diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/Makefile | 2 | ||||
| -rw-r--r-- | drivers/usb/misc/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/usb/misc/Makefile | 2 | ||||
| -rw-r--r-- | drivers/usb/misc/cy7c63.c | 244 | ||||
| -rw-r--r-- | drivers/usb/misc/cypress_cy7c63.c | 279 |
5 files changed, 286 insertions, 251 deletions
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index c7123bf71c5..4710eb02ed6 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -48,7 +48,7 @@ obj-$(CONFIG_USB_MICROTEK) += image/ obj-$(CONFIG_USB_SERIAL) += serial/ obj-$(CONFIG_USB_AUERSWALD) += misc/ -obj-$(CONFIG_USB_CY7C63) += misc/ +obj-$(CONFIG_USB_CYPRESS_CY7C63)+= misc/ obj-$(CONFIG_USB_CYTHERM) += misc/ obj-$(CONFIG_USB_EMI26) += misc/ obj-$(CONFIG_USB_EMI62) += misc/ diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index daa486dde8c..88928a4be80 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig @@ -88,19 +88,19 @@ config USB_LED To compile this driver as a module, choose M here: the module will be called usbled. -config USB_CY7C63 +config USB_CYPRESS_CY7C63 tristate "Cypress CY7C63xxx USB driver support" depends on USB help Say Y here if you want to connect a Cypress CY7C63xxx - micro controller to your computer's USB port. This driver - supports the pre-programmed devices (incl. firmware) by - AK Modul-Bus Computer GmbH. + micro controller to your computer's USB port. Currently this + driver supports the pre-programmed devices (incl. firmware) + by AK Modul-Bus Computer GmbH. Please see: http://www.ak-modul-bus.de/stat/mikrocontroller.html To compile this driver as a module, choose M here: the - module will be called cy7c63. + module will be called cypress_cy7c63. config USB_CYTHERM tristate "Cypress USB thermometer driver support" diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index f25a9722729..2927260c581 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile @@ -4,7 +4,7 @@ # obj-$(CONFIG_USB_AUERSWALD) += auerswald.o -obj-$(CONFIG_USB_CY7C63) += cy7c63.o +obj-$(CONFIG_USB_CYPRESS_CY7C63)+= cypress_cy7c63.o obj-$(CONFIG_USB_CYTHERM) += cytherm.o obj-$(CONFIG_USB_EMI26) += emi26.o obj-$(CONFIG_USB_EMI62) += emi62.o diff --git a/drivers/usb/misc/cy7c63.c b/drivers/usb/misc/cy7c63.c deleted file mode 100644 index 8a1c10b89b7..00000000000 --- a/drivers/usb/misc/cy7c63.c +++ /dev/null @@ -1,244 +0,0 @@ -/* -* cy7c63.c -* -* Copyright (c) 2006 Oliver Bock (bock@fh-wolfenbuettel.de) -* -* This driver is based on the Cypress Thermometer USB Driver by -* Marcus Maul and the 2.0 version of Greg Kroah-Hartman's -* USB Skeleton driver. -* -* Is is a generic driver for the Cypress CY7C63000 family. -* For the time being it enables you to toggle the single I/O ports -* of the device. -* -* Supported vendors: AK Modul-Bus Computer GmbH -* Supported devices: CY7C63001A-PC (to be continued...) -* Supported functions: Read/Write Ports (to be continued...) -* -* Chipsets families: CY7C63000, CY7C63001, CY7C63100, CY7C63101 -* -* -* This program is free software; you can redistribute it and/or -* modify it under the terms of the GNU General Public License as -* published by the Free Software Foundation, version 2. -*/ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/usb.h> - -#define DRIVER_AUTHOR "Oliver Bock (bock@fh-wolfenbuettel.de)" -#define DRIVER_DESC "Cypress CY7C63xxx USB driver" - -#define CY7C63_VENDOR_ID 0xa2c -#define CY7C63_PRODUCT_ID 0x8 - -#define CY7C63_READ_PORT 0x4 -#define CY7C63_WRITE_PORT 0x5 -#define CY7C63_READ_RAM 0x2 -#define CY7C63_WRITE_RAM 0x3 -#define CY7C63_READ_ROM 0x1 - -#define CY7C63_READ_PORT_ID0 0 -#define CY7C63_WRITE_PORT_ID0 0 -#define CY7C63_READ_PORT_ID1 0x2 -#define CY7C63_WRITE_PORT_ID1 1 - -#define CY7C63_MAX_REQSIZE 8 - - -/* table of devices that work with this driver */ -static struct usb_device_id cy7c63_table [] = { - { USB_DEVICE(CY7C63_VENDOR_ID, CY7C63_PRODUCT_ID) }, - { } -}; -MODULE_DEVICE_TABLE(usb, cy7c63_table); - -/* structure to hold all of our device specific stuff */ -struct cy7c63 { - struct usb_device * udev; - char port0; - char port1; -}; - -/* used to send usb control messages to device */ -int vendor_command(struct cy7c63 *dev, unsigned char request, - unsigned char address, unsigned char data) { - - int retval = 0; - unsigned int pipe; - unsigned char *iobuf; - - /* allocate some memory for the i/o buffer*/ - iobuf = kzalloc(CY7C63_MAX_REQSIZE, GFP_KERNEL); - if (!iobuf) { - dev_err(&dev->udev->dev, "Out of memory!