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Message-Id: <20230105154215.198828-1-m.chetan.kumar@linux.intel.com>
Date: Thu, 5 Jan 2023 21:12:15 +0530
From: m.chetan.kumar@...ux.intel.com
To: netdev@...r.kernel.org
Cc: kuba@...nel.org, davem@...emloft.net, johannes@...solutions.net,
ryazanov.s.a@...il.com, loic.poulain@...aro.org,
ilpo.jarvinen@...ux.intel.com, ricardo.martinez@...ux.intel.com,
chiranjeevi.rapolu@...ux.intel.com, haijun.liu@...iatek.com,
edumazet@...gle.com, pabeni@...hat.com, linuxwwan@...el.com,
linuxwwan_5g@...el.com, chandrashekar.devegowda@...el.com,
m.chetan.kumar@...ux.intel.com,
Madhusmita Sahu <madhusmita.sahu@...el.com>,
Moises Veleta <moises.veleta@...ux.intel.com>
Subject: [PATCH v2 net-next 1/5] net: wwan: t7xx: Add AP CLDMA
From: Haijun Liu <haijun.liu@...iatek.com>
The t7xx device contains two Cross Layer DMA (CLDMA) interfaces to
communicate with AP and Modem processors respectively. So far only
MD-CLDMA was being used, this patch enables AP-CLDMA.
Rename small Application Processor (sAP) to AP.
Signed-off-by: Haijun Liu <haijun.liu@...iatek.com>
Co-developed-by: Madhusmita Sahu <madhusmita.sahu@...el.com>
Signed-off-by: Madhusmita Sahu <madhusmita.sahu@...el.com>
Signed-off-by: Moises Veleta <moises.veleta@...ux.intel.com>
Signed-off-by: Devegowda Chandrashekar <chandrashekar.devegowda@...el.com>
Signed-off-by: M Chetan Kumar <m.chetan.kumar@...ux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Reviewed-by: Sergey Ryazanov <ryazanov.s.a@...il.com>
--
v2:
* Reuse handshake_wq for AP work.
* Remove AP trace port tx/rx channel id.
* Rename t7xx_md_port_conf to t7xx_port_conf.
---
drivers/net/wwan/t7xx/t7xx_hif_cldma.c | 17 +++--
drivers/net/wwan/t7xx/t7xx_hif_cldma.h | 2 +-
drivers/net/wwan/t7xx/t7xx_mhccif.h | 1 +
drivers/net/wwan/t7xx/t7xx_modem_ops.c | 76 +++++++++++++++++-----
drivers/net/wwan/t7xx/t7xx_modem_ops.h | 2 +
drivers/net/wwan/t7xx/t7xx_port.h | 6 +-
drivers/net/wwan/t7xx/t7xx_port_ctrl_msg.c | 8 ++-
drivers/net/wwan/t7xx/t7xx_port_proxy.c | 18 ++++-
drivers/net/wwan/t7xx/t7xx_reg.h | 2 +-
drivers/net/wwan/t7xx/t7xx_state_monitor.c | 13 +++-
drivers/net/wwan/t7xx/t7xx_state_monitor.h | 2 +
11 files changed, 116 insertions(+), 31 deletions(-)
diff --git a/drivers/net/wwan/t7xx/t7xx_hif_cldma.c b/drivers/net/wwan/t7xx/t7xx_hif_cldma.c
index aec3a18d44bd..4f56d8cc0aea 100644
--- a/drivers/net/wwan/t7xx/t7xx_hif_cldma.c
+++ b/drivers/net/wwan/t7xx/t7xx_hif_cldma.c
@@ -1066,13 +1066,18 @@ static void t7xx_hw_info_init(struct cldma_ctrl *md_ctrl)
