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/slab.h>
44 #include <linux/ioport.h>
45 #include <linux/delay.h>
46 #include <linux/workqueue.h>
47 #include <linux/interrupt.h>
48 #include <linux/platform_device.h>
49 #include <linux/bitops.h>
52 #include <asm/system.h>
54 #include <pcmcia/cs_types.h>
55 #include <pcmcia/ss.h>
56 #include <pcmcia/cs.h>
58 #include <linux/isapnp.h>
60 /* ISA-bus controllers */
66 #ifdef CONFIG_PCMCIA_DEBUG
67 static const char version[] =
68 "i82365.c 1.265 1999/11/10 18:36:21 (David Hinds)";
72 module_param(pc_debug, int, 0644);
74 #define debug(lvl, fmt, arg...) do { \
75 if (pc_debug > (lvl)) \
76 printk(KERN_DEBUG "i82365: " fmt , ## arg); \
79 #define debug(lvl, fmt, arg...) do { } while (0)
82 static irqreturn_t i365_count_irq(int, void *);
83 static inline int _check_irq(int irq, int flags)
85 if (request_irq(irq, i365_count_irq, flags, "x", i365_count_irq) != 0)
87 free_irq(irq, i365_count_irq);
91 /*====================================================================*/
93 /* Parameters that can be set with 'insmod' */
95 /* Default base address for i82365sl and other ISA chips */
96 static unsigned long i365_base = 0x3e0;
97 /* Should we probe at 0x3e2 for an extra ISA controller? */
98 static int extra_sockets = 0;
99 /* Specify a socket number to ignore */
100 static int ignore = -1;
101 /* Bit map or list of interrupts to choose from */
102 static u_int irq_mask = 0xffff;
103 static int irq_list[16];
104 static unsigned int irq_list_count;
105 /* The card status change interrupt -- 0 means autoselect */
106 static int cs_irq = 0;
108 /* Probe for safe interrupts? */
109 static int do_scan = 1;
110 /* Poll status interval -- 0 means default to interrupt */
111 static int poll_interval = 0;
112 /* External clock time, in nanoseconds. 120 ns = 8.33 MHz */
113 static int cycle_time = 120;
116 static int has_dma = -1;
117 static int has_led = -1;
118 static int has_ring = -1;
119 static int dynamic_mode = 0;
120 static int freq_bypass = -1;
121 static int setup_time = -1;
122 static int cmd_time = -1;
123 static int recov_time = -1;
126 static int async_clock = -1;
127 static int cable_mode = -1;
128 static int wakeup = 0;
130 module_param(i365_base, ulong, 0444);
131 module_param(ignore, int, 0444);
132 module_param(extra_sockets, int, 0444);
133 module_param(irq_mask, int, 0444);
134 module_param_array(irq_list, int, &irq_list_count, 0444);
135 module_param(cs_irq, int, 0444);
136 module_param(async_clock, int, 0444);
137 module_param(cable_mode, int, 0444);
138 module_param(wakeup, int, 0444);
140 module_param(do_scan, int, 0444);
141 module_param(poll_interval, int, 0444);
142 module_param(cycle_time, int, 0444);
143 module_param(has_dma, int, 0444);
144 module_param(has_led, int, 0444);
145 module_param(has_ring, int, 0444);
146 module_param(dynamic_mode, int, 0444);
147 module_param(freq_bypass, int, 0444);
148 module_param(setup_time, int, 0444);
149 module_param(cmd_time, int, 0444);
150 module_param(recov_time, int, 0444);
152 /*====================================================================*/
154 typedef struct cirrus_state_t {
159 typedef struct vg46x_state_t {
163 struct i82365_socket {
165 struct pcmcia_socket socket;
171 cirrus_state_t cirrus;
176 /* Where we keep track of our sockets... */
177 static int sockets = 0;
178 static struct i82365_socket socket[8] = {
182 /* Default ISA interrupt mask */
183 #define I365_MASK 0xdeb8 /* irq 15,14,12,11,10,9,7,5,4,3 */
186 static DEFINE_SPINLOCK(isa_lock);
187 #define ISA_LOCK(n, f) spin_lock_irqsave(&isa_lock, f)
188 #define ISA_UNLOCK(n, f) spin_unlock_irqrestore(&isa_lock, f)
190 static struct timer_list poll_timer;
192 /*====================================================================*/
194 /* These definitions must match the pcic table! */
195 typedef enum pcic_id {
196 IS_I82365A, IS_I82365B, IS_I82365DF,
197 IS_IBM, IS_RF5Cx96, IS_VLSI, IS_VG468, IS_VG469,
