xref: /openbmc/linux/drivers/pcmcia/yenta_socket.c (revision 292a089d)
109c434b8SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
21da177e4SLinus Torvalds /*
31da177e4SLinus Torvalds  * Regular cardbus driver ("yenta_socket")
41da177e4SLinus Torvalds  *
51da177e4SLinus Torvalds  * (C) Copyright 1999, 2000 Linus Torvalds
61da177e4SLinus Torvalds  *
71da177e4SLinus Torvalds  * Changelog:
81da177e4SLinus Torvalds  * Aug 2002: Manfred Spraul <manfred@colorfullife.com>
91da177e4SLinus Torvalds  * 	Dynamically adjust the size of the bridge resource
101da177e4SLinus Torvalds  *
111da177e4SLinus Torvalds  * May 2003: Dominik Brodowski <linux@brodo.de>
121da177e4SLinus Torvalds  * 	Merge pci_socket.c and yenta.c into one file
131da177e4SLinus Torvalds  */
141da177e4SLinus Torvalds #include <linux/init.h>
151da177e4SLinus Torvalds #include <linux/pci.h>
161da177e4SLinus Torvalds #include <linux/workqueue.h>
171da177e4SLinus Torvalds #include <linux/interrupt.h>
181da177e4SLinus Torvalds #include <linux/delay.h>
191da177e4SLinus Torvalds #include <linux/module.h>
209fea84f4SDominik Brodowski #include <linux/io.h>
215a0e3ad6STejun Heo #include <linux/slab.h>
221da177e4SLinus Torvalds 
231da177e4SLinus Torvalds #include <pcmcia/ss.h>
241da177e4SLinus Torvalds 
251da177e4SLinus Torvalds #include "yenta_socket.h"
261da177e4SLinus Torvalds #include "i82365.h"
271da177e4SLinus Torvalds 
2890ab5ee9SRusty Russell static bool disable_clkrun;
291da177e4SLinus Torvalds module_param(disable_clkrun, bool, 0444);
3095691e3eSMaciej S. Szmigiero MODULE_PARM_DESC(disable_clkrun,
3195691e3eSMaciej S. Szmigiero 		 "If PC card doesn't function properly, please try this option (TI and Ricoh bridges only)");
321da177e4SLinus Torvalds 
3390ab5ee9SRusty Russell static bool isa_probe = 1;
34fa912bcbSDaniel Ritz module_param(isa_probe, bool, 0444);
35fa912bcbSDaniel Ritz MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing");
36fa912bcbSDaniel Ritz 
3790ab5ee9SRusty Russell static bool pwr_irqs_off;
38fa912bcbSDaniel Ritz module_param(pwr_irqs_off, bool, 0644);
39fa912bcbSDaniel Ritz MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!");
40fa912bcbSDaniel Ritz 
4135169529SWolfram Sang static char o2_speedup[] = "default";
4235169529SWolfram Sang module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444);
4335169529SWolfram Sang MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' "
4435169529SWolfram Sang 	"or 'default' (uses recommended behaviour for the detected bridge)");
4535169529SWolfram Sang 
460d3a940dSJens Künzer /*
470d3a940dSJens Künzer  * Only probe "regular" interrupts, don't
480d3a940dSJens Künzer  * touch dangerous spots like the mouse irq,
490d3a940dSJens Künzer  * because there are mice that apparently
500d3a940dSJens Künzer  * get really confused if they get fondled
510d3a940dSJens Künzer  * too intimately.
520d3a940dSJens Künzer  *
530d3a940dSJens Künzer  * Default to 11, 10, 9, 7, 6, 5, 4, 3.
540d3a940dSJens Künzer  */
550d3a940dSJens Künzer static u32 isa_interrupts = 0x0ef8;
560d3a940dSJens Künzer 
570d3a940dSJens Künzer 
58dd797d81SDominik Brodowski #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args)
591da177e4SLinus Torvalds 
601da177e4SLinus Torvalds /* Don't ask.. */
611da177e4SLinus Torvalds #define to_cycles(ns)	((ns)/120)
621da177e4SLinus Torvalds #define to_ns(cycles)	((cycles)*120)
631da177e4SLinus Torvalds 
6478187865SRandy Dunlap /*
6563e7ebd0SDaniel Ritz  * yenta PCI irq probing.
6663e7ebd0SDaniel Ritz  * currently only used in the TI/EnE initialization code
6763e7ebd0SDaniel Ritz  */
6863e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_TI
691da177e4SLinus Torvalds static int yenta_probe_cb_irq(struct yenta_socket *socket);
700d3a940dSJens Künzer static unsigned int yenta_probe_irq(struct yenta_socket *socket,
710d3a940dSJens Künzer 				u32 isa_irq_mask);
7263e7ebd0SDaniel Ritz #endif
731da177e4SLinus Torvalds 
741da177e4SLinus Torvalds 
751da177e4SLinus Torvalds static unsigned int override_bios;
761da177e4SLinus Torvalds module_param(override_bios, uint, 0000);
771da177e4SLinus Torvalds MODULE_PARM_DESC(override_bios, "yenta ignore bios resource allocation");
781da177e4SLinus Torvalds 
791da177e4SLinus Torvalds /*
801da177e4SLinus Torvalds  * Generate easy-to-use ways of reading a cardbus sockets
811da177e4SLinus Torvalds  * regular memory space ("cb_xxx"), configuration space
821da177e4SLinus Torvalds  * ("config_xxx") and compatibility space ("exca_xxxx")
831da177e4SLinus Torvalds  */
cb_readl(struct yenta_socket * socket,unsigned reg)841da177e4SLinus Torvalds static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg)
851da177e4SLinus Torvalds {
861da177e4SLinus Torvalds 	u32 val = readl(socket->base + reg);
87dd797d81SDominik Brodowski 	debug("%04x %08x\n", socket, reg, val);
881da177e4SLinus Torvalds 	return val;
891da177e4SLinus Torvalds }
901da177e4SLinus Torvalds 
cb_writel(struct yenta_socket * socket,unsigned reg,u32 val)911da177e4SLinus Torvalds static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val)
921da177e4SLinus Torvalds {
93dd797d81SDominik Brodowski 	debug("%04x %08x\n", socket, reg, val);
941da177e4SLinus Torvalds 	writel(val, socket->base + reg);
95c8751e4cSDaniel Ritz 	readl(socket->base + reg); /* avoid problems with PCI write posting */
961da177e4SLinus Torvalds }
971da177e4SLinus Torvalds 
config_readb(struct yenta_socket * socket,unsigned offset)981da177e4SLinus Torvalds static inline u8 config_readb(struct yenta_socket *socket, unsigned offset)
991da177e4SLinus Torvalds {
1001da177e4SLinus Torvalds 	u8 val;
1011da177e4SLinus Torvalds 	pci_read_config_byte(socket->dev, offset, &val);
102dd797d81SDominik Brodowski 	debug("%04x %02x\n", socket, offset, val);
1031da177e4SLinus Torvalds 	return val;
1041da177e4SLinus Torvalds }
1051da177e4SLinus Torvalds 
config_readw(struct yenta_socket * socket,unsigned offset)1061da177e4SLinus Torvalds static inline u16 config_readw(struct yenta_socket *socket, unsigned offset)
1071da177e4SLinus Torvalds {
1081da177e4SLinus Torvalds 	u16 val;
1091da177e4SLinus Torvalds 	pci_read_config_word(socket->dev, offset, &val);
110dd797d81SDominik Brodowski 	debug("%04x %04x\n", socket, offset, val);
1111da177e4SLinus Torvalds 	return val;
1121da177e4SLinus Torvalds }
1131da177e4SLinus Torvalds 
config_readl(struct yenta_socket * socket,unsigned offset)1141da177e4SLinus Torvalds static inline u32 config_readl(struct yenta_socket *socket, unsigned offset)
1151da177e4SLinus Torvalds {
1161da177e4SLinus Torvalds 	u32 val;
1171da177e4SLinus Torvalds 	pci_read_config_dword(socket->dev, offset, &val);
118dd797d81SDominik Brodowski 	debug("%04x %08x\n", socket, offset, val);
1191da177e4SLinus Torvalds 	return val;
1201da177e4SLinus Torvalds }
1211da177e4SLinus Torvalds 
config_writeb(struct yenta_socket * socket,unsigned offset,u8 val)1221da177e4SLinus Torvalds static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val)
1231da177e4SLinus Torvalds {
124dd797d81SDominik Brodowski 	debug("%04x %02x\n", socket, offset, val);
1251da177e4SLinus Torvalds 	pci_write_config_byte(socket->dev, offset, val);
1261da177e4SLinus Torvalds }
1271da177e4SLinus Torvalds 
config_writew(struct yenta_socket * socket,unsigned offset,u16 val)1281da177e4SLinus Torvalds static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val)
1291da177e4SLinus Torvalds {
130dd797d81SDominik Brodowski 	debug("%04x %04x\n", socket, offset, val);
1311da177e4SLinus Torvalds 	pci_write_config_word(socket->dev, offset, val);
1321da177e4SLinus Torvalds }
1331da177e4SLinus Torvalds 
config_writel(struct yenta_socket * socket,unsigned offset,u32 val)1341da177e4SLinus Torvalds static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val)
1351da177e4SLinus Torvalds {
136dd797d81SDominik Brodowski 	debug("%04x %08x\n", socket, offset, val);
1371da177e4SLinus Torvalds 	pci_write_config_dword(socket->dev, offset, val);
1381da177e4SLinus Torvalds }
1391da177e4SLinus Torvalds 
exca_readb(struct yenta_socket * socket,unsigned reg)1401da177e4SLinus Torvalds static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg)
1411da177e4SLinus Torvalds {
1421da177e4SLinus Torvalds 	u8 val = readb(socket->base + 0x800 + reg);
143dd797d81SDominik Brodowski 	debug("%04x %02x\n", socket, reg, val);
1441da177e4SLinus Torvalds 	return val;
1451da177e4SLinus Torvalds }
1461da177e4SLinus Torvalds 
147468c14d8SDominik Brodowski /*
1481da177e4SLinus Torvalds static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg)
1491da177e4SLinus Torvalds {
1501da177e4SLinus Torvalds 	u16 val;
1511da177e4SLinus Torvalds 	val = readb(socket->base + 0x800 + reg);
1521da177e4SLinus Torvalds 	val |= readb(socket->base + 0x800 + reg + 1) << 8;
153dd797d81SDominik Brodowski 	debug("%04x %04x\n", socket, reg, val);
1541da177e4SLinus Torvalds 	return val;
1551da177e4SLinus Torvalds }
156468c14d8SDominik Brodowski */
1571da177e4SLinus Torvalds 
exca_writeb(struct yenta_socket * socket,unsigned reg,u8 val)1581da177e4SLinus Torvalds static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val)
1591da177e4SLinus Torvalds {
160dd797d81SDominik Brodowski 	debug("%04x %02x\n", socket, reg, val);
1611da177e4SLinus Torvalds 	writeb(val, socket->base + 0x800 + reg);
162c8751e4cSDaniel Ritz 	readb(socket->base + 0x800 + reg); /* PCI write posting... */
1631da177e4SLinus Torvalds }
1641da177e4SLinus Torvalds 
exca_writew(struct yenta_socket * socket,unsigned reg,u16 val)1651da177e4SLinus Torvalds static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val)
1661da177e4SLinus Torvalds {
167dd797d81SDominik Brodowski 	debug("%04x %04x\n", socket, reg, val);
1681da177e4SLinus Torvalds 	writeb(val, socket->base + 0x800 + reg);
1691da177e4SLinus Torvalds 	writeb(val >> 8, socket->base + 0x800 + reg + 1);
170c8751e4cSDaniel Ritz 
171c8751e4cSDaniel Ritz 	/* PCI write posting... */
172c8751e4cSDaniel Ritz 	readb(socket->base + 0x800 + reg);
173c8751e4cSDaniel Ritz 	readb(socket->base + 0x800 + reg + 1);
1741da177e4SLinus Torvalds }
1751da177e4SLinus Torvalds 
show_yenta_registers(struct device * yentadev,struct device_attribute * attr,char * buf)176030ee39cSLinus Torvalds static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf)
177030ee39cSLinus Torvalds {
178e2c05675SChuhong Yuan 	struct yenta_socket *socket = dev_get_drvdata(yentadev);
179030ee39cSLinus Torvalds 	int offset = 0, i;
180030ee39cSLinus Torvalds 
18178e0185cSDominik Brodowski 	offset = sysfs_emit(buf, "CB registers:");
182030ee39cSLinus Torvalds 	for (i = 0; i < 0x24; i += 4) {
183030ee39cSLinus Torvalds 		unsigned val;
184030ee39cSLinus Torvalds 		if (!(i & 15))
18578e0185cSDominik Brodowski 			offset += sysfs_emit_at(buf, offset, "\n%02x:", i);
186030ee39cSLinus Torvalds 		val = cb_readl(socket, i);
18778e0185cSDominik Brodowski 		offset += sysfs_emit_at(buf, offset, " %08x", val);
188030ee39cSLinus Torvalds 	}
189030ee39cSLinus Torvalds 
19078e0185cSDominik Brodowski 	offset += sysfs_emit_at(buf, offset, "\n\nExCA registers:");
191030ee39cSLinus Torvalds 	for (i = 0; i < 0x45; i++) {
192030ee39cSLinus Torvalds 		unsigned char val;
193030ee39cSLinus Torvalds 		if (!(i & 7)) {
194030ee39cSLinus Torvalds 			if (i & 8) {
195030ee39cSLinus Torvalds 				memcpy(buf + offset, " -", 2);
196030ee39cSLinus Torvalds 				offset += 2;
197030ee39cSLinus Torvalds 			} else
19878e0185cSDominik Brodowski 				offset += sysfs_emit_at(buf, offset, "\n%02x:", i);
199030ee39cSLinus Torvalds 		}
200030ee39cSLinus Torvalds 		val = exca_readb(socket, i);
20178e0185cSDominik Brodowski 		offset += sysfs_emit_at(buf, offset, " %02x", val);
202030ee39cSLinus Torvalds 	}
20378e0185cSDominik Brodowski 	sysfs_emit_at(buf, offset, "\n");
204030ee39cSLinus Torvalds 	return offset;
205030ee39cSLinus Torvalds }
206030ee39cSLinus Torvalds 
207030ee39cSLinus Torvalds static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL);
208030ee39cSLinus Torvalds 
2091da177e4SLinus Torvalds /*
2101da177e4SLinus Torvalds  * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend
2111da177e4SLinus Torvalds  * on what kind of card is inserted..
