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Thomas Gleixner09c434b2019-05-19 13:08:20 +01001// SPDX-License-Identifier: GPL-2.0-only
Simon Geis48398792019-12-13 14:53:06 +01002/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 * Driver for Intel I82092AA PCI-PCMCIA bridge.
4 *
5 * (C) 2001 Red Hat, Inc.
6 *
7 * Author: Arjan Van De Ven <arjanv@redhat.com>
8 * Loosly based on i82365.c from the pcmcia-cs package
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 */
10
11#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/module.h>
13#include <linux/pci.h>
14#include <linux/init.h>
15#include <linux/workqueue.h>
16#include <linux/interrupt.h>
17#include <linux/device.h>
18
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#include <pcmcia/ss.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
Simon Geisac5af872019-12-13 14:53:12 +010021#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022
23#include "i82092aa.h"
24#include "i82365.h"
25
26MODULE_LICENSE("GPL");
27
28/* PCI core routines */
Greg Kroah-Hartman0178a7a2014-07-18 16:58:07 -070029static const struct pci_device_id i82092aa_pci_ids[] = {
Axel Lin2b2c5d82011-12-27 16:17:46 +080030 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82092AA_0) },
31 { }
Linus Torvalds1da177e2005-04-16 15:20:36 -070032};
33MODULE_DEVICE_TABLE(pci, i82092aa_pci_ids);
34
Sam Ravnborgba66ddf2008-05-01 04:34:51 -070035static struct pci_driver i82092aa_pci_driver = {
Simon Geis48398792019-12-13 14:53:06 +010036 .name = "i82092aa",
37 .id_table = i82092aa_pci_ids,
38 .probe = i82092aa_pci_probe,
39 .remove = i82092aa_pci_remove,
Linus Torvalds1da177e2005-04-16 15:20:36 -070040};
41
42
43/* the pccard structure and its functions */
44static struct pccard_operations i82092aa_operations = {
Simon Geis48398792019-12-13 14:53:06 +010045 .init = i82092aa_init,
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 .get_status = i82092aa_get_status,
Linus Torvalds1da177e2005-04-16 15:20:36 -070047 .set_socket = i82092aa_set_socket,
48 .set_io_map = i82092aa_set_io_map,
49 .set_mem_map = i82092aa_set_mem_map,
50};
51
Lucas De Marchi25985ed2011-03-30 22:57:33 -030052/* The card can do up to 4 sockets, allocate a structure for each of them */
Linus Torvalds1da177e2005-04-16 15:20:36 -070053
54struct socket_info {
55 int number;
Simon Geis48398792019-12-13 14:53:06 +010056 int card_state;
57 /* 0 = no socket,
58 * 1 = empty socket,
59 * 2 = card but not initialized,
60 * 3 = operational card
61 */
62 unsigned int io_base; /* base io address of the socket */
63
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 struct pcmcia_socket socket;
65 struct pci_dev *dev; /* The PCI device for the socket */
66};
67
68#define MAX_SOCKETS 4
69static struct socket_info sockets[MAX_SOCKETS];
Simon Geis48398792019-12-13 14:53:06 +010070static int socket_count; /* shortcut */
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72
Simon Geis152b4bb2019-12-13 14:53:11 +010073static int i82092aa_pci_probe(struct pci_dev *dev,
74 const struct pci_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -070075{
76 unsigned char configbyte;
77 int i, ret;
Simon Geis48398792019-12-13 14:53:06 +010078
Simon Geis90886462019-12-13 14:53:10 +010079 ret = pci_enable_device(dev);
80 if (ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 return ret;
Simon Geis48398792019-12-13 14:53:06 +010082
Simon Geis152b4bb2019-12-13 14:53:11 +010083 /* PCI Configuration Control */
84 pci_read_config_byte(dev, 0x40, &configbyte);
85
Simon Geis48398792019-12-13 14:53:06 +010086 switch (configbyte&6) {
Simon Geis6aaf8ff2019-12-13 14:53:09 +010087 case 0:
88 socket_count = 2;
89 break;
90 case 2:
91 socket_count = 1;
92 break;
93 case 4:
94 case 6:
95 socket_count = 4;
96 break;
Simon Geis48398792019-12-13 14:53:06 +010097
Simon Geis6aaf8ff2019-12-13 14:53:09 +010098 default:
99 dev_err(&dev->dev,
100 "Oops, you did something we didn't think of.\n");
101 ret = -EIO;
