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63#include <linux/errno.h>
64#include <linux/init.h>
65#include <linux/module.h>
66#include <linux/types.h>
67#include <linux/interrupt.h>
68#include <linux/ioport.h>
69#include <linux/serial.h>
70#include <linux/pci.h>
71#include <linux/parport.h>
72#include <linux/parport_pc.h>
73#include <linux/termios.h>
74#include <linux/tty.h>
75#include <linux/serial_core.h>
76#include <linux/serial_8250.h>
77#include <linux/delay.h>
78
79#include <asm/io.h>
80#include <asm/hardware.h>
81#include <asm/superio.h>
82
83static struct superio_device sio_dev;
84
85
86#undef DEBUG_SUPERIO_INIT
87
88#ifdef DEBUG_SUPERIO_INIT
89#define DBG_INIT(x...) printk(x)
90#else
91#define DBG_INIT(x...)
92#endif
93
94#define SUPERIO "SuperIO"
95#define PFX SUPERIO ": "
96
97static irqreturn_t
98superio_interrupt(int parent_irq, void *devp)
99{
100 u8 results;
101 u8 local_irq;
102
103
104 outb (OCW3_POLL,IC_PIC1+0);
105
106 results = inb(IC_PIC1+0);
107
108
109
110
111
112
113 if ((results & 0x80) == 0) {
114
115
116
117
118 return IRQ_NONE;
119 }
120
121
122 local_irq = results & 0x0f;
123
124 if (local_irq == 2 || local_irq > 7) {
125 printk(KERN_ERR PFX "slave interrupted!\n");
126 return IRQ_HANDLED;
127 }
128
129 if (local_irq == 7) {
130
131
132
133 outb(OCW3_ISR,IC_PIC1+0);
134 results = inb(IC_PIC1+0);
135 if ((results & 0x80) == 0) {
136 printk(KERN_WARNING PFX "spurious interrupt!\n");
137 return IRQ_HANDLED;
138 }
139 }
140
141
142 generic_handle_irq(local_irq);
143
144
145
146
147 outb((OCW2_SEOI|local_irq),IC_PIC1 + 0);
148 return IRQ_HANDLED;
149}
150
151
152static void
153superio_init(struct pci_dev *pcidev)
154{
155 struct superio_device *sio = &sio_dev;
156 struct pci_dev *pdev = sio->lio_pdev;
157 u16 word;
158 int ret;
159
160 if (sio->suckyio_irq_enabled)
161 return;
162
163 BUG_ON(!pdev);
164 BUG_ON(!sio->usb_pdev);
165
166
167 pdev->irq = sio->usb_pdev->irq;
168
169
170 sio->usb_pdev->irq = superio_fixup_irq(sio->usb_pdev);
171
172 printk(KERN_INFO PFX "Found NS87560 Legacy I/O device at %s (IRQ %i)\n",
173 pci_name(pdev), pdev->irq);
174
175 pci_read_config_dword (pdev, SIO_SP1BAR, &sio->sp1_base);
176 sio->sp1_base &= ~1;
177 printk(KERN_INFO PFX "Serial port 1 at 0x%x\n", sio->sp1_base);
178
179 pci_read_config_dword (pdev, SIO_SP2BAR, &sio->sp2_base);
180 sio->sp2_base &= ~1;
181 printk(KERN_INFO PFX "Serial port 2 at 0x%x\n", sio->sp2_base);
182
183 pci_read_config_dword (pdev, SIO_PPBAR, &sio->pp_base);
184 sio->pp_base &= ~1;
185 printk(KERN_INFO PFX "Parallel port at 0x%x\n", sio->pp_base);
186
187 pci_read_config_dword (pdev, SIO_FDCBAR, &sio->fdc_base);
188 sio->fdc_base &= ~1;
189 printk(KERN_INFO PFX "Floppy controller at 0x%x\n", sio->fdc_base);
190 pci_read_config_dword (pdev, SIO_ACPIBAR, &sio->acpi_base);
191 sio->acpi_base &= ~1;
192 printk(KERN_INFO PFX "ACPI at 0x%x\n", sio->acpi_base);
193
194 request_region (IC_PIC1, 0x1f, "pic1");
195 request_region (IC_PIC2, 0x1f, "pic2");
196 request_region (sio->acpi_base, 0x1f, "acpi");
197
198
199 pci_read_config_word (pdev, PCI_COMMAND, &word);
