diff options
Diffstat (limited to 'drivers/usb/typec/tcpm')
| -rw-r--r-- | drivers/usb/typec/tcpm/fusb302.c | 2 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/Makefile | 3 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c | 254 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.h | 27 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c | 159 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h | 94 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy_stub.c | 80 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c | 290 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.h | 172 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpci.c | 27 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpci_maxim.h | 1 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpci_maxim_core.c | 38 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpm.c | 1052 | ||||
| -rw-r--r-- | drivers/usb/typec/tcpm/wcove.c | 2 |
14 files changed, 1521 insertions, 680 deletions
diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c index bc21006e979c66..ef18a448b7406b 100644 --- a/drivers/usb/typec/tcpm/fusb302.c +++ b/drivers/usb/typec/tcpm/fusb302.c @@ -1467,7 +1467,7 @@ static int fusb302_pd_read_message(struct fusb302_chip *chip, if ((!len) && (pd_header_type_le(msg->header) == PD_CTRL_GOOD_CRC)) tcpm_pd_transmit_complete(chip->tcpm_port, TCPC_TX_SUCCESS); else - tcpm_pd_receive(chip->tcpm_port, msg); + tcpm_pd_receive(chip->tcpm_port, msg, TCPC_TX_SOP); return ret; } diff --git a/drivers/usb/typec/tcpm/qcom/Makefile b/drivers/usb/typec/tcpm/qcom/Makefile index dc1e8832e197a6..cc23042b948785 100644 --- a/drivers/usb/typec/tcpm/qcom/Makefile +++ b/drivers/usb/typec/tcpm/qcom/Makefile @@ -3,4 +3,5 @@ obj-$(CONFIG_TYPEC_QCOM_PMIC) += qcom_pmic_tcpm.o qcom_pmic_tcpm-y += qcom_pmic_typec.o \ qcom_pmic_typec_port.o \ - qcom_pmic_typec_pdphy.o + qcom_pmic_typec_pdphy.o \ + qcom_pmic_typec_pdphy_stub.o \ diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c index 1a2b4bddaa97e8..e48412cdcb0fb5 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c @@ -20,130 +20,15 @@ #include <drm/bridge/aux-bridge.h> +#include "qcom_pmic_typec.h" #include "qcom_pmic_typec_pdphy.h" #include "qcom_pmic_typec_port.h" struct pmic_typec_resources { - struct pmic_typec_pdphy_resources *pdphy_res; - struct pmic_typec_port_resources *port_res; + const struct pmic_typec_pdphy_resources *pdphy_res; + const struct pmic_typec_port_resources *port_res; }; -struct pmic_typec { - struct device *dev; - struct tcpm_port *tcpm_port; - struct tcpc_dev tcpc; - struct pmic_typec_pdphy *pmic_typec_pdphy; - struct pmic_typec_port *pmic_typec_port; - bool vbus_enabled; - struct mutex lock; /* VBUS state serialization */ -}; - -#define tcpc_to_tcpm(_tcpc_) container_of(_tcpc_, struct pmic_typec, tcpc) - -static int qcom_pmic_typec_get_vbus(struct tcpc_dev *tcpc) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - int ret; - - mutex_lock(&tcpm->lock); - ret = tcpm->vbus_enabled || qcom_pmic_typec_port_get_vbus(tcpm->pmic_typec_port); - mutex_unlock(&tcpm->lock); - - return ret; -} - -static int qcom_pmic_typec_set_vbus(struct tcpc_dev *tcpc, bool on, bool sink) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - int ret = 0; - - mutex_lock(&tcpm->lock); - if (tcpm->vbus_enabled == on) - goto