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@@ -0,0 +1,745 @@
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+/*
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+ * Asus OLED USB driver
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+ *
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+ * Copyright (C) 2007,2008 Jakub Schmidtke (sjakub@gmail.com)
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc.,
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+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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+ *
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+ *
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+ *
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+ * This module is based on usbled and asus-laptop modules.
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+ *
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+ *
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+ * Asus OLED support is based on asusoled program taken from
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+ * https://launchpad.net/asusoled/.
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+ *
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+ *
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/errno.h>
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+#include <linux/init.h>
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+#include <linux/slab.h>
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+#include <linux/module.h>
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+#include <linux/usb.h>
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+#include <linux/platform_device.h>
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+#include <linux/ctype.h>
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+
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+#define ASUS_OLED_VERSION "0.04-dev"
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+#define ASUS_OLED_NAME "asus-oled"
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+#define ASUS_OLED_UNDERSCORE_NAME "asus_oled"
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+
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+#define ASUS_OLED_ERROR "Asus OLED Display Error: "
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+
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+#define ASUS_OLED_STATIC 's'
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+#define ASUS_OLED_ROLL 'r'
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+#define ASUS_OLED_FLASH 'f'
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+
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+#define ASUS_OLED_MAX_WIDTH 1792
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+#define ASUS_OLED_DISP_HEIGHT 32
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+#define ASUS_OLED_PACKET_BUF_SIZE 256
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+
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+MODULE_AUTHOR("Jakub Schmidtke, sjakub@gmail.com");
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+MODULE_DESCRIPTION("Asus OLED Driver v" ASUS_OLED_VERSION);
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+MODULE_LICENSE("GPL");
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+
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+static struct class *oled_class = 0;
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+static int oled_num = 0;
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+
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+static uint start_off = 0;
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+
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+module_param(start_off, uint, 0644);
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+
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+MODULE_PARM_DESC(start_off, "Set to 1 to switch off OLED display after it is attached");
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+
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+typedef enum {
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+ PACK_MODE_G1,
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+ PACK_MODE_G50,
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+ PACK_MODE_LAST
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+} oled_pack_mode_t;
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+
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+struct oled_dev_desc_str {
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+ uint16_t idVendor;
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+ uint16_t idProduct;
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+ uint16_t devWidth; // width of display
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+ oled_pack_mode_t packMode; // formula to be used while packing the picture
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+ const char *devDesc;
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+};
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+
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+/* table of devices that work with this driver */
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+static struct usb_device_id id_table [] = {
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+ { USB_DEVICE(0x0b05, 0x1726) }, // Asus G1/G2 (and variants)
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+ { USB_DEVICE(0x0b05, 0x175b) }, // Asus G50V (and possibly others - G70? G71?)
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+ { },
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+};
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+
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+/* parameters of specific devices */
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+static struct oled_dev_desc_str oled_dev_desc_table [] = {
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+ { 0x0b05, 0x1726, 128, PACK_MODE_G1, "G1/G2" },
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+ { 0x0b05, 0x175b, 256, PACK_MODE_G50, "G50" },
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+ { },
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+};
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+
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+MODULE_DEVICE_TABLE (usb, id_table);
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+
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+#define SETUP_PACKET_HEADER(packet, val1, val2, val3, val4, val5, val6, val7) \
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+ do { \
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+ memset(packet, 0, sizeof(struct asus_oled_header)); \
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+ packet->header.magic1 = 0x55; \
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+ packet->header.magic2 = 0xaa; \
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+ packet->header.flags = val1; \
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+ packet->header.value3 = val2; \
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+ packet->header.buffer1 = val3; \
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+ packet->header.buffer2 = val4; \
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+ packet->header.value6 = val5; \
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+ packet->header.value7 = val6; \
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+ packet->header.value8 = val7; \
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+ } while(0);
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+
