lkml.org 
[lkml]   [2005]   [Oct]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: Fwd: Telecom Clock Driver for MPCBL0010 ATCA computer blade
Date
On Thursday 06 October 2005 10:24, Alexey Dobriyan wrote:
> > --- linux-2.6.14-rc2-mm2/drivers/char/tlclk.c
> > +++ linux-2.6.14-rc2-mm2-tlclk/drivers/char/tlclk.c
>
> Can you drop ioctl part of interface and leave only sysfs one?
>

I would like to keep if for a little while because the hardware validation
guys are still using test harnesses written for the 2.4 kernel driver
version. However; I am willing to pull this block if that would help in
getting this driver into the kernel.

--mgross


> > +#ifdef TLCLK_IOCTL
> > +static int
> > +tlclk_ioctl(struct inode *inode,
> > + struct file *filp, unsigned int cmd, unsigned long arg)
> > +{
> > + unsigned long flags;
> > + unsigned char val;
> > + int ret_val = 0;
> > +
> > + val = (unsigned char)arg;
> > + if (_IOC_TYPE(cmd) != TLCLK_IOC_MAGIC)
> > + return -ENOTTY;
> > +
> > + if (_IOC_NR(cmd) > TLCLK_IOC_MAXNR)
> > + return -ENOTTY;
> > +
> > + spin_lock_irqsave(&event_lock, flags);
> > + switch (cmd) {
> > + case IOCTL_RESET:
> > + SET_PORT_BITS(TLCLK_REG4, 0xfd, val);
> > + break;
> > + case IOCTL_MODE_SELECT:
> > + SET_PORT_BITS(TLCLK_REG0, 0xcf, val);
> > + break;
> > + case IOCTL_REFALIGN:
> > + /* GENERATING 0 to 1 transistion */
> > + SET_PORT_BITS(TLCLK_REG0, 0xf7, 0);
> > + udelay(2);
> > + SET_PORT_BITS(TLCLK_REG0, 0xf7, 0x08);
> > + udelay(2);
> > + SET_PORT_BITS(TLCLK_REG0, 0xf7, 0);
> > + break;
> > + case IOCTL_HARDWARE_SWITCHING:
> > + SET_PORT_BITS(TLCLK_REG0, 0x7f, val);
> > + break;
> > + case IOCTL_HARDWARE_SWITCHING_MODE:
> > + SET_PORT_BITS(TLCLK_REG0, 0xbf, val);
> > + break;
> > + case IOCTL_FILTER_SELECT:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfb, val);
> > + break;
> > + case IOCTL_SELECT_REF_FREQUENCY:
> > + SET_PORT_BITS(TLCLK_REG1, 0xfd, val);
> > + break;
> > + case IOCTL_SELECT_REDUNDANT_CLOCK:
> > + SET_PORT_BITS(TLCLK_REG1, 0xfe, val);
> > + break;
> > + case IOCTL_SELECT_AMCB1_TRANSMIT_CLOCK:
> > + if ((val == CLK_8kHz) || (val == CLK_16_384MHz)) {
> > + SET_PORT_BITS(TLCLK_REG3, 0xf8, 0x5);
> > + SET_PORT_BITS(TLCLK_REG1, 0xfb, ~val);
> > + } else if (val >= CLK_8_592MHz) {
> > + SET_PORT_BITS(TLCLK_REG3, 0xf8, 0x7);
> > + switch (val) {
> > + case CLK_8_592MHz:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfc, 1);
> > + break;
> > + case CLK_11_184MHz:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfc, 0);
> > + break;
> > + case CLK_34_368MHz:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfc, 3);
> > + break;
> > + case CLK_44_736MHz:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfc, 2);
> > + break;
> > + }
> > + } else
> > + SET_PORT_BITS(TLCLK_REG3, 0xf8, val);
> > + break;
> > + case IOCTL_SELECT_AMCB2_TRANSMIT_CLOCK:
> > + if ((val == CLK_8kHz) || (val == CLK_16_384MHz)) {
> > + SET_PORT_BITS(TLCLK_REG3, 0xc7, 0x28);
> > + SET_PORT_BITS(TLCLK_REG1, 0xfb, ~val);
> > + } else if (val >= CLK_8_592MHz) {
> > + SET_PORT_BITS(TLCLK_REG3, 0xc7, 0x38);
> > + switch (val) {
> > + case CLK_8_592MHz:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfc, 1);
> > + break;
> > + case CLK_11_184MHz:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfc, 0);
> > + break;
> > + case CLK_34_368MHz:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfc, 3);
> > + break;
> > + case CLK_44_736MHz:
> > + SET_PORT_BITS(TLCLK_REG0, 0xfc, 2);
> > + break;
> > + }
> > + } else
> > + SET_PORT_BITS(TLCLK_REG3, 0xc7, val << 3);
> > + break;
> > + case IOCTL_TEST_MODE:
> > + SET_PORT_BITS(TLCLK_REG4, 0xfd, 2);
> > + break;
> > + case IOCTL_ENABLE_CLKA0_OUTPUT:
> > + SET_PORT_BITS(TLCLK_REG2, 0xfe, val);
> > + break;
> > + case IOCTL_ENABLE_CLKB0_OUTPUT:
> > + SET_PORT_BITS(TLCLK_REG2, 0xfd, val << 1);
> > + break;
> > + case IOCTL_ENABLE_CLKA1_OUTPUT:
> > + SET_PORT_BITS(TLCLK_REG2, 0xfb, val << 2);
> > + break;
> > + case IOCTL_ENABLE_CLKB1_OUTPUT:
> > + SET_PORT_BITS(TLCLK_REG2, 0xf7, val << 3);
> > + break;
> > + case IOCTL_ENABLE_CLK3A_OUTPUT:
> > + SET_PORT_BITS(TLCLK_REG3, 0xbf, val << 6);
> > + break;
> > + case IOCTL_ENABLE_CLK3B_OUTPUT:
> > + SET_PORT_BITS(TLCLK_REG3, 0x7f, val << 7);
> > + break;
> > + case IOCTL_READ_ALARMS:
> > + ret_val = (inb(TLCLK_REG2) & 0xf0);
> > + break;
> > + case IOCTL_READ_INTERRUPT_SWITCH:
> > + ret_val = inb(TLCLK_REG6);
> > + break;
> > + case IOCTL_READ_CURRENT_REF:
> > + ret_val = ((inb(TLCLK_REG1) & 0x08) >> 3);
> > + break;
> > + }
> > + spin_unlock_irqrestore(&event_lock, flags);
> > +
> > + return ret_val;
> > +}
> > +#endif
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>

--
--mgross
BTW: This may or may not be the opinion of my employer, more likely not.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-10-06 19:37    [W:0.322 / U:0.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site