102 goto err_out_disable;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 }
Simon Geis26a0a1042019-12-13 14:53:04 +0100104 dev_info(&dev->dev, "configured as a %d socket device.\n",
105 socket_count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106
107 if (!request_region(pci_resource_start(dev, 0), 2, "i82092aa")) {
108 ret = -EBUSY;
109 goto err_out_disable;
110 }
Simon Geis48398792019-12-13 14:53:06 +0100111
112 for (i = 0; i < socket_count; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 sockets[i].card_state = 1; /* 1 = present but empty */
114 sockets[i].io_base = pci_resource_start(dev, 0);
115 sockets[i].socket.features |= SS_CAP_PCCARD;
116 sockets[i].socket.map_size = 0x1000;
117 sockets[i].socket.irq_mask = 0;
118 sockets[i].socket.pci_irq = dev->irq;
Dominik Brodowski7a96e872010-03-13 17:42:39 +0100119 sockets[i].socket.cb_dev = dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 sockets[i].socket.owner = THIS_MODULE;
121
122 sockets[i].number = i;
Simon Geis48398792019-12-13 14:53:06 +0100123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 if (card_present(i)) {
125 sockets[i].card_state = 3;
Simon Geis26a0a1042019-12-13 14:53:04 +0100126 dev_dbg(&dev->dev, "slot %i is occupied\n", i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127 } else {
Simon Geis26a0a1042019-12-13 14:53:04 +0100128 dev_dbg(&dev->dev, "slot %i is vacant\n", i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 }
130 }
Simon Geis48398792019-12-13 14:53:06 +0100131
Simon Geis152b4bb2019-12-13 14:53:11 +0100132 /* Now, specifiy that all interrupts are to be done as PCI interrupts
133 * bitmask, one bit per event, 1 = PCI interrupt, 0 = ISA interrupt
134 */
135 configbyte = 0xFF;
136
137 /* PCI Interrupt Routing Register */
138 pci_write_config_byte(dev, 0x50, configbyte);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
140 /* Register the interrupt handler */
Adam Zerella836e9492019-08-25 15:35:10 +1000141 dev_dbg(&dev->dev, "Requesting interrupt %i\n", dev->irq);
Simon Geis90886462019-12-13 14:53:10 +0100142 ret = request_irq(dev->irq, i82092aa_interrupt, IRQF_SHARED,
143 "i82092aa", i82092aa_interrupt);
144 if (ret) {
Simon Geis26a0a1042019-12-13 14:53:04 +0100145 dev_err(&dev->dev, "Failed to register IRQ %d, aborting\n",
146 dev->irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 goto err_out_free_res;
148 }
149
Simon Geis48398792019-12-13 14:53:06 +0100150 for (i = 0; i < socket_count; i++) {
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200151 sockets[i].socket.dev.parent = &dev->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152 sockets[i].socket.ops = &i82092aa_operations;
153 sockets[i].socket.resource_ops = &pccard_nonstatic_ops;
154 ret = pcmcia_register_socket(&sockets[i].socket);
Simon Geisae1f62c2019-12-13 14:53:07 +0100155 if (ret)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 goto err_out_free_sockets;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 }
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 return 0;
160
161err_out_free_sockets:
162 if (i) {
Simon Geisae1f62c2019-12-13 14:53:07 +0100163 for (i--; i >= 0; i--)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 pcmcia_unregister_socket(&sockets[i].socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 }
166 free_irq(dev->irq, i82092aa_interrupt);
167err_out_free_res:
168 release_region(pci_resource_start(dev, 0), 2);
169err_out_disable:
170 pci_disable_device(dev);
Simon Geis48398792019-12-13 14:53:06 +0100171 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172}
173
Bill Pembertone765a022012-11-19 13:26:05 -0500174static void i82092aa_pci_remove(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175{
Dan Carpenter36c286d2012-12-14 18:01:08 +0300176 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178 free_irq(dev->irq, i82092aa_interrupt);
179
Dan Carpenter36c286d2012-12-14 18:01:08 +0300180 for (i = 0; i < socket_count; i++)
181 pcmcia_unregister_socket(&sockets[i].socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182}
