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authorStefan Reinauer <stefan.reinauer@coreboot.org>2016-03-11 20:22:28 -0800
committerStefan Reinauer <stefan.reinauer@coreboot.org>2016-04-19 18:34:18 +0200
commit86ddd732bd82b84724883b1f1579e18790611fe5 (patch)
treee52c4c88ceb7e14fd415031c56997d8c4054116e /src/drivers/pc80/keyboard.c
parent3812597c668b795d4fc85578021e501f2a56f6b9 (diff)
kbuild: Allow drivers to fit src/drivers/[X]/[Y]/ scheme
Reorder drivers to fit src/drivers/[X]/[Y]/ scheme to make them pluggable. Also, fix up the following driver subdirectories by switching to the src/drivers/[X]/[Y]/ scheme as these are hard requirements for the main change: * drivers/intel * drivers/pc80 * drivers/dec Change-Id: I455d3089a317181d5b99bf658df759ec728a5f6b Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/14047 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/drivers/pc80/keyboard.c')
-rw-r--r--src/drivers/pc80/keyboard.c381
1 files changed, 0 insertions, 381 deletions
diff --git a/src/drivers/pc80/keyboard.c b/src/drivers/pc80/keyboard.c
deleted file mode 100644
index 56b1fce93b..0000000000
--- a/src/drivers/pc80/keyboard.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2015 Raptor Engineering
- * Copyright (C) 2009 coresystems GmbH
- * Copyright (C) 2008 Advanced Micro Devices, Inc.
- * Copyright (C) 2003 Ollie Lo <ollielo@hotmail.com>
- *
- * 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.
- */
-
-#include <console/console.h>
-#include <pc80/keyboard.h>
-#include <device/device.h>
-#include <arch/io.h>
-#include <delay.h>
-#include <types.h>
-#include <arch/acpi.h>
-
-#define KBD_DATA 0x60
-#define KBD_COMMAND 0x64
-#define KBD_STATUS 0x64
-#define KBD_IBF (1 << 1) // 1: input buffer full (data ready for ec)
-#define KBD_OBF (1 << 0) // 1: output buffer full (data ready for host)
-
-// Keyboard Controller Commands
-#define KBC_CMD_READ_COMMAND 0x20 // Read command byte
-#define KBC_CMD_WRITE_COMMAND 0x60 // Write command byte
-#define KBC_CMD_AUX_ENABLE 0xA8 // Auxiliary Interface enable
-#define KBC_CMD_AUX_TEST 0xA9 // Auxiliary Interface test
-#define KBC_CMD_SELF_TEST 0xAA // Controller self-test
-#define KBC_CMD_KBD_TEST 0xAB // Keyboard Interface test
-
-/* The Keyboard controller command byte
- * BIT | Description
- * ----+-------------------------------------------------------
- * 7 | reserved, must be zero
- * 6 | XT Translation, (1 = on, 0 = off)
- * 5 | Disable Mouse Port (1 = disable, 0 = enable)
- * 4 | Disable Keyboard Port (1 = disable, 0 = enable)
- * 3 | reserved, must be zero
- * 2 | System Flag (1 = self-test passed. DO NOT SET TO ZERO)
- * 1 | Mouse Port Interrupts (1 = enable, 0 = disable)
- * 0 | Keyboard Port Interrupts (1 = enable, 0 = disable)
- */
-
-// Keyboard Controller Replies
-#define KBC_REPLY_SELFTEST_OK 0x55 // controller self-test succeeded
-
-//
-// Keyboard Replies
-//
-#define KBD_REPLY_POR 0xAA // Power on reset
-#define KBD_REPLY_ACK 0xFA // Command ACK
-#define KBD_REPLY_RESEND 0xFE // Command NACK, send command again
-
-/* Wait 400ms for keyboard controller answers */
-#define KBC_TIMEOUT_IN_MS 400
-
-static int kbc_input_buffer_empty(void)
-{
- u32 timeout;
- for (timeout = KBC_TIMEOUT_IN_MS;
- timeout && (inb(KBD_STATUS) & KBD_IBF); timeout--)
- mdelay(1);
-
- if (!timeout)
- printk(BIOS_WARNING,
- "Unexpected Keyboard controller input buffer full\n");
- return !!timeout;
-}
-
-static int kbc_output_buffer_full(void)
-{
- u32 timeout;
- for (timeout = KBC_TIMEOUT_IN_MS;
- timeout && ((inb(KBD_STATUS) & KBD_OBF) == 0); timeout--)
- mdelay(1);
-
- if (!timeout)
- printk(BIOS_INFO,
- "Keyboard controller output buffer result timeout\n");
- return !!timeout;
-}
-
-static int kbc_cleanup_buffers(void)
-{
- u32 timeout;
- for (timeout = KBC_TIMEOUT_IN_MS;
- timeout && (inb(KBD_STATUS) & (KBD_OBF | KBD_IBF)); timeout--) {
- mdelay(1);
- inb(KBD_DATA);
- }
-
- if (!timeout) {
- printk(BIOS_ERR,
- "Couldn't cleanup the keyboard controller buffers\n");
- printk(BIOS_ERR, "Status (0x%x): 0x%x, Buffer (0x%x): 0x%x\n",
- KBD_STATUS, inb(KBD_STATUS), KBD_DATA, inb(KBD_DATA));
- }
-
- return !!timeout;
-}
-
-static enum cb_err kbc_self_test(uint8_t probe_aux, uint8_t *aux_probe_result)
-{
- uint8_t self_test;
- uint8_t byte;
-
- /* Set initial aux probe output value */
- if (aux_probe_result)
- *aux_probe_result = 0;
-
- /* Clean up any junk that might have been in the KBC.