done; - - ret = qcom_pmic_typec_port_set_vbus(tcpm->pmic_typec_port, on); - if (ret) - goto done; - - tcpm->vbus_enabled = on; - tcpm_vbus_change(tcpm->tcpm_port); - -done: - dev_dbg(tcpm->dev, "set_vbus set: %d result %d\n", on, ret); - mutex_unlock(&tcpm->lock); - - return ret; -} - -static int qcom_pmic_typec_set_vconn(struct tcpc_dev *tcpc, bool on) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - - return qcom_pmic_typec_port_set_vconn(tcpm->pmic_typec_port, on); -} - -static int qcom_pmic_typec_get_cc(struct tcpc_dev *tcpc, - enum typec_cc_status *cc1, - enum typec_cc_status *cc2) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - - return qcom_pmic_typec_port_get_cc(tcpm->pmic_typec_port, cc1, cc2); -} - -static int qcom_pmic_typec_set_cc(struct tcpc_dev *tcpc, - enum typec_cc_status cc) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - - return qcom_pmic_typec_port_set_cc(tcpm->pmic_typec_port, cc); -} - -static int qcom_pmic_typec_set_polarity(struct tcpc_dev *tcpc, - enum typec_cc_polarity pol) -{ - /* Polarity is set separately by phy-qcom-qmp.c */ - return 0; -} - -static int qcom_pmic_typec_start_toggling(struct tcpc_dev *tcpc, - enum typec_port_type port_type, - enum typec_cc_status cc) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - - return qcom_pmic_typec_port_start_toggling(tcpm->pmic_typec_port, - port_type, cc); -} - -static int qcom_pmic_typec_set_roles(struct tcpc_dev *tcpc, bool attached, - enum typec_role power_role, - enum typec_data_role data_role) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - - return qcom_pmic_typec_pdphy_set_roles(tcpm->pmic_typec_pdphy, - data_role, power_role); -} - -static int qcom_pmic_typec_set_pd_rx(struct tcpc_dev *tcpc, bool on) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - - return qcom_pmic_typec_pdphy_set_pd_rx(tcpm->pmic_typec_pdphy, on); -} - -static int qcom_pmic_typec_pd_transmit(struct tcpc_dev *tcpc, - enum tcpm_transmit_type type, - const struct pd_message *msg, - unsigned int negotiated_rev) -{ - struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); - - return qcom_pmic_typec_pdphy_pd_transmit(tcpm->pmic_typec_pdphy, type, - msg, negotiated_rev); -} - static int qcom_pmic_typec_init(struct tcpc_dev *tcpc) { return 0; @@ -157,7 +42,7 @@ static int qcom_pmic_typec_probe(struct platform_device *pdev) const struct pmic_typec_resources *res; struct regmap *regmap; struct device *bridge_dev; - u32 base[2]; + u32 base; int ret; res = of_device_get_match_data(dev); @@ -170,16 +55,6 @@ static int qcom_pmic_typec_probe(struct platform_device *pdev) tcpm->dev = dev; tcpm->tcpc.init = qcom_pmic_typec_init; - tcpm->tcpc.get_vbus = qcom_pmic_typec_get_vbus; - tcpm->tcpc.set_vbus = qcom_pmic_typec_set_vbus; - tcpm->tcpc.set_cc = qcom_pmic_typec_set_cc; - tcpm->tcpc.get_cc = qcom_pmic_typec_get_cc; - tcpm->tcpc.set_polarity = qcom_pmic_typec_set_polarity; - tcpm->tcpc.set_vconn = qcom_pmic_typec_set_vconn; - tcpm->tcpc.start_toggling = qcom_pmic_typec_start_toggling; - tcpm->tcpc.set_pd_rx = qcom_pmic_typec_set_pd_rx; - tcpm->tcpc.set_roles = qcom_pmic_typec_set_roles; - tcpm->tcpc.pd_transmit = qcom_pmic_typec_pd_transmit; regmap = dev_get_regmap(dev->parent, NULL); if (!regmap) { @@ -187,29 +62,30 @@ static int qcom_pmic_typec_probe(struct platform_device *pdev) return -ENODEV; } - ret = of_property_read_u32_array(np, "reg", base, 2); + ret = of_property_read_u32_index(np, "reg", 0, &base); if (ret) return ret; - tcpm->pmic_typec_port = qcom_pmic_typec_port_alloc(dev); - if (IS_ERR(tcpm->pmic_typec_port)) - return PTR_ERR(tcpm->pmic_typec_port); - - tcpm->pmic_typec_pdphy = qcom_pmic_typec_pdphy_alloc(dev); - if (IS_ERR(tcpm->pmic_typec_pdphy)) - return PTR_ERR(tcpm->pmic_typec_pdphy); - - ret = qcom_pmic_typec_port_probe(pdev, tcpm->pmic_typec_port, - res->port_res, regmap, base[0]); + ret = qcom_pmic_typec_port_probe(pdev, tcpm, + res->port_res, regmap, base); if (ret) return ret; - ret = qcom_pmic_typec_pdphy_probe(pdev, tcpm->pmic_typec_pdphy, - res->pdphy_res, regmap, base[1]); - if (ret) - return ret; + if (res->pdphy_res) { + ret = of_property_read_u32_index(np, "reg", 1, &base); + if (ret) + return ret; + + ret = qcom_pmic_typec_pdphy_probe(pdev, tcpm, + res->pdphy_res, regmap, base); + if (ret) + return ret; + } else { + ret = qcom_pmic_typec_pdphy_stub_probe(pdev, tcpm); + if (ret) + return ret; + } - mutex_init(&tcpm->lock); platform_set_drvdata(pdev, tcpm); tcpm->tcpc.fwnode = device_get_named_child_node(tcpm->dev, "connector"); @@ -226,13 +102,11 @@ static int qcom_pmic_typec_probe(struct platform_device *pdev) goto fwnode_remove; } - ret = qcom_pmic_typec_port_start(tcpm->pmic_typec_port, - tcpm->tcpm_port); + ret = tcpm->port_start(tcpm, tcpm->tcpm_port); if (ret) goto fwnode_remove; - ret = qcom_pmic_typec_pdphy_start(tcpm->pmic_typec_pdphy, - tcpm->tcpm_port); + ret = tcpm->pdphy_start(tcpm, tcpm->tcpm_port); if (ret) goto fwnode_remove; @@ -248,91 +122,25 @@ static void qcom_pmic_typec_remove(struct platform_device *pdev) { struct pmic_typec *tcpm = platform_get_drvdata(pdev); - qcom_pmic_typec_pdphy_stop(tcpm->pmic_typec_pdphy); - qcom_pmic_typec_port_stop(tcpm->pmic_typec_port); + tcpm->pdphy_stop(tcpm); + tcpm->port_stop(tcpm); tcpm_unregister_port(tcpm->tcpm_port); fwnode_remove_software_node(tcpm->tcpc.fwnode); } -static struct pmic_typec_pdphy_resources pm8150b_pdphy_res = { - .irq_params = { - { - .virq = PMIC_PDPHY_SIG_TX_IRQ, - .irq_name = "sig-tx", - }, - { - .virq = PMIC_PDPHY_SIG_RX_IRQ, - .irq_name = "sig-rx", - }, - { - .virq = PMIC_PDPHY_MSG_TX_IRQ, - .irq_name = "msg-tx", - }, - { - .virq = PMIC_PDPHY_MSG_RX_IRQ, - .irq_name = "msg-rx", - }, - { - .virq = PMIC_PDPHY_MSG_TX_FAIL_IRQ, - .irq_name = "msg-tx-failed", - }, - { - .virq = PMIC_PDPHY_MSG_TX_DISCARD_IRQ, - .irq_name = "msg-tx-discarded", - }, - { - .virq = PMIC_PDPHY_MSG_RX_DISCARD_IRQ, - .irq_name = "msg-rx-discarded", - }, - }, - .nr_irqs = 7, -}; - -static struct pmic_typec_port_resources pm8150b_port_res = { - .irq_params = { - { - .irq_name = "vpd-detect", - .virq = PMIC_TYPEC_VPD_IRQ, - }, - - { - .irq_name = "cc-state-change", - .virq = PMIC_TYPEC_CC_STATE_IRQ, - }, - { - .irq_name = "vconn-oc", - .virq = PMIC_TYPEC_VCONN_OC_IRQ, - }, - - { - .irq_name = "vbus-change", - .virq = PMIC_TYPEC_VBUS_IRQ, - }, - - { - .irq_name = "attach-detach", - .virq = PMIC_TYPEC_ATTACH_DETACH_IRQ, - }, - { - .irq_name = "legacy-cable-detect", - .virq = PMIC_TYPEC_LEGACY_CABLE_IRQ, - }, - - { - .irq_name = "try-snk-src-detect", - .virq = PMIC_TYPEC_TRY_SNK_SRC_IRQ, - }, - }, - .nr_irqs = 7, +static const struct pmic_typec_resources pm8150b_typec_res = { + .pdphy_res = &pm8150b_pdphy_res, + .port_res = &pm8150b_port_res, }; -static struct pmic_typec_resources pm8150b_typec_res = { - .pdphy_res = &pm8150b_pdphy_res, +static const struct pmic_typec_resources pmi632_typec_res = { + /* PD PHY not present */ .port_res = &pm8150b_port_res, }; static const struct of_device_id qcom_pmic_typec_table[] = { { .compatible = "qcom,pm8150b-typec", .data = &pm8150b_typec_res }, + { .compatible = "qcom,pmi632-typec", .data = &pmi632_typec_res }, { } }; MODULE_DEVICE_TABLE(of, qcom_pmic_typec_table); diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.h b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.h new file mode 100644 index 00000000000000..3c75820c918763 --- /dev/null +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.h @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2023, Linaro Ltd. All rights reserved. + */ + +#ifndef __QCOM_PMIC_TYPEC_H__ +#define __QCOM_PMIC_TYPEC_H__ + +struct pmic_typec { + struct device *dev; + struct tcpm_port *tcpm_port; + struct tcpc_dev tcpc; + struct pmic_typec_pdphy *pmic_typec_pdphy; + struct pmic_typec_port *pmic_typec_port; + + int (*pdphy_start)(struct pmic_typec *tcpm, + struct tcpm_port *tcpm_port); + void (*pdphy_stop)(struct pmic_typec *tcpm); + + int (*port_start)(struct pmic_typec *tcpm, + struct tcpm_port *tcpm_port); + void (*port_stop)(struct pmic_typec *tcpm); +}; + +#define tcpc_to_tcpm(_tcpc_) container_of(_tcpc_, struct pmic_typec, tcpc) + +#endif diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c index 52c81378e36ef4..6560f4fc98d5a3 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.c @@ -14,8 +14,74 @@ #include <linux/slab.h> #include <linux/usb/pd.h> #include <linux/usb/tcpm.h> +#include "qcom_pmic_typec.h" #include "qcom_pmic_typec_pdphy.h" +/* PD PHY register offsets and bit fields */ +#define USB_PDPHY_MSG_CONFIG_REG 0x40 +#define MSG_CONFIG_PORT_DATA_ROLE BIT(3) +#define MSG_CONFIG_PORT_POWER_ROLE BIT(2) +#define MSG_CONFIG_SPEC_REV_MASK (BIT(1) | BIT(0)) + +#define USB_PDPHY_EN_CONTROL_REG 0x46 +#define CONTROL_ENABLE BIT(0) + +#define USB_PDPHY_RX_STATUS_REG 0x4A +#define RX_FRAME_TYPE (BIT(0) | BIT(1) | BIT(2)) + +#define USB_PDPHY_FRAME_FILTER_REG 0x4C +#define FRAME_FILTER_EN_HARD_RESET BIT(5) +#define FRAME_FILTER_EN_SOP BIT(0) + +#define USB_PDPHY_TX_SIZE_REG 0x42 +#define TX_SIZE_MASK 0xF + +#define USB_PDPHY_TX_CONTROL_REG 0x44 +#define TX_CONTROL_RETRY_COUNT(n) (((n) & 0x3) << 5) +#define TX_CONTROL_FRAME_TYPE(n) (((n) & 0x7) << 2) +#define TX_CONTROL_FRAME_TYPE_CABLE_RESET (0x1 << 2) +#define TX_CONTROL_SEND_SIGNAL BIT(1) +#define TX_CONTROL_SEND_MSG BIT(0) + +#define USB_PDPHY_RX_SIZE_REG 0x48 + +#define USB_PDPHY_RX_ACKNOWLEDGE_REG 0x4B +#define RX_BUFFER_TOKEN BIT(0) + +#define USB_PDPHY_BIST_MODE_REG 0x4E +#define BIST_MODE_MASK 0xF +#define BIST_ENABLE BIT(7) +#define PD_MSG_BIST 0x3 +#define PD_BIST_TEST_DATA_MODE 0x8 + +#define USB_PDPHY_TX_BUFFER_HDR_REG 0x60 +#define USB_PDPHY_TX_BUFFER_DATA_REG 0x62 + +#define USB_PDPHY_RX_BUFFER_REG 0x80 + +/* VDD regulator */ +#define VDD_PDPHY_VOL_MIN 2800000 /* uV */ +#define VDD_PDPHY_VOL_MAX 3300000 /* uV */ +#define VDD_PDPHY_HPM_LOAD 3000 /* uA */ + +/* Message Spec Rev field */ +#define PD_MSG_HDR_REV(hdr) (((hdr) >> 6) & 3) + +/* timers */ +#define