-/* Copyright 2004 Linux Networx */
-/* This code is distrubted wihtout warrant under the GPL v2 (see COPYING) */
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2004 Linux Networx
+ * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx)
+ * Copyright (C) 2004 Li-Ta Lo <ollie@lanl.gov>
+ * Copyright (C) 2005 Tyan
+ * (Written by Yinghai Lu <yhlu@tyan.com> for Tyan)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
#include <console/console.h>
#include <stdlib.h>
#include <device/device.h>
#include <device/pnp.h>
-
/* PNP fundamental operations */
-void pnp_write_config(device_t dev, uint8_t reg, uint8_t value)
+void pnp_write_config(device_t dev, u8 reg, u8 value)
{
- outb(reg, dev->path.u.pnp.port);
- outb(value, dev->path.u.pnp.port + 1);
+ outb(reg, dev->path.pnp.port);
+ outb(value, dev->path.pnp.port + 1);
}
-uint8_t pnp_read_config(device_t dev, uint8_t reg)
+u8 pnp_read_config(device_t dev, u8 reg)
{
- outb(reg, dev->path.u.pnp.port);
- return inb(dev->path.u.pnp.port + 1);
+ outb(reg, dev->path.pnp.port);
+ return inb(dev->path.pnp.port + 1);
}
void pnp_set_logical_device(device_t dev)
{
- pnp_write_config(dev, 0x07, dev->path.u.pnp.device);
+ pnp_write_config(dev, 0x07, dev->path.pnp.device & 0xff);
}
void pnp_set_enable(device_t dev, int enable)
{
- pnp_write_config(dev, 0x30, enable?0x1:0x0);
+ u8 tmp, bitpos;
+
+ tmp = pnp_read_config(dev, 0x30);
+
+ /* Handle virtual devices, which share the same LDN register. */
+ bitpos = (dev->path.pnp.device >> 8) & 0x7;
+
+ if (enable)
+ tmp |= (1 << bitpos);
+ else
+ tmp &= ~(1 << bitpos);
+
+ pnp_write_config(dev, 0x30, tmp);
}
int pnp_read_enable(device_t dev)
{
- return !!pnp_read_config(dev, 0x30);
+ u8 tmp, bitpos;
+
+ tmp = pnp_read_config(dev, 0x30);
+
+ /* Handle virtual devices, which share the same LDN register. */
+ bitpos = (dev->path.pnp.device >> 8) & 0x7;
+
+ return !!(tmp & (1 << bitpos));
}
-void pnp_set_iobase(device_t dev, unsigned index, unsigned iobase)
+void pnp_set_iobase(device_t dev, u8 index, u16 iobase)
{
- /* Index == 0x60 or 0x62 */
+ /* Index == 0x60 or 0x62. */
pnp_write_config(dev, index + 0, (iobase >> 8) & 0xff);
pnp_write_config(dev, index + 1, iobase & 0xff);
}
-void pnp_set_irq(device_t dev, unsigned index, unsigned irq)
+void pnp_set_irq(device_t dev, u8 index, u8 irq)
{
- /* Index == 0x70 or 0x72 */
+ /* Index == 0x70 or 0x72. */
pnp_write_config(dev, index, irq);
}
-
-void pnp_set_drq(device_t dev, unsigned drq, unsigned index)
+void pnp_set_drq(device_t dev, u8 index, u8 drq)
{
- /* Index == 0x74 */
+ /* Index == 0x74. */
pnp_write_config(dev, index, drq & 0xff);
}
static void pnp_set_resource(device_t dev, struct resource *resource)
{
if (!(resource->flags & IORESOURCE_ASSIGNED)) {
-#if 1
- printk_err("ERROR: %s %02x not allocated\n",
- dev_path(dev), resource->index);
-#endif
+ printk(BIOS_ERR, "ERROR: %s %02lx %s size: 0x%010llx "
+ "not assigned\n", dev_path(dev), resource->index,
+ resource_type(resource), resource->size);
return;
}
- /* Now store the resource */
- resource->flags |= IORESOURCE_STORED;
+