struct t7xx_cldma_hw *hw_info = &md_ctrl->hw_info;
u32 phy_ao_base, phy_pd_base;
- if (md_ctrl->hif_id != CLDMA_ID_MD)
- return;
-
- phy_ao_base = CLDMA1_AO_BASE;
- phy_pd_base = CLDMA1_PD_BASE;
- hw_info->phy_interrupt_id = CLDMA1_INT;
hw_info->hw_mode = MODE_BIT_64;
+
+ if (md_ctrl->hif_id == CLDMA_ID_MD) {
+ phy_ao_base = CLDMA1_AO_BASE;
+ phy_pd_base = CLDMA1_PD_BASE;
+ hw_info->phy_interrupt_id = CLDMA1_INT;
+ } else {
+ phy_ao_base = CLDMA0_AO_BASE;
+ phy_pd_base = CLDMA0_PD_BASE;
+ hw_info->phy_interrupt_id = CLDMA0_INT;
+ }
+
hw_info->ap_ao_base = t7xx_pcie_addr_transfer(pbase->pcie_ext_reg_base,
pbase->pcie_dev_reg_trsl_addr, phy_ao_base);
hw_info->ap_pdn_base = t7xx_pcie_addr_transfer(pbase->pcie_ext_reg_base,
diff --git a/drivers/net/wwan/t7xx/t7xx_hif_cldma.h b/drivers/net/wwan/t7xx/t7xx_hif_cldma.h
index 47a35e552da7..4410bac6993a 100644
--- a/drivers/net/wwan/t7xx/t7xx_hif_cldma.h
+++ b/drivers/net/wwan/t7xx/t7xx_hif_cldma.h
@@ -34,7 +34,7 @@
/**
* enum cldma_id - Identifiers for CLDMA HW units.
* @CLDMA_ID_MD: Modem control channel.
- * @CLDMA_ID_AP: Application Processor control channel (not used at the moment).
+ * @CLDMA_ID_AP: Application Processor control channel.
* @CLDMA_NUM: Number of CLDMA HW units available.
*/
enum cldma_id {
diff --git a/drivers/net/wwan/t7xx/t7xx_mhccif.h b/drivers/net/wwan/t7xx/t7xx_mhccif.h
index 209b386bc088..20c50dce9fc3 100644
--- a/drivers/net/wwan/t7xx/t7xx_mhccif.h
+++ b/drivers/net/wwan/t7xx/t7xx_mhccif.h
@@ -25,6 +25,7 @@
D2H_INT_EXCEPTION_CLEARQ_DONE | \
D2H_INT_EXCEPTION_ALLQ_RESET | \
D2H_INT_PORT_ENUM | \
+ D2H_INT_ASYNC_AP_HK | \
D2H_INT_ASYNC_MD_HK)
void t7xx_mhccif_mask_set(struct t7xx_pci_dev *t7xx_dev, u32 val);
diff --git a/drivers/net/wwan/t7xx/t7xx_modem_ops.c b/drivers/net/wwan/t7xx/t7xx_modem_ops.c
index 7d0f5e4f0a78..24e7d491468e 100644
--- a/drivers/net/wwan/t7xx/t7xx_modem_ops.c
+++ b/drivers/net/wwan/t7xx/t7xx_modem_ops.c
@@ -44,6 +44,7 @@
#include "t7xx_state_monitor.h"
#define RT_ID_MD_PORT_ENUM 0
+#define RT_ID_AP_PORT_ENUM 1
/* Modem feature query identification code - "ICCC" */
#define MD_FEATURE_QUERY_ID 0x49434343
@@ -298,6 +299,7 @@ static void t7xx_md_exception(struct t7xx_modem *md, enum hif_ex_stage stage)
}
t7xx_cldma_exception(md->md_ctrl[CLDMA_ID_MD], stage);
+ t7xx_cldma_exception(md->md_ctrl[CLDMA_ID_AP], stage);
if (stage == HIF_EX_INIT)
t7xx_mhccif_h2d_swint_trigger(t7xx_dev, H2D_CH_EXCEPTION_ACK);
@@ -426,7 +428,7 @@ static int t7xx_parse_host_rt_data(struct t7xx_fsm_ctl *ctl, struct t7xx_sys_inf
if (ft_spt_st != MTK_FEATURE_MUST_BE_SUPPORTED)
