tty-usb-kobil-sct: Coding style (dee0a7cc) · Commits · e / devices / android_kernel_oneplus_sm8150

drivers/usb/serial/kobil_sct.c

+297 −260

Original line number	Diff line number	Diff line
		@@ -44,7 +44,7 @@
		#include <linux/tty_flip.h>
		#include <linux/module.h>
		#include <linux/spinlock.h>
		#include <asm/uaccess.h>
		#include <linux/uaccess.h>
		#include <linux/usb.h>
		#include <linux/usb/serial.h>
		#include <linux/ioctl.h>
		@@ -134,9 +134,9 @@ static struct usb_serial_driver kobil_device = {
		struct kobil_private {
		int write_int_endpoint_address;
		int read_int_endpoint_address;
		unsigned char buf[KOBIL_BUF_LENGTH]; // buffer for the APDU to send
		int filled; // index of the last char in buf
		int cur_pos; // index of the next char to send in buf
		unsigned char buf[KOBIL_BUF_LENGTH]; /* buffer for the APDU to send */
		int filled; /* index of the last char in buf */
		int cur_pos; /* index of the next char to send in buf */
		__u16 device_type;
		};

		@@ -152,9 +152,8 @@ static int kobil_startup (struct usb_serial *serial)
		struct usb_host_endpoint *endpoint;

		priv = kmalloc(sizeof(struct kobil_private), GFP_KERNEL);
		if (!priv){
		if (!priv)
		return -ENOMEM;
		}

		priv->filled = 0;
		priv->cur_pos = 0;
		@@ -165,7 +164,8 @@ static int kobil_startup (struct usb_serial *serial)
		printk(KERN_DEBUG "KOBIL B1 PRO / KAAN PRO detected\n");
		break;
		case KOBIL_ADAPTER_K_PRODUCT_ID:
		printk(KERN_DEBUG "KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
		printk(KERN_DEBUG
		"KOBIL KAAN Standard Plus / SecOVID Reader Plus detected\n");
		break;
		case KOBIL_USBTWIN_PRODUCT_ID:
		printk(KERN_DEBUG "KOBIL USBTWIN detected\n");
		@@ -176,7 +176,7 @@ static int kobil_startup (struct usb_serial *serial)
		}
		usb_set_serial_port_data(serial->port[0], priv);

		// search for the necessary endpoints
		/* search for the necessary endpoints */
		pdev = serial->dev;
		actconfig = pdev->actconfig;
		interface = actconfig->interface[0];
		@@ -186,12 +186,16 @@ static int kobil_startup (struct usb_serial *serial)
		for (i = 0; i < altsetting->desc.bNumEndpoints; i++) {
		endpoint = &altsetting->endpoint[i];
		if (usb_endpoint_is_int_out(&endpoint->desc)) {
		dbg("%s Found interrupt out endpoint. Address: %d", __func__, endpoint->desc.bEndpointAddress);
		priv->write_int_endpoint_address = endpoint->desc.bEndpointAddress;
		dbg("%s Found interrupt out endpoint. Address: %d",
		__func__, endpoint->desc.bEndpointAddress);
		priv->write_int_endpoint_address =
		endpoint->desc.bEndpointAddress;
		}
		if (usb_endpoint_is_int_in(&endpoint->desc)) {
		dbg("%s Found interrupt in endpoint. Address: %d", __func__, endpoint->desc.bEndpointAddress);
		priv->read_int_endpoint_address = endpoint->desc.bEndpointAddress;
		dbg("%s Found interrupt in endpoint. Address: %d",
		__func__, endpoint->desc.bEndpointAddress);
		priv->read_int_endpoint_address =
		endpoint->desc.bEndpointAddress;
		}
		}
		return 0;
		@@ -204,9 +208,8 @@ static void kobil_shutdown (struct usb_serial *serial)
		dbg("%s - port %d", __func__, serial->port[0]->number);

		for (i = 0; i < serial->num_ports; ++i) {
		while (serial->port[i]->port.count > 0) {
		while (serial->port[i]->port.count > 0)
		kobil_close(NULL, serial->port[i], NULL);
		}
		kfree(usb_get_serial_port_data(serial->port[i]));
		usb_set_serial_port_data(serial->port[i], NULL);
		}
		@@ -225,7 +228,7 @@ static int kobil_open(struct tty_struct *tty,
		dbg("%s - port %d", __func__, port->number);
		priv = usb_get_serial_port_data(port);

