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path: root/drivers/pcmcia/hd64465_ss.c
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-rw-r--r--drivers/pcmcia/hd64465_ss.c939
1 files changed, 0 insertions, 939 deletions
diff --git a/drivers/pcmcia/hd64465_ss.c b/drivers/pcmcia/hd64465_ss.c
deleted file mode 100644
index 9ef69cdb3183..000000000000
--- a/drivers/pcmcia/hd64465_ss.c
+++ /dev/null
@@ -1,939 +0,0 @@
-/*
- * Device driver for the PCMCIA controller module of the
- * Hitachi HD64465 handheld companion chip.
- *
- * Note that the HD64465 provides a very thin PCMCIA host bridge
- * layer, requiring a lot of the work of supporting cards to be
- * performed by the processor. For example: mapping of card
- * interrupts to processor IRQs is done by IRQ demuxing software;
- * IO and memory mappings are fixed; setting voltages according
- * to card Voltage Select pins etc is done in software.
- *
- * Note also that this driver uses only the simple, fixed,
- * 16MB, 16-bit wide mappings to PCMCIA spaces defined by the
- * HD64465. Larger mappings, smaller mappings, or mappings of
- * different width to the same socket, are all possible only by
- * involving the SH7750's MMU, which is considered unnecessary here.
- * The downside is that it may be possible for some drivers to
- * break because they need or expect 8-bit mappings.
- *
- * This driver currently supports only the following configuration:
- * SH7750 CPU, HD64465, TPS2206 voltage control chip.
- *
- * by Greg Banks <gbanks@pocketpenguins.com>
- * (c) 2000 PocketPenguins Inc
- */
-
-#include <linux/types.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <asm/errno.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-
-#include <asm/io.h>
-#include <asm/hd64465/hd64465.h>
-#include <asm/hd64465/io.h>
-
-#include <pcmcia/cs_types.h>
-#include <pcmcia/cs.h>
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ds.h>
-#include <pcmcia/ss.h>
-
-#define MODNAME "hd64465_ss"
-
-/* #define HD64465_DEBUG 1 */
-
-#if HD64465_DEBUG
-#define DPRINTK(args...) printk(MODNAME ": " args)
-#else
-#define DPRINTK(args...)
-#endif
-
-extern int hd64465_io_debug;
-extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags);
-extern void p3_iounmap(void *addr);
-
-/*============================================================*/
-
-#define HS_IO_MAP_SIZE (64*1024)
-
-typedef struct hs_socket_t
-{
- unsigned int number;
- u_int irq;
- u_long mem_base;
- void *io_base;
- u_long mem_length;
- u_int ctrl_base;
- socket_state_t state;
- pccard_io_map io_maps[MAX_IO_WIN];
- pccard_mem_map mem_maps[MAX_WIN];
- struct pcmcia_socket socket;
-} hs_socket_t;
-
-
-
-#define HS_MAX_SOCKETS 2
-static hs_socket_t hs_sockets[HS_MAX_SOCKETS];
-
-#define hs_in(sp, r) inb((sp)->ctrl_base + (r))
-#define hs_out(sp, v, r) outb(v, (sp)->ctrl_base + (r))
-
-
-/* translate a boolean value to a bit in a register */
-#define bool_to_regbit(sp, r, bi, bo) \
- do { \
- unsigned short v = hs_in(sp, r); \
- if (bo) \
- v |= (bi); \
- else \
- v &= ~(bi); \
- hs_out(sp, v, r); \
- } while(0)
-
-/* register offsets from HD64465_REG_PCC[01]ISR */
-#define ISR 0x0
-#define GCR 0x2
-#define CSCR 0x4
-#define CSCIER 0x6
-#define SCR 0x8
-
-
-/* Mask and values for CSCIER register */
-#define IER_MASK 0x80
-#define IER_ON 0x3f /* interrupts on */
-#define IER_OFF 0x00 /* interrupts off */
-
-/*============================================================*/
-
-#if HD64465_DEBUG > 10
-
-static void cis_hex_dump(const unsigned char *x, int len)
-{
- int i;
-
- for (i=0 ; i<len ; i++)
- {
- if (!(i & 0xf))
- printk("\n%08x", (unsigned)(x + i));
- printk(" %02x", *(volatile unsigned short*)x);
- x += 2;
- }
- printk("\n");
-}
-
-#endif
-/*============================================================*/
-
-/*
- * This code helps create the illusion that the IREQ line from
- * the PC card is mapped to one of the CPU's IRQ lines by the
- * host bridge hardware (which is how every host bridge *except*
- * the HD64465 works). In particular, it supports enabling
- * and disabling the IREQ line by code which knows nothing
- * about the host bridge (e.g. device drivers, IDE code) using
- * the request_irq(), free_irq(), probe_irq_on() and probe_irq_off()
- * functions. Also, it supports sharing the mapped IRQ with
- * real hardware IRQs from the -IRL0-3 lines.
