2 * $Id: hd64465_ss.c,v 1.7 2003/07/06 14:42:50 lethal Exp $
4 * Device driver for the PCMCIA controller module of the
5 * Hitachi HD64465 handheld companion chip.
7 * Note that the HD64465 provides a very thin PCMCIA host bridge
8 * layer, requiring a lot of the work of supporting cards to be
9 * performed by the processor. For example: mapping of card
10 * interrupts to processor IRQs is done by IRQ demuxing software;
11 * IO and memory mappings are fixed; setting voltages according
12 * to card Voltage Select pins etc is done in software.
14 * Note also that this driver uses only the simple, fixed,
15 * 16MB, 16-bit wide mappings to PCMCIA spaces defined by the
16 * HD64465. Larger mappings, smaller mappings, or mappings of
17 * different width to the same socket, are all possible only by
18 * involving the SH7750's MMU, which is considered unnecessary here.
19 * The downside is that it may be possible for some drivers to
20 * break because they need or expect 8-bit mappings.
22 * This driver currently supports only the following configuration:
23 * SH7750 CPU, HD64465, TPS2206 voltage control chip.
25 * by Greg Banks <gbanks@pocketpenguins.com>
26 * (c) 2000 PocketPenguins Inc
29 #include <linux/types.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/string.h>
33 #include <linux/kernel.h>
34 #include <linux/ioport.h>
36 #include <linux/vmalloc.h>
37 #include <asm/errno.h>
38 #include <linux/irq.h>
39 #include <linux/interrupt.h>
40 #include <linux/device.h>
43 #include <asm/hd64465/hd64465.h>
44 #include <asm/hd64465/io.h>
46 #include <pcmcia/version.h>
47 #include <pcmcia/cs_types.h>
48 #include <pcmcia/cs.h>
49 #include <pcmcia/cistpl.h>
50 #include <pcmcia/ds.h>
51 #include <pcmcia/ss.h>
52 #include <pcmcia/bulkmem.h>
53 #include "cs_internal.h"
55 #define MODNAME "hd64465_ss"
57 /* #define HD64465_DEBUG 1 */
60 #define DPRINTK(args...) printk(MODNAME ": " args)
62 #define DPRINTK(args...)
65 extern int hd64465_io_debug;
66 extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags);
67 extern void p3_iounmap(void *addr);
69 /*============================================================*/
71 #define HS_IO_MAP_SIZE (64*1024)
73 typedef struct hs_socket_t
82 pccard_io_map io_maps[MAX_IO_WIN];
83 pccard_mem_map mem_maps[MAX_WIN];
84 struct pcmcia_socket socket;
89 #define HS_MAX_SOCKETS 2
90 static hs_socket_t hs_sockets[HS_MAX_SOCKETS];
92 #define hs_in(sp, r) inb((sp)->ctrl_base + (r))
93 #define hs_out(sp, v, r) outb(v, (sp)->ctrl_base + (r))
96 /* translate a boolean value to a bit in a register */
97 #define bool_to_regbit(sp, r, bi, bo) \
99 unsigned short v = hs_in(sp, r); \
107 /* register offsets from HD64465_REG_PCC[01]ISR */
115 /* Mask and values for CSCIER register */
116 #define IER_MASK 0x80
117 #define IER_ON 0x3f /* interrupts on */
118 #define IER_OFF 0x00 /* interrupts off */
120 /*============================================================*/
122 #if HD64465_DEBUG > 10
124 static void cis_hex_dump(const unsigned char *x, int len)
128 for (i=0 ; i<len ; i++)
131 printk("\n%08x", (unsigned)(x + i));
132 printk(" %02x", *(volatile unsigned short*)x);
139 /*============================================================*/
142 * This code helps create the illusion that the IREQ line from
143 * the PC card is mapped to one of the CPU's IRQ lines by the
144 * host bridge hardware (which is how every host bridge *except*
145 * the HD64465 works). In particular, it supports enabling
146 * and disabling the IREQ line by code which knows nothing
147 * about the host bridge (e.g. device drivers, IDE code) using
148 * the request_irq(), free_irq(), probe_irq_on() and probe_irq_off()
149 * functions. Also, it supports sharing the mapped IRQ with
150 * real hardware IRQs from the -IRL0-3 lines.