+ /* Now store the resource. */
if (resource->flags & IORESOURCE_IO) {
pnp_set_iobase(dev, resource->index, resource->base);
- }
- else if (resource->flags & IORESOURCE_DRQ) {
+ } else if (resource->flags & IORESOURCE_DRQ) {
pnp_set_drq(dev, resource->index, resource->base);
- }
- else if (resource->flags & IORESOURCE_IRQ) {
+ } else if (resource->flags & IORESOURCE_IRQ) {
pnp_set_irq(dev, resource->index, resource->base);
- }
- else {
- /* Don't let me think I stored the resource */
- resource->flags &= IORESOURCE_STORED;
- printk_err("ERROR: %s %02x unknown resource type\n",
- dev_path(dev), resource->index);
+ } else {
+ printk(BIOS_ERR, "ERROR: %s %02lx unknown resource type\n",
+ dev_path(dev), resource->index);
return;
}
+ resource->flags |= IORESOURCE_STORED;
- printk_debug(
- "%s %02x <- [0x%08lx - 0x%08lx] %s\n",
- dev_path(dev),
- resource->index,
- resource->base, resource->base + resource->size - 1,
- (resource->flags & IORESOURCE_IO)? "io":
- (resource->flags & IORESOURCE_DRQ)? "drq":
- (resource->flags & IORESOURCE_IRQ)? "irq":
- (resource->flags & IORESOURCE_MEM)? "mem":
- "???");
+ report_resource_stored(dev, resource, "");
}
void pnp_set_resources(device_t dev)
{
- int i;
+ struct resource *res;
- /* Select the device */
+ /* Select the logical device (LDN). */
pnp_set_logical_device(dev);
/* Paranoia says I should disable the device here... */
- for(i = 0; i < dev->resources; i++) {
- pnp_set_resource(dev, &dev->resource[i]);
- }
+ for (res = dev->resource_list; res; res = res->next)
+ pnp_set_resource(dev, res);
}
void pnp_enable_resources(device_t dev)
{
pnp_set_logical_device(dev);
pnp_set_enable(dev, 1);
-
}
void pnp_enable(device_t dev)
{
- pnp_set_logical_device(dev);
- if (!dev->enable) {
+ if (!dev->enabled) {
+ pnp_set_logical_device(dev);
pnp_set_enable(dev, 0);
}
}
.enable = pnp_enable,
};
-/* PNP chip opertations */
+/* PNP chip operations */
-static void pnp_get_ioresource(device_t dev, unsigned index, struct io_info *info)
+static void pnp_get_ioresource(device_t dev, u8 index, struct io_info *info)
{
struct resource *resource;
- uint32_t size;
- resource = get_resource(dev, index);
-
- /* Initilize the resource */
+ unsigned moving, gran, step;
+
+ if (!info->mask) {
+ printk(BIOS_ERR, "ERROR: device %s index %d has no mask.\n",
+ dev_path(dev), index);
+ return;
+ }
+
+ resource = new_resource(dev, index);
+
+ /* Initilize the resource. */
resource->limit = 0xffff;
resource->flags |= IORESOURCE_IO;
-
- /* Set the resource size and alignment */
- size = (0xffff & info->mask);
- resource->size = (~(size | 0xfffff800) + 1);
- resource->align = log2(resource->size);
- resource->gran = resource->align;
+
+ /* Get the resource size... */
+
+ moving = info->mask;
+ gran = 15;
+ step = 1 << gran;
+
+ /* Find the first bit that moves. */
+ while ((moving & step) == 0) {
+ gran--;
+ step >>= 1;
+ }
+
+ /* Now find the first bit that does not move. */
+ while ((moving & step) != 0) {
+ gran--;
+ step >>= 1;
+ }
+
+ /*
+ * Of the moving bits the last bit in the first group,
+ * tells us the size of this resource.
