From: Vojtech Pavlik <vojtech@suse.cz>
To: yokotak@rmail.plala.or.jp
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] db9.c (Re: [PATCH] gamecon (added support for Sega Saturn controller), kernel 2.4.20)
Date: Sat, 21 Jun 2003 17:59:55 +0200 [thread overview]
Message-ID: <20030621175955.A29057@ucw.cz> (raw)
In-Reply-To: <20030610130209.HXKK7400.mps3.plala.or.jp@rmail.mail.plala.or.jp>; from yokotak@rmail.plala.or.jp on Tue, Jun 10, 2003 at 10:02:04PM +0900
On Tue, Jun 10, 2003 at 10:02:04PM +0900, yokotak@rmail.plala.or.jp wrote:
> Hello,
>
> This is db9.c patch to support Saturn DPP.
> I merged original interface section into DPP section to support
> analog controllers. I gave priority to documentation of
> joystick-parport.txt.
>
> Set 11 or 12 in 'type' to use DPP (11 for a connector, 12 for two
> connectors).
>
> Tested with:
> * DPP interface (one connector) and joystick-parport.txt interface.
> * Digital controller, saturn keyboard (as joypad), racing controller,
> mission stick, multi controller, shuttle mouse, multi terminal 6,
> and sankyo ff.
>
> NOT tested with:
> * DPP interface (two connectors).
> * Virtua Gun, mission stick x2, and other controllers.
>
> Thank you for your reading,
> yokota
Thanks for the patch! I applied it to my kernel tree. How about a
patch to update for the joystick-parport.txt documentation file?
> --- db9.c.orig 2001-09-13 07:34:06.000000000 +0900
> +++ db9.c 2003-04-10 23:03:49.000000000 +0900
> @@ -55,7 +55,9 @@
> #define DB9_MULTI_0802 0x08
> #define DB9_MULTI_0802_2 0x09
> #define DB9_CD32_PAD 0x0A
> -#define DB9_MAX_PAD 0x0B
> +#define DB9_SATURN_DPP 0x0B
> +#define DB9_SATURN_DPP_2 0x0C
> +#define DB9_MAX_PAD 0x0D
>
> #define DB9_UP 0x01
> #define DB9_DOWN 0x02
> @@ -69,10 +71,7 @@
> #define DB9_NORMAL 0x0a
> #define DB9_NOSELECT 0x08
>
> -#define DB9_SATURN0 0x00
> -#define DB9_SATURN1 0x02
> -#define DB9_SATURN2 0x04
> -#define DB9_SATURN3 0x06
> +#define DB9_MAX_DEVICES 2
>
> #define DB9_GENESIS6_DELAY 14
> #define DB9_REFRESH_TIME HZ/100
> @@ -82,7 +81,7 @@
> static int db9_3[] __initdata = { -1, 0 };
>
> struct db9 {
> - struct input_dev dev[2];
> + struct input_dev dev[DB9_MAX_DEVICES];
> struct timer_list timer;
> struct pardevice *pd;
> int mode;
> @@ -95,12 +94,247 @@
> static short db9_genesis_btn[] = { BTN_START, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_MODE };
> static short db9_cd32_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_START };
>
> -static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 8, 1, 1, 7 };
> +static char db9_buttons[DB9_MAX_PAD] = { 0, 1, 2, 4, 0, 6, 8, 9, 1, 1, 7, 9, 9 };
> static short *db9_btn[DB9_MAX_PAD] = { NULL, db9_multi_btn, db9_multi_btn, db9_genesis_btn, NULL, db9_genesis_btn,
> - db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn };
> + db9_genesis_btn, db9_cd32_btn, db9_multi_btn, db9_multi_btn, db9_cd32_btn,
> + db9_cd32_btn, db9_cd32_btn };
> static char *db9_name[DB9_MAX_PAD] = { NULL, "Multisystem joystick", "Multisystem joystick (2 fire)", "Genesis pad",
> NULL, "Genesis 5 pad", "Genesis 6 pad", "Saturn pad", "Multisystem (0.8.0.2) joystick",
> - "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad" };
> + "Multisystem (0.8.0.2-dual) joystick", "Amiga CD-32 pad", "Saturn dpp", "Saturn dpp dual" };
> +
> +static const int db9_max_pads[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 6, 1, 2, 1, 6, 12 };
> +static const int db9_num_axis[DB9_MAX_PAD] = { 0, 2, 2, 2, 0, 2, 2, 7, 2, 2, 2 ,7, 7 };
> +static const short db9_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_RZ, ABS_Z, ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
> +static const int db9_bidirectional[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0 };
> +static const int db9_reverse[DB9_MAX_PAD] = { 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 };
> +
> +/*
> + * Saturn controllers
> + */
> +#define DB9_SATURN_DELAY 300
> +static const int db9_saturn_byte[] = { 1, 1, 1, 2, 2, 2, 2, 2, 1 };
> +static const unsigned char db9_saturn_mask[] = { 0x04, 0x01, 0x02, 0x40, 0x20, 0x10, 0x08, 0x80, 0x08 };
> +
> +/*
> + * db9_saturn_write_sub() writes 2 bit data.
