From patchwork Wed May 15 08:58:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Binbin Zhou X-Patchwork-Id: 13664904 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id AA93E5A4D1 for ; Wed, 15 May 2024 08:59:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715763563; cv=none; b=ENZ0EAJLg94ND07r9x4Qom1b53PybZf4X4bOQUTpIga4qif00Rs0QJmNAXPwCtGJaktFmakq8+bQXnn377DKQC/SFrUcNStZeVOTOcX5RpJj8L/uuk6IDn03mEHah6tQAGq/BTe1ll/BsQcLqafGuazyIKEKXVL+guwntYaJP6U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715763563; c=relaxed/simple; bh=2/yYIWPsSGH2OZqPh/PkrHYnrpNTzy94dhgZnx28L3g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mWDpPKKKD8QBC+3qj0fx7dMECHB2iLCORItz4DTmRbfOBVfZ45wtBhU4PXxHzrEXaNCldpnKhwtpJ5FyFV0am1SxfuTqP3MKKo3yHjawOHNX1lbCVra7ha2W1sN6yLPlfcWQdMq02tL/ELKrlEGYIieBuNokCM18DIqSeqjZpIQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [112.20.112.247]) by gateway (Coremail) with SMTP id _____8AxpOpjeURm9gANAA--.19029S3; Wed, 15 May 2024 16:59:15 +0800 (CST) Received: from localhost.localdomain (unknown [112.20.112.247]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Cx67pceURmwn0gAA--.0S4; Wed, 15 May 2024 16:59:12 +0800 (CST) From: Binbin Zhou To: Binbin Zhou , Huacai Chen , Dmitry Torokhov Cc: Huacai Chen , loongson-kernel@lists.loongnix.cn, linux-input@vger.kernel.org, Xiaotian Wu , Binbin Zhou , Jon Xie , Jay Lee Subject: [PATCH v1 2/2] Input: Add driver for PixArt PS/2 touchpad Date: Wed, 15 May 2024 16:58:57 +0800 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Cx67pceURmwn0gAA--.0S4 X-CM-SenderInfo: p2kr3uplqex0o6or00hjvr0hdfq/ X-Coremail-Antispam: 1Uk129KBj9fXoWfJr45JryUGryDtw4DAr4UJrc_yoW8Gr17Ko W3JF9Ivws8tr13A395Kw1xJ3W3WanFka93Xw4akrWYvrWjyr1YgFy7tw1UAa13K34YvFs3 Xrnxtr48Xr4rurn5l-sFpf9Il3svdjkaLaAFLSUrUUUU1b8apTn2vfkv8UJUUUU8wcxFpf 9Il3svdxBIdaVrn0xqx4xG64xvF2IEw4CE5I8CrVC2j2Jv73VFW2AGmfu7bjvjm3AaLaJ3 UjIYCTnIWjp_UUUYy7kC6x804xWl14x267AKxVWUJVW8JwAFc2x0x2IEx4CE42xK8VAvwI 8IcIk0rVWrJVCq3wAFIxvE14AKwVWUXVWUAwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xG Y2AK021l84ACjcxK6xIIjxv20xvE14v26r4j6ryUM28EF7xvwVC0I7IYx2IY6xkF7I0E14 v26r4j6F4UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJwA2z4x0Y4vEx4A2jsIEc7CjxVAF wI0_Gr1j6F4UJwAaw2AFwI0_Jrv_JF1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2 xF0cIa020Ex4CE44I27wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_ Jw0_WrylYx0Ex4A2jsIE14v26r4j6F4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x 0EwIxGrwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwCFI7km07C267AK xVWUXVWUAwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67 AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVW8JVW5JwCI 42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMI IF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVF xhVjvjDU0xZFpf9x07jz2NtUUUUU= This patch introduces a driver for the PixArt PS/2 touchpad, which supports both clickpad and touchpad types. Co-developed-by: Jon Xie Signed-off-by: Jon Xie Co-developed-by: Jay Lee Signed-off-by: Jay Lee Signed-off-by: Binbin Zhou --- drivers/input/mouse/Kconfig | 12 ++ drivers/input/mouse/Makefile | 1 + drivers/input/mouse/pixart_ps2.c | 294 +++++++++++++++++++++++++++++ drivers/input/mouse/pixart_ps2.h | 31 +++ drivers/input/mouse/psmouse-base.c | 17 ++ drivers/input/mouse/psmouse.h | 1 + 6 files changed, 356 insertions(+) create mode 100644 drivers/input/mouse/pixart_ps2.c create mode 100644 drivers/input/mouse/pixart_ps2.h diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig index 833b643f0616..8a27a20d04b0 100644 --- a/drivers/input/mouse/Kconfig +++ b/drivers/input/mouse/Kconfig @@ -69,6 +69,18 @@ config MOUSE_PS2_LOGIPS2PP If unsure, say Y. +config MOUSE_PS2_PIXART + bool "PixArt PS/2 touchpad protocol extension" if EXPERT + default y + depends on MOUSE_PS2 + help + This driver supports the PixArt PS/2 touchpad found in some + laptops. + Say Y here if you have a PixArt PS/2 TouchPad connected to + your system. + + If unsure, say Y. + config MOUSE_PS2_SYNAPTICS bool "Synaptics PS/2 mouse protocol extension" if EXPERT default y diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile index a1336d5bee6f..563029551529 100644 --- a/drivers/input/mouse/Makefile +++ b/drivers/input/mouse/Makefile @@ -32,6 +32,7 @@ psmouse-$(CONFIG_MOUSE_PS2_ELANTECH) += elantech.o psmouse-$(CONFIG_MOUSE_PS2_OLPC) += hgpk.o psmouse-$(CONFIG_MOUSE_PS2_LOGIPS2PP) += logips2pp.o psmouse-$(CONFIG_MOUSE_PS2_LIFEBOOK) += lifebook.o +psmouse-$(CONFIG_MOUSE_PS2_PIXART) += pixart_ps2.o psmouse-$(CONFIG_MOUSE_PS2_SENTELIC) += sentelic.o psmouse-$(CONFIG_MOUSE_PS2_TRACKPOINT) += trackpoint.o psmouse-$(CONFIG_MOUSE_PS2_TOUCHKIT) += touchkit_ps2.o diff --git a/drivers/input/mouse/pixart_ps2.c b/drivers/input/mouse/pixart_ps2.c new file mode 100644 index 000000000000..532d84ab7654 --- /dev/null +++ b/drivers/input/mouse/pixart_ps2.c @@ -0,0 +1,294 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Pixart Touchpad Controller 1336U PS2 driver + * + * Author: Jon Xie + * Jay Lee + * Further cleanup and restructuring by: + * Binbin Zhou + * + * Copyright (C) 2021-2024 Pixart Imaging + * Copyright (C) 2024 Loongson Technology Corporation Limited. + * + */ + +#include +#include +#include +#include +#include +#include +#include "pixart_ps2.h" + +static int pixart_mode_detect(struct psmouse *psmouse) +{ + u8 param[1]; + + if (ps2_command(&psmouse->ps2dev, param, PIXART_CMD_REPORT_FORMAT)) + return -EIO; + + return (param[0] == 1) ? PIXART_MODE_ABS : PIXART_MODE_REL; +} + +static int pixart_type_detect(struct psmouse *psmouse) +{ + struct ps2dev *ps2dev = &psmouse->ps2dev; + u8 param[3]; + + param[0] = 0x0a; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + param[0] = 0x0; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); + param[0] = 0x0; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); + param[0] = 0x0; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); + param[0] = 0x03; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); + ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); + + return (param[0] == 0x0e) ? PIXART_TYPE_TOUCHPAD : PIXART_TYPE_CLICKPAD; +} + +static int pixart_intellimouse_detect(struct psmouse *psmouse) +{ + struct ps2dev *ps2dev = &psmouse->ps2dev; + u8 param[2]; + + param[0] = 200; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + param[0] = 100; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + param[0] = 80; + ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE); + ps2_command(ps2dev, param, PSMOUSE_CMD_GETID); + + return (param[0] == 3) ? 0 : -1; +} + +static void pixart_reset(struct psmouse *psmouse) +{ + ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); + msleep(100); + psmouse_reset(psmouse); +} + +static psmouse_ret_t pixart_process_abs_packet(struct psmouse *psmouse) +{ + struct pixart_data *priv = psmouse->private; + struct input_dev *dev = psmouse->dev; + u8 *packet = psmouse->packet; + u8 contact_cnt = (packet[0] >> 4) & 0x07; + unsigned int abs_x, abs_y; + int i, id, fingers = 0; + bool tip; + + if (contact_cnt > MAX_FINGERS || ((packet[0] & 0x8c) != 0x80)) + return PSMOUSE_BAD_DATA; + + if (contact_cnt == MAX_FINGERS && psmouse->pktcnt < psmouse->pktsize) + return PSMOUSE_GOOD_DATA; + else if (contact_cnt == 0 && psmouse->pktcnt < 5) + return PSMOUSE_GOOD_DATA; + else if (psmouse->pktcnt < (3 * contact_cnt + 2)) + return PSMOUSE_GOOD_DATA; + + for (i = 0; i < contact_cnt; i++) { + id = packet[3 * i + 3] & 0x07; + abs_y = ((packet[3 * i + 3] & 0x30) << 4) | packet[3 * i + 1]; + abs_x = ((packet[3 * i + 3] & 0xc0) << 2) | packet[3 * i + 2]; + + if (i == MAX_FINGERS - 1) + tip = packet[14] & (0x01 << 1); + else + tip = packet[3 * contact_cnt + 1] & (0x01 << (2 * i + 1)); + + input_mt_slot(dev, id); + input_mt_report_slot_state(dev, MT_TOOL_FINGER, tip); + if (tip) { + fingers++; + input_report_abs(dev, ABS_MT_POSITION_Y, abs_y); + input_report_abs(dev, ABS_MT_POSITION_X, abs_x); + } + } + + input_mt_drop_unused(dev); + input_mt_report_pointer_emulation(dev, false); + input_mt_report_finger_count(dev, fingers); + + if (priv->type == PIXART_TYPE_CLICKPAD) { + input_report_key(dev, BTN_LEFT, packet[0] & 0x03); + } else { + input_report_key(dev, BTN_LEFT, packet[0] & 0x01); + input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); + } + + input_mt_report_pointer_emulation(dev, true); + input_sync(dev); + + return PSMOUSE_FULL_PACKET; +} + +static psmouse_ret_t pixart_process_rel_packet(struct psmouse *psmouse) +{ + struct input_dev *dev = psmouse->dev; + u8 *packet = psmouse->packet; + int x = packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0; + int y = packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0; + int w = -(s8)packet[3]; + + if (psmouse->pktcnt < psmouse->pktsize) + return PSMOUSE_GOOD_DATA; + + psmouse_report_standard_buttons(dev, packet[0]); + input_report_rel(dev, REL_X, x); + input_report_rel(dev, REL_Y, y); + input_report_rel(dev, REL_WHEEL, w); + input_sync(dev); + + return PSMOUSE_FULL_PACKET; +} + +static void pixart_disconnect(struct psmouse *psmouse) +{ + psmouse_info(psmouse, "Device disconnect"); + pixart_reset(psmouse); + kfree(psmouse->private); + psmouse->private = NULL; +} + +static int pixart_reconnect(struct psmouse *psmouse) +{ + struct pixart_data *priv = psmouse->private; + + psmouse_info(psmouse, "Device reconnect"); + pixart_reset(psmouse); + + priv->mode = pixart_mode_detect(psmouse); + if (priv->mode < 0) { + psmouse_err(psmouse, "Unable to detect the PixArt device"); + return -EIO; + } + + if (priv->mode == PIXART_MODE_ABS) + ps2_command(&psmouse->ps2dev, NULL, PIXART_CMD_SWITCH_PROTO); + + return 0; +} + +static void pixart_set_abs_input_params(struct input_dev *dev, struct pixart_data *priv) +{ + __clear_bit(EV_REL, dev->evbit); + __clear_bit(REL_X, dev->relbit); + __clear_bit(REL_Y, dev->relbit); + __clear_bit(BTN_MIDDLE, dev->keybit); + + __set_bit(EV_KEY, dev->evbit); + __set_bit(BTN_LEFT, dev->keybit); + __set_bit(BTN_RIGHT, dev->keybit); + if (priv->type == PIXART_TYPE_CLICKPAD) { + __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); + __clear_bit(BTN_RIGHT, dev->keybit); + } + __set_bit(BTN_TOUCH, dev->keybit); + __set_bit(BTN_TOOL_FINGER, dev->keybit); + __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); + __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); + __set_bit(BTN_TOOL_QUADTAP, dev->keybit); + __set_bit(INPUT_PROP_POINTER, dev->propbit); + + __set_bit(EV_ABS, dev->evbit); + input_set_abs_params(dev, ABS_X, 0, ABS_MAX_X, 0, 0); + input_set_abs_params(dev, ABS_Y, 0, ABS_MAX_Y, 0, 0); + + input_set_abs_params(dev, ABS_MT_POSITION_X, 0, ABS_MAX_X, 0, 0); + input_set_abs_params(dev, ABS_MT_POSITION_Y, 0, ABS_MAX_Y, 0, 0); + + input_mt_init_slots(dev, SLOTS_NUMBER, 0); +} + +static void pixart_set_rel_input_params(struct input_dev *dev, struct pixart_data *priv) +{ + __set_bit(EV_KEY, dev->evbit); + __set_bit(EV_REL, dev->evbit); + __set_bit(BTN_LEFT, dev->keybit); + __set_bit(BTN_RIGHT, dev->keybit); + __set_bit(REL_X, dev->relbit); + __set_bit(REL_Y, dev->relbit); + __set_bit(REL_WHEEL, dev->relbit); + __set_bit(INPUT_PROP_POINTER, dev->propbit); +} + +int pixart_detect(struct psmouse *psmouse, bool set_properties) +{ + int mode, type; + + pixart_reset(psmouse); + + type = pixart_type_detect(psmouse); + if (type < 0) + return -ENODEV; + + mode = pixart_mode_detect(psmouse); + if (mode < 0) + return -ENODEV; + + psmouse_info(psmouse, "Detect PixArt Device."); + if (set_properties) { + psmouse->vendor = "PixArt"; + psmouse->name = (type == PIXART_TYPE_TOUCHPAD) ? + "touchpad" : "clickpad"; + } + + return 0; +} + +int pixart_init(struct psmouse *psmouse) +{ + struct pixart_data *priv; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + psmouse->private = priv; + pixart_reset(psmouse); + + priv->type = pixart_type_detect(psmouse); + if (priv->type < 0) + goto fail; + + priv->mode = pixart_mode_detect(psmouse); + if (priv->mode < 0) { + psmouse_err(psmouse, "Unable to initialize the PixArt device\n"); + goto fail; + } + + if (priv->mode == PIXART_MODE_ABS) { + ps2_command(&psmouse->ps2dev, NULL, PIXART_CMD_SWITCH_PROTO); + pixart_set_abs_input_params(psmouse->dev, priv); + psmouse->protocol_handler = pixart_process_abs_packet; + psmouse->pktsize = 15; + } else { + pixart_reset(psmouse); + pixart_intellimouse_detect(psmouse); + pixart_set_rel_input_params(psmouse->dev, priv); + psmouse->protocol_handler = pixart_process_rel_packet; + psmouse->pktsize = 4; + } + + psmouse->disconnect = pixart_disconnect; + psmouse->reconnect = pixart_reconnect; + psmouse->cleanup = pixart_reset; + /* resync is not supported yet */ + psmouse->resync_time = 0; + + psmouse_info(psmouse, "Set device as Type: %x, mode: %x", priv->type, priv->mode); + return 0; + +fail: + pixart_reset(psmouse); + kfree(priv); + psmouse->private = NULL; + return -1; +} diff --git a/drivers/input/mouse/pixart_ps2.h b/drivers/input/mouse/pixart_ps2.h new file mode 100644 index 000000000000..224ab3a4f739 --- /dev/null +++ b/drivers/input/mouse/pixart_ps2.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _PIXART_PS2_H +#define _PIXART_PS2_H + +#include "psmouse.h" + +#define ABS_MAX_X 1023 +#define ABS_MAX_Y 579 +#define MAX_FINGERS 4 +#define SLOTS_NUMBER MAX_FINGERS + +#define PIXART_CMD_REPORT_FORMAT 0x01d8 +#define PIXART_CMD_SWITCH_PROTO 0x00de + +#define PIXART_MODE_REL 0 +#define PIXART_MODE_ABS 1 + +#define PIXART_TYPE_CLICKPAD 0 +#define PIXART_TYPE_TOUCHPAD 1 + +struct pixart_data { + int mode; + int type; + int x_max; + int y_max; +}; + +int pixart_detect(struct psmouse *psmouse, bool set_properties); +int pixart_init(struct psmouse *psmouse); + +#endif /* _PIXART_PS2_H */ diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index a0aac76b1e41..41af3460077d 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -36,6 +36,7 @@ #include "focaltech.h" #include "vmmouse.h" #include "byd.h" +#include "pixart_ps2.h" #define DRIVER_DESC "PS/2 mouse driver" @@ -905,6 +906,15 @@ static const struct psmouse_protocol psmouse_protocols[] = { .detect = byd_detect, .init = byd_init, }, +#endif +#ifdef CONFIG_MOUSE_PS2_PIXART + { + .type = PSMOUSE_PIXART, + .name = "PixArtPS/2", + .alias = "pixart", + .detect = pixart_detect, + .init = pixart_init, + }, #endif { .type = PSMOUSE_AUTO, @@ -1172,6 +1182,13 @@ static int psmouse_extensions(struct psmouse *psmouse, return ret; } + /* Try PixArt touchpad */ + if (max_proto > PSMOUSE_IMEX && + psmouse_try_protocol(psmouse, PSMOUSE_PIXART, &max_proto, + set_properties, true)) { + return PSMOUSE_PIXART; + } + if (max_proto > PSMOUSE_IMEX) { if (psmouse_try_protocol(psmouse, PSMOUSE_GENPS, &max_proto, set_properties, true)) diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h index b05c6fbae7e3..23f7fa7243cb 100644 --- a/drivers/input/mouse/psmouse.h +++ b/drivers/input/mouse/psmouse.h @@ -69,6 +69,7 @@ enum psmouse_type { PSMOUSE_BYD, PSMOUSE_SYNAPTICS_SMBUS, PSMOUSE_ELANTECH_SMBUS, + PSMOUSE_PIXART, PSMOUSE_AUTO /* This one should always be last */ };