\n"); - retval = -ENOMEM; - goto error; - } - - dev_dbg(&dev->udev->dev, "Sending usb_control_msg (data: %d)\n", data); - - /* prepare usb control message and send it upstream */ - pipe = usb_rcvctrlpipe(dev->udev, 0); - retval = usb_control_msg(dev->udev, pipe, request, - USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, - address, data, iobuf, CY7C63_MAX_REQSIZE, - USB_CTRL_GET_TIMEOUT); - - /* store returned data (more READs to be added!) */ - switch (request) { - case CY7C63_READ_PORT: - if (address == CY7C63_READ_PORT_ID0) { - dev->port0 = iobuf[1]; - dev_dbg(&dev->udev->dev, - "READ_PORT0 returned: %d\n",dev->port0); - } - else if (address == CY7C63_READ_PORT_ID1) { - dev->port1 = iobuf[1]; - dev_dbg(&dev->udev->dev, - "READ_PORT1 returned: %d\n",dev->port1); - } - break; - } - - kfree(iobuf); -error: - return retval; -} - -#define get_set_port(num,read_id,write_id) \ -static ssize_t set_port##num(struct device *dev, struct device_attribute *attr, \ - const char *buf, size_t count) { \ - \ - int value; \ - int result = 0; \ - \ - struct usb_interface *intf = to_usb_interface(dev); \ - struct cy7c63 *cyp = usb_get_intfdata(intf); \ - \ - dev_dbg(&cyp->udev->dev, "WRITE_PORT%d called\n", num); \ - \ - /* validate input data */ \ - if (sscanf(buf, "%d", &value) < 1) { \ - result = -EINVAL; \ - goto error; \ - } \ - if (value>255 || value<0) { \ - result = -EINVAL; \ - goto error; \ - } \ - \ - result = vendor_command(cyp, CY7C63_WRITE_PORT, write_id, \ - (unsigned char)value); \ - \ - dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n",result); \ -error: \ - return result < 0 ? result : count; \ -} \ - \ -static ssize_t get_port##num(struct device *dev, \ - struct device_attribute *attr, char *buf) { \ - \ - int result = 0; \ - \ - struct usb_interface *intf = to_usb_interface(dev); \ - struct cy7c63 *cyp = usb_get_intfdata(intf); \ - \ - dev_dbg(&cyp->udev->dev, "READ_PORT%d called\n", num); \ - \ - result = vendor_command(cyp, CY7C63_READ_PORT, read_id, 0); \ - \ - dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result); \ - \ - return sprintf(buf, "%d", cyp->port##num); \ -} \ -static DEVICE_ATTR(port##num, S_IWUGO | S_IRUGO, get_port##num, set_port##num); - -get_set_port(0, CY7C63_READ_PORT_ID0, CY7C63_WRITE_PORT_ID0); -get_set_port(1, CY7C63_READ_PORT_ID1, CY7C63_WRITE_PORT_ID1); - -static int cy7c63_probe(struct usb_interface *interface, - const struct usb_device_id *id) { - - struct cy7c63 *dev = NULL; - int retval = -ENOMEM; - - /* allocate memory for our device state and initialize it */ - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (dev == NULL) { - dev_err(&dev->udev->dev, "Out of memory!\n"); - goto error; - } - - dev->udev = usb_get_dev(interface_to_usbdev(interface)); - - /* save our data pointer in this interface device */ - usb_set_intfdata(interface, dev); - - /* create device attribute files */ - device_create_file(&interface->dev, &dev_attr_port0); - device_create_file(&interface->dev, &dev_attr_port1); - - /* let the user know what node this device is now attached to */ - dev_info(&interface->dev, - "Cypress CY7C63xxx device now attached\n"); - - retval = 0; -error: - return retval; -} - -static void cy7c63_disconnect(struct usb_interface *interface) { - - struct cy7c63 *dev; - - dev = usb_get_intfdata(interface); - usb_set_intfdata(interface, NULL); - - /* remove device attribute files */ - device_remove_file(&interface->dev, &dev_attr_port0); - device_remove_file(&interface->dev, &dev_attr_port1); - - usb_put_dev(dev->udev); - - dev_info(&interface->dev, - "Cypress