arm: bus_id -> dev_name() and dev_set_name() conversions
[linux-2.6.git] / arch / arm / kernel / ecard.c
index 00aa225..f5cfdab 100644 (file)
@@ -27,7 +27,6 @@
  */
 #define ECARD_C
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/device.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
+#include <linux/kthread.h>
+#include <linux/io.h>
 
 #include <asm/dma.h>
 #include <asm/ecard.h>
 #include <asm/hardware.h>
-#include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/mmu_context.h>
 #include <asm/mach/irq.h>
 #include <asm/tlbflush.h>
 
+#include "ecard.h"
+
 #ifndef CONFIG_ARCH_RPC
 #define HAVE_EXPMASK
 #endif
@@ -124,7 +127,7 @@ static void ecard_task_reset(struct ecard_request *req)
 
        res = ec->slot_no == 8
                ? &ec->resource[ECARD_RES_MEMC]
-               : ec->type == ECARD_EASI
+               : ec->easi
                  ? &ec->resource[ECARD_RES_EASI]
                  : &ec->resource[ECARD_RES_IOCSYNC];
 
@@ -179,7 +182,7 @@ static void ecard_task_readbytes(struct ecard_request *req)
                        index += 1;
                }
        } else {
-               unsigned long base = (ec->type == ECARD_EASI
+               unsigned long base = (ec->easi
                         ? &ec->resource[ECARD_RES_EASI]
                         : &ec->resource[ECARD_RES_IOCSYNC])->start;
                void __iomem *pbase = (void __iomem *)base;
@@ -264,8 +267,6 @@ static int ecard_init_mm(void)
 static int
 ecard_task(void * unused)
 {
-       daemonize("kecardd");
-
        /*
         * Allocate a mm.  We're not a lazy-TLB kernel task since we need
         * to set page table entries where the user space would be.  Note
@@ -296,7 +297,7 @@ ecard_task(void * unused)
  */
 static void ecard_call(struct ecard_request *req)
 {
-       DECLARE_COMPLETION(completion);
+       DECLARE_COMPLETION_ONSTACK(completion);
 
        req->complete = &completion;
 
@@ -354,7 +355,7 @@ int ecard_readchunk(struct in_chunk_dir *cd, ecard_t *ec, int id, int num)
                }
                if (c_id(&excd) == 0x80) { /* loader */
                        if (!ec->loader) {
-                               ec->loader = (loader_t)kmalloc(c_len(&excd),
+                               ec->loader = kmalloc(c_len(&excd),
                                                               GFP_KERNEL);
                                if (ec->loader)
                                        ecard_readbytes(ec->loader, ec,
@@ -471,7 +472,8 @@ static void ecard_irq_mask(unsigned int irqnr)
        }
 }
 
-static struct irqchip ecard_chip = {
+static struct irq_chip ecard_chip = {
+       .name   = "ECARD",
        .ack    = ecard_irq_mask,
        .mask   = ecard_irq_mask,
        .unmask = ecard_irq_unmask,
@@ -529,7 +531,7 @@ static void ecard_dump_irq_state(void)
        }
 }
 
-static void ecard_check_lockup(struct irqdesc *desc)
+static void ecard_check_lockup(struct irq_desc *desc)
 {
        static unsigned long last;
        static int lockup;
@@ -567,7 +569,7 @@ static void ecard_check_lockup(struct irqdesc *desc)
 }
 
 static void
-ecard_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
+ecard_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
        ecard_t *ec;
        int called = 0;
@@ -585,8 +587,8 @@ ecard_irq_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
                        pending = ecard_default_ops.irqpending(ec);
 
                if (pending) {
-                       struct irqdesc *d = irq_desc + ec->irq;
-                       desc_handle_irq(ec->irq, d, regs);
+                       struct irq_desc *d = irq_desc + ec->irq;
+                       desc_handle_irq(ec->irq, d);
                        called ++;
                }
        }
@@ -609,7 +611,7 @@ static unsigned char first_set[] =
 };
 