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+struct asus_oled_header {
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+ uint8_t magic1;
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+ uint8_t magic2;
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+ uint8_t flags;
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+ uint8_t value3;
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+ uint8_t buffer1;
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+ uint8_t buffer2;
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+ uint8_t value6;
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+ uint8_t value7;
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+ uint8_t value8;
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+ uint8_t padding2[7];
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+} __attribute((packed));
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+
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+struct asus_oled_packet {
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+ struct asus_oled_header header;
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+ uint8_t bitmap[ASUS_OLED_PACKET_BUF_SIZE];
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+} __attribute((packed));
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+
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+struct asus_oled_dev {
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+ struct usb_device * udev;
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+ uint8_t pic_mode;
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+ uint16_t dev_width;
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+ oled_pack_mode_t pack_mode;
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+ size_t height;
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+ size_t width;
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+ size_t x_shift;
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+ size_t y_shift;
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+ size_t buf_offs;
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+ uint8_t last_val;
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+ size_t buf_size;
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+ char *buf;
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+ uint8_t enabled;
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+ struct device *dev;
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+};
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+
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+static void enable_oled(struct asus_oled_dev *odev, uint8_t enabl)
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+{
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+ int a;
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+ int retval;
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+ int act_len;
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+ struct asus_oled_packet * packet;
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+
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+ packet = kzalloc(sizeof(struct asus_oled_packet), GFP_KERNEL);
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+
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+ if (!packet) {
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+ dev_err(&odev->udev->dev, "out of memory\n");
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+ return;
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+ }
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+
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+ SETUP_PACKET_HEADER(packet, 0x20, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00);
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+
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+ if (enabl) packet->bitmap[0] = 0xaf;
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+ else packet->bitmap[0] = 0xae;
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+
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+ for (a=0; a<1; a++) {
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+ retval = usb_bulk_msg(odev->udev,
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+ usb_sndbulkpipe(odev->udev, 2),
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+ packet,
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+ sizeof(struct asus_oled_header) + 1,
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+ &act_len,
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+ -1);
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+
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+ if (retval)
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+ dev_dbg(&odev->udev->dev, "retval = %d\n", retval);
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+ }
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+
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+ odev->enabled = enabl;
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+
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+ kfree(packet);
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+}
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+
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+static ssize_t set_enabled(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
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+{
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+ struct usb_interface *intf = to_usb_interface(dev);
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+ struct asus_oled_dev *odev = usb_get_intfdata(intf);
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+ int temp = simple_strtoul(buf, NULL, 10);
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+
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+ enable_oled(odev, temp);
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+
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+ return count;
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+}
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+
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+static ssize_t class_set_enabled(struct device *device, struct device_attribute *attr, const char *buf, size_t count)
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+{
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+ struct asus_oled_dev *odev = (struct asus_oled_dev *) dev_get_drvdata(device);
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+
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+ int temp = simple_strtoul(buf, NULL, 10);
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+
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+ enable_oled(odev, temp);
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+
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+ return count;
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+}
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+
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+static ssize_t get_enabled(struct device *dev, struct device_attribute *attr, char *buf)
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+{
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+ struct usb_interface *intf = to_usb_interface(dev);
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+ struct asus_oled_dev *odev = usb_get_intfdata(intf);
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+
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+ return sprintf(buf, "%d\n", odev->enabled);
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+}
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+