CY7C63xxx device now disconnected\n"); - - kfree(dev); -} - -static struct usb_driver cy7c63_driver = { - .name = "cy7c63", - .probe = cy7c63_probe, - .disconnect = cy7c63_disconnect, - .id_table = cy7c63_table, -}; - -static int __init cy7c63_init(void) { - - int result; - - /* register this driver with the USB subsystem */ - result = usb_register(&cy7c63_driver); - if (result) { - err("Function usb_register failed! Error number: %d\n", result); - } - - return result; -} - -static void __exit cy7c63_exit(void) { - - /* deregister this driver with the USB subsystem */ - usb_deregister(&cy7c63_driver); -} - -module_init(cy7c63_init); -module_exit(cy7c63_exit); - -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); - -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c new file mode 100644 index 00000000000..e091d327bd9 --- /dev/null +++ b/drivers/usb/misc/cypress_cy7c63.c @@ -0,0 +1,279 @@ +/* +* cypress_cy7c63.c +* +* Copyright (c) 2006 Oliver Bock (o.bock@fh-wolfenbuettel.de) +* +* This driver is based on the Cypress USB Driver by Marcus Maul +* (cyport) and the 2.0 version of Greg Kroah-Hartman's +* USB Skeleton driver. +* +* This is a generic driver for the Cypress CY7C63xxx family. +* For the time being it enables you to read from and write to +* the single I/O ports of the device. +* +* Supported vendors: AK Modul-Bus Computer GmbH +* Supported devices: CY7C63001A-PC (to be continued...) +* Supported functions: Read/Write Ports (to be continued...) +* +* +* This program is free software; you can redistribute it and/or +* modify it under the terms of the GNU General Public License as +* published by the Free Software Foundation, version 2. +*/ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/usb.h> + +#define DRIVER_AUTHOR "Oliver Bock (o.bock@fh-wolfenbuettel.de)" +#define DRIVER_DESC "Cypress CY7C63xxx USB driver" + +#define CYPRESS_VENDOR_ID 0xa2c +#define CYPRESS_PRODUCT_ID 0x8 + +#define CYPRESS_READ_PORT 0x4 +#define CYPRESS_WRITE_PORT 0x5 + +#define CYPRESS_READ_RAM 0x2 +#define CYPRESS_WRITE_RAM 0x3 +#define CYPRESS_READ_ROM 0x1 + +#define CYPRESS_READ_PORT_ID0 0 +#define CYPRESS_WRITE_PORT_ID0 0 +#define CYPRESS_READ_PORT_ID1 0x2 +#define CYPRESS_WRITE_PORT_ID1 1 + +#define CYPRESS_MAX_REQSIZE 8 + + +/* table of devices that work with this driver */ +static struct usb_device_id cypress_table [] = { + { USB_DEVICE(CYPRESS_VENDOR_ID, CYPRESS_PRODUCT_ID) }, + { } +}; +MODULE_DEVICE_TABLE(usb, cypress_table); + +/* structure to hold all of our device specific stuff */ +struct cypress { + struct usb_device * udev; + unsigned char port[2]; +}; + +/* used to send usb control messages to device */ +static int vendor_command(struct cypress *dev, unsigned char request, + unsigned char address, unsigned char data) +{ + int retval = 0; + unsigned int pipe; + unsigned char *iobuf; + + /* allocate some memory for the i/o buffer*/ + iobuf = kzalloc(CYPRESS_MAX_REQSIZE, GFP_KERNEL); + if (!iobuf) { + dev_err(&dev->udev->dev, "Out of memory!\n"); + retval = -ENOMEM; + goto error; + } + + dev_dbg(&dev->udev->dev, "Sending usb_control_msg (data: %d)\n", data); + + /* prepare usb control message and send it upstream */ + pipe = usb_rcvctrlpipe(dev->udev, 0); + retval = usb_control_msg(dev->udev, pipe, request, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, + address, data, iobuf, CYPRESS_MAX_REQSIZE, + USB_CTRL_GET_TIMEOUT); + + /* store returned data (more READs to be added) */ + switch (request) { + case CYPRESS_READ_PORT: + if (address == CYPRESS_READ_PORT_ID0) { + dev->port[0] = iobuf[1]; + dev_dbg(&dev->udev->dev, + "READ_PORT0 returned: %d\n", + dev->port[0]); + } + else if (address == CYPRESS_READ_PORT_ID1) { + dev->port[1] = iobuf[1]; + dev_dbg(&dev->udev->dev, + "READ_PORT1 returned: %d\n", + dev->port[1]); + } + break; + } + + kfree(iobuf); +error: + return retval; +} + +/* write port value */ +static ssize_t write_port(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count, + int port_num, int write_id) +{ + int