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xpp: reset Astribank SPI busses

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* A driver reload should reset Astribank hardware
* This patch send an SPI reset after we get AB_DESCRIPTION reply from Astribank

Signed-off-by: Oron Peled <oron.peled@xorcom.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com>

Origin: http://svnview.digium.com/svn/dahdi?view=rev&rev=10474

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/branches/2.6@10489 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This commit is contained in:
Oron Peled
2012-03-15 17:35:57 +00:00
committed by Tzafrir Cohen
parent 3876f253a6
commit b4989839bc
2 changed files with 26 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/dahdi/xpp/card_global.c
View File

@@ -422,19 +422,37 @@ int xpp_register_request(xbus_t *xbus, xpd_t *xpd, xportno_t portno,
return 0;
}
/* 0x23 */ HOSTCMD(GLOBAL, RESET_SYNC_COUNTERS)
/*
* Wrapper for different types of xbus reset
*/
static int send_xbus_reset(xbus_t *xbus, uint8_t reset_mask)
{
xframe_t *xframe;
xpacket_t *pack;
BUG_ON(!xbus);
//XBUS_DBG(SYNC, xbus, "\n");
XFRAME_NEW_CMD(xframe, pack, xbus, GLOBAL, RESET_SYNC_COUNTERS, 0);
RPACKET_FIELD(pack, GLOBAL, RESET_SYNC_COUNTERS, mask) = 0x10;
XFRAME_NEW_CMD(xframe, pack, xbus, GLOBAL, XBUS_RESET, 0);
RPACKET_FIELD(pack, GLOBAL, XBUS_RESET, mask) = reset_mask;
send_cmd_frame(xbus, xframe);
return 0;
}
/* 0x23 */ HOSTCMD(GLOBAL, RESET_SPI)
{
XBUS_DBG(DEVICES, xbus, "Sending SPI reset\n");
/* toggle reset line */
send_xbus_reset(xbus, 0x04);
send_xbus_reset(xbus, 0x00);
return 0;
}
/* 0x23 */ HOSTCMD(GLOBAL, RESET_SYNC_COUNTERS)
{
//XBUS_DBG(SYNC, xbus, "\n");
return send_xbus_reset(xbus, 0x10);
}
/*---------------- GLOBAL: Astribank Reply Handlers -----------------------*/
HANDLER_DEF(GLOBAL, NULL_REPLY)
@@ -526,6 +544,7 @@ HANDLER_DEF(GLOBAL, AB_DESCRIPTION) /* 0x08 */
list_add_tail(&card_desc->card_list, &worker->card_list);
spin_unlock_irqrestore(&worker->worker_lock, flags);
}
CALL_PROTO(GLOBAL, RESET_SPI, xbus, NULL);
if (!xbus_process_worker(xbus)) {
ret = -ENODEV;
goto out;

5
drivers/dahdi/xpp/card_global.h
View File

@@ -38,7 +38,7 @@ enum global_opcodes {
XPROTO_NAME(GLOBAL, SYNC_REPLY) = 0x1A,
/**/
XPROTO_NAME(GLOBAL, ERROR_CODE) = 0x22,
XPROTO_NAME(GLOBAL, RESET_SYNC_COUNTERS) = 0x23,
XPROTO_NAME(GLOBAL, XBUS_RESET) = 0x23,
XPROTO_NAME(GLOBAL, NULL_REPLY) = 0xFE,
};
@@ -87,7 +87,7 @@ DEF_RPACKET_DATA(GLOBAL, SYNC_REPLY,
DEF_RPACKET_DATA(GLOBAL, REGISTER_REPLY,
reg_cmd_t regcmd;
);
DEF_RPACKET_DATA(GLOBAL, RESET_SYNC_COUNTERS,
DEF_RPACKET_DATA(GLOBAL, XBUS_RESET,
byte mask;
);
DEF_RPACKET_DATA(GLOBAL, ERROR_CODE,
@@ -98,6 +98,7 @@ DEF_RPACKET_DATA(GLOBAL, ERROR_CODE,
/* 0x07 */ DECLARE_CMD(GLOBAL, AB_REQUEST);
/* 0x19 */ DECLARE_CMD(GLOBAL, SYNC_SOURCE, enum sync_mode mode, int drift);
/* 0x23 */ DECLARE_CMD(GLOBAL, RESET_SPI);
/* 0x23 */ DECLARE_CMD(GLOBAL, RESET_SYNC_COUNTERS);
int xpp_register_request(xbus_t *xbus, xpd_t *xpd, xportno_t portno,