diff options
Diffstat (limited to 'drivers/usb/serial/ftdi_sio.c')
| -rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 1519 |
1 files changed, 716 insertions, 803 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 216f187582a..8a3813be1b2 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1,6 +1,8 @@ /* * USB FTDI SIO driver * + * Copyright (C) 2009 - 2013 + * Johan Hovold (jhovold@gmail.com) * Copyright (C) 1999 - 2001 * Greg Kroah-Hartman (greg@kroah.com) * Bill Ryder (bryder@sgi.com) @@ -15,7 +17,7 @@ * See Documentation/usb/usb-serial.txt for more information on using this * driver * - * See http://ftdi-usb-sio.sourceforge.net for upto date testing info + * See http://ftdi-usb-sio.sourceforge.net for up to date testing info * and extra documentation * * Change entries from 2004 and earlier can be found in versions of this @@ -31,14 +33,13 @@ #include <linux/kernel.h> #include <linux/errno.h> -#include <linux/init.h> #include <linux/slab.h> -#include <linux/smp_lock.h> #include <linux/tty.h> #include <linux/tty_driver.h> #include <linux/tty_flip.h> #include <linux/module.h> #include <linux/spinlock.h> +#include <linux/mutex.h> #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/serial.h> @@ -46,20 +47,12 @@ #include "ftdi_sio.h" #include "ftdi_sio_ids.h" -/* - * Version Information - */ -#define DRIVER_VERSION "v1.5.0" -#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>" +#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr, Johan Hovold <jhovold@gmail.com>" #define DRIVER_DESC "USB FTDI Serial Converters Driver" -static int debug; -static __u16 vendor = FTDI_VID; -static __u16 product; struct ftdi_private { - struct kref kref; - ftdi_chip_type_t chip_type; + enum ftdi_chip_type chip_type; /* type of device, either SIO or FT8U232AM */ int baud_base; /* baud base clock for divisor setting */ int custom_divisor; /* custom_divisor kludge, this is for @@ -69,15 +62,10 @@ struct ftdi_private { /* the last data state set - needed for doing * a break */ - int write_offset; /* This is the offset in the usb data block to - * write the serial data - it varies between - * devices - */ int flags; /* some ASYNC_xxxx flags are supported */ unsigned long last_dtr_rts; /* saved modem control outputs */ - wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ - char prev_status, diff_status; /* Used for TIOCMIWAIT */ - struct usb_serial_port *port; + char prev_status; /* Used for TIOCMIWAIT */ + char transmit_empty; /* If transmitter is empty or not */ __u16 interface; /* FT2232C, FT2232H or FT4232H port interface (0 for FT232/245) */ @@ -87,11 +75,8 @@ struct ftdi_private { be enabled */ unsigned int latency; /* latency setting in use */ - spinlock_t tx_lock; /* spinlock for transmit state */ - unsigned long tx_bytes; - unsigned long tx_outstanding_bytes; - unsigned long tx_outstanding_urbs; unsigned short max_packet_size; + struct mutex cfg_lock; /* Avoid mess by parallel calls of config ioctl() and change_speed() */ }; /* struct ftdi_sio_quirk is used by devices requiring special attention. */ @@ -104,6 +89,8 @@ struct ftdi_sio_quirk { static int ftdi_jtag_probe(struct usb_serial *serial); static int ftdi_mtxorb_hack_setup(struct usb_serial *serial); static int ftdi_NDI_device_setup(struct usb_serial *serial); +static int ftdi_stmclite_probe(struct usb_serial *serial); +static int ftdi_8u2232c_probe(struct usb_serial *serial); static void ftdi_USB_UIRT_setup(struct ftdi_private *priv); static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv); @@ -127,6 +114,14 @@ static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = { .port_probe = ftdi_HE_TIRA1_setup, }; +static struct ftdi_sio_quirk ftdi_stmclite_quirk = { + .probe = ftdi_stmclite_probe, +}; + +static struct ftdi_sio_quirk ftdi_8u2232c_quirk = { + .probe = ftdi_8u2232c_probe, +}; + /* * The 8U232AM has the same API as the sio except for: * - it can support MUCH higher baudrates; up to: @@ -145,10 +140,19 @@ static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = { -static struct usb_device_id id_table_combined [] = { +/* + * Device ID not listed? Test it using + * /sys/bus/usb-serial/drivers/ftdi_sio/new_id and send a patch or report. + */ +static const struct usb_device_id id_table_combined[] = { + { USB_DEVICE(FTDI_VID, FTDI_ZEITCONTROL_TAGTRACE_MIFARE_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CTI_MINI_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CTI_NANO_PID) }, { USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) }, { USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) }, { USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_EV3CON_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) }, @@ -157,6 +161,9 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_USINT_CAT_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_USINT_WKEY_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_USINT_RS232_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, @@ -166,17 +173,28 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) }, { USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) }, { USB_DEVICE(FTDI_VID, FTDI_232RL_PID) }, - { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) , + .driver_info = (kernel_ulong_t)&ftdi_8u2232c_quirk }, { USB_DEVICE(FTDI_VID, FTDI_4232H_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_232H_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_FTX_PID) }, { USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) }, { USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) }, { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_PID) }, { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_SNIFFER_PID) }, { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_THROTTLE_PID) }, { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GATEWAY_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) }, + { USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) }, + { USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_CC_PID) }, + { USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_AGP_PID) }, { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) }, { USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SPROG_II) }, + { USB_DEVICE(FTDI_VID, FTDI_TAGSYS_LP101_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_TAGSYS_P200X_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_LENZ_LIUSB_PID) }, { USB_DEVICE(FTDI_VID, FTDI_XF_632_PID) }, { USB_DEVICE(FTDI_VID, FTDI_XF_634_PID) }, { USB_DEVICE(FTDI_VID, FTDI_XF_547_PID) }, @@ -186,6 +204,8 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_XF_640_PID) }, { USB_DEVICE(FTDI_VID, FTDI_XF_642_PID) }, { USB_DEVICE(FTDI_VID, FTDI_DSS20_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_URBAN_0_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_URBAN_1_PID) }, { USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) }, { USB_DEVICE(FTDI_VID, FTDI_VNHCPCUSB_D_PID) }, { USB_DEVICE(FTDI_VID, FTDI_MTXORB_0_PID) }, @@ -196,6 +216,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_MTXORB_5_PID) }, { USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) }, { USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) }, + { USB_DEVICE(FTDI_VID, FTDI_VARDAAN_PID) }, { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) }, { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) }, { USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) }, @@ -511,8 +532,13 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_6_PID) }, { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_7_PID) }, { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803_8_PID) }, + { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_1_PID) }, + { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_2_PID) }, + { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_3_PID) }, + { USB_DEVICE(SEALEVEL_VID, SEALEVEL_2803R_4_PID) }, { USB_DEVICE(IDTECH_VID, IDTECH_IDT1221U_PID) }, { USB_DEVICE(OCT_VID, OCT_US101_PID) }, + { USB_DEVICE(OCT_VID, OCT_DK201_PID) }, { USB_DEVICE(FTDI_VID, FTDI_HE_TIRA1_PID), .driver_info = (kernel_ulong_t)&ftdi_HE_TIRA1_quirk }, { USB_DEVICE(FTDI_VID, FTDI_USB_UIRT_PID), @@ -551,10 +577,23 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_IBS_APP70_PID) }, { USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) }, { USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_TAVIR_STK500_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_TIAO_UMPA_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLXM_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, /* - * Due to many user requests for multiple ELV devices we enable - * them by default. + * ELV devices: */ + { USB_DEVICE(FTDI_ELV_VID, FTDI_ELV_WS300_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) }, @@ -571,11 +610,17 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) }, { USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) }, { USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) }, { USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) }, @@ -596,6 +641,9 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_OCEANIC_PID) }, { USB_DEVICE(TTI_VID, TTI_QL355P_PID) }, { USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) }, + { USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) }, + { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) }, + { USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) }, { USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) }, @@ -616,6 +664,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, EVER_ECO_PRO_CDS) }, { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_1_PID) }, { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_2_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_4N_GALAXY_DE_3_PID) }, { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_0_PID) }, { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_1_PID) }, { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_2_PID) }, @@ -624,6 +673,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_5_PID) }, { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_6_PID) }, { USB_DEVICE(FTDI_VID, XSENS_CONVERTER_7_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_OMNI1509) }, { USB_DEVICE(MOBILITY_VID, MOBILITY_USB_SERIAL_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ACTIVE_ROBOTS_PID) }, { USB_DEVICE(FTDI_VID, FTDI_MHAM_KW_PID) }, @@ -655,12 +705,23 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_PCDJ_DAC2_PID) }, { USB_DEVICE(FTDI_VID, FTDI_RRCIRKITS_LOCOBUFFER_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ASK_RDR400_PID) }, - { USB_DEVICE(ICOM_ID1_VID, ICOM_ID1_PID) }, - { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_NZR_SEM_USB_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_1_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_OPC_U_UC_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP2C1_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP2C2_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP2D_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP2VT_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP2VR_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVT_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP4KVR_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVT_PID) }, + { USB_DEVICE(ICOM_VID, ICOM_ID_RP2KVR_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ACG_HFDUAL_PID) }, { USB_DEVICE(FTDI_VID, FTDI_YEI_SERVOCENTER31_PID) }, { USB_DEVICE(FTDI_VID, FTDI_THORLABS_PID) }, - { USB_DEVICE(TESTO_VID, TESTO_USB_INTERFACE_PID) }, + { USB_DEVICE(TESTO_VID, TESTO_1_PID) }, + { USB_DEVICE(TESTO_VID, TESTO_3_PID) }, { USB_DEVICE(FTDI_VID, FTDI_GAMMA_SCOUT_PID) }, { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13M_PID) }, { USB_DEVICE(FTDI_VID, FTDI_TACTRIX_OPENPORT_13S_PID) }, @@ -677,13 +738,44 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_NDI_AURORA_SCU_PID), .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S03_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_59_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57A_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57B_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29A_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29B_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29F_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62B_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S01_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_29C_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_81B_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_82B_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5D_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K4Y_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_K5G_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S05_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_60_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_61_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_62_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_63B_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_64_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_65_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_92D_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_W5R_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_A5R_PID) }, + { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_PW1_PID) }, { USB_DEVICE(FTDI_VID, FTDI_MAXSTREAM_PID) }, { USB_DEVICE(FTDI_VID, FTDI_PHI_FISCO_PID) }, { USB_DEVICE(TML_VID, TML_USB_SERIAL_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ELSTER_UNICOM_PID) }, { USB_DEVICE(FTDI_VID, FTDI_PROPOX_JTAGCABLEII_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_PROPOX_ISPCABLEIII_PID) }, { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(OLIMEX_VID, OLIMEX_ARM_USB_OCD_H_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FIC_VID, FIC_NEO1973_DEBUG_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FTDI_VID, FTDI_OOCDLINK_PID), @@ -692,11 +784,43 @@ static struct usb_device_id id_table_combined [] = { .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FTDI_VID, LMI_LM3S_EVAL_BOARD_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, LMI_LM3S_ICDI_BOARD_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FTDI_VID, FTDI_TURTELIZER_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) }, { USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) }, + + /* Papouch devices based on FTDI chip */ + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485_2_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AP485_2_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB422_2_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485S_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB485C_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_LEC_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_SB232_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_TMU_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_IRAMP_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK5_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO8x8_PID) }, { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x2_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO10x1_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO30x3_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO60x3_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO2x16_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO3x32_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_DRAK6_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_UPSUSB_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_MU_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_SIMUKEY_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMUX_PID) }, + { USB_DEVICE(PAPOUCH_VID, PAPOUCH_GMSR_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) }, { USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) }, { USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) }, @@ -708,30 +832,126 @@ static struct usb_device_id id_table_combined [] = { .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(ADI_VID, ADI_GNICEPLUS_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE_AND_INTERFACE_INFO(MICROCHIP_VID, MICROCHIP_USB_BOARD_PID, + USB_CLASS_VENDOR_SPEC, + USB_SUBCLASS_VENDOR_SPEC, 0x00) }, { USB_DEVICE(JETI_VID, JETI_SPC1201_PID) }, { USB_DEVICE(MARVELL_VID, MARVELL_SHEEVAPLUG_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(LARSENBRUSGAARD_VID, LB_ALTITRACK_PID) }, { USB_DEVICE(GN_OTOMETRICS_VID, AURICAL_USB_PID) }, + { USB_DEVICE(FTDI_VID, PI_C865_PID) }, + { USB_DEVICE(FTDI_VID, PI_C857_PID) }, + { USB_DEVICE(PI_VID, PI_C866_PID) }, + { USB_DEVICE(PI_VID, PI_C663_PID) }, + { USB_DEVICE(PI_VID, PI_C725_PID) }, + { USB_DEVICE(PI_VID, PI_E517_PID) }, + { USB_DEVICE(PI_VID, PI_C863_PID) }, + { USB_DEVICE(PI_VID, PI_E861_PID) }, + { USB_DEVICE(PI_VID, PI_C867_PID) }, + { USB_DEVICE(PI_VID, PI_E609_PID) }, + { USB_DEVICE(PI_VID, PI_E709_PID) }, + { USB_DEVICE(PI_VID, PI_100F_PID) }, + { USB_DEVICE(PI_VID, PI_1011_PID) }, + { USB_DEVICE(PI_VID, PI_1012_PID) }, + { USB_DEVICE(PI_VID, PI_1013_PID) }, + { USB_DEVICE(PI_VID, PI_1014_PID) }, + { USB_DEVICE(PI_VID, PI_1015_PID) }, + { USB_DEVICE(PI_VID, PI_1016_PID) }, + { USB_DEVICE(KONDO_VID, KONDO_USB_SERIAL_PID) }, { USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) }, { USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, TI_XDS100V2_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FTDI_VID, HAMEG_HO820_PID) }, + { USB_DEVICE(FTDI_VID, HAMEG_HO720_PID) }, + { USB_DEVICE(FTDI_VID, HAMEG_HO730_PID) }, { USB_DEVICE(FTDI_VID, HAMEG_HO870_PID) }, - { }, /* Optional parameter entry */ + { USB_DEVICE(FTDI_VID, MJSG_GENERIC_PID) }, + { USB_DEVICE(FTDI_VID, MJSG_SR_RADIO_PID) }, + { USB_DEVICE(FTDI_VID, MJSG_HD_RADIO_PID) }, + { USB_DEVICE(FTDI_VID, MJSG_XM_RADIO_PID) }, + { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_ST_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SLITE_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH2_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH4_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, SEGWAY_RMP200_PID) }, + { USB_DEVICE(FTDI_VID, ACCESIO_COM4SM_PID) }, + { USB_DEVICE(IONICS_VID, IONICS_PLUGCOMPUTER_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_24_MASTER_WING_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_PC_WING_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_USB_DMX_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MIDI_TIMECODE_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MINI_WING_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MAXI_WING_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_MEDIA_WING_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CHAMSYS_WING_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LOGBOOKML_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_CINTERION_MC55I_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) }, + { USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(ST_VID, ST_STMCLT_2232_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(ST_VID, ST_STMCLT_4232_PID), + .driver_info = (kernel_ulong_t)&ftdi_stmclite_quirk }, + { USB_DEVICE(FTDI_VID, FTDI_RF_R106) }, + { USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID), + .