return -EINVAL;
- if (i == RT_ID_MD_PORT_ENUM)
+ if (i == RT_ID_MD_PORT_ENUM || i == RT_ID_AP_PORT_ENUM)
t7xx_port_enum_msg_handler(ctl->md, rt_feature->data);
}
@@ -456,12 +458,12 @@ static int t7xx_core_reset(struct t7xx_modem *md)
return 0;
}
-static void t7xx_core_hk_handler(struct t7xx_modem *md, struct t7xx_fsm_ctl *ctl,
+static void t7xx_core_hk_handler(struct t7xx_modem *md, struct t7xx_sys_info *core_info,
+ struct t7xx_fsm_ctl *ctl,
enum t7xx_fsm_event_state event_id,
enum t7xx_fsm_event_state err_detect)
{
struct t7xx_fsm_event *event = NULL, *event_next;
- struct t7xx_sys_info *core_info = &md->core_md;
struct device *dev = &md->t7xx_dev->pdev->dev;
unsigned long flags;
int ret;
@@ -531,19 +533,33 @@ static void t7xx_md_hk_wq(struct work_struct *work)
t7xx_cldma_start(md->md_ctrl[CLDMA_ID_MD]);
t7xx_fsm_broadcast_state(ctl, MD_STATE_WAITING_FOR_HS2);
md->core_md.handshake_ongoing = true;
- t7xx_core_hk_handler(md, ctl, FSM_EVENT_MD_HS2, FSM_EVENT_MD_HS2_EXIT);
+ t7xx_core_hk_handler(md, &md->core_md, ctl, FSM_EVENT_MD_HS2, FSM_EVENT_MD_HS2_EXIT);
+}
+
+static void t7xx_ap_hk_wq(struct work_struct *work)
+{
+ struct t7xx_modem *md = container_of(work, struct t7xx_modem, ap_handshake_work);
+ struct t7xx_fsm_ctl *ctl = md->fsm_ctl;
+
+ /* Clear the HS2 EXIT event appended in t7xx_core_reset(). */
+ t7xx_fsm_clr_event(ctl, FSM_EVENT_AP_HS2_EXIT);
+ t7xx_cldma_stop(md->md_ctrl[CLDMA_ID_AP]);
+ t7xx_cldma_switch_cfg(md->md_ctrl[CLDMA_ID_AP]);
+ t7xx_cldma_start(md->md_ctrl[CLDMA_ID_AP]);
+ md->core_ap.handshake_ongoing = true;
+ t7xx_core_hk_handler(md, &md->core_ap, ctl, FSM_EVENT_AP_HS2, FSM_EVENT_AP_HS2_EXIT);
}
void t7xx_md_event_notify(struct t7xx_modem *md, enum md_event_id evt_id)
{
struct t7xx_fsm_ctl *ctl = md->fsm_ctl;
- void __iomem *mhccif_base;
unsigned int int_sta;
unsigned long flags;
switch (evt_id) {
case FSM_PRE_START:
- t7xx_mhccif_mask_clr(md->t7xx_dev, D2H_INT_PORT_ENUM);
+ t7xx_mhccif_mask_clr(md->t7xx_dev, D2H_INT_PORT_ENUM | D2H_INT_ASYNC_MD_HK |
+ D2H_INT_ASYNC_AP_HK);
break;
case FSM_START:
@@ -556,16 +572,26 @@ void t7xx_md_event_notify(struct t7xx_modem *md, enum md_event_id evt_id)
ctl->exp_flg = true;
md->exp_id &= ~D2H_INT_EXCEPTION_INIT;
md->exp_id &= ~D2H_INT_ASYNC_MD_HK;
+ md->exp_id &= ~D2H_INT_ASYNC_AP_HK;
} else if (ctl->exp_flg) {
md->exp_id &= ~D2H_INT_ASYNC_MD_HK;
- } else if (md->exp_id & D2H_INT_ASYNC_MD_HK) {
- queue_work(md->handshake_wq, &md->handshake_work);
- md->exp_id &= ~D2H_INT_ASYNC_MD_HK;
- mhccif_base = md->t7xx_dev->base_addr.mhccif_rc_base;
