ixj.c

linux和2410结合开发 用他可以生成2410所需的zImage文件

				}
				if (j->flags.ringback) {
					ixj_ringback(j);
					if (j->dsp.low == 0x20) {
						clear_bit(board, &j->busyflags);
						ixj_add_timer(j);
						return;
					}
				}
				if (!j->tone_state) {
					ixj_cpt_stop(j);
				}
			}
		}
		if (!(j->tone_state && j->dsp.low == 0x20)) {
			if (IsRxReady(j)) {
				ixj_read_frame(j);
			}
			if (IsTxReady(j)) {
				ixj_write_frame(j);
			}
		}
		if (j->flags.cringing) {
			if (j->hookstate & 1) {
				j->flags.cringing = 0;
				ixj_ring_off(j);
			} else if(j->cadence_f[5].enable && ((!j->cadence_f[5].en_filter) || (j->cadence_f[5].en_filter && j->flags.firstring))) {
				switch(j->cadence_f[5].state) {
					case 0:
						j->cadence_f[5].on1dot = jiffies + (long)((j->cadence_f[5].on1 * (hertz * 100) / 10000));
						if (time_before(jiffies, j->cadence_f[5].on1dot)) {
							if(ixjdebug & 0x0004) {
								printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
							}
							ixj_ring_on(j);
						}
						j->cadence_f[5].state = 1;
						break;
					case 1:
						if (time_after(jiffies, j->cadence_f[5].on1dot)) {
							j->cadence_f[5].off1dot = jiffies + (long)((j->cadence_f[5].off1 * (hertz * 100) / 10000));
							if(ixjdebug & 0x0004) {
								printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
							}
							ixj_ring_off(j);
							j->cadence_f[5].state = 2;
						}
						break;
					case 2:
						if (time_after(jiffies, j->cadence_f[5].off1dot)) {
							if(ixjdebug & 0x0004) {
								printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
							}
							ixj_ring_on(j);
							if (j->cadence_f[5].on2) {
								j->cadence_f[5].on2dot = jiffies + (long)((j->cadence_f[5].on2 * (hertz * 100) / 10000));
								j->cadence_f[5].state = 3;
							} else {
								j->cadence_f[5].state = 7;
							}
						}
						break;
					case 3:
						if (time_after(jiffies, j->cadence_f[5].on2dot)) {
							if(ixjdebug & 0x0004) {
								printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
							}
							ixj_ring_off(j);
							if (j->cadence_f[5].off2) {
								j->cadence_f[5].off2dot = jiffies + (long)((j->cadence_f[5].off2 * (hertz * 100) / 10000));
								j->cadence_f[5].state = 4;
							} else {
								j->cadence_f[5].state = 7;
							}
						}
						break;
					case 4:
						if (time_after(jiffies, j->cadence_f[5].off2dot)) {
							if(ixjdebug & 0x0004) {
								printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
							}
							ixj_ring_on(j);
							if (j->cadence_f[5].on3) {
								j->cadence_f[5].on3dot = jiffies + (long)((j->cadence_f[5].on3 * (hertz * 100) / 10000));
								j->cadence_f[5].state = 5;
							} else {
								j->cadence_f[5].state = 7;
							}
						}
						break;
					case 5:
						if (time_after(jiffies, j->cadence_f[5].on3dot)) {
							if(ixjdebug & 0x0004) {
								printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
							}
							ixj_ring_off(j);
							if (j->cadence_f[5].off3) {
								j->cadence_f[5].off3dot = jiffies + (long)((j->cadence_f[5].off3 * (hertz * 100) / 10000));
								j->cadence_f[5].state = 6;
							} else {
								j->cadence_f[5].state = 7;
							}
						}
						break;
					case 6:
						if (time_after(jiffies, j->cadence_f[5].off3dot)) {
							if(ixjdebug & 0x0004) {
								printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
							}
							j->cadence_f[5].state = 7;
						}
						break;
					case 7:
						if(ixjdebug & 0x0004) {
							printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
						}
						j->flags.cidring = 1;
						j->cadence_f[5].state = 0;
						break;
				}
				if (j->flags.cidring && !j->flags.cidsent) {
					j->flags.cidsent = 1;
					if(j->fskdcnt) {
						SLIC_SetState(PLD_SLIC_STATE_OHT, j);
						ixj_pre_cid(j);
					}
					j->flags.cidring = 0;
				}
				clear_bit(board, &j->busyflags);
				ixj_add_timer(j);
				return;
			} else {
				if (time_after(jiffies, j->ring_cadence_jif + (hertz / 2))) {
					if (j->flags.cidring && !j->flags.cidsent) {
						j->flags.cidsent = 1;
						if(j->fskdcnt) {
							SLIC_SetState(PLD_SLIC_STATE_OHT, j);
							ixj_pre_cid(j);
						}
						j->flags.cidring = 0;
					}
					j->ring_cadence_t--;
					if (j->ring_cadence_t == -1)
						j->ring_cadence_t = 15;
					j->ring_cadence_jif = jiffies;