200 word |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_IO;
201 pci_write_config_word (pdev, PCI_COMMAND, word);
202
203 pci_set_master (pdev);
204 ret = pci_enable_device(pdev);
205 BUG_ON(ret < 0);
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222 pci_write_config_dword (pdev, 0x64, 0x82000000U);
223
224
225
226
227
228
229
230 pci_write_config_dword (pdev, TRIGGER_2, 0x07654300U);
231
232
233
234
235
236
237
238 pci_write_config_dword (pdev, CFG_IR_INTAB, 0x00001000U);
239
240
241
242
243
244
245 pci_write_config_dword (pdev, CFG_IR_USB, 0x4c880000U);
246
247
248 outb (0x11,IC_PIC1+0);
249 outb (0x00,IC_PIC1+1);
250 outb (0x04,IC_PIC1+1);
251 outb (0x01,IC_PIC1+1);
252
253
254 outb (0xff,IC_PIC1+1);
255 outb (0xc2,IC_PIC1+0);
256
257
258 outb (0x11,IC_PIC2+0);
259 outb (0x00,IC_PIC2+1);
260 outb (0x02,IC_PIC2+1);
261 outb (0x01,IC_PIC2+1);
262
263
264 outb (0xff,IC_PIC1+1);
265 outb (0x68,IC_PIC1+0);
266
267
268 outb (0xff,IC_PIC1+1);
269
270
271 outb(1, sio->acpi_base + USB_REG_CR);
272 if (inb(sio->acpi_base + USB_REG_CR) & 1)
273 printk(KERN_INFO PFX "USB regulator enabled\n");
274 else
275 printk(KERN_ERR PFX "USB regulator not initialized!\n");
276
277 if (request_irq(pdev->irq, superio_interrupt, 0,
278 SUPERIO, (void *)sio)) {
279
280 printk(KERN_ERR PFX "could not get irq\n");
281 BUG();
282 return;
283 }
284
285 sio->suckyio_irq_enabled = 1;
286}
287DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO, superio_init);
288
289static void superio_mask_irq(struct irq_data *d)
290{
291 unsigned int irq = d->irq;
292 u8 r8;
293
294 if ((irq < 1) || (irq == 2) || (irq > 7)) {
295 printk(KERN_ERR PFX "Illegal irq number.\n");
296 BUG();
297 return;
298 }
299
300
301
302 r8 = inb(IC_PIC1+1);
303 r8 |= (1 << irq);
304 outb (r8,IC_PIC1+1);
305}
306
307static void superio_unmask_irq(struct irq_data *d)
308{
309 unsigned int irq = d->irq;
310 u8 r8;
311
312 if ((irq < 1) || (irq == 2) || (irq > 7)) {
313 printk(KERN_ERR PFX "Illegal irq number (%d).\n", irq);
314 BUG();
315 return;
316 }
317
318
319 r8 = inb(IC_PIC1+1);
320 r8 &= ~(1 << irq);
321 outb (r8,IC_PIC1+1);
322}
323
324static struct irq_chip superio_interrupt_type = {
325 .name = SUPERIO,
326 .irq_unmask = superio_unmask_irq,
327 .irq_mask = superio_mask_irq,
328};
329
330#ifdef DEBUG_SUPERIO_INIT
331static unsigned short expected_device[3] = {
332 PCI_DEVICE_ID_NS_87415,
333 PCI_DEVICE_ID_NS_87560_LIO,
334 PCI_DEVICE_ID_NS_87560_USB
335};
336#endif
337
338int superio_fixup_irq(struct pci_dev *pcidev)
339{
340 int local_irq, i;
341
342#ifdef DEBUG_SUPERIO_INIT
343 int fn;
344 fn = PCI_FUNC(pcidev->devfn);
345
346
347 if (expected_device[fn] != pcidev->device) {
348 BUG();
349 return -1;
350 }
351 printk("superio_fixup_irq(%s) ven 0x%x dev 0x%x from %pf\n",
352 pci_name(pcidev),
353 pcidev->vendor, pcidev->device,
354 __builtin_return_address(0));
355#endif
356
357 for (i = 0; i < 16; i++) {
358 irq_set_chip_and_handler(i, &superio_interrupt_type,
359 handle_simple_irq);
360 }
361
362
363
364
365
366
367
368 switch(pcidev->device) {
369 case PCI_DEVICE_ID_NS_87415:
370 local_irq = IDE_IRQ;
371 break;