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) }, + /* Crucible Devices */ + { USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_Z3X_PID) }, + /* Cressi Devices */ + { USB_DEVICE(FTDI_VID, FTDI_CRESSI_PID) }, + /* Brainboxes Devices */ + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_001_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_012_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_023_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_VX_034_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_101_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_1_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_2_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_3_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_4_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_5_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_6_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_7_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_160_8_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_257_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_1_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_2_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_3_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_279_4_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_313_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_324_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_346_1_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_346_2_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_357_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_606_1_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_606_2_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_606_3_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_701_1_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_701_2_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_842_1_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_842_2_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_842_3_PID) }, + { USB_DEVICE(BRAINBOXES_VID, BRAINBOXES_US_842_4_PID) }, + /* Infineon Devices */ + { USB_DEVICE_INTERFACE_NUMBER(INFINEON_VID, INFINEON_TRIBOARD_PID, 1) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, id_table_combined); -static struct usb_driver ftdi_driver = { - .name = "ftdi_sio", - .probe = usb_serial_probe, - .disconnect = usb_serial_disconnect, - .id_table = id_table_combined, - .no_dynamic_id = 1, -}; - static const char *ftdi_chip_name[] = { [SIO] = "SIO", /* the serial part of FT8U100AX */ [FT8U232AM] = "FT8U232AM", @@ -739,46 +959,38 @@ static const char *ftdi_chip_name[] = { [FT2232C] = "FT2232C", [FT232RL] = "FT232RL", [FT2232H] = "FT2232H", - [FT4232H] = "FT4232H" + [FT4232H] = "FT4232H", + [FT232H] = "FT232H", + [FTX] = "FT-X" }; -/* Constants for read urb and write urb */ -#define BUFSZ 512 - /* Used for TIOCMIWAIT */ #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) /* End TIOCMIWAIT */ -#define FTDI_IMPL_ASYNC_FLAGS = (ASYNC_SPD_HI | ASYNC_SPD_VHI \ - | ASYNC_SPD_CUST | ASYNC_SPD_SHI | ASYNC_SPD_WARP) - /* function prototypes for a FTDI serial converter */ static int ftdi_sio_probe(struct usb_serial *serial, const struct usb_device_id *id); static int ftdi_sio_port_probe(struct usb_serial_port *port); static int ftdi_sio_port_remove(struct usb_serial_port *port); static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port); -static void ftdi_close(struct usb_serial_port *port); static void ftdi_dtr_rts(struct usb_serial_port *port, int on); -static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, - const unsigned char *buf, int count); -static int ftdi_write_room(struct tty_struct *tty); -static int ftdi_chars_in_buffer(struct tty_struct *tty); -static void ftdi_write_bulk_callback(struct urb *urb); -static void ftdi_read_bulk_callback(struct urb *urb); -static void ftdi_process_read(struct usb_serial_port *port); +static void ftdi_process_read_urb(struct urb *urb); +static int ftdi_prepare_write_buffer(struct usb_serial_port *port, + void *dest, size_t size); static void ftdi_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old); -static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); -static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, +static int ftdi_tiocmget(struct tty_struct *tty); +static int ftdi_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear); -static int ftdi_ioctl(struct tty_struct *tty, struct file *file, +static int ftdi_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg); static void ftdi_break_ctl(struct tty_struct *tty, int break_state); -static void ftdi_throttle(struct tty_struct *tty); -static void ftdi_unthrottle(struct tty_struct *tty); +static bool ftdi_tx_empty(struct usb_serial_port *port); +static int ftdi_get_modem_status(struct usb_serial_port *port, + unsigned char status[2]); static unsigned short int ftdi_232am_baud_base_to_divisor(int baud, int base); static unsigned short int ftdi_232am_baud_to_divisor(int baud); @@ -793,40 +1005,37 @@ static struct usb_serial_driver ftdi_sio_device = { .name = "ftdi_sio", }, .description = "FTDI USB Serial Device", - .usb_driver = &ftdi_driver , .id_table = id_table_combined, .num_ports = 1, + .bulk_in_size = 512, + .bulk_out_size = 256, .probe = ftdi_sio_probe, .port_probe = ftdi_sio_port_probe, .port_remove = ftdi_sio_port_remove, .open = ftdi_open, - .close = ftdi_close, .dtr_rts = ftdi_dtr_rts, - .throttle = ftdi_throttle, - .unthrottle = ftdi_unthrottle, - .write = ftdi_write, - .write_room = ftdi_write_room, - .chars_in_buffer = ftdi_chars_in_buffer, - .read_bulk_callback = ftdi_read_bulk_callback, - .write_bulk_callback = ftdi_write_bulk_callback, - .tiocmget = ftdi_tiocmget, - .tiocmset = ftdi_tiocmset, + .throttle = usb_serial_generic_throttle, + .unthrottle = usb_serial_generic_unthrottle, + .process_read_urb = ftdi_process_read_urb, + .prepare_write_buffer = ftdi_prepare_write_buffer, + .tiocmget = ftdi_tiocmget, + .tiocmset = ftdi_tiocmset, + .tiocmiwait = usb_serial_generic_tiocmiwait, + .get_icount = usb_serial_generic_get_icount, .ioctl = ftdi_ioctl, .set_termios = ftdi_set_termios, .break_ctl = ftdi_break_ctl, + .tx_empty = ftdi_tx_empty, +}; + +static struct usb_serial_driver * const serial_drivers[] = { + &ftdi_sio_device, NULL }; #define WDR_TIMEOUT 5000 /* default urb timeout */ #define WDR_SHORT_TIMEOUT 1000 /* shorter urb timeout */ -/* High and low are for DTR, RTS etc etc */ -#define HIGH 1 -#define LOW 0 - -/* number of outstanding urbs to prevent userspace DoS from happening */ -#define URB_UPPER_LIMIT 42 - /* * *************************************************************************** * Utility functions @@ -886,7 +1095,7 @@ static __u32 ftdi_2232h_baud_base_to_divisor(int baud, int base) int divisor3; /* hi-speed baud rate is 10-bit sampling instead of 16-bit */ - divisor3 = (base / 10 / baud) * 8; + divisor3 = base * 8 / (baud * 10); divisor = divisor3 >> 3; divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; @@ -916,19 +1125,15 @@ static int update_mctrl(struct usb_serial_port *port, unsigned int set, unsigned int clear) { struct ftdi_private *priv = usb_get_serial_port_data(port); - char *buf; + struct device *dev = &port->dev; unsigned urb_value; int rv; if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { - dbg("%s - DTR|RTS not being set|cleared", __func__); + dev_dbg(dev, "%s - DTR|RTS not being set|cleared\n", __func__); return 0; /* no change */ } - buf = kmalloc(1, GFP_NOIO); - if (!buf) - return -ENOMEM; - clear &= ~set; /* 'set' takes precedence over 'clear' */ urb_value = 0; if (clear & TIOCM_DTR) @@ -944,22 +1149,17 @@ static int update_mctrl(struct usb_serial_port *port, unsigned int set, FTDI_SIO_SET_MODEM_CTRL_REQUEST, FTDI_SIO_SET_MODEM_CTRL_REQUEST_TYPE, urb_value, priv->interface, - buf, 0, WDR_TIMEOUT); - - kfree(buf); + NULL, 0, WDR_TIMEOUT); if (rv < 0) { - dbg("%s Error from MODEM_CTRL urb: DTR %s, RTS %s", - __func__, - (set & TIOCM_DTR) ? "HIGH" : - (clear & TIOCM_DTR) ? "LOW" : "unchanged", - (set & TIOCM_RTS) ? "HIGH" : - (clear & TIOCM_RTS) ? "LOW" : "unchanged"); + dev_dbg(dev, "%s Error from MODEM_CTRL urb: DTR %s, RTS %s\n", + __func__, + (set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged", + (set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged"); + rv = usb_translate_errors(rv); } else { - dbg("%s - DTR %s, RTS %s", __func__, - (set & TIOCM_DTR) ? "HIGH" : - (clear & TIOCM_DTR) ? "LOW" : "unchanged", - (set & TIOCM_RTS) ? "HIGH" : - (clear & TIOCM_RTS) ? "LOW" : "unchanged"); + dev_dbg(dev, "%s - DTR %s, RTS %s\n", __func__, + (set & TIOCM_DTR) ? "HIGH" : (clear & TIOCM_DTR) ? "LOW" : "unchanged", + (set & TIOCM_RTS) ? "HIGH" : (clear & TIOCM_RTS) ? "LOW" : "unchanged"); /* FIXME: locking on last_dtr_rts */ priv->last_dtr_rts = (priv->last_dtr_rts & ~clear) | set; } @@ -969,8 +1169,9 @@ static int update_mctrl(struct usb_serial_port *port, unsigned int set, static __u32 get_ftdi_divisor(struct tty_struct *tty, struct usb_serial_port *port) -{ /* get_ftdi_divisor */ +{ struct ftdi_private *priv = usb_get_serial_port_data(port); + struct device *dev = &port->dev; __u32 div_value = 0; int div_okay = 1; int baud; @@ -1006,7 +1207,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, alt_speed hack */ baud = tty_get_baud_rate(tty); - dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); + dev_dbg(dev, "%s - tty_get_baud_rate reports speed %d\n", __func__, baud); /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */ @@ -1015,8 +1216,8 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, ((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && (priv->custom_divisor)) { baud = priv->baud_base / priv->custom_divisor; - dbg("%s - custom divisor %d sets baud rate to %d", - __func__, priv->custom_divisor, baud); + dev_dbg(dev, "%s - custom divisor %d sets baud rate to %d\n", + __func__, priv->custom_divisor, baud); } /* 3. Convert baudrate to device-specific divisor */ @@ -1038,8 +1239,8 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, case 115200: div_value = ftdi_sio_b115200; break; } /* baud */ if (div_value == 0) { - dbg("%s - Baudrate (%d) requested is not supported", - __func__, baud); + dev_dbg(dev, "%s - Baudrate (%d) requested is not supported\n", + __func__, baud); div_value = ftdi_sio_b9600; baud = 9600; div_okay = 0; @@ -1049,7 +1250,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, if (baud <= 3000000) { div_value = ftdi_232am_baud_to_divisor(baud); } else { - dbg("%s - Baud rate too high!", __func__); + dev_dbg(dev, "%s - Baud rate too high!