value = -1; + int result = 0; + + struct usb_interface *intf = to_usb_interface(dev); + struct cypress *cyp = usb_get_intfdata(intf); + + dev_dbg(&cyp->udev->dev, "WRITE_PORT%d called\n", port_num); + + /* validate input data */ + if (sscanf(buf, "%d", &value) < 1) { + result = -EINVAL; + goto error; + } + if (value < 0 || value > 255) { + result = -EINVAL; + goto error; + } + + result = vendor_command(cyp, CYPRESS_WRITE_PORT, write_id, + (unsigned char)value); + + dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result); +error: + return result < 0 ? result : count; +} + +/* attribute callback handler (write) */ +static ssize_t set_port0_handler(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + return write_port(dev, attr, buf, count, 0, CYPRESS_WRITE_PORT_ID0); +} + +/* attribute callback handler (write) */ +static ssize_t set_port1_handler(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + return write_port(dev, attr, buf, count, 1, CYPRESS_WRITE_PORT_ID1); +} + +/* read port value */ +static ssize_t read_port(struct device *dev, struct device_attribute *attr, + char *buf, int port_num, int read_id) +{ + int result = 0; + + struct usb_interface *intf = to_usb_interface(dev); + struct cypress *cyp = usb_get_intfdata(intf); + + dev_dbg(&cyp->udev->dev, "READ_PORT%d called\n", port_num); + + result = vendor_command(cyp, CYPRESS_READ_PORT, read_id, 0); + + dev_dbg(&cyp->udev->dev, "Result of vendor_command: %d\n\n", result); + + return sprintf(buf, "%d", cyp->port[port_num]); +} + +/* attribute callback handler (read) */ +static ssize_t get_port0_handler(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return read_port(dev, attr, buf, 0, CYPRESS_READ_PORT_ID0); +} + +/* attribute callback handler (read) */ +static ssize_t get_port1_handler(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return read_port(dev, attr, buf, 1, CYPRESS_READ_PORT_ID1); +} + +static DEVICE_ATTR(port0, S_IWUGO | S_IRUGO, + get_port0_handler, set_port0_handler); + +static DEVICE_ATTR(port1, S_IWUGO | S_IRUGO, + get_port1_handler, set_port1_handler); + + +static int cypress_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct cypress *dev = NULL; + int retval = -ENOMEM; + + /* allocate memory for our device state and initialize it */ + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (dev == NULL) { + dev_err(&dev->udev->dev, "Out of memory!\n"); + goto error; + } + + dev->udev = usb_get_dev(interface_to_usbdev(interface)); + + /* save our data pointer in this interface device */ + usb_set_intfdata(interface, dev); + + /* create device attribute files */ + device_create_file(&interface->dev, &dev_attr_port0); + device_create_file(&interface->dev, &dev_attr_port1); + + /* let the user know that the device is now attached */ + dev_info(&interface->dev, + "Cypress CY7C63xxx device now attached\n"); + + retval = 0; +error: + return retval; +} + +static void cypress_disconnect(struct usb_interface *interface) +{ + struct cypress *dev; + + dev = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + + /* remove device attribute files */ + device_remove_file(&interface->dev, &dev_attr_port0); + device_remove_file(&interface->dev, &dev_attr_port1); + + usb_put_dev(dev->udev); + + dev_info(&interface->dev, + "Cypress CY7C63xxx device now disconnected\n"); + + kfree(dev); +} + +static struct usb_driver cypress_driver = { + .name = "cypress_cy7c63", + .probe = cypress_probe, + .disconnect = cypress_disconnect, + .id_table = cypress_table, +}; + +static int __init cypress_init(void) +{ + int result; + + /* register this driver with the USB subsystem */ + result = usb_register(&cypress_driver); + if (result) { + err("Function usb_register failed! Error number: %d\n", result); + } + + return result; +} + +static void __exit cypress_exit(void) +{ + /* deregister this driver with the USB subsystem */ + usb_deregister(&cypress_driver); +} + +module_init(cypress_init); +module_exit(cypress_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); + +MODULE_LICENSE("GPL"); |