diff options
author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2008-04-28 22:34:36 (GMT) |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2008-04-29 07:22:29 (GMT) |
commit | cc8c2e308194f0997c718c7c735550ff06754d20 (patch) | |
tree | 1464d278291fd285653ff026f62c5f4f6d75286c /drivers/pnp | |
parent | dc16f5f2ede8cc2acf8ac22857a7fecf3a4296c2 (diff) | |
download | linux-fsl-qoriq-cc8c2e308194f0997c718c7c735550ff06754d20.tar.xz |
PNP: make generic pnp_add_io_resource()
Add a pnp_add_io_resource() that can be used by all the PNP
backends. This consolidates a little more pnp_resource_table
knowledge into one place.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/pnp')
-rw-r--r-- | drivers/pnp/base.h | 3 | ||||
-rw-r--r-- | drivers/pnp/interface.c | 20 | ||||
-rw-r--r-- | drivers/pnp/isapnp/core.c | 8 | ||||
-rw-r--r-- | drivers/pnp/pnpacpi/rsparser.c | 35 | ||||
-rw-r--r-- | drivers/pnp/pnpbios/rsparser.c | 23 | ||||
-rw-r--r-- | drivers/pnp/resource.c | 29 |
6 files changed, 59 insertions, 59 deletions
diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h index b6719b3..bfb08ab 100644 --- a/drivers/pnp/base.h +++ b/drivers/pnp/base.h @@ -45,3 +45,6 @@ struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq, int flags); struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma, int flags); +struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev, + resource_size_t start, + resource_size_t end, int flags); diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c index 00c8a97..77d8bf0 100644 --- a/drivers/pnp/interface.c +++ b/drivers/pnp/interface.c @@ -324,7 +324,7 @@ pnp_set_current_resources(struct device *dmdev, struct device_attribute *attr, struct resource *res; char *buf = (void *)ubuf; int retval = 0; - resource_size_t start; + resource_size_t start, end; if (dev->status & PNP_ATTACHED) { retval = -EBUSY; @@ -382,24 +382,20 @@ pnp_set_current_resources(struct device *dmdev, struct device_attribute *attr, buf += 2; while (isspace(*buf)) ++buf; - pnp_res = pnp_get_pnp_resource(dev, - IORESOURCE_IO, nport); - if (!pnp_res) - break; - pnp_res->index = nport; - res = &pnp_res->res; - res->start = simple_strtoul(buf, &buf, 0); + 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); + end = simple_strtoul(buf, &buf, 0); } else - res->end = res->start; - res->flags = IORESOURCE_IO; - nport++; + end = start; + pnp_res = pnp_add_io_resource(dev, start, end, + 0); + if (pnp_res) + pnp_res->index = nport++; continue; } if (!strnicmp(buf, "mem", 3)) { diff --git a/drivers/pnp/isapnp/core.c b/drivers/pnp/isapnp/core.c index 2e5e58c..bdd8508 100644 --- a/drivers/pnp/isapnp/core.c +++ b/drivers/pnp/isapnp/core.c @@ -941,11 +941,9 @@ static int isapnp_read_resources(struct pnp_dev *dev) ret = isapnp_read_word(ISAPNP_CFG_PORT + (tmp << 1)); if (!ret) continue; - pnp_res = pnp_get_pnp_resource(dev, IORESOURCE_IO, tmp); - pnp_res->index = tmp; - res = &pnp_res->res; - res->start = ret; - res->flags = IORESOURCE_IO; + pnp_res = pnp_add_io_resource(dev, ret, ret, 0); + if (pnp_res) + pnp_res->index = tmp; } for (tmp = 0; tmp < ISAPNP_MAX_MEM; tmp++) { ret = diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c index fc7cf73..d3ca8e0 100644 --- a/drivers/pnp/pnpacpi/rsparser.c +++ b/drivers/pnp/pnpacpi/rsparser.c @@ -158,33 +158,18 @@ static int dma_flags(int type, int bus_master, int transfer) return flags; } -static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, - u64 io, u64 len, int io_decode) +static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start, + u64 len, int io_decode) { - struct resource *res; - int i; - static unsigned char warned; + int flags = 0; + u64 end = start + len - 1; - for (i = 0; i < PNP_MAX_PORT; i++) { - res = pnp_get_resource(dev, IORESOURCE_IO, i); - if (!pnp_resource_valid(res)) - break; - } - if (i < PNP_MAX_PORT) { - res->flags = IORESOURCE_IO; // Also clears _UNSET flag - if (io_decode == ACPI_DECODE_16) - res->flags |= PNP_PORT_FLAG_16BITADDR; - if (len <= 0 || (io + len - 1) >= 0x10003) { - res->flags |= IORESOURCE_DISABLED; - return; - } - res->start = io; - res->end = io + len - 1; - } else if (!warned) { - printk(KERN_WARNING "pnpacpi: exceeded the max number of IO " - "resources: %d \n", PNP_MAX_PORT); - warned = 1; - } + if (io_decode == ACPI_DECODE_16) + flags |= PNP_PORT_FLAG_16BITADDR; + if (len == 0 || end >= 0x10003) + flags |= IORESOURCE_DISABLED; + + pnp_add_io_resource(dev, start, end, flags); } static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev, diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c index 7f8d657..8c83bc1 100644 --- a/drivers/pnp/pnpbios/rsparser.c +++ b/drivers/pnp/pnpbios/rsparser.c @@ -55,26 +55,15 @@ inline void pcibios_penalize_isa_irq(int irq, int active) */ static void pnpbios_parse_allocated_ioresource(struct pnp_dev *dev, - int io, int len) + int start, int len) { - struct resource *res; - int i; + int flags = 0; + int end = start + len - 1; - for (i = 0; i < PNP_MAX_PORT; i++) { - res = pnp_get_resource(dev, IORESOURCE_IO, i); - if (!pnp_resource_valid(res)) - break; - } + if (len <= 0 || end >= 0x10003) + flags |= IORESOURCE_DISABLED; - if (i < PNP_MAX_PORT) { - res->flags = IORESOURCE_IO; // Also clears _UNSET flag - if (len <= 0 || (io + len - 1) >= 0x10003) { - res->flags |= IORESOURCE_DISABLED; - return; - } - res->start = (unsigned long)io; - res->end = (unsigned long)(io + len - 1); - } + pnp_add_io_resource(dev, start, end, flags); } static void pnpbios_parse_allocated_memresource(struct pnp_dev *dev, diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c index 2a8612e..64387b7 100644 --- a/drivers/pnp/resource.c +++ b/drivers/pnp/resource.c @@ -628,6 +628,35 @@ struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma, return pnp_res; } +struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev, + resource_size_t start, + resource_size_t end, int flags) +{ + struct pnp_resource *pnp_res; + struct resource *res; + static unsigned char warned; + + pnp_res = pnp_new_resource(dev, IORESOURCE_IO); + if (!pnp_res) { + if (!warned) { + dev_err(&dev->dev, "can't add resource for IO " + "%#llx-%#llx\n",(unsigned long long) start, + (unsigned long long) end); + warned = 1; + } + return NULL; + } + + res = &pnp_res->res; + res->flags = IORESOURCE_IO | flags; + res->start = start; + res->end = end; + + dev_dbg(&dev->dev, " add io %#llx-%#llx flags %#x\n", + (unsigned long long) start, (unsigned long long) end, flags); + return pnp_res; +} + /* format is: pnp_reserve_irq=irq1[,irq2] .... */ static int __init pnp_setup_reserve_irq(char *str) { |