summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Documentation/ABI/testing/sysfs-driver-hid-thingm23
-rw-r--r--drivers/hid/Kconfig8
-rw-r--r--drivers/hid/Makefile1
-rw-r--r--drivers/hid/hid-core.c2
-rw-r--r--drivers/hid/hid-rmi.c888
-rw-r--r--drivers/hid/hid-thingm.c361
-rw-r--r--drivers/leds/Kconfig2
-rw-r--r--include/linux/hid.h2
8 files changed, 1104 insertions, 183 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-thingm b/Documentation/ABI/testing/sysfs-driver-hid-thingm
deleted file mode 100644
index abcffeedd20a..000000000000
--- a/Documentation/ABI/testing/sysfs-driver-hid-thingm
+++ /dev/null
@@ -1,23 +0,0 @@
-What: /sys/class/leds/blink1::<serial>/rgb
-Date: January 2013
-Contact: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
-Description: The ThingM blink1 is an USB RGB LED. The color notation is
- 3-byte hexadecimal. Read this attribute to get the last set
- color. Write the 24-bit hexadecimal color to change the current
- LED color. The default color is full white (0xFFFFFF).
- For instance, set the color to green with: echo 00FF00 > rgb
-
-What: /sys/class/leds/blink1::<serial>/fade
-Date: January 2013
-Contact: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
-Description: This attribute allows to set a fade time in milliseconds for
- the next color change. Read the attribute to know the current
- fade time. The default value is set to 0 (no fade time). For
- instance, set a fade time of 2 seconds with: echo 2000 > fade
-
-What: /sys/class/leds/blink1::<serial>/play
-Date: January 2013
-Contact: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
-Description: This attribute is used to play/pause the light patterns. Write 1
- to start playing, 0 to stop. Reading this attribute returns the
- current playing status.
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 7af9d0b5dea1..762f15d6ed88 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -657,6 +657,14 @@ config HID_SUNPLUS
---help---
Support for Sunplus wireless desktop.
+config HID_RMI
+ tristate "Synaptics RMI4 device support"
+ depends on HID
+ ---help---
+ Support for Synaptics RMI4 touchpads.
+ Say Y here if you have a Synaptics RMI4 touchpads over i2c-hid or usbhid
+ and want support for its special functionalities.
+
config HID_GREENASIA
tristate "GreenAsia (Product ID 0x12) game controller support"
depends on HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index fc712dde02a4..a6fa6baf368e 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -97,6 +97,7 @@ obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o hid-roccat-common.o \
hid-roccat-arvo.o hid-roccat-isku.o hid-roccat-kone.o \
hid-roccat-koneplus.o hid-roccat-konepure.o hid-roccat-kovaplus.o \
hid-roccat-lua.o hid-roccat-pyra.o hid-roccat-ryos.o hid-roccat-savu.o
+obj-$(CONFIG_HID_RMI) += hid-rmi.o
obj-$(CONFIG_HID_SAITEK) += hid-saitek.o
obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o
obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9e8064205bc7..f05255d92de7 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1882,6 +1882,8 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) },
+ { HID_I2C_DEVICE(USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
new file mode 100644
index 000000000000..7da9509894de
--- /dev/null
+++ b/drivers/hid/hid-rmi.c
@@ -0,0 +1,888 @@
+/*
+ * Copyright (c) 2013 Andrew Duggan <aduggan@synaptics.com>
+ * Copyright (c) 2013 Synaptics Incorporated
+ * Copyright (c) 2014 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+ * Copyright (c) 2014 Red Hat, Inc
+ *
+ * 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; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/hid.h>
+#include <linux/input.h>
+#include <linux/input/mt.h>
+#include <linux/module.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include "hid-ids.h"
+
+#define RMI_MOUSE_REPORT_ID 0x01 /* Mouse emulation Report */
+#define RMI_WRITE_REPORT_ID 0x09 /* Output Report */
+#define RMI_READ_ADDR_REPORT_ID 0x0a /* Output Report */
+#define RMI_READ_DATA_REPORT_ID 0x0b /* Input Report */
+#define RMI_ATTN_REPORT_ID 0x0c /* Input Report */
+#define RMI_SET_RMI_MODE_REPORT_ID 0x0f /* Feature Report */
+
+/* flags */
+#define RMI_READ_REQUEST_PENDING BIT(0)
+#define RMI_READ_DATA_PENDING BIT(1)
+#define RMI_STARTED BIT(2)
+
+enum rmi_mode_type {
+ RMI_MODE_OFF = 0,
+ RMI_MODE_ATTN_REPORTS = 1,
+ RMI_MODE_NO_PACKED_ATTN_REPORTS = 2,
+};
+
+struct rmi_function {
+ unsigned page; /* page of the function */
+ u16 query_base_addr; /* base address for queries */
+ u16 command_base_addr; /* base address for commands */
+ u16 control_base_addr; /* base address for controls */
+ u16 data_base_addr; /* base address for datas */
+ unsigned int interrupt_base; /* cross-function interrupt number
+ * (uniq in the device)*/
+ unsigned int interrupt_count; /* number of interrupts */
+ unsigned int report_size; /* size of a report */
+ unsigned long irq_mask; /* mask of the interrupts
+ * (to be applied against ATTN IRQ) */
+};
+
+/**
+ * struct rmi_data - stores information for hid communication
+ *
+ * @page_mutex: Locks current page to avoid changing pages in unexpected ways.
+ * @page: Keeps track of the current virtual page
+ *
+ * @wait: Used for waiting for read data
+ *
+ * @writeReport: output buffer when writing RMI registers
+ * @readReport: input buffer when reading RMI registers
+ *
+ * @input_report_size: size of an input report (advertised by HID)
+ * @output_report_size: size of an output report (advertised by HID)
+ *
+ * @flags: flags for the current device (started, reading, etc...)
