lkml.org 
[lkml]   [2005]   [Oct]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Fwd: Telecom Clock Driver for MPCBL0010 ATCA computer blade
    > --- 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?

    > +#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/

    \
     
     \ /
      Last update: 2005-10-06 19:15    [W:0.031 / U:0.420 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site