480 lines
12 KiB
C
480 lines
12 KiB
C
/*
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* interface.c - contains everything related to the user interface
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*
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* Some code, especially possible resource dumping is based on isapnp_proc.c (c) Jaroslav Kysela <perex@suse.cz>
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* Copyright 2002 Adam Belay <ambx1@neo.rr.com>
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*
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*/
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#include <linux/pnp.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/list.h>
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#include <linux/types.h>
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#include <linux/stat.h>
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#include <linux/ctype.h>
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#include <linux/slab.h>
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#include <asm/uaccess.h>
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#include "base.h"
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struct pnp_info_buffer {
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char *buffer; /* pointer to begin of buffer */
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char *curr; /* current position in buffer */
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unsigned long size; /* current size */
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unsigned long len; /* total length of buffer */
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int stop; /* stop flag */
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int error; /* error code */
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};
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typedef struct pnp_info_buffer pnp_info_buffer_t;
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static int pnp_printf(pnp_info_buffer_t * buffer, char *fmt,...)
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{
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va_list args;
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int res;
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if (buffer->stop || buffer->error)
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return 0;
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va_start(args, fmt);
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res = vsnprintf(buffer->curr, buffer->len - buffer->size, fmt, args);
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va_end(args);
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if (buffer->size + res >= buffer->len) {
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buffer->stop = 1;
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return 0;
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}
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buffer->curr += res;
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buffer->size += res;
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return res;
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}
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static void pnp_print_port(pnp_info_buffer_t *buffer, char *space, struct pnp_port *port)
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{
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pnp_printf(buffer, "%sport 0x%x-0x%x, align 0x%x, size 0x%x, %i-bit address decoding\n",
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space, port->min, port->max, port->align ? (port->align-1) : 0, port->size,
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port->flags & PNP_PORT_FLAG_16BITADDR ? 16 : 10);
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}
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static void pnp_print_irq(pnp_info_buffer_t *buffer, char *space, struct pnp_irq *irq)
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{
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int first = 1, i;
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pnp_printf(buffer, "%sirq ", space);
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for (i = 0; i < PNP_IRQ_NR; i++)
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if (test_bit(i, irq->map)) {
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if (!first) {
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pnp_printf(buffer, ",");
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} else {
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first = 0;
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}
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if (i == 2 || i == 9)
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pnp_printf(buffer, "2/9");
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else
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pnp_printf(buffer, "%i", i);
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}
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if (bitmap_empty(irq->map, PNP_IRQ_NR))
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pnp_printf(buffer, "<none>");
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if (irq->flags & IORESOURCE_IRQ_HIGHEDGE)
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pnp_printf(buffer, " High-Edge");
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if (irq->flags & IORESOURCE_IRQ_LOWEDGE)
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pnp_printf(buffer, " Low-Edge");
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if (irq->flags & IORESOURCE_IRQ_HIGHLEVEL)
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pnp_printf(buffer, " High-Level");
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if (irq->flags & IORESOURCE_IRQ_LOWLEVEL)
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pnp_printf(buffer, " Low-Level");
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pnp_printf(buffer, "\n");
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}
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static void pnp_print_dma(pnp_info_buffer_t *buffer, char *space, struct pnp_dma *dma)
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{
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int first = 1, i;
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char *s;
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pnp_printf(buffer, "%sdma ", space);
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for (i = 0; i < 8; i++)
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if (dma->map & (1<<i)) {
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if (!first) {
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pnp_printf(buffer, ",");
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} else {
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first = 0;
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}
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pnp_printf(buffer, "%i", i);
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}
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if (!dma->map)
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pnp_printf(buffer, "<none>");
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switch (dma->flags & IORESOURCE_DMA_TYPE_MASK) {
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case IORESOURCE_DMA_8BIT:
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s = "8-bit";
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break;
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case IORESOURCE_DMA_8AND16BIT:
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s = "8-bit&16-bit";
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break;
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default:
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s = "16-bit";
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}
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pnp_printf(buffer, " %s", s);
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if (dma->flags & IORESOURCE_DMA_MASTER)
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pnp_printf(buffer, " master");
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if (dma->flags & IORESOURCE_DMA_BYTE)
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pnp_printf(buffer, " byte-count");
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if (dma->flags & IORESOURCE_DMA_WORD)
