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greybus: uart: Update UART to reflect field size changes 

The greybus UART protocol specification was updated to reduce the size of
the control field in serial-state-request and line-state-request. This
patch updates the kernel protocol driver to reflect the specification
changes. Once applied gbsim changes will be also be updated automatically
since gbsim depends on the header being modified directly.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Bryan O'Donoghue 2015-06-29 18:09:15 +01:00 committed by Greg Kroah-Hartman
parent 4c025cf416
commit ba4b099ca8
2 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/staging/greybus/greybus_protocols.h
View File

@ -641,7 +641,7 @@ struct gb_uart_set_line_coding_request {
#define GB_UART_CTRL_RTS 0x02
struct gb_uart_set_control_line_state_request {
__le16 control;
__u8 control;
};
struct gb_uart_set_break_request {
@ -654,7 +654,7 @@ struct gb_uart_set_break_request {
#define GB_UART_CTRL_RI 0x04
struct gb_uart_serial_state_request {
__le16 control;
__u8 control;
};
/* SDIO */

14
drivers/staging/greybus/uart.c
View File

@ -57,8 +57,8 @@ struct gb_tty {
struct mutex mutex;
u8 version_major;
u8 version_minor;
unsigned int ctrlin; /* input control lines */
unsigned int ctrlout; /* output control lines */
u8 ctrlin; /* input control lines */
u8 ctrlout; /* output control lines */
struct gb_tty_line_coding line_coding;
};
@ -123,7 +123,7 @@ static int gb_uart_request_recv(u8 type, struct gb_operation *op)
break;
case GB_UART_TYPE_SERIAL_STATE:
serial_state = request->payload;
gb_tty->ctrlin = le16_to_cpu(serial_state->control);
gb_tty->ctrlin = serial_state->control;
break;
default:
dev_err(&connection->dev,
@ -165,11 +165,11 @@ static int send_line_coding(struct gb_tty *tty)
&request, sizeof(request), NULL, 0);
}
static int send_control(struct gb_tty *gb_tty, u16 control)
static int send_control(struct gb_tty *gb_tty, u8 control)
{
struct gb_uart_set_control_line_state_request request;
request.control = cpu_to_le16(control);
request.control = control;
return gb_operation_sync(gb_tty->connection,
GB_UART_TYPE_SET_CONTROL_LINE_STATE,
&request, sizeof(request), NULL, 0);
@ -314,7 +314,7 @@ static void gb_tty_set_termios(struct tty_struct *tty,
struct gb_tty *gb_tty = tty->driver_data;
struct ktermios *termios = &tty->termios;
struct gb_tty_line_coding newline;
int newctrl = gb_tty->ctrlout;
u8 newctrl = gb_tty->ctrlout;
newline.rate = cpu_to_le32(tty_get_baud_rate(tty));
newline.format = termios->c_cflag & CSTOPB ?
@ -376,7 +376,7 @@ static int gb_tty_tiocmset(struct tty_struct *tty, unsigned int set,
unsigned int clear)
{
struct gb_tty *gb_tty = tty->driver_data;
unsigned int newctrl = gb_tty->ctrlout;
u8 newctrl = gb_tty->ctrlout;
set = (set & TIOCM_DTR ? GB_UART_CTRL_DTR : 0) |
(set & TIOCM_RTS ? GB_UART_CTRL_RTS : 0);