183
184static DEFINE_SPINLOCK(port_lock);
185
186/* basic value read/write functions */
187
188static unsigned char indirect_read(int socket, unsigned short reg)
189{
190 unsigned short int port;
191 unsigned char val;
192 unsigned long flags;
Simon Geis4ae66dd2019-12-13 14:53:08 +0100193
Simon Geis48398792019-12-13 14:53:06 +0100194 spin_lock_irqsave(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 reg += socket * 0x40;
196 port = sockets[socket].io_base;
Simon Geis48398792019-12-13 14:53:06 +0100197 outb(reg, port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 val = inb(port+1);
Simon Geis48398792019-12-13 14:53:06 +0100199 spin_unlock_irqrestore(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 return val;
201}
202
203#if 0
204static unsigned short indirect_read16(int socket, unsigned short reg)
205{
206 unsigned short int port;
207 unsigned short tmp;
208 unsigned long flags;
Simon Geis4ae66dd2019-12-13 14:53:08 +0100209
Simon Geis48398792019-12-13 14:53:06 +0100210 spin_lock_irqsave(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211 reg = reg + socket * 0x40;
212 port = sockets[socket].io_base;
Simon Geis48398792019-12-13 14:53:06 +0100213 outb(reg, port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 tmp = inb(port+1);
215 reg++;
Simon Geis48398792019-12-13 14:53:06 +0100216 outb(reg, port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 tmp = tmp | (inb(port+1)<<8);
Simon Geis48398792019-12-13 14:53:06 +0100218 spin_unlock_irqrestore(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 return tmp;
220}
221#endif
222
223static void indirect_write(int socket, unsigned short reg, unsigned char value)
224{
225 unsigned short int port;
226 unsigned long flags;
Simon Geis4ae66dd2019-12-13 14:53:08 +0100227
Simon Geis48398792019-12-13 14:53:06 +0100228 spin_lock_irqsave(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229 reg = reg + socket * 0x40;
Simon Geis48398792019-12-13 14:53:06 +0100230 port = sockets[socket].io_base;
231 outb(reg, port);
232 outb(value, port+1);
233 spin_unlock_irqrestore(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234}
235
236static void indirect_setbit(int socket, unsigned short reg, unsigned char mask)
237{
238 unsigned short int port;
239 unsigned char val;
240 unsigned long flags;
Simon Geis4ae66dd2019-12-13 14:53:08 +0100241
Simon Geis48398792019-12-13 14:53:06 +0100242 spin_lock_irqsave(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 reg = reg + socket * 0x40;
Simon Geis48398792019-12-13 14:53:06 +0100244 port = sockets[socket].io_base;
245 outb(reg, port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 val = inb(port+1);
247 val |= mask;
Simon Geis48398792019-12-13 14:53:06 +0100248 outb(reg, port);
249 outb(val, port+1);
250 spin_unlock_irqrestore(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251}
252
253
Simon Geis152b4bb2019-12-13 14:53:11 +0100254static void indirect_resetbit(int socket,
255 unsigned short reg, unsigned char mask)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256{
257 unsigned short int port;
258 unsigned char val;
259 unsigned long flags;
Simon Geis4ae66dd2019-12-13 14:53:08 +0100260
Simon Geis48398792019-12-13 14:53:06 +0100261 spin_lock_irqsave(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 reg = reg + socket * 0x40;
Simon Geis48398792019-12-13 14:53:06 +0100263 port = sockets[socket].io_base;
264 outb(reg, port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 val = inb(port+1);
266 val &= ~mask;
Simon Geis48398792019-12-13 14:53:06 +0100267 outb(reg, port);
268 outb(val, port+1);
269 spin_unlock_irqrestore(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270}
271
Simon Geis152b4bb2019-12-13 14:53:11 +0100272static void indirect_write16(int socket,
273 unsigned short reg, unsigned short value)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274{
275 unsigned short int port;
276 unsigned char val;
277 unsigned long flags;