- iowrite32(D2H_INT_ASYNC_MD_HK, mhccif_base + REG_EP2RC_SW_INT_ACK);
- t7xx_mhccif_mask_set(md->t7xx_dev, D2H_INT_ASYNC_MD_HK);
+ md->exp_id &= ~D2H_INT_ASYNC_AP_HK;
} else {
- t7xx_mhccif_mask_clr(md->t7xx_dev, D2H_INT_ASYNC_MD_HK);
+ void __iomem *mhccif_base = md->t7xx_dev->base_addr.mhccif_rc_base;
+
+ if (md->exp_id & D2H_INT_ASYNC_MD_HK) {
+ queue_work(md->handshake_wq, &md->handshake_work);
+ md->exp_id &= ~D2H_INT_ASYNC_MD_HK;
+ iowrite32(D2H_INT_ASYNC_MD_HK, mhccif_base + REG_EP2RC_SW_INT_ACK);
+ t7xx_mhccif_mask_set(md->t7xx_dev, D2H_INT_ASYNC_MD_HK);
+ }
+
+ if (md->exp_id & D2H_INT_ASYNC_AP_HK) {
+ queue_work(md->handshake_wq, &md->ap_handshake_work);
+ md->exp_id &= ~D2H_INT_ASYNC_AP_HK;
+ iowrite32(D2H_INT_ASYNC_AP_HK, mhccif_base + REG_EP2RC_SW_INT_ACK);
+ t7xx_mhccif_mask_set(md->t7xx_dev, D2H_INT_ASYNC_AP_HK);
+ }
}
spin_unlock_irqrestore(&md->exp_lock, flags);
@@ -578,6 +604,7 @@ void t7xx_md_event_notify(struct t7xx_modem *md, enum md_event_id evt_id)
case FSM_READY:
t7xx_mhccif_mask_set(md->t7xx_dev, D2H_INT_ASYNC_MD_HK);
+ t7xx_mhccif_mask_set(md->t7xx_dev, D2H_INT_ASYNC_AP_HK);
break;
default:
@@ -629,6 +656,12 @@ static struct t7xx_modem *t7xx_md_alloc(struct t7xx_pci_dev *t7xx_dev)
md->core_md.feature_set[RT_ID_MD_PORT_ENUM] &= ~FEATURE_MSK;
md->core_md.feature_set[RT_ID_MD_PORT_ENUM] |=
FIELD_PREP(FEATURE_MSK, MTK_FEATURE_MUST_BE_SUPPORTED);
+
+ INIT_WORK(&md->ap_handshake_work, t7xx_ap_hk_wq);
+ md->core_ap.feature_set[RT_ID_AP_PORT_ENUM] &= ~FEATURE_MSK;
+ md->core_ap.feature_set[RT_ID_AP_PORT_ENUM] |=
+ FIELD_PREP(FEATURE_MSK, MTK_FEATURE_MUST_BE_SUPPORTED);
+
return md;
}
@@ -640,6 +673,7 @@ int t7xx_md_reset(struct t7xx_pci_dev *t7xx_dev)
md->exp_id = 0;
t7xx_fsm_reset(md);
t7xx_cldma_reset(md->md_ctrl[CLDMA_ID_MD]);
+ t7xx_cldma_reset(md->md_ctrl[CLDMA_ID_AP]);
t7xx_port_proxy_reset(md->port_prox);
md->md_init_finish = true;
return t7xx_core_reset(md);
@@ -669,6 +703,10 @@ int t7xx_md_init(struct t7xx_pci_dev *t7xx_dev)
if (ret)
goto err_destroy_hswq;
+ ret = t7xx_cldma_alloc(CLDMA_ID_AP, t7xx_dev);
+ if (ret)
+ goto err_destroy_hswq;
+
ret = t7xx_fsm_init(md);
if (ret)
goto err_destroy_hswq;
@@ -681,12 +719,16 @@ int t7xx_md_init(struct t7xx_pci_dev *t7xx_dev)
if (ret)
goto err_uninit_ccmni;
- ret = t7xx_port_proxy_init(md);
+ ret = t7xx_cldma_init(md->md_ctrl[CLDMA_ID_AP]);
if (ret)
goto err_uninit_md_cldma;
+ ret = t7xx_port_proxy_init(md);
+ if (ret)
+ goto err_uninit_ap_cldma;
+
ret = t7xx_fsm_append_cmd(md->fsm_ctl, FSM_CMD_START, 0);
- if (ret) /* fsm_uninit flushes cmd queue */
