amiserial.c (adc8d746caa67fff4b53ba3e5163a6cbacc3b523) amiserial.c (89c8d91e31f267703e365593f6bfebb9f6d2ad01)
1/*
2 * Serial driver for the amiga builtin port.
3 *
4 * This code was created by taking serial.c version 4.30 from kernel
5 * release 2.3.22, replacing all hardware related stuff with the
6 * corresponding amiga hardware actions, and removing all irrelevant
7 * code. As a consequence, it uses many of the constants and names
8 * associated with the registers and bits of 16550 compatible UARTS -

--- 1019 unchanged lines hidden (view full) ---

1028static int get_serial_info(struct tty_struct *tty, struct serial_state *state,
1029 struct serial_struct __user * retinfo)
1030{
1031 struct serial_struct tmp;
1032
1033 if (!retinfo)
1034 return -EFAULT;
1035 memset(&tmp, 0, sizeof(tmp));
1/*
2 * Serial driver for the amiga builtin port.
3 *
4 * This code was created by taking serial.c version 4.30 from kernel
5 * release 2.3.22, replacing all hardware related stuff with the
6 * corresponding amiga hardware actions, and removing all irrelevant
7 * code. As a consequence, it uses many of the constants and names
8 * associated with the registers and bits of 16550 compatible UARTS -

--- 1019 unchanged lines hidden (view full) ---

1028static int get_serial_info(struct tty_struct *tty, struct serial_state *state,
1029 struct serial_struct __user * retinfo)
1030{
1031 struct serial_struct tmp;
1032
1033 if (!retinfo)
1034 return -EFAULT;
1035 memset(&tmp, 0, sizeof(tmp));
1036 tty_lock();
1036 tty_lock(tty);
1037 tmp.line = tty->index;
1038 tmp.port = state->port;
1039 tmp.flags = state->tport.flags;
1040 tmp.xmit_fifo_size = state->xmit_fifo_size;
1041 tmp.baud_base = state->baud_base;
1042 tmp.close_delay = state->tport.close_delay;
1043 tmp.closing_wait = state->tport.closing_wait;
1044 tmp.custom_divisor = state->custom_divisor;
1037 tmp.line = tty->index;
1038 tmp.port = state->port;
1039 tmp.flags = state->tport.flags;
1040 tmp.xmit_fifo_size = state->xmit_fifo_size;
1041 tmp.baud_base = state->baud_base;
1042 tmp.close_delay = state->tport.close_delay;
1043 tmp.closing_wait = state->tport.closing_wait;
1044 tmp.custom_divisor = state->custom_divisor;
1045 tty_unlock();
1045 tty_unlock(tty);
1046 if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
1047 return -EFAULT;
1048 return 0;
1049}
1050
1051static int set_serial_info(struct tty_struct *tty, struct serial_state *state,
1052 struct serial_struct __user * new_info)
1053{
1054 struct tty_port *port = &state->tport;
1055 struct serial_struct new_serial;
1056 bool change_spd;
1057 int retval = 0;
1058
1059 if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
1060 return -EFAULT;
1061
1046 if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
1047 return -EFAULT;
1048 return 0;
1049}
1050
1051static int set_serial_info(struct tty_struct *tty, struct serial_state *state,
1052 struct serial_struct __user * new_info)
1053{
1054 struct tty_port *port = &state->tport;
1055 struct serial_struct new_serial;
1056 bool change_spd;
1057 int retval = 0;
1058
1059 if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
1060 return -EFAULT;
1061
1062 tty_lock();
1062 tty_lock(tty);
1063 change_spd = ((new_serial.flags ^ port->flags) & ASYNC_SPD_MASK) ||
1064 new_serial.custom_divisor != state->custom_divisor;
1065 if (new_serial.irq || new_serial.port != state->port ||
1066 new_serial.xmit_fifo_size != state->xmit_fifo_size) {
1063 change_spd = ((new_serial.flags ^ port->flags) & ASYNC_SPD_MASK) ||
1064 new_serial.custom_divisor != state->custom_divisor;
1065 if (new_serial.irq || new_serial.port != state->port ||
1066 new_serial.xmit_fifo_size != state->xmit_fifo_size) {
1067 tty_unlock();
1067 tty_unlock(tty);
1068 return -EINVAL;
1069 }
1070
1071 if (!serial_isroot()) {
1072 if ((new_serial.baud_base != state->baud_base) ||
1073 (new_serial.close_delay != port->close_delay) ||
1074 (new_serial.xmit_fifo_size != state->xmit_fifo_size) ||
1075 ((new_serial.flags & ~ASYNC_USR_MASK) !=
1076 (port->flags & ~ASYNC_USR_MASK))) {
1068 return -EINVAL;
1069 }
1070
1071 if (!serial_isroot()) {
1072 if ((new_serial.baud_base != state->baud_base) ||
1073 (new_serial.close_delay != port->close_delay) ||
1074 (new_serial.xmit_fifo_size != state->xmit_fifo_size) ||
1075 ((new_serial.flags & ~ASYNC_USR_MASK) !=
1076 (port->flags & ~ASYNC_USR_MASK))) {
1077 tty_unlock();
1077 tty_unlock(tty);
1078 return -EPERM;
1079 }
1080 port->flags = ((port->flags & ~ASYNC_USR_MASK) |
1081 (new_serial.flags & ASYNC_USR_MASK));
1082 state->custom_divisor = new_serial.custom_divisor;
1083 goto check_and_exit;
1084 }
1085
1086 if (new_serial.baud_base < 9600) {
1078 return -EPERM;
1079 }
1080 port->flags = ((port->flags & ~ASYNC_USR_MASK) |
1081 (new_serial.flags & ASYNC_USR_MASK));
1082 state->custom_divisor = new_serial.custom_divisor;
1083 goto check_and_exit;
1084 }
1085
1086 if (new_serial.baud_base < 9600) {
1087 tty_unlock();
1087 tty_unlock(tty);
1088 return -EINVAL;
1089 }
1090
1091 /*
1092 * OK, past this point, all the error checking has been done.
1093 * At this point, we start making changes.....
1094 */
1095

--- 15 unchanged lines hidden (view full) ---

1111 if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1112 tty->alt_speed = 230400;
1113 if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1114 tty->alt_speed = 460800;
1115 change_speed(tty, state, NULL);
1116 }
1117 } else
1118 retval = startup(tty, state);
1088 return -EINVAL;
1089 }
1090
1091 /*
1092 * OK, past this point, all the error checking has been done.
1093 * At this point, we start making changes.....
1094 */
1095

--- 15 unchanged lines hidden (view full) ---

1111 if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
1112 tty->alt_speed = 230400;
1113 if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
1114 tty->alt_speed = 460800;
1115 change_speed(tty, state, NULL);
1116 }
1117 } else
1118 retval = startup(tty, state);
1119 tty_unlock();
1119 tty_unlock(tty);
1120 return retval;
1121}
1122
1123
1124/*
1125 * get_lsr_info - get line status register info
1126 *
1127 * Purpose: Let user call ioctl() to get info when the UART physically

--- 756 unchanged lines hidden --- 		1120 return retval;
1121}
1122
1123
1124/*
1125 * get_lsr_info - get line status register info
1126 *
1127 * Purpose: Let user call ioctl() to get info when the UART physically

--- 756 unchanged lines hidden ---