153 #define HS_NUM_MAPPED_IRQS 16 /* Limitation of the PCMCIA code */
156 /* index is mapped irq number */
158 hw_irq_controller *old_handler;
159 } hs_mapped_irq[HS_NUM_MAPPED_IRQS];
161 static void hs_socket_enable_ireq(hs_socket_t *sp)
163 unsigned short cscier;
165 DPRINTK("hs_socket_enable_ireq(sock=%d)\n", sp->number);
167 cscier = hs_in(sp, CSCIER);
168 cscier &= ~HD64465_PCCCSCIER_PIREQE_MASK;
169 cscier |= HD64465_PCCCSCIER_PIREQE_LEVEL;
170 hs_out(sp, cscier, CSCIER);
173 static void hs_socket_disable_ireq(hs_socket_t *sp)
175 unsigned short cscier;
177 DPRINTK("hs_socket_disable_ireq(sock=%d)\n", sp->number);
179 cscier = hs_in(sp, CSCIER);
180 cscier &= ~HD64465_PCCCSCIER_PIREQE_MASK;
181 hs_out(sp, cscier, CSCIER);
184 static unsigned int hs_startup_irq(unsigned int irq)
186 hs_socket_enable_ireq(hs_mapped_irq[irq].sock);
187 hs_mapped_irq[irq].old_handler->startup(irq);
191 static void hs_shutdown_irq(unsigned int irq)
193 hs_socket_disable_ireq(hs_mapped_irq[irq].sock);
194 hs_mapped_irq[irq].old_handler->shutdown(irq);
197 static void hs_enable_irq(unsigned int irq)
199 hs_socket_enable_ireq(hs_mapped_irq[irq].sock);
200 hs_mapped_irq[irq].old_handler->enable(irq);
203 static void hs_disable_irq(unsigned int irq)
205 hs_socket_disable_ireq(hs_mapped_irq[irq].sock);
206 hs_mapped_irq[irq].old_handler->disable(irq);
209 extern struct hw_interrupt_type no_irq_type;
211 static void hs_mask_and_ack_irq(unsigned int irq)
213 hs_socket_disable_ireq(hs_mapped_irq[irq].sock);
214 /* ack_none() spuriously complains about an unexpected IRQ */
215 if (hs_mapped_irq[irq].old_handler != &no_irq_type)
216 hs_mapped_irq[irq].old_handler->ack(irq);
219 static void hs_end_irq(unsigned int irq)
221 hs_socket_enable_ireq(hs_mapped_irq[irq].sock);
222 hs_mapped_irq[irq].old_handler->end(irq);
226 static struct hw_interrupt_type hd64465_ss_irq_type = {
227 .typename = "PCMCIA-IRQ",
228 .startup = hs_startup_irq,
229 .shutdown = hs_shutdown_irq,
230 .enable = hs_enable_irq,
231 .disable = hs_disable_irq,
232 .ack = hs_mask_and_ack_irq,
237 * This function should only ever be called with interrupts disabled.
239 static void hs_map_irq(hs_socket_t *sp, unsigned int irq)
241 DPRINTK("hs_map_irq(sock=%d irq=%d)\n", sp->number, irq);
243 if (irq >= HS_NUM_MAPPED_IRQS)
246 hs_mapped_irq[irq].sock = sp;
247 /* insert ourselves as the irq controller */
248 hs_mapped_irq[irq].old_handler = irq_desc[irq].handler;
249 irq_desc[irq].handler = &hd64465_ss_irq_type;
254 * This function should only ever be called with interrupts disabled.
256 static void hs_unmap_irq(hs_socket_t *sp, unsigned int irq)
258 DPRINTK("hs_unmap_irq(sock=%d irq=%d)\n", sp->number, irq);
260 if (irq >= HS_NUM_MAPPED_IRQS)
263 /* restore the original irq controller */
264 irq_desc[irq].handler = hs_mapped_irq[irq].old_handler;
267 /*============================================================*/
271 * Set Vpp and Vcc (in tenths of a Volt). Does not
272 * support the hi-Z state.