372 case PCI_DEVICE_ID_NS_87560_LIO:
373 sio_dev.lio_pdev = pcidev;
374 return -1;
375 case PCI_DEVICE_ID_NS_87560_USB:
376 sio_dev.usb_pdev = pcidev;
377 local_irq = USB_IRQ;
378 break;
379 default:
380 local_irq = -1;
381 BUG();
382 break;
383 }
384
385 return local_irq;
386}
387
388static void __init superio_serial_init(void)
389{
390#ifdef CONFIG_SERIAL_8250
391 int retval;
392 struct uart_port serial_port;
393
394 memset(&serial_port, 0, sizeof(serial_port));
395 serial_port.iotype = UPIO_PORT;
396 serial_port.type = PORT_16550A;
397 serial_port.uartclk = 115200*16;
398 serial_port.fifosize = 16;
399
400
401 serial_port.iobase = sio_dev.sp1_base;
402 serial_port.irq = SP1_IRQ;
403 serial_port.line = 0;
404 retval = early_serial_setup(&serial_port);
405 if (retval < 0) {
406 printk(KERN_WARNING PFX "Register Serial #0 failed.\n");
407 return;
408 }
409
410
411 serial_port.iobase = sio_dev.sp2_base;
412 serial_port.irq = SP2_IRQ;
413 serial_port.line = 1;
414 retval = early_serial_setup(&serial_port);
415 if (retval < 0)
416 printk(KERN_WARNING PFX "Register Serial #1 failed.\n");
417#endif
418}
419
420
421static void __init superio_parport_init(void)
422{
423#ifdef CONFIG_PARPORT_PC
424 if (!parport_pc_probe_port(sio_dev.pp_base,
425 0 ,
426 PAR_IRQ,
427 PARPORT_DMA_NONE ,
428 NULL ,
429 0 ))
430
431 printk(KERN_WARNING PFX "Probing parallel port failed.\n");
432#endif
433}
434
435
436static void superio_fixup_pci(struct pci_dev *pdev)
437{
438 u8 prog;
439
440 pdev->class |= 0x5;
441 pci_write_config_byte(pdev, PCI_CLASS_PROG, pdev->class);
442
443 pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog);
444 printk("PCI: Enabled native mode for NS87415 (pif=0x%x)\n", prog);
445}
446DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415, superio_fixup_pci);
447
448
449static int __init
450superio_probe(struct pci_dev *dev, const struct pci_device_id *id)
451{
452 struct superio_device *sio = &sio_dev;
453
454
455
456
457
458
459 DBG_INIT("superio_probe(%s) ven 0x%x dev 0x%x sv 0x%x sd 0x%x class 0x%x\n",
460 pci_name(dev),
461 dev->vendor, dev->device,
462 dev->subsystem_vendor, dev->subsystem_device,
463 dev->class);
464
465 BUG_ON(!sio->suckyio_irq_enabled);
466
467 if (dev->device == PCI_DEVICE_ID_NS_87560_LIO) {
468 superio_parport_init();
469 superio_serial_init();
470
471 return 0;
472 } else if (dev->device == PCI_DEVICE_ID_NS_87415) {
473 DBG_INIT("superio_probe: ignoring IDE 87415\n");
474 } else if (dev->device == PCI_DEVICE_ID_NS_87560_USB) {
475 DBG_INIT("superio_probe: ignoring USB OHCI controller\n");
476 } else {
477 DBG_INIT("superio_probe: WTF? Fire Extinguisher?\n");
478 }
479
480
481 return -ENODEV;
482}
483
484static const struct pci_device_id superio_tbl[] = {
485 { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_LIO) },
486 { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87560_USB) },
487 { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87415) },
488 { 0, }
489};
490
491static struct pci_driver superio_driver = {
492 .name = SUPERIO,
493 .id_table = superio_tbl,
494 .probe = superio_probe,
495};
496
497module_pci_driver(superio_driver);
498