\n", __func__); baud = 9600; div_value = ftdi_232am_baud_to_divisor(9600); div_okay = 0; @@ -1057,7 +1258,8 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, break; case FT232BM: /* FT232BM chip */ case FT2232C: /* FT2232C chip */ - case FT232RL: + case FT232RL: /* FT232RL chip */ + case FTX: /* FT-X series */ if (baud <= 3000000) { __u16 product_id = le16_to_cpu( port->serial->dev->descriptor.idProduct); @@ -1071,7 +1273,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, } div_value = ftdi_232bm_baud_to_divisor(baud); } else { - dbg("%s - Baud rate too high!", __func__); + dev_dbg(dev, "%s - Baud rate too high!\n", __func__); div_value = ftdi_232bm_baud_to_divisor(9600); div_okay = 0; baud = 9600; @@ -1079,12 +1281,13 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, break; case FT2232H: /* FT2232H chip */ case FT4232H: /* FT4232H chip */ - if ((baud <= 12000000) & (baud >= 1200)) { + case FT232H: /* FT232H chip */ + if ((baud <= 12000000) && (baud >= 1200)) { div_value = ftdi_2232h_baud_to_divisor(baud); } else if (baud < 1200) { div_value = ftdi_232bm_baud_to_divisor(baud); } else { - dbg("%s - Baud rate too high!", __func__); + dev_dbg(dev, "%s - Baud rate too high!\n", __func__); div_value = ftdi_232bm_baud_to_divisor(9600); div_okay = 0; baud = 9600; @@ -1093,7 +1296,7 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, } /* priv->chip_type */ if (div_okay) { - dbg("%s - Baud rate set to %d (divisor 0x%lX) on chip %s", + dev_dbg(dev, "%s - Baud rate set to %d (divisor 0x%lX) on chip %s\n", __func__, baud, (unsigned long)div_value, ftdi_chip_name[priv->chip_type]); } @@ -1105,20 +1308,18 @@ static __u32 get_ftdi_divisor(struct tty_struct *tty, static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) { struct ftdi_private *priv = usb_get_serial_port_data(port); - char *buf; __u16 urb_value; __u16 urb_index; __u32 urb_index_value; int rv; - buf = kmalloc(1, GFP_NOIO); - if (!buf) - return -ENOMEM; - urb_index_value = get_ftdi_divisor(tty, port); urb_value = (__u16)urb_index_value; urb_index = (__u16)(urb_index_value >> 16); - if (priv->interface) { /* FT2232C */ + if ((priv->chip_type == FT2232C) || (priv->chip_type == FT2232H) || + (priv->chip_type == FT4232H) || (priv->chip_type == FT232H)) { + /* Probably the BM type needs the MSB of the encoded fractional + * divider also moved like for the chips above. Any infos? */ urb_index = (__u16)((urb_index << 8) | priv->interface); } @@ -1127,9 +1328,7 @@ static int change_speed(struct tty_struct *tty, struct usb_serial_port *port) FTDI_SIO_SET_BAUDRATE_REQUEST, FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE, urb_value, urb_index, - buf, 0, WDR_SHORT_TIMEOUT); - - kfree(buf); + NULL, 0, WDR_SHORT_TIMEOUT); return rv; } @@ -1137,22 +1336,20 @@ static int write_latency_timer(struct usb_serial_port *port) { struct ftdi_private *priv = usb_get_serial_port_data(port); struct usb_device *udev = port->serial->dev; - char buf[1]; - int rv = 0; + int rv; int l = priv->latency; if (priv->flags & ASYNC_LOW_LATENCY) l = 1; - dbg("%s: setting latency timer = %i", __func__, l); + dev_dbg(&port->dev, "%s: setting latency timer = %i\n", __func__, l); rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), FTDI_SIO_SET_LATENCY_TIMER_REQUEST, FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, l, priv->interface, - buf, 0, WDR_TIMEOUT); - + NULL, 0, WDR_TIMEOUT); if (rv < 0) dev_err(&port->dev, "Unable to write latency timer: %i\n", rv); return rv; @@ -1162,24 +1359,27 @@ static int read_latency_timer(struct usb_serial_port *port) { struct ftdi_private *priv = usb_get_serial_port_data(port); struct usb_device *udev = port->serial->dev; - unsigned short latency = 0; - int rv = 0; - + unsigned char *buf; + int rv; - dbg("%s", __func__); + buf = kmalloc(1, GFP_KERNEL); + if (!buf) + return -ENOMEM; rv = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), FTDI_SIO_GET_LATENCY_TIMER_REQUEST, FTDI_SIO_GET_LATENCY_TIMER_REQUEST_TYPE, 0, priv->interface, - (char *) &latency, 1, WDR_TIMEOUT); - - if (rv < 0) { + buf, 1, WDR_TIMEOUT); + if (rv < 0) dev_err(&port->dev, "Unable to read latency timer: %i\n", rv); - return -EIO; - } - return latency; + else + priv->latency = buf[0]; + + kfree(buf); + + return rv; } static int get_serial_info(struct usb_serial_port *port, @@ -1197,12 +1397,11 @@ static int get_serial_info(struct usb_serial_port *port, if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) return -EFAULT; return 0; -} /* get_serial_info */ - +} static int set_serial_info(struct tty_struct *tty, struct usb_serial_port *port, struct serial_struct __user *newinfo) -{ /* set_serial_info */ +{ struct ftdi_private *priv = usb_get_serial_port_data(port); struct serial_struct new_serial; struct ftdi_private old_priv; @@ -1210,7 +1409,7 @@ static int set_serial_info(struct tty_struct *tty, if (copy_from_user(&new_serial, newinfo, sizeof(new_serial))) return -EFAULT; - lock_kernel(); + mutex_lock(&priv->cfg_lock); old_priv = *priv; /* Do error checking and permission checking */ @@ -1218,7 +1417,7 @@ static int set_serial_info(struct tty_struct *tty, if (!capable(CAP_SYS_ADMIN)) { if (((new_serial.flags & ~ASYNC_USR_MASK) != (priv->flags & ~ASYNC_USR_MASK))) { - unlock_kernel(); + mutex_unlock(&priv->cfg_lock); return -EPERM; } priv->flags = ((priv->flags & ~ASYNC_USR_MASK) | @@ -1227,9 +1426,8 @@ static int set_serial_info(struct tty_struct *tty, goto check_and_exit; } - if ((new_serial.baud_base != priv->baud_base) && - (new_serial.baud_base < 9600)) { - unlock_kernel(); + if (new_serial.baud_base != priv->baud_base) { + mutex_unlock(&priv->cfg_lock); return -EINVAL; } @@ -1259,14 +1457,30 @@ check_and_exit: (priv->flags & ASYNC_SPD_MASK)) || (((priv->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) && (old_priv.custom_divisor != priv->custom_divisor))) { - unlock_kernel(); change_speed(tty, port); + mutex_unlock(&priv->cfg_lock); } else - unlock_kernel(); + mutex_unlock(&priv->cfg_lock); return 0; +} + +static int get_lsr_info(struct usb_serial_port *port, + struct serial_struct __user *retinfo) +{ + struct ftdi_private *priv = usb_get_serial_port_data(port); + unsigned int result = 0; -} /* set_serial_info */ + if (!retinfo) + return -EFAULT; + + if (priv->transmit_empty) + result = TIOCSER_TEMT; + + if (copy_to_user(retinfo, &result, sizeof(unsigned int))) + return -EFAULT; + return 0; +} /* Determine type of FTDI chip based on USB config and descriptor. */ @@ -1280,12 +1494,11 @@ static void ftdi_determine_type(struct usb_serial_port *port) /* Assume it is not the original SIO device for now. */ priv->baud_base = 48000000 / 2; - priv->write_offset = 0; version = le16_to_cpu(udev->descriptor.bcdDevice); interfaces = udev->actconfig->desc.bNumInterfaces; - dbg("%s: bcdDevice = 0x%x, bNumInterfaces = %u", __func__, - version, interfaces); + dev_dbg(&port->dev, "%s: bcdDevice = 0x%x, bNumInterfaces = %u\n", __func__, + version, interfaces); if (interfaces > 1) { int inter; @@ -1315,26 +1528,33 @@ static void ftdi_determine_type(struct usb_serial_port *port) /* BM-type devices have a bug where bcdDevice gets set * to 0x200 when iSerialNumber is 0. */ if (version < 0x500) { - dbg("%s: something fishy - bcdDevice too low for multi-interface device", - __func__); + dev_dbg(&port->dev, + "%s: something fishy - bcdDevice too low for multi-interface device\n", + __func__); } } else if (version < 0x200) { - /* Old device. Assume its the original SIO. */ + /* Old device. Assume it's the original SIO. */ priv->chip_type = SIO; priv->baud_base = 12000000 / 16; - priv->write_offset = 1; } else if (version < 0x400) { - /* Assume its an FT8U232AM (or FT8U245AM) */ + /* Assume it's an FT8U232AM (or FT8U245AM) */ /* (It might be a BM because of the iSerialNumber bug, * but it will still work as an AM device.) */ priv->chip_type = FT8U232AM; } else if (version < 0x600) { - /* Assume its an FT232BM (or FT245BM) */ + /* Assume it's an FT232BM (or FT245BM) */ priv->chip_type = FT232BM; - } else { - /* Assume its an FT232R */ + } else if (version < 0x900) { + /* Assume it's an FT232RL */ priv->chip_type = FT232RL; + } else if (version < 0x1000) { + /* Assume it's an FT232H */ + priv->chip_type = FT232H; + } else { + /* Assume it's an FT-X series device */ + priv->chip_type = FTX; } + dev_info(&udev->dev, "Detected %s\n", ftdi_chip_name[priv->chip_type]); } @@ -1349,14 +1569,17 @@ static void ftdi_set_max_packet_size(struct usb_serial_port *port) struct usb_device *udev = serial->dev; struct usb_interface *interface = serial->interface; - struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc; + struct usb_endpoint_descriptor *ep_desc; unsigned num_endpoints; - int i = 0; + unsigned i; num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints); + if (!num_endpoints) + return; + /* NOTE: some customers have programmed FT232R/FT245R devices * with an endpoint size of 0 - not good. In this case, we * want to override the endpoint descriptor setting and use a @@ -1372,7 +1595,7 @@ static void ftdi_set_max_packet_size(struct usb_serial_port *port) } /* set max packet size based on descriptor */ - priv->max_packet_size = ep_desc->wMaxPacketSize; + priv->max_packet_size = usb_endpoint_maxp(ep_desc); dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size); } @@ -1384,8 +1607,8 @@ static void ftdi_set_max_packet_size(struct usb_serial_port *port) * *************************************************************************** */ -static ssize_t show_latency_timer(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t