Rename devices -> device
to match src/include/device Change-Id: I5d0e5b4361c34881a3b81347aac48738cb5b9af0 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1960 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
This commit is contained in:
Stefan Reinauer
committed by
Ronald G. Minnich
Ronald G. Minnich
parent
4b6be985aa
commit
8d7115560d
304
src/device/pnp_device.c
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304
src/device/pnp_device.c
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2004 Linux Networx
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* (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx)
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* Copyright (C) 2004 Li-Ta Lo <ollie@lanl.gov>
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* Copyright (C) 2005 Tyan
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* (Written by Yinghai Lu <yhlu@tyan.com> for Tyan)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <console/console.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <arch/io.h>
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#include <device/device.h>
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#include <device/pnp.h>
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/* PNP fundamental operations */
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void pnp_write_config(device_t dev, u8 reg, u8 value)
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{
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outb(reg, dev->path.pnp.port);
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outb(value, dev->path.pnp.port + 1);
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}
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u8 pnp_read_config(device_t dev, u8 reg)
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{
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outb(reg, dev->path.pnp.port);
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return inb(dev->path.pnp.port + 1);
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}
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void pnp_set_logical_device(device_t dev)
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{
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pnp_write_config(dev, 0x07, dev->path.pnp.device & 0xff);
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}
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void pnp_set_enable(device_t dev, int enable)
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{
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u8 tmp, bitpos;
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tmp = pnp_read_config(dev, 0x30);
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/* Handle virtual devices, which share the same LDN register. */
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bitpos = (dev->path.pnp.device >> 8) & 0x7;
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if (enable)
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tmp |= (1 << bitpos);
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else
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tmp &= ~(1 << bitpos);
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pnp_write_config(dev, 0x30, tmp);
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}
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int pnp_read_enable(device_t dev)
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{
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u8 tmp, bitpos;
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tmp = pnp_read_config(dev, 0x30);
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/* Handle virtual devices, which share the same LDN register. */
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bitpos = (dev->path.pnp.device >> 8) & 0x7;
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return !!(tmp & (1 << bitpos));
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}
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void pnp_set_iobase(device_t dev, u8 index, u16 iobase)
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{
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/* Index == 0x60 or 0x62. */
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pnp_write_config(dev, index + 0, (iobase >> 8) & 0xff);
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pnp_write_config(dev, index + 1, iobase & 0xff);
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}
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void pnp_set_irq(device_t dev, u8 index, u8 irq)
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{
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/* Index == 0x70 or 0x72. */
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pnp_write_config(dev, index, irq);
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}
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void pnp_set_drq(device_t dev, u8 index, u8 drq)
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{
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/* Index == 0x74. */
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pnp_write_config(dev, index, drq & 0xff);
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}
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/* PNP device operations */
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void pnp_read_resources(device_t dev)
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{
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return;
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}
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static void pnp_set_resource(device_t dev, struct resource *resource)
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{
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if (!(resource->flags & IORESOURCE_ASSIGNED)) {
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printk(BIOS_ERR, "ERROR: %s %02lx %s size: 0x%010llx "
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"not assigned\n", dev_path(dev), resource->index,
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resource_type(resource), resource->size);
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return;
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}
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/* Now store the resource. */
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if (resource->flags & IORESOURCE_IO) {
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pnp_set_iobase(dev, resource->index, resource->base);
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} else if (resource->flags & IORESOURCE_DRQ) {
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pnp_set_drq(dev, resource->index, resource->base);
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} else if (resource->flags & IORESOURCE_IRQ) {
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pnp_set_irq(dev, resource->index, resource->base);
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} else {
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printk(BIOS_ERR, "ERROR: %s %02lx unknown resource type\n",
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dev_path(dev), resource->index);
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return;
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}
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resource->flags |= IORESOURCE_STORED;
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report_resource_stored(dev, resource, "");
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}
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void pnp_set_resources(device_t dev)
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{
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struct resource *res;
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/* Select the logical device (LDN). */
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pnp_set_logical_device(dev);
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/* Paranoia says I should disable the device here... */
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for (res = dev->resource_list; res; res = res->next)
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pnp_set_resource(dev, res);
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}
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void pnp_enable_resources(device_t dev)
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{
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pnp_set_logical_device(dev);
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pnp_set_enable(dev, 1);
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}
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void pnp_enable(device_t dev)
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{
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if (!dev->enabled) {
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pnp_set_logical_device(dev);
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pnp_set_enable(dev, 0);
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}
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}
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struct device_operations pnp_ops = {
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.read_resources = pnp_read_resources,
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.set_resources = pnp_set_resources,
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.enable_resources = pnp_enable_resources,
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.enable = pnp_enable,
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};
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/* PNP chip operations */
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static void pnp_get_ioresource(device_t dev, u8 index, struct io_info *info)
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{
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struct resource *resource;
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unsigned moving, gran, step;
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if (!info->mask) {
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printk(BIOS_ERR, "ERROR: device %s index %d has no mask.\n",
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dev_path(dev), index);
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return;
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}
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resource = new_resource(dev, index);
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/* Initilize the resource. */
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resource->limit = 0xffff;
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resource->flags |= IORESOURCE_IO;
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/* Get the resource size... */
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moving = info->mask;
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gran = 15;
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step = 1 << gran;
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/* Find the first bit that moves. */
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while ((moving & step) == 0) {
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gran--;
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step >>= 1;
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}
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/* Now find the first bit that does not move. */
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while ((moving & step) != 0) {
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gran--;
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step >>= 1;
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}
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/*
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* Of the moving bits the last bit in the first group,
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* tells us the size of this resource.
