#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/usb.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include <linux/usb/serial.h>
#include "cp210x.h"
/*
* Version Information
*/
-#define DRIVER_VERSION "vxxPKGVERxxtmi"
+#define DRIVER_VERSION "vxxDEBVERxx"
#define DRIVER_DESC "Silicon Labs CP210x RS232 serial adaptor driver"
/*
* Function Prototypes
*/
-static int cp210x_open(struct usb_serial_port*, struct file*);
-static void cp210x_cleanup(struct usb_serial_port*);
-static void cp210x_close(struct usb_serial_port*, struct file*);
-static void cp210x_get_termios(struct usb_serial_port*);
-static void cp210x_set_termios(struct usb_serial_port*, struct ktermios*);
-static int cp210x_tiocmget(struct usb_serial_port *, struct file *);
-static int cp210x_tiocmset(struct usb_serial_port *, struct file *,
+static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *);
+static void cp210x_close(struct usb_serial_port *);
+static void cp210x_get_termios(struct tty_struct *, struct usb_serial_port *);
+static void cp210x_get_termios_port(struct usb_serial_port *port,
+ unsigned int *cflagp, unsigned int *baudp);
+static void cp210x_change_speed(struct tty_struct *, struct usb_serial_port *,
+ struct ktermios *);
+static void cp210x_set_termios(struct tty_struct *, struct usb_serial_port *,
+ struct ktermios*);
+static int cp210x_tiocmget(struct tty_struct *);
+static int cp210x_tiocmset(struct tty_struct *, unsigned int, unsigned int);
+static int cp210x_tiocmset_port(struct usb_serial_port *port,
unsigned int, unsigned int);
-static void cp210x_break_ctl(struct usb_serial_port*, int);
+static void cp210x_break_ctl(struct tty_struct *, int);
static int cp210x_startup(struct usb_serial *);
-static void cp210x_shutdown(struct usb_serial*);
-static int cp210x_ioctl(struct usb_serial_port *, struct file *,
- unsigned int, unsigned long);
-
-static int debug;
+static void cp210x_release(struct usb_serial *);
+static int cp210x_ioctl(struct tty_struct *, unsigned int, unsigned long);
+static void cp210x_dtr_rts(struct usb_serial_port *p, int on);
static const struct usb_device_id id_table[] = {
+ { USB_DEVICE(0x045B, 0x0053) }, /* Renesas RX610 RX-Stick */
{ USB_DEVICE(0x0471, 0x066A) }, /* AKTAKOM ACE-1001 cable */
{ USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
+ { USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */
{ USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */
+ { USB_DEVICE(0x0846, 0x1100) }, /* NetGear Managed Switch M4100 series, M5300 series, M7100 series */
{ USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */
{ USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */
+ { USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */
+ { USB_DEVICE(0x0BED, 0x1101) }, /* MEI series 2000 Combo Acceptor */
{ USB_DEVICE(0x0FCF, 0x1003) }, /* Dynastream ANT development board */
{ USB_DEVICE(0x0FCF, 0x1004) }, /* Dynastream ANT2USB */
{ USB_DEVICE(0x0FCF, 0x1006) }, /* Dynastream ANT development board */
+ { USB_DEVICE(0x0FDE, 0xCA05) }, /* OWL Wireless Electricity Monitor CM-160 */
{ USB_DEVICE(0x10A6, 0xAA26) }, /* Knock-off DCU-11 cable */
{ USB_DEVICE(0x10AB, 0x10C5) }, /* Siemens MC60 Cable */
{ USB_DEVICE(0x10B5, 0xAC70) }, /* Nokia CA-42 USB */
{ USB_DEVICE(0x10C4, 0x1601) }, /* Arkham Technology DS101 Adapter */
{ USB_DEVICE(0x10C4, 0x800A) }, /* SPORTident BSM7-D-USB main station */
{ USB_DEVICE(0x10C4, 0x803B) }, /* Pololu USB-serial converter */
+ { USB_DEVICE(0x10C4, 0x8044) }, /* Cygnal Debug Adapter */
+ { USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */
{ USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
{ USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */
{ USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
+ { USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */
{ USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */
+ { USB_DEVICE(0x10C4, 0x80C4) }, /* Cygnal Integrated Products, Inc., Optris infrared thermometer */
{ USB_DEVICE(0x10C4, 0x80CA) }, /* Degree Controls Inc */
{ USB_DEVICE(0x10C4, 0x80DD) }, /* Tracient RFID */
{ USB_DEVICE(0x10C4, 0x80F6) }, /* Suunto sports instrument */
{ USB_DEVICE(0x10C4, 0x813F) }, /* Tams Master Easy Control */
{ USB_DEVICE(0x10C4, 0x814A) }, /* West Mountain Radio RIGblaster P&P */
{ USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */
+ { USB_DEVICE(0x2405, 0x0003) }, /* West Mountain Radio RIGblaster Advantage */
+ { USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */
{ USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */
+ { USB_DEVICE(0x10C4, 0x815F) }, /* Timewave HamLinkUSB */
+ { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */
{ USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */
{ USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */
+ { USB_DEVICE(0x10C4, 0x81A9) }, /* Multiplex RC Interface */
{ USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
+ { USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
{ USB_DEVICE(0x10C4, 0x81E2) }, /* Lipowsky Industrie Elektronik GmbH, Baby-LIN */
{ USB_DEVICE(0x10C4, 0x81E7) }, /* Aerocomm Radio */
{ USB_DEVICE(0x10C4, 0x81F2) }, /* C1007 HF band RFID controller */
{ USB_DEVICE(0x10C4, 0x8218) }, /* Lipowsky Industrie Elektronik GmbH, HARP-1 */
{ USB_DEVICE(0x10C4, 0x822B) }, /* Modem EDGE(GSM) Comander 2 */
- { USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demostration module */
- { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesys ETRX2USB */
+ { USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */
+ { USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */
+ { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */
{ USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */
{ USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */
{ USB_DEVICE(0x10C4, 0x8382) }, /* Cygnal Integrated Products, Inc. */
{ USB_DEVICE(0x10C4, 0x83A8) }, /* Amber Wireless AMB2560 */
+ { USB_DEVICE(0x10C4, 0x83D8) }, /* DekTec DTA Plus VHF/UHF Booster/Attenuator */
{ USB_DEVICE(0x10C4, 0x8411) }, /* Kyocera GPS Module */
+ { USB_DEVICE(0x10C4, 0x8418) }, /* IRZ Automation Teleport SG-10 GSM/GPRS Modem */
{ USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
+ { USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */
+ { USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */
+ { USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */
+ { USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */
+ { USB_DEVICE(0x10C4, 0x8664) }, /* AC-Services CAN-IF */
+ { USB_DEVICE(0x10C4, 0x8665) }, /* AC-Services OBD-IF */
+ { USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */
+ { USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */
{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
+ { USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
+ { USB_DEVICE(0x10C4, 0xEA80) }, /* Silicon Labs factory default */
+ { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
{ USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
{ USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */
{ USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */
{ USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */
{ USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */
{ USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */
+ { USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal Automation Controller */
+ { USB_DEVICE(0x166A, 0x0301) }, /* Clipsal 5800PC C-Bus Wireless PC Interface */
{ USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */
+ { USB_DEVICE(0x166A, 0x0304) }, /* Clipsal 5000CT2 C-Bus Black and White Touchscreen */
+ { USB_DEVICE(0x166A, 0x0305) }, /* Clipsal C-5000CT2 C-Bus Spectrum Colour Touchscreen */
+ { USB_DEVICE(0x166A, 0x0401) }, /* Clipsal L51xx C-Bus Architectural Dimmer */
+ { USB_DEVICE(0x166A, 0x0101) }, /* Clipsal 5560884 C-Bus Multi-room Audio Matrix Switcher */
{ USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */
+ { USB_DEVICE(0x16DC, 0x0010) }, /* W-IE-NE-R Plein & Baus GmbH PL512 Power Supply */
+ { USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */
+ { USB_DEVICE(0x16DC, 0x0012) }, /* W-IE-NE-R Plein & Baus GmbH MPOD Multi Channel Power Supply */
+ { USB_DEVICE(0x16DC, 0x0015) }, /* W-IE-NE-R Plein & Baus GmbH CML Control, Monitoring and Data Logger */
+ { USB_DEVICE(0x17A8, 0x0001) }, /* Kamstrup Optical Eye/3-wire */
+ { USB_DEVICE(0x17A8, 0x0005) }, /* Kamstrup M-Bus Master MultiPort 250D */
+ { USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */
+ { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
+ { USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */
+ { USB_DEVICE(0x1B1C, 0x1C00) }, /* Corsair USB Dongle */
+ { USB_DEVICE(0x1BE3, 0x07A6) }, /* WAGO 750-923 USB Service Cable */
+ { USB_DEVICE(0x1E29, 0x0102) }, /* Festo CPX-USB */
+ { USB_DEVICE(0x1E29, 0x0501) }, /* Festo CMSP */
+ { USB_DEVICE(0x1FB9, 0x0100) }, /* Lake Shore Model 121 Current Source */
+ { USB_DEVICE(0x1FB9, 0x0200) }, /* Lake Shore Model 218A Temperature Monitor */
+ { USB_DEVICE(0x1FB9, 0x0201) }, /* Lake Shore Model 219 Temperature Monitor */
+ { USB_DEVICE(0x1FB9, 0x0202) }, /* Lake Shore Model 233 Temperature Transmitter */
+ { USB_DEVICE(0x1FB9, 0x0203) }, /* Lake Shore Model 235 Temperature Transmitter */
+ { USB_DEVICE(0x1FB9, 0x0300) }, /* Lake Shore Model 335 Temperature Controller */
+ { USB_DEVICE(0x1FB9, 0x0301) }, /* Lake Shore Model 336 Temperature Controller */
+ { USB_DEVICE(0x1FB9, 0x0302) }, /* Lake Shore Model 350 Temperature Controller */
+ { USB_DEVICE(0x1FB9, 0x0303) }, /* Lake Shore Model 371 AC Bridge */
+ { USB_DEVICE(0x1FB9, 0x0400) }, /* Lake Shore Model 411 Handheld Gaussmeter */
+ { USB_DEVICE(0x1FB9, 0x0401) }, /* Lake Shore Model 425 Gaussmeter */
+ { USB_DEVICE(0x1FB9, 0x0402) }, /* Lake Shore Model 455A Gaussmeter */
+ { USB_DEVICE(0x1FB9, 0x0403) }, /* Lake Shore Model 475A Gaussmeter */
+ { USB_DEVICE(0x1FB9, 0x0404) }, /* Lake Shore Model 465 Three Axis Gaussmeter */
+ { USB_DEVICE(0x1FB9, 0x0600) }, /* Lake Shore Model 625A Superconducting MPS */
+ { USB_DEVICE(0x1FB9, 0x0601) }, /* Lake Shore Model 642A Magnet Power Supply */
+ { USB_DEVICE(0x1FB9, 0x0602) }, /* Lake Shore Model 648 Magnet Power Supply */
+ { USB_DEVICE(0x1FB9, 0x0700) }, /* Lake Shore Model 737 VSM Controller */
+ { USB_DEVICE(0x1FB9, 0x0701) }, /* Lake Shore Model 776 Hall Matrix */
+ { USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */
+ { USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */
+ { USB_DEVICE(0x3195, 0xF281) }, /* Link Instruments MSO-28 */
{ USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */
{ } /* Terminating Entry */
};
MODULE_DEVICE_TABLE(usb, id_table);
-static struct usb_driver cp210x_driver = {
- .name = "cp210x",
- .probe = usb_serial_probe,
- .disconnect = usb_serial_disconnect,
- .id_table = id_table,
- .no_dynamic_id = 1,
+struct cp210x_serial_private {
+ __u8 bInterfaceNumber;
};
static struct usb_serial_driver cp210x_device = {
.driver = {
.owner = THIS_MODULE,
- .name = "cp210x",
+ .name = "cp210x",
},
- .usb_driver = &cp210x_driver,
.id_table = id_table,
- .num_interrupt_in = 0,
- .num_bulk_in = NUM_DONT_CARE,
- .num_bulk_out = NUM_DONT_CARE,
.num_ports = 1,
+ .bulk_in_size = 256,
+ .bulk_out_size = 256,
.open = cp210x_open,
.close = cp210x_close,
.ioctl = cp210x_ioctl,
.break_ctl = cp210x_break_ctl,
.set_termios = cp210x_set_termios,
- .tiocmget = cp210x_tiocmget,
+ .tiocmget = cp210x_tiocmget,
.tiocmset = cp210x_tiocmset,
.attach = cp210x_startup,
- .shutdown = cp210x_shutdown,
+ .release = cp210x_release,
+ .dtr_rts = cp210x_dtr_rts
+};
+
+static struct usb_serial_driver * const serial_drivers[] = {
+ &cp210x_device, NULL
};
/* Config request types */
-#define REQTYPE_HOST_TO_DEVICE 0x41
-#define REQTYPE_DEVICE_TO_HOST 0xc1
-
-/* Config SET requests. To GET, add 1 to the request number */
-#define CP2101_UART 0x00 /* Enable / Disable */
-#define CP2101_BAUDRATE 0x01 /* (BAUD_RATE_GEN_FREQ / baudrate) */
-#define CP2101_BITS 0x03 /* 0x(0)(databits)(parity)(stopbits) */
-#define CP2101_BREAK 0x05 /* On / Off */
-#define CP2101_CONTROL 0x07 /* Flow control line states */
-#define CP2101_MODEMCTL 0x13 /* Modem controls */
-#define CP2101_CONFIG_6 0x19 /* 6 bytes of config data ??? */
-
-/* CP2101_UART */
+#define REQTYPE_HOST_TO_INTERFACE 0x41
+#define REQTYPE_INTERFACE_TO_HOST 0xc1
+#define REQTYPE_HOST_TO_DEVICE 0x40
+#define REQTYPE_DEVICE_TO_HOST 0xc0
+
+/* Config request codes */
+#define CP210X_IFC_ENABLE 0x00
+#define CP210X_SET_BAUDDIV 0x01
+#define CP210X_GET_BAUDDIV 0x02
+#define CP210X_SET_LINE_CTL 0x03
+#define CP210X_GET_LINE_CTL 0x04
+#define CP210X_SET_BREAK 0x05
+#define CP210X_IMM_CHAR 0x06
+#define CP210X_SET_MHS 0x07
+#define CP210X_GET_MDMSTS 0x08
+#define CP210X_SET_XON 0x09
+#define CP210X_SET_XOFF 0x0A
+#define CP210X_SET_EVENTMASK 0x0B
+#define CP210X_GET_EVENTMASK 0x0C
+#define CP210X_SET_CHAR 0x0D
+#define CP210X_GET_CHARS 0x0E
+#define CP210X_GET_PROPS 0x0F
+#define CP210X_GET_COMM_STATUS 0x10
+#define CP210X_RESET 0x11
+#define CP210X_PURGE 0x12
+#define CP210X_SET_FLOW 0x13
+#define CP210X_GET_FLOW 0x14
+#define CP210X_EMBED_EVENTS 0x15
+#define CP210X_GET_EVENTSTATE 0x16
+#define CP210X_SET_CHARS 0x19
+#define CP210X_GET_BAUDRATE 0x1D
+#define CP210X_SET_BAUDRATE 0x1E
+
+/* CP210X_IFC_ENABLE */
#define UART_ENABLE 0x0001
#define UART_DISABLE 0x0000
-/* CP2101_BAUDRATE */
+/* CP210X_(SET|GET)_BAUDDIV */
#define BAUD_RATE_GEN_FREQ 0x384000
-/* CP2101_BITS */
+/* CP210X_(SET|GET)_LINE_CTL */
#define BITS_DATA_MASK 0X0f00
#define BITS_DATA_5 0X0500
#define BITS_DATA_6 0X0600
#define BITS_STOP_1_5 0x0001
#define BITS_STOP_2 0x0002
-/* CP2101_BREAK */
-#define BREAK_ON 0x0000
-#define BREAK_OFF 0x0001
+/* CP210X_SET_BREAK */
+#define BREAK_ON 0x0001
+#define BREAK_OFF 0x0000
-/* CP2101_CONTROL */
+/* CP210X_(SET_MHS|GET_MDMSTS) */
#define CONTROL_DTR 0x0001
#define CONTROL_RTS 0x0002
#define CONTROL_CTS 0x0010
#define CP210x_PART_CP2102 0x02
#define CP210x_PART_CP2103 0x03
+/* Taken from drivers/usb/gadget/usbstring.c */
+static int utf8_to_utf16le(const char *s, __le16 *cp, unsigned len)
+{
+ int count = 0;
+ u8 c;
+ u16 uchar;
+
+ /* this insists on correct encodings, though not minimal ones.
+ * BUT it currently rejects legit 4-byte UTF-8 code points,
+ * which need surrogate pairs. (Unicode 3.1 can use them.)