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+static ssize_t class_get_enabled(struct device *device, struct device_attribute *attr, char *buf)
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+{
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+ struct asus_oled_dev *odev = (struct asus_oled_dev *) dev_get_drvdata(device);
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+
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+ return sprintf(buf, "%d\n", odev->enabled);
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+}
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+
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+static void send_packets(struct usb_device *udev, struct asus_oled_packet *packet,
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+ char *buf, uint8_t p_type, size_t p_num)
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+{
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+ size_t i;
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+ int act_len;
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+
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+ for (i = 0; i < p_num; i++) {
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+ int retval;
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+
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+ switch (p_type) {
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+ case ASUS_OLED_ROLL:
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+ SETUP_PACKET_HEADER(packet, 0x40, 0x80, p_num, i + 1, 0x00, 0x01, 0xff);
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+ break;
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+ case ASUS_OLED_STATIC:
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+ SETUP_PACKET_HEADER(packet, 0x10 + i, 0x80, 0x01, 0x01, 0x00, 0x01, 0x00);
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+ break;
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+ case ASUS_OLED_FLASH:
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+ SETUP_PACKET_HEADER(packet, 0x10 + i, 0x80, 0x01, 0x01, 0x00, 0x00, 0xff);
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+ break;
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+ }
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+
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+ memcpy(packet->bitmap, buf + (ASUS_OLED_PACKET_BUF_SIZE*i), ASUS_OLED_PACKET_BUF_SIZE);
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+
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+ retval = usb_bulk_msg(udev,
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+ usb_sndctrlpipe(udev, 2),
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+ packet,
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+ sizeof(struct asus_oled_packet),
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+ &act_len,
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+ -1);
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+
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+ if (retval)
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+ dev_dbg(&udev->dev, "retval = %d\n", retval);
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+ }
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+}
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+
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+static void send_packet(struct usb_device *udev, struct asus_oled_packet *packet, size_t offset, size_t len, char *buf, uint8_t b1, uint8_t b2, uint8_t b3, uint8_t b4, uint8_t b5, uint8_t b6){
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+ int retval;
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+ int act_len;
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+
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+ SETUP_PACKET_HEADER(packet, b1, b2, b3, b4, b5, b6, 0x00);
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+ memcpy(packet->bitmap, buf + offset, len);
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+
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+ retval = usb_bulk_msg(udev,
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+ usb_sndctrlpipe(udev, 2),
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+ packet,
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+ sizeof(struct asus_oled_packet),
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+ &act_len,
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+ -1);
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+
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+ if (retval)
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+ dev_dbg(&udev->dev, "retval = %d\n", retval);
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+}
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+
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+
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+static void send_packets_g50(struct usb_device *udev, struct asus_oled_packet *packet, char *buf)
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+{
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+ send_packet(udev, packet, 0, 0x100, buf, 0x10, 0x00, 0x02, 0x01, 0x00, 0x01);
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+ send_packet(udev, packet, 0x100, 0x080, buf, 0x10, 0x00, 0x02, 0x02, 0x80, 0x00);
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+
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+ send_packet(udev, packet, 0x180, 0x100, buf, 0x11, 0x00, 0x03, 0x01, 0x00, 0x01);
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+ send_packet(udev, packet, 0x280, 0x100, buf, 0x11, 0x00, 0x03, 0x02, 0x00, 0x01);
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+ send_packet(udev, packet, 0x380, 0x080, buf, 0x11, 0x00, 0x03, 0x03, 0x80, 0x00);
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+}
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+
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+
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+static void send_data(struct asus_oled_dev *odev)
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+{
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+ size_t packet_num = odev->buf_size / ASUS_OLED_PACKET_BUF_SIZE;
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+ struct asus_oled_packet * packet;
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+
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+ packet = kzalloc(sizeof(struct asus_oled_packet), GFP_KERNEL);
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+
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+ if (!packet) {
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+ dev_err(&odev->udev->dev, "out of memory\n");
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+ return;
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+ }
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+
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+ if (odev->pack_mode==PACK_MODE_G1){
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+ // When sending roll-mode data the display updated only first packet.
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+ // I have no idea why, but when static picture is send just before
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+ // rolling picture - everything works fine.
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+ if (odev->pic_mode == ASUS_OLED_ROLL)
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+ send_packets(odev->udev, packet, odev->buf, ASUS_OLED_STATIC, 2);
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+
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+ // Only ROLL mode can use more than 2 packets.