198 IS_PD6710, IS_PD672X, IS_VT83C469,
201 /* Flags for classifying groups of controllers */
202 #define IS_VADEM 0x0001
203 #define IS_CIRRUS 0x0002
204 #define IS_VIA 0x0010
205 #define IS_UNKNOWN 0x0400
206 #define IS_VG_PWR 0x0800
207 #define IS_DF_PWR 0x1000
208 #define IS_REGISTERED 0x2000
209 #define IS_ALIVE 0x8000
211 typedef struct pcic_t {
216 static pcic_t pcic[] = {
217 { "Intel i82365sl A step", 0 },
218 { "Intel i82365sl B step", 0 },
219 { "Intel i82365sl DF", IS_DF_PWR },
221 { "Ricoh RF5C296/396", 0 },
222 { "VLSI 82C146", 0 },
223 { "Vadem VG-468", IS_VADEM },
224 { "Vadem VG-469", IS_VADEM|IS_VG_PWR },
225 { "Cirrus PD6710", IS_CIRRUS },
226 { "Cirrus PD672x", IS_CIRRUS },
227 { "VIA VT83C469", IS_CIRRUS|IS_VIA },
230 #define PCIC_COUNT (sizeof(pcic)/sizeof(pcic_t))
232 /*====================================================================*/
234 static DEFINE_SPINLOCK(bus_lock);
236 static u_char i365_get(u_short sock, u_short reg)
239 spin_lock_irqsave(&bus_lock,flags);
241 unsigned int port = socket[sock].ioaddr;
243 reg = I365_REG(socket[sock].psock, reg);
244 outb(reg, port); val = inb(port+1);
245 spin_unlock_irqrestore(&bus_lock,flags);
250 static void i365_set(u_short sock, u_short reg, u_char data)
253 spin_lock_irqsave(&bus_lock,flags);
255 unsigned int port = socket[sock].ioaddr;
256 u_char val = I365_REG(socket[sock].psock, reg);
257 outb(val, port); outb(data, port+1);
258 spin_unlock_irqrestore(&bus_lock,flags);
262 static void i365_bset(u_short sock, u_short reg, u_char mask)
264 u_char d = i365_get(sock, reg);
266 i365_set(sock, reg, d);
269 static void i365_bclr(u_short sock, u_short reg, u_char mask)
271 u_char d = i365_get(sock, reg);
273 i365_set(sock, reg, d);
276 static void i365_bflip(u_short sock, u_short reg, u_char mask, int b)
278 u_char d = i365_get(sock, reg);
283 i365_set(sock, reg, d);
286 static u_short i365_get_pair(u_short sock, u_short reg)
289 a = i365_get(sock, reg);
290 b = i365_get(sock, reg+1);
294 static void i365_set_pair(u_short sock, u_short reg, u_short data)
296 i365_set(sock, reg, data & 0xff);
297 i365_set(sock, reg+1, data >> 8);
300 /*======================================================================
302 Code to save and restore global state information for Cirrus
303 PD67xx controllers, and to set and report global configuration
306 The VIA controllers also use these routines, as they are mostly
307 Cirrus lookalikes, without the timing registers.
309 ======================================================================*/
311 #define flip(v,b,f) (v = ((f)<0) ? v : ((f) ? ((v)|(b)) : ((v)&(~b))))
313 static void cirrus_get_state(u_short s)
316 cirrus_state_t *p = &socket[s].state.cirrus;
317 p->misc1 = i365_get(s, PD67_MISC_CTL_1);
318 p->misc1 &= (PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA);
319 p->misc2 = i365_get(s, PD67_MISC_CTL_2);
320 for (i = 0; i < 6; i++)
321 p->timer[i] = i365_get(s, PD67_TIME_SETUP(0)+i);
324 static void cirrus_set_state(u_short s)
328 cirrus_state_t *p = &socket[s].state.cirrus;
330 misc = i365_get(s, PD67_MISC_CTL_2);
331 i365_set(s, PD67_MISC_CTL_2, p->misc2);
332 if (misc & PD67_MC2_SUSPEND) mdelay(50);
333 misc = i365_get(s, PD67_MISC_CTL_1);
334 misc &= ~(PD67_MC1_MEDIA_ENA | PD67_MC1_INPACK_ENA);
335 i365_set(s, PD67_MISC_CTL_1, misc | p->misc1);
336 for (i = 0; i < 6; i++)
337 i365_set(s, PD67_TIME_SETUP(0)+i, p->timer[i]);
340 static u_int __init cirrus_set_opts(u_short s, char *buf)
342 struct i82365_socket *t = &socket[s];
343 cirrus_state_t *p = &socket[s].state.cirrus;
346 if (has_ring == -1) has_ring = 1;
347 flip(p->misc2, PD67_MC2_IRQ15_RI, has_ring);
348 flip(p->misc2, PD67_MC2_DYNAMIC_MODE, dynamic_mode);
349 flip(p->misc2, PD67_MC2_FREQ_BYPASS, freq_bypass);
350 if (p->misc2 & PD67_MC2_IRQ15_RI)
351 strcat(buf, " [ring]");
352 if (p->misc2 & PD67_MC2_DYNAMIC_MODE)
353 strcat(buf, " [dyn mode]");
354 if (p->misc2 & PD67_MC2_FREQ_BYPASS)