2121da177e4SLinus Torvalds  */
yenta_get_status(struct pcmcia_socket * sock,unsigned int * value)2131da177e4SLinus Torvalds static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value)
2141da177e4SLinus Torvalds {
2151da177e4SLinus Torvalds 	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
2161da177e4SLinus Torvalds 	unsigned int val;
2171da177e4SLinus Torvalds 	u32 state = cb_readl(socket, CB_SOCKET_STATE);
2181da177e4SLinus Torvalds 
2191da177e4SLinus Torvalds 	val  = (state & CB_3VCARD) ? SS_3VCARD : 0;
2201da177e4SLinus Torvalds 	val |= (state & CB_XVCARD) ? SS_XVCARD : 0;
221fa912bcbSDaniel Ritz 	val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING;
222fa912bcbSDaniel Ritz 	val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0;
223fa912bcbSDaniel Ritz 
2241da177e4SLinus Torvalds 
2251da177e4SLinus Torvalds 	if (state & CB_CBCARD) {
2261da177e4SLinus Torvalds 		val |= SS_CARDBUS;
2271da177e4SLinus Torvalds 		val |= (state & CB_CARDSTS) ? SS_STSCHG : 0;
2281da177e4SLinus Torvalds 		val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT;
2291da177e4SLinus Torvalds 		val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0;
230fa912bcbSDaniel Ritz 	} else if (state & CB_16BITCARD) {
2311da177e4SLinus Torvalds 		u8 status = exca_readb(socket, I365_STATUS);
2321da177e4SLinus Torvalds 		val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0;
2331da177e4SLinus Torvalds 		if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
2341da177e4SLinus Torvalds 			val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
2351da177e4SLinus Torvalds 		} else {
2361da177e4SLinus Torvalds 			val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
2371da177e4SLinus Torvalds 			val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
2381da177e4SLinus Torvalds 		}
2391da177e4SLinus Torvalds 		val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
2401da177e4SLinus Torvalds 		val |= (status & I365_CS_READY) ? SS_READY : 0;
2411da177e4SLinus Torvalds 		val |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
2421da177e4SLinus Torvalds 	}
2431da177e4SLinus Torvalds 
2441da177e4SLinus Torvalds 	*value = val;
2451da177e4SLinus Torvalds 	return 0;
2461da177e4SLinus Torvalds }
2471da177e4SLinus Torvalds 
yenta_set_power(struct yenta_socket * socket,socket_state_t * state)2481da177e4SLinus Torvalds static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state)
2491da177e4SLinus Torvalds {
250ea2f1590SDaniel Ritz 	/* some birdges require to use the ExCA registers to power 16bit cards */
251ea2f1590SDaniel Ritz 	if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) &&
252ea2f1590SDaniel Ritz 	    (socket->flags & YENTA_16BIT_POWER_EXCA)) {
253ea2f1590SDaniel Ritz 		u8 reg, old;
254ea2f1590SDaniel Ritz 		reg = old = exca_readb(socket, I365_POWER);
255ea2f1590SDaniel Ritz 		reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK);
256ea2f1590SDaniel Ritz 
257ea2f1590SDaniel Ritz 		/* i82365SL-DF style */
258ea2f1590SDaniel Ritz 		if (socket->flags & YENTA_16BIT_POWER_DF) {
259ea2f1590SDaniel Ritz 			switch (state->Vcc) {
2609fea84f4SDominik Brodowski 			case 33:
2619fea84f4SDominik Brodowski 				reg |= I365_VCC_3V;
2629fea84f4SDominik Brodowski 				break;
2639fea84f4SDominik Brodowski 			case 50:
2649fea84f4SDominik Brodowski 				reg |= I365_VCC_5V;
2659fea84f4SDominik Brodowski 				break;
2669fea84f4SDominik Brodowski 			default:
2679fea84f4SDominik Brodowski 				reg = 0;
2689fea84f4SDominik Brodowski 				break;
269ea2f1590SDaniel Ritz 			}
270ea2f1590SDaniel Ritz 			switch (state->Vpp) {
271ea2f1590SDaniel Ritz 			case 33:
2729fea84f4SDominik Brodowski 			case 50:
2739fea84f4SDominik Brodowski 				reg |= I365_VPP1_5V;
2749fea84f4SDominik Brodowski 				break;
2759fea84f4SDominik Brodowski 			case 120:
2769fea84f4SDominik Brodowski 				reg |= I365_VPP1_12V;
2779fea84f4SDominik Brodowski 				break;
278ea2f1590SDaniel Ritz 			}
279ea2f1590SDaniel Ritz 		} else {
280ea2f1590SDaniel Ritz 			/* i82365SL-B style */
281ea2f1590SDaniel Ritz 			switch (state->Vcc) {
2829fea84f4SDominik Brodowski 			case 50:
2839fea84f4SDominik Brodowski 				reg |= I365_VCC_5V;
2849fea84f4SDominik Brodowski 				break;
2859fea84f4SDominik Brodowski 			default:
2869fea84f4SDominik Brodowski 				reg = 0;
2879fea84f4SDominik Brodowski 				break;
288ea2f1590SDaniel Ritz 			}
289ea2f1590SDaniel Ritz 			switch (state->Vpp) {
2909fea84f4SDominik Brodowski 			case 50:
2919fea84f4SDominik Brodowski 				reg |= I365_VPP1_5V | I365_VPP2_5V;
2929fea84f4SDominik Brodowski 				break;
2939fea84f4SDominik Brodowski 			case 120:
2949fea84f4SDominik Brodowski 				reg |= I365_VPP1_12V | I365_VPP2_12V;
2959fea84f4SDominik Brodowski 				break;
296ea2f1590SDaniel Ritz 			}
297ea2f1590SDaniel Ritz 		}
298ea2f1590SDaniel Ritz 
299ea2f1590SDaniel Ritz 		if (reg != old)
300ea2f1590SDaniel Ritz 			exca_writeb(socket, I365_POWER, reg);
301ea2f1590SDaniel Ritz 	} else {
3021da177e4SLinus Torvalds 		u32 reg = 0;	/* CB_SC_STPCLK? */
3031da177e4SLinus Torvalds 		switch (state->Vcc) {
3049fea84f4SDominik Brodowski 		case 33:
3059fea84f4SDominik Brodowski 			reg = CB_SC_VCC_3V;
3069fea84f4SDominik Brodowski 			break;
3079fea84f4SDominik Brodowski 		case 50:
3089fea84f4SDominik Brodowski 			reg = CB_SC_VCC_5V;
3099fea84f4SDominik Brodowski 			break;
3109fea84f4SDominik Brodowski 		default:
3119fea84f4SDominik Brodowski 			reg = 0;
3129fea84f4SDominik Brodowski 			break;
3131da177e4SLinus Torvalds 		}
3141da177e4SLinus Torvalds 		switch (state->Vpp) {
3159fea84f4SDominik Brodowski 		case 33:
3169fea84f4SDominik Brodowski 			reg |= CB_SC_VPP_3V;
3179fea84f4SDominik Brodowski 			break;
3189fea84f4SDominik Brodowski 		case 50:
3199fea84f4SDominik Brodowski 			reg |= CB_SC_VPP_5V;
3209fea84f4SDominik Brodowski 			break;
3219fea84f4SDominik Brodowski 		case 120:
3229fea84f4SDominik Brodowski 			reg |= CB_SC_VPP_12V;
3239fea84f4SDominik Brodowski 			break;
3241da177e4SLinus Torvalds 		}
3251da177e4SLinus Torvalds 		if (reg != cb_readl(socket, CB_SOCKET_CONTROL))
3261da177e4SLinus Torvalds 			cb_writel(socket, CB_SOCKET_CONTROL, reg);
3271da177e4SLinus Torvalds 	}
328ea2f1590SDaniel Ritz }
3291da177e4SLinus Torvalds 
yenta_set_socket(struct pcmcia_socket * sock,socket_state_t * state)3301da177e4SLinus Torvalds static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
3311da177e4SLinus Torvalds {
3321da177e4SLinus Torvalds 	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
3331da177e4SLinus Torvalds 	u16 bridge;
3341da177e4SLinus Torvalds 
335d250a481SDaniel Ritz 	/* if powering down: do it immediately */
336d250a481SDaniel Ritz 	if (state->Vcc == 0)
3371da177e4SLinus Torvalds 		yenta_set_power(socket, state);
338d250a481SDaniel Ritz 
3391da177e4SLinus Torvalds 	socket->io_irq = state->io_irq;
3401da177e4SLinus Torvalds 	bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR);
3411da177e4SLinus Torvalds 	if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) {
3421da177e4SLinus Torvalds 		u8 intr;
3431da177e4SLinus Torvalds 		bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0;
3441da177e4SLinus Torvalds 
3451da177e4SLinus Torvalds 		/* ISA interrupt control? */
3461da177e4SLinus Torvalds 		intr = exca_readb(socket, I365_INTCTL);
3471da177e4SLinus Torvalds 		intr = (intr & ~0xf);
348ba8819e9SJens Künzer 		if (!socket->dev->irq) {
349ba8819e9SJens Künzer 			intr |= socket->cb_irq ? socket->cb_irq : state->io_irq;
3501da177e4SLinus Torvalds 			bridge |= CB_BRIDGE_INTR;
3511da177e4SLinus Torvalds 		}
3521da177e4SLinus Torvalds 		exca_writeb(socket, I365_INTCTL, intr);
3531da177e4SLinus Torvalds 	}  else {
3541da177e4SLinus Torvalds 		u8 reg;
3551da177e4SLinus Torvalds 
3561da177e4SLinus Torvalds 		reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA);
3571da177e4SLinus Torvalds 		reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
3581da177e4SLinus Torvalds 		reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
359ba8819e9SJens Künzer 		if (state->io_irq != socket->dev->irq) {
3601da177e4SLinus Torvalds 			reg |= state->io_irq;
3611da177e4SLinus Torvalds 			bridge |= CB_BRIDGE_INTR;
3621da177e4SLinus Torvalds 		}
3631da177e4SLinus Torvalds 		exca_writeb(socket, I365_INTCTL, reg);
3641da177e4SLinus Torvalds 
3651da177e4SLinus Torvalds 		reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK);
3661da177e4SLinus Torvalds 		reg |= I365_PWR_NORESET;
3679fea84f4SDominik Brodowski 		if (state->flags & SS_PWR_AUTO)
3689fea84f4SDominik Brodowski 			reg |= I365_PWR_AUTO;
3699fea84f4SDominik Brodowski 		if (state->flags & SS_OUTPUT_ENA)
3709fea84f4SDominik Brodowski 			reg |= I365_PWR_OUT;
3711da177e4SLinus Torvalds 		if (exca_readb(socket, I365_POWER) != reg)
3721da177e4SLinus Torvalds 			exca_writeb(socket, I365_POWER, reg);
3731da177e4SLinus Torvalds 
3741da177e4SLinus Torvalds 		/* CSC interrupt: no ISA irq for CSC */
37528ca8dd7SJens Künzer 		reg = exca_readb(socket, I365_CSCINT);
37628ca8dd7SJens Künzer 		reg &= I365_CSC_IRQ_MASK;
37728ca8dd7SJens Künzer 		reg |= I365_CSC_DETECT;
3781da177e4SLinus Torvalds 		if (state->flags & SS_IOCARD) {
3799fea84f4SDominik Brodowski 			if (state->csc_mask & SS_STSCHG)
3809fea84f4SDominik Brodowski 				reg |= I365_CSC_STSCHG;
3811da177e4SLinus Torvalds 		} else {
3829fea84f4SDominik Brodowski 			if (state->csc_mask & SS_BATDEAD)
3839fea84f4SDominik Brodowski 				reg |= I365_CSC_BVD1;
3849fea84f4SDominik Brodowski 			if (state->csc_mask & SS_BATWARN)
3859fea84f4SDominik Brodowski 				reg |= I365_CSC_BVD2;
3869fea84f4SDominik Brodowski 			if (state->csc_mask & SS_READY)
3879fea84f4SDominik Brodowski 				reg |= I365_CSC_READY;
3881da177e4SLinus Torvalds 		}
3891da177e4SLinus Torvalds 		exca_writeb(socket, I365_CSCINT, reg);
3901da177e4SLinus Torvalds 		exca_readb(socket, I365_CSC);
3911da177e4SLinus Torvalds 		if (sock->zoom_video)
3921da177e4SLinus Torvalds 			sock->zoom_video(sock, state->flags & SS_ZVCARD);
3931da177e4SLinus Torvalds 	}
3941da177e4SLinus Torvalds 	config_writew(socket, CB_BRIDGE_CONTROL, bridge);
3951da177e4SLinus Torvalds 	/* Socket event mask: get card insert/remove events.. */
