| /* $Id: niccy.c,v 1.21.2.4 2004/01/13 23:48:39 keil Exp $ | 
 |  * | 
 |  * low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and | 
 |  * compatible (SAGEM cybermodem) | 
 |  * | 
 |  * Author       Karsten Keil | 
 |  * Copyright    by Karsten Keil      <keil@isdn4linux.de> | 
 |  * | 
 |  * This software may be used and distributed according to the terms | 
 |  * of the GNU General Public License, incorporated herein by reference. | 
 |  * | 
 |  * Thanks to Dr. Neuhaus and SAGEM for information | 
 |  * | 
 |  */ | 
 |  | 
 | #include <linux/init.h> | 
 | #include "hisax.h" | 
 | #include "isac.h" | 
 | #include "hscx.h" | 
 | #include "isdnl1.h" | 
 | #include <linux/pci.h> | 
 | #include <linux/isapnp.h> | 
 |  | 
 | static const char *niccy_revision = "$Revision: 1.21.2.4 $"; | 
 |  | 
 | #define byteout(addr, val) outb(val, addr) | 
 | #define bytein(addr) inb(addr) | 
 |  | 
 | #define ISAC_PCI_DATA	0 | 
 | #define HSCX_PCI_DATA	1 | 
 | #define ISAC_PCI_ADDR	2 | 
 | #define HSCX_PCI_ADDR	3 | 
 | #define ISAC_PNP	0 | 
 | #define HSCX_PNP	1 | 
 |  | 
 | /* SUB Types */ | 
 | #define NICCY_PNP	1 | 
 | #define NICCY_PCI	2 | 
 |  | 
 | /* PCI stuff */ | 
 | #define PCI_IRQ_CTRL_REG	0x38 | 
 | #define PCI_IRQ_ENABLE		0x1f00 | 
 | #define PCI_IRQ_DISABLE		0xff0000 | 
 | #define PCI_IRQ_ASSERT		0x800000 | 
 |  | 
 | static inline u_char readreg(unsigned int ale, unsigned int adr, u_char off) | 
 | { | 
 | 	register u_char ret; | 
 |  | 
 | 	byteout(ale, off); | 
 | 	ret = bytein(adr); | 
 | 	return ret; | 
 | } | 
 |  | 
 | static inline void readfifo(unsigned int ale, unsigned int adr, u_char off, | 
 | 			    u_char *data, int size) | 
 | { | 
 | 	byteout(ale, off); | 
 | 	insb(adr, data, size); | 
 | } | 
 |  | 
 | static inline void writereg(unsigned int ale, unsigned int adr, u_char off, | 
 | 			    u_char data) | 
 | { | 
 | 	byteout(ale, off); | 
 | 	byteout(adr, data); | 
 | } | 
 |  | 
 | static inline void writefifo(unsigned int ale, unsigned int adr, u_char off, | 
 | 			     u_char *data, int size) | 
 | { | 
 | 	byteout(ale, off); | 
 | 	outsb(adr, data, size); | 
 | } | 
 |  | 
 | /* Interface functions */ | 
 |  | 
 | static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) | 
 | { | 
 | 	return readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset); | 
 | } | 
 |  | 
 | static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) | 
 | { | 
 | 	writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value); | 
 | } | 
 |  | 
 | static void ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) | 
 | { | 
 | 	readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size); | 
 | } | 
 |  | 
 | static void WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) | 
 | { | 
 | 	writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size); | 
 | } | 
 |  | 
 | static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) | 
 | { | 
 | 	return readreg(cs->hw.niccy.hscx_ale, | 
 | 		       cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0)); | 
 | } | 
 |  | 
 | static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, | 
 | 		      u_char value) | 
 | { | 
 | 	writereg(cs->hw.niccy.hscx_ale, | 