355 strcat(buf, " [freq bypass]");
356 if (p->misc1 & PD67_MC1_INPACK_ENA)
357 strcat(buf, " [inpack]");
358 if (p->misc2 & PD67_MC2_IRQ15_RI)
361 strcat(buf, " [led]");
365 strcat(buf, " [dma]");
368 if (!(t->flags & IS_VIA)) {
370 p->timer[0] = p->timer[3] = setup_time;
372 p->timer[1] = cmd_time;
373 p->timer[4] = cmd_time*2+4;
375 if (p->timer[1] == 0) {
376 p->timer[1] = 6; p->timer[4] = 16;
377 if (p->timer[0] == 0)
378 p->timer[0] = p->timer[3] = 1;
381 p->timer[2] = p->timer[5] = recov_time;
383 sprintf(buf, " [%d/%d/%d] [%d/%d/%d]", p->timer[0], p->timer[1],
384 p->timer[2], p->timer[3], p->timer[4], p->timer[5]);
389 /*======================================================================
391 Code to save and restore global state information for Vadem VG468
392 and VG469 controllers, and to set and report global configuration
395 ======================================================================*/
397 static void vg46x_get_state(u_short s)
399 vg46x_state_t *p = &socket[s].state.vg46x;
400 p->ctl = i365_get(s, VG468_CTL);
401 if (socket[s].type == IS_VG469)
402 p->ema = i365_get(s, VG469_EXT_MODE);
405 static void vg46x_set_state(u_short s)
407 vg46x_state_t *p = &socket[s].state.vg46x;
408 i365_set(s, VG468_CTL, p->ctl);
409 if (socket[s].type == IS_VG469)
410 i365_set(s, VG469_EXT_MODE, p->ema);
413 static u_int __init vg46x_set_opts(u_short s, char *buf)
415 vg46x_state_t *p = &socket[s].state.vg46x;
417 flip(p->ctl, VG468_CTL_ASYNC, async_clock);
418 flip(p->ema, VG469_MODE_CABLE, cable_mode);
419 if (p->ctl & VG468_CTL_ASYNC)
420 strcat(buf, " [async]");
421 if (p->ctl & VG468_CTL_INPACK)
422 strcat(buf, " [inpack]");
423 if (socket[s].type == IS_VG469) {
424 u_char vsel = i365_get(s, VG469_VSELECT);
425 if (vsel & VG469_VSEL_EXT_STAT) {
426 strcat(buf, " [ext mode]");
427 if (vsel & VG469_VSEL_EXT_BUS)
428 strcat(buf, " [isa buf]");
430 if (p->ema & VG469_MODE_CABLE)
431 strcat(buf, " [cable]");
432 if (p->ema & VG469_MODE_COMPAT)
433 strcat(buf, " [c step]");
438 /*======================================================================
440 Generic routines to get and set controller options
442 ======================================================================*/
444 static void get_bridge_state(u_short s)
446 struct i82365_socket *t = &socket[s];
447 if (t->flags & IS_CIRRUS)
449 else if (t->flags & IS_VADEM)
453 static void set_bridge_state(u_short s)
455 struct i82365_socket *t = &socket[s];
456 if (t->flags & IS_CIRRUS)
459 i365_set(s, I365_GBLCTL, 0x00);
460 i365_set(s, I365_GENCTL, 0x00);
462 i365_bflip(s, I365_INTCTL, I365_INTR_ENA, t->intr);
463 if (t->flags & IS_VADEM)
467 static u_int __init set_bridge_opts(u_short s, u_short ns)
473 for (i = s; i < s+ns; i++) {
474 if (socket[i].flags & IS_ALIVE) {
475 printk(KERN_INFO " host opts [%d]: already alive!\n", i);
480 if (socket[i].flags & IS_CIRRUS)
481 m = cirrus_set_opts(i, buf);
482 else if (socket[i].flags & IS_VADEM)
483 m = vg46x_set_opts(i, buf);
485 printk(KERN_INFO " host opts [%d]:%s\n", i,
486 (*buf) ? buf : " none");
491 /*======================================================================
493 Interrupt testing code, for ISA and PCI interrupts
495 ======================================================================*/
497 static volatile u_int irq_hits;
498 static u_short irq_sock;
500 static irqreturn_t i365_count_irq(int irq, void *dev)
502 i365_get(irq_sock, I365_CSC);
504 debug(2, "-> hit on irq %d\n", irq);
508 static u_int __init test_irq(u_short sock, int irq)
510 debug(2, " testing ISA irq %d\n", irq);
511 if (request_irq(irq, i365_count_irq, IRQF_PROBE_SHARED, "scan",
512 i365_count_irq) != 0)
514 irq_hits = 0; irq_sock = sock;
517 free_irq(irq, i365_count_irq);
518 debug(2, " spurious hit!\n");
522 /* Generate one interrupt */
523 i365_set(sock, I365_CSCINT, I365_CSC_DETECT | (irq << 4));
524 i365_bset(sock, I365_GENCTL, I365_CTL_SW_IRQ);
527 free_irq(irq, i365_count_irq);