+ */
+ while (len != 0 && (c = (u8) *s++) != 0) {
+ if (unlikely(c & 0x80)) {
+ // 2-byte sequence:
+ // 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
+ if ((c & 0xe0) == 0xc0) {
+ uchar = (c & 0x1f) << 6;
+
+ c = (u8) *s++;
+ if ((c & 0xc0) != 0x80)
+ goto fail;
+ c &= 0x3f;
+ uchar |= c;
+
+ // 3-byte sequence (most CJKV characters):
+ // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
+ } else if ((c & 0xf0) == 0xe0) {
+ uchar = (c & 0x0f) << 12;
+
+ c = (u8) *s++;
+ if ((c & 0xc0) != 0x80)
+ goto fail;
+ c &= 0x3f;
+ uchar |= c << 6;
+
+ c = (u8) *s++;
+ if ((c & 0xc0) != 0x80)
+ goto fail;
+ c &= 0x3f;
+ uchar |= c;
+
+ /* no bogus surrogates */
+ if (0xd800 <= uchar && uchar <= 0xdfff)
+ goto fail;
+
+ // 4-byte sequence (surrogate pairs, currently rare):
+ // 11101110wwwwzzzzyy + 110111yyyyxxxxxx
+ // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
+ // (uuuuu = wwww + 1)
+ // FIXME accept the surrogate code points (only)
+
+ } else
+ goto fail;
+ } else
+ uchar = c;
+ *cp++ = uchar;
+ count++;
+ len--;
+ }
+ return count;
+fail:
+ return -1;
+}
+
+
/*
- * cp210x_buf_from_user
- * Copy a buffer from user space, returning the number of bytes copied
- * from ubuf.buf into kbuf. klen is the size of the buffer at kbuf.
+ * make_usb_string
+ * Populates usbstr with: (len) + (USB_DT_STRING) + unicode(str). Each char in
+ * usbstr consumes two bytes in unicode (__le16) format.
+ * Returns the resulting length of usbstr in bytes.
+ * This function can accept overlapping usbstr and str as long as the overlap
+ * does not cause data written to usbstr to overwrite data not yet read from
+ * str.
*/
-static size_t cp210x_buf_from_user(char *kbuf, unsigned long ubuf, size_t klen)
+static int make_usb_string(__le16* usbstr, size_t usblen, const char *src,
+ size_t srclen)
{
- struct cp210x_buffer t;
-
- if (!kbuf || !ubuf || !klen ||
- copy_from_user(&t, (struct cp210x_buffer __user *)ubuf,
- sizeof(t)))
- return 0;
- if (t.len < klen)
- klen = t.len;
- if (!t.buf || !t.len ||
- copy_from_user(kbuf, (u8 __user *)t.buf, klen))
- return 0;
- return klen;
+ int len;
+
+ /* string descriptors have length, type, then UTF16-LE text */
+ if (usblen > 254)
+ usblen = 254;
+ len = min(usblen / 2 - 1, srclen);
+ len = utf8_to_utf16le(src, usbstr + 1, len);
+ if (len >= 0) {
+ len = (len + 1) * 2;
+ ((u8 *)usbstr)[0] = len;
+ ((u8 *)usbstr)[1] = USB_DT_STRING;
+ }
+ return len;
}
-/* cp210x_has_setmfg
- * Returns 1 if the CP210X part includes firmware that allows setting the
- * USB MFG descriptor, else 0. As of this writing, no CP210X firmware allows
- * this. SiLabs has suggested this may change in future firmware versions or
- * parts.
+/*
+ * cp210x_usbstr_from_user
+ * Populate kbuf with a usb string derived from a user space variable. klen
+ * is the size of the buffer at kbuf.
+ * Returns the number of bytes used in kbuf.
*/
-static inline int cp210x_has_setmfg(void)
+static size_t cp210x_usbstr_from_user(__le16 *kbuf,
+ struct cp210x_buffer __user *ubuf, size_t klen)
{
- return 0;
+ struct cp210x_buffer t;
+ char *str;
+ size_t slen;
+
+ if (copy_from_user(&t, ubuf, sizeof(t)))
+ return -EINVAL;
+ slen = klen / 2 - 1;
+ if (!t.buf || !t.len || t.len > slen)
+ return -EINVAL;
+ if (t.len < slen)
+ slen = t.len;
+ str = (char *)kbuf + klen - slen;
+ if (copy_from_user(str, (__u8 __user *)t.buf, slen))
+ return -EINVAL;
+ return make_usb_string(kbuf, klen, str, slen);
}
/*
u8 *tbuf;
int ret;
- if (!(tbuf = kmalloc(size, GFP_KERNEL)))
+ tbuf = kmalloc(size, GFP_KERNEL);
+ if (!tbuf)
return -ENOMEM;
- if (requestype & 0x80) {
+ if (requestype & USB_DIR_IN) {
ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
requestype, value, index, tbuf, size, 300);
if (ret > 0 && size)
}
kfree(tbuf);
if (ret < 0 && ret != -EPIPE) {
- dev_printk(KERN_DEBUG, &dev->dev, "cp210x: control failed cmd rqt %u "
- "rq %u len %u ret %d\n", requestype, request, size, ret);
+ dev_dbg(&port->dev,
+ "cp210x: ctl failed cmd rqt %u rq %u len %u ret %d\n",
+ requestype, request, size, ret);
}
return ret;
}
static int cp210x_reset(struct usb_serial_port *port)
{
- dbg("%s", __FUNCTION__);
+ dev_dbg(&port->dev, "%s", __func__);
-#if 1
- /* Is this better than usb_device_reset? It may be. Once a client issues
- * the reset ioctl, it must disconnect and reconnect, since the USB
- * connections are torn down. We also ignore the error return, since
- * the part resets and doesn't send one...
+ /* Instructing the CP210X to reset seems to work more reliably than
+ * calling usb_reset_device().
*/
- cp210x_ctlmsg(port, 0xff, 0x40, 0x0008, 0x00, NULL, 0);
-#else
- usb_reset_device(port->serial->dev);
-#endif
+ cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR,
+ 0x0008, 0x00, NULL, 0);
return 0;
}
_partnum = CP210x_PART_CP2101;
else if (addr == 0x01) {
/* Must query part to determine part number */
- if (cp210x_ctlmsg(port, 0xff, 0xc0, 0x370b, 0x00,
- &_partnum, 1) != 1)
+ if (cp210x_ctlmsg(port, 0xff,
+ USB_DIR_IN|USB_TYPE_VENDOR,
+ 0x370b, 0x00, &_partnum, 1) != 1)
_partnum = CP210x_PART_UNKNOWN;
}
}
- dbg("%s - partnum %u", __FUNCTION__, _partnum);
+ dev_dbg(&port->dev, "%s - partnum %u", __func__, _partnum);
return _partnum;
}
static inline int cp210x_setu16(struct usb_serial_port *port, int cmd,
unsigned int value)
{
- return cp210x_ctlmsg(port, 0xff, 0x40, 0x3700 | (cmd & 0xff),
- value, NULL, 0);
-}
-
-/* Populates usbstr with: (len) + (0x03) + unicode(str). Each char in str
- * takes up two bytes in unicode format, so the resulting len(usbstr) is
- * 2 * len(str) + 2.
- * Returns the resulting length of the string in usbstr.
- * This function can accept overlapping usbstr and str as long as the overlap
- * does not cause data written to usbstr to overwrite data not yet read from
- * str.
- */
-static int make_usb_string(char *usbstr, size_t usblen, char *src,
- size_t srclen)
-{
- int len = 0;
-
- if (usbstr && usblen >= 2 && src && *src && srclen) {
- char *p;
-
- if (usblen > 255)
- usblen = 255;
-
- p = usbstr + 1;
- *p++ = 0x03;
- len = 2;
- while (srclen && len < usblen) {
- *p++ = *src++;
- *p++ = 0;
- len += 2;
- srclen--;
- }
- *usbstr = (char)len;
- }
- return len;
+ return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR,
+ 0x3700 | (cmd & 0xff), value, NULL, 0);
}
/*
* Set a USB string descriptor using proprietary cp210x control messages.
* Return the number of characters actually written.