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*/
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if ((moving & step) == 0) {
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gran++;
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step <<= 1;
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}
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/* Set the resource size and alignment. */
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resource->gran = gran;
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resource->align = gran;
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resource->limit = info->mask | (step - 1);
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resource->size = 1 << gran;
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}
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static void get_resources(device_t dev, struct pnp_info *info)
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{
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struct resource *resource;
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if (info->flags & PNP_IO0)
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pnp_get_ioresource(dev, PNP_IDX_IO0, &info->io0);
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if (info->flags & PNP_IO1)
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pnp_get_ioresource(dev, PNP_IDX_IO1, &info->io1);
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if (info->flags & PNP_IO2)
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pnp_get_ioresource(dev, PNP_IDX_IO2, &info->io2);
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if (info->flags & PNP_IO3)
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pnp_get_ioresource(dev, PNP_IDX_IO3, &info->io3);
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if (info->flags & PNP_IRQ0) {
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resource = new_resource(dev, PNP_IDX_IRQ0);
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resource->size = 1;
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resource->flags |= IORESOURCE_IRQ;
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}
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if (info->flags & PNP_IRQ1) {
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resource = new_resource(dev, PNP_IDX_IRQ1);
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resource->size = 1;
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resource->flags |= IORESOURCE_IRQ;
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}
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if (info->flags & PNP_DRQ0) {
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resource = new_resource(dev, PNP_IDX_DRQ0);
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resource->size = 1;
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resource->flags |= IORESOURCE_DRQ;
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}
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if (info->flags & PNP_DRQ1) {
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resource = new_resource(dev, PNP_IDX_DRQ1);
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resource->size = 1;
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resource->flags |= IORESOURCE_DRQ;
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}
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/*
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* These are not IRQs, but set the flag to have the
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* resource allocator do the right thing.
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*/
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if (info->flags & PNP_EN) {
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resource = new_resource(dev, PNP_IDX_EN);
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resource->size = 1;
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resource->flags |= IORESOURCE_IRQ;
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}
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if (info->flags & PNP_MSC0) {
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resource = new_resource(dev, PNP_IDX_MSC0);
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resource->size = 1;
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resource->flags |= IORESOURCE_IRQ;
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}
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if (info->flags & PNP_MSC1) {
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resource = new_resource(dev, PNP_IDX_MSC1);
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resource->size = 1;
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resource->flags |= IORESOURCE_IRQ;
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}
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}
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void pnp_enable_devices(device_t base_dev, struct device_operations *ops,
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unsigned int functions, struct pnp_info *info)
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{
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struct device_path path;
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device_t dev;
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int i;
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path.type = DEVICE_PATH_PNP;
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path.pnp.port = base_dev->path.pnp.port;
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/* Setup the ops and resources on the newly allocated devices. */
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for (i = 0; i < functions; i++) {
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/* Skip logical devices this Super I/O doesn't have. */
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if (info[i].function == -1)
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continue;
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path.pnp.device = info[i].function;
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dev = alloc_find_dev(base_dev->bus, &path);
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/* Don't initialize a device multiple times. */
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if (dev->ops)
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continue;
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if (info[i].ops == 0)
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dev->ops = ops;
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else
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dev->ops = info[i].ops;
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get_resources(dev, &info[i]);
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}
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}
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