529 /* mask all interrupts */
530 i365_set(sock, I365_CSCINT, 0);
531 debug(2, " hits = %d\n", irq_hits);
533 return (irq_hits != 1);
536 static u_int __init isa_scan(u_short sock, u_int mask0)
543 /* Don't probe level-triggered interrupts -- reserved for PCI */
544 mask0 &= ~(inb(PIC) | (inb(PIC+1) << 8));
548 set_bridge_state(sock);
549 i365_set(sock, I365_CSCINT, 0);
550 for (i = 0; i < 16; i++)
551 if ((mask0 & (1 << i)) && (test_irq(sock, i) == 0))
553 for (i = 0; i < 16; i++)
554 if ((mask1 & (1 << i)) && (test_irq(sock, i) != 0))
558 printk(KERN_INFO " ISA irqs (");
562 /* Fallback: just find interrupts that aren't in use */
563 for (i = 0; i < 16; i++)
564 if ((mask0 & (1 << i)) && (_check_irq(i, IRQF_PROBE_SHARED) == 0))
567 /* If scan failed, default to polled status */
568 if (!cs_irq && (poll_interval == 0)) poll_interval = HZ;
572 for (i = 0; i < 16; i++)
574 printk("%s%d", ((mask1 & ((1<<i)-1)) ? "," : ""), i);
575 if (mask1 == 0) printk("none!");
580 /*====================================================================*/
582 /* Time conversion functions */
584 static int to_cycles(int ns)
586 return ns/cycle_time;
589 /*====================================================================*/
591 static int __init identify(unsigned int port, u_short sock)
596 /* Use the next free entry in the socket table */
597 socket[sockets].ioaddr = port;
598 socket[sockets].psock = sock;
600 /* Wake up a sleepy Cirrus controller */
602 i365_bclr(sockets, PD67_MISC_CTL_2, PD67_MC2_SUSPEND);
603 /* Pause at least 50 ms */
607 if ((val = i365_get(sockets, I365_IDENT)) & 0x70)
611 type = IS_I82365A; break;
613 type = IS_I82365B; break;
615 type = IS_I82365DF; break;
616 case 0x88: case 0x89: case 0x8a:
617 type = IS_IBM; break;
620 /* Check for Vadem VG-468 chips */
623 i365_bset(sockets, VG468_MISC, VG468_MISC_VADEMREV);
624 val = i365_get(sockets, I365_IDENT);
625 if (val & I365_IDENT_VADEM) {
626 i365_bclr(sockets, VG468_MISC, VG468_MISC_VADEMREV);
627 type = ((val & 7) >= 4) ? IS_VG469 : IS_VG468;
630 /* Check for Ricoh chips */
631 val = i365_get(sockets, RF5C_CHIP_ID);
632 if ((val == RF5C_CHIP_RF5C296) || (val == RF5C_CHIP_RF5C396))
635 /* Check for Cirrus CL-PD67xx chips */
636 i365_set(sockets, PD67_CHIP_INFO, 0);
637 val = i365_get(sockets, PD67_CHIP_INFO);
638 if ((val & PD67_INFO_CHIP_ID) == PD67_INFO_CHIP_ID) {
639 val = i365_get(sockets, PD67_CHIP_INFO);
640 if ((val & PD67_INFO_CHIP_ID) == 0) {
641 type = (val & PD67_INFO_SLOTS) ? IS_PD672X : IS_PD6710;
642 i365_set(sockets, PD67_EXT_INDEX, 0xe5);
643 if (i365_get(sockets, PD67_EXT_INDEX) != 0xe5)
650 /*======================================================================
652 See if a card is present, powered up, in IO mode, and already
653 bound to a (non PC Card) Linux driver. We leave these alone.
655 We make an exception for cards that seem to be serial devices.
657 ======================================================================*/
659 static int __init is_alive(u_short sock)
662 unsigned int start, stop;
664 stat = i365_get(sock, I365_STATUS);
665 start = i365_get_pair(sock, I365_IO(0)+I365_W_START);
666 stop = i365_get_pair(sock, I365_IO(0)+I365_W_STOP);
667 if ((stat & I365_CS_DETECT) && (stat & I365_CS_POWERON) &&
668 (i365_get(sock, I365_INTCTL) & I365_PC_IOCARD) &&
669 (i365_get(sock, I365_ADDRWIN) & I365_ENA_IO(0)) &&
670 ((start & 0xfeef) != 0x02e8)) {
671 if (!request_region(start, stop-start+1, "i82365"))
673 release_region(start, stop-start+1);
679 /*====================================================================*/
681 static void __init add_socket(unsigned int port, int psock, int type)
683 socket[sockets].ioaddr = port;
684 socket[sockets].psock = psock;
685 socket[sockets].type = type;
686 socket[sockets].flags = pcic[type].flags;
687 if (is_alive(sockets))
688 socket[sockets].flags |= IS_ALIVE;
692 static void __init add_pcic(int ns, int type)
694 u_int mask = 0, i, base;