274 * Note, this assumes the board uses a TPS2206 chip to control
275 * the Vcc and Vpp voltages to the hs_sockets. If your board
276 * uses the MIC2563 (also supported by the HD64465) then you
277 * will have to modify this function.
280 static const u_char hs_tps2206_avcc[3] = { 0x00, 0x04, 0x08 };
281 static const u_char hs_tps2206_bvcc[3] = { 0x00, 0x80, 0x40 };
283 static int hs_set_voltages(hs_socket_t *sp, int Vcc, int Vpp)
287 u_int sock = sp->number;
289 DPRINTK("hs_set_voltage(%d, %d, %d)\n", sock, Vcc, Vpp);
293 case 0: vcci = 0; break;
294 case 33: vcci = 1; break;
295 case 50: vcci = 2; break;
299 /* Note: Vpp = 120 not supported -- Greg Banks */
300 if (Vpp != 0 && Vpp != Vcc)
303 /* The PSR register holds 8 of the 9 bits which control
304 * the TPS2206 via its serial interface.
306 psr = inw(HD64465_REG_PCCPSR);
311 psr |= hs_tps2206_avcc[vcci];
312 psr |= (Vpp == 0 ? 0x00 : 0x02);
316 psr |= hs_tps2206_bvcc[vcci];
317 psr |= (Vpp == 0 ? 0x00 : 0x20);
320 outw(psr, HD64465_REG_PCCPSR);
326 /*============================================================*/
329 * Drive the RESET line to the card.
331 static void hs_reset_socket(hs_socket_t *sp, int on)
337 v |= HD64465_PCCGCR_PCCR;
339 v &= ~HD64465_PCCGCR_PCCR;
343 /*============================================================*/
345 static int hs_init(struct pcmcia_socket *s)
347 hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
349 DPRINTK("hs_init(%d)\n", sp->number);
354 /*============================================================*/
357 static int hs_get_status(struct pcmcia_socket *s, u_int *value)
359 hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
364 isr = hs_in(sp, ISR);
366 /* Card is seated and powered when *both* CD pins are low */
367 if ((isr & HD64465_PCCISR_PCD_MASK) == 0)
369 status |= SS_DETECT; /* card present */
371 switch (isr & HD64465_PCCISR_PBVD_MASK)
373 case HD64465_PCCISR_PBVD_BATGOOD:
375 case HD64465_PCCISR_PBVD_BATWARN:
376 status |= SS_BATWARN;
379 status |= SS_BATDEAD;
383 if (isr & HD64465_PCCISR_PREADY)
386 if (isr & HD64465_PCCISR_PMWP)
389 /* Voltage Select pins interpreted as per Table 4-5 of the std.
390 * Assuming we have the TPS2206, the socket is a "Low Voltage
391 * key, 3.3V and 5V available, no X.XV available".
393 switch (isr & (HD64465_PCCISR_PVS2|HD64465_PCCISR_PVS1))
395 case HD64465_PCCISR_PVS1:
396 printk(KERN_NOTICE MODNAME ": cannot handle X.XV card, ignored\n");
400 case HD64465_PCCISR_PVS2:
404 case HD64465_PCCISR_PVS2|HD64465_PCCISR_PVS1:
409 /* TODO: SS_POWERON */
410 /* TODO: SS_STSCHG */
413 DPRINTK("hs_get_status(%d) = %x\n", sock, status);
419 /*============================================================*/
421 static int hs_get_socket(struct pcmcia_socket *s, socket_state_t *state)
423 hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
425 DPRINTK("hs_get_socket(%d)\n", sock);
431 /*============================================================*/
433 static int hs_set_socket(struct pcmcia_socket *s, socket_state_t *state)
435 hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
438 unsigned short cscier;
440 DPRINTK("hs_set_socket(sock=%d, flags=%x, csc_mask=%x, Vcc=%d, Vpp=%d, io_irq=%d)\n",