*/
-static int cp210x_setstr(struct usb_serial_port *port, int cmd, char *usbstr)
+static int cp210x_setstr(struct usb_serial_port *port, int cmd, __le16 *usbstr)
{
- unsigned len = usbstr[0];
- int ret = cp210x_ctlmsg(port, 0xff, 0x40, 0x3700 | (cmd & 0xff), 0,
- usbstr, len);
- dbg("%s - cmd 0x%02x len %d ret %d", __FUNCTION__, cmd, len, ret);
+ int len = ((u8 *)usbstr)[0];
+ int ret = cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR,
+ 0x3700 | (cmd & 0xff), 0, usbstr, len);
+ dev_dbg(&port->dev, "%s - cmd 0x%02x len %d ret %d", __func__, cmd,
+ len, ret);
return ret;
}
/* Set all gpio simultaneously */
static int cp210x_gpioset(struct usb_serial_port *port, u8 gpio)
{
- dbg("%s - port %d, gpio = 0x%.2x", __FUNCTION__, port->number, gpio);
+ dev_dbg(&port->dev, "%s - port %d, gpio = 0x%.2x", __func__,
+ port->port_number, gpio);
- return cp210x_ctlmsg(port, 0xff, 0x40, 0x37e1,
- ((uint16_t)gpio << 8) | GPIO_MASK, NULL, 0);
+ return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR,
+ 0x37e1, ((uint16_t)gpio << 8) | GPIO_MASK, NULL, 0);
}
/* Set select gpio bits */
if (clear & GPIO_3)
gpio = (gpio & ~(GPIO_3 << 8))|GPIO_3;
- dbg("%s - port %d, gpiob = 0x%.4x", __FUNCTION__, port->number, gpio);
+ dev_dbg(&port->dev, "%s - port %d, gpiob = 0x%.4x", __func__,
+ port->port_number, gpio);
- /* FIXME: how about REQTYPE_HOST_TO_DEVICE instead of 0x40? */
- return cp210x_ctlmsg(port, 0xff, 0x40, 0x37e1, gpio, NULL, 0);
+ return cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR,
+ 0x37e1, gpio, NULL, 0);
}
static int cp210x_gpioget(struct usb_serial_port *port, u8 *gpio)
{
int ret;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ dev_dbg(&port->dev, "%s - port %d", __func__, port->port_number);
- /* FIXME: how about REQTYPE_DEVICE_TO_HOST instead of 0xc0? */
- ret = cp210x_ctlmsg(port, 0xff, 0xc0, 0x00c2, 0, gpio, 1);
+ ret = cp210x_ctlmsg(port, 0xff, USB_DIR_IN|USB_TYPE_VENDOR,
+ 0x00c2, 0, gpio, 1);
- dbg("%s - gpio = 0x%.2x (%d)", __FUNCTION__, *gpio, ret);
+ dev_dbg(&port->dev, "%s - gpio = 0x%.2x (%d)", __func__, *gpio, ret);
return (ret == 1) ? 0 : -1;
}
struct cp210x_port_config lconfig;
int ret;
- dbg("%s", __FUNCTION__);
+ dev_dbg(&port->dev, "%s", __func__);
memcpy(&lconfig, config, sizeof(lconfig));
- /* Words from cp2103 are MSB */
+ /* Words from cp210x are MSB */
lconfig.reset.mode = cpu_to_be16(config->reset.mode);
lconfig.reset.latch = cpu_to_be16(config->reset.latch);
lconfig.suspend.mode = cpu_to_be16(config->suspend.mode);
lconfig.suspend.latch = cpu_to_be16(config->suspend.latch);
-#if 0 /* apparently not implemented by CP210X firmware */
- lconfig.reset.lowPower = cpu_to_be16(config->reset.lowPower);
- lconfig.suspend.lowPower = cpu_to_be16(config->suspend.lowPower);
-#else
+ /* apparently not implemented by CP210X firmware */
lconfig.suspend.lowPower = 0;
lconfig.reset.lowPower = 0;
-#endif
- ret = cp210x_ctlmsg(port, 0xff, 0x40, 0x370c, 0, &lconfig,
- sizeof(struct cp210x_port_config));
+ ret = cp210x_ctlmsg(port, 0xff, USB_TYPE_VENDOR, 0x370c,
+ 0, &lconfig, sizeof(struct cp210x_port_config));
if (ret == sizeof(struct cp210x_port_config))
return 0;
else if (ret >= 0)
{
int ret;
- dbg("%s", __FUNCTION__);
+ dev_dbg(&port->dev, "%s", __func__);
- ret = cp210x_ctlmsg(port, 0xff, 0xc0, 0x370c, 0, config,
- sizeof(struct cp210x_port_config));
+ ret = cp210x_ctlmsg(port, 0xff, USB_DIR_IN|USB_TYPE_VENDOR,
+ 0x370c, 0, config, sizeof(struct cp210x_port_config));
if (ret == sizeof(struct cp210x_port_config)) {
- /* Words from cp2103 are MSB */
+ /* Words from cp210x are MSB */
config->reset.mode = be16_to_cpu(config->reset.mode);
config->reset.lowPower = be16_to_cpu(config->reset.lowPower);
config->reset.latch = be16_to_cpu(config->reset.latch);
unsigned int *data, int size)
{
struct usb_serial *serial = port->serial;
+ struct cp210x_serial_private *spriv = usb_get_serial_data(serial);
__le32 *buf;
int result, i, length;
/* Number of integers required to contain the array */
- length = (((size - 1) | 3) + 1)/4;
+ length = (((size - 1) | 3) + 1) / 4;
buf = kcalloc(length, sizeof(__le32), GFP_KERNEL);
if (!buf) {
- dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__);
+ dev_err(&port->dev, "%s - out of memory.\n", __func__);
return -ENOMEM;
}
- /* For get requests, the request number must be incremented */
- request++;
-
/* Issue the request, attempting to read 'size' bytes */
result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
- request, REQTYPE_DEVICE_TO_HOST, 0x0000,
- 0, buf, size, 300);
+ request, REQTYPE_INTERFACE_TO_HOST, 0x0000,
+ spriv->bInterfaceNumber, buf, size,
+ USB_CTRL_GET_TIMEOUT);
/* Convert data into an array of integers */
for (i = 0; i < length; i++)
kfree(buf);
if (result != size) {
- dev_err(&port->dev, "%s - Unable to send config request, "
- "request=0x%x size=%d result=%d\n",
- __FUNCTION__, request, size, result);
- return -EPROTO;
+ dev_dbg(&port->dev, "%s - Unable to send config request, request=0x%x size=%d result=%d\n",
+ __func__, request, size, result);
+ if (result > 0)
+ result = -EPROTO;
+
+ return result;
}
return 0;
unsigned int *data, int size)
{
struct usb_serial *serial = port->serial;
+ struct cp210x_serial_private *spriv = usb_get_serial_data(serial);
__le32 *buf;
int result, i, length;
/* Number of integers required to contain the array */
- length = (((size - 1) | 3) + 1)/4;
+ length = (((size - 1) | 3) + 1) / 4;
buf = kmalloc(length * sizeof(__le32), GFP_KERNEL);
if (!buf) {
- dev_err(&port->dev, "%s - out of memory.\n",
- __FUNCTION__);
+ dev_err(&port->dev, "%s - out of memory.\n", __func__);
return -ENOMEM;
}
if (size > 2) {
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0),
- request, REQTYPE_HOST_TO_DEVICE, 0x0000,
- 0, buf, size, 300);
+ request, REQTYPE_HOST_TO_INTERFACE, 0x0000,
+ spriv->bInterfaceNumber, buf, size,
+ USB_CTRL_SET_TIMEOUT);
} else {
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0),
- request, REQTYPE_HOST_TO_DEVICE, data[0],
- 0, NULL, 0, 300);
+ request, REQTYPE_HOST_TO_INTERFACE, data[0],
+ spriv->bInterfaceNumber, NULL, 0,
+ USB_CTRL_SET_TIMEOUT);
}
kfree(buf);
if ((size > 2 && result != size) || result < 0) {
- dev_err(&port->dev, "%s - Unable to send request, "
- "request=0x%x size=%d result=%d\n",
- __FUNCTION__, request, size, result);
- return -EPROTO;
+ dev_dbg(&port->dev, "%s - Unable to send request, request=0x%x size=%d result=%d\n",
+ __func__, request, size, result);
+ if (result > 0)
+ result = -EPROTO;
+
+ return result;
}
return 0;
return cp210x_set_config(port, request, &data, 2);
}
-static int cp210x_open(struct usb_serial_port *port, struct file *filp)
+/*
+ * cp210x_quantise_baudrate
+ * Quantises the baud rate as per AN205 Table 1
+ */
+static unsigned int cp210x_quantise_baudrate(unsigned int baud)
{
- struct usb_serial *serial = port->serial;
- int result;
-
- dbg("%s - port %d", __FUNCTION__, port->number);
+ if (baud <= 300)
+ baud = 300;
+ else if (baud <= 600) baud = 600;
+ else if (baud <= 1200) baud = 1200;
+ else if (baud <= 1800) baud = 1800;
+ else if (baud <= 2400) baud = 2400;
+ else if (baud <= 4000) baud = 4000;
+ else if (baud <= 4803) baud = 4800;
+ else if (baud <= 7207) baud = 7200;
+ else if (baud <= 9612) baud = 9600;
