From: H Hartley Sweeten Date: Thu, 26 Sep 2013 18:40:15 +0000 (-0700) Subject: staging: comedi: 8253.h: tidy up the i8253_cascade_ns_to_timer*() users X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=cb9cfd7ed3f6ed4c40167b4251cdb382b6b3ba1c;p=linux-beck.git staging: comedi: 8253.h: tidy up the i8253_cascade_ns_to_timer*() users Introduce a couple defines for the common 8254 oscillator base values used in the comedi drivers and remove the custom defines and open coded values. Change the i8253_cascade_ns_to_timer_2div() calls in the drivers to the more generic i8253_cascade_ns_to_timer(). They are identical due to the #define in the 8253.h header. Remove the extra mask by TRIG_ROUND_MASK of the 'round_mode' parameter to i8253_cascade_ns_to_timer(). That function already handles the mask. Tidy up all the calls to i8253_cascade_ns_to_timer(). Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/8253.h b/drivers/staging/comedi/drivers/8253.h index 3abedcd2527b..e3d737cf7302 100644 --- a/drivers/staging/comedi/drivers/8253.h +++ b/drivers/staging/comedi/drivers/8253.h @@ -21,6 +21,15 @@ #include "../comedi.h" +/* + * Common oscillator base values in nanoseconds + */ +#define I8254_OSC_BASE_10MHZ 100 +#define I8254_OSC_BASE_5MHZ 200 +#define I8254_OSC_BASE_4MHZ 250 +#define I8254_OSC_BASE_2MHZ 500 +#define I8254_OSC_BASE_1MHZ 1000 + #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, diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c index 89ca5078e8b3..4db46f0f315e 100644 --- a/drivers/staging/comedi/drivers/adl_pci9111.c +++ b/drivers/staging/comedi/drivers/adl_pci9111.c @@ -86,8 +86,6 @@ TODO: #define PCI9111_AI_INSTANT_READ_UDELAY_US 2 #define PCI9111_AI_INSTANT_READ_TIMEOUT 100 -#define PCI9111_8254_CLOCK_PERIOD_NS 500 - /* * IO address map and bit defines */ @@ -393,11 +391,10 @@ static int pci9111_ai_do_cmd_test(struct comedi_device *dev, if (cmd->convert_src == TRIG_TIMER) { tmp = cmd->convert_arg; - i8253_cascade_ns_to_timer_2div(PCI9111_8254_CLOCK_PERIOD_NS, - &dev_private->div1, - &dev_private->div2, - &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ, + &dev_private->div1, + &dev_private->div2, + &cmd->convert_arg, cmd->flags); if (tmp != cmd->convert_arg) error++; } diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c index f50dbea67240..bd5c8bbad090 100644 --- a/drivers/staging/comedi/drivers/adl_pci9118.c +++ b/drivers/staging/comedi/drivers/adl_pci9118.c @@ -792,7 +792,8 @@ static void pci9118_calc_divisors(char mode, struct comedi_device *dev, case 4: if (*tim2 < this_board->ai_ns_min) *tim2 = this_board->ai_ns_min; - i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, div1, div2, + i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, + div1, div2, tim2, flags & TRIG_ROUND_NEAREST); break; case 2: @@ -1277,9 +1278,9 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, if (cmd->scan_begin_src == TRIG_TIMER) { tmp = cmd->scan_begin_arg; - i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1, - &divisor2, &cmd->scan_begin_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, + &divisor1, &divisor2, + &cmd->scan_begin_arg, cmd->flags); if (cmd->scan_begin_arg < this_board->ai_ns_min) cmd->scan_begin_arg = this_board->ai_ns_min; if (tmp != cmd->scan_begin_arg) @@ -1288,9 +1289,9 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev, if (cmd->convert_src & (TRIG_TIMER | TRIG_NOW)) { tmp = cmd->convert_arg; - i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1, - &divisor2, &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, + &divisor1, &divisor2, + &cmd->convert_arg, cmd->flags); if (cmd->convert_arg < this_board->ai_ns_min) cmd->convert_arg = this_board->ai_ns_min; if (tmp != cmd->convert_arg) @@ -2086,7 +2087,7 @@ static int pci9118_common_attach(struct comedi_device *dev, int disable_irq, s->insn_bits = pci9118_insn_bits_do; devpriv->valid = 1; - devpriv->i8254_osc_base = 250; /* 250ns=4MHz */ + devpriv->i8254_osc_base = I8254_OSC_BASE_4MHZ; devpriv->ai_maskharderr = 0x10a; /* default measure crash condition */ if (hw_err_mask) /* disable some requested */ diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c index 3dacfaeca4cb..49b39ec22708 100644 --- a/drivers/staging/comedi/drivers/adv_pci1710.c +++ b/drivers/staging/comedi/drivers/adv_pci1710.c @@ -1005,9 +1005,10 @@ static int pci171x_ai_docmd_and_mode(int mode, struct comedi_device *dev, } else { devpriv->ai_et = 0; } - i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1, - &divisor2, &devpriv->ai_timer1, - devpriv->ai_flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, + &divisor1, &divisor2, + &devpriv->ai_timer1, + devpriv->ai_flags); outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL); if (mode != 2) { /* start pacer */ @@ -1086,9 +1087,9 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev, if (cmd->convert_src == TRIG_TIMER) { tmp = cmd->convert_arg; - i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1, - &divisor2, &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, + &divisor1, &divisor2, + &cmd->convert_arg, cmd->flags); if (cmd->convert_arg < this_board->ai_ns_min) cmd->convert_arg = this_board->ai_ns_min; if (tmp != cmd->convert_arg) @@ -1284,7 +1285,7 @@ static int pci1710_auto_attach(struct comedi_device *dev, s->do_cmdtest = pci171x_ai_cmdtest; s->do_cmd = pci171x_ai_cmd; } - devpriv->i8254_osc_base = 100; /* 100ns=10MHz */ + devpriv->i8254_osc_base = I8254_OSC_BASE_10MHZ; subdev++; } diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c index 179de53a86f0..cf385b8e32bf 100644 --- a/drivers/staging/comedi/drivers/amplc_pci224.c +++ b/drivers/staging/comedi/drivers/amplc_pci224.c @@ -215,12 +215,6 @@ Caveats: #define CLK_EXT 7 /* external clock */ /* Macro to construct clock input configuration register value. */ #define CLK_CONFIG(chan, src) ((((chan) & 3) << 3) | ((src) & 7)) -/* Timebases in ns. */ -#define TIMEBASE_10MHZ 100 -#define TIMEBASE_1MHZ 1000 -#define TIMEBASE_100KHZ 10000 -#define TIMEBASE_10KHZ 100000 -#define TIMEBASE_1KHZ 1000000 /* * Counter/timer gate input configuration sources. @@ -843,26 +837,26 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, switch (round_mode) { case TRIG_ROUND_NEAREST: default: - round = TIMEBASE_10MHZ / 2; + round = I8254_OSC_BASE_10MHZ / 2; break; case TRIG_ROUND_DOWN: round = 0; break; case TRIG_ROUND_UP: - round = TIMEBASE_10MHZ - 1; + round = I8254_OSC_BASE_10MHZ - 1; break; } /* Be careful to avoid overflow! */ - div2 = cmd->scan_begin_arg / TIMEBASE_10MHZ; - div2 += (round + cmd->scan_begin_arg % TIMEBASE_10MHZ) / - TIMEBASE_10MHZ; + div2 = cmd->scan_begin_arg / I8254_OSC_BASE_10MHZ; + div2 += (round + cmd->scan_begin_arg % I8254_OSC_BASE_10MHZ) / + I8254_OSC_BASE_10MHZ; if (div2 <= 0x10000) { /* A single timer will suffice. */ if (div2 < 2) div2 = 2; - cmd->scan_begin_arg = div2 * TIMEBASE_10MHZ; + cmd->scan_begin_arg = div2 * I8254_OSC_BASE_10MHZ; if (cmd->scan_begin_arg < div2 || - cmd->scan_begin_arg < TIMEBASE_10MHZ) { + cmd->scan_begin_arg < I8254_OSC_BASE_10MHZ) { /* Overflow! */ cmd->scan_begin_arg = MAX_SCAN_PERIOD; } @@ -870,7 +864,8 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, /* Use two timers. */ div1 = devpriv->cached_div1; div2 = devpriv->cached_div2; - pci224_cascade_ns_to_timer(TIMEBASE_10MHZ, &div1, &div2, + pci224_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &div1, &div2, &cmd->scan_begin_arg, round_mode); devpriv->cached_div1 = div1; @@ -1002,19 +997,19 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) switch (round_mode) { case TRIG_ROUND_NEAREST: default: - round = TIMEBASE_10MHZ / 2; + round = I8254_OSC_BASE_10MHZ / 2; break; case TRIG_ROUND_DOWN: round = 0; break; case TRIG_ROUND_UP: - round = TIMEBASE_10MHZ - 1; + round = I8254_OSC_BASE_10MHZ - 1; break; } /* Be careful to avoid overflow! */ - div2 = cmd->scan_begin_arg / TIMEBASE_10MHZ; - div2 += (round + cmd->scan_begin_arg % TIMEBASE_10MHZ) / - TIMEBASE_10MHZ; + div2 = cmd->scan_begin_arg / I8254_OSC_BASE_10MHZ; + div2 += (round + cmd->scan_begin_arg % I8254_OSC_BASE_10MHZ) / + I8254_OSC_BASE_10MHZ; if (div2 <= 0x10000) { /* A single timer will suffice. */ if (div2 < 2) @@ -1025,7 +1020,8 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) /* Use two timers. */ div1 = devpriv->cached_div1; div2 = devpriv->cached_div2; - pci224_cascade_ns_to_timer(TIMEBASE_10MHZ, &div1, &div2, + pci224_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &div1, &div2, &ns, round_mode); } diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c index 3e072955ea79..64d5f291553f 100644 --- a/drivers/staging/comedi/drivers/cb_das16_cs.c +++ b/drivers/staging/comedi/drivers/cb_das16_cs.c @@ -234,9 +234,9 @@ static int das16cs_ai_cmdtest(struct comedi_device *dev, unsigned int div1 = 0, div2 = 0; tmp = cmd->scan_begin_arg; - i8253_cascade_ns_to_timer(100, &div1, &div2, - &cmd->scan_begin_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &div1, &div2, + &cmd->scan_begin_arg, cmd->flags); if (tmp != cmd->scan_begin_arg) err++; } @@ -244,9 +244,9 @@ static int das16cs_ai_cmdtest(struct comedi_device *dev, unsigned int div1 = 0, div2 = 0; tmp = cmd->convert_arg; - i8253_cascade_ns_to_timer(100, &div1, &div2, - &cmd->scan_begin_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &div1, &div2, + &cmd->scan_begin_arg, cmd->flags); if (tmp != cmd->convert_arg) err++; if (cmd->scan_begin_src == TRIG_TIMER && diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index 41d89ee7fa33..0891659f9eb5 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -73,7 +73,6 @@ analog triggering on 1602 series #include "amcc_s5933.h" #include "comedi_fc.h" -#define TIMER_BASE 100 /* 10MHz master clock */ #define AI_BUFFER_SIZE 1024 /* max ai fifo size */ #define AO_BUFFER_SIZE 1024 /* max ao fifo size */ #define NUM_CHANNELS_8800 8 @@ -880,21 +879,19 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, if (cmd->scan_begin_src == TRIG_TIMER) { tmp = cmd->scan_begin_arg; - i8253_cascade_ns_to_timer_2div(TIMER_BASE, - &(devpriv->divisor1), - &(devpriv->divisor2), - &(cmd->scan_begin_arg), - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->scan_begin_arg, cmd->flags); if (tmp != cmd->scan_begin_arg) err++; } if (cmd->convert_src == TRIG_TIMER) { tmp = cmd->convert_arg; - i8253_cascade_ns_to_timer_2div(TIMER_BASE, - &(devpriv->divisor1), - &(devpriv->divisor2), - &(cmd->convert_arg), - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->convert_arg, cmd->flags); if (tmp != cmd->convert_arg) err++; } @@ -932,9 +929,9 @@ static void cb_pcidas_load_counters(struct comedi_device *dev, unsigned