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+ if (odev->pic_mode != ASUS_OLED_ROLL && packet_num > 2)
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+ packet_num = 2;
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+
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+ send_packets(odev->udev, packet, odev->buf, odev->pic_mode, packet_num);
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+ }
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+ else
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+ if (odev->pack_mode==PACK_MODE_G50){
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+ send_packets_g50(odev->udev, packet, odev->buf);
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+ }
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+
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+ kfree(packet);
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+}
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+
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+static int append_values(struct asus_oled_dev *odev, uint8_t val, size_t count)
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+{
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+ while (count-- > 0) {
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+ if (val) {
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+ size_t x = odev->buf_offs % odev->width;
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+ size_t y = odev->buf_offs / odev->width;
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+ size_t i;
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+
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+ x += odev->x_shift;
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+ y += odev->y_shift;
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+
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+ switch(odev->pack_mode)
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+ {
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+ case PACK_MODE_G1:
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+ // i = (x/128)*640 + 127 - x + (y/8)*128;
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+ // This one for 128 is the same, but might be better for different widths?
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+ i = (x/odev->dev_width)*640 + odev->dev_width - 1 - x + (y/8)*odev->dev_width;
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+ break;
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+
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+ case PACK_MODE_G50:
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+ i = (odev->dev_width - 1 - x)/8 + y*odev->dev_width/8;
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+ break;
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+
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+ default:
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+ i = 0;
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+ printk(ASUS_OLED_ERROR "Unknown OLED Pack Mode: %d!\n", odev->pack_mode);
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+ break;
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+ }
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+
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+ if (i >= odev->buf_size) {
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+ printk(ASUS_OLED_ERROR "Buffer overflow! Report a bug in the driver: offs: %d >= %d i: %d (x: %d y: %d)\n",
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+ (int) odev->buf_offs, (int) odev->buf_size, (int) i, (int) x, (int) y);
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+ return -EIO;
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+ }
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+
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+ switch (odev->pack_mode)
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+ {
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+ case PACK_MODE_G1:
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+ odev->buf[i] &= ~(1<<(y%8));
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+ break;
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+
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+ case PACK_MODE_G50:
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+ odev->buf[i] &= ~(1<<(x%8));
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+ break;
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+
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+ default:
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+ // cannot get here; stops gcc complaining
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+ ;
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+ }
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+ }
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+
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+ odev->last_val = val;
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+ odev->buf_offs++;
