1 /*======================================================================
3 Device driver for Intel 82365 and compatible PC Card controllers.
5 i82365.c 1.265 1999/11/10 18:36:21
7 The contents of this file are subject to the Mozilla Public
8 License Version 1.1 (the "License"); you may not use this file
9 except in compliance with the License. You may obtain a copy of
10 the License at http://www.mozilla.org/MPL/
12 Software distributed under the License is distributed on an "AS
13 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14 implied. See the License for the specific language governing
15 rights and limitations under the License.
17 The initial developer of the original code is David A. Hinds
18 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
19 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
21 Alternatively, the contents of this file may be used under the
22 terms of the GNU General Public License version 2 (the "GPL"), in which
23 case the provisions of the GPL are applicable instead of the
24 above. If you wish to allow the use of your version of this file
25 only under the terms of the GPL and not to allow others to use
26 your version of this file under the MPL, indicate your decision
27 by deleting the provisions above and replace them with the notice
28 and other provisions required by the GPL. If you do not delete
29 the provisions above, a recipient may use your version of this
30 file under either the MPL or the GPL.
32 ======================================================================*/
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/init.h>
37 #include <linux/types.h>
38 #include <linux/fcntl.h>
39 #include <linux/string.h>
40 #include <linux/kernel.h>
41 #include <linux/errno.h>
42 #include <linux/timer.h>
43 #include <linux/ioport.h>
44 #include <linux/delay.h>
45 #include <linux/workqueue.h>
46 #include <linux/interrupt.h>
47 #include <linux/platform_device.h>
48 #include <linux/bitops.h>
51 #include <asm/system.h>
53 #include <pcmcia/ss.h>
55 #include <linux/isapnp.h>
57 /* ISA-bus controllers */
64 static irqreturn_t i365_count_irq(int, void *);
65 static inline int _check_irq(int irq, int flags)
67 if (request_irq(irq, i365_count_irq, flags, "x", i365_count_irq) != 0)
69 free_irq(irq, i365_count_irq);
73 /*====================================================================*/
75 /* Parameters that can be set with 'insmod' */
77 /* Default base address for i82365sl and other ISA chips */
78 static unsigned long i365_base = 0x3e0;
79 /* Should we probe at 0x3e2 for an extra ISA controller? */
80 static int extra_sockets = 0;
81 /* Specify a socket number to ignore */
82 static int ignore = -1;
83 /* Bit map or list of interrupts to choose from */
84 static u_int irq_mask = 0xffff;
85 static int irq_list[16];
86 static unsigned int irq_list_count;
87 /* The card status change interrupt -- 0 means autoselect */
88 static int cs_irq = 0;
90 /* Probe for safe interrupts? */
91 static int do_scan = 1;
92 /* Poll status interval -- 0 means default to interrupt */
93 static int poll_interval = 0;
94 /* External clock time, in nanoseconds. 120 ns = 8.33 MHz */
95 static int cycle_time = 120;
98 static int has_dma = -1;
99 static int has_led = -1;
100 static int has_ring = -1;
101 static int dynamic_mode = 0;
102 static int freq_bypass = -1;
103 static int setup_time = -1;
104 static int cmd_time = -1;
105 static int recov_time = -1;
108 static int async_clock = -1;
109 static int cable_mode = -1;
110 static int wakeup = 0;
112 module_param(i365_base, ulong, 0444);
113 module_param(ignore, int, 0444);
114 module_param(extra_sockets, int, 0444);
115 module_param(irq_mask, int, 0444);
116 module_param_array(irq_list, int, &irq_list_count, 0444);
117 module_param(cs_irq, int, 0444);
118 module_param(async_clock, int, 0444);
119 module_param(cable_mode, int, 0444);
120 module_param(wakeup, int, 0444);
122 module_param(do_scan, int, 0444);
123 module_param(poll_interval, int, 0444);