441 sock, state->flags, state->csc_mask, state->Vcc, state->Vpp, state->io_irq);
443 local_irq_save(flags); /* Don't want interrupts happening here */
445 if (state->Vpp != sp->state.Vpp ||
446 state->Vcc != sp->state.Vcc) {
447 if (!hs_set_voltages(sp, state->Vcc, state->Vpp)) {
448 local_irq_restore(flags);
453 /* hd64465_io_debug = 1; */
455 * Handle changes in the Card Status Change mask,
456 * by propagating to the CSCR register
458 changed = sp->state.csc_mask ^ state->csc_mask;
459 cscier = hs_in(sp, CSCIER);
461 if (changed & SS_DETECT) {
462 if (state->csc_mask & SS_DETECT)
463 cscier |= HD64465_PCCCSCIER_PCDE;
465 cscier &= ~HD64465_PCCCSCIER_PCDE;
468 if (changed & SS_READY) {
469 if (state->csc_mask & SS_READY)
470 cscier |= HD64465_PCCCSCIER_PRE;
472 cscier &= ~HD64465_PCCCSCIER_PRE;
475 if (changed & SS_BATDEAD) {
476 if (state->csc_mask & SS_BATDEAD)
477 cscier |= HD64465_PCCCSCIER_PBDE;
479 cscier &= ~HD64465_PCCCSCIER_PBDE;
482 if (changed & SS_BATWARN) {
483 if (state->csc_mask & SS_BATWARN)
484 cscier |= HD64465_PCCCSCIER_PBWE;
486 cscier &= ~HD64465_PCCCSCIER_PBWE;
489 if (changed & SS_STSCHG) {
490 if (state->csc_mask & SS_STSCHG)
491 cscier |= HD64465_PCCCSCIER_PSCE;
493 cscier &= ~HD64465_PCCCSCIER_PSCE;
496 hs_out(sp, cscier, CSCIER);
498 if (sp->state.io_irq && !state->io_irq)
499 hs_unmap_irq(sp, sp->state.io_irq);
500 else if (!sp->state.io_irq && state->io_irq)
501 hs_map_irq(sp, state->io_irq);
505 * Handle changes in the flags field,
506 * by propagating to config registers.
508 changed = sp->state.flags ^ state->flags;
510 if (changed & SS_IOCARD) {
511 DPRINTK("card type: %s\n",
512 (state->flags & SS_IOCARD ? "i/o" : "memory" ));
513 bool_to_regbit(sp, GCR, HD64465_PCCGCR_PCCT,
514 state->flags & SS_IOCARD);
517 if (changed & SS_RESET) {
518 DPRINTK("%s reset card\n",
519 (state->flags & SS_RESET ? "start" : "stop"));
520 bool_to_regbit(sp, GCR, HD64465_PCCGCR_PCCR,
521 state->flags & SS_RESET);
524 if (changed & SS_OUTPUT_ENA) {
525 DPRINTK("%sabling card output\n",
526 (state->flags & SS_OUTPUT_ENA ? "en" : "dis"));
527 bool_to_regbit(sp, GCR, HD64465_PCCGCR_PDRV,
528 state->flags & SS_OUTPUT_ENA);
531 /* TODO: SS_SPKR_ENA */
533 /* hd64465_io_debug = 0; */
536 local_irq_restore(flags);
538 #if HD64465_DEBUG > 10
539 if (state->flags & SS_OUTPUT_ENA)
540 cis_hex_dump((const unsigned char*)sp->mem_base, 0x100);
545 /*============================================================*/
547 static int hs_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
549 hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
551 int sock = sp->number;
552 struct pccard_io_map *sio;
555 DPRINTK("hs_set_io_map(sock=%d, map=%d, flags=0x%x, speed=%dns, start=%#lx, stop=%#lx)\n",
556 sock, map, io->flags, io->speed, io->start, io->stop);
557 if (map >= MAX_IO_WIN)
559 sio = &sp->io_maps[map];
561 /* check for null changes */
562 if (io->flags == sio->flags &&
563 io->start == sio->start &&
564 io->stop == sio->stop)
567 if (io->flags & MAP_AUTOSZ)
568 prot = PAGE_KERNEL_PCC(sock, _PAGE_PCC_IODYN);
569 else if (io->flags & MAP_16BIT)