696 struct i82365_socket *t = &socket[sockets-ns];
699 if (base == 0) printk("\n");
700 printk(KERN_INFO " %s", pcic[type].name);
701 printk(" ISA-to-PCMCIA at port %#x ofs 0x%02x",
702 t->ioaddr, t->psock*0x40);
703 printk(", %d socket%s\n", ns, ((ns > 1) ? "s" : ""));
705 /* Set host options, build basic interrupt mask */
706 if (irq_list_count == 0)
709 for (i = mask = 0; i < irq_list_count; i++)
710 mask |= (1<<irq_list[i]);
711 mask &= I365_MASK & set_bridge_opts(base, ns);
712 /* Scan for ISA interrupts */
713 mask = isa_scan(base, mask);
715 /* Poll if only two interrupts available */
716 if (!poll_interval) {
717 u_int tmp = (mask & 0xff20);
719 if ((tmp & (tmp-1)) == 0)
722 /* Only try an ISA cs_irq if this is the first controller */
723 if (!grab_irq && (cs_irq || !poll_interval)) {
724 /* Avoid irq 12 unless it is explicitly requested */
725 u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12));
726 for (cs_irq = 15; cs_irq > 0; cs_irq--)
727 if ((cs_mask & (1 << cs_irq)) &&
728 (_check_irq(cs_irq, IRQF_PROBE_SHARED) == 0))
733 printk(" status change on irq %d\n", cs_irq);
738 if (poll_interval == 0)
740 printk(" polling interval = %d ms\n",
741 poll_interval * 1000 / HZ);
745 /* Update socket interrupt information, capabilities */
746 for (i = 0; i < ns; i++) {
747 t[i].socket.features |= SS_CAP_PCCARD;
748 t[i].socket.map_size = 0x1000;
749 t[i].socket.irq_mask = mask;
750 t[i].cs_irq = isa_irq;
755 /*====================================================================*/
758 static struct isapnp_device_id id_table[] __initdata = {
759 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
760 ISAPNP_FUNCTION(0x0e00), (unsigned long) "Intel 82365-Compatible" },
761 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
762 ISAPNP_FUNCTION(0x0e01), (unsigned long) "Cirrus Logic CL-PD6720" },
763 { ISAPNP_ANY_ID, ISAPNP_ANY_ID, ISAPNP_VENDOR('P', 'N', 'P'),
764 ISAPNP_FUNCTION(0x0e02), (unsigned long) "VLSI VL82C146" },
767 MODULE_DEVICE_TABLE(isapnp, id_table);
769 static struct pnp_dev *i82365_pnpdev;
772 static void __init isa_probe(void)
774 int i, j, sock, k, ns, id;
777 struct isapnp_device_id *devid;
780 for (devid = id_table; devid->vendor; devid++) {
781 if ((dev = pnp_find_dev(NULL, devid->vendor, devid->function, NULL))) {
783 if (pnp_device_attach(dev) < 0)
786 if (pnp_activate_dev(dev) < 0) {
787 printk("activate failed\n");
788 pnp_device_detach(dev);
792 if (!pnp_port_valid(dev, 0)) {
793 printk("invalid resources ?\n");
794 pnp_device_detach(dev);
797 i365_base = pnp_port_start(dev, 0);
804 if (!request_region(i365_base, 2, "i82365")) {
806 printk("port conflict at %#lx\n", i365_base);
810 id = identify(i365_base, 0);
811 if ((id == IS_I82365DF) && (identify(i365_base, 1) != id)) {
812 for (i = 0; i < 4; i++) {
813 if (i == ignore) continue;
814 port = i365_base + ((i & 1) << 2) + ((i & 2) << 1);
816 if (identify(port, sock) == IS_I82365DF) {
817 add_socket(port, sock, IS_VLSI);
818 add_pcic(1, IS_VLSI);
822 for (i = 0; i < 8; i += 2) {
823 if (sockets && !extra_sockets && (i == 4))
825 port = i365_base + 2*(i>>2);
827 id = identify(port, sock);
828 if (id < 0) continue;
830 for (j = ns = 0; j < 2; j++) {
831 /* Does the socket exist? */
832 if ((ignore == i+j) || (identify(port, sock+j) < 0))
834 /* Check for bad socket decode */
835 for (k = 0; k <= sockets; k++)
836 i365_set(k, I365_MEM(0)+I365_W_OFF, k);
837 for (k = 0; k <= sockets; k++)
838 if (i365_get(k, I365_MEM(0)+I365_W_OFF) != k)
840 if (k <= sockets) break;
841 add_socket(port, sock+j, id); ns++;
843 if (ns != 0) add_pcic(ns, id);
848 /*====================================================================*/
850 static irqreturn_t pcic_interrupt(int irq, void *dev)
853 u_int events, active;
857 debug(4, "pcic_interrupt(%d)\n", irq);
859 for (j = 0; j < 20; j++) {
861 for (i = 0; i < sockets; i++) {
862 if (socket[i].cs_irq != irq)
866 csc = i365_get(i, I365_CSC);
867 if ((csc == 0) || (i365_get(i, I365_IDENT) & 0x70)) {
