From f2b3cd63cfa2fcf7874b1947c60c22b664a277c7 Mon Sep 17 00:00:00 2001 From: Vladimir Serbinenko Date: Sat, 15 Feb 2014 17:00:46 +0100 Subject: lenovo/x60: Support digitizer on X60t and X201t. Change-Id: I5b0399a8edca3b73aa7d515d2c446c31b3239fa5 Signed-off-by: Vladimir Serbinenko Reviewed-on: http://review.coreboot.org/5239 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/drivers/Kconfig | 1 + src/drivers/Makefile.inc | 1 + src/drivers/lenovo/Kconfig | 29 +++++++ src/drivers/lenovo/Makefile.inc | 1 + src/drivers/lenovo/lenovo.h | 3 + src/drivers/lenovo/wacom.c | 176 ++++++++++++++++++++++++++++++++++++++++ 6 files changed, 211 insertions(+) create mode 100644 src/drivers/lenovo/Kconfig create mode 100644 src/drivers/lenovo/Makefile.inc create mode 100644 src/drivers/lenovo/lenovo.h create mode 100644 src/drivers/lenovo/wacom.c (limited to 'src/drivers') diff --git a/src/drivers/Kconfig b/src/drivers/Kconfig index 874ec751fc..42d1583baf 100644 --- a/src/drivers/Kconfig +++ b/src/drivers/Kconfig @@ -26,6 +26,7 @@ source src/drivers/i2c/Kconfig source src/drivers/ics/Kconfig source src/drivers/intel/Kconfig source src/drivers/ipmi/Kconfig +source src/drivers/lenovo/Kconfig source src/drivers/maxim/Kconfig source src/drivers/parade/Kconfig if PC80_SYSTEM diff --git a/src/drivers/Makefile.inc b/src/drivers/Makefile.inc index 66fe7b8eb8..cb2664396e 100644 --- a/src/drivers/Makefile.inc +++ b/src/drivers/Makefile.inc @@ -23,6 +23,7 @@ subdirs-y += emulation subdirs-y += generic subdirs-y += i2c subdirs-y += intel +subdirs-y += lenovo subdirs-y += maxim subdirs-y += net subdirs-y += parade diff --git a/src/drivers/lenovo/Kconfig b/src/drivers/lenovo/Kconfig new file mode 100644 index 0000000000..30bacb90ea --- /dev/null +++ b/src/drivers/lenovo/Kconfig @@ -0,0 +1,29 @@ +config DRIVERS_LENOVO_WACOM + bool + default n + +if DRIVERS_LENOVO_WACOM + +choice + prompt "Digitizer" + default DIGITIZER_AUTODETECT + +config DIGITIZER_AUTODETECT + bool "Autodetect" + help + The presence of digitizer is inferred from model number stored in + AT24RF chip. + +config DIGITIZER_PRESENT + bool "Present" + help + The digitizer is assumed to be present. + +config DIGITIZER_ABSENT + bool "Absent" + help + The digitizer is assumed to be absent. + +endchoice + +endif diff --git a/src/drivers/lenovo/Makefile.inc b/src/drivers/lenovo/Makefile.inc new file mode 100644 index 0000000000..c50db5b8be --- /dev/null +++ b/src/drivers/lenovo/Makefile.inc @@ -0,0 +1 @@ +ramstage-$(CONFIG_DRIVERS_LENOVO_WACOM) += wacom.c diff --git a/src/drivers/lenovo/lenovo.h b/src/drivers/lenovo/lenovo.h new file mode 100644 index 0000000000..4c441198b7 --- /dev/null +++ b/src/drivers/lenovo/lenovo.h @@ -0,0 +1,3 @@ +int drivers_lenovo_is_wacom_present(void); +void drivers_lenovo_serial_ports_ssdt_generate(const char *scope, + int have_dock_serial); diff --git a/src/drivers/lenovo/wacom.c b/src/drivers/lenovo/wacom.c new file mode 100644 index 0000000000..33a287910e --- /dev/null +++ b/src/drivers/lenovo/wacom.c @@ -0,0 +1,176 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Vladimir Serbinenko + * + * 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, or (at your + * option) any later version, 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 +#include +#include +#include +#include +#include +#include +#include "lenovo.h" +#include "drivers/i2c/at24rf08c/lenovo.h" + +static const char tablet_numbers[][5] = { + /* X60t. */ + "6363", "6364", "6365", "6366", + "6367", "6368", "7762", "7763", + "7764", "7767", "7768", "7769", + /* X201t. */ + "0053", "0831", "2985", "3093", + "3113", "3144", "3239", "4184", + "7448", "7449", "7450", "7453", + "2263", "2266", +}; + +int +drivers_lenovo_is_wacom_present(void) +{ + const char *pn; + int i; + static int result = -1; + device_t superio; + u8 sioid; + + if (result != -1) + return result; + + if (IS_ENABLED(CONFIG_DIGITIZER_PRESENT)) { + printk (BIOS_INFO, "Digitizer state forced as present\n"); + return (result = 1); + } + + if (IS_ENABLED(CONFIG_DIGITIZER_ABSENT)) { + printk (BIOS_INFO, "Digitizer state forced as absent\n"); + return (result = 0); + } + + superio = dev_find_slot_pnp (0x164e, 3); + if (!superio) { + printk (BIOS_INFO, "No Super I/O, skipping wacom\n"); + return (result = 0); + } + + /* Probe ID. */ + sioid = pnp_read_config(superio, 0x20); + if (sioid == 0xff) { + printk (BIOS_INFO, "Super I/O probe failed, skipping wacom\n"); + return (result = 0); + } + + pn = lenovo_mainboard_partnumber(); + if (!pn) + return (result = 0); + printk (BIOS_DEBUG, "Lenovo P/N is %s\n", pn); + for (i = 0; i < ARRAY_SIZE (tablet_numbers); i++) + if (memcmp (tablet_numbers[i], pn, 4) == 0) { + printk (BIOS_DEBUG, "Lenovo P/N %s is a tablet\n", pn); + return (result = 1); + } + printk (BIOS_DEBUG, "Lenovo P/N %s is not a tablet\n", pn); + return (result = 0); +} + +void +drivers_lenovo_serial_ports_ssdt_generate(const char *scope, + int have_dock_serial) +{ + int scopelen, devicelen, reslen, methodlen; + + scopelen = acpigen_write_scope(scope); + + if (drivers_lenovo_is_wacom_present()) { + /* Device op. */ + scopelen += acpigen_emit_byte(0x5b); + scopelen += acpigen_emit_byte(0x82); + devicelen = acpigen_write_len_f(); + devicelen += acpigen_emit_namestring("DTR"); + + devicelen += acpigen_write_name("_HID"); + devicelen += acpigen_emit_eisaid("WACF004"); + + devicelen += acpigen_write_name("_CRS"); + + reslen = acpigen_write_resourcetemplate_header(); + reslen += acpigen_write_io16(0x200, 0x200, 1, 8, 1); + reslen += acpigen_write_irq((1 << 5)); + + devicelen += reslen; + devicelen += acpigen_write_resourcetemplate_footer(reslen); + + /* method op */ + devicelen += acpigen_emit_byte(0x14); + methodlen = acpigen_write_len_f(); + methodlen += acpigen_emit_namestring("_STA"); + /* no fnarg */ + methodlen += acpigen_emit_byte(0x00); + /* return */ + methodlen += acpigen_emit_byte(0xa4); + methodlen += acpigen_write_byte(0xf); + + acpigen_patch_len(methodlen); + devicelen += methodlen; + + acpigen_patch_len(devicelen - 1); + scopelen += devicelen; + } + + if (have_dock_serial) { + /* Device op. */ + scopelen += acpigen_emit_byte(0x5b); + scopelen += acpigen_emit_byte(0x82); + devicelen = acpigen_write_len_f(); + devicelen += acpigen_emit_namestring("COMA"); + + devicelen += acpigen_write_name("_HID"); + devicelen += acpigen_emit_eisaid("PNP0501"); + devicelen += acpigen_write_name("_UID"); + /* Byte */ + devicelen += acpigen_write_byte(0x2); + + devicelen += acpigen_write_name("_CRS"); + + reslen = acpigen_write_resourcetemplate_header(); + reslen += acpigen_write_io16(0x3f8, 0x3f8, 1, 8, 1); + reslen += acpigen_write_irq(1 << 4); + + devicelen += reslen; + devicelen += acpigen_write_resourcetemplate_footer(reslen); + + /* method op */ + devicelen += acpigen_emit_byte(0x14); + methodlen = acpigen_write_len_f(); + methodlen += acpigen_emit_namestring("_STA"); + /* no fnarg */ + methodlen += acpigen_emit_byte(0x00); + /* return */ + methodlen += acpigen_emit_byte(0xa4); + methodlen += acpigen_write_byte(0xf); + acpigen_patch_len(methodlen); + + devicelen += methodlen; + + acpigen_patch_len(devicelen - 1); + scopelen += devicelen; + } + + acpigen_patch_len(scopelen - 1); +} -- cgit v1.2.3