+ if (ret) /* t7xx_fsm_uninit() flushes cmd queue */
goto err_uninit_proxy;
t7xx_md_sys_sw_init(t7xx_dev);
@@ -696,6 +738,9 @@ int t7xx_md_init(struct t7xx_pci_dev *t7xx_dev)
err_uninit_proxy:
t7xx_port_proxy_uninit(md->port_prox);
+err_uninit_ap_cldma:
+ t7xx_cldma_exit(md->md_ctrl[CLDMA_ID_AP]);
+
err_uninit_md_cldma:
t7xx_cldma_exit(md->md_ctrl[CLDMA_ID_MD]);
@@ -722,6 +767,7 @@ void t7xx_md_exit(struct t7xx_pci_dev *t7xx_dev)
t7xx_fsm_append_cmd(md->fsm_ctl, FSM_CMD_PRE_STOP, FSM_CMD_FLAG_WAIT_FOR_COMPLETION);
t7xx_port_proxy_uninit(md->port_prox);
+ t7xx_cldma_exit(md->md_ctrl[CLDMA_ID_AP]);
t7xx_cldma_exit(md->md_ctrl[CLDMA_ID_MD]);
t7xx_ccmni_exit(t7xx_dev);
t7xx_fsm_uninit(md);
diff --git a/drivers/net/wwan/t7xx/t7xx_modem_ops.h b/drivers/net/wwan/t7xx/t7xx_modem_ops.h
index 7469ed636ae8..abe633cf7adc 100644
--- a/drivers/net/wwan/t7xx/t7xx_modem_ops.h
+++ b/drivers/net/wwan/t7xx/t7xx_modem_ops.h
@@ -66,10 +66,12 @@ struct t7xx_modem {
struct cldma_ctrl *md_ctrl[CLDMA_NUM];
struct t7xx_pci_dev *t7xx_dev;
struct t7xx_sys_info core_md;
+ struct t7xx_sys_info core_ap;
bool md_init_finish;
bool rgu_irq_asserted;
struct workqueue_struct *handshake_wq;
struct work_struct handshake_work;
+ struct work_struct ap_handshake_work;
struct t7xx_fsm_ctl *fsm_ctl;
struct port_proxy *port_prox;
unsigned int exp_id;
diff --git a/drivers/net/wwan/t7xx/t7xx_port.h b/drivers/net/wwan/t7xx/t7xx_port.h
index 8ea9079af997..4ae8a00a8532 100644
--- a/drivers/net/wwan/t7xx/t7xx_port.h
+++ b/drivers/net/wwan/t7xx/t7xx_port.h
@@ -36,9 +36,13 @@
/* Channel ID and Message ID definitions.
* The channel number consists of peer_id(15:12) , channel_id(11:0)
* peer_id:
- * 0:reserved, 1: to sAP, 2: to MD
+ * 0:reserved, 1: to AP, 2: to MD
*/
enum port_ch {
+ /* to AP */
+ PORT_CH_AP_CONTROL_RX = 0x1000,
+ PORT_CH_AP_CONTROL_TX = 0x1001,
+
/* to MD */
PORT_CH_CONTROL_RX = 0x2000,
PORT_CH_CONTROL_TX = 0x2001,
diff --git a/drivers/net/wwan/t7xx/t7xx_port_ctrl_msg.c b/drivers/net/wwan/t7xx/t7xx_port_ctrl_msg.c
index 68430b130a67..ae632ef96698 100644
--- a/drivers/net/wwan/t7xx/t7xx_port_ctrl_msg.c
+++ b/drivers/net/wwan/t7xx/t7xx_port_ctrl_msg.c
@@ -167,8 +167,12 @@ static int control_msg_handler(struct t7xx_port *port, struct sk_buff *skb)
case CTL_ID_HS2_MSG:
skb_pull(skb, sizeof(*ctrl_msg_h));
- if (port_conf->rx_ch == PORT_CH_CONTROL_RX) {
- ret = t7xx_fsm_append_event(ctl, FSM_EVENT_MD_HS2, skb->data,
+ if (port_conf->rx_ch == PORT_CH_CONTROL_RX ||
+ port_conf->rx_ch == PORT_CH_AP_CONTROL_RX) {
+ int event = port_conf->rx_ch == PORT_CH_CONTROL_RX ?