868 ISA_UNLOCK(i, flags);
871 events = (csc & I365_CSC_DETECT) ? SS_DETECT : 0;
873 if (i365_get(i, I365_INTCTL) & I365_PC_IOCARD)
874 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0;
876 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0;
877 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0;
878 events |= (csc & I365_CSC_READY) ? SS_READY : 0;
880 ISA_UNLOCK(i, flags);
881 debug(2, "socket %d event 0x%02x\n", i, events);
884 pcmcia_parse_events(&socket[i].socket, events);
891 printk(KERN_NOTICE "i82365: infinite loop in interrupt handler\n");
893 debug(4, "interrupt done\n");
894 return IRQ_RETVAL(handled);
895 } /* pcic_interrupt */
897 static void pcic_interrupt_wrapper(u_long data)
899 pcic_interrupt(0, NULL);
900 poll_timer.expires = jiffies + poll_interval;
901 add_timer(&poll_timer);
904 /*====================================================================*/
906 static int i365_get_status(u_short sock, u_int *value)
910 status = i365_get(sock, I365_STATUS);
911 *value = ((status & I365_CS_DETECT) == I365_CS_DETECT)
914 if (i365_get(sock, I365_INTCTL) & I365_PC_IOCARD)
915 *value |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG;
917 *value |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD;
918 *value |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN;
920 *value |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0;
921 *value |= (status & I365_CS_READY) ? SS_READY : 0;
922 *value |= (status & I365_CS_POWERON) ? SS_POWERON : 0;
924 if (socket[sock].type == IS_VG469) {
925 status = i365_get(sock, VG469_VSENSE);
926 if (socket[sock].psock & 1) {
927 *value |= (status & VG469_VSENSE_B_VS1) ? 0 : SS_3VCARD;
928 *value |= (status & VG469_VSENSE_B_VS2) ? 0 : SS_XVCARD;
930 *value |= (status & VG469_VSENSE_A_VS1) ? 0 : SS_3VCARD;
931 *value |= (status & VG469_VSENSE_A_VS2) ? 0 : SS_XVCARD;
935 debug(1, "GetStatus(%d) = %#4.4x\n", sock, *value);
937 } /* i365_get_status */
939 /*====================================================================*/
941 static int i365_set_socket(u_short sock, socket_state_t *state)
943 struct i82365_socket *t = &socket[sock];
946 debug(1, "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
947 "io_irq %d, csc_mask %#2.2x)\n", sock, state->flags,
948 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
950 /* First set global controller options */
951 set_bridge_state(sock);
953 /* IO card, RESET flag, IO interrupt */
955 reg |= state->io_irq;
956 reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET;
957 reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0;
958 i365_set(sock, I365_INTCTL, reg);
960 reg = I365_PWR_NORESET;
961 if (state->flags & SS_PWR_AUTO) reg |= I365_PWR_AUTO;
962 if (state->flags & SS_OUTPUT_ENA) reg |= I365_PWR_OUT;
964 if (t->flags & IS_CIRRUS) {
965 if (state->Vpp != 0) {
966 if (state->Vpp == 120)
967 reg |= I365_VPP1_12V;
968 else if (state->Vpp == state->Vcc)
972 if (state->Vcc != 0) {
974 if (state->Vcc == 33)
975 i365_bset(sock, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
976 else if (state->Vcc == 50)
977 i365_bclr(sock, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
980 } else if (t->flags & IS_VG_PWR) {
981 if (state->Vpp != 0) {
982 if (state->Vpp == 120)
983 reg |= I365_VPP1_12V;
984 else if (state->Vpp == state->Vcc)
988 if (state->Vcc != 0) {
990 if (state->Vcc == 33)
991 i365_bset(sock, VG469_VSELECT, VG469_VSEL_VCC);
992 else if (state->Vcc == 50)
993 i365_bclr(sock, VG469_VSELECT, VG469_VSEL_VCC);
996 } else if (t->flags & IS_DF_PWR) {
997 switch (state->Vcc) {
999 case 33: reg |= I365_VCC_3V; break;
1000 case 50: reg |= I365_VCC_5V; break;
1001 default: return -EINVAL;
1003 switch (state->Vpp) {
1005 case 50: reg |= I365_VPP1_5V; break;
1006 case 120: reg |= I365_VPP1_12V; break;
1007 default: return -EINVAL;
1010 switch (state->Vcc) {
1012 case 50: reg |= I365_VCC_5V; break;
1013 default: return -EINVAL;
1015 switch (state->Vpp) {
