| /* |
| * 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@perex.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/pnp.h> |
| #include <linux/stat.h> |
| #include <linux/ctype.h> |
| #include <linux/slab.h> |
| #include <linux/mutex.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; |
| } |
| |
| 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); |
| struct resource *res; |
| char *buf = (void *)ubuf; |
| int retval = 0; |
| |
| if (dev->status & PNP_ATTACHED) { |
| retval = -EBUSY; |
| dev_info(&dev->dev, "in use; can't configure\n"); |
| 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_resources(dev); |
| retval = pnp_auto_config_dev(dev); |
| goto done; |
| } |
| if (!strnicmp(buf, "clear", 5)) { |
| if (dev->active) |
| goto done; |
| pnp_init_resources(dev); |
| goto done; |
| } |
| if (!strnicmp(buf, "get", 3)) { |
| mutex_lock(&pnp_res_mutex); |
| if (pnp_can_read(dev)) |
| 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 (dev->active) |
| goto done; |
| buf += 3; |
| 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; |
| res = &dev->res.port_resource[nport]; |
| res->start = simple_strtoul(buf, &buf, 0); |
| while (isspace(*buf)) |
| ++buf; |
| if (*buf == '-') { |
| buf += 1; |
| while (isspace(*buf)) |
| ++buf; |
| res->end = simple_strtoul(buf, &buf, 0); |
| } else |
| res->end = res->start; |
| res->flags = IORESOURCE_IO; |
| nport++; |
| if (nport >= PNP_MAX_PORT) |
| break; |
| continue; |
| } |
| if (!strnicmp(buf, "mem", 3)) { |
| buf += 3; |
| while (isspace(*buf)) |
| ++buf; |
| res = &dev->res.mem_resource[nmem]; |
| res->start = simple_strtoul(buf, &buf, 0); |
| while (isspace(*buf)) |
| ++buf; |
| if (*buf == '-') { |
| buf += 1; |
| while (isspace(*buf)) |
| ++buf; |
| res->end = simple_strtoul(buf, &buf, 0); |
| } else |
| res->end = res->start; |
| res->flags = IORESOURCE_MEM; |
| nmem++; |
| if (nmem >= PNP_MAX_MEM) |
| break; |
| continue; |
| } |
| if (!strnicmp(buf, "irq", 3)) { |
| buf += 3; |
| while (isspace(*buf)) |
| ++buf; |
| res = &dev->res.irq_resource[nirq]; |
| res->start = res->end = |
| simple_strtoul(buf, &buf, 0); |
| res->flags = IORESOURCE_IRQ; |
| nirq++; |
| if (nirq >= PNP_MAX_IRQ) |
| break; |
| continue; |
| } |
| if (!strnicmp(buf, "dma", 3)) { |
| buf += 3; |
| while (isspace(*buf)) |
| ++buf; |
| res = &dev->res.dma_resource[ndma]; |
| res->start = res->end = |
| simple_strtoul(buf, &buf, 0); |
| res->flags = IORESOURCE_DMA; |
| ndma++; |
| if (ndma >= PNP_MAX_DMA) |
| break; |
| continue; |
| } |
| break; |
| } |
| mutex_unlock(&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; |
| } |