3961da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_EVENT, -1);
3971da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
398d250a481SDaniel Ritz 
399d250a481SDaniel Ritz 	/* if powering up: do it as the last step when the socket is configured */
400d250a481SDaniel Ritz 	if (state->Vcc != 0)
401d250a481SDaniel Ritz 		yenta_set_power(socket, state);
4021da177e4SLinus Torvalds 	return 0;
4031da177e4SLinus Torvalds }
4041da177e4SLinus Torvalds 
yenta_set_io_map(struct pcmcia_socket * sock,struct pccard_io_map * io)4051da177e4SLinus Torvalds static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
4061da177e4SLinus Torvalds {
4071da177e4SLinus Torvalds 	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
4081da177e4SLinus Torvalds 	int map;
4091da177e4SLinus Torvalds 	unsigned char ioctl, addr, enable;
4101da177e4SLinus Torvalds 
4111da177e4SLinus Torvalds 	map = io->map;
4121da177e4SLinus Torvalds 
4131da177e4SLinus Torvalds 	if (map > 1)
4141da177e4SLinus Torvalds 		return -EINVAL;
4151da177e4SLinus Torvalds 
4161da177e4SLinus Torvalds 	enable = I365_ENA_IO(map);
4171da177e4SLinus Torvalds 	addr = exca_readb(socket, I365_ADDRWIN);
4181da177e4SLinus Torvalds 
4191da177e4SLinus Torvalds 	/* Disable the window before changing it.. */
4201da177e4SLinus Torvalds 	if (addr & enable) {
4211da177e4SLinus Torvalds 		addr &= ~enable;
4221da177e4SLinus Torvalds 		exca_writeb(socket, I365_ADDRWIN, addr);
4231da177e4SLinus Torvalds 	}
4241da177e4SLinus Torvalds 
4251da177e4SLinus Torvalds 	exca_writew(socket, I365_IO(map)+I365_W_START, io->start);
4261da177e4SLinus Torvalds 	exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop);
4271da177e4SLinus Torvalds 
4281da177e4SLinus Torvalds 	ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
4299fea84f4SDominik Brodowski 	if (io->flags & MAP_0WS)
4309fea84f4SDominik Brodowski 		ioctl |= I365_IOCTL_0WS(map);
4319fea84f4SDominik Brodowski 	if (io->flags & MAP_16BIT)
4329fea84f4SDominik Brodowski 		ioctl |= I365_IOCTL_16BIT(map);
4339fea84f4SDominik Brodowski 	if (io->flags & MAP_AUTOSZ)
4349fea84f4SDominik Brodowski 		ioctl |= I365_IOCTL_IOCS16(map);
4351da177e4SLinus Torvalds 	exca_writeb(socket, I365_IOCTL, ioctl);
4361da177e4SLinus Torvalds 
4371da177e4SLinus Torvalds 	if (io->flags & MAP_ACTIVE)
4381da177e4SLinus Torvalds 		exca_writeb(socket, I365_ADDRWIN, addr | enable);
4391da177e4SLinus Torvalds 	return 0;
4401da177e4SLinus Torvalds }
4411da177e4SLinus Torvalds 
yenta_set_mem_map(struct pcmcia_socket * sock,struct pccard_mem_map * mem)4421da177e4SLinus Torvalds static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
4431da177e4SLinus Torvalds {
4441da177e4SLinus Torvalds 	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
4451da177e4SLinus Torvalds 	struct pci_bus_region region;
4461da177e4SLinus Torvalds 	int map;
4471da177e4SLinus Torvalds 	unsigned char addr, enable;
4481da177e4SLinus Torvalds 	unsigned int start, stop, card_start;
4491da177e4SLinus Torvalds 	unsigned short word;
4501da177e4SLinus Torvalds 
451fc279850SYinghai Lu 	pcibios_resource_to_bus(socket->dev->bus, &region, mem->res);
4521da177e4SLinus Torvalds 
4531da177e4SLinus Torvalds 	map = mem->map;
4541da177e4SLinus Torvalds 	start = region.start;
4551da177e4SLinus Torvalds 	stop = region.end;
4561da177e4SLinus Torvalds 	card_start = mem->card_start;
4571da177e4SLinus Torvalds 
4581da177e4SLinus Torvalds 	if (map > 4 || start > stop || ((start ^ stop) >> 24) ||
4591da177e4SLinus Torvalds 	    (card_start >> 26) || mem->speed > 1000)
4601da177e4SLinus Torvalds 		return -EINVAL;
4611da177e4SLinus Torvalds 
4621da177e4SLinus Torvalds 	enable = I365_ENA_MEM(map);
4631da177e4SLinus Torvalds 	addr = exca_readb(socket, I365_ADDRWIN);
4641da177e4SLinus Torvalds 	if (addr & enable) {
4651da177e4SLinus Torvalds 		addr &= ~enable;
4661da177e4SLinus Torvalds 		exca_writeb(socket, I365_ADDRWIN, addr);
4671da177e4SLinus Torvalds 	}
4681da177e4SLinus Torvalds 
4691da177e4SLinus Torvalds 	exca_writeb(socket, CB_MEM_PAGE(map), start >> 24);
4701da177e4SLinus Torvalds 
4711da177e4SLinus Torvalds 	word = (start >> 12) & 0x0fff;
4721da177e4SLinus Torvalds 	if (mem->flags & MAP_16BIT)
4731da177e4SLinus Torvalds 		word |= I365_MEM_16BIT;
4741da177e4SLinus Torvalds 	if (mem->flags & MAP_0WS)
4751da177e4SLinus Torvalds 		word |= I365_MEM_0WS;
4761da177e4SLinus Torvalds 	exca_writew(socket, I365_MEM(map) + I365_W_START, word);
4771da177e4SLinus Torvalds 
4781da177e4SLinus Torvalds 	word = (stop >> 12) & 0x0fff;
4791da177e4SLinus Torvalds 	switch (to_cycles(mem->speed)) {
4809fea84f4SDominik Brodowski 	case 0:
4819fea84f4SDominik Brodowski 		break;
4829fea84f4SDominik Brodowski 	case 1:
4839fea84f4SDominik Brodowski 		word |= I365_MEM_WS0;
4849fea84f4SDominik Brodowski 		break;
4859fea84f4SDominik Brodowski 	case 2:
4869fea84f4SDominik Brodowski 		word |= I365_MEM_WS1;
4879fea84f4SDominik Brodowski 		break;
4889fea84f4SDominik Brodowski 	default:
4899fea84f4SDominik Brodowski 		word |= I365_MEM_WS1 | I365_MEM_WS0;
4909fea84f4SDominik Brodowski 		break;
4911da177e4SLinus Torvalds 	}
4921da177e4SLinus Torvalds 	exca_writew(socket, I365_MEM(map) + I365_W_STOP, word);
4931da177e4SLinus Torvalds 
4941da177e4SLinus Torvalds 	word = ((card_start - start) >> 12) & 0x3fff;
4951da177e4SLinus Torvalds 	if (mem->flags & MAP_WRPROT)
4961da177e4SLinus Torvalds 		word |= I365_MEM_WRPROT;
4971da177e4SLinus Torvalds 	if (mem->flags & MAP_ATTRIB)
4981da177e4SLinus Torvalds 		word |= I365_MEM_REG;
4991da177e4SLinus Torvalds 	exca_writew(socket, I365_MEM(map) + I365_W_OFF, word);
5001da177e4SLinus Torvalds 
5011da177e4SLinus Torvalds 	if (mem->flags & MAP_ACTIVE)
5021da177e4SLinus Torvalds 		exca_writeb(socket, I365_ADDRWIN, addr | enable);
5031da177e4SLinus Torvalds 	return 0;
5041da177e4SLinus Torvalds }
5051da177e4SLinus Torvalds 
5061da177e4SLinus Torvalds 
507fa912bcbSDaniel Ritz 
yenta_interrupt(int irq,void * dev_id)5087d12e780SDavid Howells static irqreturn_t yenta_interrupt(int irq, void *dev_id)
5091da177e4SLinus Torvalds {
510fa912bcbSDaniel Ritz 	unsigned int events;
511fa912bcbSDaniel Ritz 	struct yenta_socket *socket = (struct yenta_socket *) dev_id;
5121da177e4SLinus Torvalds 	u8 csc;
5131da177e4SLinus Torvalds 	u32 cb_event;
5141da177e4SLinus Torvalds 
5151da177e4SLinus Torvalds 	/* Clear interrupt status for the event */
5161da177e4SLinus Torvalds 	cb_event = cb_readl(socket, CB_SOCKET_EVENT);
5171da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_EVENT, cb_event);
5181da177e4SLinus Torvalds 
5191da177e4SLinus Torvalds 	csc = exca_readb(socket, I365_CSC);
5201da177e4SLinus Torvalds 
521e4115805SDaniel Ritz 	if (!(cb_event || csc))
522e4115805SDaniel Ritz 		return IRQ_NONE;
523e4115805SDaniel Ritz 
5241da177e4SLinus Torvalds 	events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ;
5251da177e4SLinus Torvalds 	events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
5261da177e4SLinus Torvalds 	if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) {
5271da177e4SLinus Torvalds 		events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
5281da177e4SLinus Torvalds 	} else {
5291da177e4SLinus Torvalds 		events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
5301da177e4SLinus Torvalds 		events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
5311da177e4SLinus Torvalds 		events |= (csc & I365_CSC_READY) ? SS_READY : 0;
5321da177e4SLinus Torvalds 	}
5331da177e4SLinus Torvalds 
534fa912bcbSDaniel Ritz 	if (events)
5351da177e4SLinus Torvalds 		pcmcia_parse_events(&socket->socket, events);
536fa912bcbSDaniel Ritz 
5371da177e4SLinus Torvalds 	return IRQ_HANDLED;
5381da177e4SLinus Torvalds }
5391da177e4SLinus Torvalds 
yenta_interrupt_wrapper(struct timer_list * t)54041760d0eSKees Cook static void yenta_interrupt_wrapper(struct timer_list *t)
5411da177e4SLinus Torvalds {
54241760d0eSKees Cook 	struct yenta_socket *socket = from_timer(socket, t, poll_timer);
5431da177e4SLinus Torvalds 
5447d12e780SDavid Howells 	yenta_interrupt(0, (void *)socket);
5451da177e4SLinus Torvalds 	socket->poll_timer.expires = jiffies + HZ;
5461da177e4SLinus Torvalds 	add_timer(&socket->poll_timer);
5471da177e4SLinus Torvalds }
5481da177e4SLinus Torvalds 
yenta_clear_maps(struct yenta_socket * socket)5491da177e4SLinus Torvalds static void yenta_clear_maps(struct yenta_socket *socket)
5501da177e4SLinus Torvalds {
5511da177e4SLinus Torvalds 	int i;
5521da177e4SLinus Torvalds 	struct resource res = { .start = 0, .end = 0x0fff };
5531da177e4SLinus Torvalds 	pccard_io_map io = { 0, 0, 0, 0, 1 };
5541da177e4SLinus Torvalds 	pccard_mem_map mem = { .res = &res, };
5551da177e4SLinus Torvalds 
5561da177e4SLinus Torvalds 	yenta_set_socket(&socket->socket, &dead_socket);
5571da177e4SLinus Torvalds 	for (i = 0; i < 2; i++) {
5581da177e4SLinus Torvalds 		io.map = i;
5591da177e4SLinus Torvalds 		yenta_set_io_map(&socket->socket, &io);
5601da177e4SLinus Torvalds 	}
5611da177e4SLinus Torvalds 	for (i = 0; i < 5; i++) {
5621da177e4SLinus Torvalds 		mem.map = i;
5631da177e4SLinus Torvalds 		yenta_set_mem_map(&socket->socket, &mem);
5641da177e4SLinus Torvalds 	}
5651da177e4SLinus Torvalds }
5661da177e4SLinus Torvalds 
567fa912bcbSDaniel Ritz /* redoes voltage interrogation if required */
yenta_interrogate(struct yenta_socket * socket)568fa912bcbSDaniel Ritz static void yenta_interrogate(struct yenta_socket *socket)
569fa912bcbSDaniel Ritz {
570fa912bcbSDaniel Ritz 	u32 state;
571fa912bcbSDaniel Ritz 
572fa912bcbSDaniel Ritz 	state = cb_readl(socket, CB_SOCKET_STATE);
573fa912bcbSDaniel Ritz 	if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ||
574fa912bcbSDaniel Ritz 	    (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) ||
575fa912bcbSDaniel Ritz 	    ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD)))
576fa912bcbSDaniel Ritz 		cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
577fa912bcbSDaniel Ritz }
578fa912bcbSDaniel Ritz 
5791da177e4SLinus Torvalds /* Called at resume and initialization events */
yenta_sock_init(struct pcmcia_socket * sock)5801da177e4SLinus Torvalds static int yenta_sock_init(struct pcmcia_socket *sock)