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pnp_printf(buffer, " word-count");
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switch (dma->flags & IORESOURCE_DMA_SPEED_MASK) {
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case IORESOURCE_DMA_TYPEA:
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s = "type-A";
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break;
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case IORESOURCE_DMA_TYPEB:
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s = "type-B";
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break;
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case IORESOURCE_DMA_TYPEF:
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s = "type-F";
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break;
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default:
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s = "compatible";
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break;
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}
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pnp_printf(buffer, " %s\n", s);
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}
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static void pnp_print_mem(pnp_info_buffer_t *buffer, char *space, struct pnp_mem *mem)
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{
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char *s;
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pnp_printf(buffer, "%sMemory 0x%x-0x%x, align 0x%x, size 0x%x",
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space, mem->min, mem->max, mem->align, mem->size);
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if (mem->flags & IORESOURCE_MEM_WRITEABLE)
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pnp_printf(buffer, ", writeable");
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if (mem->flags & IORESOURCE_MEM_CACHEABLE)
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pnp_printf(buffer, ", cacheable");
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if (mem->flags & IORESOURCE_MEM_RANGELENGTH)
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pnp_printf(buffer, ", range-length");
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if (mem->flags & IORESOURCE_MEM_SHADOWABLE)
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pnp_printf(buffer, ", shadowable");
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if (mem->flags & IORESOURCE_MEM_EXPANSIONROM)
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pnp_printf(buffer, ", expansion ROM");
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switch (mem->flags & IORESOURCE_MEM_TYPE_MASK) {
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case IORESOURCE_MEM_8BIT:
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s = "8-bit";
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break;
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case IORESOURCE_MEM_8AND16BIT:
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s = "8-bit&16-bit";
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break;
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case IORESOURCE_MEM_32BIT:
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s = "32-bit";
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break;
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default:
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s = "16-bit";
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}
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pnp_printf(buffer, ", %s\n", s);
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}
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static void pnp_print_option(pnp_info_buffer_t *buffer, char *space,
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struct pnp_option *option, int dep)
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{
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char *s;
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struct pnp_port *port;
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struct pnp_irq *irq;
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struct pnp_dma *dma;
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struct pnp_mem *mem;
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if (dep) {
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switch (option->priority) {
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case PNP_RES_PRIORITY_PREFERRED:
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s = "preferred";
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break;
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case PNP_RES_PRIORITY_ACCEPTABLE:
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s = "acceptable";
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break;
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case PNP_RES_PRIORITY_FUNCTIONAL:
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s = "functional";
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break;
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default:
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s = "invalid";
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}
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pnp_printf(buffer, "Dependent: %02i - Priority %s\n",dep, s);
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}
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for (port = option->port; port; port = port->next)
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pnp_print_port(buffer, space, port);
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for (irq = option->irq; irq; irq = irq->next)
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pnp_print_irq(buffer, space, irq);
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for (dma = option->dma; dma; dma = dma->next)
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pnp_print_dma(buffer, space, dma);
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for (mem = option->mem; mem; mem = mem->next)
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pnp_print_mem(buffer, space, mem);
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}
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static ssize_t pnp_show_options(struct device *dmdev, struct device_attribute *attr, char *buf)
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{
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struct pnp_dev *dev = to_pnp_dev(dmdev);
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struct pnp_option * independent = dev->independent;
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struct pnp_option * dependent = dev->dependent;
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int ret, dep = 1;
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pnp_info_buffer_t *buffer = (pnp_info_buffer_t *)
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pnp_alloc(sizeof(pnp_info_buffer_t));
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if (!buffer)
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return -ENOMEM;
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buffer->len = PAGE_SIZE;
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buffer->buffer = buf;
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buffer->curr = buffer->buffer;
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if (independent)
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pnp_print_option(buffer, "", independent, 0);
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while (dependent){
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pnp_print_option(buffer, " ", dependent, dep);
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dependent = dependent->next;
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dep++;
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}
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ret = (buffer->curr - buf);
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kfree(buffer);
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return ret;
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}
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static DEVICE_ATTR(options,S_IRUGO,pnp_show_options,NULL);
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static ssize_t pnp_show_current_resources(struct device *dmdev, struct device_attribute *attr, char *buf)
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{
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struct pnp_dev *dev = to_pnp_dev(dmdev);
