Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *  Copyright (c) 1999-2001 Vojtech Pavlik
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *  Based on the work of:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *	David Thompson
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *	Joseph Krahn
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * SpaceTec SpaceBall 2003/3003/4000 FLX driver for Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/serio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define DRIVER_DESC	"SpaceTec SpaceBall 2003/3003/4000 FLX driver"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) MODULE_DESCRIPTION(DRIVER_DESC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  * Constants.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #define SPACEBALL_MAX_LENGTH	128
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define SPACEBALL_MAX_ID	9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #define SPACEBALL_1003      1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define SPACEBALL_2003B     3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define SPACEBALL_2003C     4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define SPACEBALL_3003C     7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #define SPACEBALL_4000FLX   8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) #define SPACEBALL_4000FLX_L 9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) static int spaceball_axes[] = { ABS_X, ABS_Z, ABS_Y, ABS_RX, ABS_RZ, ABS_RY };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) static char *spaceball_names[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	"?", "SpaceTec SpaceBall 1003", "SpaceTec SpaceBall 2003", "SpaceTec SpaceBall 2003B",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	"SpaceTec SpaceBall 2003C", "SpaceTec SpaceBall 3003", "SpaceTec SpaceBall SpaceController",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	"SpaceTec SpaceBall 3003C", "SpaceTec SpaceBall 4000FLX", "SpaceTec SpaceBall 4000FLX Lefty" };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51)  * Per-Ball data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) struct spaceball {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	struct input_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	int escape;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	unsigned char data[SPACEBALL_MAX_LENGTH];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	char phys[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  * spaceball_process_packet() decodes packets the driver receives from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  * SpaceBall.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) static void spaceball_process_packet(struct spaceball* spaceball)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	struct input_dev *dev = spaceball->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	unsigned char *data = spaceball->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	if (spaceball->idx < 2) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	switch (spaceball->data[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 		case 'D':					/* Ball data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 			if (spaceball->idx != 15) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 			/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 			 * Skip first three bytes; read six axes worth of data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 			 * Axis values are signed 16-bit big-endian.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 			data += 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 			for (i = 0; i < ARRAY_SIZE(spaceball_axes); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 				input_report_abs(dev, spaceball_axes[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 					(__s16)get_unaligned_be16(&data[i * 2]));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		case 'K':					/* Button data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 			if (spaceball->idx != 3) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 			input_report_key(dev, BTN_1, (data[2] & 0x01) || (data[2] & 0x20));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 			input_report_key(dev, BTN_2, data[2] & 0x02);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 			input_report_key(dev, BTN_3, data[2] & 0x04);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 			input_report_key(dev, BTN_4, data[2] & 0x08);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 			input_report_key(dev, BTN_5, data[1] & 0x01);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 			input_report_key(dev, BTN_6, data[1] & 0x02);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 			input_report_key(dev, BTN_7, data[1] & 0x04);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 			input_report_key(dev, BTN_8, data[1] & 0x10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		case '.':					/* Advanced button data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 			if (spaceball->idx != 3) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 			input_report_key(dev, BTN_1, data[2] & 0x01);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 			input_report_key(dev, BTN_2, data[2] & 0x02);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 			input_report_key(dev, BTN_3, data[2] & 0x04);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 			input_report_key(dev, BTN_4, data[2] & 0x08);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 			input_report_key(dev, BTN_5, data[2] & 0x10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 			input_report_key(dev, BTN_6, data[2] & 0x20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 			input_report_key(dev, BTN_7, data[2] & 0x80);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 			input_report_key(dev, BTN_8, data[1] & 0x01);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 			input_report_key(dev, BTN_9, data[1] & 0x02);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 			input_report_key(dev, BTN_A, data[1] & 0x04);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 			input_report_key(dev, BTN_B, data[1] & 0x08);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 			input_report_key(dev, BTN_C, data[1] & 0x10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 			input_report_key(dev, BTN_MODE, data[1] & 0x20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		case 'E':					/* Device error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 			spaceball->data[spaceball->idx - 1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 			printk(KERN_ERR "spaceball: Device error. [%s]\n", spaceball->data + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		case '?':					/* Bad command packet */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 			spaceball->data[spaceball->idx - 1] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 			printk(KERN_ERR "spaceball: Bad command. [%s]\n", spaceball->data + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	input_sync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)  * Spaceball 4000 FLX packets all start with a one letter packet-type decriptor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)  * and end in 0x0d. It uses '^' as an escape for CR, XOFF and XON characters which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)  * can occur in the axis values.