124 module_param(cycle_time, int, 0444);
125 module_param(has_dma, int, 0444);
126 module_param(has_led, int, 0444);
127 module_param(has_ring, int, 0444);
128 module_param(dynamic_mode, int, 0444);
129 module_param(freq_bypass, int, 0444);
130 module_param(setup_time, int, 0444);
131 module_param(cmd_time, int, 0444);
132 module_param(recov_time, int, 0444);
134 /*====================================================================*/
136 typedef struct cirrus_state_t {
141 typedef struct vg46x_state_t {
145 struct i82365_socket {
147 struct pcmcia_socket socket;
153 cirrus_state_t cirrus;
158 /* Where we keep track of our sockets... */
159 static int sockets = 0;
160 static struct i82365_socket socket[8] = {
164 /* Default ISA interrupt mask */
165 #define I365_MASK 0xdeb8 /* irq 15,14,12,11,10,9,7,5,4,3 */
168 static DEFINE_SPINLOCK(isa_lock);
169 #define ISA_LOCK(n, f) spin_lock_irqsave(&isa_lock, f)
170 #define ISA_UNLOCK(n, f) spin_unlock_irqrestore(&isa_lock, f)
172 static struct timer_list poll_timer;
174 /*====================================================================*/
176 /* These definitions must match the pcic table! */
177 typedef enum pcic_id {
178 IS_I82365A, IS_I82365B, IS_I82365DF,
179 IS_IBM, IS_RF5Cx96, IS_VLSI, IS_VG468, IS_VG469,
180 IS_PD6710, IS_PD672X, IS_VT83C469,
183 /* Flags for classifying groups of controllers */
184 #define IS_VADEM 0x0001
185 #define IS_CIRRUS 0x0002
186 #define IS_VIA 0x0010
187 #define IS_UNKNOWN 0x0400
188 #define IS_VG_PWR 0x0800
189 #define IS_DF_PWR 0x1000
190 #define IS_REGISTERED 0x2000
191 #define IS_ALIVE 0x8000
193 typedef struct pcic_t {
198 static pcic_t pcic[] = {
199 { "Intel i82365sl A step", 0 },
200 { "Intel i82365sl B step", 0 },
201 { "Intel i82365sl DF", IS_DF_PWR },
203 { "Ricoh RF5C296/396", 0 },
204 { "VLSI 82C146", 0 },
205 { "Vadem VG-468", IS_VADEM },
206 { "Vadem VG-469", IS_VADEM|IS_VG_PWR },
207 { "Cirrus PD6710", IS_CIRRUS },
208 { "Cirrus PD672x", IS_CIRRUS },
209 { "VIA VT83C469", IS_CIRRUS|IS_VIA },
212 #define PCIC_COUNT (sizeof(pcic)/sizeof(pcic_t))
214 /*====================================================================*/
216 static DEFINE_SPINLOCK(bus_lock);
218 static u_char i365_get(u_short sock, u_short reg)
221 spin_lock_irqsave(&bus_lock,flags);
223 unsigned int port = socket[sock].ioaddr;
225 reg = I365_REG(socket[sock].psock, reg);
226 outb(reg, port); val = inb(port+1);
227 spin_unlock_irqrestore(&bus_lock,flags);
232 static void i365_set(u_short sock, u_short reg, u_char data)
235 spin_lock_irqsave(&bus_lock,flags);
237 unsigned int port = socket[sock].ioaddr;
238 u_char val = I365_REG(socket[sock].psock, reg);
239 outb(val, port); outb(data, port+1);
240 spin_unlock_irqrestore(&bus_lock,flags);
244 static void i365_bset(u_short sock, u_short reg, u_char mask)
246 u_char d = i365_get(sock, reg);
248 i365_set(sock, reg, d);
251 static void i365_bclr(u_short sock, u_short reg, u_char mask)
253 u_char d = i365_get(sock, reg);
255 i365_set(sock, reg, d);
258 static void i365_bflip(u_short sock, u_short reg, u_char mask, int b)
260 u_char d = i365_get(sock, reg);
265 i365_set(sock, reg, d);
268 static u_short i365_get_pair(u_short sock, u_short reg)
271 a = i365_get(sock, reg);
272 b = i365_get(sock, reg+1);
276 static void i365_set_pair(u_short sock, u_short reg, u_short data)
278 i365_set(sock, reg, data & 0xff);
279 i365_set(sock, reg+1, data >> 8);
282 /*======================================================================
284 Code to save and restore global state information for Cirrus
285 PD67xx controllers, and to set and report global configuration
288 The VIA controllers also use these routines, as they are mostly
289 Cirrus lookalikes, without the timing registers.
291 ======================================================================*/
293 #define flip(v,b,f) (v = ((f)<0) ? v : ((f) ? ((v)|(b)) : ((v)&(~b))))
295 static void cirrus_get_state(u_short s)
298 cirrus_state_t *p = &socket[s].state.cirrus;
299 p->misc1 = i365_get(s, PD67_MISC_CTL_1);
