summaryrefslogtreecommitdiff
path: root/lib/intel_dpio.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/intel_dpio.c')
-rw-r--r--lib/intel_dpio.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/lib/intel_dpio.c b/lib/intel_dpio.c
deleted file mode 100644
index 7e22095e..00000000
--- a/lib/intel_dpio.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Copyright © 2008 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors:
- * Vijay Purushothaman <vijay.a.purushothaman@intel.com>
- *
- */
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <err.h>
-#include "intel_gpu_tools.h"
-
-static uint32_t intel_display_reg_read(uint32_t reg)
-{
- struct pci_device *dev = intel_get_pci_device();
-
- if (IS_VALLEYVIEW(dev->device_id))
- reg += VLV_DISPLAY_BASE;
- return (*(volatile uint32_t*)((volatile char*)mmio + reg));
-}
-
-static void intel_display_reg_write(uint32_t reg, uint32_t val)
-{
- volatile uint32_t *ptr;
- struct pci_device *dev = intel_get_pci_device();
-
- if (IS_VALLEYVIEW(dev->device_id))
- reg += VLV_DISPLAY_BASE;
- ptr = (volatile uint32_t*)((volatile char*)mmio + reg);
- *ptr = val;
-}
-
-static int get_dpio_port(int phy) {
-
- struct pci_device *dev = intel_get_pci_device();
- int dpio_port;
-
- if (IS_VALLEYVIEW(dev->device_id))
- dpio_port = DPIO_PORTID;
-
- return dpio_port;
-}
-
-/*
- * In SoCs like Valleyview some of the PLL & Lane control registers
- * can be accessed only through IO side band fabric called DPIO
- */
-uint32_t
-intel_dpio_reg_read(uint32_t reg, int phy)
-{
- /* Check whether the side band fabric is ready to accept commands */
- do {
- usleep(1);
- } while (intel_display_reg_read(DPIO_PKT) & DPIO_BUSY);
-
- intel_display_reg_write(DPIO_REG, reg);
- intel_display_reg_write(DPIO_PKT, DPIO_RID |
- DPIO_OP_READ | get_dpio_port(phy) | DPIO_BYTE);
- do {
- usleep(1);
- } while (intel_display_reg_read(DPIO_PKT) & DPIO_BUSY);
-
- return intel_display_reg_read(DPIO_DATA);
-}
-
-/*
- * In SoCs like Valleyview some of the PLL & Lane control registers
- * can be accessed only through IO side band fabric called DPIO
- */
-void
-intel_dpio_reg_write(uint32_t reg, uint32_t val, int phy)
-{
- /* Check whether the side band fabric is ready to accept commands */
- do {
- usleep(1);
- } while (intel_display_reg_read(DPIO_PKT) & DPIO_BUSY);
-
- intel_display_reg_write(DPIO_DATA, val);
- intel_display_reg_write(DPIO_REG, reg);
- intel_display_reg_write(DPIO_PKT, DPIO_RID |
- DPIO_OP_WRITE | get_dpio_port(phy) | DPIO_BYTE);
- do {
- usleep(1);
- } while (intel_display_reg_read(DPIO_PKT) & DPIO_BUSY);
-}