latency_timer_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct usb_serial_port *port = to_usb_serial_port(dev); struct ftdi_private *priv = usb_get_serial_port_data(port); @@ -1395,16 +1618,15 @@ static ssize_t show_latency_timer(struct device *dev, return sprintf(buf, "%i\n", priv->latency); } - /* Write a new value of the latency timer, in units of milliseconds. */ -static ssize_t store_latency_timer(struct device *dev, - struct device_attribute *attr, const char *valbuf, - size_t count) +static ssize_t latency_timer_store(struct device *dev, + struct device_attribute *attr, + const char *valbuf, size_t count) { struct usb_serial_port *port = to_usb_serial_port(dev); struct ftdi_private *priv = usb_get_serial_port_data(port); int v = simple_strtoul(valbuf, NULL, 10); - int rv = 0; + int rv; priv->latency = v; rv = write_latency_timer(port); @@ -1412,6 +1634,7 @@ static ssize_t store_latency_timer(struct device *dev, return -EIO; return count; } +static DEVICE_ATTR_RW(latency_timer); /* Write an event character directly to the FTDI register. The ASCII value is in the low 8 bits, with the enable bit in the 9th bit. */ @@ -1421,29 +1644,24 @@ static ssize_t store_event_char(struct device *dev, struct usb_serial_port *port = to_usb_serial_port(dev); struct ftdi_private *priv = usb_get_serial_port_data(port); struct usb_device *udev = port->serial->dev; - char buf[1]; int v = simple_strtoul(valbuf, NULL, 10); - int rv = 0; + int rv; - dbg("%s: setting event char = %i", __func__, v); + dev_dbg(&port->dev, "%s: setting event char = %i\n", __func__, v); rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), FTDI_SIO_SET_EVENT_CHAR_REQUEST, FTDI_SIO_SET_EVENT_CHAR_REQUEST_TYPE, v, priv->interface, - buf, 0, WDR_TIMEOUT); - + NULL, 0, WDR_TIMEOUT); if (rv < 0) { - dbg("Unable to write event character: %i", rv); + dev_dbg(&port->dev, "Unable to write event character: %i\n", rv); return -EIO; } return count; } - -static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, - store_latency_timer); static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); static int create_sysfs_attrs(struct usb_serial_port *port) @@ -1451,19 +1669,19 @@ static int create_sysfs_attrs(struct usb_serial_port *port) struct ftdi_private *priv = usb_get_serial_port_data(port); int retval = 0; - dbg("%s", __func__); - /* XXX I've no idea if the original SIO supports the event_char * sysfs parameter, so I'm playing it safe. */ if (priv->chip_type != SIO) { - dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); + dev_dbg(&port->dev, "sysfs attributes for %s\n", ftdi_chip_name[priv->chip_type]); retval = device_create_file(&port->dev, &dev_attr_event_char); if ((!retval) && (priv->chip_type == FT232BM || priv->chip_type == FT2232C || priv->chip_type == FT232RL || priv->chip_type == FT2232H || - priv->chip_type == FT4232H)) { + priv->chip_type == FT4232H || + priv->chip_type == FT232H || + priv->chip_type == FTX)) { retval = device_create_file(&port->dev, &dev_attr_latency_timer); } @@ -1475,8 +1693,6 @@ static void remove_sysfs_attrs(struct usb_serial_port *port) { struct ftdi_private *priv = usb_get_serial_port_data(port); - dbg("%s", __func__); - /* XXX see create_sysfs_attrs */ if (priv->chip_type != SIO) { device_remove_file(&port->dev, &dev_attr_event_char); @@ -1484,7 +1700,9 @@ static void remove_sysfs_attrs(struct usb_serial_port *port) priv->chip_type == FT2232C || priv->chip_type == FT232RL || priv->chip_type == FT2232H || - priv->chip_type == FT4232H) { + priv->chip_type == FT4232H || + priv->chip_type == FT232H || + priv->chip_type == FTX) { device_remove_file(&port->dev, &dev_attr_latency_timer); } } @@ -1521,52 +1739,24 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) struct ftdi_sio_quirk *quirk = usb_get_serial_data(port->serial); - dbg("%s", __func__); - priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); - if (!priv) { - dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, - sizeof(struct ftdi_private)); + if (!priv) return -ENOMEM; - } - kref_init(&priv->kref); - spin_lock_init(&priv->tx_lock); - init_waitqueue_head(&priv->delta_msr_wait); - /* This will push the characters through immediately rather - than queue a task to deliver them */ + mutex_init(&priv->cfg_lock); + priv->flags = ASYNC_LOW_LATENCY; if (quirk && quirk->port_probe) quirk->port_probe(priv); - /* Increase the size of read buffers */ - kfree(port->bulk_in_buffer); - port->bulk_in_buffer = kmalloc(BUFSZ, GFP_KERNEL); - if (!port->bulk_in_buffer) { - kfree(priv); - return -ENOMEM; - } - if (port->read_urb) { - port->read_urb->transfer_buffer = port->bulk_in_buffer; - port->read_urb->transfer_buffer_length = BUFSZ; - } - - priv->port = port; - - /* Free port's existing write urb and transfer buffer. */ - if (port->write_urb) { - usb_free_urb(port->write_urb); - port->write_urb = NULL; - } - kfree(port->bulk_out_buffer); - port->bulk_out_buffer = NULL; - usb_set_serial_port_data(port, priv); ftdi_determine_type(port); ftdi_set_max_packet_size(port); - read_latency_timer(port); + if (read_latency_timer(port) < 0) + priv->latency = 16; + write_latency_timer(port); create_sysfs_attrs(port); return 0; } @@ -1576,29 +1766,26 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) /* Called from usbserial:serial_probe */ static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) { - dbg("%s", __func__); - priv->flags |= ASYNC_SPD_CUST; priv->custom_divisor = 77; priv->force_baud = 38400; -} /* ftdi_USB_UIRT_setup */ +} /* Setup for the HE-TIRA1 device, which requires hardwired * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) { - dbg("%s", __func__); - priv->flags |= ASYNC_SPD_CUST; priv->custom_divisor = 240; priv->force_baud = 38400; priv->force_rtscts = 1; -} /* ftdi_HE_TIRA1_setup */ +} /* * Module parameter to control latency timer for NDI FTDI-based USB devices. - * If this value is not set in modprobe.conf.local its value will be set to 1ms. + * If this value is not set in /etc/modprobe.d/ its value will be set + * to 1ms. */ static int ndi_latency_timer = 1; @@ -1611,21 +1798,20 @@ static int ftdi_NDI_device_setup(struct usb_serial *serial) { struct usb_device *udev = serial->dev; int latency = ndi_latency_timer; - int rv = 0; - char buf[1]; if (latency == 0) latency = 1; if (latency > 99) latency = 99; - dbg("%s setting NDI device latency to %d", __func__, latency); - dev_info(&udev->dev, "NDI device with a latency value of %d", latency); + dev_dbg(&udev->dev, "%s setting NDI device latency to %d\n", __func__, latency); + dev_info(&udev->dev, "NDI device with a latency value of %d\n", latency); - rv = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), + /* FIXME: errors are not returned */ + usb_control_msg(udev, usb_sndctrlpipe(udev, 0), FTDI_SIO_SET_LATENCY_TIMER_REQUEST, FTDI_SIO_SET_LATENCY_TIMER_REQUEST_TYPE, - latency, 0, buf, 0, WDR_TIMEOUT); + latency, 0, NULL, 0, WDR_TIMEOUT); return 0; } @@ -1639,8 +1825,6 @@ static int ftdi_jtag_probe(struct usb_serial *serial) struct usb_device *udev = serial->dev; struct usb_interface *interface = serial->interface; - dbg("%s", __func__); - if (interface == udev->actconfig->interface[0]) { dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n"); @@ -1650,6 +1834,38 @@ static int ftdi_jtag_probe(struct usb_serial *serial) return 0; } +static int ftdi_8u2232c_probe(struct usb_serial *serial) +{ + struct usb_device *udev = serial->dev; + + if ((udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems")) || + (udev->product && !strcmp(udev->product, "BeagleBone/XDS100V2"))) + return ftdi_jtag_probe(serial); + + return 0; +} + +/* + * First two ports on JTAG adaptors using an FT4232 such as STMicroelectronics's + * ST Micro Connect Lite are reserved for JTAG or other non-UART interfaces and + * can be accessed from userspace. + * The next two ports are enabled as UARTs by default, where port 2 is + * a conventional RS-232 UART. + */ +static int ftdi_stmclite_probe(struct usb_serial *serial) +{ + struct usb_device *udev = serial->dev; + struct usb_interface *interface = serial->interface; + + if (interface == udev->actconfig->interface[0] || + interface == udev->actconfig->interface[1]) { + dev_info(&udev->dev, "Ignoring serial port reserved for JTAG\n"); + return -ENODEV; + } + + return 0; +} + /* * The Matrix Orbital VK204-25-USB has an invalid IN endpoint. * We have to correct it if we want to read from it. @@ -1668,69 +1884,28 @@ static int ftdi_mtxorb_hack_setup(struct usb_serial *serial) return 0; } -static void ftdi_sio_priv_release(struct kref *k) -{ - struct ftdi_private *priv = container_of(k, struct ftdi_private, kref); - - kfree(priv); -} - static int ftdi_sio_port_remove(struct usb_serial_port *port) { struct ftdi_private *priv = usb_get_serial_port_data(port); - dbg("%s", __func__); - remove_sysfs_attrs(port); - kref_put(&priv->kref, ftdi_sio_priv_release); + kfree(priv); return 0; } -static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags) -{ - struct urb *urb = port->read_urb; - struct usb_serial *serial = port->serial; - int result; - - usb_fill_bulk_urb(urb, serial->dev, - usb_rcvbulkpipe(serial->dev, - port->bulk_in_endpointAddress), - urb->transfer_buffer, - urb->transfer_buffer_length, - ftdi_read_bulk_callback, port); - result = usb_submit_urb(urb, mem_flags); - if (result) - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", - __func__, result); - return result; -} - static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) -{ /* ftdi_open */ +{ struct usb_device *dev = port->serial->dev; struct ftdi_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - - int result = 0; - char buf[1]; /* Needed for the usb_control_msg I think */ - - dbg("%s", __func__); - - spin_lock_irqsave(&priv->tx_lock, flags); - priv->tx_bytes = 0; - spin_unlock_irqrestore(&priv->tx_lock, flags); - - write_latency_timer(port); /* No error checking for this (will get errors