[SCSI] zfcp: Cleanup function parameters for sbal value.
[linux-2.6.git] / drivers / pnp / interface.c
index 53fac8b..cfaf5b7 100644 (file)
@@ -1,9 +1,10 @@
 /*
  * interface.c - contains everything related to the user interface
  *
- * Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@suse.cz>
+ * Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@perex.cz>
  * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
- *
+ * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
+ *     Bjorn Helgaas <bjorn.helgaas@hp.com>
  */
 
 #include <linux/pnp.h>
@@ -14,6 +15,8 @@
 #include <linux/stat.h>
 #include <linux/ctype.h>
 #include <linux/slab.h>
+#include <linux/mutex.h>
+
 #include <asm/uaccess.h>
 
 #include "base.h"
@@ -29,7 +32,7 @@ struct pnp_info_buffer {
 
 typedef struct pnp_info_buffer pnp_info_buffer_t;
 
-static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt,...)
+static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt, ...)
 {
        va_list args;
        int res;
@@ -48,20 +51,26 @@ static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt,...)
        return res;
 }
 
-static void pnp_print_port(pnp_info_buffer_t *buffer, char *space, struct pnp_port *port)
+static void pnp_print_port(pnp_info_buffer_t * buffer, char *space,
+                          struct pnp_port *port)
 {
-       pnp_printf(buffer, "%sport 0x%x-0x%x, align 0x%x, size 0x%x, %i-bit address decoding\n",
-                       space, port->min, port->max, port->align ? (port->align-1) : 0, port->size,
-                       port->flags & PNP_PORT_FLAG_16BITADDR ? 16 : 10);
+       pnp_printf(buffer, "%sport %#llx-%#llx, align %#llx, size %#llx, "
+                  "%i-bit address decoding\n", space,
+                  (unsigned long long) port->min,
+                  (unsigned long long) port->max,
+                  port->align ? ((unsigned long long) port->align - 1) : 0,
+                  (unsigned long long) port->size,
+                  port->flags & IORESOURCE_IO_16BIT_ADDR ? 16 : 10);
 }
 
-static void pnp_print_irq(pnp_info_buffer_t *buffer, char *space, struct pnp_irq *irq)
+static void pnp_print_irq(pnp_info_buffer_t * buffer, char *space,
+                         struct pnp_irq *irq)
 {
        int first = 1, i;
 
        pnp_printf(buffer, "%sirq ", space);
        for (i = 0; i < PNP_IRQ_NR; i++)
-               if (test_bit(i, irq->map)) {
+               if (test_bit(i, irq->map.bits)) {
                        if (!first) {
                                pnp_printf(buffer, ",");
                        } else {
@@ -72,7 +81,7 @@ static void pnp_print_irq(pnp_info_buffer_t *buffer, char *space, struct pnp_irq
                        else
                                pnp_printf(buffer, "%i", i);
                }
-       if (bitmap_empty(irq->map, PNP_IRQ_NR))
+       if (bitmap_empty(irq->map.bits, PNP_IRQ_NR))
                pnp_printf(buffer, "<none>");
        if (irq->flags & IORESOURCE_IRQ_HIGHEDGE)
                pnp_printf(buffer, " High-Edge");
@@ -82,17 +91,20 @@ static void pnp_print_irq(pnp_info_buffer_t *buffer, char *space, struct pnp_irq
                pnp_printf(buffer, " High-Level");
        if (irq->flags & IORESOURCE_IRQ_LOWLEVEL)
                pnp_printf(buffer, " Low-Level");
+       if (irq->flags & IORESOURCE_IRQ_OPTIONAL)
+               pnp_printf(buffer, " (optional)");
        pnp_printf(buffer, "\n");
 }
 
-static void pnp_print_dma(pnp_info_buffer_t *buffer, char *space, struct pnp_dma *dma)
+static void pnp_print_dma(pnp_info_buffer_t * buffer, char *space,
+                         struct pnp_dma *dma)
 {
        int first = 1, i;
        char *s;
 
        pnp_printf(buffer, "%sdma ", space);
        for (i = 0; i < 8; i++)
-               if (dma->map & (1<<i)) {
+               if (dma->map & (1 << i)) {
                        if (!first) {
                                pnp_printf(buffer, ",");
                        } else {
@@ -136,12 +148,16 @@ static void pnp_print_dma(pnp_info_buffer_t *buffer, char *space, struct pnp_dma
        pnp_printf(buffer, " %s\n", s);
 }
 