+ */
+ if ((moving & step) == 0) {
+ gran++;
+ step <<= 1;
+ }
+
+ /* Set the resource size and alignment. */
+ resource->gran = gran;
+ resource->align = gran;
+ resource->limit = info->mask | (step - 1);
+ resource->size = 1 << gran;
}
static void get_resources(device_t dev, struct pnp_info *info)
{
struct resource *resource;
- pnp_set_logical_device(dev);
-
- if (info->flags & PNP_IO0) {
+ if (info->flags & PNP_IO0)
pnp_get_ioresource(dev, PNP_IDX_IO0, &info->io0);
- }
- if (info->flags & PNP_IO1) {
+ if (info->flags & PNP_IO1)
pnp_get_ioresource(dev, PNP_IDX_IO1, &info->io1);
- }
+ if (info->flags & PNP_IO2)
+ pnp_get_ioresource(dev, PNP_IDX_IO2, &info->io2);
+ if (info->flags & PNP_IO3)
+ pnp_get_ioresource(dev, PNP_IDX_IO3, &info->io3);
+
if (info->flags & PNP_IRQ0) {
- resource = get_resource(dev, PNP_IDX_IRQ0);
+ resource = new_resource(dev, PNP_IDX_IRQ0);
resource->size = 1;
resource->flags |= IORESOURCE_IRQ;
}
if (info->flags & PNP_IRQ1) {
- resource = get_resource(dev, PNP_IDX_IRQ1);
+ resource = new_resource(dev, PNP_IDX_IRQ1);
resource->size = 1;
resource->flags |= IORESOURCE_IRQ;
}
+
if (info->flags & PNP_DRQ0) {
- resource = get_resource(dev, PNP_IDX_DRQ0);
+ resource = new_resource(dev, PNP_IDX_DRQ0);
resource->size = 1;
resource->flags |= IORESOURCE_DRQ;
}
if (info->flags & PNP_DRQ1) {
- resource = get_resource(dev, PNP_IDX_DRQ1);
+ resource = new_resource(dev, PNP_IDX_DRQ1);
resource->size = 1;
resource->flags |= IORESOURCE_DRQ;
}
-
-}
-void pnp_enumerate(struct chip *chip, unsigned functions,
- struct device_operations *ops, struct pnp_info *info)
+ /*
+ * These are not IRQs, but set the flag to have the
+ * resource allocator do the right thing.
+ */
+ if (info->flags & PNP_EN) {
+ resource = new_resource(dev, PNP_IDX_EN);
+ resource->size = 1;
+ resource->flags |= IORESOURCE_IRQ;
+ }
+ if (info->flags & PNP_MSC0) {
+ resource = new_resource(dev, PNP_IDX_MSC0);
+ resource->size = 1;
+ resource->flags |= IORESOURCE_IRQ;
+ }
+ if (info->flags & PNP_MSC1) {
+ resource = new_resource(dev, PNP_IDX_MSC1);
+ resource->size = 1;
+ resource->flags |= IORESOURCE_IRQ;
+ }
+}
+
+void pnp_enable_devices(device_t base_dev, struct device_operations *ops,
+ unsigned int functions, struct pnp_info *info)
{
struct device_path path;
device_t dev;
int i;
- chip_enumerate(chip);
- path.type = DEVICE_PATH_PNP;
- path.u.pnp.port = chip->dev->path.u.pnp.port;
-
- /* Setup the ops and resources on the newly allocated devices */
- for(i = 0; i < functions; i++) {
- path.u.pnp.device = info[i].function;
- dev = alloc_find_dev(chip->bus, &path);
- dev->ops = ops;
+ path.type = DEVICE_PATH_PNP;
+ path.pnp.port = base_dev->path.pnp.port;
+
+ /* Setup the ops and resources on the newly allocated devices. */
+ for (i = 0; i < functions; i++) {
+ /* Skip logical devices this Super I/O doesn't have. */
+ if (info[i].function == -1)
+ continue;
+
+ path.pnp.device = info[i].function;
+ dev = alloc_find_dev(base_dev->bus, &path);
+
+ /* Don't initialize a device multiple times. */
+ if (dev->ops)
+ continue;
+
+ if (info[i].ops == 0)
+ dev->ops = ops;
+ else
+ dev->ops = info[i].ops;
+
get_resources(dev, &info[i]);
}
}
projects / coreboot.git / blobdiff