- * Both input and output buffers must be empty.
- */
- if (!kbc_cleanup_buffers())
- return CB_KBD_CONTROLLER_FAILURE;
-
- /* reset/self test 8042 - send cmd 0xAA */
- outb(KBC_CMD_SELF_TEST, KBD_COMMAND);
-
- if (!kbc_output_buffer_full()) {
- /* There probably is no keyboard controller. */
- printk(BIOS_ERR, "Could not reset keyboard controller.\n");
- return CB_KBD_CONTROLLER_FAILURE;
- }
-
- /* read self-test result, 0x55 is returned in the output buffer */
- self_test = inb(KBD_DATA);
-
- if (self_test != 0x55) {
- printk(BIOS_ERR, "Keyboard Controller self-test failed: 0x%x\n",
- self_test);
- return CB_KBD_CONTROLLER_FAILURE;
- }
-
- /* ensure the buffers are empty */
- kbc_cleanup_buffers();
-
- /* keyboard interface test */
- outb(KBC_CMD_KBD_TEST, KBD_COMMAND);
-
- if (!kbc_output_buffer_full()) {
- printk(BIOS_ERR, "Keyboard Interface test timed out.\n");
- return CB_KBD_CONTROLLER_FAILURE;
- }
-
- /* read test result, 0x00 should be returned in case of no failures */
- self_test = inb(KBD_DATA);
-
- if (self_test != 0x00) {
- printk(BIOS_ERR, "Keyboard Interface test failed: 0x%x\n",
- self_test);
- return CB_KBD_INTERFACE_FAILURE;
- }
-
- if (probe_aux) {
- /* aux interface detect */
- outb(KBC_CMD_AUX_ENABLE, KBD_COMMAND);
- if (!kbc_input_buffer_empty()) {
- printk(BIOS_ERR, "Timeout waiting for controller during aux enable.\n");
- return CB_KBD_CONTROLLER_FAILURE;
- }
- outb(KBC_CMD_READ_COMMAND, KBD_COMMAND);
- if (!kbc_output_buffer_full()) {
- printk(BIOS_ERR, "Timeout waiting for controller during aux probe.\n");
- return CB_KBD_CONTROLLER_FAILURE;
- }
-
- byte = inb(KBD_DATA);
- if (!(byte & (0x1 << 5))) {
- printk(BIOS_DEBUG, "PS/2 auxiliary channel detected...\n");
-
- /* auxiliary interface test */
- outb(KBC_CMD_AUX_TEST, KBD_COMMAND);
-
- if (!kbc_output_buffer_full()) {
- printk(BIOS_ERR, "Auxiliary channel probe timed out.\n");
- goto aux_failure;
- }
-
- /* read test result, 0x00 should be returned in case of no failures */
- self_test = inb(KBD_DATA);
-
- if (self_test != 0x00) {
- printk(BIOS_ERR, "No device detected on auxiliary channel: 0x%x\n",
- self_test);
- goto aux_failure;
- }
-
- printk(BIOS_DEBUG, "PS/2 device detected on auxiliary channel\n");
- if (aux_probe_result)
- *aux_probe_result = 1;
- }
- }
-
-aux_failure:
-
- return CB_SUCCESS;
-}
-
-static u8 send_keyboard(u8 command)
-{
- u8 regval = 0;
- u8 resend = 10;
-
- do {
- if (!kbc_input_buffer_empty())
- return 0;
- outb(command, KBD_DATA);
- /* the reset command takes much longer then normal commands and
- * even worse, some keyboards do send the ACK _after_ doing the
- * reset */
- if (command == 0xFF) {
- u8 retries;
- for (retries = 9; retries && !kbc_output_buffer_full();
- retries--) ;
- }
- if (!kbc_output_buffer_full()) {
- printk(BIOS_ERR,
- "Could not send keyboard command %02x\n",
- command);
- return 0;
- }
- regval = inb(KBD_DATA);
- --resend;
- } while (regval == KBD_REPLY_RESEND && resend > 0);
-
- return regval;
-}
-
-uint8_t pc_keyboard_init(uint8_t probe_aux)
-{
- u8 retries;
- u8 regval;
- enum cb_err err;
- uint8_t aux_dev_detected;
-
- if (!CONFIG_DRIVERS_PS2_KEYBOARD)
- return 0;
-
- if (acpi_is_wakeup_s3())
- return 0;
-
- printk(BIOS_DEBUG, "Keyboard init...\n");
-
- /* Run a keyboard controller self-test */