-static void pnp_print_mem(pnp_info_buffer_t *buffer, char *space, struct pnp_mem *mem)
+static void pnp_print_mem(pnp_info_buffer_t * buffer, char *space,
+                         struct pnp_mem *mem)
 {
        char *s;
 
-       pnp_printf(buffer, "%sMemory 0x%x-0x%x, align 0x%x, size 0x%x",
-                       space, mem->min, mem->max, mem->align, mem->size);
+       pnp_printf(buffer, "%sMemory %#llx-%#llx, align %#llx, size %#llx",
+                  space, (unsigned long long) mem->min,
+                  (unsigned long long) mem->max,
+                  (unsigned long long) mem->align,
+                  (unsigned long long) mem->size);
        if (mem->flags & IORESOURCE_MEM_WRITEABLE)
                pnp_printf(buffer, ", writeable");
        if (mem->flags & IORESOURCE_MEM_CACHEABLE)
@@ -168,301 +184,245 @@ static void pnp_print_mem(pnp_info_buffer_t *buffer, char *space, struct pnp_mem
        pnp_printf(buffer, ", %s\n", s);
 }
 
-static void pnp_print_option(pnp_info_buffer_t *buffer, char *space,
-                            struct pnp_option *option, int dep)
+static void pnp_print_option(pnp_info_buffer_t * buffer, char *space,
+                            struct pnp_option *option)
 {
-       char *s;
-       struct pnp_port *port;
-       struct pnp_irq *irq;
-       struct pnp_dma *dma;
-       struct pnp_mem *mem;
-
-       if (dep) {
-               switch (option->priority) {
-                       case PNP_RES_PRIORITY_PREFERRED:
-                       s = "preferred";
-                       break;
-                       case PNP_RES_PRIORITY_ACCEPTABLE:
-                       s = "acceptable";
-                       break;
-                       case PNP_RES_PRIORITY_FUNCTIONAL:
-                       s = "functional";
-                       break;
-                       default:
-                       s = "invalid";
-               }
-               pnp_printf(buffer, "Dependent: %02i - Priority %s\n",dep, s);
+       switch (option->type) {
+       case IORESOURCE_IO:
+               pnp_print_port(buffer, space, &option->u.port);
+               break;
+       case IORESOURCE_MEM:
+               pnp_print_mem(buffer, space, &option->u.mem);
+               break;
+       case IORESOURCE_IRQ:
+               pnp_print_irq(buffer, space, &option->u.irq);
+               break;
+       case IORESOURCE_DMA:
+               pnp_print_dma(buffer, space, &option->u.dma);
+               break;
        }
-
-       for (port = option->port; port; port = port->next)
-               pnp_print_port(buffer, space, port);
-       for (irq = option->irq; irq; irq = irq->next)
-               pnp_print_irq(buffer, space, irq);
-       for (dma = option->dma; dma; dma = dma->next)
-               pnp_print_dma(buffer, space, dma);
-       for (mem = option->mem; mem; mem = mem->next)
-               pnp_print_mem(buffer, space, mem);
 }
 
-
-static ssize_t pnp_show_options(struct device *dmdev, char *buf)
+static ssize_t pnp_show_options(struct device *dmdev,
+                               struct device_attribute *attr, char *buf)
 {
        struct pnp_dev *dev = to_pnp_dev(dmdev);
-       struct pnp_option * independent = dev->independent;
-       struct pnp_option * dependent = dev->dependent;
-       int ret, dep = 1;
+       pnp_info_buffer_t *buffer;
+       struct pnp_option *option;
+       int ret, dep = 0, set = 0;
+       char *indent;
 
-       pnp_info_buffer_t *buffer = (pnp_info_buffer_t *)
-                                pnp_alloc(sizeof(pnp_info_buffer_t));
+       buffer = pnp_alloc(sizeof(pnp_info_buffer_t));
        if (!buffer)
                return -ENOMEM;
 
        buffer->len = PAGE_SIZE;
        buffer->buffer = buf;
        buffer->curr = buffer->buffer;
-       if (independent)
-               pnp_print_option(buffer, "", independent, 0);
 
-       while (dependent){
-               pnp_print_option(buffer, "   ", dependent, dep);
-               dependent = dependent->next;
-               dep++;
+       list_for_each_entry(option, &dev->options, list) {
+               if (pnp_option_is_dependent(option)) {
+                       indent = "  ";
+                       if (!dep || pnp_option_set(option) != set) {
+                               set = pnp_option_set(option);
+                               dep = 1;
+                               pnp_printf(buffer, "Dependent: %02i - "
+                                          "Priority %s\n", set,
+                                          pnp_option_priority_name(option));
+                       }
+               } else {
+                       dep = 0;
+                       indent = "";
+               }
+               pnp_print_option(buffer, indent, option);
        }
+
        ret = (buffer->curr - buf);
        kfree(buffer);
        return ret;
 }
 
