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-rw-r--r--src/drivers/lenovo/Kconfig29
-rw-r--r--src/drivers/lenovo/Makefile.inc1
-rw-r--r--src/drivers/lenovo/lenovo.h3
-rw-r--r--src/drivers/lenovo/wacom.c176
4 files changed, 209 insertions, 0 deletions
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 <types.h>
+#include <console/console.h>
+#include <arch/acpi.h>
+#include <arch/acpigen.h>
+#include <device/device.h>
+#include <device/pnp.h>
+#include <string.h>
+#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);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 10:39:10 +0000