+ *
+ * @f11: placeholder of internal RMI function F11 description
+ * @f30: placeholder of internal RMI function F30 description
+ *
+ * @max_fingers: maximum finger count reported by the device
+ * @max_x: maximum x value reported by the device
+ * @max_y: maximum y value reported by the device
+ *
+ * @gpio_led_count: count of GPIOs + LEDs reported by F30
+ * @button_count: actual physical buttons count
+ * @button_mask: button mask used to decode GPIO ATTN reports
+ * @button_state_mask: pull state of the buttons
+ *
+ * @input: pointer to the kernel input device
+ *
+ * @reset_work: worker which will be called in case of a mouse report
+ * @hdev: pointer to the struct hid_device
+ */
+struct rmi_data {
+ struct mutex page_mutex;
+ int page;
+
+ wait_queue_head_t wait;
+
+ u8 *writeReport;
+ u8 *readReport;
+
+ int input_report_size;
+ int output_report_size;
+
+ unsigned long flags;
+
+ struct rmi_function f11;
+ struct rmi_function f30;
+
+ unsigned int max_fingers;
+ unsigned int max_x;
+ unsigned int max_y;
+ unsigned int x_size_mm;
+ unsigned int y_size_mm;
+
+ unsigned int gpio_led_count;
+ unsigned int button_count;
+ unsigned long button_mask;
+ unsigned long button_state_mask;
+
+ struct input_dev *input;
+
+ struct work_struct reset_work;
+ struct hid_device *hdev;
+};
+
+#define RMI_PAGE(addr) (((addr) >> 8) & 0xff)
+
+static int rmi_write_report(struct hid_device *hdev, u8 *report, int len);
+
+/**
+ * rmi_set_page - Set RMI page
+ * @hdev: The pointer to the hid_device struct
+ * @page: The new page address.
+ *
+ * RMI devices have 16-bit addressing, but some of the physical
+ * implementations (like SMBus) only have 8-bit addressing. So RMI implements
+ * a page address at 0xff of every page so we can reliable page addresses
+ * every 256 registers.
+ *
+ * The page_mutex lock must be held when this function is entered.
+ *
+ * Returns zero on success, non-zero on failure.
+ */
+static int rmi_set_page(struct hid_device *hdev, u8 page)
+{
+ struct rmi_data *data = hid_get_drvdata(hdev);
+ int retval;
+
+ data->writeReport[0] = RMI_WRITE_REPORT_ID;
+ data->writeReport[1] = 1;
+ data->writeReport[2] = 0xFF;
+ data->writeReport[4] = page;
+
+ retval = rmi_write_report(hdev, data->writeReport,
+ data->output_report_size);
+ if (retval != data->output_report_size) {
+ dev_err(&hdev->dev,
+ "%s: set page failed: %d.", __func__, retval);
+ return retval;
+ }
+
+ data->page = page;
+ return 0;
+}
+
+static int rmi_set_mode(struct hid_device *hdev, u8 mode)
+{
+ int ret;
+ u8 txbuf[2] = {RMI_SET_RMI_MODE_REPORT_ID, mode};
+
+ ret = hid_hw_raw_request(hdev, RMI_SET_RMI_MODE_REPORT_ID, txbuf,
+ sizeof(txbuf), HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "unable to set rmi mode to %d (%d)\n", mode,
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rmi_write_report(struct hid_device *hdev, u8 *report, int len)
+{
+ int ret;
+
+ ret = hid_hw_output_report(hdev, (void *)report, len);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed to write hid report (%d)\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int rmi_read_block(struct hid_device *hdev, u16 addr, void *buf,
+ const int len)
+{
+ struct rmi_data *data = hid_get_drvdata(hdev);
+ int ret;
+ int bytes_read;
+ int bytes_needed;
+ int retries;
+ int read_input_count;
+
+ mutex_lock(&data->page_mutex);
+
+ if (RMI_PAGE(addr) != data->page) {
+ ret = rmi_set_page(hdev, RMI_PAGE(addr));
+ if (ret < 0)
+ goto exit;
+ }
+
+ for (retries = 5; retries > 0; retries--) {
+ data->writeReport[0] = RMI_READ_ADDR_REPORT_ID;
+ data->writeReport[1] = 0; /* old 1 byte read count */
+ data->writeReport[2] = addr & 0xFF;
+ data->writeReport[3] = (addr >> 8) & 0xFF;
+ data->writeReport[4] = len & 0xFF;
+ data->writeReport[5] = (len >> 8) & 0xFF;
+
+ set_bit(RMI_READ_REQUEST_PENDING, &data->flags);
+
+ ret = rmi_write_report(hdev, data->writeReport,
+ data->output_report_size);
+ if (ret != data->output_report_size) {
+ clear_bit(RMI_READ_REQUEST_PENDING, &data->flags);
+ dev_err(&hdev->dev,
+ "failed to write request output report (%d)\n",
+ ret);
+ goto exit;
+ }
+
+ bytes_read = 0;
+ bytes_needed = len;
+ while (bytes_read < len) {
+ if (!wait_event_timeout(data->wait,
+ test_bit(RMI_READ_DATA_PENDING, &data->flags),
+ msecs_to_jiffies(1000))) {
+ hid_warn(hdev, "%s: timeout elapsed\n",
+ __func__);
+ ret = -EAGAIN;
+ break;
+ }
+
+ read_input_count = data->readReport[1];
+ memcpy(buf + bytes_read, &data->readReport[2],
+ read_input_count < bytes_needed ?
