Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 468 insertions, 0 deletions

diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
new file mode 100644
index 000000000000..53fac8ba5d5c
--- /dev/null
+++ b/drivers/pnp/interface.c
@@ -0,0 +1,468 @@
+/*
+ * 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>
+ * Copyright 2002 Adam Belay <ambx1@neo.rr.com>
+ *
+ */
+
+#include <linux/pnp.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/stat.h>
+#include <linux/ctype.h>
+#include <linux/slab.h>
+#include <asm/uaccess.h>
+
+#include "base.h"
+
+struct pnp_info_buffer {
+	char *buffer;		/* pointer to begin of buffer */
+	char *curr;		/* current position in buffer */
+	unsigned long size;	/* current size */
+	unsigned long len;	/* total length of buffer */
+	int stop;		/* stop flag */
+	int error;		/* error code */
+};
+
+typedef struct pnp_info_buffer pnp_info_buffer_t;
+
+static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt,...)
+{
+	va_list args;
+	int res;
+
+	if (buffer->stop || buffer->error)
+		return 0;
+	va_start(args, fmt);
+	res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args);
+	va_end(args);
+	if (buffer->size + res >= buffer->len) {
+		buffer->stop = 1;
+		return 0;
+	}
+	buffer->curr += res;
+	buffer->size += res;
+	return res;
+}
+
+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);
+}
+
+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 (!first) {
+				pnp_printf(buffer, ",");
+			} else {
+				first = 0;
+			}
+			if (i == 2 || i == 9)
+				pnp_printf(buffer, "2/9");
+			else
+				pnp_printf(buffer, "%i", i);
+		}
+	if (bitmap_empty(irq->map, PNP_IRQ_NR))
+		pnp_printf(buffer, "<none>");
+	if (irq->flags & IORESOURCE_IRQ_HIGHEDGE)
+		pnp_printf(buffer, " High-Edge");
+	if (irq->flags & IORESOURCE_IRQ_LOWEDGE)
+		pnp_printf(buffer, " Low-Edge");
+	if (irq->flags & IORESOURCE_IRQ_HIGHLEVEL)
+		pnp_printf(buffer, " High-Level");
+	if (irq->flags & IORESOURCE_IRQ_LOWLEVEL)
+		pnp_printf(buffer, " Low-Level");
+	pnp_printf(buffer, "\n");
+}
+
+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 (!first) {
+				pnp_printf(buffer, ",");
+			} else {
+				first = 0;
+			}
+			pnp_printf(buffer, "%i", i);
+		}
+	if (!dma->map)
+		pnp_printf(buffer, "<none>");
+	switch (dma->flags & IORESOURCE_DMA_TYPE_MASK) {
+	case IORESOURCE_DMA_8BIT:
+		s = "8-bit";
+		break;
+	case IORESOURCE_DMA_8AND16BIT:
+		s = "8-bit&16-bit";
+		break;
+	default:
+		s = "16-bit";
+	}
+	pnp_printf(buffer, " %s", s);
+	if (dma->flags & IORESOURCE_DMA_MASTER)
+		pnp_printf(buffer, " master");
+	if (dma->flags & IORESOURCE_DMA_BYTE)
+		pnp_printf(buffer, " byte-count");
+	if (dma->flags & IORESOURCE_DMA_WORD)
+		pnp_printf(buffer, " word-count");
+	switch (dma->flags & IORESOURCE_DMA_SPEED_MASK) {
+	case IORESOURCE_DMA_TYPEA:
+		s = "type-A";
+		break;
+	case IORESOURCE_DMA_TYPEB:
+		s = "type-B";
+		break;
+	case IORESOURCE_DMA_TYPEF:
+		s = "type-F";
+		break;
+	default:
+		s = "compatible";
+		break;
+	}
+	pnp_printf(buffer, " %s\n", s);
+}
+
+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);
+	if (mem->flags & IORESOURCE_MEM_WRITEABLE)
+		pnp_printf(buffer, ", writeable");
+	if (mem->flags & IORESOURCE_MEM_CACHEABLE)
+		pnp_printf(buffer, ", cacheable");