> + */
> +static void db9_saturn_write_sub(struct parport *port, int type, unsigned char data, int powered, int pwr_sub)
> +{
> + unsigned char c;
> +
> + switch (type) {
> + case 1: /* DPP1 */
> + c = 0x80 | 0x30 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | data;
> + parport_write_data(port, c);
> + break;
> + case 2: /* DPP2 */
> + c = 0x40 | data << 4 | (powered ? 0x08 : 0) | (pwr_sub ? 0x04 : 0) | 0x03;
> + parport_write_data(port, c);
> + break;
> + case 0: /* DB9 */
> + c = ((((data & 2) ? 2 : 0) | ((data & 1) ? 4 : 0)) ^ 0x02) | !powered;
> + parport_write_control(port, c);
> + break;
> + }
> +}
> +
> +/*
> + * gc_saturn_read_sub() reads 4 bit data.
> + */
> +static unsigned char db9_saturn_read_sub(struct parport *port, int type)
> +{
> + unsigned char data;
> +
> + if (type) {
> + /* DPP */
> + data = parport_read_status(port) ^ 0x80;
> + return (data & 0x80 ? 1 : 0) | (data & 0x40 ? 2 : 0)
> + | (data & 0x20 ? 4 : 0) | (data & 0x10 ? 8 : 0);
> + } else {
> + /* DB9 */
> + data = parport_read_data(port) & 0x0f;
> + return (data & 0x8 ? 1 : 0) | (data & 0x4 ? 2 : 0)
> + | (data & 0x2 ? 4 : 0) | (data & 0x1 ? 8 : 0);
> + }
> +}
> +
> +/*
> + * db9_saturn_read_analog() sends clock and reads 8 bit data.
> + */
> +static unsigned char db9_saturn_read_analog(struct parport *port, int type, int powered)
> +{
> + unsigned char data;
> +
> + db9_saturn_write_sub(port, type, 0, powered, 0);
> + udelay(DB9_SATURN_DELAY);
> + data = db9_saturn_read_sub(port, type) << 4;
> + db9_saturn_write_sub(port, type, 2, powered, 0);
> + udelay(DB9_SATURN_DELAY);
> + data |= db9_saturn_read_sub(port, type);
> + return data;
> +}
> +
> +/*
> + * db9_saturn_read_packet() reads whole saturn packet at connector
> + * and returns device identifier code.