+ else if (baud <= 14428) baud = 14400;
+ else if (baud <= 16062) baud = 16000;
+ else if (baud <= 19250) baud = 19200;
+ else if (baud <= 28912) baud = 28800;
+ else if (baud <= 38601) baud = 38400;
+ else if (baud <= 51558) baud = 51200;
+ else if (baud <= 56280) baud = 56000;
+ else if (baud <= 58053) baud = 57600;
+ else if (baud <= 64111) baud = 64000;
+ else if (baud <= 77608) baud = 76800;
+ else if (baud <= 117028) baud = 115200;
+ else if (baud <= 129347) baud = 128000;
+ else if (baud <= 156868) baud = 153600;
+ else if (baud <= 237832) baud = 230400;
+ else if (baud <= 254234) baud = 250000;
+ else if (baud <= 273066) baud = 256000;
+ else if (baud <= 491520) baud = 460800;
+ else if (baud <= 567138) baud = 500000;
+ else if (baud <= 670254) baud = 576000;
+ else if (baud < 1000000)
+ baud = 921600;
+ else if (baud > 2000000)
+ baud = 2000000;
+ return baud;
+}
- if (cp210x_set_config_single(port, CP2101_UART, UART_ENABLE)) {
- dev_err(&port->dev, "%s - Unable to enable UART\n",
- __FUNCTION__);
- return -EPROTO;
- }
+static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port)
+{
+ int result;
- /* Start reading from the device */
- usb_fill_bulk_urb(port->read_urb, serial->dev,
- usb_rcvbulkpipe(serial->dev,
- port->bulk_in_endpointAddress),
- port->read_urb->transfer_buffer,
- port->read_urb->transfer_buffer_length,
- serial->type->read_bulk_callback,
- port);
- result = usb_submit_urb(port->read_urb, GFP_KERNEL);
+ result = cp210x_set_config_single(port, CP210X_IFC_ENABLE,
+ UART_ENABLE);
if (result) {
- dev_err(&port->dev, "%s - failed resubmitting read urb, "
- "error %d\n", __FUNCTION__, result);
+ dev_err(&port->dev, "%s - Unable to enable UART\n", __func__);
return result;
}
/* Configure the termios structure */
- cp210x_get_termios(port);
+ cp210x_get_termios(tty, port);
- /* Set the DTR and RTS pins low */
- cp210x_tiocmset(port, NULL, TIOCM_DTR | TIOCM_RTS, 0);
+ /* The baud rate must be initialised on cp2104 */
+ if (tty)
+ cp210x_change_speed(tty, port, NULL);
- return 0;
+ return usb_serial_generic_open(tty, port);
}
-static void cp210x_cleanup(struct usb_serial_port *port)
+static void cp210x_close(struct usb_serial_port *port)
{
- struct usb_serial *serial = port->serial;
-
- dbg("%s - port %d", __FUNCTION__, port->number);
-
- if (serial->dev) {
- /* shutdown any bulk reads that might be going on */
- if (serial->num_bulk_out)
- usb_kill_urb(port->write_urb);
- if (serial->num_bulk_in)
- usb_kill_urb(port->read_urb);
- }
+ usb_serial_generic_close(port);
+ cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_DISABLE);
}
-static void cp210x_close(struct usb_serial_port *port, struct file *filp)
+static int cp210x_ioctl(struct tty_struct *tty, unsigned int cmd,
+ unsigned long arg)
{
- dbg("%s - port %d", __FUNCTION__, port->number);
+ struct usb_serial_port *port = tty->driver_data;
- /* shutdown our urbs */
- dbg("%s - shutting down urbs", __FUNCTION__);
- usb_kill_urb(port->write_urb);
- usb_kill_urb(port->read_urb);
-
- cp210x_set_config_single(port, CP2101_UART, UART_DISABLE);
-}
-
-static int cp210x_ioctl(struct usb_serial_port *port, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
+ dev_dbg(&port->dev, "%s (%d) cmd = 0x%04x", __func__,
+ port->port_number, cmd);
switch (cmd) {
case TIOCMGET:
{
- int result = cp210x_tiocmget(port, file);
+ int result = cp210x_tiocmget(tty);
if (copy_to_user((int __user *)&arg, &result, sizeof(int)))
return -EFAULT;
return 0;
return -EFAULT;
/* this looks wrong: TIOCMSET isn't going to work right */
- if (cp210x_tiocmset(port, file, cmd==TIOCMBIC ? 0 : val,
- cmd==TIOCMBIC ? val : 0))
+ if (cp210x_tiocmset(tty, (cmd == TIOCMBIC) ? 0 : val,
+ (cmd == TIOCMBIC) ? val : 0))
return -EFAULT;
return 0;
}
break;
- case IOCTL_GPIOGET:
+ case CP210x_IOCTL_GPIOGET:
if (cp210x_get_partnum(port) == CP210x_PART_CP2103) {
u8 gpio = 0;
if (!cp210x_gpioget(port, &gpio) && !copy_to_user(
- (u8 __user *)arg, &gpio, sizeof(gpio)))
+ (__u8 __user *)arg, &gpio,
+ sizeof(gpio)))
return 0;
}
return -EFAULT;
break;
- case IOCTL_GPIOSET:
+ case CP210x_IOCTL_GPIOSET:
if (cp210x_get_partnum(port) == CP210x_PART_CP2103 &&
!cp210x_gpioset(port, arg))
return 0;
return -EFAULT;
break;
- case IOCTL_GPIOBIC:
- case IOCTL_GPIOBIS:
+ case CP210x_IOCTL_GPIOBIC:
+ case CP210x_IOCTL_GPIOBIS:
if (cp210x_get_partnum(port) == CP210x_PART_CP2103 &&
- !cp210x_gpiosetb(port, (cmd==IOCTL_GPIOBIC) ? 0 : arg,
- (cmd==IOCTL_GPIOBIC) ? arg : 0))
+ !cp210x_gpiosetb(port,
+ (cmd == CP210x_IOCTL_GPIOBIC) ? 0 : arg,
+ (cmd == CP210x_IOCTL_GPIOBIC) ? arg : 0))
return 0;
return -EFAULT;
break;
- case IOCTL_DEVICERESET:
+ case CP210x_IOCTL_DEVICERESET:
return cp210x_reset(port);
break;
- case IOCTL_PORTCONFGET:
+ case CP210x_IOCTL_PORTCONFGET:
{
struct cp210x_port_config config;
if (!cp210x_portconfget(port, &config) && !copy_to_user(
return -EFAULT;
break;
- case IOCTL_PORTCONFSET:
+ case CP210x_IOCTL_PORTCONFSET:
{
struct cp210x_port_config config;
if (!copy_from_user(&config, (struct cp210x_port_config __user *)arg,
}
break;
- case IOCTL_SETVID:
+ case CP210x_IOCTL_SETVID:
{
unsigned int vid;
if (!copy_from_user(&vid, (unsigned int __user *)arg,
}
break;
- case IOCTL_SETPID:
+ case CP210x_IOCTL_SETPID:
{
unsigned int pid;
if (!copy_from_user(&pid, (unsigned int __user *)arg,
}
break;
- case IOCTL_SETMFG:
- if (cp210x_has_setmfg()) {
- char usbstr[CP210x_MAX_MFG_STRLEN * 2 + 2];
- char *str = usbstr + sizeof(usbstr) - CP210x_MAX_MFG_STRLEN;
- size_t len = cp210x_buf_from_user(str, arg,
- CP210x_MAX_MFG_STRLEN);
- len = make_usb_string(usbstr, sizeof(usbstr), str, len);
- if (len && cp210x_setstr(port, 0x00, usbstr) == len)
- return 0;
- }
- return -EFAULT;
- break;
-
- case IOCTL_SETPRODUCT:
+ case CP210x_IOCTL_SETPRODUCT:
{
- char usbstr[CP210x_MAX_PRODUCT_STRLEN * 2 + 2];
- char *str = usbstr + sizeof(usbstr) - CP210x_MAX_PRODUCT_STRLEN;
- size_t len = cp210x_buf_from_user(str, arg,
- CP210x_MAX_PRODUCT_STRLEN);
- len = make_usb_string(usbstr, sizeof(usbstr), str, len);
- if (len && cp210x_setstr(port, 0x03, usbstr) == len)
+ __le16 usbstr[CP210x_MAX_PRODUCT_STRLEN + 1];
+ size_t len = cp210x_usbstr_from_user(usbstr,
+ (struct cp210x_buffer __user *)arg,
+ sizeof(usbstr));
+ if (len > 0 && cp210x_setstr(port, 0x03, usbstr) == len)
return 0;
return -EFAULT;
}
break;
- case IOCTL_SETSERIAL:
+ case CP210x_IOCTL_SETSERIAL:
{
- char usbstr[CP210x_MAX_SERIAL_STRLEN * 2 + 2];
- char *str = usbstr + sizeof(usbstr) - CP210x_MAX_SERIAL_STRLEN;
- size_t len = cp210x_buf_from_user(str, arg,
- CP210x_MAX_SERIAL_STRLEN);
- len = make_usb_string(usbstr, sizeof(usbstr), str, len);
- if (len && cp210x_setstr(port, 0x04, usbstr) == len)
+ __le16 usbstr[CP210x_MAX_SERIAL_STRLEN + 1];
+ size_t len = cp210x_usbstr_from_user(usbstr,
+ (struct cp210x_buffer __user *)arg,
+ sizeof(usbstr));
+ if (len > 0 && cp210x_setstr(port, 0x04, usbstr) == len)
return 0;
return -EFAULT;
}
break;
- case IOCTL_SETDEVVER:
+ case CP210x_IOCTL_SETDEVVER:
{
unsigned int ver;
if (!copy_from_user(&ver, (unsigned int __user *)arg,
break;
default:
- dbg("%s not supported = 0x%04x", __FUNCTION__, cmd);
+ dev_dbg(&port->dev, "%s not supported = 0x%04x", __func__, cmd);
break;
}
* from the device, corrects any unsupported values, and configures the