-static DEVICE_ATTR(options,S_IRUGO,pnp_show_options,NULL);
-
-
-static ssize_t pnp_show_current_resources(struct device *dmdev, char *buf)
+static ssize_t pnp_show_current_resources(struct device *dmdev,
+                                         struct device_attribute *attr,
+                                         char *buf)
 {
        struct pnp_dev *dev = to_pnp_dev(dmdev);
-       int i, ret;
        pnp_info_buffer_t *buffer;
+       struct pnp_resource *pnp_res;
+       struct resource *res;
+       int ret;
 
        if (!dev)
                return -EINVAL;
 
-       buffer = (pnp_info_buffer_t *) pnp_alloc(sizeof(pnp_info_buffer_t));
+       buffer = pnp_alloc(sizeof(pnp_info_buffer_t));
        if (!buffer)
                return -ENOMEM;
+
        buffer->len = PAGE_SIZE;
        buffer->buffer = buf;
        buffer->curr = buffer->buffer;
 
-       pnp_printf(buffer,"state = ");
-       if (dev->active)
-               pnp_printf(buffer,"active\n");
-       else
-               pnp_printf(buffer,"disabled\n");
-
-       for (i = 0; i < PNP_MAX_PORT; i++) {
-               if (pnp_port_valid(dev, i)) {
-                       pnp_printf(buffer,"io");
-                       if (pnp_port_flags(dev, i) & IORESOURCE_DISABLED)
-                               pnp_printf(buffer," disabled\n");
-                       else
-                               pnp_printf(buffer," 0x%lx-0x%lx\n",
-                                               pnp_port_start(dev, i),
-                                               pnp_port_end(dev, i));
-               }
-       }
-       for (i = 0; i < PNP_MAX_MEM; i++) {
-               if (pnp_mem_valid(dev, i)) {
-                       pnp_printf(buffer,"mem");
-                       if (pnp_mem_flags(dev, i) & IORESOURCE_DISABLED)
-                               pnp_printf(buffer," disabled\n");
-                       else
-                               pnp_printf(buffer," 0x%lx-0x%lx\n",
-                                               pnp_mem_start(dev, i),
-                                               pnp_mem_end(dev, i));
-               }
-       }
-       for (i = 0; i < PNP_MAX_IRQ; i++) {
-               if (pnp_irq_valid(dev, i)) {
-                       pnp_printf(buffer,"irq");
-                       if (pnp_irq_flags(dev, i) & IORESOURCE_DISABLED)
-                               pnp_printf(buffer," disabled\n");
-                       else
-                               pnp_printf(buffer," %ld\n",
-                                               pnp_irq(dev, i));
+       pnp_printf(buffer, "state = %s\n", dev->active ? "active" : "disabled");
+
+       list_for_each_entry(pnp_res, &dev->resources, list) {
+               res = &pnp_res->res;
+
+               pnp_printf(buffer, pnp_resource_type_name(res));
+
+               if (res->flags & IORESOURCE_DISABLED) {
+                       pnp_printf(buffer, " disabled\n");
+                       continue;
                }
-       }
-       for (i = 0; i < PNP_MAX_DMA; i++) {
-               if (pnp_dma_valid(dev, i)) {
-                       pnp_printf(buffer,"dma");
-                       if (pnp_dma_flags(dev, i) & IORESOURCE_DISABLED)
-                               pnp_printf(buffer," disabled\n");
-                       else
-                               pnp_printf(buffer," %ld\n",
-                                               pnp_dma(dev, i));
+
+               switch (pnp_resource_type(res)) {
+               case IORESOURCE_IO:
+               case IORESOURCE_MEM:
+               case IORESOURCE_BUS:
+                       pnp_printf(buffer, " %#llx-%#llx%s\n",
+                                  (unsigned long long) res->start,
+                                  (unsigned long long) res->end,
+                                  res->flags & IORESOURCE_WINDOW ?
+                                       " window" : "");
+                       break;
+               case IORESOURCE_IRQ:
+               case IORESOURCE_DMA:
+                       pnp_printf(buffer, " %lld\n",
+                                  (unsigned long long) res->start);
+                       break;
                }
        }
+
        ret = (buffer->curr - buf);
        kfree(buffer);
        return ret;
 }
 