Simon Geis4ae66dd2019-12-13 14:53:08 +0100278
Simon Geis48398792019-12-13 14:53:06 +0100279 spin_lock_irqsave(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 reg = reg + socket * 0x40;
Simon Geis48398792019-12-13 14:53:06 +0100281 port = sockets[socket].io_base;
282
283 outb(reg, port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284 val = value & 255;
Simon Geis48398792019-12-13 14:53:06 +0100285 outb(val, port+1);
286
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 reg++;
Simon Geis48398792019-12-13 14:53:06 +0100288
289 outb(reg, port);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290 val = value>>8;
Simon Geis48398792019-12-13 14:53:06 +0100291 outb(val, port+1);
292 spin_unlock_irqrestore(&port_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293}
294
295/* simple helper functions */
296/* External clock time, in nanoseconds. 120 ns = 8.33 MHz */
297static int cycle_time = 120;
298
299static int to_cycles(int ns)
300{
Simon Geis48398792019-12-13 14:53:06 +0100301 if (cycle_time != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302 return ns/cycle_time;
303 else
304 return 0;
305}
Simon Geis48398792019-12-13 14:53:06 +0100306
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307
308/* Interrupt handler functionality */
309
David Howells7d12e782006-10-05 14:55:46 +0100310static irqreturn_t i82092aa_interrupt(int irq, void *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311{
312 int i;
313 int loopcount = 0;
314 int handled = 0;
315
Simon Geis48398792019-12-13 14:53:06 +0100316 unsigned int events, active = 0;
317
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 while (1) {
319 loopcount++;
Simon Geis48398792019-12-13 14:53:06 +0100320 if (loopcount > 20) {
Simon Geis26a0a1042019-12-13 14:53:04 +0100321 pr_err("i82092aa: infinite eventloop in interrupt\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 break;
323 }
Simon Geis48398792019-12-13 14:53:06 +0100324
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 active = 0;
Simon Geis48398792019-12-13 14:53:06 +0100326
327 for (i = 0; i < socket_count; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 int csc;
Simon Geis4ae66dd2019-12-13 14:53:08 +0100329
Simon Geis152b4bb2019-12-13 14:53:11 +0100330 /* Inactive socket, should not happen */
331 if (sockets[i].card_state == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 continue;
Simon Geis48398792019-12-13 14:53:06 +0100333
Simon Geis152b4bb2019-12-13 14:53:11 +0100334 /* card status change register */
335 csc = indirect_read(i, I365_CSC);
Simon Geis48398792019-12-13 14:53:06 +0100336
337 if (csc == 0) /* no events on this socket */
338 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 handled = 1;
340 events = 0;
Simon Geis48398792019-12-13 14:53:06 +0100341
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 if (csc & I365_CSC_DETECT) {
343 events |= SS_DETECT;
Simon Geis26a0a1042019-12-13 14:53:04 +0100344 dev_info(&sockets[i].dev->dev,
345 "Card detected in socket %i!\n", i);
Simon Geis48398792019-12-13 14:53:06 +0100346 }
347
348 if (indirect_read(i, I365_INTCTL) & I365_PC_IOCARD) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 /* For IO/CARDS, bit 0 means "read the card" */
Simon Geis152b4bb2019-12-13 14:53:11 +0100350 if (csc & I365_CSC_STSCHG)
351 events |= SS_STSCHG;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 } else {
353 /* Check for battery/ready events */
Simon Geis152b4bb2019-12-13 14:53:11 +0100354 if (csc & I365_CSC_BVD1)
355 events |= SS_BATDEAD;
356 if (csc & I365_CSC_BVD2)
357 events |= SS_BATWARN;
358 if (csc & I365_CSC_READY)
359 events |= SS_READY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 }
Simon Geis48398792019-12-13 14:53:06 +0100361
Simon Geisae1f62c2019-12-13 14:53:07 +0100362 if (events)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 pcmcia_parse_events(&sockets[i].socket, events);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 active |= events;
365 }
Simon Geis48398792019-12-13 14:53:06 +0100366