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+ }
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+
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+ return 0;
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+}
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+
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+static ssize_t odev_set_picture(struct asus_oled_dev *odev, const char *buf, size_t count)
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+{
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+ size_t offs = 0, max_offs;
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+
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+ if (count < 1) return 0;
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+
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+ if (tolower(buf[0]) == 'b'){
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+ // binary mode, set the entire memory
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+
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+ size_t i;
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+
|
|
|
+ odev->buf_size = (odev->dev_width * ASUS_OLED_DISP_HEIGHT) / 8;
|
|
|
+
|
|
|
+ if (odev->buf) kfree(odev->buf);
|
|
|
+ odev->buf = kmalloc(odev->buf_size, GFP_KERNEL);
|
|
|
+
|
|
|
+ memset(odev->buf, 0xff, odev->buf_size);
|
|
|
+
|
|
|
+ for (i=1; i < count && i<=32*32; i++){
|
|
|
+ odev->buf[i-1] = buf[i];
|
|
|
+ odev->buf_offs = i-1;
|
|
|
+ }
|
|
|
+
|
|
|
+ odev->width=odev->dev_width / 8;
|
|
|
+ odev->height=ASUS_OLED_DISP_HEIGHT;
|
|
|
+ odev->x_shift=0;
|
|
|
+ odev->y_shift=0;
|
|
|
+ odev->last_val=0;
|
|
|
+
|
|
|
+ send_data(odev);
|
|
|
+
|
|
|
+ return count;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (buf[0] == '<') {
|
|
|
+ size_t i;
|
|
|
+ size_t w = 0, h = 0;
|
|
|
+ size_t w_mem, h_mem;
|
|
|
+
|
|
|
+ if (count < 10 || buf[2] != ':') {
|
|
|
+ goto error_header;
|
|
|
+ }
|
|
|
+
|
|
|
+ switch(tolower(buf[1])) {
|
|
|
+ case ASUS_OLED_STATIC:
|
|
|
+ case ASUS_OLED_ROLL:
|
|
|
+ case ASUS_OLED_FLASH:
|
|
|
+ odev->pic_mode = buf[1];
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ printk(ASUS_OLED_ERROR "Wrong picture mode: '%c'.\n", buf[1]);
|
|
|
+ return -EIO;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ for (i = 3; i < count; ++i) {
|
|
|
+ if (buf[i] >= '0' && buf[i] <= '9') {
|
|
|
+ w = 10*w + (buf[i] - '0');
|
|
|
+
|
|
|
+ if (w > ASUS_OLED_MAX_WIDTH) goto error_width;
|
|
|
+ }
|
|
|
+ else if (tolower(buf[i]) == 'x') break;
|
|
|
+ else goto error_width;
|
|
|
+ }
|
|
|
+
|
|
|
+ for (++i; i < count; ++i) {
|
|
|
+ if (buf[i] >= '0' && buf[i] <= '9') {
|
|
|
+ h = 10*h + (buf[i] - '0');
|
|
|
+
|
|
|
+ if (h > ASUS_OLED_DISP_HEIGHT) goto error_height;
|
|
|
+ }
|
|
|
+ else if (tolower(buf[i]) == '>') break;
|
|
|
+ else goto error_height;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (w < 1 || w > ASUS_OLED_MAX_WIDTH) goto error_width;
|
|
|
+
|
|
|
+ if (h < 1 || h > ASUS_OLED_DISP_HEIGHT) goto error_height;
|
|
|
+
|
|
|
+ if (i >= count || buf[i] != '>') goto error_header;
|
|
|
+
|
|
|
+ offs = i+1;
|
|
|
+
|
|
|
+ if (w % (odev->dev_width) != 0)
|
|
|
+ w_mem = (w/(odev->dev_width) + 1)*(odev->dev_width);
|
|
|
+ else
|
|
|
+ w_mem = w;
|
|
|
+
|
|
|
+ if (h < ASUS_OLED_DISP_HEIGHT)
|
|
|
+ h_mem = ASUS_OLED_DISP_HEIGHT;
|
|
|
+ else
|
|
|
+ h_mem = h;
|
|
|
+
|
|
|
+ odev->buf_size = w_mem * h_mem / 8;
|
|
|
+
|
|
|
+ if (odev->buf) kfree(odev->buf);
|
|
|
+ odev->buf = kmalloc(odev->buf_size, GFP_KERNEL);
|
|
|
+
|
|
|
+ if (odev->buf == NULL) {
|
|
|
+ odev->buf_size = 0;
|
|
|
+ printk(ASUS_OLED_ERROR "Out of memory!\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ memset(odev->buf, 0xff, odev->buf_size);
|
|
|
+
|
|
|
+ odev->buf_offs = 0;
|
|
|
+ odev->width = w;
|
|
|
+ odev->height = h;
|
|
|
+ odev->x_shift = 0;
|
|
|
+ odev->y_shift = 0;
|
|
|
+ odev->last_val = 0;
|
|
|
+
|
|
|
+ if (odev->pic_mode == ASUS_OLED_FLASH) {
|
|
|
+ if (h < ASUS_OLED_DISP_HEIGHT/2)
|
|
|
+ odev->y_shift = (ASUS_OLED_DISP_HEIGHT/2 - h)/2;
|
|
|
+ }
|
|
|
+ else {
|
|
|
+ if (h < ASUS_OLED_DISP_HEIGHT)
|
|
|
+ odev->y_shift = (ASUS_OLED_DISP_HEIGHT - h)/2;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (w < (odev->dev_width))
|
|
|
+ odev->x_shift = ((odev->dev_width) - w)/2;
|
|
|
+ }
|
|
|
+
|
|
|
+ max_offs = odev->width * odev->height;
|
|
|
+
|
|
|
+ while (offs < count && odev->buf_offs < max_offs) {
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ if (buf[offs] == '1' || buf[offs] == '#') {
|
|
|
+ if ( (ret = append_values(odev, 1, 1)) < 0) return ret;
|
|
|
+ }
|
|
|
+ else if (buf[offs] == '0' || buf[offs] == ' ') {
|
|
|
+ if ( (ret = append_values(odev, 0, 1)) < 0) return ret;
|
|
|
+ }
|
|
|
+ else if (buf[offs] == '\n') {
|
|
|
+ // New line detected. Lets assume, that all characters till the end of the
|
|
|
+ // line were equal to the last character in this line.
