diff options
Diffstat (limited to 'drivers/hsi')
| -rw-r--r-- | drivers/hsi/clients/ssi_protocol.c | 41 |
1 files changed, 25 insertions, 16 deletions
diff --git a/drivers/hsi/clients/ssi_protocol.c b/drivers/hsi/clients/ssi_protocol.c index 6595d2091268..8534efda8140 100644 --- a/drivers/hsi/clients/ssi_protocol.c +++ b/drivers/hsi/clients/ssi_protocol.c @@ -88,6 +88,8 @@ void ssi_waketest(struct hsi_client *cl, unsigned int enable); #define SSIP_READY_CMD SSIP_CMD(SSIP_READY, 0) #define SSIP_SWBREAK_CMD SSIP_CMD(SSIP_SW_BREAK, 0) +#define SSIP_WAKETEST_FLAG 0 + /* Main state machine states */ enum { INIT, @@ -116,7 +118,7 @@ enum { * @main_state: Main state machine * @send_state: TX state machine * @recv_state: RX state machine - * @waketest: Flag to follow wake line test + * @flags: Flags, currently only used to follow wake line test * @rxid: RX data id * @txid: TX data id * @txqueue_len: TX queue length @@ -137,7 +139,7 @@ struct ssi_protocol { unsigned int main_state; unsigned int send_state; unsigned int recv_state; - unsigned int waketest:1; + unsigned long flags; u8 rxid; u8 txid; unsigned int txqueue_len; @@ -405,15 +407,17 @@ static void ssip_reset(struct hsi_client *cl) spin_lock_bh(&ssi->lock); if (ssi->send_state != SEND_IDLE) hsi_stop_tx(cl); - if (ssi->waketest) - ssi_waketest(cl, 0); + spin_unlock_bh(&ssi->lock); + if (test_and_clear_bit(SSIP_WAKETEST_FLAG, &ssi->flags)) + ssi_waketest(cl, 0); /* FIXME: To be removed */ + spin_lock_bh(&ssi->lock); del_timer(&ssi->rx_wd); del_timer(&ssi->tx_wd); del_timer(&ssi->keep_alive); ssi->main_state = 0; ssi->send_state = 0; ssi->recv_state = 0; - ssi->waketest = 0; + ssi->flags = 0; ssi->rxid = 0; ssi->txid = 0; list_for_each_safe(head, tmp, &ssi->txqueue) { @@ -437,7 +441,8 @@ static void ssip_dump_state(struct hsi_client *cl) dev_err(&cl->device, "Send state: %d\n", ssi->send_state); dev_err(&cl->device, "CMT %s\n", (ssi->main_state == ACTIVE) ? "Online" : "Offline"); - dev_err(&cl->device, "Wake test %d\n", ssi->waketest); + dev_err(&cl->device, "Wake test %d\n", + test_bit(SSIP_WAKETEST_FLAG, &ssi->flags)); dev_err(&cl->device, "Data RX id: %d\n", ssi->rxid); dev_err(&cl->device, "Data TX id: %d\n", ssi->txid); @@ -668,10 +673,12 @@ static void ssip_rx_bootinforeq(struct hsi_client *cl, u32 cmd) case HANDSHAKE: spin_lock(&ssi->lock); ssi->main_state = HANDSHAKE; - if (!ssi->waketest) { - ssi->waketest = 1; + spin_unlock(&ssi->lock); + + if (!test_and_set_bit(SSIP_WAKETEST_FLAG, &ssi->flags)) ssi_waketest(cl, 1); /* FIXME: To be removed */ - } + + spin_lock(&ssi->lock); /* Start boot handshake watchdog */ mod_timer(&ssi->tx_wd, jiffies + msecs_to_jiffies(SSIP_WDTOUT)); spin_unlock(&ssi->lock); @@ -718,10 +725,12 @@ static void ssip_rx_waketest(struct hsi_client *cl, u32 cmd) spin_unlock(&ssi->lock); return; } - if (ssi->waketest) { - ssi->waketest = 0; + spin_unlock(&ssi->lock); + + if (test_and_clear_bit(SSIP_WAKETEST_FLAG, &ssi->flags)) ssi_waketest(cl, 0); /* FIXME: To be removed */ - } + + spin_lock(&ssi->lock); ssi->main_state = ACTIVE; del_timer(&ssi->tx_wd); /* Stop boot handshake timer */ spin_unlock(&ssi->lock); @@ -926,11 +935,11 @@ static int ssip_pn_open(struct net_device *dev) } dev_dbg(&cl->device, "Configuring SSI port\n"); hsi_setup(cl); - spin_lock_bh(&ssi->lock); - if (!ssi->waketest) { - ssi->waketest = 1; + + if (!test_and_set_bit(SSIP_WAKETEST_FLAG, &ssi->flags)) ssi_waketest(cl, 1); /* FIXME: To be removed */ - } + + spin_lock_bh(&ssi->lock); ssi->main_state = HANDSHAKE; spin_unlock_bh(&ssi->lock); |