+ read_input_count : bytes_needed);
+
+ bytes_read += read_input_count;
+ bytes_needed -= read_input_count;
+ clear_bit(RMI_READ_DATA_PENDING, &data->flags);
+ }
+
+ if (ret >= 0) {
+ ret = 0;
+ break;
+ }
+ }
+
+exit:
+ clear_bit(RMI_READ_REQUEST_PENDING, &data->flags);
+ mutex_unlock(&data->page_mutex);
+ return ret;
+}
+
+static inline int rmi_read(struct hid_device *hdev, u16 addr, void *buf)
+{
+ return rmi_read_block(hdev, addr, buf, 1);
+}
+
+static void rmi_f11_process_touch(struct rmi_data *hdata, int slot,
+ u8 finger_state, u8 *touch_data)
+{
+ int x, y, wx, wy;
+ int wide, major, minor;
+ int z;
+
+ input_mt_slot(hdata->input, slot);
+ input_mt_report_slot_state(hdata->input, MT_TOOL_FINGER,
+ finger_state == 0x01);
+ if (finger_state == 0x01) {
+ x = (touch_data[0] << 4) | (touch_data[2] & 0x07);
+ y = (touch_data[1] << 4) | (touch_data[2] >> 4);
+ wx = touch_data[3] & 0x07;
+ wy = touch_data[3] >> 4;
+ wide = (wx > wy);
+ major = max(wx, wy);
+ minor = min(wx, wy);
+ z = touch_data[4];
+
+ /* y is inverted */
+ y = hdata->max_y - y;
+
+ input_event(hdata->input, EV_ABS, ABS_MT_POSITION_X, x);
+ input_event(hdata->input, EV_ABS, ABS_MT_POSITION_Y, y);
+ input_event(hdata->input, EV_ABS, ABS_MT_ORIENTATION, wide);
+ input_event(hdata->input, EV_ABS, ABS_MT_PRESSURE, z);
+ input_event(hdata->input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
+ input_event(hdata->input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
+ }
+}
+
+static void rmi_reset_work(struct work_struct *work)
+{
+ struct rmi_data *hdata = container_of(work, struct rmi_data,
+ reset_work);
+
+ /* switch the device to RMI if we receive a generic mouse report */
+ rmi_set_mode(hdata->hdev, RMI_MODE_ATTN_REPORTS);
+}
+
+static inline int rmi_schedule_reset(struct hid_device *hdev)
+{
+ struct rmi_data *hdata = hid_get_drvdata(hdev);
+ return schedule_work(&hdata->reset_work);
+}
+
+static int rmi_f11_input_event(struct hid_device *hdev, u8 irq, u8 *data,
+ int size)
+{
+ struct rmi_data *hdata = hid_get_drvdata(hdev);
+ int offset;
+ int i;
+
+ if (size < hdata->f11.report_size)
+ return 0;
+
+ if (!(irq & hdata->f11.irq_mask))
+ return 0;
+
+ offset = (hdata->max_fingers >> 2) + 1;
+ for (i = 0; i < hdata->max_fingers; i++) {
+ int fs_byte_position = i >> 2;
+ int fs_bit_position = (i & 0x3) << 1;
+ int finger_state = (data[fs_byte_position] >> fs_bit_position) &
+ 0x03;
+
+ rmi_f11_process_touch(hdata, i, finger_state,
+ &data[offset + 5 * i]);
+ }
+ input_mt_sync_frame(hdata->input);
+ input_sync(hdata->input);
+ return hdata->f11.report_size;
+}
+
+static int rmi_f30_input_event(struct hid_device *hdev, u8 irq, u8 *data,
+ int size)
+{
+ struct rmi_data *hdata = hid_get_drvdata(hdev);
+ int i;
+ int button = 0;
+ bool value;
+
+ if (!(irq & hdata->f30.irq_mask))
+ return 0;
+
+ for (i = 0; i < hdata->gpio_led_count; i++) {
+ if (test_bit(i, &hdata->button_mask)) {
+ value = (data[i / 8] >> (i & 0x07)) & BIT(0);
+ if (test_bit(i, &hdata->button_state_mask))
+ value = !value;
+ input_event(hdata->input, EV_KEY, BTN_LEFT + button++,
+ value);
+ }
+ }
+ return hdata->f30.report_size;
+}
+
+static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
+{
+ struct rmi_data *hdata = hid_get_drvdata(hdev);
+ unsigned long irq_mask = 0;
+ unsigned index = 2;
+
+ if (!(test_bit(RMI_STARTED, &hdata->flags)))
+ return 0;
+
+ irq_mask |= hdata->f11.irq_mask;
+ irq_mask |= hdata->f30.irq_mask;
+
+ if (data[1] & ~irq_mask)
+ hid_warn(hdev, "unknown intr source:%02lx %s:%d\n",
+ data[1] & ~irq_mask, __FILE__, __LINE__);
+
+ if (hdata->f11.interrupt_base < hdata->f30.interrupt_base) {
+ index += rmi_f11_input_event(hdev, data[1], &data[index],
+ size - index);
+ index += rmi_f30_input_event(hdev, data[1], &data[index],
+ size - index);
+ } else {
+ index += rmi_f30_input_event(hdev, data[1], &data[index],
+ size - index);
+ index += rmi_f11_input_event(hdev, data[1], &data[index],
+ size - index);
+ }
+
+ return 1;
+}
+
+static int rmi_read_data_event(struct hid_device *hdev, u8 *data, int size)
+{
+ struct rmi_data *hdata = hid_get_drvdata(hdev);
+
+ if (!test_bit(RMI_READ_REQUEST_PENDING, &hdata->flags)) {
+ hid_err(hdev, "no read request pending\n");
+ return 0;
+ }
+
+ memcpy(hdata->readReport, data, size < hdata->input_report_size ?
