/* * 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, 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 = (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, struct device_attribute *attr, 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%llx-0x%llx\n", (unsigned long long)pnp_port_start(dev, i), (unsigned long long)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%llx-0x%llx\n", (unsigned long long)pnp_mem_start(dev, i), (unsigned long long)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," %lld\n", (unsigned long long)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," %lld\n", (unsigned long long)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, 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; 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, struct device_attribute *attr, 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) { int rc = device_create_file(&dev->dev,&dev_attr_options); if (rc) goto err; rc = device_create_file(&dev->dev,&dev_attr_resources); if (rc) goto err_opt; rc = device_create_file(&dev->dev,&dev_attr_id); if (rc) goto err_res; return 0; err_res: device_remove_file(&dev->dev,&dev_attr_resources); err_opt: device_remove_file(&dev->dev,&dev_attr_options); err: return rc; }