5811da177e4SLinus Torvalds {
5821da177e4SLinus Torvalds 	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
5831da177e4SLinus Torvalds 
5841da177e4SLinus Torvalds 	exca_writeb(socket, I365_GBLCTL, 0x00);
5851da177e4SLinus Torvalds 	exca_writeb(socket, I365_GENCTL, 0x00);
5861da177e4SLinus Torvalds 
5871da177e4SLinus Torvalds 	/* Redo card voltage interrogation */
588fa912bcbSDaniel Ritz 	yenta_interrogate(socket);
5891da177e4SLinus Torvalds 
5901da177e4SLinus Torvalds 	yenta_clear_maps(socket);
5911da177e4SLinus Torvalds 
5921da177e4SLinus Torvalds 	if (socket->type && socket->type->sock_init)
5931da177e4SLinus Torvalds 		socket->type->sock_init(socket);
5941da177e4SLinus Torvalds 
5951da177e4SLinus Torvalds 	/* Re-enable CSC interrupts */
5961da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK);
5971da177e4SLinus Torvalds 
5981da177e4SLinus Torvalds 	return 0;
5991da177e4SLinus Torvalds }
6001da177e4SLinus Torvalds 
yenta_sock_suspend(struct pcmcia_socket * sock)6011da177e4SLinus Torvalds static int yenta_sock_suspend(struct pcmcia_socket *sock)
6021da177e4SLinus Torvalds {
6031da177e4SLinus Torvalds 	struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
6041da177e4SLinus Torvalds 
6051da177e4SLinus Torvalds 	/* Disable CSC interrupts */
6061da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_MASK, 0x0);
6071da177e4SLinus Torvalds 
6081da177e4SLinus Torvalds 	return 0;
6091da177e4SLinus Torvalds }
6101da177e4SLinus Torvalds 
6111da177e4SLinus Torvalds /*
6121da177e4SLinus Torvalds  * Use an adaptive allocation for the memory resource,
6131da177e4SLinus Torvalds  * sometimes the memory behind pci bridges is limited:
6141da177e4SLinus Torvalds  * 1/8 of the size of the io window of the parent.
615eb0a90b4SDominik Brodowski  * max 4 MB, min 16 kB. We try very hard to not get below
616eb0a90b4SDominik Brodowski  * the "ACC" values, though.
6171da177e4SLinus Torvalds  */
6189fea84f4SDominik Brodowski #define BRIDGE_MEM_MAX (4*1024*1024)
6199fea84f4SDominik Brodowski #define BRIDGE_MEM_ACC (128*1024)
6209fea84f4SDominik Brodowski #define BRIDGE_MEM_MIN (16*1024)
6211da177e4SLinus Torvalds 
622eb0a90b4SDominik Brodowski #define BRIDGE_IO_MAX 512
623eb0a90b4SDominik Brodowski #define BRIDGE_IO_ACC 256
6241da177e4SLinus Torvalds #define BRIDGE_IO_MIN 32
6251da177e4SLinus Torvalds 
6261da177e4SLinus Torvalds #ifndef PCIBIOS_MIN_CARDBUS_IO
6271da177e4SLinus Torvalds #define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO
6281da177e4SLinus Torvalds #endif
6291da177e4SLinus Torvalds 
yenta_search_one_res(struct resource * root,struct resource * res,u32 min)630eb0a90b4SDominik Brodowski static int yenta_search_one_res(struct resource *root, struct resource *res,
631eb0a90b4SDominik Brodowski 				u32 min)
632eb0a90b4SDominik Brodowski {
633eb0a90b4SDominik Brodowski 	u32 align, size, start, end;
634eb0a90b4SDominik Brodowski 
635eb0a90b4SDominik Brodowski 	if (res->flags & IORESOURCE_IO) {
636eb0a90b4SDominik Brodowski 		align = 1024;
637eb0a90b4SDominik Brodowski 		size = BRIDGE_IO_MAX;
638eb0a90b4SDominik Brodowski 		start = PCIBIOS_MIN_CARDBUS_IO;
639eb0a90b4SDominik Brodowski 		end = ~0U;
640eb0a90b4SDominik Brodowski 	} else {
641eb0a90b4SDominik Brodowski 		unsigned long avail = root->end - root->start;
642eb0a90b4SDominik Brodowski 		int i;
643eb0a90b4SDominik Brodowski 		size = BRIDGE_MEM_MAX;
644eb0a90b4SDominik Brodowski 		if (size > avail/8) {
645eb0a90b4SDominik Brodowski 			size = (avail+1)/8;
646eb0a90b4SDominik Brodowski 			/* round size down to next power of 2 */
647eb0a90b4SDominik Brodowski 			i = 0;
648eb0a90b4SDominik Brodowski 			while ((size /= 2) != 0)
649eb0a90b4SDominik Brodowski 				i++;
650eb0a90b4SDominik Brodowski 			size = 1 << i;
651eb0a90b4SDominik Brodowski 		}
652eb0a90b4SDominik Brodowski 		if (size < min)
653eb0a90b4SDominik Brodowski 			size = min;
654eb0a90b4SDominik Brodowski 		align = size;
655eb0a90b4SDominik Brodowski 		start = PCIBIOS_MIN_MEM;
656eb0a90b4SDominik Brodowski 		end = ~0U;
657eb0a90b4SDominik Brodowski 	}
658eb0a90b4SDominik Brodowski 
659eb0a90b4SDominik Brodowski 	do {
660eb0a90b4SDominik Brodowski 		if (allocate_resource(root, res, size, start, end, align,
661eb0a90b4SDominik Brodowski 				      NULL, NULL) == 0) {
662eb0a90b4SDominik Brodowski 			return 1;
663eb0a90b4SDominik Brodowski 		}
664eb0a90b4SDominik Brodowski 		size = size/2;
665eb0a90b4SDominik Brodowski 		align = size;
666eb0a90b4SDominik Brodowski 	} while (size >= min);
667eb0a90b4SDominik Brodowski 
668eb0a90b4SDominik Brodowski 	return 0;
669eb0a90b4SDominik Brodowski }
670eb0a90b4SDominik Brodowski 
671eb0a90b4SDominik Brodowski 
yenta_search_res(struct yenta_socket * socket,struct resource * res,u32 min)672eb0a90b4SDominik Brodowski static int yenta_search_res(struct yenta_socket *socket, struct resource *res,
673eb0a90b4SDominik Brodowski 			    u32 min)
674eb0a90b4SDominik Brodowski {
67589a74eccSBjorn Helgaas 	struct resource *root;
676eb0a90b4SDominik Brodowski 	int i;
67789a74eccSBjorn Helgaas 
67889a74eccSBjorn Helgaas 	pci_bus_for_each_resource(socket->dev->bus, root, i) {
679eb0a90b4SDominik Brodowski 		if (!root)
680eb0a90b4SDominik Brodowski 			continue;
681eb0a90b4SDominik Brodowski 
682eb0a90b4SDominik Brodowski 		if ((res->flags ^ root->flags) &
683eb0a90b4SDominik Brodowski 		    (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH))
684eb0a90b4SDominik Brodowski 			continue; /* Wrong type */
685eb0a90b4SDominik Brodowski 
686eb0a90b4SDominik Brodowski 		if (yenta_search_one_res(root, res, min))
687eb0a90b4SDominik Brodowski 			return 1;
688eb0a90b4SDominik Brodowski 	}
689eb0a90b4SDominik Brodowski 	return 0;
690eb0a90b4SDominik Brodowski }
691eb0a90b4SDominik Brodowski 
yenta_allocate_res(struct yenta_socket * socket,int nr,unsigned type,int addr_start,int addr_end)692b3743fa4SDominik Brodowski static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
6931da177e4SLinus Torvalds {
694852710d9SMatthew Wilcox 	struct pci_dev *dev = socket->dev;
695852710d9SMatthew Wilcox 	struct resource *res;
69643c34735SDominik Brodowski 	struct pci_bus_region region;
6971da177e4SLinus Torvalds 	unsigned mask;
6981da177e4SLinus Torvalds 
6996e0688dbSKrzysztof Wilczynski 	res = &dev->resource[nr];
7007925407aSIvan Kokshaysky 	/* Already allocated? */
7017925407aSIvan Kokshaysky 	if (res->parent)
702b3743fa4SDominik Brodowski 		return 0;
7037925407aSIvan Kokshaysky 
7041da177e4SLinus Torvalds 	/* The granularity of the memory limit is 4kB, on IO it's 4 bytes */
7051da177e4SLinus Torvalds 	mask = ~0xfff;
7061da177e4SLinus Torvalds 	if (type & IORESOURCE_IO)
7071da177e4SLinus Torvalds 		mask = ~3;
7081da177e4SLinus Torvalds 
709852710d9SMatthew Wilcox 	res->name = dev->subordinate->name;
7101da177e4SLinus Torvalds 	res->flags = type;
7111da177e4SLinus Torvalds 
71243c34735SDominik Brodowski 	region.start = config_readl(socket, addr_start) & mask;
71343c34735SDominik Brodowski 	region.end = config_readl(socket, addr_end) | ~mask;
71443c34735SDominik Brodowski 	if (region.start && region.end > region.start && !override_bios) {
715fc279850SYinghai Lu 		pcibios_bus_to_resource(dev->bus, res, &region);
7166e0688dbSKrzysztof Wilczynski 		if (pci_claim_resource(dev, nr) == 0)
717b3743fa4SDominik Brodowski 			return 0;
718f2e6cf76SJoe Perches 		dev_info(&dev->dev,
719f2e6cf76SJoe Perches 			 "Preassigned resource %d busy or not available, reconfiguring...\n",
720dd797d81SDominik Brodowski 			 nr);
7211da177e4SLinus Torvalds 	}
7221da177e4SLinus Torvalds 
7231da177e4SLinus Torvalds 	if (type & IORESOURCE_IO) {
724eb0a90b4SDominik Brodowski 		if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) ||
725eb0a90b4SDominik Brodowski 		    (yenta_search_res(socket, res, BRIDGE_IO_ACC)) ||
726b3743fa4SDominik Brodowski 		    (yenta_search_res(socket, res, BRIDGE_IO_MIN)))
727b3743fa4SDominik Brodowski 			return 1;
728eb0a90b4SDominik Brodowski 	} else {
729eb0a90b4SDominik Brodowski 		if (type & IORESOURCE_PREFETCH) {
730eb0a90b4SDominik Brodowski 			if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
731eb0a90b4SDominik Brodowski 			    (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
732b3743fa4SDominik Brodowski 			    (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
733b3743fa4SDominik Brodowski 				return 1;
734eb0a90b4SDominik Brodowski 			/* Approximating prefetchable by non-prefetchable */
735eb0a90b4SDominik Brodowski 			res->flags = IORESOURCE_MEM;
736eb0a90b4SDominik Brodowski 		}
737eb0a90b4SDominik Brodowski 		if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) ||
738eb0a90b4SDominik Brodowski 		    (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) ||
739b3743fa4SDominik Brodowski 		    (yenta_search_res(socket, res, BRIDGE_MEM_MIN)))
740b3743fa4SDominik Brodowski 			return 1;
741eb0a90b4SDominik Brodowski 	}
742eb0a90b4SDominik Brodowski 
743f2e6cf76SJoe Perches 	dev_info(&dev->dev,
744dd797d81SDominik Brodowski 		 "no resource of type %x available, trying to continue...\n",
745dd797d81SDominik Brodowski 		 type);
746eb0a90b4SDominik Brodowski 	res->start = res->end = res->flags = 0;
747b3743fa4SDominik Brodowski 	return 0;
7481da177e4SLinus Torvalds }
7491da177e4SLinus Torvalds 
yenta_free_res(struct yenta_socket * socket,int nr)75011fdcf05SKrzysztof Wilczynski static void yenta_free_res(struct yenta_socket *socket, int nr)
75111fdcf05SKrzysztof Wilczynski {
75211fdcf05SKrzysztof Wilczynski 	struct pci_dev *dev = socket->dev;
75311fdcf05SKrzysztof Wilczynski 	struct resource *res;
75411fdcf05SKrzysztof Wilczynski 
75511fdcf05SKrzysztof Wilczynski 	res = &dev->resource[nr];
75611fdcf05SKrzysztof Wilczynski 	if (res->start != 0 && res->end != 0)
75711fdcf05SKrzysztof Wilczynski 		release_resource(res);
75811fdcf05SKrzysztof Wilczynski 
75911fdcf05SKrzysztof Wilczynski 	res->start = res->end = res->flags = 0;
76011fdcf05SKrzysztof Wilczynski }
76111fdcf05SKrzysztof Wilczynski 
7621da177e4SLinus Torvalds /*
7631da177e4SLinus Torvalds  * Allocate the bridge mappings for the device..