int *ns, { struct cb_pcidas_private *devpriv = dev->private; - i8253_cascade_ns_to_timer_2div(TIMER_BASE, &(devpriv->divisor1), - &(devpriv->divisor2), ns, - rounding_flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &devpriv->divisor1, &devpriv->divisor2, + ns, rounding_flags); /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ i8254_load(devpriv->pacer_counter_dio + ADC8254, 0, 1, @@ -1084,11 +1081,10 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, if (cmd->scan_begin_src == TRIG_TIMER) { tmp = cmd->scan_begin_arg; - i8253_cascade_ns_to_timer_2div(TIMER_BASE, - &(devpriv->ao_divisor1), - &(devpriv->ao_divisor2), - &(cmd->scan_begin_arg), - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &devpriv->ao_divisor1, + &devpriv->ao_divisor2, + &cmd->scan_begin_arg, cmd->flags); if (tmp != cmd->scan_begin_arg) err++; } @@ -1209,11 +1205,10 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev, /* load counters */ if (cmd->scan_begin_src == TRIG_TIMER) { - i8253_cascade_ns_to_timer_2div(TIMER_BASE, - &(devpriv->ao_divisor1), - &(devpriv->ao_divisor2), - &(cmd->scan_begin_arg), - cmd->flags); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &devpriv->ao_divisor1, + &devpriv->ao_divisor2, + &cmd->scan_begin_arg, cmd->flags); /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ i8254_load(devpriv->pacer_counter_dio + DAC8254, 0, 1, diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c index fc058f8e8702..30f3995d7297 100644 --- a/drivers/staging/comedi/drivers/das16.c +++ b/drivers/staging/comedi/drivers/das16.c @@ -675,21 +675,19 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, if (cmd->scan_begin_src == TRIG_TIMER) { unsigned int tmp = cmd->scan_begin_arg; /* set divisors, correct timing arguments */ - i8253_cascade_ns_to_timer_2div(devpriv->clockbase, - &devpriv->divisor1, - &devpriv->divisor2, - &cmd->scan_begin_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(devpriv->clockbase, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->scan_begin_arg, cmd->flags); err += (tmp != cmd->scan_begin_arg); } if (cmd->convert_src == TRIG_TIMER) { unsigned int tmp = cmd->convert_arg; /* set divisors, correct timing arguments */ - i8253_cascade_ns_to_timer_2div(devpriv->clockbase, - &devpriv->divisor1, - &devpriv->divisor2, - &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(devpriv->clockbase, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->convert_arg, cmd->flags); err += (tmp != cmd->convert_arg); } if (err) @@ -725,11 +723,9 @@ static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns, struct das16_private_struct *devpriv = dev->private; unsigned long timer_base = dev->iobase + DAS16_TIMER_BASE_REG; - i8253_cascade_ns_to_timer_2div(devpriv->clockbase, - &devpriv->divisor1, - &devpriv->divisor2, - &ns, - rounding_flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(devpriv->clockbase, + &devpriv->divisor1, &devpriv->divisor2, + &ns, rounding_flags); /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ i8254_load(timer_base, 0, 1, devpriv->divisor1, 2); @@ -1036,14 +1032,15 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) status = inb(dev->iobase + DAS1600_STATUS_REG); if (status & DAS1600_STATUS_CLK_10MHZ) - devpriv->clockbase = 100; + devpriv->clockbase = I8254_OSC_BASE_10MHZ; else - devpriv->clockbase = 1000; + devpriv->clockbase = I8254_OSC_BASE_1MHZ; } else { if (it->options[3]) - devpriv->clockbase = 1000 / it->options[3]; + devpriv->clockbase = I8254_OSC_BASE_1MHZ / + it->options[3]; else - devpriv->clockbase = 1000; /* 1 MHz default */ + devpriv->clockbase = I8254_OSC_BASE_1MHZ; } /* initialize dma */ diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c index 187b0a1c378b..579b74e471d9 100644 --- a/drivers/staging/comedi/drivers/das16m1.c +++ b/drivers/staging/comedi/drivers/das16m1.c @@ -63,8 +63,6 @@ irq can be omitted, although the cmd interface will not work without it. #define DAS16M1_SIZE 16 #define DAS16M1_SIZE2 8 -#define DAS16M1_XTAL 100 /* 10 MHz master clock */ - #define FIFO_SIZE 1024 /* 1024 sample fifo */ /* @@ -207,11 +205,10 @@ static int das16m1_cmd_test(struct comedi_device *dev, if (cmd->convert_src == TRIG_TIMER) { tmp = cmd->convert_arg; /* calculate counter values that give desired timing */ - i8253_cascade_ns_to_timer_2div(DAS16M1_XTAL, - &(devpriv->divisor1), - &(devpriv->divisor2), - &(cmd->convert_arg), - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->convert_arg, cmd->flags); if (tmp != cmd->convert_arg) err++; } @@ -250,9 +247,10 @@ static unsigned int das16m1_set_pacer(struct comedi_device *dev, { struct das16m1_private_struct *devpriv = dev->private; - i8253_cascade_ns_to_timer_2div(DAS16M1_XTAL, &(devpriv->divisor1), - &(devpriv->divisor2), &ns, - rounding_flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer_2div(I8254_OSC_BASE_10MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &ns, rounding_flags); /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ i8254_load(dev->iobase + DAS16M1_8254_SECOND, 0, 1, devpriv->divisor1, diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 8b9a0a66b5a5..f753a10c6549 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -108,7 +108,6 @@ TODO: /* misc. defines */ #define DAS1800_SIZE 16 /* uses 16 io addresses */ #define FIFO_SIZE 1024 /* 1024 sample fifo */ -#define TIMER_BASE 200 /* 5 Mhz master clock */ #define UNIPOLAR 0x4 /* bit that determines whether input range is uni/bipolar */ #define DMA_BUF_SIZE 0x1ff00 /* size in bytes of dma buffers */ @@ -839,12 +838,11 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev, if (cmd->scan_begin_src == TRIG_FOLLOW) { tmp_arg = cmd->convert_arg; /* calculate counter values that give desired timing */ - i8253_cascade_ns_to_timer_2div(TIMER_BASE, - &(devpriv->divisor1), - &(devpriv->divisor2), - &(cmd->convert_arg), - cmd-> - flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->convert_arg, + cmd->flags); if (tmp_arg != cmd->convert_arg) err++; } @@ -869,16 +867,11 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev, } tmp_arg = cmd->scan_begin_arg; /* calculate counter values that give desired timing */ - i8253_cascade_ns_to_timer_2div(TIMER_BASE, - &(devpriv-> - divisor1), - &(devpriv-> - divisor2), - &(cmd-> - scan_begin_arg), - cmd-> - flags & - TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->scan_begin_arg, + cmd->flags); if (tmp_arg != cmd->scan_begin_arg) err++; } @@ -1010,12 +1003,10 @@ static int setup_counters(struct comedi_device *dev, if (cmd->convert_src == TRIG_TIMER) { /* set conversion frequency */ period = cmd->convert_arg; - i8253_cascade_ns_to_timer_2div(TIMER_BASE, - &devpriv->divisor1, - &devpriv->divisor2, - &period, - cmd->flags & - TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &period, cmd->flags); if (das1800_set_frequency(dev) < 0) return -1; } @@ -1023,9 +1014,10 @@ static int setup_counters(struct comedi_device *dev, case TRIG_TIMER: /* in burst mode */ /* set scan frequency */ period = cmd->scan_begin_arg; - i8253_cascade_ns_to_timer_2div(TIMER_BASE, &devpriv->divisor1, - &devpriv->divisor2, &period, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &period, cmd->flags); if (das1800_set_frequency(dev) < 0) return -1; break; diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c index b80dd0362ffc..5af0a5764a8c 100644 --- a/drivers/staging/comedi/drivers/das800.c +++ b/drivers/staging/comedi/drivers/das800.c @@ -66,7 +66,6 @@ cmd triggers supported: #include "comedi_fc.h" #define DAS800_SIZE 8 -#define TIMER_BASE 1000 #define N_CHAN_AI 8 /* number of analog input channels */ /* Registers for the das800 */ @@ -356,11 +355,10 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev, int tmp = cmd->convert_arg; /* calculate counter values that give desired timing */ - i8253_cascade_ns_to_timer_2div(TIMER_BASE, - &devpriv->divisor1, - &devpriv->divisor2, - &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_1MHZ, + &devpriv->divisor1, + &devpriv->divisor2, + &cmd->convert_arg, cmd->flags); if (tmp != cmd->convert_arg) err++; } diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index 27daccb78f83..e91570dd6b0d 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -73,7 +73,6 @@ #include "ni_labpc_isadma.h" #define LABPC_SIZE 0x20 /* size of ISA io region */ -#define LABPC_TIMER_BASE 500 /* 2 MHz master clock */ #define LABPC_ADC_TIMEOUT 1000 enum scan_mode { @@ -459,13 +458,13 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd, * clock speed on convert and scan counters) */ devpriv->divisor_b0 = (scan_period - 1) / - (LABPC_TIMER_BASE * max_counter_value) + 1; + (I8254_OSC_BASE_2MHZ * max_counter_value) + 1; if (devpriv->divisor_b0 < min_counter_value) devpriv->divisor_b0 = min_counter_value; if (devpriv->divisor_b0 > max_counter_value) devpriv->divisor_b0 = max_counter_value; - base_period = LABPC_TIMER_BASE * devpriv->divisor_b0; + base_period = I8254_OSC_BASE_2MHZ * devpriv->divisor_b0; /* set a0 for conversion frequency and b1 for scan frequency */ switch (cmd->flags & TRIG_ROUND_MASK) { @@ -510,22 +509,20 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd, * calculate cascaded counter values * that give desired scan timing */ - i8253_cascade_ns_to_timer_2div(LABPC_TIMER_BASE, - &(devpriv->divisor_b1), - &(devpriv->divisor_b0), - &scan_period, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ, + &devpriv->divisor_b1, + &devpriv->divisor_b0, + &scan_period, cmd->flags); labpc_set_ai_scan_period(cmd, mode, scan_period); } else if (convert_period) { /* * calculate cascaded counter values * that give desired conversion timing */ - i8253_cascade_ns_to_timer_2div(LABPC_TIMER_BASE, - &(devpriv->divisor_a0), - &(devpriv->divisor_b0), - &convert_period, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ, + &devpriv->divisor_a0, + &devpriv->divisor_b0, + &convert_period, cmd->flags); labpc_set_ai_convert_period(cmd, mode, convert_period); } } diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c index e170f8aeef5f..89982fb52e50 100644 --- a/drivers/staging/comedi/drivers/pcl711.c +++ b/drivers/staging/comedi/drivers/pcl711.c @@ -349,11 +349,11 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev, if (cmd->scan_begin_src == TRIG_TIMER) { tmp = cmd->scan_begin_arg; - i8253_cascade_ns_to_timer(500, /* 2 Mhz */ + i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ, &devpriv->divisor1, &devpriv->divisor2, &cmd->scan_begin_arg, - cmd->flags & TRIG_ROUND_MASK); + cmd->flags); if (tmp != cmd->scan_begin_arg) err++; } diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c index 2b10a95251bd..530aee14f07a 