- */
-
-#define HS_NUM_MAPPED_IRQS 16 /* Limitation of the PCMCIA code */
-static struct
-{
- /* index is mapped irq number */
- hs_socket_t *sock;
- hw_irq_controller *old_handler;
-} hs_mapped_irq[HS_NUM_MAPPED_IRQS];
-
-static void hs_socket_enable_ireq(hs_socket_t *sp)
-{
- unsigned short cscier;
-
- DPRINTK("hs_socket_enable_ireq(sock=%d)\n", sp->number);
-
- cscier = hs_in(sp, CSCIER);
- cscier &= ~HD64465_PCCCSCIER_PIREQE_MASK;
- cscier |= HD64465_PCCCSCIER_PIREQE_LEVEL;
- hs_out(sp, cscier, CSCIER);
-}
-
-static void hs_socket_disable_ireq(hs_socket_t *sp)
-{
- unsigned short cscier;
-
- DPRINTK("hs_socket_disable_ireq(sock=%d)\n", sp->number);
-
- cscier = hs_in(sp, CSCIER);
- cscier &= ~HD64465_PCCCSCIER_PIREQE_MASK;
- hs_out(sp, cscier, CSCIER);
-}
-
-static unsigned int hs_startup_irq(unsigned int irq)
-{
- hs_socket_enable_ireq(hs_mapped_irq[irq].sock);
- hs_mapped_irq[irq].old_handler->startup(irq);
- return 0;
-}
-
-static void hs_shutdown_irq(unsigned int irq)
-{
- hs_socket_disable_ireq(hs_mapped_irq[irq].sock);
- hs_mapped_irq[irq].old_handler->shutdown(irq);
-}
-
-static void hs_enable_irq(unsigned int irq)
-{
- hs_socket_enable_ireq(hs_mapped_irq[irq].sock);
- hs_mapped_irq[irq].old_handler->enable(irq);
-}
-
-static void hs_disable_irq(unsigned int irq)
-{
- hs_socket_disable_ireq(hs_mapped_irq[irq].sock);
- hs_mapped_irq[irq].old_handler->disable(irq);
-}
-
-extern struct hw_interrupt_type no_irq_type;
-
-static void hs_mask_and_ack_irq(unsigned int irq)
-{
- hs_socket_disable_ireq(hs_mapped_irq[irq].sock);
- /* ack_none() spuriously complains about an unexpected IRQ */
- if (hs_mapped_irq[irq].old_handler != &no_irq_type)
- hs_mapped_irq[irq].old_handler->ack(irq);
-}
-
-static void hs_end_irq(unsigned int irq)
-{
- hs_socket_enable_ireq(hs_mapped_irq[irq].sock);
- hs_mapped_irq[irq].old_handler->end(irq);
-}
-
-
-static struct hw_interrupt_type hd64465_ss_irq_type = {
- .typename = "PCMCIA-IRQ",
- .startup = hs_startup_irq,
- .shutdown = hs_shutdown_irq,
- .enable = hs_enable_irq,
- .disable = hs_disable_irq,
- .ack = hs_mask_and_ack_irq,
- .end = hs_end_irq
-};
-
-/*
- * This function should only ever be called with interrupts disabled.
