Hello,
Should the out: label be moved up one line?
julia
---------- Forwarded message ----------
Date: Tue, 23 Jul 2019 10:54:22 +0800
From: kbuild test robot <lkp@xxxxxxxxx>
To: kbuild@xxxxxx
Cc: Julia Lawall <julia.lawall@xxxxxxx>
Subject: Re: [PATCH v4 4/6] usb: gadget: u_serial: allow more console gadget
ports
CC: kbuild-all@xxxxxx
In-Reply-To: <0f82c726dcf2d4c7819a7ccfb7be250b031884f7.1563808218.git.mirq-linux@xxxxxxxxxxxx>
References: <0f82c726dcf2d4c7819a7ccfb7be250b031884f7.1563808218.git.mirq-linux@xxxxxxxxxxxx>
TO: "Micha?? Miros??aw" <mirq-linux@xxxxxxxxxxxx>
CC: linux-usb@xxxxxxxxxxxxxxx
CC: Felipe Balbi <balbi@xxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Ladislav Michl <ladis@xxxxxxxxxxxxxx>
Hi "Micha??,
I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[cannot apply to v5.3-rc1 next-20190722]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Micha-Miros-aw/usb-gadget-u_serial-console-improvements/20190723-084448
:::::: branch date: 2 hours ago
:::::: commit date: 2 hours ago
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Reported-by: Julia Lawall <julia.lawall@xxxxxxx>
>> drivers/usb/gadget/function/u_serial.c:1128:1-7: preceding lock on line 1118
# https://github.com/0day-ci/linux/commit/a4ada1ad2a00fcc75fb461bd7733cb02c74bdd39
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout a4ada1ad2a00fcc75fb461bd7733cb02c74bdd39
vim +1128 drivers/usb/gadget/function/u_serial.c
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1112
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1113 ssize_t gserial_get_console(unsigned char port_num, char *page)
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1114 {
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1115 struct gs_port *port;
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1116 ssize_t ret = -ENXIO;
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1117
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 @1118 mutex_lock(&ports[port_num].lock);
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1119 port = ports[port_num].port;
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1120
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1121 if (WARN_ON(port == NULL))
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1122 goto out;
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1123
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1124 ret = sprintf(page, "%u\n", !!port->console);
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1125
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1126 mutex_unlock(&ports[port_num].lock);
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1127 out:
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 @1128 return ret;
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1129 }
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1130 EXPORT_SYMBOL_GPL(gserial_get_console);
a4ada1ad2a00fcc drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1131
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1132 #else
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1133
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1134 static int gs_console_connect(struct gs_port *port)
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1135 {
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1136 return 0;
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1137 }
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1138
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1139 static void gs_console_disconnect(struct gs_port *port)
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1140 {
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1141 }
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1142
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1143 static int gs_console_init(struct gs_port *port)
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1144 {
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1145 return -ENOSYS;
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1146 }
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1147
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1148 static void gs_console_exit(struct gs_port *port)
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1149 {
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1150 }
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1151
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1152 #endif
a5beaaf39455e43 drivers/usb/gadget/function/u_serial.c Baolin Wang 2015-11-21 1153
c3c04b2945eccd8 drivers/usb/gadget/u_serial.c Benoit Goby 2012-05-10 1154 static int
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1155 gs_port_alloc(unsigned port_num, struct usb_cdc_line_coding *coding)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1156 {
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1157 struct gs_port *port;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1158 int ret = 0;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1159
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1160 mutex_lock(&ports[port_num].lock);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1161 if (ports[port_num].port) {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1162 ret = -EBUSY;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1163 goto out;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1164 }
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1165
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1166 port = kzalloc(sizeof(struct gs_port), GFP_KERNEL);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1167 if (port == NULL) {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1168 ret = -ENOMEM;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1169 goto out;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1170 }
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1171
266e37efbc28b05 drivers/usb/gadget/u_serial.c Jiri Slaby 2012-04-02 1172 tty_port_init(&port->port);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1173 spin_lock_init(&port->port_lock);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1174 init_waitqueue_head(&port->drain_wait);
b140dfe622ca23b drivers/usb/gadget/function/u_serial.c Peter Hurley 2015-10-10 1175 init_waitqueue_head(&port->close_wait);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1176
8b4c62aef6f611d drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2018-12-16 1177 INIT_DELAYED_WORK(&port->push, gs_rx_push);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1178
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1179 INIT_LIST_HEAD(&port->read_pool);
937ef73d5075997 drivers/usb/gadget/u_serial.c David Brownell 2008-07-07 1180 INIT_LIST_HEAD(&port->read_queue);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1181 INIT_LIST_HEAD(&port->write_pool);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1182
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1183 port->port_num = port_num;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1184 port->port_line_coding = *coding;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1185