570 prot = PAGE_KERNEL_PCC(sock, _PAGE_PCC_IO16);
572 prot = PAGE_KERNEL_PCC(sock, _PAGE_PCC_IO8);
574 /* TODO: handle MAP_USE_WAIT */
575 if (io->flags & MAP_USE_WAIT)
576 printk(KERN_INFO MODNAME ": MAP_USE_WAIT unimplemented\n");
577 /* TODO: handle MAP_PREFETCH */
578 if (io->flags & MAP_PREFETCH)
579 printk(KERN_INFO MODNAME ": MAP_PREFETCH unimplemented\n");
580 /* TODO: handle MAP_WRPROT */
581 if (io->flags & MAP_WRPROT)
582 printk(KERN_INFO MODNAME ": MAP_WRPROT unimplemented\n");
583 /* TODO: handle MAP_0WS */
584 if (io->flags & MAP_0WS)
585 printk(KERN_INFO MODNAME ": MAP_0WS unimplemented\n");
587 if (io->flags & MAP_ACTIVE) {
588 unsigned long pstart, psize, paddrbase;
590 paddrbase = virt_to_phys((void*)(sp->mem_base + 2 * HD64465_PCC_WINDOW));
591 pstart = io->start & PAGE_MASK;
592 psize = ((io->stop + PAGE_SIZE) & PAGE_MASK) - pstart;
595 * Change PTEs in only that portion of the mapping requested
596 * by the caller. This means that most of the time, most of
597 * the PTEs in the io_vma will be unmapped and only the bottom
598 * page will be mapped. But the code allows for weird cards
599 * that might want IO ports > 4K.
601 sp->io_base = p3_ioremap(paddrbase + pstart, psize, pgprot_val(prot));
604 * Change the mapping used by inb() outb() etc
606 hd64465_port_map(io->start,
607 io->stop - io->start + 1,
608 (unsigned long)sp->io_base + io->start, 0);
610 hd64465_port_unmap(sio->start, sio->stop - sio->start + 1);
611 p3_iounmap(sp->io_base);
618 /*============================================================*/
620 static int hs_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem)
622 hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
623 struct pccard_mem_map *smem;
628 DPRINTK("hs_set_mem_map(sock=%d, map=%d, flags=0x%x, card_start=0x%08x)\n",
629 sock, map, mem->flags, mem->card_start);
634 smem = &sp->mem_maps[map];
636 paddr = sp->mem_base; /* base of Attribute mapping */
637 if (!(mem->flags & MAP_ATTRIB))
638 paddr += HD64465_PCC_WINDOW; /* base of Common mapping */
639 paddr += mem->card_start;
641 /* Because we specified SS_CAP_STATIC_MAP, we are obliged
642 * at this time to report the system address corresponding
643 * to the card address requested. This is how Socket Services
644 * queries our fixed mapping. I wish this fact had been
645 * documented - Greg Banks.
647 mem->static_start = paddr;
654 /* TODO: do we need to use the MMU to access Common memory ??? */
656 /*============================================================*/
659 * This function is registered with the HD64465 glue code to do a
660 * secondary demux step on the PCMCIA interrupts. It handles
661 * mapping the IREQ request from the card to a standard Linux
662 * IRQ, as requested by SocketServices.
664 static int hs_irq_demux(int irq, void *dev)
666 hs_socket_t *sp = (hs_socket_t *)dev;
669 DPRINTK("hs_irq_demux(irq=%d)\n", irq);
671 if (sp->state.io_irq &&
672 (cscr = hs_in(sp, CSCR)) & HD64465_PCCCSCR_PIREQ) {
673 cscr &= ~HD64465_PCCCSCR_PIREQ;
674 hs_out(sp, cscr, CSCR);
675 return sp->state.io_irq;
681 /*============================================================*/
684 * Interrupt handling routine.