367 if (active == 0) /* no more events to handle */
368 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369 }
370 return IRQ_RETVAL(handled);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371}
372
373
374
375/* socket functions */
376
377static int card_present(int socketno)
Simon Geis48398792019-12-13 14:53:06 +0100378{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 unsigned int val;
Simon Geis4ae66dd2019-12-13 14:53:08 +0100380
Simon Geis48398792019-12-13 14:53:06 +0100381 if ((socketno < 0) || (socketno >= MAX_SOCKETS))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 return 0;
383 if (sockets[socketno].io_base == 0)
384 return 0;
385
Simon Geis48398792019-12-13 14:53:06 +0100386
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 val = indirect_read(socketno, 1); /* Interface status register */
Simon Geis52739f02019-12-13 14:53:13 +0100388 if ((val&12) == 12)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 return 1;
Simon Geis48398792019-12-13 14:53:06 +0100390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 return 0;
392}
393
394static void set_bridge_state(int sock)
395{
Simon Geis48398792019-12-13 14:53:06 +0100396 indirect_write(sock, I365_GBLCTL, 0x00);
397 indirect_write(sock, I365_GENCTL, 0x00);
398
399 indirect_setbit(sock, I365_INTCTL, 0x08);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400}
401
402
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403static int i82092aa_init(struct pcmcia_socket *sock)
404{
405 int i;
406 struct resource res = { .start = 0, .end = 0x0fff };
Simon Geis48398792019-12-13 14:53:06 +0100407 pccard_io_map io = { 0, 0, 0, 0, 1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408 pccard_mem_map mem = { .res = &res, };
Simon Geis48398792019-12-13 14:53:06 +0100409
Simon Geis48398792019-12-13 14:53:06 +0100410 for (i = 0; i < 2; i++) {
411 io.map = i;
412 i82092aa_set_io_map(sock, &io);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 }
Simon Geis48398792019-12-13 14:53:06 +0100414 for (i = 0; i < 5; i++) {
415 mem.map = i;
416 i82092aa_set_mem_map(sock, &mem);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 }
Simon Geis52739f02019-12-13 14:53:13 +0100418
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 return 0;
420}
Simon Geis48398792019-12-13 14:53:06 +0100421
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422static int i82092aa_get_status(struct pcmcia_socket *socket, u_int *value)
423{
Simon Geis152b4bb2019-12-13 14:53:11 +0100424 unsigned int sock = container_of(socket,
425 struct socket_info, socket)->number;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 unsigned int status;
Simon Geis152b4bb2019-12-13 14:53:11 +0100427
428 /* Interface Status Register */
429 status = indirect_read(sock, I365_STATUS);
430
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 *value = 0;
Simon Geis48398792019-12-13 14:53:06 +0100432
Simon Geisae1f62c2019-12-13 14:53:07 +0100433 if ((status & I365_CS_DETECT) == I365_CS_DETECT)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434 *value |= SS_DETECT;
Simon Geis48398792019-12-13 14:53:06 +0100435
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 /* IO cards have a different meaning of bits 0,1 */
437 /* Also notice the inverse-logic on the bits */
Simon Geis48398792019-12-13 14:53:06 +0100438 if (indirect_read(sock, I365_INTCTL) & I365_PC_IOCARD) {
Colin Ian King84182fc2018-10-31 16:46:02 +0000439 /* IO card */
440 if (!(status & I365_CS_STSCHG))
441 *value |= SS_STSCHG;
442 } else { /* non I/O card */
443 if (!(status & I365_CS_BVD1))
444 *value |= SS_BATDEAD;
445 if (!(status & I365_CS_BVD2))
446 *value |= SS_BATWARN;
447 }
Simon Geis48398792019-12-13 14:53:06 +0100448
Colin Ian King84182fc2018-10-31 16:46:02 +0000449 if (status & I365_CS_WRPROT)
450 (*value) |= SS_WRPROT; /* card is write protected */
Simon Geis48398792019-12-13 14:53:06 +0100451
Colin Ian King84182fc2018-10-31 16:46:02 +0000452 if (status & I365_CS_READY)
453 (*value) |= SS_READY; /* card is not busy */