> + */
> +static unsigned char db9_saturn_read_packet(struct parport *port, unsigned char *data, int type, int powered)
> +{
> + int i, j;
> + unsigned char tmp;
> +
> + db9_saturn_write_sub(port, type, 3, powered, 0);
> + data[0] = db9_saturn_read_sub(port, type);
> + switch (data[0] & 0x0f) {
> + case 0xf:
> + /* 1111 no pad */
> + return data[0] = 0xff;
> + case 0x4: case 0x4 | 0x8:
> + /* ?100 : digital controller */
> + db9_saturn_write_sub(port, type, 0, powered, 1);
> + data[2] = db9_saturn_read_sub(port, type) << 4;
> + db9_saturn_write_sub(port, type, 2, powered, 1);
> + data[1] = db9_saturn_read_sub(port, type) << 4;
> + db9_saturn_write_sub(port, type, 1, powered, 1);
> + data[1] |= db9_saturn_read_sub(port, type);
> + db9_saturn_write_sub(port, type, 3, powered, 1);
> + /* data[2] |= db9_saturn_read_sub(port, type); */
> + data[2] |= data[0];
> + return data[0] = 0x02;
> + case 0x1:
> + /* 0001 : analog controller or multitap */
> + db9_saturn_write_sub(port, type, 2, powered, 0);
> + udelay(DB9_SATURN_DELAY);
> + data[0] = db9_saturn_read_analog(port, type, powered);
> + if (data[0] != 0x41) {
> + /* read analog controller */
> + for (i = 0; i < (data[0] & 0x0f); i++)
> + data[i + 1] = db9_saturn_read_analog(port, type, powered);
> + db9_saturn_write_sub(port, type, 3, powered, 0);
> + return data[0];
> + } else {
> + /* read multitap */
> + if (db9_saturn_read_analog(port, type, powered) != 0x60)
> + return data[0] = 0xff;
> + for (i = 0; i < 60; i += 10) {
> + data[i] = db9_saturn_read_analog(port, type, powered);
> + if (data[i] != 0xff)
> + /* read each pad */
> + for (j = 0; j < (data[i] & 0x0f); j++)
> + data[i + j + 1] = db9_saturn_read_analog(port, type, powered);
> + }
> + db9_saturn_write_sub(port, type, 3, powered, 0);
> + return 0x41;
> + }
> + case 0x0:
> + /* 0000 : mouse */
> + db9_saturn_write_sub(port, type, 2, powered, 0);
> + udelay(DB9_SATURN_DELAY);
> + tmp = db9_saturn_read_analog(port, type, powered);
> + if (tmp == 0xff) {
> + for (i = 0; i < 3; i++)
> + data[i + 1] = db9_saturn_read_analog(port, type, powered);
> + db9_saturn_write_sub(port, type, 3, powered, 0);
> + return data[0] = 0xe3;
> + }
> + default:
> + return data[0];
> + }
> +}
> +
> +/*
> + * db9_saturn_report() analyzes packet and reports.
> + */
> +static int db9_saturn_report(unsigned char id, unsigned char data[60], struct input_dev *dev, int n, int max_pads)
> +{
> + int tmp, i, j;
> +
> + tmp = (id == 0x41) ? 60 : 10;
> + for (j = 0; (j < tmp) && (n < max_pads); j += 10, n++) {
> + switch (data[j]) {
> + case 0x16: /* multi controller (analog 4 axis) */
> + input_report_abs(dev + n, db9_abs[5], data[j + 6]);
> + case 0x15: /* mission stick (analog 3 axis) */
> + input_report_abs(dev + n, db9_abs[3], data[j + 4]);
> + input_report_abs(dev + n, db9_abs[4], data[j + 5]);
> + case 0x13: /* racing controller (analog 1 axis) */
> + input_report_abs(dev + n, db9_abs[2], data[j + 3]);
> + case 0x34: /* saturn keyboard (udlr ZXC ASD QE Esc) */
> + case 0x02: /* digital pad (digital 2 axis + buttons) */
> + input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
> + input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
> + for (i = 0; i < 9; i++)
> + input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