- */
-static void hs_map_irq(hs_socket_t *sp, unsigned int irq)
-{
- struct irq_desc *desc;
-
- DPRINTK("hs_map_irq(sock=%d irq=%d)\n", sp->number, irq);
-
- if (irq >= HS_NUM_MAPPED_IRQS)
- return;
-
- desc = irq_to_desc(irq);
- hs_mapped_irq[irq].sock = sp;
- /* insert ourselves as the irq controller */
- hs_mapped_irq[irq].old_handler = desc->chip;
- desc->chip = &hd64465_ss_irq_type;
-}
-
-
-/*
- * This function should only ever be called with interrupts disabled.
- */
-static void hs_unmap_irq(hs_socket_t *sp, unsigned int irq)
-{
- struct irq_desc *desc;
-
- DPRINTK("hs_unmap_irq(sock=%d irq=%d)\n", sp->number, irq);
-
- if (irq >= HS_NUM_MAPPED_IRQS)
- return;
-
- desc = irq_to_desc(irq);
- /* restore the original irq controller */
- desc->chip = hs_mapped_irq[irq].old_handler;
-}
-
-/*============================================================*/
-
-
-/*
- * Set Vpp and Vcc (in tenths of a Volt). Does not
- * support the hi-Z state.
- *
- * Note, this assumes the board uses a TPS2206 chip to control
- * the Vcc and Vpp voltages to the hs_sockets. If your board
- * uses the MIC2563 (also supported by the HD64465) then you
- * will have to modify this function.
- */
- /* 0V 3.3V 5.5V */
-static const u_char hs_tps2206_avcc[3] = { 0x00, 0x04, 0x08 };
-static const u_char hs_tps2206_bvcc[3] = { 0x00, 0x80, 0x40 };
-
-static int hs_set_voltages(hs_socket_t *sp, int Vcc, int Vpp)
-{
- u_int psr;
- u_int vcci = 0;
- u_int sock = sp->number;
-
- DPRINTK("hs_set_voltage(%d, %d, %d)\n", sock, Vcc, Vpp);
-
- switch (Vcc)
- {
- case 0: vcci = 0; break;
- case 33: vcci = 1; break;
- case 50: vcci = 2; break;
- default: return 0;
- }
-
- /* Note: Vpp = 120 not supported -- Greg Banks */
- if (Vpp != 0 && Vpp != Vcc)
- return 0;
-
- /* The PSR register holds 8 of the 9 bits which control
- * the TPS2206 via its serial interface.
- */
- psr = inw(HD64465_REG_PCCPSR);
- switch (sock)
- {
- case 0:
- psr &= 0x0f;
- psr |= hs_tps2206_avcc[vcci];
- psr |= (Vpp == 0 ? 0x00 : 0x02);
- break;
- case 1:
- psr &= 0xf0;
- psr |= hs_tps2206_bvcc[vcci];
- psr |= (Vpp == 0 ? 0x00 : 0x20);
- break;
- };
- outw(psr, HD64465_REG_PCCPSR);
-
- return 1;
-}
-
-
-/*============================================================*/
-
-/*
- * Drive the RESET line to the card.
- */
-static void hs_reset_socket(hs_socket_t *sp, int on)
-{
- unsigned short v;
-
- v = hs_in(sp, GCR);
- if (on)
- v |= HD64465_PCCGCR_PCCR;
- else
- v &= ~HD64465_PCCGCR_PCCR;
- hs_out(sp, v, GCR);
-}
-
-/*============================================================*/
-
-static int hs_init(struct pcmcia_socket *s)
-{
- hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
-
- DPRINTK("hs_init(%d)\n", sp->number);
-
- return 0;
-}
-
-/*============================================================*/
-
-
-static int hs_get_status(struct pcmcia_socket *s, u_int *value)
-{
- hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
- unsigned int isr;
- u_int status = 0;
-
-
- isr = hs_in(sp, ISR);
-
- /* Card is seated and powered when *both* CD pins are low */
- if ((isr & HD64465_PCCISR_PCD_MASK) == 0)
- {
- status |= SS_DETECT; /* card present */
-
- switch (isr & HD64465_PCCISR_PBVD_MASK)
- {
- case HD64465_PCCISR_PBVD_BATGOOD:
- break;
- case HD64465_PCCISR_PBVD_BATWARN:
- status |= SS_BATWARN;
- break;
- default:
- status |= SS_BATDEAD;
- break;
- }
-
- if (isr & HD64465_PCCISR_PREADY)
- status |= SS_READY;
-
- if (isr & HD64465_PCCISR_PMWP)
- status |= SS_WRPROT;
-
- /* Voltage Select pins interpreted as per Table 4-5 of the std.