* termios structure to reflect the state of the device
*/
-static void cp210x_get_termios(struct usb_serial_port *port)
+static void cp210x_get_termios(struct tty_struct *tty,
+ struct usb_serial_port *port)
{
- unsigned int cflag, modem_ctl[4];
- int baud;
- int bits;
-
- dbg("%s - port %d", __FUNCTION__, port->number);
+ unsigned int baud;
- if (!port->tty || !port->tty->termios) {
- dbg("%s - no tty structures", __FUNCTION__);
- return;
+ if (tty) {
+ cp210x_get_termios_port(tty->driver_data,
+ &tty->termios.c_cflag, &baud);
+ tty_encode_baud_rate(tty, baud, baud);
+ } else {
+ unsigned int cflag;
+ cflag = 0;
+ cp210x_get_termios_port(port, &cflag, &baud);
}
+}
- cp210x_get_config(port, CP2101_BAUDRATE, &baud, 2);
- /* Convert to baudrate */
- if (baud)
- baud = BAUD_RATE_GEN_FREQ / baud;
+/*
+ * cp210x_get_termios_port
+ * This is the heart of cp210x_get_termios which always uses a &usb_serial_port.
+ */
+static void cp210x_get_termios_port(struct usb_serial_port *port,
+ unsigned int *cflagp, unsigned int *baudp)
+{
+ struct device *dev = &port->dev;
+ unsigned int cflag, modem_ctl[4];
+ unsigned int baud;
+ unsigned int bits;
- dbg("%s - baud rate = %d", __FUNCTION__, baud);
+ cp210x_get_config(port, CP210X_GET_BAUDRATE, &baud, 4);
- tty_encode_baud_rate(port->tty, baud, baud);
- cflag = port->tty->termios->c_cflag;
+ dev_dbg(dev, "%s - baud rate = %d\n", __func__, baud);
+ *baudp = baud;
- cp210x_get_config(port, CP2101_BITS, &bits, 2);
+ cflag = *cflagp;
+
+ cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
cflag &= ~CSIZE;
- switch(bits & BITS_DATA_MASK) {
- case BITS_DATA_5:
- dbg("%s - data bits = 5", __FUNCTION__);
- cflag |= CS5;
- break;
- case BITS_DATA_6:
- dbg("%s - data bits = 6", __FUNCTION__);
- cflag |= CS6;
- break;
- case BITS_DATA_7:
- dbg("%s - data bits = 7", __FUNCTION__);
- cflag |= CS7;
- break;
- case BITS_DATA_8:
- dbg("%s - data bits = 8", __FUNCTION__);
- cflag |= CS8;
- break;
- case BITS_DATA_9:
- dbg("%s - data bits = 9 (not supported, "
- "using 8 data bits)", __FUNCTION__);
- cflag |= CS8;
- bits &= ~BITS_DATA_MASK;
- bits |= BITS_DATA_8;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
- default:
- dbg("%s - Unknown number of data bits, "
- "using 8", __FUNCTION__);
- cflag |= CS8;
- bits &= ~BITS_DATA_MASK;
- bits |= BITS_DATA_8;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
+ switch (bits & BITS_DATA_MASK) {
+ case BITS_DATA_5:
+ dev_dbg(dev, "%s - data bits = 5\n", __func__);
+ cflag |= CS5;
+ break;
+ case BITS_DATA_6:
+ dev_dbg(dev, "%s - data bits = 6\n", __func__);
+ cflag |= CS6;
+ break;
+ case BITS_DATA_7:
+ dev_dbg(dev, "%s - data bits = 7\n", __func__);
+ cflag |= CS7;
+ break;
+ case BITS_DATA_8:
+ dev_dbg(dev, "%s - data bits = 8\n", __func__);
+ cflag |= CS8;
+ break;
+ case BITS_DATA_9:
+ dev_dbg(dev, "%s - data bits = 9 (not supported, using 8 data bits)\n", __func__);
+ cflag |= CS8;
+ bits &= ~BITS_DATA_MASK;
+ bits |= BITS_DATA_8;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
+ default:
+ dev_dbg(dev, "%s - Unknown number of data bits, using 8\n", __func__);
+ cflag |= CS8;
+ bits &= ~BITS_DATA_MASK;
+ bits |= BITS_DATA_8;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
}
- switch(bits & BITS_PARITY_MASK) {
- case BITS_PARITY_NONE:
- dbg("%s - parity = NONE", __FUNCTION__);
- cflag &= ~PARENB;
- break;
- case BITS_PARITY_ODD:
- dbg("%s - parity = ODD", __FUNCTION__);
- cflag |= (PARENB|PARODD);
- break;
- case BITS_PARITY_EVEN:
- dbg("%s - parity = EVEN", __FUNCTION__);
- cflag &= ~PARODD;
- cflag |= PARENB;
- break;
- case BITS_PARITY_MARK:
- dbg("%s - parity = MARK (not supported, "
- "disabling parity)", __FUNCTION__);
- cflag &= ~PARENB;
- bits &= ~BITS_PARITY_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
- case BITS_PARITY_SPACE:
- dbg("%s - parity = SPACE (not supported, "
- "disabling parity)", __FUNCTION__);
- cflag &= ~PARENB;
- bits &= ~BITS_PARITY_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
- default:
- dbg("%s - Unknown parity mode, "
- "disabling parity", __FUNCTION__);
- cflag &= ~PARENB;
- bits &= ~BITS_PARITY_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
+ switch (bits & BITS_PARITY_MASK) {
+ case BITS_PARITY_NONE:
+ dev_dbg(dev, "%s - parity = NONE\n", __func__);
+ cflag &= ~PARENB;
+ break;
+ case BITS_PARITY_ODD:
+ dev_dbg(dev, "%s - parity = ODD\n", __func__);
+ cflag |= (PARENB|PARODD);
+ break;
+ case BITS_PARITY_EVEN:
+ dev_dbg(dev, "%s - parity = EVEN\n", __func__);
+ cflag &= ~PARODD;
+ cflag |= PARENB;
+ break;
+ case BITS_PARITY_MARK:
+ dev_dbg(dev, "%s - parity = MARK\n", __func__);
+ cflag |= (PARENB|PARODD|CMSPAR);
+ break;
+ case BITS_PARITY_SPACE:
+ dev_dbg(dev, "%s - parity = SPACE\n", __func__);
+ cflag &= ~PARODD;
+ cflag |= (PARENB|CMSPAR);
+ break;
+ default:
+ dev_dbg(dev, "%s - Unknown parity mode, disabling parity\n", __func__);
+ cflag &= ~PARENB;
+ bits &= ~BITS_PARITY_MASK;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
}
cflag &= ~CSTOPB;
- switch(bits & BITS_STOP_MASK) {
- case BITS_STOP_1:
- dbg("%s - stop bits = 1", __FUNCTION__);
- break;
- case BITS_STOP_1_5:
- dbg("%s - stop bits = 1.5 (not supported, "
- "using 1 stop bit)", __FUNCTION__);
- bits &= ~BITS_STOP_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
- case BITS_STOP_2:
- dbg("%s - stop bits = 2", __FUNCTION__);
- cflag |= CSTOPB;
- break;
- default:
- dbg("%s - Unknown number of stop bits, "
- "using 1 stop bit", __FUNCTION__);
- bits &= ~BITS_STOP_MASK;
- cp210x_set_config(port, CP2101_BITS, &bits, 2);
- break;
+ switch (bits & BITS_STOP_MASK) {
+ case BITS_STOP_1:
+ dev_dbg(dev, "%s - stop bits = 1\n", __func__);
+ break;
+ case BITS_STOP_1_5:
+ dev_dbg(dev, "%s - stop bits = 1.5 (not supported, using 1 stop bit)\n", __func__);
+ bits &= ~BITS_STOP_MASK;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
+ case BITS_STOP_2:
+ dev_dbg(dev, "%s - stop bits = 2\n", __func__);
+ cflag |= CSTOPB;
+ break;
+ default:
+ dev_dbg(dev, "%s - Unknown number of stop bits, using 1 stop bit\n", __func__);
+ bits &= ~BITS_STOP_MASK;
+ cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+ break;
}
- cp210x_get_config(port, CP2101_MODEMCTL, modem_ctl, 16);
+ cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
if (modem_ctl[0] & 0x0008) {
- dbg("%s - flow control = CRTSCTS", __FUNCTION__);
+ dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
cflag |= CRTSCTS;
} else {
- dbg("%s - flow control = NONE", __FUNCTION__);
+ dev_dbg(dev, "%s - flow control = NONE\n", __func__);
cflag &= ~CRTSCTS;
}
- port->tty->termios->c_cflag = cflag;
+ *cflagp = cflag;
}
-static void cp210x_set_termios(struct usb_serial_port *port,
- struct ktermios *old_termios)
+/*
+ * CP2101 supports the following baud rates:
+ *
+ * 300, 600, 1200, 1800, 2400, 4800, 7200, 9600, 14400, 19200, 28800,
+ * 38400, 56000, 57600, 115200, 128000, 230400, 460800, 921600
+ *
+ * CP2102 and CP2103 support the following additional rates:
+ *
+ * 4000, 16000, 51200, 64000, 76800, 153600, 250000, 256000, 500000,
+ * 576000
+ *
+ * The device will map a requested rate to a supported one, but the result
+ * of requests for rates greater than 1053257 is undefined (see AN205).