687 static irqreturn_t hs_interrupt(int irq, void *dev, struct pt_regs *regs)
689 hs_socket_t *sp = (hs_socket_t *)dev;
694 cscr = hs_in(sp, CSCR);
696 DPRINTK("hs_interrupt, cscr=%04x\n", cscr);
698 /* check for bus-related changes to be reported to Socket Services */
699 if (cscr & HD64465_PCCCSCR_PCDC) {
700 /* double-check for a 16-bit card, as we don't support CardBus */
701 if ((hs_in(sp, ISR) & HD64465_PCCISR_PCD_MASK) != 0) {
702 printk(KERN_NOTICE MODNAME
703 ": socket %d, card not a supported card type or not inserted correctly\n",
705 /* Don't do the rest unless a card is present */
706 cscr &= ~(HD64465_PCCCSCR_PCDC|
710 HD64465_PCCCSCR_PSC);
712 cscr &= ~HD64465_PCCCSCR_PCDC;
713 events |= SS_DETECT; /* card insertion or removal */
716 if (cscr & HD64465_PCCCSCR_PRC) {
717 cscr &= ~HD64465_PCCCSCR_PRC;
718 events |= SS_READY; /* ready signal changed */
720 if (cscr & HD64465_PCCCSCR_PBW) {
721 cscr &= ~HD64465_PCCCSCR_PSC;
722 events |= SS_BATWARN; /* battery warning */
724 if (cscr & HD64465_PCCCSCR_PBD) {
725 cscr &= ~HD64465_PCCCSCR_PSC;
726 events |= SS_BATDEAD; /* battery dead */
728 if (cscr & HD64465_PCCCSCR_PSC) {
729 cscr &= ~HD64465_PCCCSCR_PSC;
730 events |= SS_STSCHG; /* STSCHG (status changed) signal */
733 if (cscr & HD64465_PCCCSCR_PIREQ) {
734 cscr &= ~HD64465_PCCCSCR_PIREQ;
736 /* This should have been dealt with during irq demux */
737 printk(KERN_NOTICE MODNAME ": unexpected IREQ from card\n");
740 hs_out(sp, cscr, CSCR);
743 pcmcia_parse_events(&sp->socket, events);
748 /*============================================================*/
750 static struct pccard_operations hs_operations = {
752 .get_status = hs_get_status,
753 .get_socket = hs_get_socket,
754 .set_socket = hs_set_socket,
755 .set_io_map = hs_set_io_map,
756 .set_mem_map = hs_set_mem_map,
759 static int hs_init_socket(hs_socket_t *sp, int irq, unsigned long mem_base,
760 unsigned int ctrl_base)
765 memset(sp, 0, sizeof(*sp));
767 sp->mem_base = mem_base;
768 sp->mem_length = 4*HD64465_PCC_WINDOW; /* 16MB */
769 sp->ctrl_base = ctrl_base;
771 for (i=0 ; i<MAX_IO_WIN ; i++)
772 sp->io_maps[i].map = i;
773 for (i=0 ; i<MAX_WIN ; i++)
774 sp->mem_maps[i].map = i;
776 hd64465_register_irq_demux(sp->irq, hs_irq_demux, sp);
778 if ((err = request_irq(sp->irq, hs_interrupt, SA_INTERRUPT, MODNAME, sp)) < 0)
780 if (request_mem_region(sp->mem_base, sp->mem_length, MODNAME) == 0) {
786 /* According to section 3.2 of the PCMCIA standard, low-voltage
787 * capable cards must implement cold insertion, i.e. Vpp and
788 * Vcc set to 0 before card is inserted.
