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Staging: sep: clean up command sending

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Split out the debug dumping functionality. Clean up the rest. For the moment
leave the hideous cache flush in there as the code needs fixing to use
the dma_map_sg interfaces not its own crazed table functions

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2009-08-14 15:43:05 +01:00 committed by Greg Kroah-Hartman
parent 6f9e0f60c4
commit 2e7dcc3bbf
1 changed files with 45 additions and 23 deletions
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64
drivers/staging/sep/sep_driver.c
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@ -461,7 +461,8 @@ static unsigned int sep_poll(struct file *filp, poll_table * wait)
}
/*
calculates time and sets it at the predefined address
calculates time and sets it at the predefined address. Called with the
mutex held.
*/
static int sep_set_time(struct sep_device *sep, unsigned long *address_ptr, unsigned long *time_in_sec_ptr)
{
@ -496,53 +497,74 @@ static int sep_set_time(struct sep_device *sep, unsigned long *address_ptr, unsi
return 0;
}
/*
This function raises interrupt to SEP that signals that is has a new
command from HOST
/**
* sep_dump_message - dump the message that is pending
* @sep: sep device
*
* Dump out the message pending in the shared message area
*/
static void sep_dump_message(struct sep_device *sep)
{
int count;
for (count = 0; count < 12 * 4; count += 4)
edbg("Word %d of the message is %u\n", count, *((u32 *) (sep->shared_addr + count)));
}
/**
* sep_send_command_handler - kick off a command
* @sep: sep being signalled
*
* This function raises interrupt to SEP that signals that is has a new
* command from the host
*/
static void sep_send_command_handler(struct sep_device *sep)
{
unsigned long count;
dbg("sep:sep_send_command_handler start\n");
dbg("SEP Driver:--------> sep_send_command_handler start\n");
mutex_lock(&sep_mutex);
sep_set_time(sep, 0, 0);
/* flash cache */
/* FIXME: flush cache */
flush_cache_all();
for (count = 0; count < 12 * 4; count += 4)
edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_addr + count)));
sep_dump_message(sep);
/* update counter */
sep->send_ct++;
/* send interrupt to SEP */
sep_write_reg(sep, HW_HOST_HOST_SEP_GPR0_REG_ADDR, 0x2);
dbg("SEP Driver:<-------- sep_send_command_handler end\n");
mutex_unlock(&sep_mutex);
return;
}
/*
This function raises interrupt to SEPm that signals that is has a
new command from HOST
/**
* sep_send_reply_command_handler - kick off a command reply
* @sep: sep being signalled
*
* This function raises interrupt to SEP that signals that is has a new
* command from the host
*/
static void sep_send_reply_command_handler(struct sep_device *sep)
{
unsigned long count;
dbg("SEP Driver:--------> sep_send_reply_command_handler start\n");
dbg("sep:sep_send_reply_command_handler start\n");
/* flash cache */
flush_cache_all();
for (count = 0; count < 12 * 4; count += 4)
edbg("Word %lu of the message is %lu\n", count, *((unsigned long *) (sep->shared_addr + count)));
/* update counter */
sep->send_ct++;
sep_dump_message(sep);
mutex_lock(&sep_mutex);
sep->send_ct++; /* update counter */
/* send the interrupt to SEP */
sep_write_reg(sep, HW_HOST_HOST_SEP_GPR2_REG_ADDR, sep->send_ct);
/* update both counters */
sep->send_ct++;
sep->reply_ct++;
dbg("SEP Driver:<-------- sep_send_reply_command_handler end\n");
mutex_unlock(&sep_mutex);
dbg("sep: sep_send_reply_command_handler end\n");
}
/*