+ size : hdata->input_report_size);
+ set_bit(RMI_READ_DATA_PENDING, &hdata->flags);
+ wake_up(&hdata->wait);
+
+ return 1;
+}
+
+static int rmi_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *data, int size)
+{
+ switch (data[0]) {
+ case RMI_READ_DATA_REPORT_ID:
+ return rmi_read_data_event(hdev, data, size);
+ case RMI_ATTN_REPORT_ID:
+ return rmi_input_event(hdev, data, size);
+ case RMI_MOUSE_REPORT_ID:
+ rmi_schedule_reset(hdev);
+ break;
+ }
+
+ return 0;
+}
+
+static int rmi_post_reset(struct hid_device *hdev)
+{
+ return rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS);
+}
+
+static int rmi_post_resume(struct hid_device *hdev)
+{
+ return rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS);
+}
+
+#define RMI4_MAX_PAGE 0xff
+#define RMI4_PAGE_SIZE 0x0100
+
+#define PDT_START_SCAN_LOCATION 0x00e9
+#define PDT_END_SCAN_LOCATION 0x0005
+#define RMI4_END_OF_PDT(id) ((id) == 0x00 || (id) == 0xff)
+
+struct pdt_entry {
+ u8 query_base_addr:8;
+ u8 command_base_addr:8;
+ u8 control_base_addr:8;
+ u8 data_base_addr:8;
+ u8 interrupt_source_count:3;
+ u8 bits3and4:2;
+ u8 function_version:2;
+ u8 bit7:1;
+ u8 function_number:8;
+} __attribute__((__packed__));
+
+static inline unsigned long rmi_gen_mask(unsigned irq_base, unsigned irq_count)
+{
+ return GENMASK(irq_count + irq_base - 1, irq_base);
+}
+
+static void rmi_register_function(struct rmi_data *data,
+ struct pdt_entry *pdt_entry, int page, unsigned interrupt_count)
+{
+ struct rmi_function *f = NULL;
+ u16 page_base = page << 8;
+
+ switch (pdt_entry->function_number) {
+ case 0x11:
+ f = &data->f11;
+ break;
+ case 0x30:
+ f = &data->f30;
+ break;
+ }
+
+ if (f) {
+ f->page = page;
+ f->query_base_addr = page_base | pdt_entry->query_base_addr;
+ f->command_base_addr = page_base | pdt_entry->command_base_addr;
+ f->control_base_addr = page_base | pdt_entry->control_base_addr;
+ f->data_base_addr = page_base | pdt_entry->data_base_addr;
+ f->interrupt_base = interrupt_count;
+ f->interrupt_count = pdt_entry->interrupt_source_count;
+ f->irq_mask = rmi_gen_mask(f->interrupt_base,
+ f->interrupt_count);
+ }
+}
+
+static int rmi_scan_pdt(struct hid_device *hdev)
+{
+ struct rmi_data *data = hid_get_drvdata(hdev);
+ struct pdt_entry entry;
+ int page;
+ bool page_has_function;
+ int i;
+ int retval;
+ int interrupt = 0;
+ u16 page_start, pdt_start , pdt_end;
+
+ hid_info(hdev, "Scanning PDT...\n");
+
+ for (page = 0; (page <= RMI4_MAX_PAGE); page++) {
+ page_start = RMI4_PAGE_SIZE * page;
+ pdt_start = page_start + PDT_START_SCAN_LOCATION;
+ pdt_end = page_start + PDT_END_SCAN_LOCATION;
+
+ page_has_function = false;
+ for (i = pdt_start; i >= pdt_end; i -= sizeof(entry)) {
+ retval = rmi_read_block(hdev, i, &entry, sizeof(entry));
+ if (retval) {
+ hid_err(hdev,
+ "Read of PDT entry at %#06x failed.\n",
+ i);
+ goto error_exit;
+ }
+
+ if (RMI4_END_OF_PDT(entry.function_number))
+ break;
+
+ page_has_function = true;
+
+ hid_info(hdev, "Found F%02X on page %#04x\n",
+ entry.function_number, page);
+
+ rmi_register_function(data, &entry, page, interrupt);
+ interrupt += entry.interrupt_source_count;
+ }
+
+ if (!page_has_function)
+ break;
+ }
+
+ hid_info(hdev, "%s: Done with PDT scan.\n", __func__);
+ retval = 0;
+
+error_exit:
+ return retval;
+}
+
+static int rmi_populate_f11(struct hid_device *hdev)
+{
+ struct rmi_data *data = hid_get_drvdata(hdev);
+ u8 buf[20];
+ int ret;
+ bool has_query12;
+ bool has_physical_props;
+ unsigned x_size, y_size;
+
+ if (!data->f11.query_base_addr) {
+ hid_err(hdev, "No 2D sensor found, giving up.\n");
+ return -ENODEV;
+ }
+
+ /* query 0 contains some useful information */
+ ret = rmi_read(hdev, data->f11.query_base_addr, buf);
+ if (ret) {
+ hid_err(hdev, "can not get query 0: %d.\n", ret);
+ return ret;
+ }
+ has_query12 = !!(buf[0] & BIT(5));
+
+ /* query 1 to get the max number of fingers */
+ ret = rmi_read(hdev, data->f11.query_base_addr + 1, buf);
+ if (ret) {
+ hid_err(hdev, "can not get NumberOfFingers: %d.\n", ret);
+ return ret;
+ }
+ data->max_fingers = (buf[0] & 0x07) + 1;
+ if (data->max_fingers > 5)
+ data->max_fingers = 10;
+
+ data->f11.report_size = data->max_fingers * 5 +
+ DIV_ROUND_UP(data->max_fingers, 4);
+
+ if (!(buf[0] & BIT(4))) {
+ hid_err(hdev, "No absolute events, giving up.\n");
+ return -ENODEV;
+ }
+
+ /*
+ * query 12 to know if the physical properties are reported
+ * (query 12 is at offset 10 for HID devices)
+ */
+ if (has_query12) {
+ ret = rmi_read(hdev, data->f11.query_base_addr + 10, buf);
+ if (ret) {
+ hid_err(hdev, "can not get query 12: %d.\n", ret);
+ return ret;
+ }
+ has_physical_props = !!(buf[0] & BIT(5));
+
+ if (has_physical_props) {
+ ret = rmi_read_block(hdev,
+ data->f11.query_base_addr + 11, buf, 4);
+ if (ret) {
+ hid_err(hdev, "can not read query 15-18: %d.\n",
+ ret);
+ return ret;
+ }
+
+ x_size = buf[0] | (buf[1] << 8);
+ y_size = buf[2] | (buf[3] << 8);
+
+ data->x_size_mm = DIV_ROUND_CLOSEST(x_size, 10);
+ data->y_size_mm = DIV_ROUND_CLOSEST(y_size, 10);