1017 case 50: reg |= I365_VPP1_5V | I365_VPP2_5V; break;
1018 case 120: reg |= I365_VPP1_12V | I365_VPP2_12V; break;
1019 default: return -EINVAL;
1023 if (reg != i365_get(sock, I365_POWER))
1024 i365_set(sock, I365_POWER, reg);
1026 /* Chipset-specific functions */
1027 if (t->flags & IS_CIRRUS) {
1028 /* Speaker control */
1029 i365_bflip(sock, PD67_MISC_CTL_1, PD67_MC1_SPKR_ENA,
1030 state->flags & SS_SPKR_ENA);
1033 /* Card status change interrupt mask */
1034 reg = t->cs_irq << 4;
1035 if (state->csc_mask & SS_DETECT) reg |= I365_CSC_DETECT;
1036 if (state->flags & SS_IOCARD) {
1037 if (state->csc_mask & SS_STSCHG) reg |= I365_CSC_STSCHG;
1039 if (state->csc_mask & SS_BATDEAD) reg |= I365_CSC_BVD1;
1040 if (state->csc_mask & SS_BATWARN) reg |= I365_CSC_BVD2;
1041 if (state->csc_mask & SS_READY) reg |= I365_CSC_READY;
1043 i365_set(sock, I365_CSCINT, reg);
1044 i365_get(sock, I365_CSC);
1047 } /* i365_set_socket */
1049 /*====================================================================*/
1051 static int i365_set_io_map(u_short sock, struct pccard_io_map *io)
1055 debug(1, "SetIOMap(%d, %d, %#2.2x, %d ns, "
1056 "%#x-%#x)\n", sock, io->map, io->flags,
1057 io->speed, io->start, io->stop);
1059 if ((map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) ||
1060 (io->stop < io->start)) return -EINVAL;
1061 /* Turn off the window before changing anything */
1062 if (i365_get(sock, I365_ADDRWIN) & I365_ENA_IO(map))
1063 i365_bclr(sock, I365_ADDRWIN, I365_ENA_IO(map));
1064 i365_set_pair(sock, I365_IO(map)+I365_W_START, io->start);
1065 i365_set_pair(sock, I365_IO(map)+I365_W_STOP, io->stop);
1066 ioctl = i365_get(sock, I365_IOCTL) & ~I365_IOCTL_MASK(map);
1067 if (io->speed) ioctl |= I365_IOCTL_WAIT(map);
1068 if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
1069 if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
1070 if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
1071 i365_set(sock, I365_IOCTL, ioctl);
1072 /* Turn on the window if necessary */
1073 if (io->flags & MAP_ACTIVE)
1074 i365_bset(sock, I365_ADDRWIN, I365_ENA_IO(map));
1076 } /* i365_set_io_map */
1078 /*====================================================================*/
1080 static int i365_set_mem_map(u_short sock, struct pccard_mem_map *mem)
1085 debug(1, "SetMemMap(%d, %d, %#2.2x, %d ns, %#llx-%#llx, "
1086 "%#x)\n", sock, mem->map, mem->flags, mem->speed,
1087 (unsigned long long)mem->res->start,
1088 (unsigned long long)mem->res->end, mem->card_start);
1091 if ((map > 4) || (mem->card_start > 0x3ffffff) ||
1092 (mem->res->start > mem->res->end) || (mem->speed > 1000))
1094 if ((mem->res->start > 0xffffff) || (mem->res->end > 0xffffff))
1097 /* Turn off the window before changing anything */
1098 if (i365_get(sock, I365_ADDRWIN) & I365_ENA_MEM(map))
1099 i365_bclr(sock, I365_ADDRWIN, I365_ENA_MEM(map));
1101 base = I365_MEM(map);
1102 i = (mem->res->start >> 12) & 0x0fff;
1103 if (mem->flags & MAP_16BIT) i |= I365_MEM_16BIT;
1104 if (mem->flags & MAP_0WS) i |= I365_MEM_0WS;
1105 i365_set_pair(sock, base+I365_W_START, i);
1107 i = (mem->res->end >> 12) & 0x0fff;
1108 switch (to_cycles(mem->speed)) {
1110 case 1: i |= I365_MEM_WS0; break;
1111 case 2: i |= I365_MEM_WS1; break;
1112 default: i |= I365_MEM_WS1 | I365_MEM_WS0; break;
1114 i365_set_pair(sock, base+I365_W_STOP, i);
1116 i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
1117 if (mem->flags & MAP_WRPROT) i |= I365_MEM_WRPROT;
1118 if (mem->flags & MAP_ATTRIB) i |= I365_MEM_REG;
1119 i365_set_pair(sock, base+I365_W_OFF, i);
1121 /* Turn on the window if necessary */
1122 if (mem->flags & MAP_ACTIVE)
1123 i365_bset(sock, I365_ADDRWIN, I365_ENA_MEM(map));
1125 } /* i365_set_mem_map */
1127 #if 0 /* driver model ordering issue */
1128 /*======================================================================
1130 Routines for accessing socket information and register dumps via
1131 /sys/class/pcmcia_socket/...