					if (j->ring_cadence & 1 << j->ring_cadence_t) {
						if(j->flags.cidsent && j->cadence_f[5].en_filter)
							j->flags.firstring = 1;
						else
							ixj_ring_on(j);
					} else {
						ixj_ring_off(j);
						if(!j->flags.cidsent)
							j->flags.cidring = 1;
					}
				}
				clear_bit(board, &j->busyflags);
				ixj_add_timer(j);
				return;
			}
		}
		if (!j->flags.ringing) {
			if (j->hookstate) { /* & 1) { */
				if (j->dsp.low != 0x20 &&
				    SLIC_GetState(j) != PLD_SLIC_STATE_ACTIVE) {
					SLIC_SetState(PLD_SLIC_STATE_ACTIVE, j);
				}
				LineMonitor(j);
				read_filters(j);
				ixj_WriteDSPCommand(0x511B, j);
				j->proc_load = j->ssr.high << 8 | j->ssr.low;
				if (!j->m_hook && (j->hookstate & 1)) {
					j->m_hook = j->ex.bits.hookstate = 1;
					ixj_kill_fasync(j, SIG_HOOKSTATE, POLL_IN);
				}
			} else {
				if (j->ex.bits.dtmf_ready) {
					j->dtmf_wp = j->dtmf_rp = j->ex.bits.dtmf_ready = 0;
				}
				if (j->m_hook) {
					j->m_hook = 0;
					j->ex.bits.hookstate = 1;
					ixj_kill_fasync(j, SIG_HOOKSTATE, POLL_IN);
				}
			}
		}
		if (j->cardtype == QTI_LINEJACK && !j->flags.pstncheck && j->flags.pstn_present) {
			ixj_pstn_state(j);
		}
		if (j->ex.bytes) {
			wake_up_interruptible(&j->poll_q);	/* Wake any blocked selects */
		}
		clear_bit(board, &j->busyflags);
	}
	ixj_add_timer(j);
}

static int ixj_status_wait(IXJ *j)
{
	unsigned long jif;

	jif = jiffies + ((60 * hertz) / 100);
	while (!IsStatusReady(j)) {
		ixj_perfmon(j->statuswait);
		if (time_after(jiffies, jif)) {
			ixj_perfmon(j->statuswaitfail);
			return -1;
		}
	}
	return 0;
}

static int ixj_PCcontrol_wait(IXJ *j)
{
	unsigned long jif;

	jif = jiffies + ((60 * hertz) / 100);
	while (!IsPCControlReady(j)) {
		ixj_perfmon(j->pcontrolwait);
		if (time_after(jiffies, jif)) {
			ixj_perfmon(j->pcontrolwaitfail);
			return -1;
		}
	}
	return 0;
}

static int ixj_WriteDSPCommand(unsigned short cmd, IXJ *j)
{
	BYTES bytes;
	unsigned long jif;