100644 --- a/drivers/staging/comedi/drivers/pcl812.c +++ b/drivers/staging/comedi/drivers/pcl812.c @@ -589,9 +589,9 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, if (cmd->convert_src == TRIG_TIMER) { tmp = cmd->convert_arg; - i8253_cascade_ns_to_timer(board->i8254_osc_base, &divisor1, - &divisor2, &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(board->i8254_osc_base, + &divisor1, &divisor2, + &cmd->convert_arg, cmd->flags); if (cmd->convert_arg < board->ai_ns_min) cmd->convert_arg = board->ai_ns_min; if (tmp != cmd->convert_arg) @@ -637,8 +637,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) cmd->convert_arg = board->ai_ns_min; i8253_cascade_ns_to_timer(board->i8254_osc_base, &divisor1, &divisor2, - &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + &cmd->convert_arg, cmd->flags); } start_pacer(dev, -1, 0, 0); /* stop pacer */ @@ -1440,40 +1439,40 @@ static void pcl812_detach(struct comedi_device *dev) static const struct pcl812_board boardtypes[] = { {"pcl812", boardPCL812, 16, 0, 2, 16, 16, 0x0fff, - 33000, 500, &range_bipolar10, &range_unipolar5, + 33000, I8254_OSC_BASE_2MHZ, &range_bipolar10, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 0}, {"pcl812pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff, - 33000, 500, &range_pcl812pg_ai, &range_unipolar5, + 33000, I8254_OSC_BASE_2MHZ, &range_pcl812pg_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 0}, {"acl8112pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff, - 10000, 500, &range_pcl812pg_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_pcl812pg_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 0}, {"acl8112dg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff, - 10000, 500, &range_acl8112dg_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_acl8112dg_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 1}, {"acl8112hg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff, - 10000, 500, &range_acl8112hg_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_acl8112hg_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 1}, {"a821pgl", boardA821, 16, 8, 1, 16, 16, 0x0fff, - 10000, 500, &range_pcl813b_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_pcl813b_ai, &range_unipolar5, 0x000c, 0x00, PCLx1x_IORANGE, 0}, {"a821pglnda", boardA821, 16, 8, 0, 0, 0, 0x0fff, - 10000, 500, &range_pcl813b_ai, NULL, + 10000, I8254_OSC_BASE_2MHZ, &range_pcl813b_ai, NULL, 0x000c, 0x00, PCLx1x_IORANGE, 0}, {"a821pgh", boardA821, 16, 8, 1, 16, 16, 0x0fff, - 10000, 500, &range_a821pgh_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_a821pgh_ai, &range_unipolar5, 0x000c, 0x00, PCLx1x_IORANGE, 0}, {"a822pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff, - 10000, 500, &range_acl8112dg_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_acl8112dg_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 0}, {"a822pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff, - 10000, 500, &range_acl8112hg_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_acl8112hg_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 0}, {"a823pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff, - 8000, 500, &range_acl8112dg_ai, &range_unipolar5, + 8000, I8254_OSC_BASE_2MHZ, &range_acl8112dg_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 0}, {"a823pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff, - 8000, 500, &range_acl8112hg_ai, &range_unipolar5, + 8000, I8254_OSC_BASE_2MHZ, &range_acl8112hg_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 