+ *
+ * CP2104, CP2105 and CP2110 support most rates up to 2M, 921k and 1M baud,
+ * respectively, with an error less than 1%. The actual rates are determined
+ * by
+ *
+ * div = round(freq / (2 x prescale x request))
+ * actual = freq / (2 x prescale x div)
+ *
+ * For CP2104 and CP2105 freq is 48Mhz and prescale is 4 for request <= 365bps
+ * or 1 otherwise.
+ * For CP2110 freq is 24Mhz and prescale is 4 for request <= 300bps or 1
+ * otherwise.
+ */
+static void cp210x_change_speed(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
{
- unsigned int cflag, old_cflag;
- int baud = 0, bits;
- unsigned int modem_ctl[4];
+ u32 baud;
- dbg("%s - port %d", __FUNCTION__, port->number);
+ baud = tty->termios.c_ospeed;
- if (!port->tty || !port->tty->termios) {
- dbg("%s - no tty structures", __FUNCTION__);
- return;
+ /* This maps the requested rate to a rate valid on cp2102 or cp2103,
+ * or to an arbitrary rate in [1M,2M].
+ *
+ * NOTE: B0 is not implemented.
+ */
+ baud = cp210x_quantise_baudrate(baud);
+
+ dev_dbg(&port->dev, "%s - setting baud rate to %u\n", __func__, baud);
+ if (cp210x_set_config(port, CP210X_SET_BAUDRATE, &baud,
+ sizeof(baud))) {
+ dev_warn(&port->dev, "failed to set baud rate to %u\n", baud);
+ if (old_termios)
+ baud = old_termios->c_ospeed;
+ else
+ baud = 9600;
}
- port->tty->termios->c_cflag &= ~CMSPAR;
- cflag = port->tty->termios->c_cflag;
+ tty_encode_baud_rate(tty, baud, baud);
+}
+
+static void cp210x_set_termios(struct tty_struct *tty,
+ struct usb_serial_port *port, struct ktermios *old_termios)
+{
+ struct device *dev = &port->dev;
+ unsigned int cflag, old_cflag;
+ unsigned int bits;
+ unsigned int modem_ctl[4];
+
+ cflag = tty->termios.c_cflag;
old_cflag = old_termios->c_cflag;
- baud = tty_get_baud_rate(port->tty);
-
- /* If the baud rate is to be updated*/
- if (baud != tty_termios_baud_rate(old_termios)) {
- switch (baud) {
- case 0:
- case 600:
- case 1200:
- case 1800:
- case 2400:
- case 4800:
- case 7200:
- case 9600:
- case 14400:
- case 19200:
- case 28800:
- case 38400:
- case 55854:
- case 57600:
- case 115200:
- case 127117:
- case 230400:
- case 460800:
- case 921600:
- case 3686400:
- break;
- default:
- baud = 9600;
- break;
- }
- if (baud) {
- dbg("%s - Setting baud rate to %d baud", __FUNCTION__,
- baud);
- if (cp210x_set_config_single(port, CP2101_BAUDRATE,
- (BAUD_RATE_GEN_FREQ / baud))) {
- dev_err(&port->dev, "Baud rate requested not "
- "supported by device\n");
- baud = tty_termios_baud_rate(old_termios);
- }
- }
- }
- /* Report back the resulting baud rate */
- tty_encode_baud_rate(port->tty, baud, baud);
+ if (tty->termios.c_ospeed != old_termios->c_ospeed)
+ cp210x_change_speed(tty, port, old_termios);
/* If the number of data bits is to be updated */
if ((cflag & CSIZE) != (old_cflag & CSIZE)) {
- cp210x_get_config(port, CP2101_BITS, &bits, 2);
+ cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
bits &= ~BITS_DATA_MASK;
switch (cflag & CSIZE) {
- case CS5:
- bits |= BITS_DATA_5;
- dbg("%s - data bits = 5", __FUNCTION__);
- break;
- case CS6:
- bits |= BITS_DATA_6;
- dbg("%s - data bits = 6", __FUNCTION__);
- break;
- case CS7:
- bits |= BITS_DATA_7;
- dbg("%s - data bits = 7", __FUNCTION__);
- break;
- case CS8:
- bits |= BITS_DATA_8;
- dbg("%s - data bits = 8", __FUNCTION__);
- break;
- /*case CS9:
- bits |= BITS_DATA_9;
- dbg("%s - data bits = 9", __FUNCTION__);
- break;*/
- default:
- dev_err(&port->dev, "cp210x driver does not "
- "support the number of bits requested,"
- " using 8 bit mode\n");
- bits |= BITS_DATA_8;
- break;
+ case CS5:
+ bits |= BITS_DATA_5;
+ dev_dbg(dev, "%s - data bits = 5\n", __func__);
+ break;
+ case CS6:
+ bits |= BITS_DATA_6;
+ dev_dbg(dev, "%s - data bits = 6\n", __func__);
+ break;
+ case CS7:
+ bits |= BITS_DATA_7;
+ dev_dbg(dev, "%s - data bits = 7\n", __func__);
+ break;
+ case CS8:
+ bits |= BITS_DATA_8;
+ dev_dbg(dev, "%s - data bits = 8\n", __func__);
+ break;
+ /*case CS9:
+ bits |= BITS_DATA_9;
+ dev_dbg(dev, "%s - data bits = 9\n", __func__);
+ break;*/
+ default:
+ dev_dbg(dev, "cp210x driver does not support the number of bits requested, using 8 bit mode\n");
+ bits |= BITS_DATA_8;
+ break;
}
- if (cp210x_set_config(port, CP2101_BITS, &bits, 2))
- dev_err(&port->dev, "Number of data bits requested "
- "not supported by device\n");
+ if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+ dev_dbg(dev, "Number of data bits requested not supported by device\n");
}
- if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) {
- cp210x_get_config(port, CP2101_BITS, &bits, 2);
+ if ((cflag & (PARENB|PARODD|CMSPAR)) !=
+ (old_cflag & (PARENB|PARODD|CMSPAR))) {
+ cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
bits &= ~BITS_PARITY_MASK;
if (cflag & PARENB) {
- if (cflag & PARODD) {
- bits |= BITS_PARITY_ODD;
- dbg("%s - parity = ODD", __FUNCTION__);
+ if (cflag & CMSPAR) {
+ if (cflag & PARODD) {
+ bits |= BITS_PARITY_MARK;
+ dev_dbg(dev, "%s - parity = MARK\n", __func__);
+ } else {
+ bits |= BITS_PARITY_SPACE;
+ dev_dbg(dev, "%s - parity = SPACE\n", __func__);
+ }
} else {
- bits |= BITS_PARITY_EVEN;
- dbg("%s - parity = EVEN", __FUNCTION__);
+ if (cflag & PARODD) {
+ bits |= BITS_PARITY_ODD;
+ dev_dbg(dev, "%s - parity = ODD\n", __func__);
+ } else {
+ bits |= BITS_PARITY_EVEN;
+ dev_dbg(dev, "%s - parity = EVEN\n", __func__);
+ }
}
}
- if (cp210x_set_config(port, CP2101_BITS, &bits, 2))
- dev_err(&port->dev, "Parity mode not supported "
- "by device\n");
+ if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+ dev_dbg(dev, "Parity mode not supported by device\n");
}
if ((cflag & CSTOPB) != (old_cflag & CSTOPB)) {
- cp210x_get_config(port, CP2101_BITS, &bits, 2);
+ cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
bits &= ~BITS_STOP_MASK;
if (cflag & CSTOPB) {
bits |= BITS_STOP_2;
- dbg("%s - stop bits = 2", __FUNCTION__);