 | 		 cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value); | 
 | } | 
 |  | 
 | #define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale,		\ | 
 | 				      cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0)) | 
 | #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale,	\ | 
 | 					      cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data) | 
 |  | 
 | #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale,	\ | 
 | 						cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt) | 
 |  | 
 | #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \ | 
 | 						  cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt) | 
 |  | 
 | #include "hscx_irq.c" | 
 |  | 
 | static irqreturn_t niccy_interrupt(int intno, void *dev_id) | 
 | { | 
 | 	struct IsdnCardState *cs = dev_id; | 
 | 	u_char val; | 
 | 	u_long flags; | 
 |  | 
 | 	spin_lock_irqsave(&cs->lock, flags); | 
 | 	if (cs->subtyp == NICCY_PCI) { | 
 | 		int ival; | 
 | 		ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); | 
 | 		if (!(ival & PCI_IRQ_ASSERT)) {	/* IRQ not for us (shared) */ | 
 | 			spin_unlock_irqrestore(&cs->lock, flags); | 
 | 			return IRQ_NONE; | 
 | 		} | 
 | 		outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); | 
 | 	} | 
 | 	val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, | 
 | 		      HSCX_ISTA + 0x40); | 
 | Start_HSCX: | 
 | 	if (val) | 
 | 		hscx_int_main(cs, val); | 
 | 	val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA); | 
 | Start_ISAC: | 
 | 	if (val) | 
 | 		isac_interrupt(cs, val); | 
 | 	val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, | 
 | 		      HSCX_ISTA + 0x40); | 
 | 	if (val) { | 
 | 		if (cs->debug & L1_DEB_HSCX) | 
 | 			debugl1(cs, "HSCX IntStat after IntRoutine"); | 
 | 		goto Start_HSCX; | 
 | 	} | 
 | 	val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA); | 
 | 	if (val) { | 
 | 		if (cs->debug & L1_DEB_ISAC) | 
 | 			debugl1(cs, "ISAC IntStat after IntRoutine"); | 
 | 		goto Start_ISAC; | 
 | 	} | 
 | 	writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF); | 
 | 	writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, | 
 | 		 0xFF); | 
 | 	writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF); | 
 | 	writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0); | 
 | 	writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0); | 
 | 	writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0); | 
 | 	spin_unlock_irqrestore(&cs->lock, flags); | 
 | 	return IRQ_HANDLED; | 
 | } | 
 |  | 
 | static void release_io_niccy(struct IsdnCardState *cs) | 
 | { | 
 | 	if (cs->subtyp == NICCY_PCI) { | 
 | 		int val; | 
 |  | 
 | 		val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); | 
 | 		val &= PCI_IRQ_DISABLE; | 
 | 		outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); | 
 | 		release_region(cs->hw.niccy.cfg_reg, 0x40); | 
 | 		release_region(cs->hw.niccy.isac, 4); | 
 | 	} else { | 
 | 		release_region(cs->hw.niccy.isac, 2); | 
 | 		release_region(cs->hw.niccy.isac_ale, 2); | 
 | 	} | 
 | } | 
 |  | 
 | static void niccy_reset(struct IsdnCardState *cs) | 
 | { | 
 | 	if (cs->subtyp == NICCY_PCI) { | 
 | 		int val; | 
 |  | 
 | 		val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); | 
