm_write(void *base_address, * I8254_BCD, I8254_BINARY */ static inline int i8254_set_mode(unsigned long base_address, - unsigned int regshift, unsigned int counter_number, unsigned int mode) + unsigned int regshift, + unsigned int counter_number, unsigned int mode) { unsigned int byte; @@ -378,7 +389,9 @@ static inline int i8254_set_mode(unsigned long base_address, } static inline int i8254_mm_set_mode(void *base_address, - unsigned int regshift, unsigned int counter_number, unsigned int mode) + unsigned int regshift, + unsigned int counter_number, + unsigned int mode) { unsigned int byte; @@ -396,18 +409,20 @@ static inline int i8254_mm_set_mode(void *base_address, } static inline int i8254_status(unsigned long base_address, - unsigned int regshift, unsigned int counter_number) + unsigned int regshift, + unsigned int counter_number) { outb(0xE0 | (2 << counter_number), - base_address + (i8254_control_reg << regshift)); + base_address + (i8254_control_reg << regshift)); return inb(base_address + (counter_number << regshift)); } static inline int i8254_mm_status(void *base_address, - unsigned int regshift, unsigned int counter_number) + unsigned int regshift, + unsigned int counter_number) { writeb(0xE0 | (2 << counter_number), - base_address + (i8254_control_reg << regshift)); + base_address + (i8254_control_reg << regshift)); return readb(base_address + (counter_number << regshift)); } |