+
+ hid_info(hdev, "%s: size in mm: %d x %d\n",
+ __func__, data->x_size_mm, data->y_size_mm);
+ }
+ }
+
+ /* retrieve the ctrl registers */
+ ret = rmi_read_block(hdev, data->f11.control_base_addr, buf, 20);
+ if (ret) {
+ hid_err(hdev, "can not read ctrl block of size 20: %d.\n", ret);
+ return ret;
+ }
+
+ data->max_x = buf[6] | (buf[7] << 8);
+ data->max_y = buf[8] | (buf[9] << 8);
+
+ return 0;
+}
+
+static int rmi_populate_f30(struct hid_device *hdev)
+{
+ struct rmi_data *data = hid_get_drvdata(hdev);
+ u8 buf[20];
+ int ret;
+ bool has_gpio, has_led;
+ unsigned bytes_per_ctrl;
+ u8 ctrl2_addr;
+ int ctrl2_3_length;
+ int i;
+
+ /* function F30 is for physical buttons */
+ if (!data->f30.query_base_addr) {
+ hid_err(hdev, "No GPIO/LEDs found, giving up.\n");
+ return -ENODEV;
+ }
+
+ ret = rmi_read_block(hdev, data->f30.query_base_addr, buf, 2);
+ if (ret) {
+ hid_err(hdev, "can not get F30 query registers: %d.\n", ret);
+ return ret;
+ }
+
+ has_gpio = !!(buf[0] & BIT(3));
+ has_led = !!(buf[0] & BIT(2));
+ data->gpio_led_count = buf[1] & 0x1f;
+
+ /* retrieve ctrl 2 & 3 registers */
+ bytes_per_ctrl = (data->gpio_led_count + 7) / 8;
+ /* Ctrl0 is present only if both has_gpio and has_led are set*/
+ ctrl2_addr = (has_gpio && has_led) ? bytes_per_ctrl : 0;
+ /* Ctrl1 is always be present */
+ ctrl2_addr += bytes_per_ctrl;
+ ctrl2_3_length = 2 * bytes_per_ctrl;
+
+ data->f30.report_size = bytes_per_ctrl;
+
+ ret = rmi_read_block(hdev, data->f30.control_base_addr + ctrl2_addr,
+ buf, ctrl2_3_length);
+ if (ret) {
+ hid_err(hdev, "can not read ctrl 2&3 block of size %d: %d.\n",
+ ctrl2_3_length, ret);
+ return ret;
+ }
+
+ for (i = 0; i < data->gpio_led_count; i++) {
+ int byte_position = i >> 3;
+ int bit_position = i & 0x07;
+ u8 dir_byte = buf[byte_position];
+ u8 data_byte = buf[byte_position + bytes_per_ctrl];
+ bool dir = (dir_byte >> bit_position) & BIT(0);
+ bool dat = (data_byte >> bit_position) & BIT(0);
+
+ if (dir == 0) {
+ /* input mode */
+ if (dat) {
+ /* actual buttons have pull up resistor */
+ data->button_count++;
+ set_bit(i, &data->button_mask);
+ set_bit(i, &data->button_state_mask);
+ }
+ }
+
+ }
+
+ return 0;
+}
+
+static int rmi_populate(struct hid_device *hdev)
+{
+ int ret;
+
+ ret = rmi_scan_pdt(hdev);
+ if (ret) {
+ hid_err(hdev, "PDT scan failed with code %d.\n", ret);
+ return ret;
+ }
+
+ ret = rmi_populate_f11(hdev);
+ if (ret) {
+ hid_err(hdev, "Error while initializing F11 (%d).\n", ret);
+ return ret;
+ }
+
+ ret = rmi_populate_f30(hdev);
+ if (ret)
+ hid_warn(hdev, "Error while initializing F30 (%d).\n", ret);
+
+ return 0;
+}
+
+static void rmi_input_configured(struct hid_device *hdev, struct hid_input *hi)
+{
+ struct rmi_data *data = hid_get_drvdata(hdev);
+ struct input_dev *input = hi->input;
+ int ret;
+ int res_x, res_y, i;
+
+ data->input = input;
+
+ hid_dbg(hdev, "Opening low level driver\n");
+ ret = hid_hw_open(hdev);
+ if (ret)
+ return;
+
+ /* Allow incoming hid reports */
+ hid_device_io_start(hdev);
+
+ ret = rmi_set_mode(hdev, RMI_MODE_ATTN_REPORTS);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed to set rmi mode\n");
+ goto exit;
+ }
+
+ ret = rmi_set_page(hdev, 0);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed to set page select to 0.\n");
+ goto exit;
+ }
+
+ ret = rmi_populate(hdev);
+ if (ret)
+ goto exit;
+
+ __set_bit(EV_ABS, input->evbit);
+ input_set_abs_params(input, ABS_MT_POSITION_X, 1, data->max_x, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y, 1, data->max_y, 0, 0);
+
+ if (data->x_size_mm && data->x_size_mm) {
+ res_x = (data->max_x - 1) / data->x_size_mm;
+ res_y = (data->max_y - 1) / data->x_size_mm;
+
+ input_abs_set_res(input, ABS_MT_POSITION_X, res_x);
+ input_abs_set_res(input, ABS_MT_POSITION_Y, res_y);
+ }
+
+ input_set_abs_params(input, ABS_MT_ORIENTATION, 0, 1, 0, 0);
+ input_set_abs_params(input, ABS_MT_PRESSURE, 0, 0xff, 0, 0);
+ input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 0x0f, 0, 0);
+ input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 0x0f, 0, 0);
+
+ input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER);
+
+ if (data->button_count) {
+ __set_bit(EV_KEY, input->evbit);
+ for (i = 0; i < data->button_count; i++)
+ __set_bit(BTN_LEFT + i, input->keybit);
+
+ if (data->button_count == 1)
+ __set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
+ }
+
+ set_bit(RMI_STARTED, &data->flags);
+
+exit:
+ hid_device_io_stop(hdev);
+ hid_hw_close(hdev);
+}
+
+static int rmi_input_mapping(struct hid_device *hdev,
+ struct hid_input *hi, struct hid_field *field,
+ struct hid_usage *usage, unsigned long **bit, int *max)
+{
+ /* we want to make HID ignore the advertised HID collection */
+ return -1;
+}
+
+static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ struct rmi_data *data = NULL;
+ int ret;
+ size_t alloc_size;
+
+ data = devm_kzalloc(&hdev->dev, sizeof(struct rmi_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ INIT_WORK(&data->reset_work, rmi_reset_work);