+	if (mem->flags & IORESOURCE_MEM_RANGELENGTH)
+		pnp_printf(buffer, ", range-length");
+	if (mem->flags & IORESOURCE_MEM_SHADOWABLE)
+		pnp_printf(buffer, ", shadowable");
+	if (mem->flags & IORESOURCE_MEM_EXPANSIONROM)
+		pnp_printf(buffer, ", expansion ROM");
+	switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) {
+	case IORESOURCE_MEM_8BIT:
+		s = "8-bit";
+		break;
+	case IORESOURCE_MEM_8AND16BIT:
+		s = "8-bit&16-bit";
+		break;
+	case IORESOURCE_MEM_32BIT:
+		s = "32-bit";
+		break;
+	default:
+		s = "16-bit";
+	}
+	pnp_printf(buffer, ", %s\n", s);
+}
+
+static void pnp_print_option(pnp_info_buffer_t *buffer, char *space,
+			     struct pnp_option *option, int dep)
+{
+	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);
+	}
+
+	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)
+{
+	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 = (pnp_info_buffer_t *)
+				 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++;
+	}
+	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)
+{
+	struct pnp_dev *dev = to_pnp_dev(dmdev);
+	int i, ret;
+	pnp_info_buffer_t *buffer;
+
+	if (!dev)
+		return -EINVAL;
+
+	buffer = (pnp_info_buffer_t *) 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));
+		}
+	}
+	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));
+		}
+	}
+	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)
+{
+	struct pnp_dev *dev = to_pnp_dev(dmdev);
+	char	*buf = (void *)ubuf;
+	int	retval = 0;
+
+	if (dev->status & PNP_ATTACHED) {
+		retval = -EBUSY;
+		pnp_info("Device %s cannot be configured because it is in use.", dev->dev.bus_id);
+		goto done;
+	}
+
+	while (isspace(*buf))
+		++buf;
+	if (!strnicmp(buf,"disable",7)) {
+		retval = pnp_disable_dev(dev);
+		goto done;
+	}
+	if (!strnicmp(buf,"activate",8)) {
+		retval = pnp_activate_dev(dev);
+		goto done;
+	}
+	if (!strnicmp(buf,"fill",4)) {
+		if (dev->active)
+			goto done;
+		retval = pnp_auto_config_dev(dev);
+		goto done;
+	}
+	if (!strnicmp(buf,"auto",4)) {
+		if (dev->active)
+			goto done;
+		pnp_init_resource_table(&dev->res);
+		retval = pnp_auto_config_dev(dev);
+		goto done;
+	}
+	if (!strnicmp(buf,"clear",5)) {
+		if (dev->active)
+			goto done;
+		pnp_init_resource_table(&dev->res);
+		goto done;
+	}
+	if (!strnicmp(buf,"get",3)) {
+		down(&pnp_res_mutex);
+		if (pnp_can_read(dev))
+			dev->protocol->get(dev, &dev->res);
+		up(&pnp_res_mutex);
+		goto done;
+	}
+	if (!strnicmp(buf,"set",3)) {
+		int nport = 0, nmem = 0, nirq = 0, ndma = 0;
+		if (dev->active)
+			goto done;
+		buf += 3;
+		pnp_init_resource_table(&dev->res);
+		down(&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);
+				} 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;
+				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);
+				} 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;
+				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;
+				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;
+				continue;
+			}
+			break;
+		}
+		up(&pnp_res_mutex);
+		goto 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)
+{
+	char *str = buf;
+	struct pnp_dev *dev = to_pnp_dev(dmdev);
+	struct pnp_id * pos = dev->id;
+
+	while (pos) {
+		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;
+}