- * Assuming we have the TPS2206, the socket is a "Low Voltage
- * key, 3.3V and 5V available, no X.XV available".
- */
- switch (isr & (HD64465_PCCISR_PVS2|HD64465_PCCISR_PVS1))
- {
- case HD64465_PCCISR_PVS1:
- printk(KERN_NOTICE MODNAME ": cannot handle X.XV card, ignored\n");
- status = 0;
- break;
- case 0:
- case HD64465_PCCISR_PVS2:
- /* 3.3V */
- status |= SS_3VCARD;
- break;
- case HD64465_PCCISR_PVS2|HD64465_PCCISR_PVS1:
- /* 5V */
- break;
- }
-
- /* TODO: SS_POWERON */
- /* TODO: SS_STSCHG */
- }
-
- DPRINTK("hs_get_status(%d) = %x\n", sock, status);
-
- *value = status;
- return 0;
-}
-
-/*============================================================*/
-
-static int hs_set_socket(struct pcmcia_socket *s, socket_state_t *state)
-{
- hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
- u_long flags;
- u_int changed;
- unsigned short cscier;
-
- DPRINTK("hs_set_socket(sock=%d, flags=%x, csc_mask=%x, Vcc=%d, Vpp=%d, io_irq=%d)\n",
- sock, state->flags, state->csc_mask, state->Vcc, state->Vpp, state->io_irq);
-
- local_irq_save(flags); /* Don't want interrupts happening here */
-
- if (state->Vpp != sp->state.Vpp ||
- state->Vcc != sp->state.Vcc) {
- if (!hs_set_voltages(sp, state->Vcc, state->Vpp)) {
- local_irq_restore(flags);
- return -EINVAL;
- }
- }
-
-/* hd64465_io_debug = 1; */
- /*
- * Handle changes in the Card Status Change mask,
- * by propagating to the CSCR register
- */
- changed = sp->state.csc_mask ^ state->csc_mask;
- cscier = hs_in(sp, CSCIER);
-
- if (changed & SS_DETECT) {
- if (state->csc_mask & SS_DETECT)
- cscier |= HD64465_PCCCSCIER_PCDE;
- else
- cscier &= ~HD64465_PCCCSCIER_PCDE;
- }
-
- if (changed & SS_READY) {
- if (state->csc_mask & SS_READY)
- cscier |= HD64465_PCCCSCIER_PRE;
- else
- cscier &= ~HD64465_PCCCSCIER_PRE;
- }
-
- if (changed & SS_BATDEAD) {
- if (state->csc_mask & SS_BATDEAD)
- cscier |= HD64465_PCCCSCIER_PBDE;
- else
- cscier &= ~HD64465_PCCCSCIER_PBDE;
- }
-
- if (changed & SS_BATWARN) {
- if (state->csc_mask & SS_BATWARN)
- cscier |= HD64465_PCCCSCIER_PBWE;
- else
- cscier &= ~HD64465_PCCCSCIER_PBWE;
- }
-
- if (changed & SS_STSCHG) {
- if (state->csc_mask & SS_STSCHG)
- cscier |= HD64465_PCCCSCIER_PSCE;
- else
- cscier &= ~HD64465_PCCCSCIER_PSCE;
- }
-
- hs_out(sp, cscier, CSCIER);
-
- if (sp->state.io_irq && !state->io_irq)
- hs_unmap_irq(sp, sp->state.io_irq);
- else if (!sp->state.io_irq && state->io_irq)
- hs_map_irq(sp, state->io_irq);
-
-
- /*
- * Handle changes in the flags field,
- * by propagating to config registers.