		// someone sets the dev to 0 if the close method has been called
		/* someone sets the dev to 0 if the close method has been called */
		port->interrupt_in_urb->dev = port->serial->dev;


		@@ -238,29 +241,33 @@ static int kobil_open(struct tty_struct *tty,

		/* Default to echo off and other sane device settings */
		tty->termios->c_lflag = 0;
		tty->termios->c_lflag &= ~(ISIG \| ICANON \| ECHO \| IEXTEN \| XCASE);
		tty->termios->c_lflag &= ~(ISIG \| ICANON \| ECHO \| IEXTEN \|
		XCASE);
		tty->termios->c_iflag = IGNBRK \| IGNPAR \| IXOFF;
		tty->termios->c_oflag &= ~ONLCR; // do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D)
		/* do NOT translate CR to CR-NL (0x0A -> 0x0A 0x0D) */
		tty->termios->c_oflag &= ~ONLCR;
		}
		// allocate memory for transfer buffer
		/* allocate memory for transfer buffer */
		transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
		if (! transfer_buffer) {
		if (!transfer_buffer)
		return -ENOMEM;
		}

		// allocate write_urb
		/* allocate write_urb */
		if (!port->write_urb) {
		dbg("%s - port %d Allocating port->write_urb", __func__, port->number);
		dbg("%s - port %d Allocating port->write_urb",
		__func__, port->number);
		port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
		if (!port->write_urb) {
		dbg("%s - port %d usb_alloc_urb failed", __func__, port->number);
		dbg("%s - port %d usb_alloc_urb failed",
		__func__, port->number);
		kfree(transfer_buffer);
		return -ENOMEM;
		}
		}

		// allocate memory for write_urb transfer buffer
		port->write_urb->transfer_buffer = kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
		/* allocate memory for write_urb transfer buffer */
		port->write_urb->transfer_buffer =
		kmalloc(write_urb_transfer_buffer_length, GFP_KERNEL);
		if (!port->write_urb->transfer_buffer) {
		kfree(transfer_buffer);
		usb_free_urb(port->write_urb);
		@@ -268,7 +275,7 @@ static int kobil_open(struct tty_struct *tty,
		return -ENOMEM;
		}

		// get hardware version
		/* get hardware version */
		result = usb_control_msg(port->serial->dev,
		usb_rcvctrlpipe(port->serial->dev, 0),
		SUSBCRequest_GetMisc,
		@@ -279,10 +286,12 @@ static int kobil_open(struct tty_struct *tty,
		transfer_buffer_length,
		KOBIL_TIMEOUT
		);
		dbg("%s - port %d Send get_HW_version URB returns: %i", __func__, port->number, result);
		dbg("Harware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );
		dbg("%s - port %d Send get_HW_version URB returns: %i",
		__func__, port->number, result);
		dbg("Harware version: %i.%i.%i",
		transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);

		// get firmware version
		/* get firmware version */
		result = usb_control_msg(port->serial->dev,
		usb_rcvctrlpipe(port->serial->dev, 0),
		SUSBCRequest_GetMisc,
		@@ -293,24 +302,29 @@ static int kobil_open(struct tty_struct *tty,
		transfer_buffer_length,
		KOBIL_TIMEOUT
		);
		dbg("%s - port %d Send get_FW_version URB returns: %i", __func__, port->number, result);
		dbg("Firmware version: %i.%i.%i", transfer_buffer[0], transfer_buffer[1], transfer_buffer[2] );

		if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID \|\| priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
		// Setting Baudrate, Parity and Stopbits
		dbg("%s - port %d Send get_FW_version URB returns: %i",
		__func__, port->number, result);
		dbg("Firmware version: %i.%i.%i",
		transfer_buffer[0], transfer_buffer[1], transfer_buffer[2]);

		if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID \|\|
		priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
		/* Setting Baudrate, Parity and Stopbits */
		result = usb_control_msg(port->serial->dev,
		usb_rcvctrlpipe(port->serial->dev, 0),
		SUSBCRequest_SetBaudRateParityAndStopBits,
		USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_OUT,
		SUSBCR_SBR_9600 \| SUSBCR_SPASB_EvenParity \| SUSBCR_SPASB_1StopBit,
		SUSBCR_SBR_9600 \| SUSBCR_SPASB_EvenParity \|
		SUSBCR_SPASB_1StopBit,
		0,
		transfer_buffer,
		0,
		KOBIL_TIMEOUT
		);
		dbg("%s - port %d Send set_baudrate URB returns: %i", __func__, port->number, result);
		dbg("%s - port %d Send set_baudrate URB returns: %i",
		__func__, port->number, result);