later anyway) */ /* See ftdi_sio.h for description of what is reset */ usb_control_msg(dev, usb_sndctrlpipe(dev, 0), FTDI_SIO_RESET_REQUEST, FTDI_SIO_RESET_REQUEST_TYPE, FTDI_SIO_RESET_SIO, - priv->interface, buf, 0, WDR_TIMEOUT); + priv->interface, NULL, 0, WDR_TIMEOUT); /* Termios defaults are set by usb_serial_init. We don't change port->tty->termios - this would lose speed settings, etc. @@ -1738,69 +1913,33 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) /* ftdi_set_termios will send usb control messages */ if (tty) - ftdi_set_termios(tty, port, tty->termios); - - /* Not throttled */ - spin_lock_irqsave(&port->lock, flags); - port->throttled = 0; - port->throttle_req = 0; - spin_unlock_irqrestore(&port->lock, flags); - - /* Start reading from the device */ - result = ftdi_submit_read_urb(port, GFP_KERNEL); - if (!result) - kref_get(&priv->kref); - - return result; -} /* ftdi_open */ + ftdi_set_termios(tty, port, NULL); + return usb_serial_generic_open(tty, port); +} static void ftdi_dtr_rts(struct usb_serial_port *port, int on) { struct ftdi_private *priv = usb_get_serial_port_data(port); - char buf[1]; - mutex_lock(&port->serial->disc_mutex); - if (!port->serial->disconnected) { - /* Disable flow control */ - if (!on && usb_control_msg(port->serial->dev, + /* Disable flow control */ + if (!on) { + if (usb_control_msg(port->serial->dev, usb_sndctrlpipe(port->serial->dev, 0), FTDI_SIO_SET_FLOW_CTRL_REQUEST, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, - 0, priv->interface, buf, 0, + 0, priv->interface, NULL, 0, WDR_TIMEOUT) < 0) { - dev_err(&port->dev, "error from flowcontrol urb\n"); + dev_err(&port->dev, "error from flowcontrol urb\n"); } - /* drop RTS and DTR */ - if (on) - set_mctrl(port, TIOCM_DTR | TIOCM_RTS); - else - clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } - mutex_unlock(&port->serial->disc_mutex); + /* drop RTS and DTR */ + if (on) + set_mctrl(port, TIOCM_DTR | TIOCM_RTS); + else + clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } -/* - * usbserial:__serial_close only calls ftdi_close if the point is open - * - * This only gets called when it is the last close - * - * - */ - -static void ftdi_close(struct usb_serial_port *port) -{ /* ftdi_close */ - struct ftdi_private *priv = usb_get_serial_port_data(port); - - dbg("%s", __func__); - - /* shutdown our bulk read */ - usb_kill_urb(port->read_urb); - kref_put(&priv->kref, ftdi_sio_priv_release); -} /* ftdi_close */ - - - /* The SIO requires the first byte to have: * B0 1 * B1 0 @@ -1808,226 +1947,52 @@ static void ftdi_close(struct usb_serial_port *port) * * The new devices do not require this byte */ -static int ftdi_write(struct tty_struct *tty, struct usb_serial_port *port, - const unsigned char *buf, int count) -{ /* ftdi_write */ - struct ftdi_private *priv = usb_get_serial_port_data(port); - struct urb *urb; - unsigned char *buffer; - int data_offset ; /* will be 1 for the SIO and 0 otherwise */ - int status; - int transfer_size; +static int ftdi_prepare_write_buffer(struct usb_serial_port *port, + void *dest, size_t size) +{ + struct ftdi_private *priv; + int count; unsigned long flags; - dbg("%s port %d, %d bytes", __func__, port->number, count); - - if (count == 0) { - dbg("write request of 0 bytes"); - return 0; - } - spin_lock_irqsave(&priv->tx_lock, flags); - if (priv->tx_outstanding_urbs > URB_UPPER_LIMIT) { - spin_unlock_irqrestore(&priv->tx_lock, flags); - dbg("%s - write limit hit\n", __func__); - return 0; - } - priv->tx_outstanding_urbs++; - spin_unlock_irqrestore(&priv->tx_lock, flags); - - data_offset = priv->write_offset; - dbg("data_offset set to %d", data_offset); - - /* Determine total transfer size */ - transfer_size = count; - if (data_offset > 0) { - /* Original sio needs control bytes too... */ - transfer_size += (data_offset * - ((count + (priv->max_packet_size - 1 - data_offset)) / - (priv->max_packet_size - data_offset))); - } - - buffer = kmalloc(transfer_size, GFP_ATOMIC); - if (!buffer) { - dev_err(&port->dev, - "%s ran out of kernel memory for urb ...\n", __func__); - count = -ENOMEM; - goto error_no_buffer; - } - - urb = usb_alloc_urb(0, GFP_ATOMIC); - if (!urb) { - dev_err(&port->dev, "%s - no more free urbs\n", __func__); - count = -ENOMEM; - goto error_no_urb; - } + priv = usb_get_serial_port_data(port); - /* Copy data */ - if (data_offset > 0) { - /* Original sio requires control byte at start of - each packet. */ - int user_pktsz = priv->max_packet_size - data_offset; - int todo = count; - unsigned char *first_byte = buffer; - const unsigned char *current_position = buf; - - while (todo > 0) { - if (user_pktsz > todo) - user_pktsz = todo; - /* Write the control byte at the front of the packet*/ - *first_byte = 1 | ((user_pktsz) << 2); - /* Copy data for packet */ - memcpy(first_byte + data_offset, - current_position, user_pktsz); - first_byte += user_pktsz + data_offset; - current_position += user_pktsz; - todo -= user_pktsz; + if (priv->chip_type == SIO) { + unsigned char *buffer = dest; + int i, len, c; + + count = 0; + spin_lock_irqsave(&port->lock, flags); + for (i = 0; i < size - 1; i += priv->max_packet_size) { + len = min_t(int, size - i, priv->max_packet_size) - 1; + c = kfifo_out(&port->write_fifo, &buffer[i + 1], len); + if (!c) + break; + port->icount.tx += c; + buffer[i] = (c << 2) + 1; + count += c + 1; } + spin_unlock_irqrestore(&port->lock, flags); } else { - /* No control byte required. */ - /* Copy in the data to send */ - memcpy(buffer, buf, count); - } - - usb_serial_debug_data(debug, &port->dev, __func__, - transfer_size, buffer); - - /* fill the buffer and send it */ - usb_fill_bulk_urb(urb, port->serial->dev, - usb_sndbulkpipe(port->serial->dev, - port->bulk_out_endpointAddress), - buffer, transfer_size, - ftdi_write_bulk_callback, port); - - status = usb_submit_urb(urb, GFP_ATOMIC); - if (status) { - dev_err(&port->dev, - "%s - failed submitting write urb, error %d\n", - __func__, status); - count = status; - goto error; - } else { - spin_lock_irqsave(&priv->tx_lock, flags); - priv->tx_outstanding_bytes += count; - priv->tx_bytes += count; - spin_unlock_irqrestore(&priv->tx_lock, flags); + count = kfifo_out_locked(&port->write_fifo, dest, size, + &port->lock); + port->icount.tx += count; } - /* we are done with this urb, so let the host driver - * really free it when it is finished with it */ - usb_free_urb(urb); - - dbg("%s write returning: %d", __func__, count); - return count; -error: - usb_free_urb(urb); -error_no_urb: - kfree(buffer); -error_no_buffer: - spin_lock_irqsave(&priv->tx_lock, flags); - priv->tx_outstanding_urbs--; - spin_unlock_irqrestore(&priv->tx_lock, flags); return count; -} /* ftdi_write */ - - -/* This function may get called when the device is closed */ - -static void ftdi_write_bulk_callback(struct urb *urb) -{ - unsigned long flags; - struct usb_serial_port *port = urb->context; - struct ftdi_private *priv; - int data_offset; /* will be 1 for the SIO and 0 otherwise */ - unsigned long countback; - int status = urb->status; - - /* free up the transfer buffer, as usb_free_urb() does not do this */ - kfree(urb->transfer_buffer); - - dbg("%s - port %d", __func__, port->number); - - priv = usb_get_serial_port_data(port); - if (!priv) { - dbg("%s - bad port private data pointer - exiting", __func__); - return; - } - /* account for transferred data */ - countback = urb->transfer_buffer_length; - data_offset = priv->write_offset; - if (data_offset > 0) { - /* Subtract the control bytes */ - countback -= (data_offset * DIV_ROUND_UP(countback, priv->max_packet_size)); - } - spin_lock_irqsave(&priv->tx_lock, flags); - --priv->tx_outstanding_urbs; - priv->tx_outstanding_bytes -= countback; - spin_unlock_irqrestore(&priv->tx_lock, flags); - - if (status) { - dbg("nonzero write bulk status received: %d", status); - } - - usb_serial_port_softint(port); -} /* ftdi_write_bulk_callback */ - - -static int ftdi_write_room(struct tty_struct *tty) -{ - struct usb_serial_port *port = tty->driver_data; - struct ftdi_private *priv = usb_get_serial_port_data(port); - int room; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); - - spin_lock_irqsave(&priv->tx_lock, flags); - if (priv->tx_outstanding_urbs < URB_UPPER_LIMIT) { - /* - * We really can take anything the user throws at us - * but let's pick a nice big number to tell the tty - * layer that we have lots of free space - */ - room = 2048; - } else { - room = 0; - } - spin_unlock_irqrestore(&priv->tx_lock, flags); - return room; } -static int ftdi_chars_in_buffer(struct tty_struct *tty) -{ - struct usb_serial_port *port = tty->driver_data; - struct ftdi_private *priv = usb_get_serial_port_data(port); - int buffered; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); +#define FTDI_RS_ERR_MASK (FTDI_RS_BI | FTDI_RS_PE | FTDI_RS_FE | FTDI_RS_OE) - spin_lock_irqsave(&priv->tx_lock, flags); - buffered = (int)priv->tx_outstanding_bytes; - spin_unlock_irqrestore(&priv->tx_lock, flags); - if (buffered < 0) { - dev_err(&port->dev, "%s outstanding tx bytes is negative!