300 p->misc1 &= (PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA);
301 p->misc2 = i365_get(s, PD67_MISC_CTL_2);
302 for (i = 0; i < 6; i++)
303 p->timer[i] = i365_get(s, PD67_TIME_SETUP(0)+i);
306 static void cirrus_set_state(u_short s)
310 cirrus_state_t *p = &socket[s].state.cirrus;
312 misc = i365_get(s, PD67_MISC_CTL_2);
313 i365_set(s, PD67_MISC_CTL_2, p->misc2);
314 if (misc & PD67_MC2_SUSPEND) mdelay(50);
315 misc = i365_get(s, PD67_MISC_CTL_1);
316 misc &= ~(PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA);
317 i365_set(s, PD67_MISC_CTL_1, misc | p->misc1);
318 for (i = 0; i < 6; i++)
319 i365_set(s, PD67_TIME_SETUP(0)+i, p->timer[i]);
322 static u_int __init cirrus_set_opts(u_short s, char *buf)
324 struct i82365_socket *t = &socket[s];
325 cirrus_state_t *p = &socket[s].state.cirrus;
328 if (has_ring == -1) has_ring = 1;
329 flip(p->misc2, PD67_MC2_IRQ15_RI, has_ring);
330 flip(p->misc2, PD67_MC2_DYNAMIC_MODE, dynamic_mode);
331 flip(p->misc2, PD67_MC2_FREQ_BYPASS, freq_bypass);
332 if (p->misc2 & PD67_MC2_IRQ15_RI)
333 strcat(buf, " [ring]");
334 if (p->misc2 & PD67_MC2_DYNAMIC_MODE)
335 strcat(buf, " [dyn mode]");
336 if (p->misc2 & PD67_MC2_FREQ_BYPASS)
337 strcat(buf, " [freq bypass]");
338 if (p->misc1 & PD67_MC1_INPACK_ENA)
339 strcat(buf, " [inpack]");
340 if (p->misc2 & PD67_MC2_IRQ15_RI)
343 strcat(buf, " [led]");
347 strcat(buf, " [dma]");
350 if (!(t->flags & IS_VIA)) {
352 p->timer[0] = p->timer[3] = setup_time;
354 p->timer[1] = cmd_time;
355 p->timer[4] = cmd_time*2+4;
357 if (p->timer[1] == 0) {
358 p->timer[1] = 6; p->timer[4] = 16;
359 if (p->timer[0] == 0)
360 p->timer[0] = p->timer[3] = 1;
363 p->timer[2] = p->timer[5] = recov_time;
365 sprintf(buf, " [%d/%d/%d] [%d/%d/%d]", p->timer[0], p->timer[1],
366 p->timer[2], p->timer[3], p->timer[4], p->timer[5]);
371 /*======================================================================
373 Code to save and restore global state information for Vadem VG468
374 and VG469 controllers, and to set and report global configuration
377 ======================================================================*/
379 static void vg46x_get_state(u_short s)
381 vg46x_state_t *p = &socket[s].state.vg46x;
382 p->ctl = i365_get(s, VG468_CTL);
383 if (socket[s].type == IS_VG469)
384 p->ema = i365_get(s, VG469_EXT_MODE);
387 static void vg46x_set_state(u_short s)
389 vg46x_state_t *p = &socket[s].state.vg46x;
390 i365_set(s, VG468_CTL, p->ctl);
391 if (socket[s].type == IS_VG469)
392 i365_set(s, VG469_EXT_MODE, p->ema);
395 static u_int __init vg46x_set_opts(u_short s, char *buf)
397 vg46x_state_t *p = &socket[s].state.vg46x;
399 flip(p->ctl, VG468_CTL_ASYNC, async_clock);
400 flip(p->ema, VG469_MODE_CABLE, cable_mode);
401 if (p->ctl & VG468_CTL_ASYNC)
402 strcat(buf, " [async]");
403 if (p->ctl & VG468_CTL_INPACK)
404 strcat(buf, " [inpack]");
405 if (socket[s].type == IS_VG469) {
406 u_char vsel = i365_get(s, VG469_VSELECT);
407 if (vsel & VG469_VSEL_EXT_STAT) {
408 strcat(buf, " [ext mode]");
409 if (vsel & VG469_VSEL_EXT_BUS)
410 strcat(buf, " [isa buf]");
412 if (p->ema & VG469_MODE_CABLE)
413 strcat(buf, " [cable]");
414 if (p->ema & VG469_MODE_COMPAT)
415 strcat(buf, " [c step]");
420 /*======================================================================
422 Generic routines to get and set controller options
424 ======================================================================*/
426 static void get_bridge_state(u_short s)
428 struct i82365_socket *t = &socket[s];
429 if (t->flags & IS_CIRRUS)
431 else if (t->flags & IS_VADEM)
435 static void set_bridge_state(u_short s)
437 struct i82365_socket *t = &socket[s];
438 if (t->flags & IS_CIRRUS)
441 i365_set(s, I365_GBLCTL, 0x00);
442 i365_set(s, I365_GENCTL, 0x00);
444 i365_bflip(s, I365_INTCTL, I365_INTR_ENA, t->intr);
445 if (t->flags & IS_VADEM)
449 static u_int __init set_bridge_opts(u_short s, u_short ns)
455 for (i = s; i < s+ns; i++) {
456 if (socket[i].flags & IS_ALIVE) {