+ FSM_EVENT_MD_HS2 : FSM_EVENT_AP_HS2;
+
+ ret = t7xx_fsm_append_event(ctl, event, skb->data,
le32_to_cpu(ctrl_msg_h->data_length));
if (ret)
dev_err(port->dev, "Failed to append Handshake 2 event");
diff --git a/drivers/net/wwan/t7xx/t7xx_port_proxy.c b/drivers/net/wwan/t7xx/t7xx_port_proxy.c
index 894b1d11b2c9..274846d39fbf 100644
--- a/drivers/net/wwan/t7xx/t7xx_port_proxy.c
+++ b/drivers/net/wwan/t7xx/t7xx_port_proxy.c
@@ -48,7 +48,7 @@
i < (proxy)->port_count; \
i++, (p) = &(proxy)->ports[i])
-static const struct t7xx_port_conf t7xx_md_port_conf[] = {
+static const struct t7xx_port_conf t7xx_port_conf[] = {
{
.tx_ch = PORT_CH_UART2_TX,
.rx_ch = PORT_CH_UART2_RX,
@@ -89,6 +89,14 @@ static const struct t7xx_port_conf t7xx_md_port_conf[] = {
.path_id = CLDMA_ID_MD,
.ops = &ctl_port_ops,
.name = "t7xx_ctrl",
+ }, {
+ .tx_ch = PORT_CH_AP_CONTROL_TX,
+ .rx_ch = PORT_CH_AP_CONTROL_RX,
+ .txq_index = Q_IDX_CTRL,
+ .rxq_index = Q_IDX_CTRL,
+ .path_id = CLDMA_ID_AP,
+ .ops = &ctl_port_ops,
+ .name = "t7xx_ap_ctrl",
},
};
@@ -428,6 +436,9 @@ static void t7xx_proxy_init_all_ports(struct t7xx_modem *md)
if (port_conf->tx_ch == PORT_CH_CONTROL_TX)
md->core_md.ctl_port = port;
+ if (port_conf->tx_ch == PORT_CH_AP_CONTROL_TX)
+ md->core_ap.ctl_port = port;
+
port->t7xx_dev = md->t7xx_dev;
port->dev = &md->t7xx_dev->pdev->dev;
spin_lock_init(&port->port_update_lock);
@@ -442,7 +453,7 @@ static void t7xx_proxy_init_all_ports(struct t7xx_modem *md)
static int t7xx_proxy_alloc(struct t7xx_modem *md)
{
- unsigned int port_count = ARRAY_SIZE(t7xx_md_port_conf);
+ unsigned int port_count = ARRAY_SIZE(t7xx_port_conf);
struct device *dev = &md->t7xx_dev->pdev->dev;
struct port_proxy *port_prox;
int i;
@@ -456,7 +467,7 @@ static int t7xx_proxy_alloc(struct t7xx_modem *md)
port_prox->dev = dev;
for (i = 0; i < port_count; i++)
- port_prox->ports[i].port_conf = &t7xx_md_port_conf[i];
+ port_prox->ports[i].port_conf = &t7xx_port_conf[i];
port_prox->port_count = port_count;
t7xx_proxy_init_all_ports(md);
@@ -481,6 +492,7 @@ int t7xx_port_proxy_init(struct t7xx_modem *md)
if (ret)
return ret;
+ t7xx_cldma_set_recv_skb(md->md_ctrl[CLDMA_ID_AP], t7xx_port_proxy_recv_skb);
t7xx_cldma_set_recv_skb(md->md_ctrl[CLDMA_ID_MD], t7xx_port_proxy_recv_skb);
return 0;
}
diff --git a/drivers/net/wwan/t7xx/t7xx_reg.h b/drivers/net/wwan/t7xx/t7xx_reg.h
index 7c1b81091a0f..c41d7d094c08 100644