 | 		val |= PCI_IRQ_ENABLE; | 
 | 		outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG); | 
 | 	} | 
 | 	inithscxisac(cs, 3); | 
 | } | 
 |  | 
 | static int niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg) | 
 | { | 
 | 	u_long flags; | 
 |  | 
 | 	switch (mt) { | 
 | 	case CARD_RESET: | 
 | 		spin_lock_irqsave(&cs->lock, flags); | 
 | 		niccy_reset(cs); | 
 | 		spin_unlock_irqrestore(&cs->lock, flags); | 
 | 		return 0; | 
 | 	case CARD_RELEASE: | 
 | 		release_io_niccy(cs); | 
 | 		return 0; | 
 | 	case CARD_INIT: | 
 | 		spin_lock_irqsave(&cs->lock, flags); | 
 | 		niccy_reset(cs); | 
 | 		spin_unlock_irqrestore(&cs->lock, flags); | 
 | 		return 0; | 
 | 	case CARD_TEST: | 
 | 		return 0; | 
 | 	} | 
 | 	return 0; | 
 | } | 
 |  | 
 | #ifdef __ISAPNP__ | 
 | static struct pnp_card *pnp_c = NULL; | 
 | #endif | 
 |  | 
 | int setup_niccy(struct IsdnCard *card) | 
 | { | 
 | 	struct IsdnCardState *cs = card->cs; | 
 | 	char tmp[64]; | 
 |  | 
 | 	strcpy(tmp, niccy_revision); | 
 | 	printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp)); | 
 | 	if (cs->typ != ISDN_CTYPE_NICCY) | 
 | 		return 0; | 
 | #ifdef __ISAPNP__ | 
 | 	if (!card->para[1] && isapnp_present()) { | 
 | 		struct pnp_dev *pnp_d = NULL; | 
 | 		int err; | 
 |  | 
 | 		pnp_c = pnp_find_card(ISAPNP_VENDOR('S', 'D', 'A'), | 
 | 				      ISAPNP_FUNCTION(0x0150), pnp_c); | 
 | 		if (pnp_c) { | 
 | 			pnp_d = pnp_find_dev(pnp_c, | 
 | 					     ISAPNP_VENDOR('S', 'D', 'A'), | 
 | 					     ISAPNP_FUNCTION(0x0150), pnp_d); | 
 | 			if (!pnp_d) { | 
 | 				printk(KERN_ERR "NiccyPnP: PnP error card " | 
 | 				       "found, no device\n"); | 
 | 				return 0; | 
 | 			} | 
 | 			pnp_disable_dev(pnp_d); | 
 | 			err = pnp_activate_dev(pnp_d); | 
 | 			if (err < 0) { | 
 | 				printk(KERN_WARNING "%s: pnp_activate_dev " | 
 | 				       "ret(%d)\n", __func__, err); | 
 | 				return 0; | 
 | 			} | 
 | 			card->para[1] = pnp_port_start(pnp_d, 0); | 
 | 			card->para[2] = pnp_port_start(pnp_d, 1); | 
 | 			card->para[0] = pnp_irq(pnp_d, 0); | 
 | 			if (card->para[0] == -1 || !card->para[1] || | 
 | 			    !card->para[2]) { | 
 | 				printk(KERN_ERR "NiccyPnP:some resources are " | 
 | 				       "missing %ld/%lx/%lx\n", | 
 | 				       card->para[0], card->para[1], | 
 | 				       card->para[2]); | 
 | 				pnp_disable_dev(pnp_d); | 
 | 				return 0; | 
 | 			} | 
 | 		} else | 
 | 			printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n"); | 
 | 	} | 
 | #endif | 
 | 	if (card->para[1]) { | 
 | 		cs->hw.niccy.isac = card->para[1] + ISAC_PNP; | 
 | 		cs->hw.niccy.hscx = card->para[1] + HSCX_PNP; | 
 | 		cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP; | 
 | 		cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP; | 
 | 		cs->hw.niccy.cfg_reg = 0; | 
 | 		cs->subtyp = NICCY_PNP; | 
 | 		cs->irq = card->para[0]; | 
 | 		if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) { | 
 | 			printk(KERN_WARNING "HiSax: NICCY data port %x-%x " | 
 | 			       "already in use\n", | 
 | 			       cs->hw.niccy.isac, cs->hw.niccy.isac + 1); | 
 | 			return 0; | 
 | 		} | 
 | 		if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) { | 
 | 			printk(KERN_WARNING "HiSax: NICCY address port %x-%x " | 