+ data->hdev = hdev;
+
+ hid_set_drvdata(hdev, data);
+
+ hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "parse failed\n");
+ return ret;
+ }
+
+ data->input_report_size = (hdev->report_enum[HID_INPUT_REPORT]
+ .report_id_hash[RMI_ATTN_REPORT_ID]->size >> 3)
+ + 1 /* report id */;
+ data->output_report_size = (hdev->report_enum[HID_OUTPUT_REPORT]
+ .report_id_hash[RMI_WRITE_REPORT_ID]->size >> 3)
+ + 1 /* report id */;
+
+ alloc_size = data->output_report_size + data->input_report_size;
+
+ data->writeReport = devm_kzalloc(&hdev->dev, alloc_size, GFP_KERNEL);
+ if (!data->writeReport) {
+ ret = -ENOMEM;
+ return ret;
+ }
+
+ data->readReport = data->writeReport + data->output_report_size;
+
+ init_waitqueue_head(&data->wait);
+
+ mutex_init(&data->page_mutex);
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ hid_err(hdev, "hw start failed\n");
+ return ret;
+ }
+
+ if (!test_bit(RMI_STARTED, &data->flags)) {
+ hid_hw_stop(hdev);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void rmi_remove(struct hid_device *hdev)
+{
+ struct rmi_data *hdata = hid_get_drvdata(hdev);
+
+ clear_bit(RMI_STARTED, &hdata->flags);
+
+ hid_hw_stop(hdev);
+}
+
+static const struct hid_device_id rmi_id[] = {
+ { HID_I2C_DEVICE(USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, HID_ANY_ID) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, rmi_id);
+
+static struct hid_driver rmi_driver = {
+ .name = "hid-rmi",
+ .id_table = rmi_id,
+ .probe = rmi_probe,
+ .remove = rmi_remove,
+ .raw_event = rmi_raw_event,
+ .input_mapping = rmi_input_mapping,
+ .input_configured = rmi_input_configured,
+#ifdef CONFIG_PM
+ .resume = rmi_post_resume,
+ .reset_resume = rmi_post_reset,
+#endif
+};
+
+module_hid_driver(rmi_driver);
+
+MODULE_AUTHOR("Andrew Duggan <aduggan@synaptics.com>");
+MODULE_DESCRIPTION("RMI HID driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-thingm.c b/drivers/hid/hid-thingm.c
index a97c78845f7b..31de890d14cf 100644
--- a/drivers/hid/hid-thingm.c
+++ b/drivers/hid/hid-thingm.c
@@ -1,7 +1,7 @@
/*
* ThingM blink(1) USB RGB LED driver
*
- * Copyright 2013 Savoir-faire Linux Inc.
+ * Copyright 2013-2014 Savoir-faire Linux Inc.
* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
*
* This program is free software; you can redistribute it and/or
@@ -10,244 +10,285 @@
*/
#include <linux/hid.h>
+#include <linux/hidraw.h>
#include <linux/leds.h>
#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/workqueue.h>
#include "hid-ids.h"
-#define BLINK1_CMD_SIZE 9
+#define REPORT_ID 1
+#define REPORT_SIZE 9
-#define blink1_rgb_to_r(rgb) ((rgb & 0xFF0000) >> 16)
-#define blink1_rgb_to_g(rgb) ((rgb & 0x00FF00) >> 8)
-#define blink1_rgb_to_b(rgb) ((rgb & 0x0000FF) >> 0)
+/* Firmware major number of supported devices */
+#define THINGM_MAJOR_MK1 '1'
+#define THINGM_MAJOR_MK2 '2'
-/**
- * struct blink1_data - blink(1) device specific data
- * @hdev: HID device.
- * @led_cdev: LED class instance.
- * @rgb: 8-bit per channel RGB notation.
- * @fade: fade time in hundredths of a second.
- * @brightness: brightness coefficient.
- * @play: play/pause in-memory patterns.
- */
-struct blink1_data {
+struct thingm_fwinfo {
+ char major;
+ unsigned numrgb;
+ unsigned first;
+};
+
+const struct thingm_fwinfo thingm_fwinfo[] = {
+ {
+ .major = THINGM_MAJOR_MK1,
+ .numrgb = 1,
+ .first = 0,
+ }, {
+ .major = THINGM_MAJOR_MK2,
+ .numrgb = 2,
+ .first = 1,
+ }
+};
+
+/* A red, green or blue channel, part of an RGB chip */
+struct thingm_led {
+ struct thingm_rgb *rgb;
+ struct led_classdev ldev;
+ char name[32];
+};
+
+/* Basically a WS2812 5050 RGB LED chip */
+struct thingm_rgb {
+ struct thingm_device *tdev;
+ struct thingm_led red;
+ struct thingm_led green;
+ struct thingm_led blue;
+ struct work_struct work;
+ u8 num;
+};
+
+struct thingm_device {
struct hid_device *hdev;
- struct led_classdev led_cdev;
- u32 rgb;
- u16 fade;
- u8 brightness;
- bool play;
+ struct {
+ char major;
+ char minor;
+ } version;
+ const struct thingm_fwinfo *fwinfo;
+ struct mutex lock;
+ struct thingm_rgb *rgb;
};
-static int blink1_send_command(struct blink1_data *data,
- u8 buf[BLINK1_CMD_SIZE])
+static int thingm_send(struct thingm_device *tdev, u8 buf[REPORT_SIZE])
{
int ret;
- hid_dbg(data->hdev, "command: %d%c%.2x%.2x%.2x%.2x%.2x%.2x%.2x\n",
+ hid_dbg(tdev->hdev, "-> %d %c %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx\n",
buf[0], buf[1], buf[2], buf[3], buf[4],
buf[5], buf[6], buf[7], buf[8]);
- ret = hid_hw_raw_request(data->hdev, buf[0], buf, BLINK1_CMD_SIZE,
- HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+ ret = hid_hw_raw_request(tdev->hdev, buf[0], buf, REPORT_SIZE,
+ HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
return ret < 0 ? ret : 0;
}
-static int blink1_update_color(struct blink1_data *data)
+static int thingm_recv(struct thingm_device *tdev, u8 buf[REPORT_SIZE])
{
- u8 buf[BLINK1_CMD_SIZE] = { 1, 'n', 0, 0, 0, 0, 0, 0, 0 };
-
- if (data->brightness) {
- unsigned int coef = DIV_ROUND_CLOSEST(255, data->brightness);