|
|
|
+ if (odev->buf_offs % odev->width != 0)
|
|
|
+ if ( (ret = append_values(odev, odev->last_val,
|
|
|
+ odev->width - (odev->buf_offs % odev->width))) < 0) return ret;
|
|
|
+ }
|
|
|
+
|
|
|
+ offs++;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (odev->buf_offs >= max_offs) send_data(odev);
|
|
|
+
|
|
|
+ return count;
|
|
|
+
|
|
|
+error_width:
|
|
|
+ printk(ASUS_OLED_ERROR "Wrong picture width specified.\n");
|
|
|
+ return -EIO;
|
|
|
+
|
|
|
+error_height:
|
|
|
+ printk(ASUS_OLED_ERROR "Wrong picture height specified.\n");
|
|
|
+ return -EIO;
|
|
|
+
|
|
|
+error_header:
|
|
|
+ printk(ASUS_OLED_ERROR "Wrong picture header.\n");
|
|
|
+ return -EIO;
|
|
|
+}
|
|
|
+
|
|
|
+static ssize_t set_picture(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
|
|
|
+{
|
|
|
+ struct usb_interface *intf = to_usb_interface(dev);
|
|
|
+
|
|
|
+ return odev_set_picture(usb_get_intfdata(intf), buf, count);
|
|
|
+}
|
|
|
+
|
|
|
+static ssize_t class_set_picture(struct device *device, struct device_attribute *attr, const char *buf, size_t count)
|
|
|
+{
|
|
|
+ return odev_set_picture((struct asus_oled_dev *) dev_get_drvdata(device), buf, count);
|
|
|
+}
|
|
|
+
|
|
|
+#define ASUS_OLED_DEVICE_ATTR(_file) dev_attr_asus_oled_##_file
|
|
|
+
|
|
|
+static DEVICE_ATTR(asus_oled_enabled, S_IWUGO | S_IRUGO, get_enabled, set_enabled);
|
|
|
+static DEVICE_ATTR(asus_oled_picture, S_IWUGO , NULL, set_picture);
|
|
|
+
|
|
|
+static DEVICE_ATTR(enabled, S_IWUGO | S_IRUGO, class_get_enabled, class_set_enabled);
|
|
|
+static DEVICE_ATTR(picture, S_IWUGO, NULL, class_set_picture);
|
|
|
+
|
|
|
+static int asus_oled_probe(struct usb_interface *interface, const struct usb_device_id *id)
|
|
|
+{
|
|
|
+ struct usb_device *udev = interface_to_usbdev(interface);
|
|
|
+ struct asus_oled_dev *odev = NULL;
|
|
|
+ int retval = -ENOMEM;
|
|
|
+ uint16_t dev_width = 0;
|
|
|
+ oled_pack_mode_t pack_mode = PACK_MODE_LAST;
|
|
|
+ const struct oled_dev_desc_str * dev_desc = oled_dev_desc_table;
|
|
|
+ const char *desc = 0;
|
|
|
+
|
|
|
+ if (id == 0) {
|
|
|
+ // Even possible? Just to make sure...