790 /*hs_set_voltages(sp, 0, 0);*/
792 /* hi-Z the outputs to the card and set 16MB map mode */
794 v &= ~HD64465_PCCGCR_PCCT; /* memory-only card */
798 v |= HD64465_PCCGCR_PDRV; /* enable outputs to card */
802 v |= HD64465_PCCGCR_PMMOD; /* 16MB mapping mode */
806 /* lowest 16MB of Common */
807 v &= ~(HD64465_PCCGCR_PPA25|HD64465_PCCGCR_PPA24);
810 hs_reset_socket(sp, 1);
812 printk(KERN_INFO "HD64465 PCMCIA bridge socket %d at 0x%08lx irq %d\n",
813 i, sp->mem_base, sp->irq);
818 static void hs_exit_socket(hs_socket_t *sp)
820 unsigned short cscier, gcr;
823 local_irq_save(flags);
825 /* turn off interrupts in hardware */
826 cscier = hs_in(sp, CSCIER);
827 cscier = (cscier & IER_MASK) | IER_OFF;
828 hs_out(sp, cscier, CSCIER);
830 /* hi-Z the outputs to the card */
831 gcr = hs_in(sp, GCR);
832 gcr &= HD64465_PCCGCR_PDRV;
833 hs_out(sp, gcr, GCR);
835 /* power the card down */
836 hs_set_voltages(sp, 0, 0);
838 if (sp->mem_base != 0)
839 release_mem_region(sp->mem_base, sp->mem_length);
841 free_irq(sp->irq, hs_interrupt);
842 hd64465_unregister_irq_demux(sp->irq);
845 local_irq_restore(flags);
848 static int hd64465_suspend(struct device *dev, pm_message_t state, u32 level)
851 if (level == SUSPEND_SAVE_STATE)
852 ret = pcmcia_socket_dev_suspend(dev, state);
856 static int hd64465_resume(struct device *dev, u32 level)
859 if (level == RESUME_RESTORE_STATE)
860 ret = pcmcia_socket_dev_resume(dev);
864 static struct device_driver hd64465_driver = {
865 .name = "hd64465-pcmcia",
866 .bus = &platform_bus_type,
867 .suspend = hd64465_suspend,
868 .resume = hd64465_resume,
871 static struct platform_device hd64465_device = {
872 .name = "hd64465-pcmcia",
876 static int __init init_hs(void)
881 /* hd64465_io_debug = 1; */
882 if (driver_register(&hd64465_driver))
885 /* Wake both sockets out of STANDBY mode */
886 /* TODO: wait 15ms */
887 v = inw(HD64465_REG_SMSCR);
888 v &= ~(HD64465_SMSCR_PC0ST|HD64465_SMSCR_PC1ST);
889 outw(v, HD64465_REG_SMSCR);
891 /* keep power controller out of shutdown mode */
892 v = inb(HD64465_REG_PCC0SCR);
893 v |= HD64465_PCCSCR_SHDN;
894 outb(v, HD64465_REG_PCC0SCR);
896 /* use serial (TPS2206) power controller */
897 v = inb(HD64465_REG_PCC0CSCR);
898 v |= HD64465_PCCCSCR_PSWSEL;
899 outb(v, HD64465_REG_PCC0CSCR);
902 * Setup hs_sockets[] structures and request system resources.
903 * TODO: on memory allocation failure, power down the socket
906 for (i=0; i<HS_MAX_SOCKETS; i++) {
907 hs_set_voltages(&hs_sockets[i], 0, 0);
909 hs_sockets[i].socket.features |= SS_CAP_PCCARD | SS_CAP_STATIC_MAP; /* mappings are fixed in host memory */
910 hs_sockets[i].socket.resource_ops = &pccard_static_ops;
911 hs_sockets[i].socket.irq_mask = 0xffde;/*0xffff*/ /* IRQs mapped in s/w so can do any, really */
912 hs_sockets[i].socket.map_size = HD64465_PCC_WINDOW; /* 16MB fixed window size */
914 hs_sockets[i].socket.owner = THIS_MODULE;
915 hs_sockets[i].socket.ss_entry = &hs_operations;
918 i = hs_init_socket(&hs_sockets[0],
921 HD64465_REG_PCC0ISR);
923 unregister_driver(&hd64465_driver);
926 i = hs_init_socket(&hs_sockets[1],
929 HD64465_REG_PCC1ISR);
931 unregister_driver(&hd64465_driver);
935 /* hd64465_io_debug = 0; */
937 platform_device_register(&hd64465_device);
939 for (i=0; i<HS_MAX_SOCKETS; i++) {
941 hs_sockets[i].socket.dev.dev = &hd64465_device.dev;
942 hs_sockets[i].number = i;
943 ret = pcmcia_register_socket(&hs_sockets[i].socket);
945 pcmcia_unregister_socket(&hs_sockets[0].socket);
951 static void __exit exit_hs(void)
955 for (i=0 ; i<HS_MAX_SOCKETS ; i++) {
956 pcmcia_unregister_socket(&hs_sockets[i].socket);
957 hs_exit_socket(&hs_sockets[i]);
960 platform_device_unregister(&hd64465_device);
961 unregister_driver(&hd64465_driver);
964 module_init(init_hs);
965 module_exit(exit_hs);
967 /*============================================================*/