457 printk(KERN_INFO " host opts [%d]: already alive!\n", i);
462 if (socket[i].flags & IS_CIRRUS)
463 m = cirrus_set_opts(i, buf);
464 else if (socket[i].flags & IS_VADEM)
465 m = vg46x_set_opts(i, buf);
467 printk(KERN_INFO " host opts [%d]:%s\n", i,
468 (*buf) ? buf : " none");
473 /*======================================================================
475 Interrupt testing code, for ISA and PCI interrupts
477 ======================================================================*/
479 static volatile u_int irq_hits;
480 static u_short irq_sock;
482 static irqreturn_t i365_count_irq(int irq, void *dev)
484 i365_get(irq_sock, I365_CSC);
486 pr_debug("i82365: -> hit on irq %d\n", irq);
490 static u_int __init test_irq(u_short sock, int irq)
492 pr_debug("i82365: testing ISA irq %d\n", irq);
493 if (request_irq(irq, i365_count_irq, IRQF_PROBE_SHARED, "scan",
494 i365_count_irq) != 0)
496 irq_hits = 0; irq_sock = sock;
499 free_irq(irq, i365_count_irq);
500 pr_debug("i82365: spurious hit!\n");
504 /* Generate one interrupt */
505 i365_set(sock, I365_CSCINT, I365_CSC_DETECT | (irq << 4));
506 i365_bset(sock, I365_GENCTL, I365_CTL_SW_IRQ);
509 free_irq(irq, i365_count_irq);
511 /* mask all interrupts */
512 i365_set(sock, I365_CSCINT, 0);
513 pr_debug("i82365: hits = %d\n", irq_hits);
515 return (irq_hits != 1);
518 static u_int __init isa_scan(u_short sock, u_int mask0)
525 /* Don't probe level-triggered interrupts -- reserved for PCI */
526 mask0 &= ~(inb(PIC) | (inb(PIC+1) << 8));
530 set_bridge_state(sock);
531 i365_set(sock, I365_CSCINT, 0);
532 for (i = 0; i < 16; i++)
533 if ((mask0 & (1 << i)) && (test_irq(sock, i) == 0))
535 for (i = 0; i < 16; i++)
536 if ((mask1 & (1 << i)) && (test_irq(sock, i) != 0))
540 printk(KERN_INFO " ISA irqs (");
544 /* Fallback: just find interrupts that aren't in use */
545 for (i = 0; i < 16; i++)
546 if ((mask0 & (1 << i)) && (_check_irq(i, IRQF_PROBE_SHARED) == 0))
549 /* If scan failed, default to polled status */
550 if (!cs_irq && (poll_interval == 0)) poll_interval = HZ;
554 for (i = 0; i < 16; i++)
556 printk("%s%d", ((mask1 & ((1<<i)-1)) ? "," : ""), i);
557 if (mask1 == 0) printk("none!");
562 /*====================================================================*/
564 /* Time conversion functions */
566 static int to_cycles(int ns)
568 return ns/cycle_time;
571 /*====================================================================*/
573 static int __init identify(unsigned int port, u_short sock)
578 /* Use the next free entry in the socket table */
579 socket[sockets].ioaddr = port;
580 socket[sockets].psock = sock;
582 /* Wake up a sleepy Cirrus controller */
584 i365_bclr(sockets, PD67_MISC_CTL_2, PD67_MC2_SUSPEND);
585 /* Pause at least 50 ms */
589 if ((val = i365_get(sockets, I365_IDENT)) & 0x70)
593 type = IS_I82365A; break;
595 type = IS_I82365B; break;
597 type = IS_I82365DF; break;
598 case 0x88: case 0x89: case 0x8a:
599 type = IS_IBM; break;
602 /* Check for Vadem VG-468 chips */
605 i365_bset(sockets, VG468_MISC, VG468_MISC_VADEMREV);
606 val = i365_get(sockets, I365_IDENT);
607 if (val & I365_IDENT_VADEM) {
608 i365_bclr(sockets, VG468_MISC, VG468_MISC_VADEMREV);
609 type = ((val & 7) >= 4) ? IS_VG469 : IS_VG468;
612 /* Check for Ricoh chips */
613 val = i365_get(sockets, RF5C_CHIP_ID);
614 if ((val == RF5C_CHIP_RF5C296) || (val == RF5C_CHIP_RF5C396))
617 /* Check for Cirrus CL-PD67xx chips */
618 i365_set(sockets, PD67_CHIP_INFO, 0);
619 val = i365_get(sockets, PD67_CHIP_INFO);
620 if ((val & PD67_INFO_CHIP_ID) == PD67_INFO_CHIP_ID) {
621 val = i365_get(sockets, PD67_CHIP_INFO);
622 if ((val & PD67_INFO_CHIP_ID) == 0) {
623 type = (val & PD67_INFO_SLOTS) ? IS_PD672X : IS_PD6710;
624 i365_set(sockets, PD67_EXT_INDEX, 0xe5);
625 if (i365_get(sockets, PD67_EXT_INDEX) != 0xe5)
632 /*======================================================================
634 See if a card is present, powered up, in IO mode, and already
635 bound to a (non PC Card) Linux driver. We leave these alone.