	atomic_inc(&j->DSPWrite);
	if(atomic_read(&j->DSPWrite) > 1) {
		printk("IXJ %d DSP write overlap attempting command 0x%4.4x\n", j->board, cmd);
		return -1;
	}
	bytes.high = (cmd & 0xFF00) >> 8;
	bytes.low = cmd & 0x00FF;
	jif = jiffies + ((60 * hertz) / 100);
	while (!IsControlReady(j)) {
		ixj_perfmon(j->iscontrolready);
		if (time_after(jiffies, jif)) {
			ixj_perfmon(j->iscontrolreadyfail);
			atomic_dec(&j->DSPWrite);
			if(atomic_read(&j->DSPWrite) > 0) {
				printk("IXJ %d DSP overlaped command 0x%4.4x during control ready failure.\n", j->board, cmd);
				while(atomic_read(&j->DSPWrite) > 0) {
					atomic_dec(&j->DSPWrite);
				}
			}
			return -1;
		}
	}
	outb(bytes.low, j->DSPbase + 6);
	outb(bytes.high, j->DSPbase + 7);

	if (ixj_status_wait(j)) {
		j->ssr.low = 0xFF;
		j->ssr.high = 0xFF;
		atomic_dec(&j->DSPWrite);
		if(atomic_read(&j->DSPWrite) > 0) {
			printk("IXJ %d DSP overlaped command 0x%4.4x during status wait failure.\n", j->board, cmd);
			while(atomic_read(&j->DSPWrite) > 0) {
				atomic_dec(&j->DSPWrite);
			}
		}
		return -1;
	}
/* Read Software Status Register */
	j->ssr.low = inb_p(j->DSPbase + 2);
	j->ssr.high = inb_p(j->DSPbase + 3);
	atomic_dec(&j->DSPWrite);
	if(atomic_read(&j->DSPWrite) > 0) {
		printk("IXJ %d DSP overlaped command 0x%4.4x\n", j->board, cmd);
		while(atomic_read(&j->DSPWrite) > 0) {
			atomic_dec(&j->DSPWrite);
		}
	}
	return 0;
}

/***************************************************************************
*
*  General Purpose IO Register read routine
*
***************************************************************************/
static inline int ixj_gpio_read(IXJ *j)
{
	if (ixj_WriteDSPCommand(0x5143, j))
		return -1;

	j->gpio.bytes.low = j->ssr.low;
	j->gpio.bytes.high = j->ssr.high;

	return 0;
}

static inline void LED_SetState(int state, IXJ *j)
{
	if (j->cardtype == QTI_LINEJACK) {
		j->pld_scrw.bits.led1 = state & 0x1 ? 1 : 0;
		j->pld_scrw.bits.led2 = state & 0x2 ? 1 : 0;
		j->pld_scrw.bits.led3 = state & 0x4 ? 1 : 0;
		j->pld_scrw.bits.led4 = state & 0x8 ? 1 : 0;

		outb(j->pld_scrw.byte, j->XILINXbase);
	}
}

/*********************************************************************
*  GPIO Pins are configured as follows on the Quicknet Internet
*  PhoneJACK Telephony Cards
* 
* POTS Select        GPIO_6=0 GPIO_7=0
* Mic/Speaker Select GPIO_6=0 GPIO_7=1
* Handset Select     GPIO_6=1 GPIO_7=0
*
* SLIC Active        GPIO_1=0 GPIO_2=1 GPIO_5=0
* SLIC Ringing       GPIO_1=1 GPIO_2=1 GPIO_5=0
* SLIC Open Circuit  GPIO_1=0 GPIO_2=0 GPIO_5=0
*
* Hook Switch changes reported on GPIO_3
*********************************************************************/
static int ixj_set_port(IXJ *j, int arg)
{
	if (j->cardtype == QTI_PHONEJACK_LITE) {
		if (arg != PORT_POTS)
			return 10;
		else
			return 0;
	}
	switch (arg) {
	case PORT_POTS:
		j->port = PORT_POTS;
		switch (j->cardtype) {
		case QTI_PHONECARD:
			if (j->flags.pcmciasct == 1)
				SLIC_SetState(PLD_SLIC_STATE_ACTIVE, j);
			else
				return 11;
			break;
		case QTI_PHONEJACK_PCI:
			j->pld_slicw.pcib.mic = 0;
			j->pld_slicw.pcib.spk = 0;
			outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
			break;
		case QTI_LINEJACK:
			ixj_set_pots(j, 0);			/* Disconnect POTS/PSTN relay */
			if (ixj_WriteDSPCommand(0xC528, j))		/* Write CODEC config to
									   Software Control Register */
				return 2;
			j->pld_scrw.bits.daafsyncen = 0;	/* Turn off DAA Frame Sync */