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1186 ports[port_num].port = port;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1187 out:
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1188 mutex_unlock(&ports[port_num].lock);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1189 return ret;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1190 }
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1191
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1192 static int gs_closed(struct gs_port *port)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1193 {
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1194 int cond;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1195
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1196 spin_lock_irq(&port->port_lock);
266e37efbc28b05 drivers/usb/gadget/u_serial.c Jiri Slaby 2012-04-02 1197 cond = (port->port.count == 0) && !port->openclose;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1198 spin_unlock_irq(&port->port_lock);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1199 return cond;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1200 }
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1201
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1202 static void gserial_free_port(struct gs_port *port)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1203 {
8b4c62aef6f611d drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2018-12-16 1204 cancel_delayed_work_sync(&port->push);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1205 /* wait for old opens to finish */
b140dfe622ca23b drivers/usb/gadget/function/u_serial.c Peter Hurley 2015-10-10 1206 wait_event(port->close_wait, gs_closed(port));
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1207 WARN_ON(port->port_usb != NULL);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1208 tty_port_destroy(&port->port);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1209 kfree(port);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1210 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1211
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1212 void gserial_free_line(unsigned char port_num)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1213 {
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1214 struct gs_port *port;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1215
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1216 mutex_lock(&ports[port_num].lock);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1217 if (WARN_ON(!ports[port_num].port)) {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1218 mutex_unlock(&ports[port_num].lock);
ac90e36592ea517 drivers/usb/gadget/u_serial.c David Brownell 2008-07-01 1219 return;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1220 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1221 port = ports[port_num].port;
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1222 gs_console_exit(port);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1223 ports[port_num].port = NULL;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1224 mutex_unlock(&ports[port_num].lock);
ac90e36592ea517 drivers/usb/gadget/u_serial.c David Brownell 2008-07-01 1225
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1226 gserial_free_port(port);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1227 tty_unregister_device(gs_tty_driver, port_num);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1228 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1229 EXPORT_SYMBOL_GPL(gserial_free_line);
937ef73d5075997 drivers/usb/gadget/u_serial.c David Brownell 2008-07-07 1230
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1231 int gserial_alloc_line_no_console(unsigned char *line_num)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1232 {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1233 struct usb_cdc_line_coding coding;
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1234 struct gs_port *port;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1235 struct device *tty_dev;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1236 int ret;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1237 int port_num;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1238
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1239 coding.dwDTERate = cpu_to_le32(9600);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1240 coding.bCharFormat = 8;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1241 coding.bParityType = USB_CDC_NO_PARITY;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1242 coding.bDataBits = USB_CDC_1_STOP_BITS;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1243
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1244 for (port_num = 0; port_num < MAX_U_SERIAL_PORTS; port_num++) {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1245 ret = gs_port_alloc(port_num, &coding);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1246 if (ret == -EBUSY)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1247 continue;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1248 if (ret)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1249 return ret;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1250 break;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1251 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1252 if (ret)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1253 return ret;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1254
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1255 /* ... and sysfs class devices, so mdev/udev make /dev/ttyGS* */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1256
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1257 port = ports[port_num].port;
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1258 tty_dev = tty_port_register_device(&port->port,
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1259 gs_tty_driver, port_num, NULL);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1260 if (IS_ERR(tty_dev)) {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1261 pr_err("%s: failed to register tty for port %d, err %ld\n",
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1262 __func__, port_num, PTR_ERR(tty_dev));
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1263
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1264 ret = PTR_ERR(tty_dev);
5586af934be6dec drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1265 mutex_lock(&ports[port_num].lock);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1266 ports[port_num].port = NULL;
5586af934be6dec drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1267 mutex_unlock(&ports[port_num].lock);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1268 gserial_free_port(port);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1269 goto err;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1270 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1271 *line_num = port_num;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1272 err:
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1273 return ret;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1274 }
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1275 EXPORT_SYMBOL_GPL(gserial_alloc_line_no_console);
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1276
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1277 int gserial_alloc_line(unsigned char *line_num)
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1278 {
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1279 int ret = gserial_alloc_line_no_console(line_num);
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1280
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1281 if (!ret && !*line_num)
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1282 gs_console_init(ports[*line_num].port);
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1283
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1284 return ret;
816831c26b5158e drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1285 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1286 EXPORT_SYMBOL_GPL(gserial_alloc_line);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1287
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1288 /**
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1289 * gserial_connect - notify TTY I/O glue that USB link is active
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1290 * @gser: the function, set up with endpoints and descriptors
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1291 * @port_num: which port is active
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1292 * Context: any (usually from irq)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1293 *
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1294 * This is called activate endpoints and let the TTY layer know that
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1295 * the connection is active ... not unlike "carrier detect". It won't
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1296 * necessarily start I/O queues; unless the TTY is held open by any
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1297 * task, there would be no point. However, the endpoints will be
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1298 * activated so the USB host can perform I/O, subject to basic USB
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1299 * hardware flow control.
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1300 *
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1301 * Caller needs to have set up the endpoints and USB function in @dev
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1302 * before calling this, as well as the appropriate (speed-specific)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1303 * endpoint descriptors, and also have allocate @port_num by calling
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1304 * @gserial_alloc_line().
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1305 *
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1306 * Returns negative errno or zero.
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1307 * On success, ep->driver_data will be overwritten.
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1308 */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1309 int gserial_connect(struct gserial *gser, u8 port_num)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1310 {
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1311 struct gs_port *port;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1312 unsigned long flags;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1313 int status;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1314
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1315 if (port_num >= MAX_U_SERIAL_PORTS)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1316 return -ENXIO;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1317
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1318 port = ports[port_num].port;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1319 if (!port) {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1320 pr_err("serial line %d not allocated.\n", port_num);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1321 return -EINVAL;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1322 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1323 if (port->port_usb) {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1324 pr_err("serial line %d is in use.\n", port_num);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1325 return -EBUSY;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1326 }
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1327
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1328 /* activate the endpoints */
72c973dd2b01b21 drivers/usb/gadget/u_serial.c Tatyana Brokhman 2011-06-28 1329 status = usb_ep_enable(gser->in);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1330 if (status < 0)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1331 return status;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1332 gser->in->driver_data = port;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1333
72c973dd2b01b21 drivers/usb/gadget/u_serial.c Tatyana Brokhman 2011-06-28 1334 status = usb_ep_enable(gser->out);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1335 if (status < 0)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1336 goto fail_out;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1337 gser->out->driver_data = port;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1338
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1339 /* then tell the tty glue that I/O can work */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1340 spin_lock_irqsave(&port->port_lock, flags);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1341 gser->ioport = port;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1342 port->port_usb = gser;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1343
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1344 /* REVISIT unclear how best to handle this state...
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1345 * we don't really couple it with the Linux TTY.
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1346 */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1347 gser->port_line_coding = port->port_line_coding;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1348
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1349 /* REVISIT if waiting on "carrier detect", signal. */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1350
1f1ba11b6494705 drivers/usb/gadget/u_serial.c David Brownell 2008-08-06 1351 /* if it's already open, start I/O ... and notify the serial
1f1ba11b6494705 drivers/usb/gadget/u_serial.c David Brownell 2008-08-06 1352 * protocol about open/close status (connect/disconnect).