 static void
-ecard_irqexp_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
+ecard_irqexp_handler(unsigned int irq, struct irq_desc *desc)
 {
        const unsigned int statusmask = 15;
        unsigned int status;
@@ -620,7 +622,7 @@ ecard_irqexp_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *reg
                ecard_t *ec = slot_to_ecard(slot);
 
                if (ec->claimed) {
-                       struct irqdesc *d = irqdesc + ec->irq;
+                       struct irq_desc *d = irq_desc + ec->irq;
                        /*
                         * this ugly code is so that we can operate a
                         * prioritorising system:
@@ -633,7 +635,7 @@ ecard_irqexp_handler(unsigned int irq, struct irqdesc *desc, struct pt_regs *reg
                         * Serial cards should go in 0/1, ethernet/scsi in 2/3
                         * otherwise you will lose serial data at high speeds!
                         */
-                       desc_handle_irq(ec->irq, d, regs);
+                       desc_handle_irq(ec->irq, d);
                } else {
                        printk(KERN_WARNING "card%d: interrupt from unclaimed "
                               "card???\n", slot);
@@ -678,7 +680,7 @@ static int __init ecard_probeirqhw(void)
 #define IO_EC_MEMC8_BASE 0
 #endif
 
-unsigned int __ecard_address(ecard_t *ec, card_type_t type, card_speed_t speed)
+static unsigned int __ecard_address(ecard_t *ec, card_type_t type, card_speed_t speed)
 {
        unsigned long address = 0;
        int slot = ec->slot_no;
@@ -722,17 +724,14 @@ unsigned int __ecard_address(ecard_t *ec, card_type_t type, card_speed_t speed)
        return address;
 }
 
-static int ecard_prints(char *buffer, ecard_t *ec)
+static int ecard_prints(struct seq_file *m, ecard_t *ec)
 {
-       char *start = buffer;
-
-       buffer += sprintf(buffer, "  %d: %s ", ec->slot_no,
-                         ec->type == ECARD_EASI ? "EASI" : "    ");
+       seq_printf(m, "  %d: %s ", ec->slot_no, ec->easi ? "EASI" : "    ");
 
        if (ec->cid.id == 0) {
                struct in_chunk_dir incd;
 
-               buffer += sprintf(buffer, "[%04X:%04X] ",
+               seq_printf(m, "[%04X:%04X] ",
                        ec->cid.manufacturer, ec->cid.product);
 
                if (!ec->card_desc && ec->cid.cd &&
@@ -743,48 +742,48 @@ static int ecard_prints(char *buffer, ecard_t *ec)
                                strcpy((char *)ec->card_desc, incd.d.string);
                }
 
-               buffer += sprintf(buffer, "%s\n", ec->card_desc ? ec->card_desc : "*unknown*");
+               seq_printf(m, "%s\n", ec->card_desc ? ec->card_desc : "*unknown*");
        } else
-               buffer += sprintf(buffer, "Simple card %d\n", ec->cid.id);
+               seq_printf(m, "Simple card %d\n", ec->cid.id);
 
-       return buffer - start;
+       return 0;
 }
 
-static int get_ecard_dev_info(char *buf, char **start, off_t pos, int count)
+static int ecard_devices_proc_show(struct seq_file *m, void *v)
 {
        ecard_t *ec = cards;
-       off_t at = 0;
-       int len, cnt;
-
-       cnt = 0;
-       while (ec && count > cnt) {
-               len = ecard_prints(buf, ec);
-               at += len;
-               if (at >= pos) {
-                       if (!*start) {
-                               *start = buf + (pos - (at - len));
-                               cnt = at - pos;
-                       } else
-                               cnt += len;
-                       buf += len;
-               }
+
+       while (ec) {
+               ecard_prints(m, ec);
                ec = ec->next;
        }
-       return (count > cnt) ? cnt : count;
+       return 0;
 }
 
