diff options
author | David S. Miller <davem@davemloft.net> | 2008-07-18 02:39:39 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-07-18 02:39:39 -0700 |
commit | 49997d75152b3d23c53b0fa730599f2f74c92c65 (patch) | |
tree | 46e93126170d02cfec9505172e545732c1b69656 /drivers/pnp/support.c | |
parent | a0c80b80e0fb48129e4e9d6a9ede914f9ff1850d (diff) | |
parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
Documentation/powerpc/booting-without-of.txt
drivers/atm/Makefile
drivers/net/fs_enet/fs_enet-main.c
drivers/pci/pci-acpi.c
net/8021q/vlan.c
net/iucv/iucv.c
Diffstat (limited to 'drivers/pnp/support.c')
-rw-r--r-- | drivers/pnp/support.c | 171 |
1 files changed, 146 insertions, 25 deletions
diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c index 95b076c18c0..bbf78ef4ba0 100644 --- a/drivers/pnp/support.c +++ b/drivers/pnp/support.c @@ -2,6 +2,8 @@ * support.c - standard functions for the use of pnp protocol drivers * * Copyright 2003 Adam Belay <ambx1@neo.rr.com> + * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. + * Bjorn Helgaas <bjorn.helgaas@hp.com> */ #include <linux/module.h> @@ -16,6 +18,10 @@ */ int pnp_is_active(struct pnp_dev *dev) { + /* + * I don't think this is very reliable because pnp_disable_dev() + * only clears out auto-assigned resources. + */ if (!pnp_port_start(dev, 0) && pnp_port_len(dev, 0) <= 1 && !pnp_mem_start(dev, 0) && pnp_mem_len(dev, 0) <= 1 && pnp_irq(dev, 0) == -1 && pnp_dma(dev, 0) == -1) @@ -52,39 +58,154 @@ void pnp_eisa_id_to_string(u32 id, char *str) str[7] = '\0'; } +char *pnp_resource_type_name(struct resource *res) +{ + switch (pnp_resource_type(res)) { + case IORESOURCE_IO: + return "io"; + case IORESOURCE_MEM: + return "mem"; + case IORESOURCE_IRQ: + return "irq"; + case IORESOURCE_DMA: + return "dma"; + } + return NULL; +} + void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc) { #ifdef DEBUG + char buf[128]; + int len = 0; + struct pnp_resource *pnp_res; struct resource *res; - int i; - dev_dbg(&dev->dev, "current resources: %s\n", desc); - - for (i = 0; i < PNP_MAX_IRQ; i++) { - res = pnp_get_resource(dev, IORESOURCE_IRQ, i); - if (res && !(res->flags & IORESOURCE_UNSET)) - dev_dbg(&dev->dev, " irq %lld flags %#lx\n", - (unsigned long long) res->start, res->flags); + if (list_empty(&dev->resources)) { + dev_dbg(&dev->dev, "%s: no current resources\n", desc); + return; } - for (i = 0; i < PNP_MAX_DMA; i++) { - res = pnp_get_resource(dev, IORESOURCE_DMA, i); - if (res && !(res->flags & IORESOURCE_UNSET)) - dev_dbg(&dev->dev, " dma %lld flags %#lx\n", - (unsigned long long) res->start, res->flags); + + dev_dbg(&dev->dev, "%s: current resources:\n", desc); + list_for_each_entry(pnp_res, &dev->resources, list) { + res = &pnp_res->res; + + len += snprintf(buf + len, sizeof(buf) - len, " %-3s ", + pnp_resource_type_name(res)); + + if (res->flags & IORESOURCE_DISABLED) { + dev_dbg(&dev->dev, "%sdisabled\n", buf); + continue; + } + + switch (pnp_resource_type(res)) { + case IORESOURCE_IO: + case IORESOURCE_MEM: + len += snprintf(buf + len, sizeof(buf) - len, + "%#llx-%#llx flags %#lx", + (unsigned long long) res->start, + (unsigned long long) res->end, + res->flags); + break; + case IORESOURCE_IRQ: + case IORESOURCE_DMA: + len += snprintf(buf + len, sizeof(buf) - len, + "%lld flags %#lx", + (unsigned long long) res->start, + res->flags); + break; + } + dev_dbg(&dev->dev, "%s\n", buf); } - for (i = 0; i < PNP_MAX_PORT; i++) { - res = pnp_get_resource(dev, IORESOURCE_IO, i); - if (res && !