Simon Geis48398792019-12-13 14:53:06 +0100454
Colin Ian King84182fc2018-10-31 16:46:02 +0000455 if (status & I365_CS_POWERON)
456 (*value) |= SS_POWERON; /* power is applied to the card */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 return 0;
459}
460
461
Simon Geis152b4bb2019-12-13 14:53:11 +0100462static int i82092aa_set_socket(struct pcmcia_socket *socket,
463 socket_state_t *state)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464{
Simon Geis26a0a1042019-12-13 14:53:04 +0100465 struct socket_info *sock_info = container_of(socket, struct socket_info,
466 socket);
467 unsigned int sock = sock_info->number;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468 unsigned char reg;
Simon Geis48398792019-12-13 14:53:06 +0100469
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 /* First, set the global controller options */
Simon Geis48398792019-12-13 14:53:06 +0100471
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 set_bridge_state(sock);
Simon Geis48398792019-12-13 14:53:06 +0100473
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 /* Values for the IGENC register */
Simon Geis48398792019-12-13 14:53:06 +0100475
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476 reg = 0;
Simon Geis152b4bb2019-12-13 14:53:11 +0100477
478 /* The reset bit has "inverse" logic */
479 if (!(state->flags & SS_RESET))
Simon Geis48398792019-12-13 14:53:06 +0100480 reg = reg | I365_PC_RESET;
481 if (state->flags & SS_IOCARD)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 reg = reg | I365_PC_IOCARD;
Simon Geis48398792019-12-13 14:53:06 +0100483
Simon Geis152b4bb2019-12-13 14:53:11 +0100484 /* IGENC, Interrupt and General Control Register */
485 indirect_write(sock, I365_INTCTL, reg);
Simon Geis48398792019-12-13 14:53:06 +0100486
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 /* Power registers */
Simon Geis48398792019-12-13 14:53:06 +0100488
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
Simon Geis48398792019-12-13 14:53:06 +0100490
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 if (state->flags & SS_PWR_AUTO) {
Simon Geis26a0a1042019-12-13 14:53:04 +0100492 dev_info(&sock_info->dev->dev, "Auto power\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 reg |= I365_PWR_AUTO; /* automatic power mngmnt */
494 }
495 if (state->flags & SS_OUTPUT_ENA) {
Simon Geis26a0a1042019-12-13 14:53:04 +0100496 dev_info(&sock_info->dev->dev, "Power Enabled\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 reg |= I365_PWR_OUT; /* enable power */
498 }
Simon Geis48398792019-12-13 14:53:06 +0100499
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 switch (state->Vcc) {
Simon Geis6aaf8ff2019-12-13 14:53:09 +0100501 case 0:
502 break;
503 case 50:
504 dev_info(&sock_info->dev->dev,
505 "setting voltage to Vcc to 5V on socket %i\n",
506 sock);
507 reg |= I365_VCC_5V;
508 break;
509 default:
510 dev_err(&sock_info->dev->dev,
511 "%s called with invalid VCC power value: %i",
512 __func__, state->Vcc);
Simon Geis6aaf8ff2019-12-13 14:53:09 +0100513 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 }
Simon Geis48398792019-12-13 14:53:06 +0100515
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 switch (state->Vpp) {
Simon Geis6aaf8ff2019-12-13 14:53:09 +0100517 case 0:
518 dev_info(&sock_info->dev->dev,
519 "not setting Vpp on socket %i\n", sock);
520 break;
521 case 50:
522 dev_info(&sock_info->dev->dev,
523 "setting Vpp to 5.0 for socket %i\n", sock);
524 reg |= I365_VPP1_5V | I365_VPP2_5V;
525 break;
526 case 120:
527 dev_info(&sock_info->dev->dev, "setting Vpp to 12.0\n");
528 reg |= I365_VPP1_12V | I365_VPP2_12V;
529 break;
530 default:
531 dev_err(&sock_info->dev->dev,
532 "%s called with invalid VPP power value: %i",
533 __func__, state->Vcc);
Simon Geis6aaf8ff2019-12-13 14:53:09 +0100534 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535 }
Simon Geis48398792019-12-13 14:53:06 +0100536
537 if (reg != indirect_read(sock, I365_POWER)) /* only write if changed */