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int i, ret;
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pnp_info_buffer_t *buffer;
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if (!dev)
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return -EINVAL;
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buffer = (pnp_info_buffer_t *) pnp_alloc(sizeof(pnp_info_buffer_t));
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if (!buffer)
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return -ENOMEM;
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buffer->len = PAGE_SIZE;
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buffer->buffer = buf;
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buffer->curr = buffer->buffer;
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pnp_printf(buffer,"state = ");
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if (dev->active)
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pnp_printf(buffer,"active\n");
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else
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pnp_printf(buffer,"disabled\n");
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for (i = 0; i < PNP_MAX_PORT; i++) {
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if (pnp_port_valid(dev, i)) {
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pnp_printf(buffer,"io");
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if (pnp_port_flags(dev, i) & IORESOURCE_DISABLED)
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pnp_printf(buffer," disabled\n");
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else
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pnp_printf(buffer," 0x%llx-0x%llx\n",
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(unsigned long long)pnp_port_start(dev, i),
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(unsigned long long)pnp_port_end(dev, i));
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}
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}
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for (i = 0; i < PNP_MAX_MEM; i++) {
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if (pnp_mem_valid(dev, i)) {
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pnp_printf(buffer,"mem");
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if (pnp_mem_flags(dev, i) & IORESOURCE_DISABLED)
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pnp_printf(buffer," disabled\n");
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else
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pnp_printf(buffer," 0x%llx-0x%llx\n",
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(unsigned long long)pnp_mem_start(dev, i),
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(unsigned long long)pnp_mem_end(dev, i));
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}
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}
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for (i = 0; i < PNP_MAX_IRQ; i++) {
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if (pnp_irq_valid(dev, i)) {
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pnp_printf(buffer,"irq");
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if (pnp_irq_flags(dev, i) & IORESOURCE_DISABLED)
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pnp_printf(buffer," disabled\n");
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else
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pnp_printf(buffer," %lld\n",
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(unsigned long long)pnp_irq(dev, i));
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}
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}
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for (i = 0; i < PNP_MAX_DMA; i++) {
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if (pnp_dma_valid(dev, i)) {
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pnp_printf(buffer,"dma");
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if (pnp_dma_flags(dev, i) & IORESOURCE_DISABLED)
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pnp_printf(buffer," disabled\n");
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else
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pnp_printf(buffer," %lld\n",
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(unsigned long long)pnp_dma(dev, i));
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}
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}
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ret = (buffer->curr - buf);
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kfree(buffer);
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return ret;
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}
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extern struct semaphore pnp_res_mutex;
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static ssize_t
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pnp_set_current_resources(struct device * dmdev, struct device_attribute *attr, const char * ubuf, size_t count)
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{
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struct pnp_dev *dev = to_pnp_dev(dmdev);
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char *buf = (void *)ubuf;
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int retval = 0;
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if (dev->status & PNP_ATTACHED) {
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retval = -EBUSY;
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pnp_info("Device %s cannot be configured because it is in use.", dev->dev.bus_id);
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goto done;
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}
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while (isspace(*buf))
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++buf;
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if (!strnicmp(buf,"disable",7)) {
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retval = pnp_disable_dev(dev);
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goto done;
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}
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if (!strnicmp(buf,"activate",8)) {
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retval = pnp_activate_dev(dev);
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goto done;
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}
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if (!strnicmp(buf,"fill",4)) {
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if (dev->active)
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goto done;
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retval = pnp_auto_config_dev(dev);
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goto done;
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}
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if (!strnicmp(buf,"auto",4)) {
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if (dev->active)
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goto done;
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pnp_init_resource_table(&dev->res);
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retval = pnp_auto_config_dev(dev);
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goto done;
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}
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if (!strnicmp(buf,"clear",5)) {
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if (dev->active)
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goto done;
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pnp_init_resource_table(&dev->res);
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goto done;
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}
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if (!strnicmp(buf,"get",3)) {
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down(&pnp_res_mutex);
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if (pnp_can_read(dev))
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dev->protocol->get(dev, &dev->res);
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up(&pnp_res_mutex);
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goto done;
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}
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if (!strnicmp(buf,"set",3)) {
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int nport = 0, nmem = 0, nirq = 0, ndma = 0;