\n", - __func__); - buffered = 0; - } - return buffered; -} - -static int ftdi_process_packet(struct tty_struct *tty, - struct usb_serial_port *port, struct ftdi_private *priv, - char *packet, int len) +static int ftdi_process_packet(struct usb_serial_port *port, + struct ftdi_private *priv, char *packet, int len) { int i; char status; char flag; char *ch; - dbg("%s - port %d", __func__, port->number); - if (len < 2) { - dbg("malformed packet"); + dev_dbg(&port->dev, "malformed packet\n"); return 0; } @@ -2036,107 +2001,98 @@ static int ftdi_process_packet(struct tty_struct *tty, are only processed once. */ status = packet[0] & FTDI_STATUS_B0_MASK; if (status != priv->prev_status) { - priv->diff_status |= status ^ priv->prev_status; - wake_up_interruptible(&priv->delta_msr_wait); + char diff_status = status ^ priv->prev_status; + + if (diff_status & FTDI_RS0_CTS) + port->icount.cts++; + if (diff_status & FTDI_RS0_DSR) + port->icount.dsr++; + if (diff_status & FTDI_RS0_RI) + port->icount.rng++; + if (diff_status & FTDI_RS0_RLSD) { + struct tty_struct *tty; + + port->icount.dcd++; + tty = tty_port_tty_get(&port->port); + if (tty) + usb_serial_handle_dcd_change(port, tty, + status & FTDI_RS0_RLSD); + tty_kref_put(tty); + } + + wake_up_interruptible(&port->port.delta_msr_wait); priv->prev_status = status; } - /* - * Although the device uses a bitmask and hence can have multiple - * errors on a packet - the order here sets the priority the error is - * returned to the tty layer. - */ flag = TTY_NORMAL; - if (packet[1] & FTDI_RS_OE) { - flag = TTY_OVERRUN; - dbg("OVERRRUN error"); - } - if (packet[1] & FTDI_RS_BI) { - flag = TTY_BREAK; - dbg("BREAK received"); - usb_serial_handle_break(port); - } - if (packet[1] & FTDI_RS_PE) { - flag = TTY_PARITY; - dbg("PARITY error"); - } - if (packet[1] & FTDI_RS_FE) { - flag = TTY_FRAME; - dbg("FRAMING error"); + if (packet[1] & FTDI_RS_ERR_MASK) { + /* Break takes precedence over parity, which takes precedence + * over framing errors */ + if (packet[1] & FTDI_RS_BI) { + flag = TTY_BREAK; + port->icount.brk++; + usb_serial_handle_break(port); + } else if (packet[1] & FTDI_RS_PE) { + flag = TTY_PARITY; + port->icount.parity++; + } else if (packet[1] & FTDI_RS_FE) { + flag = TTY_FRAME; + port->icount.frame++; + } + /* Overrun is special, not associated with a char */ + if (packet[1] & FTDI_RS_OE) { + port->icount.overrun++; + tty_insert_flip_char(&port->port, 0, TTY_OVERRUN); + } } + /* save if the transmitter is empty or not */ + if (packet[1] & FTDI_RS_TEMT) + priv->transmit_empty = 1; + else + priv->transmit_empty = 0; + len -= 2; if (!len) return 0; /* status only */ + port->icount.rx += len; ch = packet + 2; - if (!(port->console && port->sysrq) && flag == TTY_NORMAL) - tty_insert_flip_string(tty, ch, len); - else { + if (port->port.console && port->sysrq) { for (i = 0; i < len; i++, ch++) { - if (!usb_serial_handle_sysrq_char(tty, port, *ch)) - tty_insert_flip_char(tty, *ch, flag); + if (!usb_serial_handle_sysrq_char(port, *ch)) + tty_insert_flip_char(&port->port, *ch, flag); } + } else { + tty_insert_flip_string_fixed_flag(&port->port, ch, flag, len); } + return len; } -static void ftdi_process_read(struct usb_serial_port *port) +static void ftdi_process_read_urb(struct urb *urb) { - struct urb *urb = port->read_urb; - struct tty_struct *tty; + struct usb_serial_port *port = urb->context; struct ftdi_private *priv = usb_get_serial_port_data(port); char *data = (char *)urb->transfer_buffer; int i; int len; int count = 0; - tty = tty_port_tty_get(&port->port); - if (!tty) - return; - for (i = 0; i < urb->actual_length; i += priv->max_packet_size) { len = min_t(int, urb->actual_length - i, priv->max_packet_size); - count += ftdi_process_packet(tty, port, priv, &data[i], len); + count += ftdi_process_packet(port, priv, &data[i], len); } if (count) - tty_flip_buffer_push(tty); - tty_kref_put(tty); -} - -static void ftdi_read_bulk_callback(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); - - if (urb->status) { - dbg("%s - nonzero read bulk status received: %d", - __func__, urb->status); - return; - } - - usb_serial_debug_data(debug, &port->dev, __func__, - urb->actual_length, urb->transfer_buffer); - ftdi_process_read(port); - - spin_lock_irqsave(&port->lock, flags); - port->throttled = port->throttle_req; - if (!port->throttled) { - spin_unlock_irqrestore(&port->lock, flags); - ftdi_submit_read_urb(port, GFP_ATOMIC); - } else - spin_unlock_irqrestore(&port->lock, flags); + tty_flip_buffer_push(&port->port); } static void ftdi_break_ctl(struct tty_struct *tty, int break_state) { struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); - __u16 urb_value = 0; - char buf[1]; + __u16 urb_value; /* break_state = -1 to turn on break, and 0 to turn off break */ /* see drivers/char/tty_io.c to see it used */ @@ -2152,62 +2108,106 @@ static void ftdi_break_ctl(struct tty_struct *tty, int break_state) FTDI_SIO_SET_DATA_REQUEST, FTDI_SIO_SET_DATA_REQUEST_TYPE, urb_value , priv->interface, - buf, 0, WDR_TIMEOUT) < 0) { - dev_err(&port->dev, "%s FAILED to enable/disable break state " - "(state was %d)\n", __func__, break_state); + NULL, 0, WDR_TIMEOUT) < 0) { + dev_err(&port->dev, "%s FAILED to enable/disable break state (state was %d)\n", + __func__, break_state); } - dbg("%s break state is %d - urb is %d", __func__, - break_state, urb_value); + dev_dbg(&port->dev, "%s break state is %d - urb is %d\n", __func__, + break_state, urb_value); } +static bool ftdi_tx_empty(struct usb_serial_port *port) +{ + unsigned char buf[2]; + int ret; + + ret = ftdi_get_modem_status(port, buf); + if (ret == 2) { + if (!(buf[1] & FTDI_RS_TEMT)) + return false; + } + + return true; +} /* old_termios contains the original termios settings and tty->termios contains * the new setting to be used * WARNING: set_termios calls this with old_termios in kernel space */ - static void ftdi_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) -{ /* ftdi_termios */ +{ struct usb_device *dev = port->serial->dev; + struct device *ddev = &port->dev; struct ftdi_private *priv = usb_get_serial_port_data(port); - struct ktermios *termios = tty->termios; + struct ktermios *termios = &tty->termios; unsigned int cflag = termios->c_cflag; __u16 urb_value; /* will hold the new flags */ - char buf[1]; /* Perhaps I should dynamically alloc this? */ /* Added for xon/xoff support */ unsigned int iflag = termios->c_iflag; unsigned char vstop; unsigned char vstart; - dbg("%s", __func__); - /* Force baud rate if this device requires it, unless it is set to B0. */ if (priv->force_baud && ((termios->c_cflag & CBAUD) != B0)) { - dbg("%s: forcing baud rate for this device", __func__); + dev_dbg(ddev, "%s: forcing baud rate for this device\n", __func__); tty_encode_baud_rate(tty, priv->force_baud, priv->force_baud); } /* Force RTS-CTS if this device requires it. */ if (priv->force_rtscts) { - dbg("%s: forcing rtscts for this device", __func__); + dev_dbg(ddev, "%s: forcing rtscts for this device\n", __func__); termios->c_cflag |= CRTSCTS; } + /* + * All FTDI UART chips are limited to CS7/8. We shouldn't pretend to + * support CS5/6 and revert the CSIZE setting instead. + * + * CS5 however is used to control some smartcard readers which abuse + * this limitation to switch modes. Original FTDI chips fall back to + * eight data bits. + * + * TODO: Implement a quirk to only allow this with mentioned + * readers. One I know of (Argolis Smartreader V1) + * returns "USB smartcard server" as iInterface string. + * The vendor didn't bother with a custom VID/PID of + * course. + */ + if (C_CSIZE(tty) == CS6) { + dev_warn(ddev, "requested CSIZE setting not supported\n"); + + termios->c_cflag &= ~CSIZE; + if (old_termios) + termios->c_cflag |= old_termios->c_cflag & CSIZE; + else + termios->c_cflag |= CS8; + } + cflag = termios->c_cflag; - /* FIXME -For this cut I don't care if the line is really changing or - not - so just do the change regardless - should be able to - compare old_termios and tty->termios */ + if (!old_termios) + goto no_skip; + + if (old_termios->c_cflag == termios->c_cflag + && old_termios->c_ispeed == termios->c_ispeed + && old_termios->c_ospeed == termios->c_ospeed) + goto no_c_cflag_changes; + /* NOTE These routines can get interrupted by ftdi_sio_read_bulk_callback - need to examine what this means - don't see any problems yet */ + if ((old_termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)) == + (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB))) + goto no_data_parity_stop_changes; + +no_skip: /* Set number of data bits, parity, stop bits */ urb_value = 0; @@ -2225,15 +2225,19 @@ static void ftdi_set_termios(struct tty_struct *tty, } else { urb_value |= FTDI_SIO_SET_DATA_PARITY_NONE; } - if (cflag & CSIZE) { - switch (cflag & CSIZE) { - case CS5: urb_value |= 5; dbg("Setting CS5"); break; - case CS6: urb_value |= 6; dbg("Setting CS6"); break; - case CS7: urb_value |= 7; dbg("Setting CS7"); break; - case CS8: urb_value |= 8; dbg("Setting CS8"); break; - default: - dev_err(&port->dev, "CSIZE was set but not CS5-CS8\n"); - } + switch (cflag & CSIZE) { + case CS5: + dev_dbg(ddev, "Setting CS5 quirk\n"); + break; + case CS7: + urb_value |= 7; + dev_dbg(ddev, "Setting CS7\n"); + break; + default: + case CS8: + urb_value |= 8; + dev_dbg(ddev, "Setting CS8\n"); + break; } /* This is needed by the break command since it uses the same command @@ -2244,49 +2248,49 @@ static void ftdi_set_termios(struct tty_struct *tty, FTDI_SIO_SET_DATA_REQUEST, FTDI_SIO_SET_DATA_REQUEST_TYPE, urb_value , priv->interface, - buf, 0, WDR_SHORT_TIMEOUT) < 0) { - dev_err(&port->dev, "%s FAILED to set " - "databits/stopbits/parity\n", __func__); + NULL, 0, WDR_SHORT_TIMEOUT) < 0) { + dev_err(ddev, "%s FAILED to set databits/stopbits/parity\n", + __func__); } /* Now do the baudrate */ +no_data_parity_stop_changes: if ((cflag & CBAUD) == B0) { /* Disable flow control */ if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), FTDI_SIO_SET_FLOW_CTRL_REQUEST, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 0, priv->interface, - buf, 0, WDR_TIMEOUT) < 0) { - dev_err(&port->dev, - "%s error from disable flowcontrol urb\n", + NULL, 0, WDR_TIMEOUT) < 0) { + dev_err(ddev, "%s error from disable flowcontrol urb\n", __func__); } /* Drop RTS and DTR */ clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); } else { /* set the baudrate determined before */ + mutex_lock(&priv->cfg_lock); if (change_speed(tty, port)) - dev_err(&port->dev, "%s urb failed to set baudrate\n", - __func__); + dev_err(ddev, "%s urb failed to set baudrate\n", __func__); + mutex_unlock(&priv->cfg_lock); /* Ensure RTS and DTR are raised when baudrate changed