37 #define PS2_FLAG_CMD		BIT(1)	/* Waiting for a command to finish */
38 #define PS2_FLAG_CMD1		BIT(2)	/* Waiting for the first byte of command response */
39 #define PS2_FLAG_WAITID		BIT(3)	/* Command executing is GET ID */
123  * ps2_begin_command - mark beginning of execution of a complex command
124  * @ps2dev: a PS/2 device executing the command
126  * Serializes a complex/compound command. Once command is finished
138  * ps2_end_command - mark end of execution of a complex command
139  * @ps2dev: a PS/2 device executing the command
199  * ps2_adjust_timeout() is called after receiving 1st byte of command
200  * response and tries to reduce remaining timeout to speed up command
204 			      unsigned int command, unsigned int timeout)  in ps2_adjust_timeout()  argument
206 	switch (command) {  in ps2_adjust_timeout()
210 		 * reset command, reset is thus done, so we can  in ps2_adjust_timeout()
222 		 * the GET ID command as it were a mouse, with  in ps2_adjust_timeout()
223 		 * a single byte. Fail the command so atkbd will  in ps2_adjust_timeout()
253  * __ps2_command - send a command to PS/2 device
254  * @ps2dev: the PS/2 device that should execute the command
255  * @param: a buffer containing parameters to be sent along with the command,
256  *   or place where the results of the command execution will be deposited,
258  * @command: command word that encodes the command itself, as well as number of
260  *   length of the command response
265 int __ps2_command(struct ps2dev *ps2dev, u8 *param, unsigned int command)  in __ps2_command()  argument
268 	unsigned int send = (command >> 12) & 0xf;  in __ps2_command()
269 	unsigned int receive = (command >> 8) & 0xf;  in __ps2_command()
290 	switch (command) {  in __ps2_command()
293 		 * Some mice do not ACK the "get ID" command, prepare to  in __ps2_command()
311 		/* Indicate that we expect response to the command. */  in __ps2_command()
320 	 * ACKing the reset command, and so it can take a long  in __ps2_command()
323 	timeout = command == PS2_CMD_RESET_BAT ? 1000 : 200;  in __ps2_command()
325 	rc = ps2_do_sendbyte(ps2dev, command & 0xff, timeout, 2);  in __ps2_command()
329 	/* Send command parameters, if any. */  in __ps2_command()
339 	 * The reset command takes a long time to execute.  in __ps2_command()
341 	timeout = msecs_to_jiffies(command == PS2_CMD_RESET_BAT ? 4000 : 500);  in __ps2_command()
348 		timeout = ps2_adjust_timeout(ps2dev, command, timeout);  in __ps2_command()
362 	    (command != PS2_CMD_RESET_BAT || ps2dev->cmdcnt != 1)) {  in __ps2_command()
375 		command & 0xff, send, send_param,  in __ps2_command()
388  * ps2_command - send a command to PS/2 device
389  * @ps2dev: the PS/2 device that should execute the command
390  * @param: a buffer containing parameters to be sent along with the command,
391  *   or place where the results of the command execution will be deposited,
393  * @command: command word that encodes the command itself, as well as number of
395  *   length of the command response
397  * Note: ps2_command() serializes the command execution so that only one
398  * command can be executed at a time for either individual port or the entire
401 int ps2_command(struct ps2dev *ps2dev, u8 *param, unsigned int command)  in ps2_command()  argument
406 	rc = __ps2_command(ps2dev, param, command);  in ps2_command()
414  * ps2_sliced_command - sends an extended PS/2 command to a mouse
415  * @ps2dev: the PS/2 device that should execute the command
416  * @command: command byte
418  * The command is sent using "sliced" syntax understood by advanced devices,
419  * such as Logitech or Synaptics touchpads. The command is encoded as:
421  * is the command.
423 int ps2_sliced_command(struct ps2dev *ps2dev, u8 command)  in ps2_sliced_command()  argument
435 		u8 d = (command >> i) & 3;  in ps2_sliced_command()
442 	dev_dbg(&ps2dev->serio->dev, "%02x - %d\n", command, retval);  in ps2_sliced_command()
473  * ps2_handle_response() stores device's response to a command and notifies
474  * the process waiting for completion of the command. Note that there is a
497  * ps2_handle_ack() processes ACK/NAK of a command from a PS/2 device,
499  * command.
522 	 * Workaround for mice which don't ACK the Get ID command.  in ps2_handle_ack()
536 		 * waiting for an ACK to the initial (first) command byte:  in ps2_handle_ack()
543 		 * for mice not acknowledging the Get ID command only triggers  in ps2_handle_ack()
590  * ps2_interrupt() invokes pre-receive handler, optionally handles command