637 We make an exception for cards that seem to be serial devices.
639 ======================================================================*/
641 static int __init is_alive(u_short sock)
644 unsigned int start, stop;
646 stat = i365_get(sock, I365_STATUS);
647 start = i365_get_pair(sock, I365_IO(0)+I365_W_START);
648 stop = i365_get_pair(sock, I365_IO(0)+I365_W_STOP);
649 if ((stat & I365_CS_DETECT) && (stat & I365_CS_POWERON) &&
650 (i365_get(sock, I365_INTCTL) & I365_PC_IOCARD) &&
651 (i365_get(sock, I365_ADDRWIN) & I365_ENA_IO(0)) &&
652 ((start & 0xfeef) != 0x02e8)) {
653 if (!request_region(start, stop-start+1, "i82365"))
655 release_region(start, stop-start+1);
661 /*====================================================================*/
663 static void __init add_socket(unsigned int port, int psock, int type)
665 socket[sockets].ioaddr = port;
666 socket[sockets].psock = psock;
667 socket[sockets].type = type;
668 socket[sockets].flags = pcic[type].flags;
669 if (is_alive(sockets))
670 socket[sockets].flags |= IS_ALIVE;
674 static void __init add_pcic(int ns, int type)
676 u_int mask = 0, i, base;
678 struct i82365_socket *t = &socket[sockets-ns];
681 if (base == 0) printk("\n");
682 printk(KERN_INFO " %s", pcic[type].name);
683 printk(" ISA-to-PCMCIA at port %#x ofs 0x%02x",
684 t->ioaddr, t->psock*0x40);
685 printk(", %d socket%s\n", ns, ((ns > 1) ? "s" : ""));
687 /* Set host options, build basic interrupt mask */
688 if (irq_list_count == 0)
691 for (i = mask = 0; i < irq_list_count; i++)
692 mask |= (1<<irq_list[i]);
693 mask &= I365_MASK & set_bridge_opts(base, ns);
694 /* Scan for ISA interrupts */
695 mask = isa_scan(base, mask);
697 /* Poll if only two interrupts available */
698 if (!poll_interval) {
699 u_int tmp = (mask & 0xff20);
701 if ((tmp & (tmp-1)) == 0)
704 /* Only try an ISA cs_irq if this is the first controller */
705 if (!grab_irq && (cs_irq || !poll_interval)) {
706 /* Avoid irq 12 unless it is explicitly requested */
707 u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12));
708 for (cs_irq = 15; cs_irq > 0; cs_irq--)
709 if ((cs_mask & (1 << cs_irq)) &&
710 (_check_irq(cs_irq, IRQF_PROBE_SHARED) == 0))
715 printk(" status change on irq %d\n", cs_irq);
720 if (poll_interval == 0)
722 printk(" polling interval = %d ms\n",
723 poll_interval * 1000 / HZ);
727 /* Update socket interrupt information, capabilities */
728 for (i = 0; i < ns; i++) {
729 t[i].socket.features |= SS_CAP_PCCARD;
730 t[i].socket.map_size = 0x1000;
731 t[i].socket.irq_mask = mask;
732 t[i].cs_irq = isa_irq;
737 /*====================================================================*/
740 static struct isapnp_device_id id_table[] __initdata = {
741 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
742 ISAPNP_FUNCTION(0x0e00), (unsigned long) "Intel 82365-Compatible" },
743 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
744 ISAPNP_FUNCTION(0x0e01), (unsigned long) "Cirrus Logic CL-PD6720" },
745 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
746 ISAPNP_FUNCTION(0x0e02), (unsigned long) "VLSI VL82C146" },
749 MODULE_DEVICE_TABLE(isapnp, id_table);
751 static struct pnp_dev *i82365_pnpdev;
754 static void __init isa_probe(void)
756 int i, j, sock, k, ns, id;
759 struct isapnp_device_id *devid;
762 for (devid = id_table; devid->vendor; devid++) {
763 if ((dev = pnp_find_dev(NULL, devid->vendor, devid->function, NULL))) {
765 if (pnp_device_attach(dev) < 0)
768 if (pnp_activate_dev(dev) < 0) {
769 printk("activate failed\n");
770 pnp_device_detach(dev);
774 if (!pnp_port_valid(dev, 0)) {
775 printk("invalid resources ?\n");
776 pnp_device_detach(dev);
779 i365_base = pnp_port_start(dev, 0);
786 if (!request_region(i365_base, 2, "i82365")) {
788 printk("port conflict at %#lx\n", i365_base);
792 id = identify(i365_base, 0);
793 if ((id == IS_I82365DF) && (identify(i365_base, 1) != id)) {
794 for (i = 0; i < 4; i++) {
795 if (i == ignore) continue;
796 port = i365_base + ((i & 1) << 2) + ((i & 2) << 1);
798 if (identify(port, sock) == IS_I82365DF) {
799 add_socket(port, sock, IS_VLSI);
800 add_pcic(1, IS_VLSI);
804 for (i = 0; i < 8; i += 2) {
805 if (sockets && !extra_sockets && (i == 4))
807 port = i365_base + 2*(i>>2);
809 id = identify(port, sock);
810 if (id < 0) continue;
812 for (j = ns = 0; j < 2; j++) {
813 /* Does the socket exist? */