7641da177e4SLinus Torvalds  */
yenta_allocate_resources(struct yenta_socket * socket)7651da177e4SLinus Torvalds static void yenta_allocate_resources(struct yenta_socket *socket)
7661da177e4SLinus Torvalds {
767b3743fa4SDominik Brodowski 	int program = 0;
7686e0688dbSKrzysztof Wilczynski 	program += yenta_allocate_res(socket, PCI_CB_BRIDGE_IO_0_WINDOW,
7696e0688dbSKrzysztof Wilczynski 			   IORESOURCE_IO,
77027879835SDominik Brodowski 			   PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0);
7716e0688dbSKrzysztof Wilczynski 	program += yenta_allocate_res(socket, PCI_CB_BRIDGE_IO_1_WINDOW,
7726e0688dbSKrzysztof Wilczynski 			   IORESOURCE_IO,
77327879835SDominik Brodowski 			   PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1);
7746e0688dbSKrzysztof Wilczynski 	program += yenta_allocate_res(socket, PCI_CB_BRIDGE_MEM_0_WINDOW,
7756e0688dbSKrzysztof Wilczynski 			   IORESOURCE_MEM | IORESOURCE_PREFETCH,
77627879835SDominik Brodowski 			   PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0);
7776e0688dbSKrzysztof Wilczynski 	program += yenta_allocate_res(socket, PCI_CB_BRIDGE_MEM_1_WINDOW,
7786e0688dbSKrzysztof Wilczynski 			   IORESOURCE_MEM,
77927879835SDominik Brodowski 			   PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1);
780b3743fa4SDominik Brodowski 	if (program)
781b3743fa4SDominik Brodowski 		pci_setup_cardbus(socket->dev->subordinate);
7821da177e4SLinus Torvalds }
7831da177e4SLinus Torvalds 
7841da177e4SLinus Torvalds 
7851da177e4SLinus Torvalds /*
7861da177e4SLinus Torvalds  * Free the bridge mappings for the device..
7871da177e4SLinus Torvalds  */
yenta_free_resources(struct yenta_socket * socket)7881da177e4SLinus Torvalds static void yenta_free_resources(struct yenta_socket *socket)
7891da177e4SLinus Torvalds {
79011fdcf05SKrzysztof Wilczynski 	yenta_free_res(socket, PCI_CB_BRIDGE_IO_0_WINDOW);
79111fdcf05SKrzysztof Wilczynski 	yenta_free_res(socket, PCI_CB_BRIDGE_IO_1_WINDOW);
79211fdcf05SKrzysztof Wilczynski 	yenta_free_res(socket, PCI_CB_BRIDGE_MEM_0_WINDOW);
79311fdcf05SKrzysztof Wilczynski 	yenta_free_res(socket, PCI_CB_BRIDGE_MEM_1_WINDOW);
7941da177e4SLinus Torvalds }
7951da177e4SLinus Torvalds 
7961da177e4SLinus Torvalds 
7971da177e4SLinus Torvalds /*
7981da177e4SLinus Torvalds  * Close it down - release our resources and go home..
7991da177e4SLinus Torvalds  */
yenta_close(struct pci_dev * dev)800e765a02cSBill Pemberton static void yenta_close(struct pci_dev *dev)
8011da177e4SLinus Torvalds {
8021da177e4SLinus Torvalds 	struct yenta_socket *sock = pci_get_drvdata(dev);
8031da177e4SLinus Torvalds 
804030ee39cSLinus Torvalds 	/* Remove the register attributes */
805030ee39cSLinus Torvalds 	device_remove_file(&dev->dev, &dev_attr_yenta_registers);
806030ee39cSLinus Torvalds 
8071da177e4SLinus Torvalds 	/* we don't want a dying socket registered */
8081da177e4SLinus Torvalds 	pcmcia_unregister_socket(&sock->socket);
8091da177e4SLinus Torvalds 
8101da177e4SLinus Torvalds 	/* Disable all events so we don't die in an IRQ storm */
8111da177e4SLinus Torvalds 	cb_writel(sock, CB_SOCKET_MASK, 0x0);
8121da177e4SLinus Torvalds 	exca_writeb(sock, I365_CSCINT, 0);
8131da177e4SLinus Torvalds 
8141da177e4SLinus Torvalds 	if (sock->cb_irq)
8151da177e4SLinus Torvalds 		free_irq(sock->cb_irq, sock);
8161da177e4SLinus Torvalds 	else
817*292a089dSSteven Rostedt (Google) 		timer_shutdown_sync(&sock->poll_timer);
8181da177e4SLinus Torvalds 
8191da177e4SLinus Torvalds 	iounmap(sock->base);
8201da177e4SLinus Torvalds 	yenta_free_resources(sock);
8211da177e4SLinus Torvalds 
8221da177e4SLinus Torvalds 	pci_release_regions(dev);
8231da177e4SLinus Torvalds 	pci_disable_device(dev);
8241da177e4SLinus Torvalds 	pci_set_drvdata(dev, NULL);
825d19319afSTakeshi Yoshimura 	kfree(sock);
8261da177e4SLinus Torvalds }
8271da177e4SLinus Torvalds 
8281da177e4SLinus Torvalds 
8291da177e4SLinus Torvalds static struct pccard_operations yenta_socket_operations = {
8301da177e4SLinus Torvalds 	.init			= yenta_sock_init,
8311da177e4SLinus Torvalds 	.suspend		= yenta_sock_suspend,
8321da177e4SLinus Torvalds 	.get_status		= yenta_get_status,
8331da177e4SLinus Torvalds 	.set_socket		= yenta_set_socket,
8341da177e4SLinus Torvalds 	.set_io_map		= yenta_set_io_map,
8351da177e4SLinus Torvalds 	.set_mem_map		= yenta_set_mem_map,
8361da177e4SLinus Torvalds };
8371da177e4SLinus Torvalds 
8381da177e4SLinus Torvalds 
83963e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_TI
8401da177e4SLinus Torvalds #include "ti113x.h"
84163e7ebd0SDaniel Ritz #endif
84263e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_RICOH
8431da177e4SLinus Torvalds #include "ricoh.h"
84463e7ebd0SDaniel Ritz #endif
84563e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_TOSHIBA
8461da177e4SLinus Torvalds #include "topic.h"
84763e7ebd0SDaniel Ritz #endif
84863e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_O2
8491da177e4SLinus Torvalds #include "o2micro.h"
85063e7ebd0SDaniel Ritz #endif
8511da177e4SLinus Torvalds 
8521da177e4SLinus Torvalds enum {
8531da177e4SLinus Torvalds 	CARDBUS_TYPE_DEFAULT = -1,
8541da177e4SLinus Torvalds 	CARDBUS_TYPE_TI,
8551da177e4SLinus Torvalds 	CARDBUS_TYPE_TI113X,
8561da177e4SLinus Torvalds 	CARDBUS_TYPE_TI12XX,
8571da177e4SLinus Torvalds 	CARDBUS_TYPE_TI1250,
8581da177e4SLinus Torvalds 	CARDBUS_TYPE_RICOH,
859ea2f1590SDaniel Ritz 	CARDBUS_TYPE_TOPIC95,
8601da177e4SLinus Torvalds 	CARDBUS_TYPE_TOPIC97,
8611da177e4SLinus Torvalds 	CARDBUS_TYPE_O2MICRO,
8628c3520d4SDaniel Ritz 	CARDBUS_TYPE_ENE,
8631da177e4SLinus Torvalds };
8641da177e4SLinus Torvalds 
8651da177e4SLinus Torvalds /*
8661da177e4SLinus Torvalds  * Different cardbus controllers have slightly different
8671da177e4SLinus Torvalds  * initialization sequences etc details. List them here..