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1353 */
266e37efbc28b05 drivers/usb/gadget/u_serial.c Jiri Slaby 2012-04-02 1354 if (port->port.count) {
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1355 pr_debug("gserial_connect: start ttyGS%d\n", port->port_num);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1356 gs_start_io(port);
1f1ba11b6494705 drivers/usb/gadget/u_serial.c David Brownell 2008-08-06 1357 if (gser->connect)
1f1ba11b6494705 drivers/usb/gadget/u_serial.c David Brownell 2008-08-06 1358 gser->connect(gser);
1f1ba11b6494705 drivers/usb/gadget/u_serial.c David Brownell 2008-08-06 1359 } else {
1f1ba11b6494705 drivers/usb/gadget/u_serial.c David Brownell 2008-08-06 1360 if (gser->disconnect)
1f1ba11b6494705 drivers/usb/gadget/u_serial.c David Brownell 2008-08-06 1361 gser->disconnect(gser);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1362 }
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1363
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1364 status = gs_console_connect(port);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1365 spin_unlock_irqrestore(&port->port_lock, flags);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1366
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1367 return status;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1368
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1369 fail_out:
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1370 usb_ep_disable(gser->in);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1371 return status;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1372 }
3249ca22c088c28 drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1373 EXPORT_SYMBOL_GPL(gserial_connect);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1374 /**
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1375 * gserial_disconnect - notify TTY I/O glue that USB link is inactive
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1376 * @gser: the function, on which gserial_connect() was called
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1377 * Context: any (usually from irq)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1378 *
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1379 * This is called to deactivate endpoints and let the TTY layer know
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1380 * that the connection went inactive ... not unlike "hangup".
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1381 *
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1382 * On return, the state is as if gserial_connect() had never been called;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1383 * there is no active USB I/O on these endpoints.
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1384 */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1385 void gserial_disconnect(struct gserial *gser)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1386 {
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1387 struct gs_port *port = gser->ioport;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1388 unsigned long flags;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1389
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1390 if (!port)
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1391 return;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1392
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1393 /* tell the TTY glue not to do I/O here any more */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1394 spin_lock_irqsave(&port->port_lock, flags);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1395
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1396 gs_console_disconnect(port);
e273a647995aac7 drivers/usb/gadget/function/u_serial.c Micha?? Miros??aw 2019-07-22 1397
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1398 /* REVISIT as above: how best to track this? */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1399 port->port_line_coding = gser->port_line_coding;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1400
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1401 port->port_usb = NULL;
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1402 gser->ioport = NULL;
266e37efbc28b05 drivers/usb/gadget/u_serial.c Jiri Slaby 2012-04-02 1403 if (port->port.count > 0 || port->openclose) {
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1404 wake_up_interruptible(&port->drain_wait);
35f95fd7f234d2b drivers/usb/gadget/u_serial.c Jiri Slaby 2012-04-02 1405 if (port->port.tty)
35f95fd7f234d2b drivers/usb/gadget/u_serial.c Jiri Slaby 2012-04-02 1406 tty_hangup(port->port.tty);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1407 }
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1408 spin_unlock_irqrestore(&port->port_lock, flags);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1409
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1410 /* disable endpoints, aborting down any active I/O */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1411 usb_ep_disable(gser->out);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1412 usb_ep_disable(gser->in);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1413
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1414 /* finally, free any unused/unusable I/O buffers */
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1415 spin_lock_irqsave(&port->port_lock, flags);
266e37efbc28b05 drivers/usb/gadget/u_serial.c Jiri Slaby 2012-04-02 1416 if (port->port.count == 0 && !port->openclose)
a622ee9972aa42d drivers/usb/gadget/function/u_serial.c Lu Baolu 2017-11-28 1417 kfifo_free(&port->port_write_buf);
28609d4083bcd48 drivers/usb/gadget/u_serial.c Jim Sung 2010-11-04 1418 gs_free_requests(gser->out, &port->read_pool, NULL);
28609d4083bcd48 drivers/usb/gadget/u_serial.c Jim Sung 2010-11-04 1419 gs_free_requests(gser->out, &port->read_queue, NULL);