-extern struct semaphore pnp_res_mutex;
-
-static ssize_t
-pnp_set_current_resources(struct device * dmdev, const char * ubuf, size_t count)
+static ssize_t pnp_set_current_resources(struct device *dmdev,
+                                        struct device_attribute *attr,
+                                        const char *ubuf, size_t count)
 {
        struct pnp_dev *dev = to_pnp_dev(dmdev);
-       char    *buf = (void *)ubuf;
-       int     retval = 0;
+       char *buf = (void *)ubuf;
+       int retval = 0;
+       resource_size_t start, end;
 
        if (dev->status & PNP_ATTACHED) {
                retval = -EBUSY;
-               pnp_info("Device %s cannot be configured because it is in use.", dev->dev.bus_id);
+               dev_info(&dev->dev, "in use; can't configure\n");
                goto done;
        }
 
-       while (isspace(*buf))
-               ++buf;
-       if (!strnicmp(buf,"disable",7)) {
+       buf = skip_spaces(buf);
+       if (!strnicmp(buf, "disable", 7)) {
                retval = pnp_disable_dev(dev);
                goto done;
        }
-       if (!strnicmp(buf,"activate",8)) {
+       if (!strnicmp(buf, "activate", 8)) {
                retval = pnp_activate_dev(dev);
                goto done;
        }
-       if (!strnicmp(buf,"fill",4)) {
+       if (!strnicmp(buf, "fill", 4)) {
                if (dev->active)
                        goto done;
                retval = pnp_auto_config_dev(dev);
                goto done;
        }
-       if (!strnicmp(buf,"auto",4)) {
+       if (!strnicmp(buf, "auto", 4)) {
                if (dev->active)
                        goto done;
-               pnp_init_resource_table(&dev->res);
+               pnp_init_resources(dev);
                retval = pnp_auto_config_dev(dev);
                goto done;
        }
-       if (!strnicmp(buf,"clear",5)) {
+       if (!strnicmp(buf, "clear", 5)) {
                if (dev->active)
                        goto done;
-               pnp_init_resource_table(&dev->res);
+               pnp_init_resources(dev);
                goto done;
        }
-       if (!strnicmp(buf,"get",3)) {
-               down(&pnp_res_mutex);
+       if (!strnicmp(buf, "get", 3)) {
+               mutex_lock(&pnp_res_mutex);
                if (pnp_can_read(dev))
-                       dev->protocol->get(dev, &dev->res);
-               up(&pnp_res_mutex);
+                       dev->protocol->get(dev);
+               mutex_unlock(&pnp_res_mutex);
                goto done;
        }
-       if (!strnicmp(buf,"set",3)) {
-               int nport = 0, nmem = 0, nirq = 0, ndma = 0;
+       if (!strnicmp(buf, "set", 3)) {
                if (dev->active)
                        goto done;
                buf += 3;
-               pnp_init_resource_table(&dev->res);
-               down(&pnp_res_mutex);
+               pnp_init_resources(dev);
+               mutex_lock(&pnp_res_mutex);
                while (1) {
-                       while (isspace(*buf))
-                               ++buf;
-                       if (!strnicmp(buf,"io",2)) {
-                               buf += 2;
-                               while (isspace(*buf))
-                                       ++buf;
-                               dev->res.port_resource[nport].start = simple_strtoul(buf,&buf,0);
-                               while (isspace(*buf))
-                                       ++buf;
-                               if(*buf == '-') {
-                                       buf += 1;
-                                       while (isspace(*buf))
-                                               ++buf;
-                                       dev->res.port_resource[nport].end = simple_strtoul(buf,&buf,0);
+                       buf = skip_spaces(buf);
+                       if (!strnicmp(buf, "io", 2)) {
+                               buf = skip_spaces(buf + 2);
+                               start = simple_strtoul(buf, &buf, 0);
+                               buf = skip_spaces(buf);
+                               if (*buf == '-') {
+                                       buf = skip_spaces(buf + 1);
+                                       end = simple_strtoul(buf, &buf, 0);
                                } else
-                                       dev->res.port_resource[nport].end = dev->res.port_resource[nport].start;
-                               dev->res.port_resource[nport].flags = IORESOURCE_IO;
-                               nport++;
-                               if (nport >= PNP_MAX_PORT)
-                                       break;
+                                       end = start;
+                               pnp_add_io_resource(dev, start, end, 0);
                                continue;
                        }
-                       if (!strnicmp(buf,"mem",3)) {
-                               buf += 3;
-                               while (isspace(*buf))
-                                       ++buf;
-                               dev->res.mem_resource[nmem].start = simple_strtoul(buf,&buf,0);
-                               while (isspace(*buf))
-                                       ++buf;
-                               if(*buf == '-') {
-                                       buf += 1;
-                                       while (isspace(*buf))
-                                               ++buf;
-                                       dev->res.mem_resource[nmem].end = simple_strtoul(buf,&buf,0);
+                       if (!strnicmp(buf, "mem", 3)) {
+                               buf = skip_spaces(buf + 3);
+                               start = simple_strtoul(buf, &buf, 0);
+                               buf = skip_spaces(buf);
+                               if (*buf == '-') {
+                                       buf = skip_spaces(buf + 1);
+                                       end = simple_strtoul(buf, &buf, 0);
                                } else
-                                       dev->res.mem_resource[nmem].end = dev->res.mem_resource[nmem].start;
-                               dev->res.mem_resource[nmem].flags = IORESOURCE_MEM;
-                               nmem++;
-                               if (nmem >= PNP_MAX_MEM)
-                                       break;
+                                       end = start;
+                               pnp_add_mem_resource(dev, start, end, 0);
                                continue;
                        }
-                       if (!strnicmp(buf,"irq",3)) {
-                               buf += 3;
-                               while (isspace(*buf))
-                                       ++buf;
-                               dev->res.irq_resource[nirq].start =
-                               dev->res.irq_resource[nirq].end = simple_strtoul(buf,&buf,0);
-                               dev->res.irq_resource[nirq].flags = IORESOURCE_IRQ;
-                               nirq++;
-                               if (nirq >= PNP_MAX_IRQ)
-                                       break;
+                       if (!strnicmp(buf, "irq", 3)) {
+                               buf = skip_spaces(buf + 3);
+                               start = simple_strtoul(buf, &buf, 0);
+                               pnp_add_irq_resource(dev, start, 0);
                                continue;
                        }
-                       if (!strnicmp(buf,"dma",3)) {
-                               buf += 3;
-                               while (isspace(*buf))
-                                       ++buf;
-                               dev->res.dma_resource[ndma].start =
-                               dev->res.dma_resource[ndma].end = simple_strtoul(buf,&buf,0);
-                               dev->res.dma_resource[ndma].flags = IORESOURCE_DMA;
-                               ndma++;
-                               if (ndma >= PNP_MAX_DMA)
-                                       break;
+                       if (!strnicmp(buf, "dma", 3)) {
+                               buf = skip_spaces(buf + 3);
+                               start = simple_strtoul(buf, &buf, 0);
+                               pnp_add_dma_resource(dev, start, 0);
                                continue;
                        }
                        break;
                }
-               up(&pnp_res_mutex);
+               mutex_unlock(&pnp_res_mutex);
                goto done;
        }
- done:
+
+done:
        if (retval < 0)
                return retval;
        return count;
 }
 