8681da177e4SLinus Torvalds  */
8691da177e4SLinus Torvalds static struct cardbus_type cardbus_type[] = {
87063e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_TI
8711da177e4SLinus Torvalds 	[CARDBUS_TYPE_TI]	= {
8721da177e4SLinus Torvalds 		.override	= ti_override,
8731da177e4SLinus Torvalds 		.save_state	= ti_save_state,
8741da177e4SLinus Torvalds 		.restore_state	= ti_restore_state,
8751da177e4SLinus Torvalds 		.sock_init	= ti_init,
8761da177e4SLinus Torvalds 	},
8771da177e4SLinus Torvalds 	[CARDBUS_TYPE_TI113X]	= {
8781da177e4SLinus Torvalds 		.override	= ti113x_override,
8791da177e4SLinus Torvalds 		.save_state	= ti_save_state,
8801da177e4SLinus Torvalds 		.restore_state	= ti_restore_state,
8811da177e4SLinus Torvalds 		.sock_init	= ti_init,
8821da177e4SLinus Torvalds 	},
8831da177e4SLinus Torvalds 	[CARDBUS_TYPE_TI12XX]	= {
8841da177e4SLinus Torvalds 		.override	= ti12xx_override,
8851da177e4SLinus Torvalds 		.save_state	= ti_save_state,
8861da177e4SLinus Torvalds 		.restore_state	= ti_restore_state,
8871da177e4SLinus Torvalds 		.sock_init	= ti_init,
8881da177e4SLinus Torvalds 	},
8891da177e4SLinus Torvalds 	[CARDBUS_TYPE_TI1250]	= {
8901da177e4SLinus Torvalds 		.override	= ti1250_override,
8911da177e4SLinus Torvalds 		.save_state	= ti_save_state,
8921da177e4SLinus Torvalds 		.restore_state	= ti_restore_state,
8931da177e4SLinus Torvalds 		.sock_init	= ti_init,
8941da177e4SLinus Torvalds 	},
8954f2d364bSJustin P. Mattock 	[CARDBUS_TYPE_ENE]	= {
8964f2d364bSJustin P. Mattock 		.override	= ene_override,
8974f2d364bSJustin P. Mattock 		.save_state	= ti_save_state,
8984f2d364bSJustin P. Mattock 		.restore_state	= ti_restore_state,
8994f2d364bSJustin P. Mattock 		.sock_init	= ti_init,
9004f2d364bSJustin P. Mattock 	},
90163e7ebd0SDaniel Ritz #endif
90263e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_RICOH
9031da177e4SLinus Torvalds 	[CARDBUS_TYPE_RICOH]	= {
9041da177e4SLinus Torvalds 		.override	= ricoh_override,
9051da177e4SLinus Torvalds 		.save_state	= ricoh_save_state,
9061da177e4SLinus Torvalds 		.restore_state	= ricoh_restore_state,
9071da177e4SLinus Torvalds 	},
90863e7ebd0SDaniel Ritz #endif
90963e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_TOSHIBA
910ea2f1590SDaniel Ritz 	[CARDBUS_TYPE_TOPIC95]	= {
911ea2f1590SDaniel Ritz 		.override	= topic95_override,
912ea2f1590SDaniel Ritz 	},
9131da177e4SLinus Torvalds 	[CARDBUS_TYPE_TOPIC97]	= {
9141da177e4SLinus Torvalds 		.override	= topic97_override,
9151da177e4SLinus Torvalds 	},
91663e7ebd0SDaniel Ritz #endif
91763e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_O2
9181da177e4SLinus Torvalds 	[CARDBUS_TYPE_O2MICRO]	= {
9191da177e4SLinus Torvalds 		.override	= o2micro_override,
9201da177e4SLinus Torvalds 		.restore_state	= o2micro_restore_state,
9211da177e4SLinus Torvalds 	},
92263e7ebd0SDaniel Ritz #endif
9231da177e4SLinus Torvalds };
9241da177e4SLinus Torvalds 
9251da177e4SLinus Torvalds 
yenta_probe_irq(struct yenta_socket * socket,u32 isa_irq_mask)9261da177e4SLinus Torvalds static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask)
9271da177e4SLinus Torvalds {
9281da177e4SLinus Torvalds 	int i;
9291da177e4SLinus Torvalds 	unsigned long val;
9301da177e4SLinus Torvalds 	u32 mask;
93128ca8dd7SJens Künzer 	u8 reg;
9321da177e4SLinus Torvalds 
9331da177e4SLinus Torvalds 	/*
9341da177e4SLinus Torvalds 	 * Probe for usable interrupts using the force
9351da177e4SLinus Torvalds 	 * register to generate bogus card status events.
9361da177e4SLinus Torvalds 	 */
9371da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_EVENT, -1);
9381da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
93928ca8dd7SJens Künzer 	reg = exca_readb(socket, I365_CSCINT);
9401da177e4SLinus Torvalds 	exca_writeb(socket, I365_CSCINT, 0);
9411da177e4SLinus Torvalds 	val = probe_irq_on() & isa_irq_mask;
9421da177e4SLinus Torvalds 	for (i = 1; i < 16; i++) {
9431da177e4SLinus Torvalds 		if (!((val >> i) & 1))
9441da177e4SLinus Torvalds 			continue;
9451da177e4SLinus Torvalds 		exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4));
9461da177e4SLinus Torvalds 		cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
9471da177e4SLinus Torvalds 		udelay(100);
9481da177e4SLinus Torvalds 		cb_writel(socket, CB_SOCKET_EVENT, -1);
9491da177e4SLinus Torvalds 	}
9501da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_MASK, 0);
95128ca8dd7SJens Künzer 	exca_writeb(socket, I365_CSCINT, reg);
9521da177e4SLinus Torvalds 
9531da177e4SLinus Torvalds 	mask = probe_irq_mask(val) & 0xffff;
9541da177e4SLinus Torvalds 
9551da177e4SLinus Torvalds 	return mask;
9561da177e4SLinus Torvalds }
9571da177e4SLinus Torvalds 
9581da177e4SLinus Torvalds 
95978187865SRandy Dunlap /*
96063e7ebd0SDaniel Ritz  * yenta PCI irq probing.
96163e7ebd0SDaniel Ritz  * currently only used in the TI/EnE initialization code
96263e7ebd0SDaniel Ritz  */
96363e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_TI
96463e7ebd0SDaniel Ritz 
9651da177e4SLinus Torvalds /* interrupt handler, only used during probing */
yenta_probe_handler(int irq,void * dev_id)9667d12e780SDavid Howells static irqreturn_t yenta_probe_handler(int irq, void *dev_id)
9671da177e4SLinus Torvalds {
9681da177e4SLinus Torvalds 	struct yenta_socket *socket = (struct yenta_socket *) dev_id;
9691da177e4SLinus Torvalds 	u8 csc;
9701da177e4SLinus Torvalds 	u32 cb_event;
9711da177e4SLinus Torvalds 
9721da177e4SLinus Torvalds 	/* Clear interrupt status for the event */
9731da177e4SLinus Torvalds 	cb_event = cb_readl(socket, CB_SOCKET_EVENT);
9741da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_EVENT, -1);
9751da177e4SLinus Torvalds 	csc = exca_readb(socket, I365_CSC);
9761da177e4SLinus Torvalds 
9771da177e4SLinus Torvalds 	if (cb_event || csc) {
9781da177e4SLinus Torvalds 		socket->probe_status = 1;
9791da177e4SLinus Torvalds 		return IRQ_HANDLED;
9801da177e4SLinus Torvalds 	}
9811da177e4SLinus Torvalds 
9821da177e4SLinus Torvalds 	return IRQ_NONE;
9831da177e4SLinus Torvalds }
9841da177e4SLinus Torvalds 
9851da177e4SLinus Torvalds /* probes the PCI interrupt, use only on override functions */
yenta_probe_cb_irq(struct yenta_socket * socket)9861da177e4SLinus Torvalds static int yenta_probe_cb_irq(struct yenta_socket *socket)
9871da177e4SLinus Torvalds {
98802caa56eSDominik Brodowski 	u8 reg = 0;
98928ca8dd7SJens Künzer 
9901da177e4SLinus Torvalds 	if (!socket->cb_irq)
9911da177e4SLinus Torvalds 		return -1;
9921da177e4SLinus Torvalds 
9931da177e4SLinus Torvalds 	socket->probe_status = 0;
9941da177e4SLinus Torvalds 
995dace1453SThomas Gleixner 	if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) {
996f2e6cf76SJoe Perches 		dev_warn(&socket->dev->dev,
997dd797d81SDominik Brodowski 			 "request_irq() in yenta_probe_cb_irq() failed!\n");
9981da177e4SLinus Torvalds 		return -1;
9991da177e4SLinus Torvalds 	}
10001da177e4SLinus Torvalds 
10011da177e4SLinus Torvalds 	/* generate interrupt, wait */
100202caa56eSDominik Brodowski 	if (!socket->dev->irq)
100328ca8dd7SJens Künzer 		reg = exca_readb(socket, I365_CSCINT);
100428ca8dd7SJens Künzer 	exca_writeb(socket, I365_CSCINT, reg | I365_CSC_STSCHG);
10051da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_EVENT, -1);
10061da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK);
10071da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS);
10081da177e4SLinus Torvalds 
10091da177e4SLinus Torvalds 	msleep(100);
10101da177e4SLinus Torvalds 
10111da177e4SLinus Torvalds 	/* disable interrupts */
10121da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_MASK, 0);
101328ca8dd7SJens Künzer 	exca_writeb(socket, I365_CSCINT, reg);
10141da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_EVENT, -1);
10151da177e4SLinus Torvalds 	exca_readb(socket, I365_CSC);
10161da177e4SLinus Torvalds 
10171da177e4SLinus Torvalds 	free_irq(socket->cb_irq, socket);
10181da177e4SLinus Torvalds 
10191da177e4SLinus Torvalds 	return (int) socket->probe_status;
10201da177e4SLinus Torvalds }
10211da177e4SLinus Torvalds 
102263e7ebd0SDaniel Ritz #endif /* CONFIG_YENTA_TI */
10231da177e4SLinus Torvalds 
10241da177e4SLinus Torvalds 
10251da177e4SLinus Torvalds /*
10261da177e4SLinus Torvalds  * Set static data that doesn't need re-initializing..
10271da177e4SLinus Torvalds  */
yenta_get_socket_capabilities(struct yenta_socket * socket,u32 isa_irq_mask)10281da177e4SLinus Torvalds static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask)
10291da177e4SLinus Torvalds {
10301da177e4SLinus Torvalds 	socket->socket.pci_irq = socket->cb_irq;
1031fa912bcbSDaniel Ritz 	if (isa_probe)
10321da177e4SLinus Torvalds 		socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask);
1033fa912bcbSDaniel Ritz 	else
1034fa912bcbSDaniel Ritz 		socket->socket.irq_mask = 0;
10351da177e4SLinus Torvalds 
1036f2e6cf76SJoe Perches 	dev_info(&socket->dev->dev, "ISA IRQ mask 0x%04x, PCI irq %d\n",
10371da177e4SLinus Torvalds 		 socket->socket.irq_mask, socket->cb_irq);
10381da177e4SLinus Torvalds }
10391da177e4SLinus Torvalds 
10401da177e4SLinus Torvalds /*
10411da177e4SLinus Torvalds  * Initialize the standard cardbus registers
10421da177e4SLinus Torvalds  */
yenta_config_init(struct yenta_socket * socket)10431da177e4SLinus Torvalds static void yenta_config_init(struct yenta_socket *socket)
10441da177e4SLinus Torvalds {
10451da177e4SLinus Torvalds 	u16 bridge;
10461da177e4SLinus Torvalds 	struct pci_dev *dev = socket->dev;
10478e5d17ebSDominik Brodowski 	struct pci_bus_region region;
10481da177e4SLinus Torvalds 
1049fc279850SYinghai Lu 	pcibios_resource_to_bus(socket->dev->bus, &region, &dev->resource[0]);
10501da177e4SLinus Torvalds 
10511da177e4SLinus Torvalds 	config_writel(socket, CB_LEGACY_MODE_BASE, 0);
10528e5d17ebSDominik Brodowski 	config_writel(socket, PCI_BASE_ADDRESS_0, region.start);
10531da177e4SLinus Torvalds 	config_writew(socket, PCI_COMMAND,
10541da177e4SLinus Torvalds 			PCI_COMMAND_IO |
10551da177e4SLinus Torvalds 			PCI_COMMAND_MEMORY |
10561da177e4SLinus Torvalds 			PCI_COMMAND_MASTER |
10571da177e4SLinus Torvalds 			PCI_COMMAND_WAIT);
10581da177e4SLinus Torvalds 
10591da177e4SLinus Torvalds 	/* MAGIC NUMBERS! Fixme */
10601da177e4SLinus Torvalds 	config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4);
10611da177e4SLinus Torvalds 	config_writeb(socket, PCI_LATENCY_TIMER, 168);
10621da177e4SLinus Torvalds 	config_writel(socket, PCI_PRIMARY_BUS,
10631da177e4SLinus Torvalds 		(176 << 24) |			   /* sec. latency timer */
1064b918c62eSYinghai Lu 		((unsigned int)dev->subordinate->busn_res.end << 16) | /* subordinate bus */
1065b918c62eSYinghai Lu 		((unsigned int)dev->subordinate->busn_res.start << 8) |  /* secondary bus */
10661da177e4SLinus Torvalds 		dev->subordinate->primary);		   /* primary bus */
10671da177e4SLinus Torvalds 
10681da177e4SLinus Torvalds 	/*
10691da177e4SLinus Torvalds 	 * Set up the bridging state:
10701da177e4SLinus Torvalds 	 *  - enable write posting.
10711da177e4SLinus Torvalds 	 *  - memory window 0 prefetchable, window 1 non-prefetchable
10721da177e4SLinus Torvalds 	 *  - PCI interrupts enabled if a PCI interrupt exists..
10731da177e4SLinus Torvalds 	 */
10741da177e4SLinus Torvalds 	bridge = config_readw(socket, CB_BRIDGE_CONTROL);
1075a413c090SDaniel Ritz 	bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN);
1076a413c090SDaniel Ritz 	bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN;
10771da177e4SLinus Torvalds 	config_writew(socket, CB_BRIDGE_CONTROL, bridge);
10781da177e4SLinus Torvalds }
10791da177e4SLinus Torvalds 
1080b435261bSBernhard Kaindl /**
108166005216SRandy Dunlap  * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge
1082b435261bSBernhard Kaindl  * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to
1083b435261bSBernhard Kaindl  *
1084b435261bSBernhard Kaindl  * Checks if devices on the bus which the CardBus bridge bridges to would be
1085b435261bSBernhard Kaindl  * invisible during PCI scans because of a misconfigured subordinate number
1086b435261bSBernhard Kaindl  * of the parent brige - some BIOSes seem to be too lazy to set it right.
