laiyp/lib_xua
1
0
Fork 0
forked from PAWPAW-Mirror/lib_xua
Code Pull Requests Activity

Free chanend in device_reboot so there is one to talk to the sswitch on.

Browse Source 
Compiled to assembly and frigged the accounting of chanends to get it passed the mapper.
This commit is contained in:
Russell
2012-01-06 16:26:58 +00:00
parent 6a195a8241
commit 8b0ad92d87
3 changed files with 730 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
module_usb_aud_shared/reboot.xcnot Normal file
View File

@@ -0,0 +1,21 @@
#include <xs1.h>
#include <print.h>
int write_sswitch_reg_blind(unsigned coreid, unsigned reg, unsigned data);
/* Reboots XMOS device by writing to the PLL config register */
void device_reboot(chanend spare)
{
// Need a spare chanend so we can talk to the pll register
asm("freer res[%0]"::"r"(spare));
// Need to tell the mapper we have freed one
//asm(".set device_reboot.maxchanends, 0");
{
unsigned int pllVal;
unsigned int core_id = get_core_id();
read_sswitch_reg(core_id, 6, pllVal);
write_sswitch_reg_blind(core_id^0x8000, 6, pllVal);
write_sswitch_reg_blind(core_id, 6, pllVal);
}
}