+ int ret;
- buf[2] = DIV_ROUND_CLOSEST(blink1_rgb_to_r(data->rgb), coef);
- buf[3] = DIV_ROUND_CLOSEST(blink1_rgb_to_g(data->rgb), coef);
- buf[4] = DIV_ROUND_CLOSEST(blink1_rgb_to_b(data->rgb), coef);
- }
+ ret = hid_hw_raw_request(tdev->hdev, buf[0], buf, REPORT_SIZE,
+ HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+ if (ret < 0)
+ return ret;
- if (data->fade) {
- buf[1] = 'c';
- buf[5] = (data->fade & 0xFF00) >> 8;
- buf[6] = (data->fade & 0x00FF);
- }
+ hid_dbg(tdev->hdev, "<- %d %c %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx %02hhx\n",
+ buf[0], buf[1], buf[2], buf[3], buf[4],
+ buf[5], buf[6], buf[7], buf[8]);
- return blink1_send_command(data, buf);
+ return 0;
}
-static void blink1_led_set(struct led_classdev *led_cdev,
- enum led_brightness brightness)
+static int thingm_version(struct thingm_device *tdev)
{
- struct blink1_data *data = dev_get_drvdata(led_cdev->dev->parent);
+ u8 buf[REPORT_SIZE] = { REPORT_ID, 'v', 0, 0, 0, 0, 0, 0, 0 };
+ int err;
- data->brightness = brightness;
- if (blink1_update_color(data))
- hid_err(data->hdev, "failed to update color\n");
-}
+ err = thingm_send(tdev, buf);
+ if (err)
+ return err;
-static enum led_brightness blink1_led_get(struct led_classdev *led_cdev)
-{
- struct blink1_data *data = dev_get_drvdata(led_cdev->dev->parent);
+ err = thingm_recv(tdev, buf);
+ if (err)
+ return err;
- return data->brightness;
+ tdev->version.major = buf[3];
+ tdev->version.minor = buf[4];
+
+ return 0;
}
-static ssize_t blink1_show_rgb(struct device *dev,
- struct device_attribute *attr, char *buf)
+static int thingm_write_color(struct thingm_rgb *rgb)
{
- struct blink1_data *data = dev_get_drvdata(dev->parent);
+ u8 buf[REPORT_SIZE] = { REPORT_ID, 'c', 0, 0, 0, 0, 0, rgb->num, 0 };
- return sprintf(buf, "%.6X\n", data->rgb);
+ buf[2] = rgb->red.ldev.brightness;
+ buf[3] = rgb->green.ldev.brightness;
+ buf[4] = rgb->blue.ldev.brightness;
+
+ return thingm_send(rgb->tdev, buf);
}
-static ssize_t blink1_store_rgb(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
+static void thingm_work(struct work_struct *work)
{
- struct blink1_data *data = dev_get_drvdata(dev->parent);
- long unsigned int rgb;
- int ret;
+ struct thingm_rgb *rgb = container_of(work, struct thingm_rgb, work);
- ret = kstrtoul(buf, 16, &rgb);
- if (ret)
- return ret;
-
- /* RGB triplet notation is 24-bit hexadecimal */
- if (rgb > 0xFFFFFF)
- return -EINVAL;
+ mutex_lock(&rgb->tdev->lock);
- data->rgb = rgb;
- ret = blink1_update_color(data);
+ if (thingm_write_color(rgb))
+ hid_err(rgb->tdev->hdev, "failed to write color\n");
- return ret ? ret : count;
+ mutex_unlock(&rgb->tdev->lock);
}
-static DEVICE_ATTR(rgb, S_IRUGO | S_IWUSR, blink1_show_rgb, blink1_store_rgb);
-
-static ssize_t blink1_show_fade(struct device *dev,
- struct device_attribute *attr, char *buf)
+static void thingm_led_set(struct led_classdev *ldev,
+ enum led_brightness brightness)
{
- struct blink1_data *data = dev_get_drvdata(dev->parent);
+ struct thingm_led *led = container_of(ldev, struct thingm_led, ldev);
- return sprintf(buf, "%d\n", data->fade * 10);
+ /* the ledclass has already stored the brightness value */
+ schedule_work(&led->rgb->work);
}
-static ssize_t blink1_store_fade(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
+static int thingm_init_rgb(struct thingm_rgb *rgb)
{
- struct blink1_data *data = dev_get_drvdata(dev->parent);
- long unsigned int fade;
- int ret;
+ const int minor = ((struct hidraw *) rgb->tdev->hdev->hidraw)->minor;
+ int err;
+
+ /* Register the red diode */
+ snprintf(rgb->red.name, sizeof(rgb->red.name),
+ "thingm%d:red:led%d", minor, rgb->num);
+ rgb->red.ldev.name = rgb->red.name;
+ rgb->red.ldev.max_brightness = 255;
+ rgb->red.ldev.brightness_set = thingm_led_set;
+ rgb->red.rgb = rgb;
+
+ err = led_classdev_register(&rgb->tdev->hdev->dev, &rgb->red.ldev);
+ if (err)
+ return err;
+
+ /* Register the green diode */
+ snprintf(rgb->green.name, sizeof(rgb->green.name),
+ "thingm%d:green:led%d", minor, rgb->num);
+ rgb->green.ldev.name = rgb->green.name;
+ rgb->green.ldev.max_brightness = 255;
+ rgb->green.ldev.brightness_set = thingm_led_set;
+ rgb->green.rgb = rgb;
+
+ err = led_classdev_register(&rgb->tdev->hdev->dev, &rgb->green.ldev);
+ if (err)
+ goto unregister_red;
+
+ /* Register the blue diode */
+ snprintf(rgb->blue.name, sizeof(rgb->blue.name),
+ "thingm%d:blue:led%d", minor, rgb->num);
+ rgb->blue.ldev.name = rgb->blue.name;
+ rgb->blue.ldev.max_brightness = 255;
+ rgb->blue.ldev.brightness_set = thingm_led_set;
+ rgb->blue.rgb = rgb;
+
+ err = led_classdev_register(&rgb->tdev->hdev->dev, &rgb->blue.ldev);
+ if (err)
+ goto unregister_green;
+
+ INIT_WORK(&rgb->work, thingm_work);
- ret = kstrtoul(buf, 10, &fade);
- if (ret)
- return ret;
+ return 0;
- /* blink(1) accepts 16-bit fade time, number of 10ms ticks */
- fade = DIV_ROUND_CLOSEST(fade, 10);
- if (fade > 65535)
- return -EINVAL;
+unregister_green:
+ led_classdev_unregister(&rgb->green.ldev);
- data->fade = fade;
