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staging: comedi: me4000: remove struct me4000_cnt_context 

The me4000_cnt_contect simply holds the unsigned long i/o addresses
used to read/write the counter registers. Thes can be calculated
as needed. Remove the struct and the associated field in the
private data.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-09-07 17:41:37 -07:00 committed by Greg Kroah-Hartman
parent 9e07273124
commit ba98ab03f7
2 changed files with 22 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
drivers/staging/comedi/drivers/me4000.c
View File

@ -221,7 +221,6 @@ static int init_board_info(struct comedi_device *dev,
static int init_ao_context(struct comedi_device *dev);
static int init_ai_context(struct comedi_device *dev);
static int init_dio_context(struct comedi_device *dev);
static int init_cnt_context(struct comedi_device *dev);
static int xilinx_download(struct comedi_device *dev);
static int reset_board(struct comedi_device *dev);
@ -361,15 +360,6 @@ static int me4000_probe(struct comedi_device *dev, struct comedi_devconfig *it)
return result;
}
/* Init counter context */
result = init_cnt_context(dev);
if (result) {
printk(KERN_ERR
"comedi%d: me4000: me4000_probe(): "
"Cannot init cnt context\n", dev->minor);
return result;
}
/* Download the xilinx firmware */
result = xilinx_download(dev);
if (result) {
@ -599,19 +589,6 @@ static int init_dio_context(struct comedi_device *dev)
return 0;
}
static int init_cnt_context(struct comedi_device *dev)
{
info->cnt_context.ctrl_reg = info->timer_regbase + ME4000_CNT_CTRL_REG;
info->cnt_context.counter_0_reg =
info->timer_regbase + ME4000_CNT_COUNTER_0_REG;
info->cnt_context.counter_1_reg =
info->timer_regbase + ME4000_CNT_COUNTER_1_REG;
info->cnt_context.counter_2_reg =
info->timer_regbase + ME4000_CNT_COUNTER_2_REG;
return 0;
}
#define FIRMWARE_NOT_AVAILABLE 1
#if FIRMWARE_NOT_AVAILABLE
extern unsigned char *xilinx_firm;
@ -1907,19 +1884,19 @@ static int cnt_reset(struct comedi_device *dev, unsigned int channel)
{
switch (channel) {
case 0:
outb(0x30, info->cnt_context.ctrl_reg);
outb(0x00, info->cnt_context.counter_0_reg);
outb(0x00, info->cnt_context.counter_0_reg);
outb(0x30, info->timer_regbase + ME4000_CNT_CTRL_REG);
outb(0x00, info->timer_regbase + ME4000_CNT_COUNTER_0_REG);
outb(0x00, info->timer_regbase + ME4000_CNT_COUNTER_0_REG);
break;
case 1:
outb(0x70, info->cnt_context.ctrl_reg);
outb(0x00, info->cnt_context.counter_1_reg);
outb(0x00, info->cnt_context.counter_1_reg);
outb(0x70, info->timer_regbase + ME4000_CNT_CTRL_REG);
outb(0x00, info->timer_regbase + ME4000_CNT_COUNTER_1_REG);
outb(0x00, info->timer_regbase + ME4000_CNT_COUNTER_1_REG);
break;
case 2:
outb(0xB0, info->cnt_context.ctrl_reg);
outb(0x00, info->cnt_context.counter_2_reg);
outb(0x00, info->cnt_context.counter_2_reg);
outb(0xB0, info->timer_regbase + ME4000_CNT_CTRL_REG);
outb(0x00, info->timer_regbase + ME4000_CNT_COUNTER_2_REG);
outb(0x00, info->timer_regbase + ME4000_CNT_COUNTER_2_REG);
break;
default:
printk(KERN_ERR
@ -1981,7 +1958,7 @@ static int cnt_config(struct comedi_device *dev, unsigned int channel,
/* Write the control word */
tmp |= 0x30;
outb(tmp, info->cnt_context.ctrl_reg);
outb(tmp, info->timer_regbase + ME4000_CNT_CTRL_REG);
return 0;
}
@ -2050,21 +2027,21 @@ static int me4000_cnt_insn_read(struct comedi_device *dev,
switch (insn->chanspec) {
case 0:
tmp = inb(info->cnt_context.counter_0_reg);
tmp = inb(info->timer_regbase + ME4000_CNT_COUNTER_0_REG);
data[0] = tmp;
tmp = inb(info->cnt_context.counter_0_reg);
tmp = inb(info->timer_regbase + ME4000_CNT_COUNTER_0_REG);
data[0] |= tmp << 8;
break;
case 1:
tmp = inb(info->cnt_context.counter_1_reg);
tmp = inb(info->timer_regbase + ME4000_CNT_COUNTER_1_REG);
data[0] = tmp;
tmp = inb(info->cnt_context.counter_1_reg);
tmp = inb(info->timer_regbase + ME4000_CNT_COUNTER_1_REG);
data[0] |= tmp << 8;
break;
case 2:
tmp = inb(info->cnt_context.counter_2_reg);
tmp = inb(info->timer_regbase + ME4000_CNT_COUNTER_2_REG);
data[0] = tmp;
tmp = inb(info->cnt_context.counter_2_reg);
tmp = inb(info->timer_regbase + ME4000_CNT_COUNTER_2_REG);
data[0] |= tmp << 8;
break;
default:
@ -2098,21 +2075,21 @@ static int me4000_cnt_insn_write(struct comedi_device *dev,
switch (insn->chanspec) {
case 0:
tmp = data[0] & 0xFF;
outb(tmp, info->cnt_context.counter_0_reg);
outb(tmp, info->timer_regbase + ME4000_CNT_COUNTER_0_REG);
tmp = (data[0] >> 8) & 0xFF;
outb(tmp, info->cnt_context.counter_0_reg);
outb(tmp, info->timer_regbase + ME4000_CNT_COUNTER_0_REG);
break;
case 1:
tmp = data[0] & 0xFF;
outb(tmp, info->cnt_context.counter_1_reg);
outb(tmp, info->timer_regbase + ME4000_CNT_COUNTER_1_REG);
tmp = (data[0] >> 8) & 0xFF;
outb(tmp, info->cnt_context.counter_1_reg);
outb(tmp, info->timer_regbase + ME4000_CNT_COUNTER_1_REG);
break;
case 2:
tmp = data[0] & 0xFF;
outb(tmp, info->cnt_context.counter_2_reg);
outb(tmp, info->timer_regbase + ME4000_CNT_COUNTER_2_REG);
tmp = (data[0] >> 8) & 0xFF;
outb(tmp, info->cnt_context.counter_2_reg);
outb(tmp, info->timer_regbase + ME4000_CNT_COUNTER_2_REG);
break;
default:
printk(KERN_ERR

8
drivers/staging/comedi/drivers/me4000.h
View File

@ -274,13 +274,6 @@ struct me4000_dio_context {
unsigned long port_3_reg;
};
struct me4000_cnt_context {
unsigned long ctrl_reg;
unsigned long counter_0_reg;
unsigned long counter_1_reg;
unsigned long counter_2_reg;
};
struct me4000_info {
unsigned long plx_regbase; /* PLX configuration space base address */
unsigned long me4000_regbase; /* Base address of the ME4000 */
@ -304,7 +297,6 @@ struct me4000_info {
struct me4000_ai_context ai_context; /* Analog input specific context */
struct me4000_ao_context ao_context[4]; /* Vector with analog output specific context */
struct me4000_dio_context dio_context; /* Digital I/O specific context */
struct me4000_cnt_context cnt_context; /* Counter specific context */
};
#define info ((struct me4000_info *)dev->private)