- */
- changed = sp->state.flags ^ state->flags;
-
- if (changed & SS_IOCARD) {
- DPRINTK("card type: %s\n",
- (state->flags & SS_IOCARD ? "i/o" : "memory" ));
- bool_to_regbit(sp, GCR, HD64465_PCCGCR_PCCT,
- state->flags & SS_IOCARD);
- }
-
- if (changed & SS_RESET) {
- DPRINTK("%s reset card\n",
- (state->flags & SS_RESET ? "start" : "stop"));
- bool_to_regbit(sp, GCR, HD64465_PCCGCR_PCCR,
- state->flags & SS_RESET);
- }
-
- if (changed & SS_OUTPUT_ENA) {
- DPRINTK("%sabling card output\n",
- (state->flags & SS_OUTPUT_ENA ? "en" : "dis"));
- bool_to_regbit(sp, GCR, HD64465_PCCGCR_PDRV,
- state->flags & SS_OUTPUT_ENA);
- }
-
- /* TODO: SS_SPKR_ENA */
-
-/* hd64465_io_debug = 0; */
- sp->state = *state;
-
- local_irq_restore(flags);
-
-#if HD64465_DEBUG > 10
- if (state->flags & SS_OUTPUT_ENA)
- cis_hex_dump((const unsigned char*)sp->mem_base, 0x100);
-#endif
- return 0;
-}
-
-/*============================================================*/
-
-static int hs_set_io_map(struct pcmcia_socket *s, struct pccard_io_map *io)
-{
- hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
- int map = io->map;
- int sock = sp->number;
- struct pccard_io_map *sio;
- pgprot_t prot;
-
- DPRINTK("hs_set_io_map(sock=%d, map=%d, flags=0x%x, speed=%dns, start=%#lx, stop=%#lx)\n",
- sock, map, io->flags, io->speed, io->start, io->stop);
- if (map >= MAX_IO_WIN)
- return -EINVAL;
- sio = &sp->io_maps[map];
-
- /* check for null changes */
- if (io->flags == sio->flags &&
- io->start == sio->start &&
- io->stop == sio->stop)
- return 0;
-
- if (io->flags & MAP_AUTOSZ)
- prot = PAGE_KERNEL_PCC(sock, _PAGE_PCC_IODYN);
- else if (io->flags & MAP_16BIT)
- prot = PAGE_KERNEL_PCC(sock, _PAGE_PCC_IO16);
- else
- prot = PAGE_KERNEL_PCC(sock, _PAGE_PCC_IO8);
-
- /* TODO: handle MAP_USE_WAIT */
- if (io->flags & MAP_USE_WAIT)
- printk(KERN_INFO MODNAME ": MAP_USE_WAIT unimplemented\n");
- /* TODO: handle MAP_PREFETCH */
- if (io->flags & MAP_PREFETCH)
- printk(KERN_INFO MODNAME ": MAP_PREFETCH unimplemented\n");
- /* TODO: handle MAP_WRPROT */
- if (io->flags & MAP_WRPROT)
- printk(KERN_INFO MODNAME ": MAP_WRPROT unimplemented\n");
- /* TODO: handle MAP_0WS */
- if (io->flags & MAP_0WS)
- printk(KERN_INFO MODNAME ": MAP_0WS unimplemented\n");
-
- if (io->flags & MAP_ACTIVE) {
- unsigned long pstart, psize, paddrbase;
-
- paddrbase = virt_to_phys((void*)(sp->mem_base + 2 * HD64465_PCC_WINDOW));
- pstart = io->start & PAGE_MASK;
- psize = ((io->stop + PAGE_SIZE) & PAGE_MASK) - pstart;
-
- /*
- * Change PTEs in only that portion of the mapping requested
- * by the caller. This means that most of the time, most of
- * the PTEs in the io_vma will be unmapped and only the bottom
- * page will be mapped. But the code allows for weird cards
- * that might want IO ports > 4K.