> + break;
> + case 0x19: /* mission stick x2 (analog 6 axis + buttons) */
> + input_report_abs(dev + n, db9_abs[0], !(data[j + 1] & 128) - !(data[j + 1] & 64));
> + input_report_abs(dev + n, db9_abs[1], !(data[j + 1] & 32) - !(data[j + 1] & 16));
> + for (i = 0; i < 9; i++)
> + input_report_key(dev + n, db9_cd32_btn[i], ~data[j + db9_saturn_byte[i]] & db9_saturn_mask[i]);
> + input_report_abs(dev + n, db9_abs[2], data[j + 3]);
> + input_report_abs(dev + n, db9_abs[3], data[j + 4]);
> + input_report_abs(dev + n, db9_abs[4], data[j + 5]);
> + /*
> + input_report_abs(dev + n, db9_abs[8], (data[j + 6] & 128 ? 0 : 1) - (data[j + 6] & 64 ? 0 : 1));
> + input_report_abs(dev + n, db9_abs[9], (data[j + 6] & 32 ? 0 : 1) - (data[j + 6] & 16 ? 0 : 1));
> + */
> + input_report_abs(dev + n, db9_abs[6], data[j + 7]);
> + input_report_abs(dev + n, db9_abs[7], data[j + 8]);
> + input_report_abs(dev + n, db9_abs[5], data[j + 9]);
> + break;
> + case 0xd3: /* sankyo ff (analog 1 axis + stop btn) */
> + input_report_key(dev + n, BTN_A, data[j + 3] & 0x80);
> + input_report_abs(dev + n, db9_abs[2], data[j + 3] & 0x7f);
> + break;
> + case 0xe3: /* shuttle mouse (analog 2 axis + buttons. signed value) */
> + input_report_key(dev + n, BTN_START, data[j + 1] & 0x08);
> + input_report_key(dev + n, BTN_A, data[j + 1] & 0x04);
> + input_report_key(dev + n, BTN_C, data[j + 1] & 0x02);
> + input_report_key(dev + n, BTN_B, data[j + 1] & 0x01);
> + input_report_abs(dev + n, db9_abs[2], data[j + 2] ^ 0x80);
> + input_report_abs(dev + n, db9_abs[3], (0xff-(data[j + 3] ^ 0x80))+1); /* */
> + break;
> + case 0xff:
> + default: /* no pad */
> + input_report_abs(dev + n, db9_abs[0], 0);
> + input_report_abs(dev + n, db9_abs[1], 0);
> + for (i = 0; i < 9; i++)
> + input_report_key(dev + n, db9_cd32_btn[i], 0);
> + break;
> + }
> + }
> + return n;
> +}
> +
> +static int db9_saturn(int mode, struct parport *port, struct input_dev *dev)
> +{
> + unsigned char id, data[60];
> + int type, n, max_pads;
> + int tmp, i;
> +
> + switch (mode) {
> + case DB9_SATURN_PAD:
> + type = 0;
> + n = 1;
> + break;
> + case DB9_SATURN_DPP:
> + type = 1;
> + n = 1;
> + break;
> + case DB9_SATURN_DPP_2:
> + type = 1;
> + n = 2;
> + break;
> + default:
> + return -1;
> + }
> + max_pads = min(db9_max_pads[mode], DB9_MAX_DEVICES);
> + for (tmp = 0, i = 0; i < n; i++) {
> + id = db9_saturn_read_packet(port, data, type + i, 1);
> + tmp = db9_saturn_report(id, data, dev, tmp, max_pads);
> + }
> + return 0;
> +}
>
> static void db9_timer(unsigned long private)
> {
> @@ -221,28 +455,10 @@
> break;
>
> case DB9_SATURN_PAD:
> + case DB9_SATURN_DPP:
> + case DB9_SATURN_DPP_2:
>
> - parport_write_control(port, DB9_SATURN0);
> - data = parport_read_data(port);
> -
> - input_report_key(dev, BTN_Y, ~data & DB9_LEFT);
> - input_report_key(dev, BTN_Z, ~data & DB9_DOWN);
> - input_report_key(dev, BTN_TL, ~data & DB9_UP);
> - input_report_key(dev, BTN_TR, ~data & DB9_RIGHT);
> -
> - parport_write_control(port, DB9_SATURN2);
> - data = parport_read_data(port);
> -
> - input_report_abs(dev, ABS_X, (data & DB9_RIGHT ? 0 : 1) - (data & DB9_LEFT ? 0 : 1));
> - input_report_abs(dev, ABS_Y, (data & DB9_DOWN ? 0 : 1) - (data & DB9_UP ? 0 : 1));
> -
> - parport_write_control(port, DB9_NORMAL);
