/* mga_warp.c -- Matrox G200/G400 WARP engine management -*- linux-c -*-
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* Created: Thu Jan 11 21:29:32 2001 by gareth@valinux.com
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*
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Gareth Hughes <gareth@valinux.com>
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*/
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#include <linux/firmware.h>
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#include <linux/ihex.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include "mga_drv.h"
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#define FIRMWARE_G200 "matrox/g200_warp.fw"
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#define FIRMWARE_G400 "matrox/g400_warp.fw"
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MODULE_FIRMWARE(FIRMWARE_G200);
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MODULE_FIRMWARE(FIRMWARE_G400);
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#define MGA_WARP_CODE_ALIGN 256 /* in bytes */
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#define WARP_UCODE_SIZE(size) ALIGN(size, MGA_WARP_CODE_ALIGN)
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int mga_warp_install_microcode(drm_mga_private_t *dev_priv)
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{
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unsigned char *vcbase = dev_priv->warp->handle;
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unsigned long pcbase = dev_priv->warp->offset;
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const char *firmware_name;
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struct platform_device *pdev;
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const struct firmware *fw = NULL;
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const struct ihex_binrec *rec;
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unsigned int size;
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int n_pipes, where;
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int rc = 0;
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switch (dev_priv->chipset) {
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case MGA_CARD_TYPE_G400:
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case MGA_CARD_TYPE_G550:
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firmware_name = FIRMWARE_G400;
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n_pipes = MGA_MAX_G400_PIPES;
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break;
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case MGA_CARD_TYPE_G200:
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firmware_name = FIRMWARE_G200;
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n_pipes = MGA_MAX_G200_PIPES;
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break;
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default:
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return -EINVAL;
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}
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pdev = platform_device_register_simple("mga_warp", 0, NULL, 0);
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if (IS_ERR(pdev)) {
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DRM_ERROR("mga: Failed to register microcode\n");
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return PTR_ERR(pdev);
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}
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rc = request_ihex_firmware(&fw, firmware_name, &pdev->dev);
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platform_device_unregister(pdev);
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if (rc) {
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DRM_ERROR("mga: Failed to load microcode \"%s\"\n",
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firmware_name);
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return rc;
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}
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size = 0;
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where = 0;
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for (rec = (const struct ihex_binrec *)fw->data;
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rec;
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rec = ihex_next_binrec(rec)) {
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size += WARP_UCODE_SIZE(be16_to_cpu(rec->len));
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where++;
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}
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if (where != n_pipes) {
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DRM_ERROR("mga: Invalid microcode \"%s\"\n", firmware_name);
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rc = -EINVAL;
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goto out;
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}
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size = PAGE_ALIGN(size);
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DRM_DEBUG("MGA ucode size = %d bytes\n", size);
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if (size > dev_priv->warp->size) {
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DRM_ERROR("microcode too large! (%u > %lu)\n",
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size, dev_priv->warp->size);
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rc = -ENOMEM;
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goto out;
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}
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memset(dev_priv->warp_pipe_phys, 0, sizeof(dev_priv->warp_pipe_phys));
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where = 0;
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for (rec = (const struct ihex_binrec *)fw->data;
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rec;
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rec = ihex_next_binrec(rec)) {
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unsigned int src_size, dst_size;
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DRM_DEBUG(" pcbase = 0x%08lx vcbase = %p\n", pcbase, vcbase);
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dev_priv->warp_pipe_phys[where] = pcbase;
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src_size = be16_to_cpu(rec->len);
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dst_size = WARP_UCODE_SIZE(src_size);
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memcpy(vcbase, rec->data, src_size);
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pcbase += dst_size;
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vcbase += dst_size;
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where++;
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}
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out:
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release_firmware(fw);
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return rc;
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}
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#define WMISC_EXPECTED (MGA_WUCODECACHE_ENABLE | MGA_WMASTER_ENABLE)
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int mga_warp_init(drm_mga_private_t *dev_priv)
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{
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u32 wmisc;
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/* FIXME: Get rid of these damned magic numbers...
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*/
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switch (dev_priv->chipset) {
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case MGA_CARD_TYPE_G400:
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case MGA_CARD_TYPE_G550:
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MGA_WRITE(MGA_WIADDR2, MGA_WMODE_SUSPEND);
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MGA_WRITE(MGA_WGETMSB, 0x00000E00);
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MGA_WRITE(MGA_WVRTXSZ, 0x00001807);
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MGA_WRITE(MGA_WACCEPTSEQ, 0x18000000);
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break;
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case MGA_CARD_TYPE_G200:
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MGA_WRITE(MGA_WIADDR, MGA_WMODE_SUSPEND);
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MGA_WRITE(MGA_WGETMSB, 0x1606);
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MGA_WRITE(MGA_WVRTXSZ, 7);
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break;
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default:
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return -EINVAL;
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}
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MGA_WRITE(MGA_WMISC, (MGA_WUCODECACHE_ENABLE |
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MGA_WMASTER_ENABLE | MGA_WCACHEFLUSH_ENABLE));
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wmisc = MGA_READ(MGA_WMISC);
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if (wmisc != WMISC_EXPECTED) {
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DRM_ERROR("WARP engine config failed! 0x%x != 0x%x\n",
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wmisc, WMISC_EXPECTED);
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return -EINVAL;
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}
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return 0;
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}
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