- */
- sp->io_base = p3_ioremap(paddrbase + pstart, psize, pgprot_val(prot));
-
- /*
- * Change the mapping used by inb() outb() etc
- */
- hd64465_port_map(io->start,
- io->stop - io->start + 1,
- (unsigned long)sp->io_base + io->start, 0);
- } else {
- hd64465_port_unmap(sio->start, sio->stop - sio->start + 1);
- p3_iounmap(sp->io_base);
- }
-
- *sio = *io;
- return 0;
-}
-
-/*============================================================*/
-
-static int hs_set_mem_map(struct pcmcia_socket *s, struct pccard_mem_map *mem)
-{
- hs_socket_t *sp = container_of(s, struct hs_socket_t, socket);
- struct pccard_mem_map *smem;
- int map = mem->map;
- unsigned long paddr;
-
-#if 0
- DPRINTK("hs_set_mem_map(sock=%d, map=%d, flags=0x%x, card_start=0x%08x)\n",
- sock, map, mem->flags, mem->card_start);
-#endif
-
- if (map >= MAX_WIN)
- return -EINVAL;
- smem = &sp->mem_maps[map];
-
- paddr = sp->mem_base; /* base of Attribute mapping */
- if (!(mem->flags & MAP_ATTRIB))
- paddr += HD64465_PCC_WINDOW; /* base of Common mapping */
- paddr += mem->card_start;
-
- /* Because we specified SS_CAP_STATIC_MAP, we are obliged
- * at this time to report the system address corresponding
- * to the card address requested. This is how Socket Services
- * queries our fixed mapping. I wish this fact had been
- * documented - Greg Banks.
- */
- mem->static_start = paddr;
-
- *smem = *mem;
-
- return 0;
-}
-
-/* TODO: do we need to use the MMU to access Common memory ??? */
-
-/*============================================================*/
-
-/*
- * This function is registered with the HD64465 glue code to do a
- * secondary demux step on the PCMCIA interrupts. It handles
- * mapping the IREQ request from the card to a standard Linux
- * IRQ, as requested by SocketServices.
- */
-static int hs_irq_demux(int irq, void *dev)
-{
- hs_socket_t *sp = dev;
- u_int cscr;
-
- DPRINTK("hs_irq_demux(irq=%d)\n", irq);
-
- if (sp->state.io_irq &&
- (cscr = hs_in(sp, CSCR)) & HD64465_PCCCSCR_PIREQ) {
- cscr &= ~HD64465_PCCCSCR_PIREQ;
- hs_out(sp, cscr, CSCR);
- return sp->state.io_irq;
- }
-
- return irq;
-}
-
-/*============================================================*/
-
-/*
- * Interrupt handling routine.
- */
-
-static irqreturn_t hs_interrupt(int irq, void *dev)
-{
- hs_socket_t *sp = dev;
- u_int events = 0;
- u_int cscr;
-
- cscr = hs_in(sp, CSCR);
-
- DPRINTK("hs_interrupt, cscr=%04x\n", cscr);
-
- /* check for bus-related changes to be reported to Socket Services */
- if (cscr & HD64465_PCCCSCR_PCDC) {
- /* double-check for a 16-bit card, as we don't support CardBus */
- if ((hs_in(sp, ISR) & HD64465_PCCISR_PCD_MASK) != 0) {
- printk(KERN_NOTICE MODNAME
- ": socket %d, card not a supported card type or not inserted correctly\n",
- sp->number);
- /* Don't do the rest unless a card is present */
- cscr &= ~(HD64465_PCCCSCR_PCDC|
- HD64465_PCCCSCR_PRC|
- HD64465_PCCCSCR_PBW|
- HD64465_PCCCSCR_PBD|
- HD64465_PCCCSCR_PSC);
- } else {
- cscr &= ~HD64465_PCCCSCR_PCDC;