		// reset all queues
		/* reset all queues */
		result = usb_control_msg(port->serial->dev,
		usb_rcvctrlpipe(port->serial->dev, 0),
		SUSBCRequest_Misc,
		@@ -321,13 +335,16 @@ static int kobil_open(struct tty_struct *tty,
		0,
		KOBIL_TIMEOUT
		);
		dbg("%s - port %d Send reset_all_queues URB returns: %i", __func__, port->number, result);
		dbg("%s - port %d Send reset_all_queues URB returns: %i",
		__func__, port->number, result);
		}
		if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\| priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID \|\|
		if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\|
		priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID \|\|
		priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
		// start reading (Adapter B 'cause PNP string)
		/* start reading (Adapter B 'cause PNP string) */
		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
		dbg("%s - port %d Send read URB returns: %i", __func__, port->number, result);
		dbg("%s - port %d Send read URB returns: %i",
		__func__, port->number, result);
		}

		kfree(transfer_buffer);
		@@ -356,7 +373,7 @@ static void kobil_read_int_callback(struct urb *urb)
		struct tty_struct *tty;
		unsigned char *data = urb->transfer_buffer;
		int status = urb->status;
		// char *dbg_data;
		/* char dbg_data; /

		dbg("%s - port %d", __func__, port->number);

		@@ -369,9 +386,10 @@ static void kobil_read_int_callback(struct urb *urb)
		tty = port->port.tty;
		if (urb->actual_length) {

		// BEGIN DEBUG
		/* BEGIN DEBUG */
		/*
		dbg_data = kzalloc((3 * purb->actual_length + 10) * sizeof(char), GFP_KERNEL);
		dbg_data = kzalloc((3 * purb->actual_length + 10)
		* sizeof(char), GFP_KERNEL);
		if (! dbg_data) {
		return;
		}
		@@ -381,18 +399,18 @@ static void kobil_read_int_callback(struct urb *urb)
		dbg(" <-- %s", dbg_data);
		kfree(dbg_data);
		*/
		// END DEBUG
		/* END DEBUG */

		tty_buffer_request_room(tty, urb->actual_length);
		tty_insert_flip_string(tty, data, urb->actual_length);
		tty_flip_buffer_push(tty);
		}

		// someone sets the dev to 0 if the close method has been called
		/* someone sets the dev to 0 if the close method has been called */
		port->interrupt_in_urb->dev = port->serial->dev;

		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
		dbg("%s - port %d Send read URB returns: %i", __func__, port->number, result);
		dbg("%s - port %d Send read URB returns: %i",
		__func__, port->number, result);
		}


		@@ -410,7 +428,8 @@ static int kobil_write (struct tty_struct tty, struct usb_serial_port port,
		struct kobil_private *priv;

		if (count == 0) {
		dbg("%s - port %d write request of 0 bytes", __func__, port->number);
		dbg("%s - port %d write request of 0 bytes",
		__func__, port->number);
		return 0;
		}

		@@ -421,29 +440,33 @@ static int kobil_write (struct tty_struct tty, struct usb_serial_port port,
		return -ENOMEM;
		}

		// Copy data to buffer
		/* Copy data to buffer */
		memcpy(priv->buf + priv->filled, buf, count);
		usb_serial_debug_data(debug, &port->dev, __func__, count, priv->buf + priv->filled);
		usb_serial_debug_data(debug, &port->dev, __func__, count,
		priv->buf + priv->filled);
		priv->filled = priv->filled + count;

		// only send complete block. TWIN, KAAN SIM and adapter K use the same protocol.
		/* only send complete block. TWIN, KAAN SIM and adapter K
		use the same protocol. */
		if (((priv->device_type != KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 2) && (priv->filled >= (priv->buf[1] + 3))) \|\|
		((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) && (priv->filled > 3) && (priv->filled >= (priv->buf[2] + 4)))) {