- err = kbc_self_test(probe_aux, &aux_dev_detected);
- /* Ignore iterface failure as it's non-fatal. */
- if (err != CB_SUCCESS && err != CB_KBD_INTERFACE_FAILURE)
- return 0;
-
- /* Enable keyboard interface - No IRQ */
- if (!kbc_input_buffer_empty())
- return 0;
- outb(0x60, KBD_COMMAND);
- if (!kbc_input_buffer_empty())
- return 0;
- outb(0x20, KBD_DATA); /* send cmd: enable keyboard */
- if (!kbc_input_buffer_empty()) {
- printk(BIOS_INFO, "Timeout while enabling keyboard\n");
- return 0;
- }
-
- /* clean up any junk that might have been in the keyboard */
- if (!kbc_cleanup_buffers())
- return 0;
-
- /* reset keyboard and self test (keyboard side) */
- regval = send_keyboard(0xFF);
- if (regval == KBD_REPLY_RESEND) {
- /* keeps sending RESENDs, probably no keyboard. */
- printk(BIOS_INFO, "No PS/2 keyboard detected.\n");
- return 0;
- }
-
- if (regval != KBD_REPLY_ACK) {
- printk(BIOS_ERR, "Keyboard reset failed ACK: 0x%x\n", regval);
- return 0;
- }
-
- /* the reset command takes some time, so wait a little longer */
- for (retries = 9; retries && !kbc_output_buffer_full(); retries--) ;
-
- if (!kbc_output_buffer_full()) {
- printk(BIOS_ERR, "Timeout waiting for keyboard after reset.\n");
- return 0;
- }
-
- regval = inb(KBD_DATA);
- if (regval != 0xAA) {
- printk(BIOS_ERR, "Keyboard reset selftest failed: 0x%x\n",
- regval);
- return 0;
- }
-
- /*
- * The following set scancode stuff is what normal BIOS do. It could be
- * argued that coreboot shouldn't set the scan code.....
- */
-
- /* disable the keyboard */
- regval = send_keyboard(0xF5);
- if (regval != KBD_REPLY_ACK) {
- printk(BIOS_ERR, "Keyboard disable failed ACK: 0x%x\n", regval);
- return 0;
- }
-
- /* Set scancode command */
- regval = send_keyboard(0xF0);
- if (regval != KBD_REPLY_ACK) {
- printk(BIOS_ERR, "Keyboard set scancode cmd failed ACK: 0x%x\n",
- regval);
- return 0;
- }
- /* Set scancode mode 2 */
- regval = send_keyboard(0x02);
- if (regval != KBD_REPLY_ACK) {
- printk(BIOS_ERR,
- "Keyboard set scancode mode failed ACK: 0x%x\n", regval);
- return 0;
- }
-
- /* All is well - enable keyboard interface */
- if (!kbc_input_buffer_empty())
- return 0;
- outb(0x60, KBD_COMMAND);
- if (!kbc_input_buffer_empty())
- return 0;
- outb(0x65, KBD_DATA); /* send cmd: enable keyboard and IRQ 1 */
- if (!kbc_input_buffer_empty()) {
- printk(BIOS_ERR, "Timeout during keyboard enable\n");
- return 0;
- }
-
- /* enable the keyboard */
- regval = send_keyboard(0xF4);
- if (regval != KBD_REPLY_ACK) {
- printk(BIOS_ERR, "Keyboard enable failed ACK: 0x%x\n", regval);
- return 0;
- }
-
- printk(BIOS_DEBUG, "PS/2 keyboard initialized on primary channel\n");
-
- return aux_dev_detected;
-}
-
-/*
- * Support PS/2 mode - oddball SIOs(KBC) need this setup
- * Not well documented. Google - 0xcb keyboard controller
- * This is called before pc_keyboard_init().
- */
-void set_kbc_ps2_mode(void)
-{
- enum cb_err err;
-
- /* Run a keyboard controller self-test */
- err = kbc_self_test(0, NULL);
- /* Ignore iterface failure as it's non-fatal. */
- if (err != CB_SUCCESS && err != CB_KBD_INTERFACE_FAILURE)
- return;
-
- /* Support PS/2 mode */
- if (!kbc_input_buffer_empty())
- return;
- outb(0xcb, KBD_COMMAND);
-
- if (!kbc_input_buffer_empty())
- return;
- outb(0x01, KBD_DATA);
-
- kbc_cleanup_buffers();
-}