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[133.232.202.16]) by smtp.gmail.com with ESMTPSA id h89sm15728076pfh.45.2017.04.29.02.42.07 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 29 Apr 2017 02:42:08 -0700 (PDT) From: Tomohiro Yoshidomi X-Google-Original-From: Tomohiro Yoshidomi To: dmitry.torokhov@gmail.com Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, sylph23k@gmail.com Subject: [PATCH v5] Input: psxpad-spi - Add PSX (Play Station 1/2) pad SPI driver Date: Sat, 29 Apr 2017 18:40:53 +0900 Message-Id: <20170429094053.26870-1-sylph23k@gmail.com> X-Mailer: git-send-email 2.11.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP PSX pads can be connected directly to the SPI bus. Signed-off-by: Tomohiro Yoshidomi --- drivers/input/joystick/Kconfig | 17 ++ drivers/input/joystick/Makefile | 1 + drivers/input/joystick/psxpad-spi.c | 387 ++++++++++++++++++++++++++++++++++++ 3 files changed, 405 insertions(+) create mode 100644 drivers/input/joystick/psxpad-spi.c diff --git a/drivers/input/joystick/Kconfig b/drivers/input/joystick/Kconfig index 4215b538..bfbda643 100644 --- a/drivers/input/joystick/Kconfig +++ b/drivers/input/joystick/Kconfig @@ -330,4 +330,21 @@ config JOYSTICK_MAPLE To compile this as a module choose M here: the module will be called maplecontrol. +config JOYSTICK_PSXPAD_SPI + tristate "PSX (Play Station 1/2) pad with SPI Bus Driver" + depends on SPI + select INPUT_POLLDEV + help + Say Y here if you connect PSX (PS1/2) pad with SPI Interface. + + To compile this driver as a module, choose M here: the + module will be called psxpad-spi. + +config JOYSTICK_PSXPAD_SPI_FF + bool "PSX pad with SPI Bus rumble support" + depends on JOYSTICK_PSXPAD_SPI + select INPUT_FF_MEMLESS + help + Say Y here if you want to take advantage of PSX pad rumble features. + endif diff --git a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile index 92dc0de9..496fd56b 100644 --- a/drivers/input/joystick/Makefile +++ b/drivers/input/joystick/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_JOYSTICK_INTERACT) += interact.o obj-$(CONFIG_JOYSTICK_JOYDUMP) += joydump.o obj-$(CONFIG_JOYSTICK_MAGELLAN) += magellan.o obj-$(CONFIG_JOYSTICK_MAPLE) += maplecontrol.o +obj-$(CONFIG_JOYSTICK_PSXPAD_SPI) += psxpad-spi.o obj-$(CONFIG_JOYSTICK_SIDEWINDER) += sidewinder.o obj-$(CONFIG_JOYSTICK_SPACEBALL) += spaceball.o obj-$(CONFIG_JOYSTICK_SPACEORB) += spaceorb.o diff --git a/drivers/input/joystick/psxpad-spi.c b/drivers/input/joystick/psxpad-spi.c new file mode 100644 index 00000000..9684839c --- /dev/null +++ b/drivers/input/joystick/psxpad-spi.c @@ -0,0 +1,387 @@ +/* + * PSX (Play Station 1/2) pad (SPI Interface) + * + * Copyright (C) 2017 Tomohiro Yoshidomi + * Licensed under the GPL-2 or later. + * + * PSX pad plug (not socket) + * 123 456 789 + * (...|...|...) + * + * 1: DAT -> MISO (pullup with 1k owm to 3.3V) + * 2: CMD -> MOSI + * 3: 9V (for motor, if not use N.C.) + * 4: GND + * 5: 3.3V + * 6: Attention -> CS(SS) + * 7: SCK -> SCK + * 8: N.C. + * 9: ACK -> N.C. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define REVERSE_BIT(x) ((((x) & 0x80) >> 7) | (((x) & 0x40) >> 5) | (((x) & 0x20) >> 3) | (((x) & 0x10) >> 1) | (((x) & 0x08) << 1) | (((x) & 0x04) << 3) | (((x) & 0x02) << 5) | (((x) & 0x01) << 7)) + +static const u8 PSX_CMD_POLL[] = {0x01, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; +static const u8 PSX_CMD_ENTER_CFG[] = {0x01, 0x43, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00}; +static const u8 PSX_CMD_EXIT_CFG[] = {0x01, 0x43, 0x00, 0x00, 0x5A, 0x5A, 0x5A, 0x5A, 0x5A}; +static const u8 PSX_CMD_ENABLE_MOTOR[] = {0x01, 0x4D, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; + +struct psxpad { + struct spi_device *spi; + struct input_polled_dev *pdev; + struct input_dev *idev; + char phys[0x20]; + bool motor1enable; + bool motor2enable; + u8 motor1level; + u8 motor2level; + u8 pollcmd[sizeof(PSX_CMD_POLL)]; + u8 enablemotor[sizeof(PSX_CMD_ENABLE_MOTOR)]; + u8 sendbuf[0x20] ____cacheline_aligned; + u8 response[sizeof(PSX_CMD_POLL)] ____cacheline_aligned; +}; + +static int psxpad_command(struct psxpad *pad, const u8 sendcmd[], u8 response[], const u8 sendcmdlen) +{ + struct spi_transfer xfers = { + .tx_buf = pad->sendbuf, + .rx_buf = response, + .len = sendcmdlen, + }; + struct spi_message msg; + int err; + u8 loc; + + spi_message_init(&msg); + + for (loc = 0; loc < sendcmdlen; loc++) + pad->sendbuf[loc] = REVERSE_BIT(sendcmd[loc]); + + err = spi_sync_transfer(pad->spi, &xfers, 1); + if (err) { + dev_err(&pad->idev->dev, "psxpad-spi: failed SPI xfers!!\n"); + goto err_end; + } + + for (loc = 0; loc < sendcmdlen; loc++) + response[loc] = REVERSE_BIT(response[loc]); + + return 0; + + err_end: + + return err; +} + +#ifdef CONFIG_JOYSTICK_PSXPAD_SPI_FF +static void psxpad_setenablemotor(struct psxpad *pad, const bool motor1enable, const bool motor2enable) +{ + int err; + + pad->motor1enable = motor1enable; + pad->motor2enable = motor2enable; + + pad->enablemotor[3] = pad->motor1enable ? 0x00 : 0xFF; + pad->enablemotor[4] = pad->motor2enable ? 0x01 : 0xFF; + + err = psxpad_command(pad, PSX_CMD_ENTER_CFG, pad->response, sizeof(PSX_CMD_ENTER_CFG)); + if (err) { + dev_err(&pad->idev->dev, "psxpad-spi: setenablemotor: enter cfg failed!!\n"); + return; + } + err = psxpad_command(pad, pad->enablemotor, pad->response, sizeof(PSX_CMD_ENABLE_MOTOR)); + if (err) { + dev_err(&pad->idev->dev, "psxpad-spi: setenablemotor: enable motor failed!!\n"); + return; + } + err = psxpad_command(pad, PSX_CMD_EXIT_CFG, pad->response, sizeof(PSX_CMD_EXIT_CFG)); + if (err) { + dev_err(&pad->idev->dev, "psxpad-spi: setenablemotor: exit config failed!!\n"); + return; + } +} + +static void psxpad_setmotorlevel(struct psxpad *pad, const u8 motor1level, const u8 motor2level) +{ + pad->motor1level = motor1level ? 