+ dev_dbg(dev, "%s - stop bits = 2\n", __func__);
} else {
bits |= BITS_STOP_1;
- dbg("%s - stop bits = 1", __FUNCTION__);
+ dev_dbg(dev, "%s - stop bits = 1\n", __func__);
}
- if (cp210x_set_config(port, CP2101_BITS, &bits, 2))
- dev_err(&port->dev, "Number of stop bits requested "
- "not supported by device\n");
+ if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
+ dev_dbg(dev, "Number of stop bits requested not supported by device\n");
}
if ((cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
- cp210x_get_config(port, CP2101_MODEMCTL, modem_ctl, 16);
- dbg("%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
- __FUNCTION__, modem_ctl[0], modem_ctl[1],
- modem_ctl[2], modem_ctl[3]);
+ cp210x_get_config(port, CP210X_GET_FLOW, modem_ctl, 16);
+ dev_dbg(dev, "%s - read modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n",
+ __func__, modem_ctl[0], modem_ctl[1],
+ modem_ctl[2], modem_ctl[3]);
if (cflag & CRTSCTS) {
modem_ctl[0] &= ~0x7B;
modem_ctl[0] |= 0x09;
modem_ctl[1] = 0x80;
- dbg("%s - flow control = CRTSCTS", __FUNCTION__);
+ dev_dbg(dev, "%s - flow control = CRTSCTS\n", __func__);
} else {
modem_ctl[0] &= ~0x7B;
modem_ctl[0] |= 0x01;
modem_ctl[1] |= 0x40;
- dbg("%s - flow control = NONE", __FUNCTION__);
+ dev_dbg(dev, "%s - flow control = NONE\n", __func__);
}
- dbg("%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x",
- __FUNCTION__, modem_ctl[0], modem_ctl[1],
- modem_ctl[2], modem_ctl[3]);
- cp210x_set_config(port, CP2101_MODEMCTL, modem_ctl, 16);
+ dev_dbg(dev, "%s - write modem controls = 0x%.4x 0x%.4x 0x%.4x 0x%.4x\n",
+ __func__, modem_ctl[0], modem_ctl[1],
+ modem_ctl[2], modem_ctl[3]);
+ cp210x_set_config(port, CP210X_SET_FLOW, modem_ctl, 16);
}
}
-static int cp210x_tiocmset(struct usb_serial_port *port, struct file *file,
+static int cp210x_tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
- int control = 0;
+ struct usb_serial_port *port = tty->driver_data;
+ return cp210x_tiocmset_port(port, set, clear);
+}
- dbg("%s - port %d", __FUNCTION__, port->number);
+static int cp210x_tiocmset_port(struct usb_serial_port *port,
+ unsigned int set, unsigned int clear)
+{
+ unsigned int control = 0;
if (set & TIOCM_RTS) {
control |= CONTROL_RTS;
control |= CONTROL_WRITE_DTR;
}
- dbg("%s - control = 0x%.4x", __FUNCTION__, control);
-
- return cp210x_set_config(port, CP2101_CONTROL, &control, 2);
+ dev_dbg(&port->dev, "%s - control = 0x%.4x\n", __func__, control);
+ return cp210x_set_config(port, CP210X_SET_MHS, &control, 2);
}
-static int cp210x_tiocmget(struct usb_serial_port *port, struct file *file)
+static void cp210x_dtr_rts(struct usb_serial_port *p, int on)
{
- int control, result;
+ if (on)
+ cp210x_tiocmset_port(p, TIOCM_DTR|TIOCM_RTS, 0);
+ else
+ cp210x_tiocmset_port(p, 0, TIOCM_DTR|TIOCM_RTS);
+}
- dbg("%s - port %d", __FUNCTION__, port->number);
+static int cp210x_tiocmget(struct tty_struct *tty)
+{
+ struct usb_serial_port *port = tty->driver_data;
+ unsigned int control;
+ int result;
- cp210x_get_config(port, CP2101_CONTROL, &control, 1);
+ cp210x_get_config(port, CP210X_GET_MDMSTS, &control, 1);
result = ((control & CONTROL_DTR) ? TIOCM_DTR : 0)
|((control & CONTROL_RTS) ? TIOCM_RTS : 0)
|((control & CONTROL_RING)? TIOCM_RI : 0)
|((control & CONTROL_DCD) ? TIOCM_CD : 0);
- dbg("%s - control = 0x%.2x", __FUNCTION__, control);
+ dev_dbg(&port->dev, "%s - control = 0x%.2x\n", __func__, control);
return result;
}
-static void cp210x_break_ctl(struct usb_serial_port *port, int break_state)
+static void cp210x_break_ctl(struct tty_struct *tty, int break_state)
{
- int state;
+ struct usb_serial_port *port = tty->driver_data;
+ unsigned int state;
- dbg("%s - port %d", __FUNCTION__, port->number);
if (break_state == 0)
state = BREAK_OFF;
else
state = BREAK_ON;
- dbg("%s - turning break %s", __FUNCTION__,
- state==BREAK_OFF ? "off" : "on");
- cp210x_set_config(port, CP2101_BREAK, &state, 2);
+ dev_dbg(&port->dev, "%s - turning break %s\n", __func__,
+ state == BREAK_OFF ? "off" : "on");
+ cp210x_set_config(port, CP210X_SET_BREAK, &state, 2);
}
static int cp210x_startup(struct usb_serial *serial)
{
- /* CP2101 buffers behave strangely unless device is reset */
- usb_reset_device(serial->dev);
- return 0;
-}
-
-static void cp210x_shutdown(struct usb_serial *serial)
-{
- int i;
+ struct usb_host_interface *cur_altsetting;
+ struct cp210x_serial_private *spriv;
- dbg("%s", __FUNCTION__);
-
- /* Stop reads and writes on all ports */
- for (i = 0; i < serial->num_ports; ++i) {
- cp210x_cleanup(serial->port[i]);
- }
-}
+ /* cp210x buffers behave strangely unless device is reset */
+ usb_reset_device(serial->dev);
-static int __init cp210x_init(void)
-{
- int retval;
+ spriv = kzalloc(sizeof(*spriv), GFP_KERNEL);
+ if (!spriv)
+ return -ENOMEM;
- retval = usb_serial_register(&cp210x_device);
- if (retval)
- return retval; /* Failed to register */
+ cur_altsetting = serial->interface->cur_altsetting;
+ spriv->bInterfaceNumber = cur_altsetting->desc.bInterfaceNumber;
- retval = usb_register(&cp210x_driver);
- if (retval) {
- /* Failed to register */
- usb_serial_deregister(&cp210x_device);
- return retval;
- }
+ usb_set_serial_data(serial, spriv);
- /* Success */
- info(DRIVER_DESC " " DRIVER_VERSION);
return 0;
}
-static void __exit cp210x_exit(void)
+static void cp210x_release(struct usb_serial *serial)
{
- usb_deregister(&cp210x_driver);
- usb_serial_deregister(&cp210x_device);
+ struct cp210x_serial_private *spriv;
+
+ spriv = usb_get_serial_data(serial);
+ kfree(spriv);
}
-module_init(cp210x_init);
-module_exit(cp210x_exit);
+module_usb_serial_driver(serial_drivers, id_table);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_VERSION(DRIVER_VERSION);
MODULE_LICENSE("GPL");
-
-module_param(debug, bool, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "Enable verbose debugging messages");
projects / cp210x.git / blobdiff