diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 13:41:04 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 13:41:04 -0800 |
commit | 21eaab6d19ed43e82ed39c8deb7f192134fb4a0e (patch) | |
tree | d995205afdcb7f47462bcd28067dc0c4ab0b7b02 /drivers/tty | |
parent | 74e1a2a39355b2d3ae8c60c78d8add162c6d7183 (diff) | |
parent | 9e17df37d710f8998e9cb10a548304fe33d4a5c2 (diff) |
Merge tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial patches from Greg Kroah-Hartman:
"Here's the big tty/serial driver patches for 3.9-rc1.
More tty port rework and fixes from Jiri here, as well as lots of
individual serial driver updates and fixes.
All of these have been in the linux-next tree for a while."
* tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits)
tty: mxser: improve error handling in mxser_probe() and mxser_module_init()
serial: imx: fix uninitialized variable warning
serial: tegra: assume CONFIG_OF
TTY: do not update atime/mtime on read/write
lguest: select CONFIG_TTY to build properly.
ARM defconfigs: add missing inclusions of linux/platform_device.h
fb/exynos: include platform_device.h
ARM: sa1100/assabet: include platform_device.h directly
serial: imx: Fix recursive locking bug
pps: Fix build breakage from decoupling pps from tty
tty: Remove ancient hardpps()
pps: Additional cleanups in uart_handle_dcd_change
pps: Move timestamp read into PPS code proper
pps: Don't crash the machine when exiting will do
pps: Fix a use-after free bug when unregistering a source.
pps: Use pps_lookup_dev to reduce ldisc coupling
pps: Add pps_lookup_dev() function
tty: serial: uartlite: Support uartlite on big and little endian systems
tty: serial: uartlite: Fix sparse and checkpatch warnings
serial/arc-uart: Miscll DT related updates (Grant's review comments)
...
Fix up trivial conflicts, mostly just due to the TTY config option
clashing with the EXPERIMENTAL removal.
Diffstat (limited to 'drivers/tty')
115 files changed, 5932 insertions, 1673 deletions
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig index 0ecf22b6a38e..978db344bda0 100644 --- a/drivers/tty/Kconfig +++ b/drivers/tty/Kconfig @@ -1,3 +1,14 @@ +config TTY + bool "Enable TTY" if EXPERT + default y + ---help--- + Allows you to remove TTY support which can save space, and + blocks features that require TTY from inclusion in the kernel. + TTY is required for any text terminals or serial port + communication. Most users should leave this enabled. + +if TTY + config VT bool "Virtual terminal" if EXPERT depends on !S390 && !UML @@ -388,3 +399,24 @@ config PPC_EARLY_DEBUG_EHV_BC_HANDLE If the number you specify is not a valid byte channel handle, then there simply will be no early console output. This is true also if you don't boot under a hypervisor at all. + +config GOLDFISH_TTY + tristate "Goldfish TTY Driver" + depends on GOLDFISH + help + Console and system TTY driver for the Goldfish virtual platform. + +config DA_TTY + bool "DA TTY" + depends on METAG_DA + select SERIAL_NONSTANDARD + help + This enables a TTY on a Dash channel. + +config DA_CONSOLE + bool "DA Console" + depends on DA_TTY + help + This enables a console on a Dash channel. + +endif # TTY diff --git a/drivers/tty/Makefile b/drivers/tty/Makefile index 2953059530e4..6b78399bc7c9 100644 --- a/drivers/tty/Makefile +++ b/drivers/tty/Makefile @@ -1,4 +1,4 @@ -obj-y += tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o \ +obj-$(CONFIG_TTY) += tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o \ tty_buffer.o tty_port.o tty_mutex.o obj-$(CONFIG_LEGACY_PTYS) += pty.o obj-$(CONFIG_UNIX98_PTYS) += pty.o @@ -27,5 +27,7 @@ obj-$(CONFIG_SYNCLINK_GT) += synclink_gt.o obj-$(CONFIG_SYNCLINKMP) += synclinkmp.o obj-$(CONFIG_SYNCLINK) += synclink.o obj-$(CONFIG_PPC_EPAPR_HV_BYTECHAN) += ehv_bytechan.o +obj-$(CONFIG_GOLDFISH_TTY) += goldfish.o +obj-$(CONFIG_DA_TTY) += metag_da.o obj-y += ipwireless/ diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 9d7d00cdfecb..fc700342d43f 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -251,7 +251,6 @@ static void receive_chars(struct serial_state *info) { int status; int serdatr; - struct tty_struct *tty = info->tport.tty; unsigned char ch, flag; struct async_icount *icount; int oe = 0; @@ -314,7 +313,7 @@ static void receive_chars(struct serial_state *info) #endif flag = TTY_BREAK; if (info->tport.flags & ASYNC_SAK) - do_SAK(tty); + do_SAK(info->tport.tty); } else if (status & UART_LSR_PE) flag = TTY_PARITY; else if (status & UART_LSR_FE) @@ -328,10 +327,10 @@ static void receive_chars(struct serial_state *info) oe = 1; } } - tty_insert_flip_char(tty, ch, flag); + tty_insert_flip_char(&info->tport, ch, flag); if (oe == 1) - tty_insert_flip_char(tty, 0, TTY_OVERRUN); - tty_flip_buffer_push(tty); + tty_insert_flip_char(&info->tport, 0, TTY_OVERRUN); + tty_flip_buffer_push(&info->tport); out: return; } @@ -394,11 +393,6 @@ static void check_modem_status(struct serial_state *info) icount->dsr++; if (dstatus & SER_DCD) { icount->dcd++; -#ifdef CONFIG_HARD_PPS - if ((port->flags & ASYNC_HARDPPS_CD) && - !(status & SER_DCD)) - hardpps(); -#endif } if (dstatus & SER_CTS) icount->cts++; @@ -1099,7 +1093,7 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state, state->custom_divisor = new_serial.custom_divisor; port->close_delay = new_serial.close_delay * HZ/100; port->closing_wait = new_serial.closing_wait * HZ/100; - tty->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + port->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0; check_and_exit: if (port->flags & ASYNC_INITIALIZED) { @@ -1528,7 +1522,7 @@ static int rs_open(struct tty_struct *tty, struct file * filp) if (serial_paranoia_check(info, tty->name, "rs_open")) return -ENODEV; - tty->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + port->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0; retval = startup(tty, info); if (retval) { diff --git a/drivers/tty/bfin_jtag_comm.c b/drivers/tty/bfin_jtag_comm.c index 1cfcdbf1d0cc..a93a424873fa 100644 --- a/drivers/tty/bfin_jtag_comm.c +++ b/drivers/tty/bfin_jtag_comm.c @@ -95,18 +95,16 @@ bfin_jc_emudat_manager(void *arg) /* if incoming data is ready, eat it */ if (bfin_read_DBGSTAT() & EMUDIF) { - if (tty != NULL) { - uint32_t emudat = bfin_read_emudat(); - if (inbound_len == 0) { - pr_debug("incoming length: 0x%08x\n", emudat); - inbound_len = emudat; - } else { - size_t num_chars = (4 <= inbound_len ? 4 : inbound_len); - pr_debug(" incoming data: 0x%08x (pushing %zu)\n", emudat, num_chars); - inbound_len -= num_chars; - tty_insert_flip_string(tty, (unsigned char *)&emudat, num_chars); - tty_flip_buffer_push(tty); - } + uint32_t emudat = bfin_read_emudat(); + if (inbound_len == 0) { + pr_debug("incoming length: 0x%08x\n", emudat); + inbound_len = emudat; + } else { + size_t num_chars = (4 <= inbound_len ? 4 : inbound_len); + pr_debug(" incoming data: 0x%08x (pushing %zu)\n", emudat, num_chars); + inbound_len -= num_chars; + tty_insert_flip_string(&port, (unsigned char *)&emudat, num_chars); + tty_flip_buffer_push(&port); } } diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c index b09c8d1f9a66..345bd0e0884e 100644 --- a/drivers/tty/cyclades.c +++ b/drivers/tty/cyclades.c @@ -441,7 +441,7 @@ static void cyy_chip_rx |