538 indirect_write(sock, I365_POWER, reg);
539
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540 /* Enable specific interrupt events */
Simon Geis48398792019-12-13 14:53:06 +0100541
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542 reg = 0x00;
Simon Geisae1f62c2019-12-13 14:53:07 +0100543 if (state->csc_mask & SS_DETECT)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544 reg |= I365_CSC_DETECT;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545 if (state->flags & SS_IOCARD) {
546 if (state->csc_mask & SS_STSCHG)
547 reg |= I365_CSC_STSCHG;
548 } else {
Simon Geis48398792019-12-13 14:53:06 +0100549 if (state->csc_mask & SS_BATDEAD)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550 reg |= I365_CSC_BVD1;
Simon Geis48398792019-12-13 14:53:06 +0100551 if (state->csc_mask & SS_BATWARN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552 reg |= I365_CSC_BVD2;
Simon Geis48398792019-12-13 14:53:06 +0100553 if (state->csc_mask & SS_READY)
554 reg |= I365_CSC_READY;
555
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556 }
Simon Geis48398792019-12-13 14:53:06 +0100557
Simon Geis152b4bb2019-12-13 14:53:11 +0100558 /* now write the value and clear the (probably bogus) pending stuff
559 * by doing a dummy read
560 */
Simon Geis48398792019-12-13 14:53:06 +0100561
562 indirect_write(sock, I365_CSCINT, reg);
563 (void)indirect_read(sock, I365_CSC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565 return 0;
566}
567
Simon Geis152b4bb2019-12-13 14:53:11 +0100568static int i82092aa_set_io_map(struct pcmcia_socket *socket,
569 struct pccard_io_map *io)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570{
Simon Geis26a0a1042019-12-13 14:53:04 +0100571 struct socket_info *sock_info = container_of(socket, struct socket_info,
572 socket);
573 unsigned int sock = sock_info->number;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 unsigned char map, ioctl;
Simon Geis48398792019-12-13 14:53:06 +0100575
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576 map = io->map;
Simon Geis48398792019-12-13 14:53:06 +0100577
578 /* Check error conditions */
Simon Geis52739f02019-12-13 14:53:13 +0100579 if (map > 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 return -EINVAL;
Simon Geis52739f02019-12-13 14:53:13 +0100581
Simon Geis152b4bb2019-12-13 14:53:11 +0100582 if ((io->start > 0xffff) || (io->stop > 0xffff)
Simon Geis52739f02019-12-13 14:53:13 +0100583 || (io->stop < io->start))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585
Simon Geis48398792019-12-13 14:53:06 +0100586 /* Turn off the window before changing anything */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_IO(map))
588 indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_IO(map));
589
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 /* write the new values */
Simon Geis48398792019-12-13 14:53:06 +0100591 indirect_write16(sock, I365_IO(map)+I365_W_START, io->start);
592 indirect_write16(sock, I365_IO(map)+I365_W_STOP, io->stop);
593
594 ioctl = indirect_read(sock, I365_IOCTL) & ~I365_IOCTL_MASK(map);
595
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 if (io->flags & (MAP_16BIT|MAP_AUTOSZ))
597 ioctl |= I365_IOCTL_16BIT(map);
Simon Geis48398792019-12-13 14:53:06 +0100598
599 indirect_write(sock, I365_IOCTL, ioctl);
600
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 /* Turn the window back on if needed */
602 if (io->flags & MAP_ACTIVE)
Simon Geis48398792019-12-13 14:53:06 +0100603 indirect_setbit(sock, I365_ADDRWIN, I365_ENA_IO(map));
604
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605 return 0;
606}
607
Simon Geis152b4bb2019-12-13 14:53:11 +0100608static int i82092aa_set_mem_map(struct pcmcia_socket *socket,
609 struct pccard_mem_map *mem)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610{
Simon Geis152b4bb2019-12-13 14:53:11 +0100611 struct socket_info *sock_info = container_of(socket, struct socket_info,
612 socket);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613 unsigned int sock = sock_info->number;
