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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-10 12:10:24 +0900 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-10 12:10:24 +0900 |
commit | 69b7290e51e558e1e9c1c9ee4d5d31a3809f0f03 (patch) | |
tree | f4ad376b3aaf2b68e9066df3885ee8dd297251cb /drivers/usb/class | |
parent | 35a27eab6f94e15fa30f7662af00fbec50526f4a (diff) | |
parent | 206c5f60a3d902bc4b56dab2de3e88de5eb06108 (diff) | |
download | linux-stable-69b7290e51e558e1e9c1c9ee4d5d31a3809f0f03.tar.gz linux-stable-69b7290e51e558e1e9c1c9ee4d5d31a3809f0f03.tar.bz2 linux-stable-69b7290e51e558e1e9c1c9ee4d5d31a3809f0f03.zip |
Merge 3.18-rc4 into usb-next.
This resolves a conflict in drivers/usb/host/Kconfig
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class')
-rw-r--r-- | drivers/usb/class/cdc-acm.c | 25 | ||||
-rw-r--r-- | drivers/usb/class/cdc-acm.h | 2 |
2 files changed, 23 insertions, 4 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index a78a7a4560c8..c74fd3a3f657 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -60,6 +60,9 @@ static struct acm *acm_table[ACM_TTY_MINORS]; static DEFINE_MUTEX(acm_table_lock); +static void acm_tty_set_termios(struct tty_struct *tty, + struct ktermios *termios_old); + /* * acm_table accessors */ @@ -145,8 +148,15 @@ static int acm_ctrl_msg(struct acm *acm, int request, int value, /* devices aren't required to support these requests. * the cdc acm descriptor tells whether they do... */ -#define acm_set_control(acm, control) \ - acm_ctrl_msg(acm, USB_CDC_REQ_SET_CONTROL_LINE_STATE, control, NULL, 0) +static inline int acm_set_control(struct acm *acm, int control) +{ + if (acm->quirks & QUIRK_CONTROL_LINE_STATE) + return -EOPNOTSUPP; + + return acm_ctrl_msg(acm, USB_CDC_REQ_SET_CONTROL_LINE_STATE, + control, NULL, 0); +} + #define acm_set_line(acm, line) \ acm_ctrl_msg(acm, USB_CDC_REQ_SET_LINE_CODING, 0, line, sizeof *(line)) #define acm_send_break(acm, ms) \ @@ -554,6 +564,8 @@ static int acm_port_activate(struct tty_port *port, struct tty_struct *tty) goto error_submit_urb; } + acm_tty_set_termios(tty, NULL); + /* * Unthrottle device in case the TTY was closed while throttled. */ @@ -980,11 +992,12 @@ static void acm_tty_set_termios(struct tty_struct *tty, /* FIXME: Needs to clear unsupported bits in the termios */ acm->clocal = ((termios->c_cflag & CLOCAL) != 0); - if (!newline.dwDTERate) { + if (C_BAUD(tty) == B0) { newline.dwDTERate = acm->line.dwDTERate; newctrl &= ~ACM_CTRL_DTR; - } else + } else if (termios_old && (termios_old->c_cflag & CBAUD) == B0) { newctrl |= ACM_CTRL_DTR; + } if (newctrl != acm->ctrlout) acm_set_control(acm, acm->ctrlout = newctrl); @@ -1312,6 +1325,7 @@ made_compressed_probe: tty_port_init(&acm->port); acm->port.ops = &acm_port_ops; init_usb_anchor(&acm->delayed); + acm->quirks = quirks; buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); if (!buf) { @@ -1679,6 +1693,9 @@ static const struct usb_device_id acm_ids[] = { { USB_DEVICE(0x0572, 0x1328), /* Shiro / Aztech USB MODEM UM-3100 */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, + { USB_DEVICE(0x20df, 0x0001), /* Simtec Electronics Entropy Key */ + .driver_info = QUIRK_CONTROL_LINE_STATE, }, + { USB_DEVICE(0x2184, 0x001c) }, /* GW Instek AFG-2225 */ { USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */ }, /* Motorola H24 HSPA module: */ diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h index 8cd2c4b0b8ff..ffeb3c83941f 100644 --- a/drivers/usb/class/cdc-acm.h +++ b/drivers/usb/class/cdc-acm.h @@ -121,6 +121,7 @@ struct acm { unsigned int throttle_req:1; /* throttle requested */ u8 bInterval; struct usb_anchor delayed; /* writes queued for a device about to be woken */ + unsigned long quirks; }; #define CDC_DATA_INTERFACE_TYPE 0x0a @@ -131,3 +132,4 @@ struct acm { #define NO_CAP_LINE BIT(2) #define NO_DATA_INTERFACE BIT(4) #define IGNORE_DEVICE BIT(5) +#define QUIRK_CONTROL_LINE_STATE BIT(6) |