> - data = parport_read_data(port);
> -
> - input_report_key(dev, BTN_A, ~data & DB9_LEFT);
> - input_report_key(dev, BTN_B, ~data & DB9_UP);
> - input_report_key(dev, BTN_C, ~data & DB9_DOWN);
> - input_report_key(dev, BTN_X, ~data & DB9_RIGHT);
> + db9_saturn(db9->mode, port, dev);
> break;
>
> case DB9_CD32_PAD:
> @@ -276,8 +492,10 @@
> if (!db9->used++) {
> parport_claim(db9->pd);
> parport_write_data(port, 0xff);
> - parport_data_reverse(port);
> - parport_write_control(port, DB9_NORMAL);
> + if (db9_reverse[db9->mode]) {
> + parport_data_reverse(port);
> + parport_write_control(port, DB9_NORMAL);
> + }
> mod_timer(&db9->timer, jiffies + DB9_REFRESH_TIME);
> }
>
> @@ -318,11 +536,13 @@
> return NULL;
> }
>
> - if (!(pp->modes & PARPORT_MODE_TRISTATE) && config[1] != DB9_MULTI_0802) {
> - printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
> - return NULL;
> + if (db9_bidirectional[config[1]]) {
> + if (!(pp->modes & PARPORT_MODE_TRISTATE)) {
> + printk(KERN_ERR "db9.c: specified parport is not bidirectional\n");
> + return NULL;
> + }
> }
> -
> +
> if (!(db9 = kmalloc(sizeof(struct db9), GFP_KERNEL)))
> return NULL;
> memset(db9, 0, sizeof(struct db9));
> @@ -340,7 +560,7 @@
> return NULL;
> }
>
> - for (i = 0; i < 1 + (db9->mode == DB9_MULTI_0802_2); i++) {
> + for (i = 0; i < (min(db9_max_pads[db9->mode], DB9_MAX_DEVICES)); i++) {
>
> db9->dev[i].private = db9;
> db9->dev[i].open = db9_open;
> @@ -353,14 +573,19 @@
> db9->dev[i].idversion = 0x0100;
>
> db9->dev[i].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
> - db9->dev[i].absbit[0] = BIT(ABS_X) | BIT(ABS_Y);
> -
> for (j = 0; j < db9_buttons[db9->mode]; j++)
> set_bit(db9_btn[db9->mode][j], db9->dev[i].keybit);
> -
> - db9->dev[i].absmin[ABS_X] = -1; db9->dev[i].absmax[ABS_X] = 1;
> - db9->dev[i].absmin[ABS_Y] = -1; db9->dev[i].absmax[ABS_Y] = 1;
> -
> + for (j = 0; j < db9_num_axis[db9->mode]; j++) {
> + set_bit(db9_abs[j], db9->dev[i].absbit);
> + if (j < 2) {
> + db9->dev[i].absmin[db9_abs[j]] = -1;
> + db9->dev[i].absmax[db9_abs[j]] = 1;
> + } else {
> + db9->dev[i].absmin[db9_abs[j]] = 1;
> + db9->dev[i].absmax[db9_abs[j]] = 255;
> + db9->dev[i].absflat[db9_abs[j]] = 0;
> + }
> + }
> input_register_device(db9->dev + i);
> printk(KERN_INFO "input%d: %s on %s\n",
> db9->dev[i].number, db9_name[db9->mode], db9->pd->port->name);
> @@ -414,7 +639,7 @@
>
> for (i = 0; i < 3; i++)
> if (db9_base[i]) {
> - for (j = 0; j < 1 + (db9_base[i]->mode == DB9_MULTI_0802_2); j++)
> + for (j = 0; j < min(db9_max_pads[db9_base[i]->mode], DB9_MAX_DEVICES); j++)
> input_unregister_device(db9_base[i]->dev + j);
> parport_unregister_device(db9_base[i]->pd);
> }
>
>
>
>
--
Vojtech Pavlik
SuSE Labs, SuSE CR
next prev parent reply other threads:[~2003-06-21 15:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-06 14:22 [PATCH] gamecon (added support for Sega Saturn controller), kernel 2.4.20 yokotak
2003-01-26 10:39 ` Vojtech Pavlik
2003-01-27 10:34 ` yokotak
2003-01-27 10:36 ` Vojtech Pavlik
2003-01-28 12:34 ` yokotak
2003-06-10 13:02 ` [PATCH] db9.c (Re: [PATCH] gamecon (added support for Sega Saturn controller), kernel 2.4.20) yokotak
2003-06-21 15:59 ` Vojtech Pavlik [this message]
2003-06-23 13:17 ` yokotak
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