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static irqreturn_t spaceball_interrupt(struct serio *serio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		unsigned char data, unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	struct spaceball *spaceball = serio_get_drvdata(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	switch (data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		case 0xd:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 			spaceball_process_packet(spaceball);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 			spaceball->idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 			spaceball->escape = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		case '^':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 			if (!spaceball->escape) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 				spaceball->escape = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 			spaceball->escape = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		case 'M':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		case 'Q':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		case 'S':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 			if (spaceball->escape) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 				spaceball->escape = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 				data &= 0x1f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 			fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 			if (spaceball->escape)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 				spaceball->escape = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			if (spaceball->idx < SPACEBALL_MAX_LENGTH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 				spaceball->data[spaceball->idx++] = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)  * spaceball_disconnect() is the opposite of spaceball_connect()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static void spaceball_disconnect(struct serio *serio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	struct spaceball* spaceball = serio_get_drvdata(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	serio_close(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	serio_set_drvdata(serio, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	input_unregister_device(spaceball->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	kfree(spaceball);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)  * spaceball_connect() is the routine that is called when someone adds a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)  * new serio device that supports Spaceball protocol and registers it as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)  * an input device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) static int spaceball_connect(struct serio *serio, struct serio_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	struct spaceball *spaceball;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	int err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	int i, id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	if ((id = serio->id.id) > SPACEBALL_MAX_ID)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	spaceball = kmalloc(sizeof(struct spaceball), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	input_dev = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	if (!spaceball || !input_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		goto fail1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	spaceball->dev = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	snprintf(spaceball->phys, sizeof(spaceball->phys), "%s/input0", serio->phys);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	input_dev->name = spaceball_names[id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	input_dev->phys = spaceball->phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	input_dev->id.bustype = BUS_RS232;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	input_dev->id.vendor = SERIO_SPACEBALL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	input_dev->id.product = id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	input_dev->id.version = 0x0100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	input_dev->dev.parent = &serio->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	switch (id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		case SPACEBALL_4000FLX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		case SPACEBALL_4000FLX_L:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 			input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_9);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 			input_dev->keybit[BIT_WORD(BTN_A)] |= BIT_MASK(BTN_A) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 				BIT_MASK(BTN_B) | BIT_MASK(BTN_C) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 				BIT_MASK(BTN_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 			fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 			input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_2) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 				BIT_MASK(BTN_3) | BIT_MASK(BTN_4) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 				BIT_MASK(BTN_5) | BIT_MASK(BTN_6) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 				BIT_MASK(BTN_7) | BIT_MASK(BTN_8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 			fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		case SPACEBALL_3003C:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 			input_dev->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_1) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 				BIT_MASK(BTN_8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	for (i = 0; i < 3; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		input_set_abs_params(input_dev, ABS_X + i, -8000, 8000, 8, 40);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		input_set_abs_params(input_dev, ABS_RX + i, -1600, 1600, 2, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	serio_set_drvdata(serio, spaceball);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	err = serio_open(serio, drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 		goto fail2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	err = input_register_device(spaceball->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		goto fail3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)  fail3:	serio_close(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)  fail2:	serio_set_drvdata(serio, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)  fail1:	input_free_device(input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	kfree(spaceball);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)  * The serio driver structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) static const struct serio_device_id spaceball_serio_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		.type	= SERIO_RS232,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 		.proto	= SERIO_SPACEBALL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 		.id	= SERIO_ANY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		.extra	= SERIO_ANY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	{ 0 }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) MODULE_DEVICE_TABLE(serio, spaceball_serio_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static struct serio_driver spaceball_drv = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	.driver		= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		.name	= "spaceball",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	.description	= DRIVER_DESC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	.id_table	= spaceball_serio_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	.interrupt	= spaceball_interrupt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	.connect	= spaceball_connect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	.disconnect	= spaceball_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) module_serio_driver(spaceball_drv);