28609d4083bcd48 drivers/usb/gadget/u_serial.c Jim Sung 2010-11-04 1420 gs_free_requests(gser->in, &port->write_pool, NULL);
28609d4083bcd48 drivers/usb/gadget/u_serial.c Jim Sung 2010-11-04 1421
28609d4083bcd48 drivers/usb/gadget/u_serial.c Jim Sung 2010-11-04 1422 port->read_allocated = port->read_started =
28609d4083bcd48 drivers/usb/gadget/u_serial.c Jim Sung 2010-11-04 1423 port->write_allocated = port->write_started = 0;
28609d4083bcd48 drivers/usb/gadget/u_serial.c Jim Sung 2010-11-04 1424
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1425 spin_unlock_irqrestore(&port->port_lock, flags);
c1dca562be8ada6 drivers/usb/gadget/u_serial.c David Brownell 2008-06-19 1426 }
3249ca22c088c28 drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1427 EXPORT_SYMBOL_GPL(gserial_disconnect);
3249ca22c088c28 drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1428
38b3ad5655e7b2c drivers/usb/gadget/u_serial.c Felipe Balbi 2013-01-18 1429 static int userial_init(void)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1430 {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1431 unsigned i;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1432 int status;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1433
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1434 gs_tty_driver = alloc_tty_driver(MAX_U_SERIAL_PORTS);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1435 if (!gs_tty_driver)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1436 return -ENOMEM;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1437
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1438 gs_tty_driver->driver_name = "g_serial";
c572a217d1b8120 drivers/usb/gadget/function/u_serial.c Richard Leitner 2014-08-21 1439 gs_tty_driver->name = "ttyGS";
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1440 /* uses dynamically assigned dev_t values */
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1441
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1442 gs_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1443 gs_tty_driver->subtype = SERIAL_TYPE_NORMAL;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1444 gs_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1445 gs_tty_driver->init_termios = tty_std_termios;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1446
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1447 /* 9600-8-N-1 ... matches defaults expected by "usbser.sys" on
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1448 * MS-Windows. Otherwise, most of these flags shouldn't affect
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1449 * anything unless we were to actually hook up to a serial line.
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1450 */
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1451 gs_tty_driver->init_termios.c_cflag =
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1452 B9600 | CS8 | CREAD | HUPCL | CLOCAL;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1453 gs_tty_driver->init_termios.c_ispeed = 9600;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1454 gs_tty_driver->init_termios.c_ospeed = 9600;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1455
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1456 tty_set_operations(gs_tty_driver, &gs_tty_ops);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1457 for (i = 0; i < MAX_U_SERIAL_PORTS; i++)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1458 mutex_init(&ports[i].lock);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1459
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1460 /* export the driver ... */
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1461 status = tty_register_driver(gs_tty_driver);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1462 if (status) {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1463 pr_err("%s: cannot register, err %d\n",
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1464 __func__, status);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1465 goto fail;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1466 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1467
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1468 pr_debug("%s: registered %d ttyGS* device%s\n", __func__,
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1469 MAX_U_SERIAL_PORTS,
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1470 (MAX_U_SERIAL_PORTS == 1) ? "" : "s");
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1471
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1472 return status;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1473 fail:
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1474 put_tty_driver(gs_tty_driver);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1475 gs_tty_driver = NULL;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1476 return status;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1477 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1478 module_init(userial_init);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1479
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1480 static void userial_cleanup(void)
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1481 {
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1482 tty_unregister_driver(gs_tty_driver);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1483 put_tty_driver(gs_tty_driver);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1484 gs_tty_driver = NULL;
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1485 }
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1486 module_exit(userial_cleanup);
19b10a8828a6cdd drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1487
3249ca22c088c28 drivers/usb/gadget/u_serial.c Sebastian Andrzej Siewior 2012-12-23 1488 MODULE_LICENSE("GPL");
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0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