|
|
|
+ dev_err(&interface->dev, "No usb_device_id provided!\n");
|
|
|
+ return -ENODEV;
|
|
|
+ }
|
|
|
+
|
|
|
+ for (; dev_desc->idVendor; dev_desc++)
|
|
|
+ {
|
|
|
+ if (dev_desc->idVendor == id->idVendor
|
|
|
+ && dev_desc->idProduct == id->idProduct)
|
|
|
+ {
|
|
|
+ dev_width = dev_desc->devWidth;
|
|
|
+ desc = dev_desc->devDesc;
|
|
|
+ pack_mode = dev_desc->packMode;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( !desc || dev_width < 1 || pack_mode == PACK_MODE_LAST) {
|
|
|
+ dev_err(&interface->dev, "Missing or incomplete device description!\n");
|
|
|
+ return -ENODEV;
|
|
|
+ }
|
|
|
+
|
|
|
+ odev = kzalloc(sizeof(struct asus_oled_dev), GFP_KERNEL);
|
|
|
+
|
|
|
+ if (odev == NULL) {
|
|
|
+ dev_err(&interface->dev, "Out of memory\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+
|
|
|
+ odev->udev = usb_get_dev(udev);
|
|
|
+ odev->pic_mode = ASUS_OLED_STATIC;
|
|
|
+ odev->dev_width = dev_width;
|
|
|
+ odev->pack_mode = pack_mode;
|
|
|
+ odev->height = 0;
|
|
|
+ odev->width = 0;
|
|
|
+ odev->x_shift = 0;
|
|
|
+ odev->y_shift = 0;
|
|
|
+ odev->buf_offs = 0;
|
|
|
+ odev->buf_size = 0;
|
|
|
+ odev->last_val = 0;
|
|
|
+ odev->buf = NULL;
|
|
|
+ odev->enabled = 1;
|
|
|
+ odev->dev = 0;
|
|
|
+
|
|
|
+ usb_set_intfdata (interface, odev);
|
|
|
+
|
|
|
+ if ((retval = device_create_file(&interface->dev, &ASUS_OLED_DEVICE_ATTR(enabled)))) {
|
|
|
+ goto err_files;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((retval = device_create_file(&interface->dev, &ASUS_OLED_DEVICE_ATTR(picture)))) {
|
|
|
+ goto err_files;
|
|
|
+ }
|
|
|
+
|
|
|
+ odev->dev = device_create(oled_class, &interface->dev, MKDEV(0,0),
|
|
|
+ NULL,"oled_%d", ++oled_num);
|
|
|
+
|
|
|
+ if (IS_ERR(odev->dev)) {
|
|
|
+ retval = PTR_ERR(odev->dev);
|
|
|
+ goto err_files;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev_set_drvdata(odev->dev, odev);
|
|
|
+
|
|
|
+ if ( (retval = device_create_file(odev->dev, &dev_attr_enabled))) {
|
|
|
+ goto err_class_enabled;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ( (retval = device_create_file(odev->dev, &dev_attr_picture))) {
|
|
|
+ goto err_class_picture;
|
|
|
+ }
|
|
|
+
|
|
|
+ dev_info(&interface->dev, "Attached Asus OLED device: %s [width %u, pack_mode %d]\n", desc, odev->dev_width, odev->pack_mode);
|
|
|
+
|
|
|
+ if (start_off)
|
|
|
+ enable_oled(odev, 0);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+err_class_picture:
|
|
|
+ device_remove_file(odev->dev, &dev_attr_picture);
|
|
|
+
|
|
|
+err_class_enabled:
|
|
|
+ device_remove_file(odev->dev, &dev_attr_enabled);
|
|
|
+ device_unregister(odev->dev);
|
|
|
+
|
|