			outb(j->pld_scrw.byte, j->XILINXbase);
			j->pld_clock.byte = 0;
			outb(j->pld_clock.byte, j->XILINXbase + 0x04);
			j->pld_slicw.bits.rly1 = 1;
			j->pld_slicw.bits.spken = 0;
			outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
			ixj_mixer(0x1200, j);	/* Turn Off MIC switch on mixer left */
			ixj_mixer(0x1401, j);	/* Turn On Mono1 switch on mixer left */
			ixj_mixer(0x1300, j);       /* Turn Off MIC switch on mixer right */
			ixj_mixer(0x1501, j);       /* Turn On Mono1 switch on mixer right */
			ixj_mixer(0x0E80, j);	/*Mic mute */
			ixj_mixer(0x0F00, j);	/* Set mono out (SLIC) to 0dB */
			ixj_mixer(0x0080, j);	/* Mute Master Left volume */
			ixj_mixer(0x0180, j);	/* Mute Master Right volume */
			SLIC_SetState(PLD_SLIC_STATE_STANDBY, j);
/*			SLIC_SetState(PLD_SLIC_STATE_ACTIVE, j); */
			break;
		case QTI_PHONEJACK:
			j->gpio.bytes.high = 0x0B;
			j->gpio.bits.gpio6 = 0;
			j->gpio.bits.gpio7 = 0;
			ixj_WriteDSPCommand(j->gpio.word, j);
			break;
		}
		break;
	case PORT_PSTN:
		if (j->cardtype == QTI_LINEJACK) {
			ixj_WriteDSPCommand(0xC534, j);	/* Write CODEC config to Software Control Register */

			j->pld_slicw.bits.rly3 = 0;
			j->pld_slicw.bits.rly1 = 1;
			j->pld_slicw.bits.spken = 0;
			outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
			j->port = PORT_PSTN;
		} else {
			return 4;
		}
		break;
	case PORT_SPEAKER:
		j->port = PORT_SPEAKER;
		switch (j->cardtype) {
		case QTI_PHONECARD:
			if (j->flags.pcmciasct) {
				SLIC_SetState(PLD_SLIC_STATE_OC, j);
			}
			break;
		case QTI_PHONEJACK_PCI:
			j->pld_slicw.pcib.mic = 1;
			j->pld_slicw.pcib.spk = 1;
			outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
			break;
		case QTI_LINEJACK:
			ixj_set_pots(j, 0);			/* Disconnect POTS/PSTN relay */
			if (ixj_WriteDSPCommand(0xC528, j))		/* Write CODEC config to
									   Software Control Register */
				return 2;
			j->pld_scrw.bits.daafsyncen = 0;	/* Turn off DAA Frame Sync */

			outb(j->pld_scrw.byte, j->XILINXbase);
			j->pld_clock.byte = 0;
			outb(j->pld_clock.byte, j->XILINXbase + 0x04);
			j->pld_slicw.bits.rly1 = 1;
			j->pld_slicw.bits.spken = 1;
			outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
			ixj_mixer(0x1201, j);	/* Turn On MIC switch on mixer left */
			ixj_mixer(0x1400, j);	/* Turn Off Mono1 switch on mixer left */
			ixj_mixer(0x1301, j);       /* Turn On MIC switch on mixer right */
			ixj_mixer(0x1500, j);       /* Turn Off Mono1 switch on mixer right */
			ixj_mixer(0x0E06, j);	/*Mic un-mute 0dB */
			ixj_mixer(0x0F80, j);	/* Mute mono out (SLIC) */
			ixj_mixer(0x0000, j);	/* Set Master Left volume to 0dB */
			ixj_mixer(0x0100, j);	/* Set Master Right volume to 0dB */
			break;
		case QTI_PHONEJACK:
			j->gpio.bytes.high = 0x0B;
			j->gpio.bits.gpio6 = 0;
			j->gpio.bits.gpio7 = 1;
			ixj_WriteDSPCommand(j->gpio.word, j);
			break;
		}
		break;