1133 ======================================================================*/
1135 static ssize_t show_info(struct class_device *class_dev, char *buf)
1137 struct i82365_socket *s = container_of(class_dev, struct i82365_socket, socket.dev);
1138 return sprintf(buf, "type: %s\npsock: %d\n",
1139 pcic[s->type].name, s->psock);
1142 static ssize_t show_exca(struct class_device *class_dev, char *buf)
1144 struct i82365_socket *s = container_of(class_dev, struct i82365_socket, socket.dev);
1145 unsigned short sock;
1148 unsigned long flags = 0;
1152 ISA_LOCK(sock, flags);
1153 for (i = 0; i < 0x40; i += 4) {
1154 ret += sprintf(buf, "%02x %02x %02x %02x%s",
1155 i365_get(sock,i), i365_get(sock,i+1),
1156 i365_get(sock,i+2), i365_get(sock,i+3),
1157 ((i % 16) == 12) ? "\n" : " ");
1160 ISA_UNLOCK(sock, flags);
1165 static CLASS_DEVICE_ATTR(exca, S_IRUGO, show_exca, NULL);
1166 static CLASS_DEVICE_ATTR(info, S_IRUGO, show_info, NULL);
1169 /*====================================================================*/
1171 /* this is horribly ugly... proper locking needs to be done here at
1173 #define LOCKED(x) do { \
1175 unsigned long flags; \
1176 spin_lock_irqsave(&isa_lock, flags); \
1178 spin_unlock_irqrestore(&isa_lock, flags); \
1183 static int pcic_get_status(struct pcmcia_socket *s, u_int *value)
1185 unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
1187 if (socket[sock].flags & IS_ALIVE) {
1192 LOCKED(i365_get_status(sock, value));
1195 static int pcic_set_socket(struct pcmcia_socket *s, socket_state_t *state)
1197 unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
1199 if (socket[sock].flags & IS_ALIVE)
1202 LOCKED(i365_set_socket(sock, state));
1205 static int pcic_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
1207 unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
1208 if (socket[sock].flags & IS_ALIVE)
1211 LOCKED(i365_set_io_map(sock, io));
1214 static int pcic_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem)
1216 unsigned int sock = container_of(s, struct i82365_socket, socket)->number;
1217 if (socket[sock].flags & IS_ALIVE)
1220 LOCKED(i365_set_mem_map(sock, mem));
1223 static int pcic_init(struct pcmcia_socket *s)
1226 struct resource res = { .start = 0, .end = 0x1000 };
1227 pccard_io_map io = { 0, 0, 0, 0, 1 };
1228 pccard_mem_map mem = { .res = &res, };
1230 for (i = 0; i < 2; i++) {
1232 pcic_set_io_map(s, &io);
1234 for (i = 0; i < 5; i++) {
1236 pcic_set_mem_map(s, &mem);
1241 static struct pccard_operations pcic_operations = {
1243 .get_status = pcic_get_status,
1244 .set_socket = pcic_set_socket,
1245 .set_io_map = pcic_set_io_map,
1246 .set_mem_map = pcic_set_mem_map,
1249 /*====================================================================*/
1251 static struct device_driver i82365_driver = {
1253 .bus = &platform_bus_type,
1254 .suspend = pcmcia_socket_dev_suspend,
1255 .resume = pcmcia_socket_dev_resume,
1258 static struct platform_device *i82365_device;
1260 static int __init init_i82365(void)
1264 ret = driver_register(&i82365_driver);
1268 i82365_device = platform_device_alloc("i82365", 0);
1269 if (i82365_device) {
1270 ret = platform_device_add(i82365_device);
1272 platform_device_put(i82365_device);
1277 goto err_driver_unregister;
1279 printk(KERN_INFO "Intel ISA PCIC probe: ");
1285 printk("not found.\n");
1287 goto err_dev_unregister;
1290 /* Set up interrupt handler(s) */
1292 ret = request_irq(cs_irq, pcic_interrupt, 0, "i82365", pcic_interrupt);
1295 goto err_socket_release;
1297 /* register sockets with the pcmcia core */
1298 for (i = 0; i < sockets; i++) {
1299 socket[i].socket.dev.parent = &i82365_device->dev;
1300 socket[i].socket.ops = &pcic_operations;
1301 socket[i].socket.resource_ops = &pccard_nonstatic_ops;
1302 socket[i].socket.owner = THIS_MODULE;
1303 socket[i].number = i;
1304 ret = pcmcia_register_socket(&socket[i].socket);
1306 socket[i].flags |= IS_REGISTERED;
1308 #if 0 /* driver model ordering issue */
1309 class_device_create_file(&socket[i].socket.dev,
1310 &class_device_attr_info);
1311 class_device_create_file(&socket[i].socket.dev,
1312 &class_device_attr_exca);
1316 /* Finally, schedule a polling interrupt */
1317 if (poll_interval != 0) {
1318 poll_timer.function = pcic_interrupt_wrapper;
1319 poll_timer.data = 0;
1320 init_timer(&poll_timer);
1321 poll_timer.expires = jiffies + poll_interval;
1322 add_timer(&poll_timer);
1327 for (i = 0; i < sockets; i++) {
1328 /* Turn off all interrupt sources! */
1329 i365_set(i, I365_CSCINT, 0);
1330 release_region(socket[i].ioaddr, 2);
1333 platform_device_unregister(i82365_device);
1334 release_region(i365_base, 2);
1337 pnp_disable_dev(i82365_pnpdev);
1339 err_driver_unregister:
1340 driver_unregister(&i82365_driver);
1345 static void __exit exit_i82365(void)
1349 for (i = 0; i < sockets; i++) {
1350 if (socket[i].flags & IS_REGISTERED)
1351 pcmcia_unregister_socket(&socket[i].socket);
1353 platform_device_unregister(i82365_device);
1354 if (poll_interval != 0)
1355 del_timer_sync(&poll_timer);
1357 free_irq(cs_irq, pcic_interrupt);
1358 for (i = 0; i < sockets; i++) {
1359 /* Turn off all interrupt sources! */
1360 i365_set(i, I365_CSCINT, 0);
1361 release_region(socket[i].ioaddr, 2);
1363 release_region(i365_base, 2);
1366 pnp_disable_dev(i82365_pnpdev);
1368 driver_unregister(&i82365_driver);
1371 module_init(init_i82365);
1372 module_exit(exit_i82365);
1373 MODULE_LICENSE("Dual MPL/GPL");
1374 /*====================================================================*/