- events |= SS_DETECT; /* card insertion or removal */
- }
- }
- if (cscr & HD64465_PCCCSCR_PRC) {
- cscr &= ~HD64465_PCCCSCR_PRC;
- events |= SS_READY; /* ready signal changed */
- }
- if (cscr & HD64465_PCCCSCR_PBW) {
- cscr &= ~HD64465_PCCCSCR_PSC;
- events |= SS_BATWARN; /* battery warning */
- }
- if (cscr & HD64465_PCCCSCR_PBD) {
- cscr &= ~HD64465_PCCCSCR_PSC;
- events |= SS_BATDEAD; /* battery dead */
- }
- if (cscr & HD64465_PCCCSCR_PSC) {
- cscr &= ~HD64465_PCCCSCR_PSC;
- events |= SS_STSCHG; /* STSCHG (status changed) signal */
- }
-
- if (cscr & HD64465_PCCCSCR_PIREQ) {
- cscr &= ~HD64465_PCCCSCR_PIREQ;
-
- /* This should have been dealt with during irq demux */
- printk(KERN_NOTICE MODNAME ": unexpected IREQ from card\n");
- }
-
- hs_out(sp, cscr, CSCR);
-
- if (events)
- pcmcia_parse_events(&sp->socket, events);
-
- return IRQ_HANDLED;
-}
-
-/*============================================================*/
-
-static struct pccard_operations hs_operations = {
- .init = hs_init,
- .get_status = hs_get_status,
- .set_socket = hs_set_socket,
- .set_io_map = hs_set_io_map,
- .set_mem_map = hs_set_mem_map,
-};
-
-static int hs_init_socket(hs_socket_t *sp, int irq, unsigned long mem_base,
- unsigned int ctrl_base)
-{
- unsigned short v;
- int i, err;
-
- memset(sp, 0, sizeof(*sp));
- sp->irq = irq;
- sp->mem_base = mem_base;
- sp->mem_length = 4*HD64465_PCC_WINDOW; /* 16MB */
- sp->ctrl_base = ctrl_base;
-
- for (i=0 ; i<MAX_IO_WIN ; i++)
- sp->io_maps[i].map = i;
- for (i=0 ; i<MAX_WIN ; i++)
- sp->mem_maps[i].map = i;
-
- hd64465_register_irq_demux(sp->irq, hs_irq_demux, sp);
-
- if ((err = request_irq(sp->irq, hs_interrupt, IRQF_DISABLED, MODNAME, sp)) < 0)
- return err;
- if (request_mem_region(sp->mem_base, sp->mem_length, MODNAME) == 0) {
- sp->mem_base = 0;
- return -ENOMEM;
- }
-
-
- /* According to section 3.2 of the PCMCIA standard, low-voltage
- * capable cards must implement cold insertion, i.e. Vpp and
- * Vcc set to 0 before card is inserted.
- */
- /*hs_set_voltages(sp, 0, 0);*/
-
- /* hi-Z the outputs to the card and set 16MB map mode */
- v = hs_in(sp, GCR);
- v &= ~HD64465_PCCGCR_PCCT; /* memory-only card */
- hs_out(sp, v, GCR);
-
- v = hs_in(sp, GCR);
- v |= HD64465_PCCGCR_PDRV; /* enable outputs to card */
- hs_out(sp, v, GCR);
-
- v = hs_in(sp, GCR);
- v |= HD64465_PCCGCR_PMMOD; /* 16MB mapping mode */
- hs_out(sp, v, GCR);
-
- v = hs_in(sp, GCR);
- /* lowest 16MB of Common */
- v &= ~(HD64465_PCCGCR_PPA25|HD64465_PCCGCR_PPA24);
- hs_out(sp, v, GCR);
-
- hs_reset_socket(sp, 1);
-
- printk(KERN_INFO "HD64465 PCMCIA bridge socket %d at 0x%08lx irq %d\n",
- i, sp->mem_base, sp->irq);
-
- return 0;
-}
-
-static void hs_exit_socket(hs_socket_t *sp)
-{
- unsigned short cscier, gcr;
- unsigned long flags;
-
- local_irq_save(flags);
-
- /* turn off interrupts in hardware */
- cscier = hs_in(sp, CSCIER);
- cscier = (cscier & IER_MASK) | IER_OFF;
- hs_out(sp, cscier, CSCIER);
-
- /* hi-Z the outputs to the card */
- gcr = hs_in(sp, GCR);
- gcr &= HD64465_PCCGCR_PDRV;