814 if ((ignore == i+j) || (identify(port, sock+j) < 0))
816 /* Check for bad socket decode */
817 for (k = 0; k <= sockets; k++)
818 i365_set(k, I365_MEM(0)+I365_W_OFF, k);
819 for (k = 0; k <= sockets; k++)
820 if (i365_get(k, I365_MEM(0)+I365_W_OFF) != k)
822 if (k <= sockets) break;
823 add_socket(port, sock+j, id); ns++;
825 if (ns != 0) add_pcic(ns, id);
830 /*====================================================================*/
832 static irqreturn_t pcic_interrupt(int irq, void *dev)
835 u_int events, active;
839 pr_debug("pcic_interrupt(%d)\n", irq);
841 for (j = 0; j < 20; j++) {
843 for (i = 0; i < sockets; i++) {
844 if (socket[i].cs_irq != irq)
848 csc = i365_get(i, I365_CSC);
849 if ((csc == 0) || (i365_get(i, I365_IDENT) & 0x70)) {
850 ISA_UNLOCK(i, flags);
853 events = (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
855 if (i365_get(i, I365_INTCTL) & I365_PC_IOCARD)
856 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
858 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
859 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
860 events |= (csc & I365_CSC_READY) ? SS_READY : 0;
862 ISA_UNLOCK(i, flags);
863 pr_debug("socket %d event 0x%02x\n", i, events);
866 pcmcia_parse_events(&socket[i].socket, events);
873 printk(KERN_NOTICE "i82365: infinite loop in interrupt handler\n");
875 pr_debug("pcic_interrupt done\n");
876 return IRQ_RETVAL(handled);
877 } /* pcic_interrupt */
879 static void pcic_interrupt_wrapper(u_long data)
881 pcic_interrupt(0, NULL);
882 poll_timer.expires = jiffies + poll_interval;
883 add_timer(&poll_timer);
886 /*====================================================================*/
888 static int i365_get_status(u_short sock, u_int *value)
892 status = i365_get(sock, I365_STATUS);
893 *value = ((status & I365_CS_DETECT) == I365_CS_DETECT)
896 if (i365_get(sock, I365_INTCTL) & I365_PC_IOCARD)
897 *value |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
899 *value |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
900 *value |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
902 *value |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
903 *value |= (status & I365_CS_READY) ? SS_READY : 0;
904 *value |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
906 if (socket[sock].type == IS_VG469) {
907 status = i365_get(sock, VG469_VSENSE);
908 if (socket[sock].psock & 1) {
909 *value |= (status & VG469_VSENSE_B_VS1) ? 0 : SS_3VCARD;
910 *value |= (status & VG469_VSENSE_B_VS2) ? 0 : SS_XVCARD;
912 *value |= (status & VG469_VSENSE_A_VS1) ? 0 : SS_3VCARD;
913 *value |= (status & VG469_VSENSE_A_VS2) ? 0 : SS_XVCARD;
917 pr_debug("GetStatus(%d) = %#4.4x\n", sock, *value);
919 } /* i365_get_status */
921 /*====================================================================*/
923 static int i365_set_socket(u_short sock, socket_state_t *state)
925 struct i82365_socket *t = &socket[sock];
928 pr_debug("SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
929 "io_irq %d, csc_mask %#2.2x)\n", sock, state->flags,
930 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
932 /* First set global controller options */
933 set_bridge_state(sock);
935 /* IO card, RESET flag, IO interrupt */
937 reg |= state->io_irq;
938 reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
939 reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
940 i365_set(sock, I365_INTCTL, reg);
942 reg = I365_PWR_NORESET;
943 if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO;
944 if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT;
946 if (t->flags & IS_CIRRUS) {
947 if (state->Vpp != 0) {
948 if (state->Vpp == 120)
949 reg |= I365_VPP1_12V;
950 else if (state->Vpp == state->Vcc)
954 if (state->Vcc != 0) {
956 if (state->Vcc == 33)
957 i365_bset(sock, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
958 else if (state->Vcc == 50)
959 i365_bclr(sock, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
962 } else if (t->flags & IS_VG_PWR) {
963 if (state->Vpp != 0) {
964 if (state->Vpp == 120)
965 reg |= I365_VPP1_12V;
966 else if (state->Vpp == state->Vcc)
970 if (state->Vcc != 0) {
972 if (state->Vcc == 33)
973 i365_bset(sock, VG469_VSELECT, VG469_VSEL_VCC);
974 else if (state->Vcc == 50)
975 i365_bclr(sock, VG469_VSELECT, VG469_VSEL_VCC);
978 } else if (t->flags & IS_DF_PWR) {
979 switch (state->Vcc) {
981 case 33: reg |= I365_VCC_3V; break;