RECEIVER_RESPONSE_TIME 15 /* tReceiverResponse */ +#define HARD_RESET_COMPLETE_TIME 5 /* tHardResetComplete */ + +/* Interrupt numbers */ +#define PMIC_PDPHY_SIG_TX_IRQ 0x0 +#define PMIC_PDPHY_SIG_RX_IRQ 0x1 +#define PMIC_PDPHY_MSG_TX_IRQ 0x2 +#define PMIC_PDPHY_MSG_RX_IRQ 0x3 +#define PMIC_PDPHY_MSG_TX_FAIL_IRQ 0x4 +#define PMIC_PDPHY_MSG_TX_DISCARD_IRQ 0x5 +#define PMIC_PDPHY_MSG_RX_DISCARD_IRQ 0x6 +#define PMIC_PDPHY_FR_SWAP_IRQ 0x7 + + struct pmic_typec_pdphy_irq_data { int virq; int irq; @@ -231,11 +297,13 @@ done: return ret; } -int qcom_pmic_typec_pdphy_pd_transmit(struct pmic_typec_pdphy *pmic_typec_pdphy, - enum tcpm_transmit_type type, - const struct pd_message *msg, - unsigned int negotiated_rev) +static int qcom_pmic_typec_pdphy_pd_transmit(struct tcpc_dev *tcpc, + enum tcpm_transmit_type type, + const struct pd_message *msg, + unsigned int negotiated_rev) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; struct device *dev = pmic_typec_pdphy->dev; int ret; @@ -299,7 +367,7 @@ done: if (!ret) { dev_vdbg(dev, "pd_receive: handing %d bytes to tcpm\n", size); - tcpm_pd_receive(pmic_typec_pdphy->tcpm_port, &msg); + tcpm_pd_receive(pmic_typec_pdphy->tcpm_port, &msg, TCPC_TX_SOP); } } @@ -336,8 +404,10 @@ static irqreturn_t qcom_pmic_typec_pdphy_isr(int irq, void *dev_id) return IRQ_HANDLED; } -int qcom_pmic_typec_pdphy_set_pd_rx(struct pmic_typec_pdphy *pmic_typec_pdphy, bool on) +static int qcom_pmic_typec_pdphy_set_pd_rx(struct tcpc_dev *tcpc, bool on) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; unsigned long flags; int ret; @@ -353,9 +423,12 @@ int qcom_pmic_typec_pdphy_set_pd_rx(struct pmic_typec_pdphy *pmic_typec_pdphy, b return ret; } -int qcom_pmic_typec_pdphy_set_roles(struct pmic_typec_pdphy *pmic_typec_pdphy, - bool data_role_host, bool power_role_src) +static int qcom_pmic_typec_pdphy_set_roles(struct tcpc_dev *tcpc, bool attached, + enum typec_role power_role, + enum typec_data_role data_role) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; struct device *dev = pmic_typec_pdphy->dev; unsigned long flags; int ret; @@ -366,12 +439,13 @@ int qcom_pmic_typec_pdphy_set_roles(struct pmic_typec_pdphy *pmic_typec_pdphy, pmic_typec_pdphy->base + USB_PDPHY_MSG_CONFIG_REG, MSG_CONFIG_PORT_DATA_ROLE | MSG_CONFIG_PORT_POWER_ROLE, - data_role_host << 3 | power_role_src << 2); + (data_role == TYPEC_HOST ? MSG_CONFIG_PORT_DATA_ROLE : 0) | + (power_role == TYPEC_SOURCE ? MSG_CONFIG_PORT_POWER_ROLE : 0)); spin_unlock_irqrestore(&pmic_typec_pdphy->lock, flags); dev_dbg(dev, "pdphy_set_roles: data_role_host=%d power_role_src=%d\n", - data_role_host, power_role_src); + data_role, power_role); return ret; } @@ -435,9 +509,10 @@ done: return ret; } -int qcom_pmic_typec_pdphy_start(struct pmic_typec_pdphy *pmic_typec_pdphy, - struct tcpm_port *tcpm_port) +static int qcom_pmic_typec_pdphy_start(struct pmic_typec *tcpm, + struct tcpm_port *tcpm_port) { + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; int i; int ret; @@ -457,8 +532,9 @@ int qcom_pmic_typec_pdphy_start(struct pmic_typec_pdphy *pmic_typec_pdphy, return 0; } -void qcom_pmic_typec_pdphy_stop(struct pmic_typec_pdphy *pmic_typec_pdphy) +static void qcom_pmic_typec_pdphy_stop(struct pmic_typec *tcpm) { + struct pmic_typec_pdphy *pmic_typec_pdphy = tcpm->pmic_typec_pdphy; int i; for (i = 0; i < pmic_typec_pdphy->nr_irqs; i++) @@ -469,21 +545,21 @@ void qcom_pmic_typec_pdphy_stop(struct pmic_typec_pdphy *pmic_typec_pdphy) regulator_disable(pmic_typec_pdphy->vdd_pdphy); } -struct pmic_typec_pdphy *qcom_pmic_typec_pdphy_alloc(struct device *dev) -{ - return devm_kzalloc(dev, sizeof(struct pmic_typec_pdphy), GFP_KERNEL); -} - int qcom_pmic_typec_pdphy_probe(struct platform_device *pdev, - struct pmic_typec_pdphy *pmic_typec_pdphy, - struct pmic_typec_pdphy_resources *res, + struct pmic_typec *tcpm, + const struct pmic_typec_pdphy_resources *res, struct regmap *regmap, u32 base) { + struct pmic_typec_pdphy *pmic_typec_pdphy; struct device *dev = &pdev->dev; struct pmic_typec_pdphy_irq_data *irq_data; int i, ret, irq; + pmic_typec_pdphy = devm_kzalloc(dev, sizeof(*pmic_typec_pdphy), GFP_KERNEL); + if (!pmic_typec_pdphy) + return -ENOMEM; + if (!res->nr_irqs || res->nr_irqs > PMIC_PDPHY_MAX_IRQS) return -EINVAL; @@ -522,5 +598,48 @@ int qcom_pmic_typec_pdphy_probe(struct platform_device *pdev, return ret; } + tcpm->pmic_typec_pdphy = pmic_typec_pdphy; + + tcpm->tcpc.set_pd_rx = qcom_pmic_typec_pdphy_set_pd_rx; + tcpm->tcpc.set_roles = qcom_pmic_typec_pdphy_set_roles; + tcpm->tcpc.pd_transmit = qcom_pmic_typec_pdphy_pd_transmit; + + tcpm->pdphy_start = qcom_pmic_typec_pdphy_start; + tcpm->pdphy_stop = qcom_pmic_typec_pdphy_stop; + return 0; } + +const struct pmic_typec_pdphy_resources pm8150b_pdphy_res = { + .irq_params = { + { + .virq = PMIC_PDPHY_SIG_TX_IRQ, + .irq_name = "sig-tx", + }, + { + .virq = PMIC_PDPHY_SIG_RX_IRQ, + .irq_name = "sig-rx", + }, + { + .virq = PMIC_PDPHY_MSG_TX_IRQ, + .irq_name = "msg-tx", + }, + { + .virq = PMIC_PDPHY_MSG_RX_IRQ, + .irq_name = "msg-rx", + }, + { + .virq = PMIC_PDPHY_MSG_TX_FAIL_IRQ, + .irq_name = "msg-tx-failed", + }, + { + .virq = PMIC_PDPHY_MSG_TX_DISCARD_IRQ, + .irq_name = "msg-tx-discarded", + }, + { + .virq = PMIC_PDPHY_MSG_RX_DISCARD_IRQ, + .irq_name = "msg-rx-discarded", + }, + }, + .nr_irqs = 7, +}; diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h index e67954e31b149c..04dee20293cfad 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy.h @@ -8,74 +8,6 @@ #include <linux/platform_device.h> #include <linux/regmap.h> -#include <linux/usb/tcpm.h> - -#define USB_PDPHY_MAX_DATA_OBJ_LEN 28 -#define USB_PDPHY_MSG_HDR_LEN 2 - -/* PD PHY register offsets and bit fields */ -#define USB_PDPHY_MSG_CONFIG_REG 0x40 -#define MSG_CONFIG_PORT_DATA_ROLE BIT(3) -#define MSG_CONFIG_PORT_POWER_ROLE BIT(2) -#define MSG_CONFIG_SPEC_REV_MASK (BIT(1) | BIT(0)) - -#define USB_PDPHY_EN_CONTROL_REG 0x46 -#define CONTROL_ENABLE BIT(0) - -#define USB_PDPHY_RX_STATUS_REG 0x4A -#define RX_FRAME_TYPE (BIT(0) | BIT(1) | BIT(2)) - -#define USB_PDPHY_FRAME_FILTER_REG 0x4C -#define FRAME_FILTER_EN_HARD_RESET BIT(5) -#define FRAME_FILTER_EN_SOP BIT(0) - -#define USB_PDPHY_TX_SIZE_REG 0x42 -#define TX_SIZE_MASK 0xF - -#define USB_PDPHY_TX_CONTROL_REG 0x44 -#define TX_CONTROL_RETRY_COUNT(n) (((n) & 0x3) << 5) -#define TX_CONTROL_FRAME_TYPE(n) (((n) & 0x7) << 2) -#define TX_CONTROL_FRAME_TYPE_CABLE_RESET (0x1 << 2) -#define TX_CONTROL_SEND_SIGNAL BIT(1) -#define TX_CONTROL_SEND_MSG BIT(0) - -#define USB_PDPHY_RX_SIZE_REG 0x48 - -#define USB_PDPHY_RX_ACKNOWLEDGE_REG 0x4B -#define RX_BUFFER_TOKEN BIT(0) - -#define USB_PDPHY_BIST_MODE_REG 