|
+err_files:
|
|
|
+ device_remove_file(&interface->dev, &ASUS_OLED_DEVICE_ATTR(enabled));
|
|
|
+ device_remove_file(&interface->dev, &ASUS_OLED_DEVICE_ATTR(picture));
|
|
|
+
|
|
|
+ usb_set_intfdata (interface, NULL);
|
|
|
+ usb_put_dev(odev->udev);
|
|
|
+ kfree(odev);
|
|
|
+
|
|
|
+ return retval;
|
|
|
+}
|
|
|
+
|
|
|
+static void asus_oled_disconnect(struct usb_interface *interface)
|
|
|
+{
|
|
|
+ struct asus_oled_dev *odev;
|
|
|
+
|
|
|
+ odev = usb_get_intfdata (interface);
|
|
|
+ usb_set_intfdata (interface, NULL);
|
|
|
+
|
|
|
+ device_remove_file(odev->dev, &dev_attr_picture);
|
|
|
+ device_remove_file(odev->dev, &dev_attr_enabled);
|
|
|
+ device_unregister(odev->dev);
|
|
|
+
|
|
|
+ device_remove_file(&interface->dev, & ASUS_OLED_DEVICE_ATTR(picture));
|
|
|
+ device_remove_file(&interface->dev, & ASUS_OLED_DEVICE_ATTR(enabled));
|
|
|
+
|
|
|
+ usb_put_dev(odev->udev);
|
|
|
+
|
|
|
+ if (odev->buf) kfree(odev->buf);
|
|
|
+
|
|
|
+ kfree(odev);
|
|
|
+
|
|
|
+ dev_info(&interface->dev, "Disconnected Asus OLED device\n");
|
|
|
+}
|
|
|
+
|
|
|
+static struct usb_driver oled_driver = {
|
|
|
+ .name = ASUS_OLED_NAME,
|
|
|
+ .probe = asus_oled_probe,
|
|
|
+ .disconnect = asus_oled_disconnect,
|
|
|
+ .id_table = id_table,
|
|
|
+};
|
|
|
+
|
|
|
+static ssize_t version_show(struct class *dev, char *buf)
|
|
|
+{
|
|
|
+ return sprintf(buf, ASUS_OLED_UNDERSCORE_NAME " %s\n", ASUS_OLED_VERSION);
|
|
|
+}
|
|
|
+
|
|
|
+static CLASS_ATTR(version, S_IRUGO, version_show, NULL);
|
|
|
+
|
|
|
+static int __init asus_oled_init(void)
|
|
|
+{
|
|
|
+ int retval = 0;
|
|
|
+ oled_class = class_create(THIS_MODULE, ASUS_OLED_UNDERSCORE_NAME);
|
|
|
+
|
|
|
+ if (IS_ERR(oled_class)) {
|
|
|
+ err("Error creating " ASUS_OLED_UNDERSCORE_NAME " class");
|
|
|
+ return PTR_ERR(oled_class);
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((retval = class_create_file(oled_class, &class_attr_version))) {
|
|
|
+ err("Error creating class version file");
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ retval = usb_register(&oled_driver);
|
|
|
+
|
|
|
+ if (retval) {
|
|
|
+ err("usb_register failed. Error number %d", retval);
|
|
|
+ goto error;
|
|
|
+ }
|
|
|
+
|
|
|
+ return retval;
|
|
|
+
|
|
|
+error:
|
|
|
+ class_destroy(oled_class);
|
|
|
+ return retval;
|
|
|
+}
|
|
|
+
|
|
|
+static void __exit asus_oled_exit(void)
|
|
|
+{
|
|
|
+ class_remove_file(oled_class, &class_attr_version);
|
|
|
+ class_destroy(oled_class);
|
|
|
+
|
|
|
+ usb_deregister(&oled_driver);
|
|
|
+}
|
|
|
+
|
|
|
+module_init (asus_oled_init);
|
|
|
+module_exit (asus_oled_exit);
|
|
|
+
|
Jakub Schmidtke