+static int ecard_devices_proc_open(struct inode *inode, struct file *file)
+{
+       return single_open(file, ecard_devices_proc_show, NULL);
+}
+
+static const struct file_operations bus_ecard_proc_fops = {
+       .owner          = THIS_MODULE,
+       .open           = ecard_devices_proc_open,
+       .read           = seq_read,
+       .llseek         = seq_lseek,
+       .release        = single_release,
+};
+
 static struct proc_dir_entry *proc_bus_ecard_dir = NULL;
 
 static void ecard_proc_init(void)
 {
-       proc_bus_ecard_dir = proc_mkdir("ecard", proc_bus);
-       create_proc_info_entry("devices", 0, proc_bus_ecard_dir,
-               get_ecard_dev_info);
+       proc_bus_ecard_dir = proc_mkdir("bus/ecard", NULL);
+       proc_create("devices", 0, proc_bus_ecard_dir, &bus_ecard_proc_fops);
 }
 
 #define ec_set_resource(ec,nr,st,sz)                           \
        do {                                                    \
-               (ec)->resource[nr].name = ec->dev.bus_id;       \
+               (ec)->resource[nr].name = dev_name(&ec->dev);   \
                (ec)->resource[nr].start = st;                  \
                (ec)->resource[nr].end = (st) + (sz) - 1;       \
                (ec)->resource[nr].flags = IORESOURCE_MEM;      \
@@ -814,7 +813,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
        }
 
        ec->slot_no = slot;
-       ec->type = type;
+       ec->easi = type == ECARD_EASI;
        ec->irq = NO_IRQ;
        ec->fiq = NO_IRQ;
        ec->dma = NO_DMA;
@@ -825,6 +824,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
        ec->dev.bus = &ecard_bus_type;
        ec->dev.dma_mask = &ec->dma_mask;
        ec->dma_mask = (u64)0xffffffff;
+       ec->dev.coherent_dma_mask = ec->dma_mask;
 
        if (slot < 4) {
                ec_set_resource(ec, ECARD_RES_MEMC,
@@ -853,8 +853,7 @@ static struct expansion_card *__init ecard_alloc_card(int type, int slot)
        for (i = 0; i < ECARD_NUM_RESOURCES; i++) {
                if (ec->resource[i].flags &&
                    request_resource(&iomem_resource, &ec->resource[i])) {
-                       printk(KERN_ERR "%s: resource(s) not available\n",
-                               ec->dev.bus_id);
+                       dev_err(&ec->dev, "resource(s) not available\n");
                        ec->resource[i].end -= ec->resource[i].start;
                        ec->resource[i].start = 0;
                        ec->resource[i].flags = 0;
@@ -884,7 +883,7 @@ static ssize_t ecard_show_resources(struct device *dev, struct device_attribute
        int i;
 
        for (i = 0; i < ECARD_NUM_RESOURCES; i++)
-               str += sprintf(str, "%08lx %08lx %08lx\n",
+               str += sprintf(str, "%08x %08x %08lx\n",
                                ec->resource[i].start,
                                ec->resource[i].end,
                                ec->resource[i].flags);
@@ -907,7 +906,7 @@ static ssize_t ecard_show_device(struct device *dev, struct device_attribute *at
 static ssize_t ecard_show_type(struct device *dev, struct device_attribute *attr, char *buf)
 {
        struct expansion_card *ec = ECARD_DEV(dev);
-       return sprintf(buf, "%s\n", ec->type == ECARD_EASI ? "EASI" : "IOC");
+       return sprintf(buf, "%s\n", ec->easi ? "EASI" : "IOC");
 }
 
 static struct device_attribute ecard_dev_attrs[] = {
@@ -956,6 +955,31 @@ void ecard_release_resources(struct expansion_card *ec)
 }
 EXPORT_SYMBOL(ecard_release_resources);
 