0xFF : 0x00; + pad->motor2level = motor2level; + + pad->pollcmd[3] = pad->motor1level; + pad->pollcmd[4] = pad->motor2level; +} +#else /* CONFIG_JOYSTICK_PSXPAD_SPI_FF */ +static void psxpad_setenablemotor(struct psxpad *pad, const bool motor1enable, const bool motor2enable) { } + +static void psxpad_setmotorlevel(struct psxpad *pad, const u8 motor1level, const u8 motor2level) { } +#endif /* CONFIG_JOYSTICK_PSXPAD_SPI_FF */ + +static void psxpad_spi_poll_open(struct input_polled_dev *pdev) +{ + struct psxpad *pad = pdev->private; + + pm_runtime_get_sync(&pad->spi->dev); +} + +static void psxpad_spi_poll_close(struct input_polled_dev *pdev) +{ + struct psxpad *pad = pdev->private; + + pm_runtime_put_sync(&pad->spi->dev); +} + +static void psxpad_spi_poll(struct input_polled_dev *pdev) +{ + struct psxpad *pad = pdev->private; + int err; + + err = psxpad_command(pad, pad->pollcmd, pad->response, sizeof(PSX_CMD_POLL)); + if (err) { + dev_err(&pad->idev->dev, "psxpad-spi: poll: poll cmd failed!!\n"); + return; + } + + switch (pad->response[1]) { + case 0x73: /* analog 1 */ + input_report_abs(pad->idev, ABS_X, pad->response[7]); + input_report_abs(pad->idev, ABS_Y, pad->response[8]); + input_report_abs(pad->idev, ABS_RX, pad->response[5]); + input_report_abs(pad->idev, ABS_RY, pad->response[6]); + input_report_key(pad->idev, BTN_DPAD_UP, (pad->response[3] & 0x10U) ? false : true); + input_report_key(pad->idev, BTN_DPAD_DOWN, (pad->response[3] & 0x40U) ? false : true); + input_report_key(pad->idev, BTN_DPAD_LEFT, (pad->response[3] & 0x80U) ? false : true); + input_report_key(pad->idev, BTN_DPAD_RIGHT, (pad->response[3] & 0x20U) ? false : true); + input_report_key(pad->idev, BTN_X, (pad->response[4] & 0x10U) ? false : true); + input_report_key(pad->idev, BTN_A, (pad->response[4] & 0x20U) ? false : true); + input_report_key(pad->idev, BTN_B, (pad->response[4] & 0x40U) ? false : true); + input_report_key(pad->idev, BTN_Y, (pad->response[4] & 0x80U) ? false : true); + input_report_key(pad->idev, BTN_TL, (pad->response[4] & 0x04U) ? false : true); + input_report_key(pad->idev, BTN_TR, (pad->response[4] & 0x08U) ? false : true); + input_report_key(pad->idev, BTN_TL2, (pad->response[4] & 0x01U) ? false : true); + input_report_key(pad->idev, BTN_TR2, (pad->response[4] & 0x02U) ? false : true); + input_report_key(pad->idev, BTN_THUMBL, (pad->response[3] & 0x02U) ? false : true); + input_report_key(pad->idev, BTN_THUMBR, (pad->response[3] & 0x04U) ? false : true); + input_report_key(pad->idev, BTN_SELECT, (pad->response[3] & 0x01U) ? false : true); + input_report_key(pad->idev, BTN_START, (pad->response[3] & 0x08U) ? false : true); + break; + + case 0x41: /* digital */ + input_report_abs(pad->idev, ABS_X, 0x80); + input_report_abs(pad->idev, ABS_Y, 0x80); + input_report_abs(pad->idev, ABS_RX, 0x80); + input_report_abs(pad->idev, ABS_RY, 0x80); + input_report_key(pad->idev, BTN_DPAD_UP, (pad->response[3] & 0x10U) ? false : true); + input_report_key(pad->idev, BTN_DPAD_DOWN, (pad->response[3] & 0x40U) ? false : true); + input_report_key(pad->idev, BTN_DPAD_LEFT, (pad->response[3] & 0x80U) ? false : true); + input_report_key(pad->idev, BTN_DPAD_RIGHT, (pad->response[3] & 0x20U) ? false : true); + input_report_key(pad->idev, BTN_X, (pad->response[4] & 0x10U) ? false : true); + input_report_key(pad->idev, BTN_A, (pad->response[4] & 0x20U) ? false : true); + input_report_key(pad->idev, BTN_B, (pad->response[4] & 0x40U) ? false : true); + input_report_key(pad->idev, BTN_Y, (pad->response[4] & 0x80U) ? false : true); + input_report_key(pad->idev, BTN_TL, (pad->response[4] & 0x04U) ? false : true); + input_report_key(pad->idev, BTN_TR, (pad->response[4] & 0x08U) ? false : true); + input_report_key(pad->idev, BTN_TL2, (pad->response[4] & 0x01U) ? false : true); + input_report_key(pad->idev, BTN_TR2, (pad->response[4] & 0x02U) ? false : true); + input_report_key(pad->idev, BTN_THUMBL, false); + input_report_key(pad->idev, BTN_THUMBR, false); + input_report_key(pad->idev, BTN_SELECT, (pad->response[3] & 0x01U) ? false : true); + input_report_key(pad->idev, BTN_START, (pad->response[3] & 0x08U) ? false : true); + break; + } + + input_sync(pad->idev); + psxpad_setenablemotor(pad, true, true); +} + +#ifdef CONFIG_JOYSTICK_PSXPAD_SPI_FF +static int psxpad_spi_ff(struct input_dev *idev, void *data, struct ff_effect *effect) +{ + struct psxpad *pad = idev->dev.platform_data; + + switch (effect->type) { + case FF_RUMBLE: + psxpad_setmotorlevel(pad, (effect->u.rumble.weak_magnitude >> 8) & 0xFFU, (effect->u.rumble.strong_magnitude >> 8) & 0xFFU); + break; + } + + return 0; +} + +static int psxpad_spi_init_ff(struct psxpad *pad) +{ + int err; + + input_set_capability(pad->idev, EV_FF, FF_RUMBLE); + err = input_ff_create_memless(pad->idev, NULL, psxpad_spi_ff); + if (err) { + dev_err(&pad->idev->dev, "psxpad-spi: init_ff: ff alloc failed!!\n"); + err = -ENOMEM; + } + + return err; +} +#else /* CONFIG_JOYSTICK_PSXPAD_SPI_FF */ +static inline int psxpad_spi_init_ff(struct psxpad *pad) +{ + return 0; +} +#endif /* CONFIG_JOYSTICK_PSXPAD_SPI_FF */ + +static int psxpad_spi_probe(struct spi_device *spi) +{ + struct psxpad *pad; + struct input_polled_dev *pdev; + struct input_dev *idev; + int err, i; + + pad = devm_kzalloc(&spi->dev, sizeof(struct psxpad), GFP_KERNEL); + if (!pad) { + err = -ENOMEM; + goto err_free_mem1; + } + pdev = input_allocate_polled_device(); + if (!pdev) { + dev_err(&spi->dev, "psxpad-spi: probe: pdev alloc failed!!\n"); + err = -ENOMEM; + goto err_free_mem1; + } + for (i = 0; i < sizeof(PSX_CMD_POLL); i++) + pad->pollcmd[i] = PSX_CMD_POLL[i]; + for (i = 0; i < sizeof(PSX_CMD_ENABLE_MOTOR); i++) + pad->enablemotor[i] = PSX_CMD_ENABLE_MOTOR[i]; + + /* input poll device settings */ + pad->pdev = pdev; + pad->spi = spi; + pdev->private = pad; + pdev->open = psxpad_spi_poll_open; + pdev->close = psxpad_spi_poll_close; + pdev->poll = psxpad_spi_poll; + /* poll interval is about 60fps */ + pdev->poll_interval = 16; + pdev->poll_interval_min = 8; + pdev->poll_interval_max = 32; + + /* input device settings */ + idev = pdev->input; + pad->idev = idev; + idev->name = "PSX (PS1/2) pad"; + snprintf(pad->phys, sizeof(pad->phys), "%s/input", dev_name(&spi->dev)); + idev->id.bustype = BUS_SPI; + idev->dev.parent = &spi->dev; + idev->dev.platform_data = pad; + + /* key/value map settings */ + input_set_abs_params(idev, ABS_X, 0, 255, 0, 0); + input_set_abs_params(idev, ABS_Y, 0, 255, 0, 0); + input_set_abs_params(idev, ABS_RX, 0, 255, 0, 0); + input_set_abs_params(idev, ABS_RY, 0, 255, 0, 0); + input_set_capability(idev, EV_KEY, BTN_DPAD_UP); + input_set_capability(idev, EV_KEY, BTN_DPAD_DOWN); + input_set_capability(idev, EV_KEY, BTN_DPAD_LEFT); + input_set_capability(idev, EV_KEY, BTN_DPAD_RIGHT); + input_set_capability(idev, EV_KEY, BTN_A); + input_set_capability(idev, EV_KEY, BTN_B); + input_set_capability(idev, EV_KEY, BTN_X); + input_set_capability(idev, EV_KEY, BTN_Y); + input_set_capability(idev, EV_KEY, BTN_TL); + input_set_capability(idev, EV_KEY, BTN_TR); + input_set_capability(idev, EV_KEY, BTN_TL2); + input_set_capability(idev, EV_KEY, BTN_TR2); + input_set_capability(idev, EV_KEY, BTN_THUMBL); + input_set_capability(idev, EV_KEY, BTN_THUMBR); + input_set_capability(idev, EV_KEY, BTN_SELECT); + input_set_capability(idev, EV_KEY, BTN_START); + + /* force feedback */ + err = psxpad_spi_init_ff(pad); + if (err) { + dev_err(&spi->dev, "psxpad-spi: probe: failed init ff!!\n"); + err = -ENOMEM; + goto err_free_mem2; + } + + /* SPI settings */ + spi->mode = SPI_MODE_3; + spi->bits_per_word = 8; + /* (PSX pad might be possible works 250kHz/500kHz) */ + spi->master->min_speed_hz = 125000; + spi->master->max_speed_hz = 125000; + spi_setup(spi); + + /* pad settings */ + psxpad_setmotorlevel(pad, 0, 0); + + /* register input poll device */ + err = input_register_polled_device(pdev); + if (err) { + dev_err(&spi->dev, "psxpad-spi: probe: failed register!!\n"); + goto err_free_mem2; + } + + pm_runtime_enable(&spi->dev); + + return 0; + + err_free_mem2: + input_free_polled_device(pdev); + + err_free_mem1: + devm_kfree(&spi->dev, pad); + + return err; +} + + +static int psxpad_spi_remove(struct spi_device *spi) +{ + return 0; +} + +static int __maybe_unused psxpad_spi_suspend(struct device *dev) +{ + struct spi_device *spi = to_spi_device(dev); + struct psxpad *pad = spi_get_drvdata(spi); + + psxpad_setmotorlevel(pad, 0, 0); + + return 0; +} + +static int __maybe_unused psxpad_spi_resume(struct device *dev) +{ + return 0; +} + +static SIMPLE_DEV_PM_OPS(psxpad_spi_pm, psxpad_spi_suspend, psxpad_spi_resume); + +static const struct spi_device_id psxpad_spi_id[] = { + { "psxpad-spi", 0 }, + { } +}; +MODULE_DEVICE_TABLE(spi, psxpad_spi_id); + +static struct spi_driver psxpad_spi_driver = { + .driver = { + .name = "psxpad-spi", + .pm = &psxpad_spi_pm, + }, + .id_table = psxpad_spi_id, + .probe = psxpad_spi_probe, + .remove = psxpad_spi_remove, +}; + +module_spi_driver(psxpad_spi_driver); + +MODULE_AUTHOR("Tomohiro Yoshidomi "); +MODULE_DESCRIPTION("PSX (Play Station 1/2) pad with SPI Bus Driver"); +MODULE_LICENSE("GPL");