diff options
| author | Houston Hoffman <hhoffman@codeaurora.org> | 2016-08-08 21:08:04 -0700 |
|---|---|---|
| committer | Vishwajith Upendra <vishwaji@codeaurora.org> | 2016-08-13 14:49:04 -0700 |
| commit | 6f60b107c5749c50d03e55a28618ea93d0044dc6 (patch) | |
| tree | 2b36ac0337f85ba5460b902a179864c40c410adf /hif/src/ce | |
| parent | cb9bc6333d4409a41c640e2ff6958ab7ef567872 (diff) | |
qcacmn: Move tasklet flush up to ce
Wish to reuse this logic for snoc
Change-Id: Ibd678feec9fe0ee583d32d055d4cb4a4885991ab
CRs-Fixed: 1051968
Diffstat (limited to 'hif/src/ce')
| -rw-r--r-- | hif/src/ce/ce_tasklet.c | 29 | ||||
| -rw-r--r-- | hif/src/ce/ce_tasklet.h | 1 |
2 files changed, 30 insertions, 0 deletions
diff --git a/hif/src/ce/ce_tasklet.c b/hif/src/ce/ce_tasklet.c index 43d21a04744a..2f6809fa4935 100644 --- a/hif/src/ce/ce_tasklet.c +++ b/hif/src/ce/ce_tasklet.c @@ -240,6 +240,35 @@ void ce_tasklet_kill(struct hif_softc *scn) qdf_atomic_set(&scn->active_tasklet_cnt, 0); } +#define HIF_CE_DRAIN_WAIT_CNT 20 +/** + * hif_drain_tasklets(): wait untill no tasklet is pending + * @scn: hif context + * + * Let running tasklets clear pending trafic. + * + * Return: 0 if no bottom half is in progress when it returns. + * -EFAULT if it times out. + */ +int hif_drain_tasklets(struct hif_softc *scn) +{ + uint32_t ce_drain_wait_cnt = 0; + + while (qdf_atomic_read(&scn->active_tasklet_cnt)) { + if (++ce_drain_wait_cnt > HIF_CE_DRAIN_WAIT_CNT) { + HIF_ERROR("%s: CE still not done with access", + __func__); + + return -EFAULT; + } + HIF_INFO("%s: Waiting for CE to finish access", __func__); + msleep(10); + } + return 0; +} + + + #ifdef WLAN_SUSPEND_RESUME_TEST static bool g_hif_apps_fake_suspended; static hdd_fake_resume_callback hdd_fake_aps_resume; diff --git a/hif/src/ce/ce_tasklet.h b/hif/src/ce/ce_tasklet.h index 1b158aedfde7..a6fbdfd84856 100644 --- a/hif/src/ce/ce_tasklet.h +++ b/hif/src/ce/ce_tasklet.h @@ -31,6 +31,7 @@ void init_tasklet_workers(struct hif_opaque_softc *scn); void ce_tasklet_init(struct HIF_CE_state *hif_ce_state, uint32_t mask); void ce_tasklet_kill(struct hif_softc *scn); +int hif_drain_tasklets(struct hif_softc *scn); QDF_STATUS ce_register_irq(struct HIF_CE_state *hif_ce_state, uint32_t mask); QDF_STATUS ce_unregister_irq(struct HIF_CE_state *hif_ce_state, uint32_t mask); irqreturn_t ce_dispatch_interrupt(int irq, |