linux-toradex.git/include/linux/serial.h, branch v5.10-rc3

UAPI: (Scripted) Disintegrate include/linux

2012-10-13T09:46:48+00:00

Signed-off-by: David Howells 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Michael Kerrisk 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones

serial: diminish usage of struct serial_uart_config

2012-09-05T20:15:07+00:00

This structure might have made sense many years ago, but at this
point it is only used in one specific driver, and referenced in
stale comments elsewhere.  Rather than change the sunsu.c driver,
simply move the struct to be within the exclusive domain of that
driver, so it won't get inadvertently picked up and used by other
serial drivers going forward.  The comments referencing the now
driver specific struct are updated accordingly.

Note that 8250.c has a struct that is similar in usage, with the
name serial8250_config; but is 100% independent and untouched here.

Cc: "David S. Miller" 
Signed-off-by: Paul Gortmaker 
Acked-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

tty: move the async flags from the serial code into the tty includes

2012-09-05T20:11:03+00:00

These are used with the tty_port flags which are tty generic so move the
flags into a more sensible place. This then makes it possible to add
helpers such as those suggested by Huang Shijie.

Signed-off-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

serial: delete the MCA specific 8250 support.

2012-05-17T23:02:14+00:00

The support for CONFIG_MCA is being removed, since the 20
year old hardware simply isn't capable of meeting today's
software demands on CPU and memory resources.

This commit removes the MCA specific 8250 UART code.

Cc: Alan Cox 
Cc: linux-serial@vger.kernel.org
Acked-by: Greg Kroah-Hartman 
Signed-off-by: Paul Gortmaker

TTY: serial, simplify ASYNC_USR_MASK

2012-03-08T19:38:50+00:00

By using ASYNC_SPD_MASK instead of the single speed bits.

Signed-off-by: Jiri Slaby 
Signed-off-by: Greg Kroah-Hartman

RS485: fix inconsistencies in the meaning of some variables

2011-11-15T20:13:44+00:00

The crisv10.c and the atmel_serial.c serial drivers intepret the fields of the
serial_rs485 structure in a different way.

In particular, crisv10.c uses SER_RS485_RTS_AFTER_SEND and
SER_RS485_RTS_ON_SEND for the voltage of the RTS pin; atmel_serial.c,
instead, uses these values to know if a delay must be set before and
after sending.  This patch makes the usage of these variables consistent
across all drivers and fixes the Documentation as well.

From now on, SER_RS485_RTS_AFTER_SEND and SER_RS485_RTS_ON_SEND will be
used to set the voltage of the RTS pin (as in the crisv10.c driver); the
delay will be understood by looking only at the value of
delay_rts_before_send and delay_rts_after_send.

Signed-off-by: Claudio Scordino 
Signed-off-by: Darron Black 
Acked-by: Jesper Nilsson 
Acked-by: Nicolas Ferre 
Acked-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

atmel_serial: RS485: receiving enabled when sending data

2011-08-24T22:27:59+00:00

By default the atmel_serial driver in RS485 mode disables receiving data until
all data in the send buffer has been sent. This flag allows to receive data
even whilst sending data.

Signed-off-by: Bernhard Roth 
Signed-off-by: Claudio Scordino 
Acked-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

serial: fix port type conflict between NS16550A & U6_16550A

2010-09-04T00:29:04+00:00

Bug seen by Dr. David Alan Gilbert with sparse

Signed-off-by: Philippe Langlais 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

U6715 16550A serial driver support

2010-08-10T20:47:46+00:00

UART Features extract from STEricsson U6715 data-sheet (arm926 SoC for mobile phone):
* Fully compatible with industry standard 16C550 and 16C450 from various
manufacturers
* RX and TX 64 byte FIFO reduces CPU interrupts
* Full double buffering
* Modem control signals include CTS, RTS, (and DSR, DTR on UART1 only)
* Automatic baud rate selection
* Manual or automatic RTS/CTS smart hardware flow control
* Programmable serial characteristics:
– Baud rate generation (50 to 3.25M baud)
– 5, 6, 7 or 8-bit characters
– Even, odd or no-parity bit generation and detection
– 1, 1.5 or 2 stop bit generation
* Independent control of transmit, receive, line status, data set interrupts and FIFOs
* Full status-reporting capabilities
* Separate DMA signaling for RX and TX
* Timed interrupt to spread receive interrupt on known duration
* DMA time-out interrupt to allow detection of end of reception
* Carkit pulse coding and decoding compliant with USB carkit control interface [40]

In 16550A auto-configuration, if the fifo size is 64 then it's an U6 16550A port
Add set_termios hook & export serial8250_do_set_termios to change uart
clock following baudrate

Signed-off-by: Philippe Langlais 
Acked-by: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

serial: general fixes in the serial_rs485 structure

2010-08-10T20:47:45+00:00

Fix several issues related to the RS485 interface:

 - It adds the flag SER_RS485_RTS_BEFORE_SEND that was missing from the
   serial_rs485 structure (even if "delay_rts_before_send" was existing)

 - It adds a further "delay_rts_after_send" field for those drivers that
   can have a delay after send (e.g., atmel_serial)

 - It fixes the usage of the structure in the atmel_serial driver (where
   "delay_rts_before_send" should be used instead of "delay_rts_after_send").

Signed-off-by: Claudio Scordino 
Signed-off-by: Bernhard Roth 
Cc: Philippe De Muyter 
Cc: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman