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[PATCH] ibmasm driver: redesign handling of remote control events

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This patch rewrites the handling of remote control events.  Rather than making
them available from a special file in the ibmasmfs, now the events from the
RSA card get translated into kernel input events and injected into the input
subsystem.  The driver now will generate two /dev/input/eventX nodes -- one
for the keyboard and one for the mouse.  The mouse node generates absolute
events more like a touch pad than a mouse.

Signed-off-by: Vernon Mauery <vernux@us.ibm.com>
Signed-off-by: Max Asbock <masbock@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Max Asbock
2005-06-21 17:16:34 -07:00
committed by Linus Torvalds
parent b8acb80846
commit 278d72ae88
6 changed files with 457 additions and 277 deletions
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18
drivers/misc/ibmasm/lowlevel.c
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@@ -46,8 +46,8 @@ int ibmasm_send_i2o_message(struct service_processor *sp)
message = get_i2o_message(sp->base_address, mfa);
memcpy(&message->header, &header, sizeof(struct i2o_header));
memcpy(&message->data, command->buffer, command_size);
memcpy_toio(&message->header, &header, sizeof(struct i2o_header));
memcpy_toio(&message->data, command->buffer, command_size);
set_mfa_inbound(sp->base_address, mfa);
@@ -59,23 +59,27 @@ irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id, struct pt_regs *reg
u32 mfa;
struct service_processor *sp = (struct service_processor *)dev_id;
void __iomem *base_address = sp->base_address;
char tsbuf[32];
if (!sp_interrupt_pending(base_address))
return IRQ_NONE;
dbg("respond to interrupt at %s\n", get_timestamp(tsbuf));
if (mouse_interrupt_pending(sp)) {
ibmasm_handle_mouse_interrupt(sp);
mfa = get_mfa_outbound(base_address);
ibmasm_handle_mouse_interrupt(sp, regs);
clear_mouse_interrupt(sp);
set_mfa_outbound(base_address, mfa);
return IRQ_HANDLED;
}
mfa = get_mfa_outbound(base_address);
if (valid_mfa(mfa)) {
struct i2o_message *msg = get_i2o_message(base_address, mfa);
ibmasm_receive_message(sp, &msg->data, incoming_data_size(msg));
}
} else
dbg("didn't get a valid MFA\n");
set_mfa_outbound(base_address, mfa);
dbg("finished interrupt at %s\n", get_timestamp(tsbuf));
return IRQ_HANDLED;
}