1087b435261bSBernhard Kaindl  * Does the fixup carefully by checking how far it can go without conflicts.
1088631dd1a8SJustin P. Mattock  * See http://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information.
1089b435261bSBernhard Kaindl  */
yenta_fixup_parent_bridge(struct pci_bus * cardbus_bridge)1090b435261bSBernhard Kaindl static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge)
1091b435261bSBernhard Kaindl {
1092560698e9SYijing Wang 	struct pci_bus *sibling;
1093b435261bSBernhard Kaindl 	unsigned char upper_limit;
1094b435261bSBernhard Kaindl 	/*
1095b435261bSBernhard Kaindl 	 * We only check and fix the parent bridge: All systems which need
1096b435261bSBernhard Kaindl 	 * this fixup that have been reviewed are laptops and the only bridge
1097b435261bSBernhard Kaindl 	 * which needed fixing was the parent bridge of the CardBus bridge:
1098b435261bSBernhard Kaindl 	 */
1099b435261bSBernhard Kaindl 	struct pci_bus *bridge_to_fix = cardbus_bridge->parent;
1100b435261bSBernhard Kaindl 
1101b435261bSBernhard Kaindl 	/* Check bus numbers are already set up correctly: */
1102b918c62eSYinghai Lu 	if (bridge_to_fix->busn_res.end >= cardbus_bridge->busn_res.end)
1103b435261bSBernhard Kaindl 		return; /* The subordinate number is ok, nothing to do */
1104b435261bSBernhard Kaindl 
1105b435261bSBernhard Kaindl 	if (!bridge_to_fix->parent)
1106b435261bSBernhard Kaindl 		return; /* Root bridges are ok */
1107b435261bSBernhard Kaindl 
1108b435261bSBernhard Kaindl 	/* stay within the limits of the bus range of the parent: */
1109b918c62eSYinghai Lu 	upper_limit = bridge_to_fix->parent->busn_res.end;
1110b435261bSBernhard Kaindl 
1111560698e9SYijing Wang 	/* check the bus ranges of all sibling bridges to prevent overlap */
1112560698e9SYijing Wang 	list_for_each_entry(sibling, &bridge_to_fix->parent->children,
1113560698e9SYijing Wang 			node) {
1114b435261bSBernhard Kaindl 		/*
1115560698e9SYijing Wang 		 * If the sibling has a higher secondary bus number
1116b435261bSBernhard Kaindl 		 * and it's secondary is equal or smaller than our
1117b435261bSBernhard Kaindl 		 * current upper limit, set the new upper limit to
1118560698e9SYijing Wang 		 * the bus number below the sibling's range:
1119b435261bSBernhard Kaindl 		 */
1120560698e9SYijing Wang 		if (sibling->busn_res.start > bridge_to_fix->busn_res.end
1121560698e9SYijing Wang 		    && sibling->busn_res.start <= upper_limit)
1122560698e9SYijing Wang 			upper_limit = sibling->busn_res.start - 1;
1123b435261bSBernhard Kaindl 	}
1124b435261bSBernhard Kaindl 
1125b435261bSBernhard Kaindl 	/* Show that the wanted subordinate number is not possible: */
1126b918c62eSYinghai Lu 	if (cardbus_bridge->busn_res.end > upper_limit)
1127f2e6cf76SJoe Perches 		dev_warn(&cardbus_bridge->dev,
1128f2e6cf76SJoe Perches 			 "Upper limit for fixing this bridge's parent bridge: #%02x\n",
1129f2e6cf76SJoe Perches 			 upper_limit);
1130b435261bSBernhard Kaindl 
1131b435261bSBernhard Kaindl 	/* If we have room to increase the bridge's subordinate number, */
1132b918c62eSYinghai Lu 	if (bridge_to_fix->busn_res.end < upper_limit) {
1133b435261bSBernhard Kaindl 
1134b435261bSBernhard Kaindl 		/* use the highest number of the hidden bus, within limits */
1135b435261bSBernhard Kaindl 		unsigned char subordinate_to_assign =
1136b918c62eSYinghai Lu 			min_t(int, cardbus_bridge->busn_res.end, upper_limit);
1137b435261bSBernhard Kaindl 
1138f2e6cf76SJoe Perches 		dev_info(&bridge_to_fix->dev,
1139f2e6cf76SJoe Perches 			 "Raising subordinate bus# of parent bus (#%02x) from #%02x to #%02x\n",
1140b435261bSBernhard Kaindl 			 bridge_to_fix->number,
1141f2e6cf76SJoe Perches 			 (int)bridge_to_fix->busn_res.end,
1142f2e6cf76SJoe Perches 			 subordinate_to_assign);
1143b435261bSBernhard Kaindl 
1144b435261bSBernhard Kaindl 		/* Save the new subordinate in the bus struct of the bridge */
1145b918c62eSYinghai Lu 		bridge_to_fix->busn_res.end = subordinate_to_assign;
1146b435261bSBernhard Kaindl 
1147b435261bSBernhard Kaindl 		/* and update the PCI config space with the new subordinate */
1148b435261bSBernhard Kaindl 		pci_write_config_byte(bridge_to_fix->self,
1149b918c62eSYinghai Lu 			PCI_SUBORDINATE_BUS, bridge_to_fix->busn_res.end);
1150b435261bSBernhard Kaindl 	}
1151b435261bSBernhard Kaindl }
1152b435261bSBernhard Kaindl 
11531da177e4SLinus Torvalds /*
11541da177e4SLinus Torvalds  * Initialize a cardbus controller. Make sure we have a usable
11551da177e4SLinus Torvalds  * interrupt, and that we can map the cardbus area. Fill in the
11561da177e4SLinus Torvalds  * socket information structure..
11571da177e4SLinus Torvalds  */
yenta_probe(struct pci_dev * dev,const struct pci_device_id * id)115834cdf25aSBill Pemberton static int yenta_probe(struct pci_dev *dev, const struct pci_device_id *id)
11591da177e4SLinus Torvalds {
11601da177e4SLinus Torvalds 	struct yenta_socket *socket;
11611da177e4SLinus Torvalds 	int ret;
11621da177e4SLinus Torvalds 
1163c7fb0b35SIvan Kokshaysky 	/*
1164c7fb0b35SIvan Kokshaysky 	 * If we failed to assign proper bus numbers for this cardbus
1165c7fb0b35SIvan Kokshaysky 	 * controller during PCI probe, its subordinate pci_bus is NULL.
1166c7fb0b35SIvan Kokshaysky 	 * Bail out if so.
1167c7fb0b35SIvan Kokshaysky 	 */
1168c7fb0b35SIvan Kokshaysky 	if (!dev->subordinate) {
1169f2e6cf76SJoe Perches 		dev_err(&dev->dev, "no bus associated! (try 'pci=assign-busses')\n");
1170c7fb0b35SIvan Kokshaysky 		return -ENODEV;
1171c7fb0b35SIvan Kokshaysky 	}
1172c7fb0b35SIvan Kokshaysky 
11738084b372SDominik Brodowski 	socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL);
11741da177e4SLinus Torvalds 	if (!socket)
11751da177e4SLinus Torvalds 		return -ENOMEM;
11761da177e4SLinus Torvalds 
11771da177e4SLinus Torvalds 	/* prepare pcmcia_socket */
11781da177e4SLinus Torvalds 	socket->socket.ops = &yenta_socket_operations;
11791da177e4SLinus Torvalds 	socket->socket.resource_ops = &pccard_nonstatic_ops;
118087373318SGreg Kroah-Hartman 	socket->socket.dev.parent = &dev->dev;
11811da177e4SLinus Torvalds 	socket->socket.driver_data = socket;
11821da177e4SLinus Torvalds 	socket->socket.owner = THIS_MODULE;
11835bc6b68aSRussell King 	socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
11845bc6b68aSRussell King 	socket->socket.map_size = 0x1000;
11855bc6b68aSRussell King 	socket->socket.cb_dev = dev;
11861da177e4SLinus Torvalds 
11871da177e4SLinus Torvalds 	/* prepare struct yenta_socket */
11881da177e4SLinus Torvalds 	socket->dev = dev;
11891da177e4SLinus Torvalds 	pci_set_drvdata(dev, socket);
11901da177e4SLinus Torvalds 
11911da177e4SLinus Torvalds 	/*
11921da177e4SLinus Torvalds 	 * Do some basic sanity checking..
11931da177e4SLinus Torvalds 	 */
11941da177e4SLinus Torvalds 	if (pci_enable_device(dev)) {
11951da177e4SLinus Torvalds 		ret = -EBUSY;
11961da177e4SLinus Torvalds 		goto free;
11971da177e4SLinus Torvalds 	}
11981da177e4SLinus Torvalds 
11991da177e4SLinus Torvalds 	ret = pci_request_regions(dev, "yenta_socket");
12001da177e4SLinus Torvalds 	if (ret)
12011da177e4SLinus Torvalds 		goto disable;
12021da177e4SLinus Torvalds 
12031da177e4SLinus Torvalds 	if (!pci_resource_start(dev, 0)) {
1204f2e6cf76SJoe Perches 		dev_err(&dev->dev, "No cardbus resource!\n");
12051da177e4SLinus Torvalds 		ret = -ENODEV;
12061da177e4SLinus Torvalds 		goto release;
12071da177e4SLinus Torvalds 	}
12081da177e4SLinus Torvalds 
12091da177e4SLinus Torvalds 	/*
12101da177e4SLinus Torvalds 	 * Ok, start setup.. Map the cardbus registers,
12111da177e4SLinus Torvalds 	 * and request the IRQ.
12121da177e4SLinus Torvalds 	 */
12131da177e4SLinus Torvalds 	socket->base = ioremap(pci_resource_start(dev, 0), 0x1000);
12141da177e4SLinus Torvalds 	if (!socket->base) {
12151da177e4SLinus Torvalds 		ret = -ENOMEM;
12161da177e4SLinus Torvalds 		goto release;
12171da177e4SLinus Torvalds 	}
12181da177e4SLinus Torvalds 
12191da177e4SLinus Torvalds 	/*
12201da177e4SLinus Torvalds 	 * report the subsystem vendor and device for help debugging
12211da177e4SLinus Torvalds 	 * the irq stuff...
