Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762145AbYCZRQc (ORCPT ); Wed, 26 Mar 2008 13:16:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757760AbYCZRJT (ORCPT ); Wed, 26 Mar 2008 13:09:19 -0400 Received: from g1t0027.austin.hp.com ([15.216.28.34]:22148 "EHLO g1t0027.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760929AbYCZRJC (ORCPT ); Wed, 26 Mar 2008 13:09:02 -0400 Message-Id: <20080326171227.743839797@ldl.fc.hp.com> References: <20080326171058.099442579@ldl.fc.hp.com> User-Agent: quilt/0.46-1 Date: Wed, 26 Mar 2008 11:11:20 -0600 From: Bjorn Helgaas To: Len Brown Cc: linux-acpi@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Adam Belay Cc: Li Shaohua Cc: Matthieu Castet Cc: Thomas Renninger Cc: Rene Herman Cc: Jaroslav Kysela Cc: Andrew Morton Subject: [patch 22/37] PNP: make generic pnp_add_io_resource() Content-Disposition: inline; filename=pnp-common-add-io-resource Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8405 Lines: 260 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 --- drivers/pnp/base.h | 1 drivers/pnp/interface.c | 20 ++++++------------ drivers/pnp/isapnp/core.c | 3 -- drivers/pnp/pnpacpi/rsparser.c | 45 ++++++----------------------------------- drivers/pnp/pnpbios/rsparser.c | 24 +-------------------- drivers/pnp/resource.c | 24 +++++++++++++++++++++ 6 files changed, 42 insertions(+), 75 deletions(-) Index: work7/drivers/pnp/base.h =================================================================== --- work7.orig/drivers/pnp/base.h 2008-03-25 14:48:54.000000000 -0600 +++ work7/drivers/pnp/base.h 2008-03-25 14:48:57.000000000 -0600 @@ -17,3 +17,4 @@ int pnp_add_irq_resource(struct pnp_dev *dev, int irq, int flags); int pnp_add_dma_resource(struct pnp_dev *dev, int dma, int flags); +int pnp_add_io_resource(struct pnp_dev *dev, resource_size_t start, resource_size_t len, int flags); Index: work7/drivers/pnp/resource.c =================================================================== --- work7.orig/drivers/pnp/resource.c 2008-03-25 14:48:54.000000000 -0600 +++ work7/drivers/pnp/resource.c 2008-03-25 14:48:57.000000000 -0600 @@ -511,6 +511,31 @@ return 0; } +int pnp_add_io_resource(struct pnp_dev *dev, resource_size_t start, resource_size_t len, int flags) +{ + struct pnp_resource_table *res = &dev->res; + resource_size_t end = start + len - 1; + int i = 0; + static unsigned char warned; + + while (set(res->port_resource[i].flags) && i < PNP_MAX_PORT) + i++; + if (i >= PNP_MAX_PORT && !warned) { + dev_err(&dev->dev, "too many PORTs (max %d)\n", PNP_MAX_PORT); + warned = 1; + return -ENOSPC; + } + + res->port_resource[i].flags = IORESOURCE_IO | flags; + if (len <= 0 || end >= 0x10003) { + res->port_resource[i].flags |= IORESOURCE_DISABLED; + return -EINVAL; + } + res->port_resource[i].start = start; + res->port_resource[i].end = end; + return 0; +} + /* format is: pnp_reserve_irq=irq1[,irq2] .... */ static int __init pnp_setup_reserve_irq(char *str) { Index: work7/drivers/pnp/isapnp/core.c =================================================================== --- work7.orig/drivers/pnp/isapnp/core.c 2008-03-25 14:48:54.000000000 -0600 +++ work7/drivers/pnp/isapnp/core.c 2008-03-25 14:48:57.000000000 -0600 @@ -945,8 +945,7 @@ ret = isapnp_read_word(ISAPNP_CFG_PORT + (tmp << 1)); if (!ret) continue; - res->port_resource[tmp].start = ret; - res->port_resource[tmp].flags = IORESOURCE_IO; + pnp_add_io_resource(dev, ret, 1, 0); } for (tmp = 0; tmp < ISAPNP_MAX_MEM; tmp++) { ret = Index: work7/drivers/pnp/pnpacpi/rsparser.c =================================================================== --- work7.orig/drivers/pnp/pnpacpi/rsparser.c 2008-03-25 14:48:54.000000000 -0600 +++ work7/drivers/pnp/pnpacpi/rsparser.c 2008-03-25 14:48:57.000000000 -0600 @@ -153,33 +153,6 @@ return flags; } -static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, - u64 io, u64 len, int io_decode) -{ - struct pnp_resource_table *res = &dev->res; - int i = 0; - static unsigned char warned; - - while (!