-static DEVICE_ATTR(resources,S_IRUGO | S_IWUSR,
-                  pnp_show_current_resources,pnp_set_current_resources);
-
-static ssize_t pnp_show_current_ids(struct device *dmdev, char *buf)
+static ssize_t pnp_show_current_ids(struct device *dmdev,
+                                   struct device_attribute *attr, char *buf)
 {
        char *str = buf;
        struct pnp_dev *dev = to_pnp_dev(dmdev);
-       struct pnp_id * pos = dev->id;
+       struct pnp_id *pos = dev->id;
 
        while (pos) {
-               str += sprintf(str,"%s\n", pos->id);
+               str += sprintf(str, "%s\n", pos->id);
                pos = pos->next;
        }
        return (str - buf);
 }
 
-static DEVICE_ATTR(id,S_IRUGO,pnp_show_current_ids,NULL);
-
-int pnp_interface_attach_device(struct pnp_dev *dev)
-{
-       device_create_file(&dev->dev,&dev_attr_options);
-       device_create_file(&dev->dev,&dev_attr_resources);
-       device_create_file(&dev->dev,&dev_attr_id);
-       return 0;
-}
+struct device_attribute pnp_interface_attrs[] = {
+       __ATTR(resources, S_IRUGO | S_IWUSR,
+                  pnp_show_current_resources,
+                  pnp_set_current_resources),
+       __ATTR(options, S_IRUGO, pnp_show_options, NULL),
+       __ATTR(id, S_IRUGO, pnp_show_current_ids, NULL),
+       __ATTR_NULL,
+};