+unregister_red:
+ led_classdev_unregister(&rgb->red.ldev);
- return count;
+ return err;
}
-static DEVICE_ATTR(fade, S_IRUGO | S_IWUSR,
- blink1_show_fade, blink1_store_fade);
-
-static ssize_t blink1_show_play(struct device *dev,
- struct device_attribute *attr, char *buf)
+static void thingm_remove_rgb(struct thingm_rgb *rgb)
{
- struct blink1_data *data = dev_get_drvdata(dev->parent);
-
- return sprintf(buf, "%d\n", data->play);
+ flush_work(&rgb->work);
+ led_classdev_unregister(&rgb->red.ldev);
+ led_classdev_unregister(&rgb->green.ldev);
+ led_classdev_unregister(&rgb->blue.ldev);
}
-static ssize_t blink1_store_play(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
+static int thingm_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
- struct blink1_data *data = dev_get_drvdata(dev->parent);
- u8 cmd[BLINK1_CMD_SIZE] = { 1, 'p', 0, 0, 0, 0, 0, 0, 0 };
- long unsigned int play;
- int ret;
+ struct thingm_device *tdev;
+ int i, err;
- ret = kstrtoul(buf, 10, &play);
- if (ret)
- return ret;
+ tdev = devm_kzalloc(&hdev->dev, sizeof(struct thingm_device),
+ GFP_KERNEL);
+ if (!tdev)
+ return -ENOMEM;
- data->play = !!play;
- cmd[2] = data->play;
- ret = blink1_send_command(data, cmd);
+ tdev->hdev = hdev;
+ hid_set_drvdata(hdev, tdev);
- return ret ? ret : count;
-}
-
-static DEVICE_ATTR(play, S_IRUGO | S_IWUSR,
- blink1_show_play, blink1_store_play);
+ err = hid_parse(hdev);
+ if (err)
+ goto error;
-static const struct attribute_group blink1_sysfs_group = {
- .attrs = (struct attribute *[]) {
- &dev_attr_rgb.attr,
- &dev_attr_fade.attr,
- &dev_attr_play.attr,
- NULL
- },
-};
+ err = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+ if (err)
+ goto error;
-static int thingm_probe(struct hid_device *hdev, const struct hid_device_id *id)
-{
- struct blink1_data *data;
- struct led_classdev *led;
- char led_name[13];
- int ret;
+ mutex_init(&tdev->lock);
- data = devm_kzalloc(&hdev->dev, sizeof(struct blink1_data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
+ err = thingm_version(tdev);
+ if (err)
+ goto stop;
- hid_set_drvdata(hdev, data);
- data->hdev = hdev;
- data->rgb = 0xFFFFFF; /* set a default white color */
+ hid_dbg(hdev, "firmware version: %c.%c\n",
+ tdev->version.major, tdev->version.minor);
- ret = hid_parse(hdev);
- if (ret)
- goto error;
+ for (i = 0; i < ARRAY_SIZE(thingm_fwinfo) && !tdev->fwinfo; ++i)
+ if (thingm_fwinfo[i].major == tdev->version.major)
+ tdev->fwinfo = &thingm_fwinfo[i];
- ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
- if (ret)
- goto error;
+ if (!tdev->fwinfo) {
+ hid_err(hdev, "unsupported firmware %c\n", tdev->version.major);
+ goto stop;
+ }
- /* blink(1) serial numbers range is 0x1A001000 to 0x1A002FFF */
- led = &data->led_cdev;
- snprintf(led_name, sizeof(led_name), "blink1::%s", hdev->uniq + 4);
- led->name = led_name;
- led->brightness_set = blink1_led_set;
- led->brightness_get = blink1_led_get;
- ret = led_classdev_register(&hdev->dev, led);
- if (ret)
+ tdev->rgb = devm_kzalloc(&hdev->dev,
+ sizeof(struct thingm_rgb) * tdev->fwinfo->numrgb,
+ GFP_KERNEL);
+ if (!tdev->rgb) {
+ err = -ENOMEM;
goto stop;
+ }
- ret = sysfs_create_group(&led->dev->kobj, &blink1_sysfs_group);
- if (ret)
- goto remove_led;
+ for (i = 0; i < tdev->fwinfo->numrgb; ++i) {
+ struct thingm_rgb *rgb = tdev->rgb + i;
+
+ rgb->tdev = tdev;
+ rgb->num = tdev->fwinfo->first + i;
+ err = thingm_init_rgb(rgb);
+ if (err) {
+ while (--i >= 0)
+ thingm_remove_rgb(tdev->rgb + i);
+ goto stop;
+ }
+ }
return 0;
-
-remove_led:
- led_classdev_unregister(led);
stop:
hid_hw_stop(hdev);
error:
- return ret;
+ return err;
}
static void thingm_remove(struct hid_device *hdev)
{
- struct blink1_data *data = hid_get_drvdata(hdev);
- struct led_classdev *led = &data->led_cdev;
+ struct thingm_device *tdev = hid_get_drvdata(hdev);
+ int i;
+
+ for (i = 0; i < tdev->fwinfo->numrgb; ++i)
+ thingm_remove_rgb(tdev->rgb + i);
- sysfs_remove_group(&led->dev->kobj, &blink1_sysfs_group);
- led_classdev_unregister(led);
hid_hw_stop(hdev);
}
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 6de9dfbf61c1..609811e20c22 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -479,6 +479,8 @@ config LEDS_OT200
This option enables support for the LEDs on the Bachmann OT200.
Say Y to enable LEDs on the Bachmann OT200.
+comment "LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)"
+
config LEDS_BLINKM
tristate "LED support for the BlinkM I2C RGB LED"
depends on LEDS_CLASS
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 720e3a10608c..54f855b2c902 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -570,6 +570,8 @@ struct hid_descriptor {
.bus = BUS_USB, .vendor = (ven), .product = (prod)
#define HID_BLUETOOTH_DEVICE(ven, prod) \
.bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod)
+#define HID_I2C_DEVICE(ven, prod) \
+ .bus = BUS_I2C, .vendor = (ven), .product = (prod)
#define HID_REPORT_ID(rep) \
.report_type = (rep)
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-13 04:57:18 +0000