(res->flags & IORESOURCE_UNSET)) - dev_dbg(&dev->dev, " io %#llx-%#llx flags %#lx\n", - (unsigned long long) res->start, - (unsigned long long) res->end, res->flags); +#endif +} + +char *pnp_option_priority_name(struct pnp_option *option) +{ + switch (pnp_option_priority(option)) { + case PNP_RES_PRIORITY_PREFERRED: + return "preferred"; + case PNP_RES_PRIORITY_ACCEPTABLE: + return "acceptable"; + case PNP_RES_PRIORITY_FUNCTIONAL: + return "functional"; } - for (i = 0; i < PNP_MAX_MEM; i++) { - res = pnp_get_resource(dev, IORESOURCE_MEM, i); - if (res && !(res->flags & IORESOURCE_UNSET)) - dev_dbg(&dev->dev, " mem %#llx-%#llx flags %#lx\n", - (unsigned long long) res->start, - (unsigned long long) res->end, res->flags); + return "invalid"; +} + +void dbg_pnp_show_option(struct pnp_dev *dev, struct pnp_option *option) +{ +#ifdef DEBUG + char buf[128]; + int len = 0, i; + struct pnp_port *port; + struct pnp_mem *mem; + struct pnp_irq *irq; + struct pnp_dma *dma; + + if (pnp_option_is_dependent(option)) + len += snprintf(buf + len, sizeof(buf) - len, + " dependent set %d (%s) ", + pnp_option_set(option), + pnp_option_priority_name(option)); + else + len += snprintf(buf + len, sizeof(buf) - len, " independent "); + + switch (option->type) { + case IORESOURCE_IO: + port = &option->u.port; + len += snprintf(buf + len, sizeof(buf) - len, "io min %#llx " + "max %#llx align %lld size %lld flags %#x", + (unsigned long long) port->min, + (unsigned long long) port->max, + (unsigned long long) port->align, + (unsigned long long) port->size, port->flags); + break; + case IORESOURCE_MEM: + mem = &option->u.mem; + len += snprintf(buf + len, sizeof(buf) - len, "mem min %#llx " + "max %#llx align %lld size %lld flags %#x", + (unsigned long long) mem->min, + (unsigned long long) mem->max, + (unsigned long long) mem->align, + (unsigned long long) mem->size, mem->flags); + break; + case IORESOURCE_IRQ: + irq = &option->u.irq; + len += snprintf(buf + len, sizeof(buf) - len, "irq"); + if (bitmap_empty(irq->map.bits, PNP_IRQ_NR)) + len += snprintf(buf + len, sizeof(buf) - len, + " <none>"); + else { + for (i = 0; i < PNP_IRQ_NR; i++) + if (test_bit(i, irq->map.bits)) + len += snprintf(buf + len, + sizeof(buf) - len, + " %d", i); + } + len += snprintf(buf + len, sizeof(buf) - len, " flags %#x", + irq->flags); + if (irq->flags & IORESOURCE_IRQ_OPTIONAL) + len += snprintf(buf + len, sizeof(buf) - len, + " (optional)"); + break; + case IORESOURCE_DMA: + dma = &option->u.dma; + len += snprintf(buf + len, sizeof(buf) - len, "dma"); + if (!dma->map) + len += snprintf(buf + len, sizeof(buf) - len, + " <none>"); + else { + for (i = 0; i < 8; i++) + if (dma->map & (1 << i)) + len += snprintf(buf + len, + sizeof(buf) - len, + " %d", i); + } + len += snprintf(buf + len, sizeof(buf) - len, " (bitmask %#x) " + "flags %#x", dma->map, dma->flags); + break; } + dev_dbg(&dev->dev, "%s\n", buf); #endif } |