diff options
author | Eric Biederman <ebiederm@xmission.com> | 2004-03-11 15:01:31 +0000 |
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committer | Eric Biederman <ebiederm@xmission.com> | 2004-03-11 15:01:31 +0000 |
commit | 5cd81730ecef18690f92d193b0381c103a5b3d9b (patch) | |
tree | f4d2755177561691661f8d945081df67bcc9cd1a /src/devices/pnp_device.c | |
parent | f31d5542f6e193595da0f66aea68602910984861 (diff) |
- Moved hlt() to it's own header.
- Reworked pnp superio device support. Now complete superio support is less than 100 lines.
- Added support for hard coding resource assignments in Config.lb
- Minor bug fixes to romcc
- Initial support for catching the x86 processor BIST error codes. I've only seen
this trigger once in production during a very suspcious reset but...
- added raminit_test to test the code paths in raminit.c for the Opteron
- Removed the IORESOURCE_SET bit and added IORESOURCE_ASSIGNED and IORESOURCE_STORED
so we can tell what we have really done.
- Added generic AGP/IOMMU setting code to x86
- Added an implementation of memmove and removed reserved identifiers from memcpy
- Added minimal support for booting on pre b3 stepping K8 cores
- Moved the checksum on amd8111 boards because our default location was on top of
extended RTC registers
- On the Hdama added support for enabling i2c hub so we can get at the temperature
sensors. Not that i2c bus was implemented well enough to make that useful.
- Redid the Opteron port so we should only need one reset and most of memory initialization
is done in cpu_fixup. This is much, much faster.
- Attempted to make the VGA IO region assigment work. The code seems to work now...
- Redid the error handling in amdk8/raminit.c to distinguish between a bad value
and a smbus error, and moved memory clearing out to cpufixup.
- Removed CONFIG_KEYBOARD as it was useless. See pc87360/superio.c for how to
setup a legacy keyboard properly.
- Reworked the register values for standard hardware, moving the defintions from
chip.h into the headers of the initialization routines. This is much saner
and is actually implemented.
- Made the hdama port an under clockers BIOS. I debuged so many interesting problems.
- On amd8111_lpc added setup of architectural/legacy hardware
- Enabled PCI error reporting as much as possible.
- Enhanded build_opt_tbl to generate a header of the cmos option locations so
that romcc compiled code can query the cmos options.
- In romcc gracefully handle function names that degenerate into function pointers
- Bumped the version to 1.1.6 as we are getting closer to 2.0
TODO finish optimizing the HT links of non dual boards
TODO make all Opteron board work again
TODO convert all superio devices to use the new helpers
TODO convert the via/epia to freebios2 conventions
TODO cpu fixup/setup by cpu type
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1390 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/devices/pnp_device.c')
-rw-r--r-- | src/devices/pnp_device.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/devices/pnp_device.c b/src/devices/pnp_device.c new file mode 100644 index 0000000000..0bccd7d151 --- /dev/null +++ b/src/devices/pnp_device.c @@ -0,0 +1,217 @@ +/* Copyright 2004 Linux Networx */ +/* This code is distrubted wihtout warrant under the GPL v2 (see COPYING) */ + +#include <console/console.h> +#include <stdlib.h> +#include <stdint.h> +#include <bitops.h> +#include <string.h> +#include <arch/io.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) +{ + outb(reg, dev->path.u.pnp.port); + outb(value, dev->path.u.pnp.port + 1); +} + +uint8_t pnp_read_config(device_t dev, uint8_t reg) +{ + outb(reg, dev->path.u.pnp.port); + return inb(dev->path.u.pnp.port + 1); +} + +void pnp_set_logical_device(device_t dev) +{ + pnp_write_config(dev, 0x07, dev->path.u.pnp.device); +} + +void pnp_set_enable(device_t dev, int enable) +{ + pnp_write_config(dev, 0x30, enable?0x1:0x0); +} + +int pnp_read_enable(device_t dev) +{ + return !!pnp_read_config(dev, 0x30); +} + +void pnp_set_iobase(device_t dev, unsigned index, unsigned iobase) +{ + /* 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) +{ + /* Index == 0x70 or 0x72 */ + pnp_write_config(dev, index, irq); +} + + +void pnp_set_drq(device_t dev, unsigned drq, unsigned index) +{ + /* Index == 0x74 */ + pnp_write_config(dev, index, drq & 0xff); +} + +/* PNP device operations */ + +void pnp_read_resources(device_t dev) +{ + return; +} + +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 + return; + } + /* Now store the resource */ + resource->flags |= IORESOURCE_STORED; + if (resource->flags & IORESOURCE_IO) { + pnp_set_iobase(dev, resource->index, resource->base); + } + else if (resource->flags & IORESOURCE_DRQ) { + pnp_set_drq(dev, resource->index, resource->base); + } + 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); + return; + } + + 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": + "???"); +} + +void pnp_set_resources(device_t dev) +{ + int i; + + /* Select the device */ + 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]); + } +} + +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) { + pnp_set_enable(dev, 0); + } +} + +struct device_operations pnp_ops = { + .read_resources = pnp_read_resources, + .set_resources = pnp_set_resources, + .enable_resources = pnp_enable_resources, + .enable = pnp_enable, +}; + +/* PNP chip opertations */ + +static void pnp_get_ioresource(device_t dev, unsigned index, struct io_info *info) +{ + struct resource *resource; + uint32_t size; + resource = get_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; +} + +static void get_resources(device_t dev, struct pnp_info *info) +{ + struct resource *resource; + + pnp_set_logical_device(dev); + + if (info->flags & PNP_IO0) { + pnp_get_ioresource(dev, PNP_IDX_IO0, &info->io0); + } + if (info->flags & PNP_IO1) { + pnp_get_ioresource(dev, PNP_IDX_IO1, &info->io1); + } + if (info->flags & PNP_IRQ0) { + resource = get_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->size = 1; + resource->flags |= IORESOURCE_IRQ; + } + if (info->flags & PNP_DRQ0) { + resource = get_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->size = 1; + resource->flags |= IORESOURCE_DRQ; + } + +} + +void pnp_enumerate(struct chip *chip, unsigned functions, + struct device_operations *ops, 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; + get_resources(dev, &info[i]); + } +} |