		// stop reading (except TWIN and KAAN SIM)
		if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) \|\| (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) )
		/* stop reading (except TWIN and KAAN SIM) */
		if ((priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID)
		\|\| (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID))
		usb_kill_urb(port->interrupt_in_urb);

		todo = priv->filled - priv->cur_pos;

		while (todo > 0) {
		// max 8 byte in one urb (endpoint size)
		/* max 8 byte in one urb (endpoint size) */
		length = (todo < 8) ? todo : 8;
		// copy data to transfer buffer
		memcpy(port->write_urb->transfer_buffer, priv->buf + priv->cur_pos, length );
		/* copy data to transfer buffer */
		memcpy(port->write_urb->transfer_buffer,
		priv->buf + priv->cur_pos, length);
		usb_fill_int_urb(port->write_urb,
		port->serial->dev,
		usb_sndintpipe(port->serial->dev, priv->write_int_endpoint_address),
		usb_sndintpipe(port->serial->dev,
		priv->write_int_endpoint_address),
		port->write_urb->transfer_buffer,
		length,
		kobil_write_callback,
		@@ -453,28 +476,32 @@ static int kobil_write (struct tty_struct tty, struct usb_serial_port port,

		priv->cur_pos = priv->cur_pos + length;
		result = usb_submit_urb(port->write_urb, GFP_NOIO);
		dbg("%s - port %d Send write URB returns: %i", __func__, port->number, result);
		dbg("%s - port %d Send write URB returns: %i",
		__func__, port->number, result);
		todo = priv->filled - priv->cur_pos;

		if (todo > 0) {
		if (todo > 0)
		msleep(24);
		}

		} // end while

		priv->filled = 0;
		priv->cur_pos = 0;

		// someone sets the dev to 0 if the close method has been called
		/* someone sets the dev to 0 if the close method
		has been called */
		port->interrupt_in_urb->dev = port->serial->dev;

		// start reading (except TWIN and KAAN SIM)
		if ( (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) \|\| (priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) ) {
		// someone sets the dev to 0 if the close method has been called
		/* start reading (except TWIN and KAAN SIM) */
		if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID \|\|
		priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
		/* someone sets the dev to 0 if the close method has
		been called */
		port->interrupt_in_urb->dev = port->serial->dev;

		result = usb_submit_urb( port->interrupt_in_urb, GFP_NOIO );
		dbg("%s - port %d Send read URB returns: %i", __func__, port->number, result);
		result = usb_submit_urb(port->interrupt_in_urb,
		GFP_NOIO);
		dbg("%s - port %d Send read URB returns: %i",
		__func__, port->number, result);
		}
		}
		return count;
		@@ -483,7 +510,7 @@ static int kobil_write (struct tty_struct tty, struct usb_serial_port port,

		static int kobil_write_room(struct tty_struct *tty)
		{
		//dbg("%s - port %d", __func__, port->number);
		/* dbg("%s - port %d", __func__, port->number); */
		/* FIXME */
		return 8;
		}
		@@ -498,16 +525,16 @@ static int kobil_tiocmget(struct tty_struct tty, struct file file)
		int transfer_buffer_length = 8;

		priv = usb_get_serial_port_data(port);
		if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) \|\| (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
		// This device doesn't support ioctl calls
		if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
		\|\| priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
		/* This device doesn't support ioctl calls */
		return -EINVAL;
		}

		// allocate memory for transfer buffer
		/* allocate memory for transfer buffer */
		transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
		if (!transfer_buffer) {
		if (!transfer_buffer)
		return -ENOMEM;
		}

		result = usb_control_msg(port->serial->dev,
		usb_rcvctrlpipe(port->serial->dev, 0),
		@@ -542,16 +569,16 @@ static int kobil_tiocmset(struct tty_struct tty, struct file file,

		/* FIXME: locking ? */
		priv = usb_get_serial_port_data(port);
		if ((priv->device_type == KOBIL_USBTWIN_PRODUCT_ID) \|\| (priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)) {
		// This device doesn't support ioctl calls
		if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID
		\|\| priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID) {
		/* This device doesn't support ioctl calls */
		return -EINVAL;
		}