 | 			       "already in use\n", | 
 | 			       cs->hw.niccy.isac_ale, | 
 | 			       cs->hw.niccy.isac_ale + 1); | 
 | 			release_region(cs->hw.niccy.isac, 2); | 
 | 			return 0; | 
 | 		} | 
 | 	} else { | 
 | #ifdef CONFIG_PCI | 
 | 		static struct pci_dev *niccy_dev; | 
 |  | 
 | 		u_int pci_ioaddr; | 
 | 		cs->subtyp = 0; | 
 | 		if ((niccy_dev = hisax_find_pci_device(PCI_VENDOR_ID_SATSAGEM, | 
 | 						       PCI_DEVICE_ID_SATSAGEM_NICCY, | 
 | 						       niccy_dev))) { | 
 | 			if (pci_enable_device(niccy_dev)) | 
 | 				return 0; | 
 | 			/* get IRQ */ | 
 | 			if (!niccy_dev->irq) { | 
 | 				printk(KERN_WARNING | 
 | 				       "Niccy: No IRQ for PCI card found\n"); | 
 | 				return 0; | 
 | 			} | 
 | 			cs->irq = niccy_dev->irq; | 
 | 			cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0); | 
 | 			if (!cs->hw.niccy.cfg_reg) { | 
 | 				printk(KERN_WARNING | 
 | 				       "Niccy: No IO-Adr for PCI cfg found\n"); | 
 | 				return 0; | 
 | 			} | 
 | 			pci_ioaddr = pci_resource_start(niccy_dev, 1); | 
 | 			if (!pci_ioaddr) { | 
 | 				printk(KERN_WARNING | 
 | 				       "Niccy: No IO-Adr for PCI card found\n"); | 
 | 				return 0; | 
 | 			} | 
 | 			cs->subtyp = NICCY_PCI; | 
 | 		} else { | 
 | 			printk(KERN_WARNING "Niccy: No PCI card found\n"); | 
 | 			return 0; | 
 | 		} | 
 | 		cs->irq_flags |= IRQF_SHARED; | 
 | 		cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA; | 
 | 		cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR; | 
 | 		cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA; | 
 | 		cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR; | 
 | 		if (!request_region(cs->hw.niccy.isac, 4, "niccy")) { | 
 | 			printk(KERN_WARNING | 
 | 			       "HiSax: NICCY data port %x-%x already in use\n", | 
 | 			       cs->hw.niccy.isac, cs->hw.niccy.isac + 4); | 
 | 			return 0; | 
 | 		} | 
 | 		if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) { | 
 | 			printk(KERN_WARNING | 
 | 			       "HiSax: NICCY pci port %x-%x already in use\n", | 
 | 			       cs->hw.niccy.cfg_reg, | 
 | 			       cs->hw.niccy.cfg_reg + 0x40); | 
 | 			release_region(cs->hw.niccy.isac, 4); | 
 | 			return 0; | 
 | 		} | 
 | #else | 
 | 		printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n"); | 
 | 		printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n"); | 
 | 		return 0; | 
 | #endif				/* CONFIG_PCI */ | 
 | 	} | 
 | 	printk(KERN_INFO "HiSax: NICCY %s config irq:%d data:0x%X ale:0x%X\n", | 
 | 	       (cs->subtyp == 1) ? "PnP" : "PCI", | 
 | 	       cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale); | 
 | 	setup_isac(cs); | 
 | 	cs->readisac = &ReadISAC; | 
 | 	cs->writeisac = &WriteISAC; | 
 | 	cs->readisacfifo = &ReadISACfifo; | 
 | 	cs->writeisacfifo = &WriteISACfifo; | 
 | 	cs->BC_Read_Reg = &ReadHSCX; | 
 | 	cs->BC_Write_Reg = &WriteHSCX; | 
 | 	cs->BC_Send_Data = &hscx_fill_fifo; | 
 | 	cs->cardmsg = &niccy_card_msg; | 
 | 	cs->irq_func = &niccy_interrupt; | 
 | 	ISACVersion(cs, "Niccy:"); | 
 | 	if (HscxVersion(cs, "Niccy:")) { | 
 | 		printk(KERN_WARNING "Niccy: wrong HSCX versions check IO " | 
 | 		       "address\n"); | 
 | 		release_io_niccy(cs); | 
 | 		return 0; | 
 | 	} | 
 | 	return 1; | 
 | } |