614 struct pci_bus_region region;
615 unsigned short base, i;
616 unsigned char map;
Simon Geis48398792019-12-13 14:53:06 +0100617
Yinghai Lufc279852013-12-09 22:54:40 -0800618 pcibios_resource_to_bus(sock_info->dev->bus, &region, mem->res);
Simon Geis48398792019-12-13 14:53:06 +0100619
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620 map = mem->map;
Simon Geis52739f02019-12-13 14:53:13 +0100621 if (map > 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622 return -EINVAL;
Simon Geis48398792019-12-13 14:53:06 +0100623
624 if ((mem->card_start > 0x3ffffff) || (region.start > region.end) ||
625 (mem->speed > 1000)) {
Simon Geis26a0a1042019-12-13 14:53:04 +0100626 dev_err(&sock_info->dev->dev,
Simon Geis152b4bb2019-12-13 14:53:11 +0100627 "invalid mem map for socket %i: %llx to %llx with a start of %x\n",
Andrew Mortonf96ee7a2008-02-04 23:35:48 -0800628 sock,
629 (unsigned long long)region.start,
630 (unsigned long long)region.end,
631 mem->card_start);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 return -EINVAL;
633 }
Simon Geis48398792019-12-13 14:53:06 +0100634
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 /* Turn off the window before changing anything */
636 if (indirect_read(sock, I365_ADDRWIN) & I365_ENA_MEM(map))
Simon Geis48398792019-12-13 14:53:06 +0100637 indirect_resetbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
638
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639 /* write the start address */
640 base = I365_MEM(map);
641 i = (region.start >> 12) & 0x0fff;
Simon Geis48398792019-12-13 14:53:06 +0100642 if (mem->flags & MAP_16BIT)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643 i |= I365_MEM_16BIT;
644 if (mem->flags & MAP_0WS)
Simon Geis48398792019-12-13 14:53:06 +0100645 i |= I365_MEM_0WS;
646 indirect_write16(sock, base+I365_W_START, i);
647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648 /* write the stop address */
Simon Geis48398792019-12-13 14:53:06 +0100649
650 i = (region.end >> 12) & 0x0fff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651 switch (to_cycles(mem->speed)) {
Simon Geis6aaf8ff2019-12-13 14:53:09 +0100652 case 0:
653 break;
654 case 1:
655 i |= I365_MEM_WS0;
656 break;
657 case 2:
658 i |= I365_MEM_WS1;
659 break;
660 default:
661 i |= I365_MEM_WS1 | I365_MEM_WS0;
662 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663 }
Simon Geis48398792019-12-13 14:53:06 +0100664
665 indirect_write16(sock, base+I365_W_STOP, i);
666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667 /* card start */
Simon Geis48398792019-12-13 14:53:06 +0100668
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 i = ((mem->card_start - region.start) >> 12) & 0x3fff;
670 if (mem->flags & MAP_WRPROT)
671 i |= I365_MEM_WRPROT;
Simon Geis26a0a1042019-12-13 14:53:04 +0100672 if (mem->flags & MAP_ATTRIB)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 i |= I365_MEM_REG;
Simon Geis48398792019-12-13 14:53:06 +0100674 indirect_write16(sock, base+I365_W_OFF, i);
675
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676 /* Enable the window if necessary */
677 if (mem->flags & MAP_ACTIVE)
678 indirect_setbit(sock, I365_ADDRWIN, I365_ENA_MEM(map));
Simon Geis48398792019-12-13 14:53:06 +0100679
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 return 0;
681}
682
683static int i82092aa_module_init(void)
684{
Sam Ravnborgba66ddf2008-05-01 04:34:51 -0700685 return pci_register_driver(&i82092aa_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686}
687
688static void i82092aa_module_exit(void)
689{
Sam Ravnborgba66ddf2008-05-01 04:34:51 -0700690 pci_unregister_driver(&i82092aa_pci_driver);
Simon Geis48398792019-12-13 14:53:06 +0100691 if (sockets[0].io_base > 0)
Simon Geis6aaf8ff2019-12-13 14:53:09 +0100692 release_region(sockets[0].io_base, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693}
694
695module_init(i82092aa_module_init);
696module_exit(i82092aa_module_exit);
697