982 case 50: reg |= I365_VCC_5V; break;
983 default: return -EINVAL;
985 switch (state->Vpp) {
987 case 50: reg |= I365_VPP1_5V; break;
988 case 120: reg |= I365_VPP1_12V; break;
989 default: return -EINVAL;
992 switch (state->Vcc) {
994 case 50: reg |= I365_VCC_5V; break;
995 default: return -EINVAL;
997 switch (state->Vpp) {
999 case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break;
1000 case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break;
1001 default: return -EINVAL;
1005 if (reg != i365_get(sock, I365_POWER))
1006 i365_set(sock, I365_POWER, reg);
1008 /* Chipset-specific functions */
1009 if (t->flags & IS_CIRRUS) {
1010 /* Speaker control */
1011 i365_bflip(sock, PD67_MISC_CTL_1, PD67_MC1_SPKR_ENA,
1012 state->flags & SS_SPKR_ENA);
1015 /* Card status change interrupt mask */
1016 reg = t->cs_irq << 4;
1017 if (state->csc_mask & SS_DETECT) reg |= I365_CSC_DETECT;
1018 if (state->flags & SS_IOCARD) {
1019 if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG;
1021 if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1;
1022 if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2;
1023 if (state->csc_mask & SS_READY) reg |= I365_CSC_READY;
1025 i365_set(sock, I365_CSCINT, reg);
1026 i365_get(sock, I365_CSC);
1029 } /* i365_set_socket */
1031 /*====================================================================*/
1033 static int i365_set_io_map(u_short sock, struct pccard_io_map *io)
1037 pr_debug("SetIOMap(%d, %d, %#2.2x, %d ns, "
1038 "%#llx-%#llx)\n", sock, io->map, io->flags, io->speed,
1039 (unsigned long long)io->start, (unsigned long long)io->stop);
1041 if ((map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) ||
1042 (io->stop < io->start)) return -EINVAL;
1043 /* Turn off the window before changing anything */
1044 if (i365_get(sock, I365_ADDRWIN) & I365_ENA_IO(map))
1045 i365_bclr(sock, I365_ADDRWIN, I365_ENA_IO(map));
1046 i365_set_pair(sock, I365_IO(map)+I365_W_START, io->start);
1047 i365_set_pair(sock, I365_IO(map)+I365_W_STOP, io->stop);
1048 ioctl = i365_get(sock, I365_IOCTL) & ~I365_IOCTL_MASK(map);
1049 if (io->speed) ioctl |= I365_IOCTL_WAIT(map);
1050 if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
1051 if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
1052 if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
1053 i365_set(sock, I365_IOCTL, ioctl);
1054 /* Turn on the window if necessary */
1055 if (io->flags & MAP_ACTIVE)
1056 i365_bset(sock, I365_ADDRWIN, I365_ENA_IO(map));
1058 } /* i365_set_io_map */
1060 /*====================================================================*/
1062 static int i365_set_mem_map(u_short sock, struct pccard_mem_map *mem)
1067 pr_debug("SetMemMap(%d, %d, %#2.2x, %d ns, %#llx-%#llx, "
1068 "%#x)\n", sock, mem->map, mem->flags, mem->speed,
1069 (unsigned long long)mem->res->start,
1070 (unsigned long long)mem->res->end, mem->card_start);
1073 if ((map > 4) || (mem->card_start > 0x3ffffff) ||
1074 (mem->res->start > mem->res->end) || (mem->speed > 1000))
1076 if ((mem->res->start > 0xffffff) || (mem->res->end > 0xffffff))
1079 /* Turn off the window before changing anything */
1080 if (i365_get(sock, I365_ADDRWIN) & I365_ENA_MEM(map))
1081 i365_bclr(sock, I365_ADDRWIN, I365_ENA_MEM(map));
1083 base = I365_MEM(map);
1084 i = (mem->res->start >> 12) & 0x0fff;
1085 if (mem->flags & MAP_16BIT) i |= I365_MEM_16BIT;
1086 if (mem->flags & MAP_0WS) i |= I365_MEM_0WS;
1087 i365_set_pair(sock, base+I365_W_START, i);
1089 i = (mem->res->end >> 12) & 0x0fff;
1090 switch (to_cycles(mem->speed)) {
1092 case 1: i |= I365_MEM_WS0; break;
1093 case 2: i |= I365_MEM_WS1; break;
1094 default: i |= I365_MEM_WS1 | I365_MEM_WS0; break;
1096 i365_set_pair(sock, base+I365_W_STOP, i);
1098 i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
1099 if (mem->flags & MAP_WRPROT) i |= I365_MEM_WRPROT;
1100 if (mem->flags & MAP_ATTRIB) i |= I365_MEM_REG;
1101 i365_set_pair(sock, base+I365_W_OFF, i);
1103 /* Turn on the window if necessary */
1104 if (mem->flags & MAP_ACTIVE)
1105 i365_bset(sock, I365_ADDRWIN, I365_ENA_MEM(map));
1107 } /* i365_set_mem_map */
1109 #if 0 /* driver model ordering issue */
1110 /*======================================================================
1112 Routines for accessing socket information and register dumps via
1113 /sys/class/pcmcia_socket/...