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if (dev->active)
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goto done;
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buf += 3;
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pnp_init_resource_table(&dev->res);
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down(&pnp_res_mutex);
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while (1) {
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while (isspace(*buf))
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++buf;
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if (!strnicmp(buf,"io",2)) {
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buf += 2;
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while (isspace(*buf))
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++buf;
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dev->res.port_resource[nport].start = simple_strtoul(buf,&buf,0);
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while (isspace(*buf))
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++buf;
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if(*buf == '-') {
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buf += 1;
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while (isspace(*buf))
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++buf;
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dev->res.port_resource[nport].end = simple_strtoul(buf,&buf,0);
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} else
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dev->res.port_resource[nport].end = dev->res.port_resource[nport].start;
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dev->res.port_resource[nport].flags = IORESOURCE_IO;
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nport++;
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if (nport >= PNP_MAX_PORT)
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break;
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continue;
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}
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if (!strnicmp(buf,"mem",3)) {
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buf += 3;
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while (isspace(*buf))
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++buf;
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dev->res.mem_resource[nmem].start = simple_strtoul(buf,&buf,0);
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while (isspace(*buf))
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++buf;
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if(*buf == '-') {
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buf += 1;
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while (isspace(*buf))
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++buf;
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dev->res.mem_resource[nmem].end = simple_strtoul(buf,&buf,0);
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} else
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dev->res.mem_resource[nmem].end = dev->res.mem_resource[nmem].start;
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dev->res.mem_resource[nmem].flags = IORESOURCE_MEM;
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nmem++;
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if (nmem >= PNP_MAX_MEM)
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break;
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continue;
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}
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if (!strnicmp(buf,"irq",3)) {
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buf += 3;
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while (isspace(*buf))
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++buf;
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dev->res.irq_resource[nirq].start =
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dev->res.irq_resource[nirq].end = simple_strtoul(buf,&buf,0);
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dev->res.irq_resource[nirq].flags = IORESOURCE_IRQ;
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nirq++;
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if (nirq >= PNP_MAX_IRQ)
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break;
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continue;
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}
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if (!strnicmp(buf,"dma",3)) {
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buf += 3;
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while (isspace(*buf))
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++buf;
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dev->res.dma_resource[ndma].start =
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dev->res.dma_resource[ndma].end = simple_strtoul(buf,&buf,0);
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dev->res.dma_resource[ndma].flags = IORESOURCE_DMA;
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ndma++;
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if (ndma >= PNP_MAX_DMA)
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break;
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continue;
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}
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break;
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}
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up(&pnp_res_mutex);
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goto done;
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}
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done:
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if (retval < 0)
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return retval;
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return count;
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}
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static DEVICE_ATTR(resources,S_IRUGO | S_IWUSR,
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pnp_show_current_resources,pnp_set_current_resources);
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static ssize_t pnp_show_current_ids(struct device *dmdev, struct device_attribute *attr, char *buf)
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{
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char *str = buf;
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struct pnp_dev *dev = to_pnp_dev(dmdev);
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struct pnp_id * pos = dev->id;
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while (pos) {
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str += sprintf(str,"%s\n", pos->id);
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pos = pos->next;
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}
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return (str - buf);
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}
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static DEVICE_ATTR(id,S_IRUGO,pnp_show_current_ids,NULL);
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int pnp_interface_attach_device(struct pnp_dev *dev)
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{
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int rc = device_create_file(&dev->dev,&dev_attr_options);
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if (rc) goto err;
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rc = device_create_file(&dev->dev,&dev_attr_resources);
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if (rc) goto err_opt;
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rc = device_create_file(&dev->dev,&dev_attr_id);
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if (rc) goto err_res;
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return 0;
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err_res:
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device_remove_file(&dev->dev,&dev_attr_resources);
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err_opt:
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device_remove_file(&dev->dev,&dev_attr_options);
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err:
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return rc;
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}
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