12221da177e4SLinus Torvalds 	 */
1223f2e6cf76SJoe Perches 	dev_info(&dev->dev, "CardBus bridge found [%04x:%04x]\n",
1224dd797d81SDominik Brodowski 		 dev->subsystem_vendor, dev->subsystem_device);
12251da177e4SLinus Torvalds 
12261da177e4SLinus Torvalds 	yenta_config_init(socket);
12271da177e4SLinus Torvalds 
12281da177e4SLinus Torvalds 	/* Disable all events */
12291da177e4SLinus Torvalds 	cb_writel(socket, CB_SOCKET_MASK, 0x0);
12301da177e4SLinus Torvalds 
12311da177e4SLinus Torvalds 	/* Set up the bridge regions.. */
12321da177e4SLinus Torvalds 	yenta_allocate_resources(socket);
12331da177e4SLinus Torvalds 
12341da177e4SLinus Torvalds 	socket->cb_irq = dev->irq;
12351da177e4SLinus Torvalds 
12361da177e4SLinus Torvalds 	/* Do we have special options for the device? */
12371da177e4SLinus Torvalds 	if (id->driver_data != CARDBUS_TYPE_DEFAULT &&
12381da177e4SLinus Torvalds 	    id->driver_data < ARRAY_SIZE(cardbus_type)) {
12391da177e4SLinus Torvalds 		socket->type = &cardbus_type[id->driver_data];
12401da177e4SLinus Torvalds 
12411da177e4SLinus Torvalds 		ret = socket->type->override(socket);
12421da177e4SLinus Torvalds 		if (ret < 0)
12431da177e4SLinus Torvalds 			goto unmap;
12441da177e4SLinus Torvalds 	}
12451da177e4SLinus Torvalds 
12461da177e4SLinus Torvalds 	/* We must finish initialization here */
12471da177e4SLinus Torvalds 
1248dace1453SThomas Gleixner 	if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) {
12491da177e4SLinus Torvalds 		/* No IRQ or request_irq failed. Poll */
12501da177e4SLinus Torvalds 		socket->cb_irq = 0; /* But zero is a valid IRQ number. */
125141760d0eSKees Cook 		timer_setup(&socket->poll_timer, yenta_interrupt_wrapper, 0);
125203b225b1SVaishali Thakkar 		mod_timer(&socket->poll_timer, jiffies + HZ);
1253f2e6cf76SJoe Perches 		dev_info(&dev->dev,
1254f2e6cf76SJoe Perches 			 "no PCI IRQ, CardBus support disabled for this socket.\n");
1255f2e6cf76SJoe Perches 		dev_info(&dev->dev,
1256f2e6cf76SJoe Perches 			 "check your BIOS CardBus, BIOS IRQ or ACPI settings.\n");
12575bc6b68aSRussell King 	} else {
12585bc6b68aSRussell King 		socket->socket.features |= SS_CAP_CARDBUS;
12591da177e4SLinus Torvalds 	}
12601da177e4SLinus Torvalds 
12611da177e4SLinus Torvalds 	/* Figure out what the dang thing can do for the PCMCIA layer... */
1262fa912bcbSDaniel Ritz 	yenta_interrogate(socket);
12631da177e4SLinus Torvalds 	yenta_get_socket_capabilities(socket, isa_interrupts);
1264f2e6cf76SJoe Perches 	dev_info(&dev->dev, "Socket status: %08x\n",
1265f2e6cf76SJoe Perches 		 cb_readl(socket, CB_SOCKET_STATE));
12661da177e4SLinus Torvalds 
1267b435261bSBernhard Kaindl 	yenta_fixup_parent_bridge(dev->subordinate);
1268b435261bSBernhard Kaindl 
12691da177e4SLinus Torvalds 	/* Register it with the pcmcia layer.. */
12701da177e4SLinus Torvalds 	ret = pcmcia_register_socket(&socket->socket);
1271d19319afSTakeshi Yoshimura 	if (ret)
1272d19319afSTakeshi Yoshimura 		goto free_irq;
1273d19319afSTakeshi Yoshimura 
1274030ee39cSLinus Torvalds 	/* Add the yenta register attributes */
12754deb7c1eSJeff Garzik 	ret = device_create_file(&dev->dev, &dev_attr_yenta_registers);
1276d19319afSTakeshi Yoshimura 	if (ret)
1277d19319afSTakeshi Yoshimura 		goto unregister_socket;
1278d19319afSTakeshi Yoshimura 
1279d19319afSTakeshi Yoshimura 	return ret;
12804deb7c1eSJeff Garzik 
12814deb7c1eSJeff Garzik 	/* error path... */
1282d19319afSTakeshi Yoshimura  unregister_socket:
12834deb7c1eSJeff Garzik 	pcmcia_unregister_socket(&socket->socket);
1284d19319afSTakeshi Yoshimura  free_irq:
1285d19319afSTakeshi Yoshimura 	if (socket->cb_irq)
1286d19319afSTakeshi Yoshimura 		free_irq(socket->cb_irq, socket);
1287d19319afSTakeshi Yoshimura 	else
1288*292a089dSSteven Rostedt (Google) 		timer_shutdown_sync(&socket->poll_timer);
12891da177e4SLinus Torvalds  unmap:
12901da177e4SLinus Torvalds 	iounmap(socket->base);
1291d19319afSTakeshi Yoshimura 	yenta_free_resources(socket);
12921da177e4SLinus Torvalds  release:
12931da177e4SLinus Torvalds 	pci_release_regions(dev);
12941da177e4SLinus Torvalds  disable:
12951da177e4SLinus Torvalds 	pci_disable_device(dev);
12961da177e4SLinus Torvalds  free:
1297d19319afSTakeshi Yoshimura 	pci_set_drvdata(dev, NULL);
12981da177e4SLinus Torvalds 	kfree(socket);
12991da177e4SLinus Torvalds 	return ret;
13001da177e4SLinus Torvalds }
13011da177e4SLinus Torvalds 
1302579f3a6dSPaul E. McKenney #ifdef CONFIG_PM_SLEEP
yenta_dev_suspend_noirq(struct device * dev)13030c570cdeSRafael J. Wysocki static int yenta_dev_suspend_noirq(struct device *dev)
13041da177e4SLinus Torvalds {
13050c570cdeSRafael J. Wysocki 	struct pci_dev *pdev = to_pci_dev(dev);
13060c570cdeSRafael J. Wysocki 	struct yenta_socket *socket = pci_get_drvdata(pdev);
13071da177e4SLinus Torvalds 
13080c570cdeSRafael J. Wysocki 	if (!socket)
1309d7646f76SDominik Brodowski 		return 0;
13100c570cdeSRafael J. Wysocki 
13111da177e4SLinus Torvalds 	if (socket->type && socket->type->save_state)
13121da177e4SLinus Torvalds 		socket->type->save_state(socket);
13131da177e4SLinus Torvalds 
13140c570cdeSRafael J. Wysocki 	pci_save_state(pdev);
13150c570cdeSRafael J. Wysocki 	pci_read_config_dword(pdev, 16*4, &socket->saved_state[0]);
13160c570cdeSRafael J. Wysocki 	pci_read_config_dword(pdev, 17*4, &socket->saved_state[1]);
13170c570cdeSRafael J. Wysocki 	pci_disable_device(pdev);
13181da177e4SLinus Torvalds 
1319d7646f76SDominik Brodowski 	return 0;
13201da177e4SLinus Torvalds }
13211da177e4SLinus Torvalds 
yenta_dev_resume_noirq(struct device * dev)13220c570cdeSRafael J. Wysocki static int yenta_dev_resume_noirq(struct device *dev)
13231da177e4SLinus Torvalds {
13240c570cdeSRafael J. Wysocki 	struct pci_dev *pdev = to_pci_dev(dev);
13250c570cdeSRafael J. Wysocki 	struct yenta_socket *socket = pci_get_drvdata(pdev);
13260c570cdeSRafael J. Wysocki 	int ret;
13271da177e4SLinus Torvalds 
13280c570cdeSRafael J. Wysocki 	if (!socket)
13290c570cdeSRafael J. Wysocki 		return 0;
13304deb7c1eSJeff Garzik 
13310c570cdeSRafael J. Wysocki 	pci_write_config_dword(pdev, 16*4, socket->saved_state[0]);
13320c570cdeSRafael J. Wysocki 	pci_write_config_dword(pdev, 17*4, socket->saved_state[1]);
13334deb7c1eSJeff Garzik 
13340c570cdeSRafael J. Wysocki 	ret = pci_enable_device(pdev);
13350c570cdeSRafael J. Wysocki 	if (ret)
13360c570cdeSRafael J. Wysocki 		return ret;
13374deb7c1eSJeff Garzik 
13380c570cdeSRafael J. Wysocki 	pci_set_master(pdev);
13391da177e4SLinus Torvalds 
13401da177e4SLinus Torvalds 	if (socket->type && socket->type->restore_state)
13411da177e4SLinus Torvalds 		socket->type->restore_state(socket);
13420c570cdeSRafael J. Wysocki 
13439905d1b4SRafael J. Wysocki 	return 0;
13441da177e4SLinus Torvalds }
13451da177e4SLinus Torvalds 
134647145210SAlexey Dobriyan static const struct dev_pm_ops yenta_pm_ops = {
13473daaf2c7SCai Huoqing 	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(yenta_dev_suspend_noirq, yenta_dev_resume_noirq)
13480c570cdeSRafael J. Wysocki };
13490c570cdeSRafael J. Wysocki 
13500c570cdeSRafael J. Wysocki #define YENTA_PM_OPS	(&yenta_pm_ops)
13510c570cdeSRafael J. Wysocki #else
13520c570cdeSRafael J. Wysocki #define YENTA_PM_OPS	NULL
1353f237de58SAlexey Dobriyan #endif
13541da177e4SLinus Torvalds 
13551da177e4SLinus Torvalds #define CB_ID(vend, dev, type)				\
13561da177e4SLinus Torvalds 	{						\
13571da177e4SLinus Torvalds 		.vendor		= vend,			\
13581da177e4SLinus Torvalds 		.device		= dev,			\
13591da177e4SLinus Torvalds 		.subvendor	= PCI_ANY_ID,		\
13601da177e4SLinus Torvalds 		.subdevice	= PCI_ANY_ID,		\
13611da177e4SLinus Torvalds 		.class		= PCI_CLASS_BRIDGE_CARDBUS << 8, \
13621da177e4SLinus Torvalds 		.class_mask	= ~0,			\
13631da177e4SLinus Torvalds 		.driver_data	= CARDBUS_TYPE_##type,	\
13641da177e4SLinus Torvalds 	}
13651da177e4SLinus Torvalds 
13660178a7a5SGreg Kroah-Hartman static const struct pci_device_id yenta_table[] = {
13671da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI),
13681da177e4SLinus Torvalds 
13691da177e4SLinus Torvalds 	/*
13701da177e4SLinus Torvalds 	 * TBD: Check if these TI variants can use more
13711da177e4SLinus Torvalds 	 * advanced overrides instead.  (I can't get the
13721da177e4SLinus Torvalds 	 * data sheets for these devices. --rmk)
13731da177e4SLinus Torvalds 	 */
137463e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_TI
13751da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI),
13761da177e4SLinus Torvalds 
13771da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X),
13781da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X),
13791da177e4SLinus Torvalds 
13801da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX),
13811da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX),
13821da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX),
13831da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX),
13841da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX),
13851da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX),
13861da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX),
13871da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX),
13881da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX),
13891da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX),
13901da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX),
13911da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX),
13921da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX),
13931da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX),
13941da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX),
13951da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX),
13961da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX),
13971da177e4SLinus Torvalds 
13981da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250),
13991da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250),
14001da177e4SLinus Torvalds 
14016c1a10dbSDaniel Ritz 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX),
14026c1a10dbSDaniel Ritz 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX),
140359e35ba1SAlex Williamson 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX),
14046c1a10dbSDaniel Ritz 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX),
14056c1a10dbSDaniel Ritz 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX),
14066c1a10dbSDaniel Ritz 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX),
14076c1a10dbSDaniel Ritz 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX),
14086c1a10dbSDaniel Ritz 	CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX),
14096c1a10dbSDaniel Ritz 
1410f3d4ae43SMichal Pecio 	CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, ENE),
1411f3d4ae43SMichal Pecio 	CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, ENE),
1412f3d4ae43SMichal Pecio 	CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, ENE),
1413f3d4ae43SMichal Pecio 	CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, ENE),
14148c3520d4SDaniel Ritz 	CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE),
14158c3520d4SDaniel Ritz 	CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE),
14168c3520d4SDaniel Ritz 	CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE),
14178c3520d4SDaniel Ritz 	CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE),
141863e7ebd0SDaniel Ritz #endif /* CONFIG_YENTA_TI */
14191da177e4SLinus Torvalds 
142063e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_RICOH
14211da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH),
14221da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH),
14231da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH),
14241da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH),
14251da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH),
142663e7ebd0SDaniel Ritz #endif
14271da177e4SLinus Torvalds 
142863e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_TOSHIBA
1429ea2f1590SDaniel Ritz 	CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95),
14301da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97),
14311da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97),
143263e7ebd0SDaniel Ritz #endif
14331da177e4SLinus Torvalds 
143463e7ebd0SDaniel Ritz #ifdef CONFIG_YENTA_O2
14351da177e4SLinus Torvalds 	CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO),
143663e7ebd0SDaniel Ritz #endif
14371da177e4SLinus Torvalds 
14381da177e4SLinus Torvalds 	/* match any cardbus bridge */
14391da177e4SLinus Torvalds 	CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),
14401da177e4SLinus Torvalds 	{ /* all zeroes */ }
14411da177e4SLinus Torvalds };
14421da177e4SLinus Torvalds MODULE_DEVICE_TABLE(pci, yenta_table);
14431da177e4SLinus Torvalds 
14441da177e4SLinus Torvalds 
14451da177e4SLinus Torvalds static struct pci_driver yenta_cardbus_driver = {
14461da177e4SLinus Torvalds 	.name		= "yenta_cardbus",
14471da177e4SLinus Torvalds 	.id_table	= yenta_table,
14481da177e4SLinus Torvalds 	.probe		= yenta_probe,
144996364e3aSBill Pemberton 	.remove		= yenta_close,
14500c570cdeSRafael J. Wysocki 	.driver.pm	= YENTA_PM_OPS,
14511da177e4SLinus Torvalds };
14521da177e4SLinus Torvalds 
14537d19143fSLibo Chen module_pci_driver(yenta_cardbus_driver);
14541da177e4SLinus Torvalds 
14551da177e4SLinus Torvalds MODULE_LICENSE("GPL");
1456