- hs_out(sp, gcr, GCR);
-
- /* power the card down */
- hs_set_voltages(sp, 0, 0);
-
- if (sp->mem_base != 0)
- release_mem_region(sp->mem_base, sp->mem_length);
- if (sp->irq != 0) {
- free_irq(sp->irq, hs_interrupt);
- hd64465_unregister_irq_demux(sp->irq);
- }
-
- local_irq_restore(flags);
-}
-
-static struct device_driver hd64465_driver = {
- .name = "hd64465-pcmcia",
- .bus = &platform_bus_type,
- .suspend = pcmcia_socket_dev_suspend,
- .resume = pcmcia_socket_dev_resume,
-};
-
-static struct platform_device hd64465_device = {
- .name = "hd64465-pcmcia",
- .id = 0,
-};
-
-static int __init init_hs(void)
-{
- int i;
- unsigned short v;
-
-/* hd64465_io_debug = 1; */
- if (driver_register(&hd64465_driver))
- return -EINVAL;
-
- /* Wake both sockets out of STANDBY mode */
- /* TODO: wait 15ms */
- v = inw(HD64465_REG_SMSCR);
- v &= ~(HD64465_SMSCR_PC0ST|HD64465_SMSCR_PC1ST);
- outw(v, HD64465_REG_SMSCR);
-
- /* keep power controller out of shutdown mode */
- v = inb(HD64465_REG_PCC0SCR);
- v |= HD64465_PCCSCR_SHDN;
- outb(v, HD64465_REG_PCC0SCR);
-
- /* use serial (TPS2206) power controller */
- v = inb(HD64465_REG_PCC0CSCR);
- v |= HD64465_PCCCSCR_PSWSEL;
- outb(v, HD64465_REG_PCC0CSCR);
-
- /*
- * Setup hs_sockets[] structures and request system resources.
- * TODO: on memory allocation failure, power down the socket
- * before quitting.
- */
- for (i=0; i<HS_MAX_SOCKETS; i++) {
- hs_set_voltages(&hs_sockets[i], 0, 0);
-
- hs_sockets[i].socket.features |= SS_CAP_PCCARD | SS_CAP_STATIC_MAP; /* mappings are fixed in host memory */
- hs_sockets[i].socket.resource_ops = &pccard_static_ops;
- hs_sockets[i].socket.irq_mask = 0xffde;/*0xffff*/ /* IRQs mapped in s/w so can do any, really */
- hs_sockets[i].socket.map_size = HD64465_PCC_WINDOW; /* 16MB fixed window size */
-
- hs_sockets[i].socket.owner = THIS_MODULE;
- hs_sockets[i].socket.ss_entry = &hs_operations;
- }
-
- i = hs_init_socket(&hs_sockets[0],
- HD64465_IRQ_PCMCIA0,
- HD64465_PCC0_BASE,
- HD64465_REG_PCC0ISR);
- if (i < 0) {
- unregister_driver(&hd64465_driver);
- return i;
- }
- i = hs_init_socket(&hs_sockets[1],
- HD64465_IRQ_PCMCIA1,
- HD64465_PCC1_BASE,
- HD64465_REG_PCC1ISR);
- if (i < 0) {
- unregister_driver(&hd64465_driver);
- return i;
- }
-
-/* hd64465_io_debug = 0; */
-
- platform_device_register(&hd64465_device);
-
- for (i=0; i<HS_MAX_SOCKETS; i++) {
- unsigned int ret;
- hs_sockets[i].socket.dev.parent = &hd64465_device.dev;
- hs_sockets[i].number = i;
- ret = pcmcia_register_socket(&hs_sockets[i].socket);
- if (ret && i)
- pcmcia_unregister_socket(&hs_sockets[0].socket);
- }
-
- return 0;
-}
-
-static void __exit exit_hs(void)
-{
- int i;
-
- for (i=0 ; i<HS_MAX_SOCKETS ; i++) {
- pcmcia_unregister_socket(&hs_sockets[i].socket);
- hs_exit_socket(&hs_sockets[i]);
- }
-
- platform_device_unregister(&hd64465_device);
- unregister_driver(&hd64465_driver);
-}
-
-module_init(init_hs);
-module_exit(exit_hs);
-
-/*============================================================*/
-/*END*/