(res->port_resource[i].flags & IORESOURCE_UNSET) && - i < PNP_MAX_PORT) - i++; - if (i < PNP_MAX_PORT) { - res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag - if (io_decode == ACPI_DECODE_16) - res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR; - if (len <= 0 || (io + len - 1) >= 0x10003) { - res->port_resource[i].flags |= IORESOURCE_DISABLED; - return; - } - res->port_resource[i].start = io; - res->port_resource[i].end = io + len - 1; - } else if (!warned) { - printk(KERN_ERR "pnpacpi: exceeded the max number of IO " - "resources: %d \n", PNP_MAX_PORT); - warned = 1; - } -} - static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev, u64 mem, u64 len, int write_protect) @@ -230,10 +203,8 @@ p->minimum, p->address_length, p->info.mem.write_protect); else if (p->resource_type == ACPI_IO_RANGE) - pnpacpi_parse_allocated_ioresource(dev, - p->minimum, p->address_length, - p->granularity == 0xfff ? ACPI_DECODE_10 : - ACPI_DECODE_16); + pnp_add_io_resource(dev, p->minimum, p->address_length, + p->granularity == 0xfff ? 0 : PNP_PORT_FLAG_16BITADDR); } static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, @@ -277,10 +248,9 @@ case ACPI_RESOURCE_TYPE_IO: io = &res->data.io; - pnpacpi_parse_allocated_ioresource(dev, - io->minimum, - io->address_length, - io->io_decode); + pnp_add_io_resource(dev, io->minimum, io->address_length, + io->io_decode == ACPI_DECODE_16 ? + PNP_PORT_FLAG_16BITADDR : 0); break; case ACPI_RESOURCE_TYPE_START_DEPENDENT: @@ -289,10 +259,9 @@ case ACPI_RESOURCE_TYPE_FIXED_IO: fixed_io = &res->data.fixed_io; - pnpacpi_parse_allocated_ioresource(dev, + pnp_add_io_resource(dev, fixed_io->address, - fixed_io->address_length, - ACPI_DECODE_10); + fixed_io->address_length, 0); break; case ACPI_RESOURCE_TYPE_VENDOR: Index: work7/drivers/pnp/pnpbios/rsparser.c =================================================================== --- work7.orig/drivers/pnp/pnpbios/rsparser.c 2008-03-25 14:48:54.000000000 -0600 +++ work7/drivers/pnp/pnpbios/rsparser.c 2008-03-25 14:48:57.000000000 -0600 @@ -54,26 +54,6 @@ * Allocated Resources */ -static void pnpbios_parse_allocated_ioresource(struct pnp_dev *dev, - int io, int len) -{ - struct pnp_resource_table *res = &dev->res; - int i = 0; - - while (!(res->port_resource[i].flags & IORESOURCE_UNSET) - && i < PNP_MAX_PORT) - i++; - if (i < PNP_MAX_PORT) { - res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag - if (len <= 0 || (io + len - 1) >= 0x10003) { - res->port_resource[i].flags |= IORESOURCE_DISABLED; - return; - } - res->port_resource[i].start = (unsigned long)io; - res->port_resource[i].end = (unsigned long)(io + len - 1); - } -} - static void pnpbios_parse_allocated_memresource(struct pnp_dev *dev, int mem, int len) { @@ -179,7 +159,7 @@ goto len_err; io = p[2] + p[3] * 256; size = p[7]; - pnpbios_parse_allocated_ioresource(dev, io, size); + pnp_add_io_resource(dev, io, size, 0); break; case SMALL_TAG_VENDOR: @@ -191,7 +171,7 @@ goto len_err; io = p[1] + p[2] * 256; size = p[3]; - pnpbios_parse_allocated_ioresource(dev, io, size); + pnp_add_io_resource(dev, io, size, 0); break; case SMALL_TAG_END: Index: work7/drivers/pnp/interface.c =================================================================== --- work7.orig/drivers/pnp/interface.c 2008-03-25 14:48:54.000000000 -0600 +++ work7/drivers/pnp/interface.c 2008-03-25 14:48:57.000000000 -0600 @@ -325,7 +325,7 @@ struct pnp_dev *dev = to_pnp_dev(dmdev); char *buf = (void *)ubuf; int retval = 0; - resource_size_t start; + resource_size_t start, end, length; if (dev->status & PNP_ATTACHED) { retval = -EBUSY; @@ -370,7 +370,7 @@ goto done; } if (!strnicmp(buf, "set", 3)) { - int nport = 0, nmem = 0; + int nmem = 0; if (dev->active) goto done; buf += 3; @@ -383,24 +383,18 @@ buf += 2; while (isspace(*buf)) ++buf; - dev->res.port_resource[nport].start = - simple_strtoul(buf, &buf, 0); + 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); + 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; + end = start; + length = end - start + 1; + pnp_add_io_resource(dev, start, length, 0); continue; } if (!strnicmp(buf, "mem", 3)) { -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/