from 0 */ - if (!old_termios || (old_termios->c_cflag & CBAUD) == B0) + if (old_termios && (old_termios->c_cflag & CBAUD) == B0) set_mctrl(port, TIOCM_DTR | TIOCM_RTS); } /* Set flow control */ /* Note device also supports DTR/CD (ugh) and Xon/Xoff in hardware */ +no_c_cflag_changes: if (cflag & CRTSCTS) { - dbg("%s Setting to CRTSCTS flow control", __func__); + dev_dbg(ddev, "%s Setting to CRTSCTS flow control\n", __func__); if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), FTDI_SIO_SET_FLOW_CTRL_REQUEST, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 0 , (FTDI_SIO_RTS_CTS_HS | priv->interface), - buf, 0, WDR_TIMEOUT) < 0) { - dev_err(&port->dev, - "urb failed to set to rts/cts flow control\n"); + NULL, 0, WDR_TIMEOUT) < 0) { + dev_err(ddev, "urb failed to set to rts/cts flow control\n"); } - } else { /* * Xon/Xoff code @@ -2296,8 +2300,8 @@ static void ftdi_set_termios(struct tty_struct *tty, * code is executed. */ if (iflag & IXOFF) { - dbg("%s request to enable xonxoff iflag=%04x", - __func__, iflag); + dev_dbg(ddev, "%s request to enable xonxoff iflag=%04x\n", + __func__, iflag); /* Try to enable the XON/XOFF on the ftdi_sio * Set the vstart and vstop -- could have been done up * above where a lot of other dereferencing is done but @@ -2314,7 +2318,7 @@ static void ftdi_set_termios(struct tty_struct *tty, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, urb_value , (FTDI_SIO_XON_XOFF_HS | priv->interface), - buf, 0, WDR_TIMEOUT) < 0) { + NULL, 0, WDR_TIMEOUT) < 0) { dev_err(&port->dev, "urb failed to set to " "xon/xoff flow control\n"); } @@ -2322,41 +2326,43 @@ static void ftdi_set_termios(struct tty_struct *tty, /* else clause to only run if cflag ! CRTSCTS and iflag * ! XOFF. CHECKME Assuming XON/XOFF handled by tty * stack - not by device */ - dbg("%s Turning off hardware flow control", __func__); + dev_dbg(ddev, "%s Turning off hardware flow control\n", __func__); if (usb_control_msg(dev, usb_sndctrlpipe(dev, 0), FTDI_SIO_SET_FLOW_CTRL_REQUEST, FTDI_SIO_SET_FLOW_CTRL_REQUEST_TYPE, 0, priv->interface, - buf, 0, WDR_TIMEOUT) < 0) { - dev_err(&port->dev, - "urb failed to clear flow control\n"); + NULL, 0, WDR_TIMEOUT) < 0) { + dev_err(ddev, "urb failed to clear flow control\n"); } } - } - return; } -static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) +/* + * Get modem-control status. + * + * Returns the number of status bytes retrieved (device dependant), or + * negative error code. + */ +static int ftdi_get_modem_status(struct usb_serial_port *port, + unsigned char status[2]) { - struct usb_serial_port *port = tty->driver_data; struct ftdi_private *priv = usb_get_serial_port_data(port); - unsigned char buf[2]; + unsigned char *buf; + int len; int ret; - dbg("%s TIOCMGET", __func__); + buf = kmalloc(2, GFP_KERNEL); + if (!buf) + return -ENOMEM; + /* + * The 8U232AM returns a two byte value (the SIO a 1 byte value) in + * the same format as the data returned from the in point. + */ switch (priv->chip_type) { case SIO: - /* Request the status from the device */ - ret = usb_control_msg(port->serial->dev, - usb_rcvctrlpipe(port->serial->dev, 0), - FTDI_SIO_GET_MODEM_STATUS_REQUEST, - FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, - 0, 0, - buf, 1, WDR_TIMEOUT); - if (ret < 0) - return ret; + len = 1; break; case FT8U232AM: case FT232BM: @@ -2364,45 +2370,73 @@ static int ftdi_tiocmget(struct tty_struct *tty, struct file *file) case FT232RL: case FT2232H: case FT4232H: - /* the 8U232AM returns a two byte value (the sio is a 1 byte - value) - in the same format as the data returned from the in - point */ - ret = usb_control_msg(port->serial->dev, - usb_rcvctrlpipe(port->serial->dev, 0), - FTDI_SIO_GET_MODEM_STATUS_REQUEST, - FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, - 0, priv->interface, - buf, 2, WDR_TIMEOUT); - if (ret < 0) - return ret; + case FT232H: + case FTX: + len = 2; break; default: - return -EFAULT; + ret = -EFAULT; + goto out; } - return (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | - (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | - (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | - (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | + ret = usb_control_msg(port->serial->dev, + usb_rcvctrlpipe(port->serial->dev, 0), + FTDI_SIO_GET_MODEM_STATUS_REQUEST, + FTDI_SIO_GET_MODEM_STATUS_REQUEST_TYPE, + 0, priv->interface, + buf, len, WDR_TIMEOUT); + if (ret < 0) { + dev_err(&port->dev, "failed to get modem status: %d\n", ret); + ret = usb_translate_errors(ret); + goto out; + } + + status[0] = buf[0]; + if (ret > 1) + status[1] = buf[1]; + else + status[1] = 0; + + dev_dbg(&port->dev, "%s - 0x%02x%02x\n", __func__, status[0], + status[1]); +out: + kfree(buf); + + return ret; +} + +static int ftdi_tiocmget(struct tty_struct *tty) +{ + struct usb_serial_port *port = tty->driver_data; + struct ftdi_private *priv = usb_get_serial_port_data(port); + unsigned char buf[2]; + int ret; + + ret = ftdi_get_modem_status(port, buf); + if (ret < 0) + return ret; + + ret = (buf[0] & FTDI_SIO_DSR_MASK ? TIOCM_DSR : 0) | + (buf[0] & FTDI_SIO_CTS_MASK ? TIOCM_CTS : 0) | + (buf[0] & FTDI_SIO_RI_MASK ? TIOCM_RI : 0) | + (buf[0] & FTDI_SIO_RLSD_MASK ? TIOCM_CD : 0) | priv->last_dtr_rts; + + return ret; } -static int ftdi_tiocmset(struct tty_struct *tty, struct file *file, +static int ftdi_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { struct usb_serial_port *port = tty->driver_data; - dbg("%s TIOCMSET", __func__); + return update_mctrl(port, set, clear); } - -static int ftdi_ioctl(struct tty_struct *tty, struct file *file, +static int ftdi_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct usb_serial_port *port = tty->driver_data; - struct ftdi_private *priv = usb_get_serial_port_data(port); - - dbg("%s cmd 0x%04x", __func__, cmd); /* Based on code from acm.c and others */ switch (cmd) { @@ -2414,142 +2448,21 @@ static int ftdi_ioctl(struct tty_struct *tty, struct file *file, case TIOCSSERIAL: /* sets serial port data */ return set_serial_info(tty, port, (struct serial_struct __user *) arg); - - /* - * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change - * - mask passed in arg for lines of interest - * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking) - * Caller should use TIOCGICOUNT to see which one it was. - * - * This code is borrowed from linux/drivers/char/serial.c - */ - case TIOCMIWAIT: - while (priv != NULL) { - interruptible_sleep_on(&priv->delta_msr_wait); - /* see if a signal did it */ - if (signal_pending(current)) - return -ERESTARTSYS; - else { - char diff = priv->diff_status; - - if (diff == 0) - return -EIO; /* no change => error */ - - /* Consume all events */ - priv->diff_status = 0; - - /* Return 0 if caller wanted to know about - these bits */ - if (((arg & TIOCM_RNG) && (diff & FTDI_RS0_RI)) || - ((arg & TIOCM_DSR) && (diff & FTDI_RS0_DSR)) || - ((arg & TIOCM_CD) && (diff & FTDI_RS0_RLSD)) || - ((arg & TIOCM_CTS) && (diff & FTDI_RS0_CTS))) { - return 0; - } - /* - * Otherwise caller can't care less about what - * happened,and so we continue to wait for more - * events. - */ - } - } - return 0; + case TIOCSERGETLSR: + return get_lsr_info(port, (struct serial_struct __user *)arg); + break; default: break; } - /* This is not necessarily an error - turns out the higher layers - * will do some ioctls themselves (see comment above) - */ - dbg("%s arg not supported - it was 0x%04x - check /usr/include/asm/ioctls.h", __func__, cmd); - return -ENOIOCTLCMD; -} - -static void ftdi_throttle(struct tty_struct *tty) -{ - struct usb_serial_port *port = tty->driver_data; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); - - spin_lock_irqsave(&port->lock, flags); - port->throttle_req = 1; - spin_unlock_irqrestore(&port->lock, flags); -} - -void ftdi_unthrottle(struct tty_struct *tty) -{ - struct usb_serial_port *port = tty->driver_data; - int was_throttled; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); - - spin_lock_irqsave(&port->lock, flags); - was_throttled = port->throttled; - port->throttled = port->throttle_req = 0; - spin_unlock_irqrestore(&port->lock, flags); - - /* Resubmit urb if throttled and open. */ - if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags)) - ftdi_submit_read_urb(port, GFP_KERNEL); -} - -static int __init ftdi_init(void) -{ - int retval; - - dbg("%s", __func__); - if (vendor > 0 && product > 0) { - /* Add user specified VID/PID to reserved element of table. */ - int i; - for (i = 0; id_table_combined[i].idVendor; i++) - ; - id_table_combined[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; - id_table_combined[i].idVendor = vendor; - id_table_combined[i].idProduct = product; - } - retval = usb_serial_register(&ftdi_sio_device); - if (retval) - goto failed_sio_register; - retval = usb_register(&ftdi_driver); - if (retval) - goto failed_usb_register; - - printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" - DRIVER_DESC "\n"); - return 0; -failed_usb_register: - usb_serial_deregister(&ftdi_sio_device); -failed_sio_register: - return retval; -} - - -static void __exit ftdi_exit(void) -{ - - dbg("%s", __func__); - - usb_deregister(&ftdi_driver); - usb_serial_deregister(&ftdi_sio_device); + return -ENOIOCTLCMD; } - -module_init(ftdi_init); -module_exit(ftdi_exit); +module_usb_serial_driver(serial_drivers, id_table_combined); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); -module_param(debug, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(debug, "Debug enabled or not"); -module_param(vendor, ushort, 0); -MODULE_PARM_DESC(vendor, "User specified vendor ID (default=" - __MODULE_STRING(FTDI_VID)")"); -module_param(product, ushort, 0); -MODULE_PARM_DESC(product, "User specified product ID"); - module_param(ndi_latency_timer, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ndi_latency_timer, "NDI device latency timer override"); |