		// allocate memory for transfer buffer
		/* allocate memory for transfer buffer */
		transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
		if (! transfer_buffer) {
		if (!transfer_buffer)
		return -ENOMEM;
		}

		if (set & TIOCM_RTS)
		rts = 1;
		@@ -564,9 +591,11 @@ static int kobil_tiocmset(struct tty_struct tty, struct file file,

		if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID) {
		if (dtr != 0)
		dbg("%s - port %d Setting DTR", __func__, port->number);
		dbg("%s - port %d Setting DTR",
		__func__, port->number);
		else
		dbg("%s - port %d Clearing DTR", __func__, port->number);
		dbg("%s - port %d Clearing DTR",
		__func__, port->number);
		result = usb_control_msg(port->serial->dev,
		usb_rcvctrlpipe(port->serial->dev, 0),
		SUSBCRequest_SetStatusLinesOrQueues,
		@@ -578,9 +607,11 @@ static int kobil_tiocmset(struct tty_struct tty, struct file file,
		KOBIL_TIMEOUT);
		} else {
		if (rts != 0)
		dbg("%s - port %d Setting RTS", __func__, port->number);
		dbg("%s - port %d Setting RTS",
		__func__, port->number);
		else
		dbg("%s - port %d Clearing RTS", __func__, port->number);
		dbg("%s - port %d Clearing RTS",
		__func__, port->number);
		result = usb_control_msg(port->serial->dev,
		usb_rcvctrlpipe(port->serial->dev, 0),
		SUSBCRequest_SetStatusLinesOrQueues,
		@@ -591,7 +622,8 @@ static int kobil_tiocmset(struct tty_struct tty, struct file file,
		0,
		KOBIL_TIMEOUT);
		}
		dbg("%s - port %d Send set_status_line URB returns: %i", __func__, port->number, result);
		dbg("%s - port %d Send set_status_line URB returns: %i",
		__func__, port->number, result);
		kfree(transfer_buffer);
		return (result < 0) ? result : 0;
		}
		@@ -607,11 +639,13 @@ static void kobil_set_termios(struct tty_struct *tty,
		void *settings;

		priv = usb_get_serial_port_data(port);
		if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\| priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
		// This device doesn't support ioctl calls
		if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\|
		priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
		/* This device doesn't support ioctl calls */
		return;

		switch (speed = tty_get_baud_rate(tty)) {
		speed = tty_get_baud_rate(tty);
		switch (speed) {
		case 1200:
		urb_val = SUSBCR_SBR_1200;
		break;
		@@ -621,7 +655,8 @@ static void kobil_set_termios(struct tty_struct *tty,
		urb_val = SUSBCR_SBR_9600;
		break;
		}
		urb_val \|= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits : SUSBCR_SPASB_1StopBit;
		urb_val \|= (c_cflag & CSTOPB) ? SUSBCR_SPASB_2StopBits :
		SUSBCR_SPASB_1StopBit;

		settings = kzalloc(50, GFP_KERNEL);
		if (!settings)
		@@ -657,7 +692,8 @@ static void kobil_set_termios(struct tty_struct *tty,
		kfree(settings);
		}

		static int kobil_ioctl(struct tty_struct tty, struct file file, unsigned int cmd, unsigned long arg)
		static int kobil_ioctl(struct tty_struct tty, struct file file,
		unsigned int cmd, unsigned long arg)
		{
		struct usb_serial_port *port = tty->driver_data;
		struct kobil_private *priv = usb_get_serial_port_data(port);
		@@ -665,8 +701,9 @@ static int kobil_ioctl(struct tty_struct tty, struct file file, unsigned int
		int transfer_buffer_length = 8;
		int result;

		if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\| priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
		// This device doesn't support ioctl calls
		if (priv->device_type == KOBIL_USBTWIN_PRODUCT_ID \|\|
		priv->device_type == KOBIL_KAAN_SIM_PRODUCT_ID)
		/* This device doesn't support ioctl calls */
		return 0;

		switch (cmd) {
		@@ -681,7 +718,7 @@ static int kobil_ioctl(struct tty_struct tty, struct file file, unsigned int
		USB_TYPE_VENDOR \| USB_RECIP_ENDPOINT \| USB_DIR_OUT,
		SUSBCR_MSC_ResetAllQueues,
		0,
		NULL,//transfer_buffer,
		NULL, /* transfer_buffer, */
		0,
		KOBIL_TIMEOUT
		);