1115 ======================================================================*/
1117 static ssize_t show_info(struct class_device *class_dev, char *buf)
1119 struct i82365_socket *s = container_of(class_dev, struct i82365_socket, socket.dev);
1120 return sprintf(buf, "type: %s\npsock: %d\n",
1121 pcic[s->type].name, s->psock);
1124 static ssize_t show_exca(struct class_device *class_dev, char *buf)
1126 struct i82365_socket *s = container_of(class_dev, struct i82365_socket, socket.dev);
1127 unsigned short sock;
1130 unsigned long flags = 0;
1134 ISA_LOCK(sock, flags);
1135 for (i = 0; i < 0x40; i += 4) {
1136 ret += sprintf(buf, "%02x %02x %02x %02x%s",
1137 i365_get(sock,i), i365_get(sock,i+1),
1138 i365_get(sock,i+2), i365_get(sock,i+3),
1139 ((i % 16) == 12) ? "\n" : " ");
1142 ISA_UNLOCK(sock, flags);
1147 static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL);
1148 static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL);
1151 /*====================================================================*/
1153 /* this is horribly ugly... proper locking needs to be done here at
1155 #define LOCKED(x) do { \
1157 unsigned long flags; \
1158 spin_lock_irqsave(&isa_lock, flags); \
1160 spin_unlock_irqrestore(&isa_lock, flags); \
1165 static int pcic_get_status(struct pcmcia_socket *s, u_int *value)
1167 unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
1169 if (socket[sock].flags & IS_ALIVE) {
1174 LOCKED(i365_get_status(sock, value));
1177 static int pcic_set_socket(struct pcmcia_socket *s, socket_state_t *state)
1179 unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
1181 if (socket[sock].flags & IS_ALIVE)
1184 LOCKED(i365_set_socket(sock, state));
1187 static int pcic_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
1189 unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
1190 if (socket[sock].flags & IS_ALIVE)
1193 LOCKED(i365_set_io_map(sock, io));
1196 static int pcic_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem)
1198 unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
1199 if (socket[sock].flags & IS_ALIVE)
1202 LOCKED(i365_set_mem_map(sock, mem));
1205 static int pcic_init(struct pcmcia_socket *s)
1208 struct resource res = { .start = 0, .end = 0x1000 };
1209 pccard_io_map io = { 0, 0, 0, 0, 1 };
1210 pccard_mem_map mem = { .res = &res, };
1212 for (i = 0; i < 2; i++) {
1214 pcic_set_io_map(s, &io);
1216 for (i = 0; i < 5; i++) {
1218 pcic_set_mem_map(s, &mem);
1224 static struct pccard_operations pcic_operations = {
1226 .get_status = pcic_get_status,
1227 .set_socket = pcic_set_socket,
1228 .set_io_map = pcic_set_io_map,
1229 .set_mem_map = pcic_set_mem_map,
1232 /*====================================================================*/
1234 static struct platform_driver i82365_driver = {
1237 .owner = THIS_MODULE,
1241 static struct platform_device *i82365_device;
1243 static int __init init_i82365(void)
1247 ret = platform_driver_register(&i82365_driver);
1251 i82365_device = platform_device_alloc("i82365", 0);
1252 if (i82365_device) {
1253 ret = platform_device_add(i82365_device);
1255 platform_device_put(i82365_device);
1260 goto err_driver_unregister;
1262 printk(KERN_INFO "Intel ISA PCIC probe: ");
1268 printk("not found.\n");
1270 goto err_dev_unregister;
1273 /* Set up interrupt handler(s) */
1275 ret = request_irq(cs_irq, pcic_interrupt, 0, "i82365", pcic_interrupt);
1278 goto err_socket_release;
1280 /* register sockets with the pcmcia core */
1281 for (i = 0; i < sockets; i++) {
1282 socket[i].socket.dev.parent = &i82365_device->dev;
1283 socket[i].socket.ops = &pcic_operations;
1284 socket[i].socket.resource_ops = &pccard_nonstatic_ops;
1285 socket[i].socket.owner = THIS_MODULE;
1286 socket[i].number = i;
1287 ret = pcmcia_register_socket(&socket[i].socket);
1289 socket[i].flags |= IS_REGISTERED;
1291 #if 0 /* driver model ordering issue */
1292 class_device_create_file(&socket[i].socket.dev,
1293 &class_device_attr_info);
1294 class_device_create_file(&socket[i].socket.dev,
1295 &class_device_attr_exca);
1299 /* Finally, schedule a polling interrupt */
1300 if (poll_interval != 0) {
1301 poll_timer.function = pcic_interrupt_wrapper;
1302 poll_timer.data = 0;
1303 init_timer(&poll_timer);
1304 poll_timer.expires = jiffies + poll_interval;
1305 add_timer(&poll_timer);
1310 for (i = 0; i < sockets; i++) {
1311 /* Turn off all interrupt sources! */
1312 i365_set(i, I365_CSCINT, 0);
1313 release_region(socket[i].ioaddr, 2);
1316 platform_device_unregister(i82365_device);
1317 release_region(i365_base, 2);
1320 pnp_disable_dev(i82365_pnpdev);
1322 err_driver_unregister:
1323 platform_driver_unregister(&i82365_driver);
1328 static void __exit exit_i82365(void)
1332 for (i = 0; i < sockets; i++) {
1333 if (socket[i].flags & IS_REGISTERED)
1334 pcmcia_unregister_socket(&socket[i].socket);
1336 platform_device_unregister(i82365_device);
1337 if (poll_interval != 0)
1338 del_timer_sync(&poll_timer);
1340 free_irq(cs_irq, pcic_interrupt);
1341 for (i = 0; i < sockets; i++) {
1342 /* Turn off all interrupt sources! */
1343 i365_set(i, I365_CSCINT, 0);
1344 release_region(socket[i].ioaddr, 2);
1346 release_region(i365_base, 2);
1349 pnp_disable_dev(i82365_pnpdev);
1351 platform_driver_unregister(&i82365_driver);
1354 module_init(init_i82365);
1355 module_exit(exit_i82365);
1356 MODULE_LICENSE("Dual MPL/GPL");
1357 /*====================================================================*/