+void ecard_setirq(struct expansion_card *ec, const struct expansion_card_ops *ops, void *irq_data)
+{
+       ec->irq_data = irq_data;
+       barrier();
+       ec->ops = ops;
+}
+EXPORT_SYMBOL(ecard_setirq);
+
+void __iomem *ecardm_iomap(struct expansion_card *ec, unsigned int res,
+                          unsigned long offset, unsigned long maxsize)
+{
+       unsigned long start = ecard_resource_start(ec, res);
+       unsigned long end = ecard_resource_end(ec, res);
+
+       if (offset > (end - start))
+               return NULL;
+
+       start += offset;
+       if (maxsize && end - start > maxsize)
+               end = start + maxsize;
+       
+       return devm_ioremap(&ec->dev, start, end - start);
+}
+EXPORT_SYMBOL(ecardm_iomap);
+
 /*
  * Probe for an expansion card.
  *
@@ -977,7 +1001,7 @@ ecard_probe(int slot, card_type_t type)
        }
 
        rc = -ENODEV;
-       if ((ec->podaddr = ecard_address(ec, type, ECARD_SYNC)) == 0)
+       if ((ec->podaddr = __ecard_address(ec, type, ECARD_SYNC)) == 0)
                goto nodev;
 
        cid.r_zero = 1;
@@ -1009,7 +1033,7 @@ ecard_probe(int slot, card_type_t type)
                ec->fiqmask = 4;
        }
 
-       for (i = 0; i < sizeof(blacklist) / sizeof(*blacklist); i++)
+       for (i = 0; i < ARRAY_SIZE(blacklist); i++)
                if (blacklist[i].manufacturer == ec->cid.manufacturer &&
                    blacklist[i].product == ec->cid.product) {
                        ec->card_desc = blacklist[i].type;
@@ -1022,7 +1046,7 @@ ecard_probe(int slot, card_type_t type)
        if (slot < 8) {
                ec->irq = 32 + slot;
                set_irq_chip(ec->irq, &ecard_chip);
-               set_irq_handler(ec->irq, do_level_IRQ);
+               set_irq_handler(ec->irq, handle_level_irq);
                set_irq_flags(ec->irq, IRQF_VALID);
        }
 
@@ -1058,13 +1082,14 @@ ecard_probe(int slot, card_type_t type)
  */
 static int __init ecard_init(void)
 {
-       int slot, irqhw, ret;
-
-       ret = kernel_thread(ecard_task, NULL, CLONE_KERNEL);
-       if (ret < 0) {
-               printk(KERN_ERR "Ecard: unable to create kernel thread: %d\n",
-                      ret);
-               return ret;
+       struct task_struct *task;
+       int slot, irqhw;
+
+       task = kthread_run(ecard_task, NULL, "kecardd");
+       if (IS_ERR(task)) {
+               printk(KERN_ERR "Ecard: unable to create kernel thread: %ld\n",
+                      PTR_ERR(task));
+               return PTR_ERR(task);
        }
 
        printk("Probing expansion cards\n");
@@ -1115,10 +1140,10 @@ static int ecard_drv_probe(struct device *dev)
 
        id = ecard_match_device(drv->id_table, ec);
 
-       ecard_claim(ec);
+       ec->claimed = 1;
        ret = drv->probe(ec, id);
        if (ret)
-               ecard_release(ec);
+               ec->claimed = 0;
        return ret;
 }
 
@@ -1128,7 +1153,15 @@ static int ecard_drv_remove(struct device *dev)
        struct ecard_driver *drv = ECARD_DRV(dev->driver);
 
        drv->remove(ec);
-       ecard_release(ec);
+       ec->claimed = 0;
+
+       /*
+        * Restore the default operations.  We ensure that the
+        * ops are set before we change the data.
+        */
+       ec->ops = &ecard_default_ops;
+       barrier();
+       ec->irq_data = NULL;
 
        return 0;
 }
@@ -1148,7 +1181,7 @@ static void ecard_drv_shutdown(struct device *dev)
        if (dev->driver) {
                if (drv->shutdown)
                        drv->shutdown(ec);
-               ecard_release(ec);
+               ec->claimed = 0;
        }
 
        /*
@@ -1205,7 +1238,6 @@ static int ecard_bus_init(void)
 postcore_initcall(ecard_bus_init);
 
 EXPORT_SYMBOL(ecard_readchunk);
-EXPORT_SYMBOL(__ecard_address);
 EXPORT_SYMBOL(ecard_register_driver);
 EXPORT_SYMBOL(ecard_remove_driver);
 EXPORT_SYMBOL(ecard_bus_type);