0}, {"pcl813", boardPCL813, 32, 0, 0, 0, 0, 0x0fff, 0, 0, &range_pcl813b_ai, NULL, @@ -1488,10 +1487,10 @@ static const struct pcl812_board boardtypes[] = { 0, 0, &range_iso813_1_ai, NULL, 0x0000, 0x00, PCLx1x_IORANGE, 0}, {"acl8216", boardACL8216, 16, 8, 2, 16, 16, 0xffff, - 10000, 500, &range_pcl813b2_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_pcl813b2_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 1}, {"a826pg", boardACL8216, 16, 8, 2, 16, 16, 0xffff, - 10000, 500, &range_pcl813b2_ai, &range_unipolar5, + 10000, I8254_OSC_BASE_2MHZ, &range_pcl813b2_ai, &range_unipolar5, 0xdcfc, 0x0a, PCLx1x_IORANGE, 0}, }; diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c index f03134962596..2fd9b178e0c6 100644 --- a/drivers/staging/comedi/drivers/pcl816.c +++ b/drivers/staging/comedi/drivers/pcl816.c @@ -481,8 +481,7 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev, tmp = cmd->convert_arg; i8253_cascade_ns_to_timer(board->i8254_osc_base, &divisor1, &divisor2, - &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + &cmd->convert_arg, cmd->flags); if (cmd->convert_arg < board->ai_ns_min) cmd->convert_arg = board->ai_ns_min; if (tmp != cmd->convert_arg) @@ -528,9 +527,9 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) if (cmd->convert_arg < board->ai_ns_min) cmd->convert_arg = board->ai_ns_min; - i8253_cascade_ns_to_timer(board->i8254_osc_base, &divisor1, - &divisor2, &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(board->i8254_osc_base, + &divisor1, &divisor2, + &cmd->convert_arg, cmd->flags); /* PCL816 crash if any divisor is set to 1 */ if (divisor1 == 1) { @@ -1105,7 +1104,7 @@ static const struct pcl816_board boardtypes[] = { 0xffff, /* D/A maxdata */ 1024, 1, /* ao chan list */ - 100}, + I8254_OSC_BASE_10MHZ}, {"pcl814b", 8, 16, 10000, 1, 16, 16, &range_pcl816, &range_pcl816, PCLx1x_RANGE, 0x00fc, @@ -1114,7 +1113,7 @@ static const struct pcl816_board boardtypes[] = { 0x3fff, 1024, 1, - 100}, + I8254_OSC_BASE_10MHZ}, }; static struct comedi_driver pcl816_driver = { diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c index 33cd4aae884e..7be0c946bd7c 100644 --- a/drivers/staging/comedi/drivers/pcl818.c +++ b/drivers/staging/comedi/drivers/pcl818.c @@ -800,8 +800,9 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev, devpriv->neverending_ai = 1; /* well, user want neverending */ if (mode == 1) { - i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, &divisor1, - &divisor2, &cmd->convert_arg, + i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, + &divisor1, &divisor2, + &cmd->convert_arg, TRIG_ROUND_NEAREST); if (divisor1 == 1) { /* PCL718/818 crash if any divisor is set to 1 */ divisor1 = 2; @@ -1034,9 +1035,9 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, if (cmd->convert_src == TRIG_TIMER) { tmp = cmd->convert_arg; - i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, &divisor1, - &divisor2, &cmd->convert_arg, - cmd->flags & TRIG_ROUND_MASK); + i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, + &divisor1, &divisor2, + &cmd->convert_arg, cmd->flags); if (cmd->convert_arg < board->ns_min) cmd->convert_arg = board->ns_min; if (tmp != cmd->convert_arg) @@ -1432,9 +1433,9 @@ no_dma: /* select 1/10MHz oscilator */ if ((it->options[3] == 0) || (it->options[3] == 10)) - devpriv->i8253_osc_base = 100; + devpriv->i8253_osc_base = I8254_OSC_BASE_10MHZ; else - devpriv->i8253_osc_base = 1000; + devpriv->i8253_osc_base = I8254_OSC_BASE_1MHZ; /* max sampling speed */ devpriv->ns_min = board->ns_min;