--- a/drivers/net/wwan/t7xx/t7xx_reg.h
+++ b/drivers/net/wwan/t7xx/t7xx_reg.h
@@ -56,7 +56,7 @@
#define D2H_INT_RESUME_ACK BIT(12)
#define D2H_INT_SUSPEND_ACK_AP BIT(13)
#define D2H_INT_RESUME_ACK_AP BIT(14)
-#define D2H_INT_ASYNC_SAP_HK BIT(15)
+#define D2H_INT_ASYNC_AP_HK BIT(15)
#define D2H_INT_ASYNC_MD_HK BIT(16)
/* Register base */
diff --git a/drivers/net/wwan/t7xx/t7xx_state_monitor.c b/drivers/net/wwan/t7xx/t7xx_state_monitor.c
index 0bcca08ff2bd..80edb8e75a6a 100644
--- a/drivers/net/wwan/t7xx/t7xx_state_monitor.c
+++ b/drivers/net/wwan/t7xx/t7xx_state_monitor.c
@@ -285,8 +285,9 @@ static int fsm_routine_starting(struct t7xx_fsm_ctl *ctl)
t7xx_fsm_broadcast_state(ctl, MD_STATE_WAITING_FOR_HS1);
t7xx_md_event_notify(md, FSM_START);
- wait_event_interruptible_timeout(ctl->async_hk_wq, md->core_md.ready || ctl->exp_flg,
- HZ * 60);
+ wait_event_interruptible_timeout(ctl->async_hk_wq,
+ (md->core_md.ready && md->core_ap.ready) ||
+ ctl->exp_flg, HZ * 60);
dev = &md->t7xx_dev->pdev->dev;
if (ctl->exp_flg)
@@ -297,6 +298,13 @@ static int fsm_routine_starting(struct t7xx_fsm_ctl *ctl)
if (md->core_md.handshake_ongoing)
t7xx_fsm_append_event(ctl, FSM_EVENT_MD_HS2_EXIT, NULL, 0);
+ fsm_routine_exception(ctl, NULL, EXCEPTION_HS_TIMEOUT);
+ return -ETIMEDOUT;
+ } else if (!md->core_ap.ready) {
+ dev_err(dev, "AP handshake timeout\n");
+ if (md->core_ap.handshake_ongoing)
+ t7xx_fsm_append_event(ctl, FSM_EVENT_AP_HS2_EXIT, NULL, 0);
+
fsm_routine_exception(ctl, NULL, EXCEPTION_HS_TIMEOUT);
return -ETIMEDOUT;
}
@@ -335,6 +343,7 @@ static void fsm_routine_start(struct t7xx_fsm_ctl *ctl, struct t7xx_fsm_command
return;
}
+ t7xx_cldma_hif_hw_init(md->md_ctrl[CLDMA_ID_AP]);
t7xx_cldma_hif_hw_init(md->md_ctrl[CLDMA_ID_MD]);
fsm_finish_command(ctl, cmd, fsm_routine_starting(ctl));
}
diff --git a/drivers/net/wwan/t7xx/t7xx_state_monitor.h b/drivers/net/wwan/t7xx/t7xx_state_monitor.h
index b1af0259d4c5..b6e76f3903c8 100644
--- a/drivers/net/wwan/t7xx/t7xx_state_monitor.h
+++ b/drivers/net/wwan/t7xx/t7xx_state_monitor.h
@@ -38,10 +38,12 @@ enum t7xx_fsm_state {
enum t7xx_fsm_event_state {
FSM_EVENT_INVALID,
FSM_EVENT_MD_HS2,
+ FSM_EVENT_AP_HS2,
FSM_EVENT_MD_EX,
FSM_EVENT_MD_EX_REC_OK,
FSM_EVENT_MD_EX_PASS,
FSM_EVENT_MD_HS2_EXIT,
+ FSM_EVENT_AP_HS2_EXIT,
FSM_EVENT_MAX
};
--
2.34.1
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