0x4E -#define BIST_MODE_MASK 0xF -#define BIST_ENABLE BIT(7) -#define PD_MSG_BIST 0x3 -#define PD_BIST_TEST_DATA_MODE 0x8 - -#define USB_PDPHY_TX_BUFFER_HDR_REG 0x60 -#define USB_PDPHY_TX_BUFFER_DATA_REG 0x62 - -#define USB_PDPHY_RX_BUFFER_REG 0x80 - -/* VDD regulator */ -#define VDD_PDPHY_VOL_MIN 2800000 /* uV */ -#define VDD_PDPHY_VOL_MAX 3300000 /* uV */ -#define VDD_PDPHY_HPM_LOAD 3000 /* uA */ - -/* Message Spec Rev field */ -#define PD_MSG_HDR_REV(hdr) (((hdr) >> 6) & 3) - -/* timers */ -#define RECEIVER_RESPONSE_TIME 15 /* tReceiverResponse */ -#define HARD_RESET_COMPLETE_TIME 5 /* tHardResetComplete */ - -/* Interrupt numbers */ -#define PMIC_PDPHY_SIG_TX_IRQ 0x0 -#define PMIC_PDPHY_SIG_RX_IRQ 0x1 -#define PMIC_PDPHY_MSG_TX_IRQ 0x2 -#define PMIC_PDPHY_MSG_RX_IRQ 0x3 -#define PMIC_PDPHY_MSG_TX_FAIL_IRQ 0x4 -#define PMIC_PDPHY_MSG_TX_DISCARD_IRQ 0x5 -#define PMIC_PDPHY_MSG_RX_DISCARD_IRQ 0x6 -#define PMIC_PDPHY_FR_SWAP_IRQ 0x7 /* Resources */ #define PMIC_PDPHY_MAX_IRQS 0x08 @@ -87,33 +19,19 @@ struct pmic_typec_pdphy_irq_params { struct pmic_typec_pdphy_resources { unsigned int nr_irqs; - struct pmic_typec_pdphy_irq_params irq_params[PMIC_PDPHY_MAX_IRQS]; + const struct pmic_typec_pdphy_irq_params irq_params[PMIC_PDPHY_MAX_IRQS]; }; /* API */ struct pmic_typec_pdphy; -struct pmic_typec_pdphy *qcom_pmic_typec_pdphy_alloc(struct device *dev); - +extern const struct pmic_typec_pdphy_resources pm8150b_pdphy_res; int qcom_pmic_typec_pdphy_probe(struct platform_device *pdev, - struct pmic_typec_pdphy *pmic_typec_pdphy, - struct pmic_typec_pdphy_resources *res, + struct pmic_typec *tcpm, + const struct pmic_typec_pdphy_resources *res, struct regmap *regmap, u32 base); - -int qcom_pmic_typec_pdphy_start(struct pmic_typec_pdphy *pmic_typec_pdphy, - struct tcpm_port *tcpm_port); - -void qcom_pmic_typec_pdphy_stop(struct pmic_typec_pdphy *pmic_typec_pdphy); - -int qcom_pmic_typec_pdphy_set_roles(struct pmic_typec_pdphy *pmic_typec_pdphy, - bool power_role_src, bool data_role_host); - -int qcom_pmic_typec_pdphy_set_pd_rx(struct pmic_typec_pdphy *pmic_typec_pdphy, bool on); - -int qcom_pmic_typec_pdphy_pd_transmit(struct pmic_typec_pdphy *pmic_typec_pdphy, - enum tcpm_transmit_type type, - const struct pd_message *msg, - unsigned int negotiated_rev); +int qcom_pmic_typec_pdphy_stub_probe(struct platform_device *pdev, + struct pmic_typec *tcpm); #endif /* __QCOM_PMIC_TYPEC_PDPHY_H__ */ diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy_stub.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy_stub.c new file mode 100644 index 00000000000000..df79059cda6755 --- /dev/null +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_pdphy_stub.c @@ -0,0 +1,80 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2024, Linaro Ltd. All rights reserved. + */ + +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/slab.h> +#include <linux/usb/pd.h> +#include <linux/usb/tcpm.h> +#include "qcom_pmic_typec.h" +#include "qcom_pmic_typec_pdphy.h" + +static int qcom_pmic_typec_pdphy_stub_pd_transmit(struct tcpc_dev *tcpc, + enum tcpm_transmit_type type, + const struct pd_message *msg, + unsigned int negotiated_rev) +{ + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct device *dev = tcpm->dev; + + dev_dbg(dev, "pdphy_transmit: type=%d\n", type); + + tcpm_pd_transmit_complete(tcpm->tcpm_port, + TCPC_TX_SUCCESS); + + return 0; +} + +static int qcom_pmic_typec_pdphy_stub_set_pd_rx(struct tcpc_dev *tcpc, bool on) +{ + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct device *dev = tcpm->dev; + + dev_dbg(dev, "set_pd_rx: %s\n", on ? "on" : "off"); + + return 0; +} + +static int qcom_pmic_typec_pdphy_stub_set_roles(struct tcpc_dev *tcpc, bool attached, + enum typec_role power_role, + enum typec_data_role data_role) +{ + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct device *dev = tcpm->dev; + + dev_dbg(dev, "pdphy_set_roles: data_role_host=%d power_role_src=%d\n", + data_role, power_role); + + return 0; +} + +static int qcom_pmic_typec_pdphy_stub_start(struct pmic_typec *tcpm, + struct tcpm_port *tcpm_port) +{ + return 0; +} + +static void qcom_pmic_typec_pdphy_stub_stop(struct pmic_typec *tcpm) +{ +} + +int qcom_pmic_typec_pdphy_stub_probe(struct platform_device *pdev, + struct pmic_typec *tcpm) +{ + tcpm->tcpc.set_pd_rx = qcom_pmic_typec_pdphy_stub_set_pd_rx; + tcpm->tcpc.set_roles = qcom_pmic_typec_pdphy_stub_set_roles; + tcpm->tcpc.pd_transmit = qcom_pmic_typec_pdphy_stub_pd_transmit; + + tcpm->pdphy_start = qcom_pmic_typec_pdphy_stub_start; + tcpm->pdphy_stop = qcom_pmic_typec_pdphy_stub_stop; + + return 0; +} diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c index a8f3f4d3a4509d..a747baa2978498 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.c @@ -16,8 +16,147 @@ #include <linux/usb/tcpm.h> #include <linux/usb/typec_mux.h> #include <linux/workqueue.h> + +#include "qcom_pmic_typec.h" #include "qcom_pmic_typec_port.h" +#define TYPEC_SNK_STATUS_REG 0x06 +#define DETECTED_SNK_TYPE_MASK GENMASK(6, 0) +#define SNK_DAM_MASK GENMASK(6, 4) +#define SNK_DAM_500MA BIT(6) +#define SNK_DAM_1500MA BIT(5) +#define SNK_DAM_3000MA BIT(4) +#define SNK_RP_STD BIT(3) +#define SNK_RP_1P5 BIT(2) +#define SNK_RP_3P0 BIT(1) +#define SNK_RP_SHORT BIT(0) + +#define TYPEC_SRC_STATUS_REG 0x08 +#define DETECTED_SRC_TYPE_MASK GENMASK(4, 0) +#define SRC_HIGH_BATT BIT(5) +#define SRC_DEBUG_ACCESS BIT(4) +#define SRC_RD_OPEN BIT(3) +#define SRC_RD_RA_VCONN BIT(2) +#define SRC_RA_OPEN BIT(1) +#define AUDIO_ACCESS_RA_RA BIT(0) + +#define TYPEC_STATE_MACHINE_STATUS_REG 0x09 +#define TYPEC_ATTACH_DETACH_STATE BIT(5) + +#define TYPEC_SM_STATUS_REG 0x0A +#define TYPEC_SM_VBUS_VSAFE5V BIT(5) +#define TYPEC_SM_VBUS_VSAFE0V BIT(6) +#define TYPEC_SM_USBIN_LT_LV BIT(7) + +#define TYPEC_MISC_STATUS_REG 0x0B +#define TYPEC_WATER_DETECTION_STATUS BIT(7) +#define SNK_SRC_MODE BIT(6) +#define TYPEC_VBUS_DETECT BIT(5) +#define TYPEC_VBUS_ERROR_STATUS BIT(4) +#define TYPEC_DEBOUNCE_DONE BIT(3) +#define CC_ORIENTATION BIT(1) +#define CC_ATTACHED BIT(0) + +#define LEGACY_CABLE_STATUS_REG 0x0D +#define TYPEC_LEGACY_CABLE_STATUS BIT(1) +#define TYPEC_NONCOMP_LEGACY_CABLE_STATUS BIT(0) + +#define TYPEC_U_USB_STATUS_REG 0x0F +#define U_USB_GROUND_NOVBUS BIT(6) +#define U_USB_GROUND BIT(4) +#define U_USB_FMB1 BIT(3) +#define U_USB_FLOAT1 BIT(2) +#define U_USB_FMB2 BIT(1) +#define U_USB_FLOAT2 BIT(0) + +#define TYPEC_MODE_CFG_REG 0x44 +#define TYPEC_TRY_MODE_MASK GENMASK(4, 3) +#define EN_TRY_SNK BIT(4) +#define EN_TRY_SRC BIT(3) +#define TYPEC_POWER_ROLE_CMD_MASK GENMASK(2, 0) +#define EN_SRC_ONLY BIT(2) +#define EN_SNK_ONLY BIT(1) +#define TYPEC_DISABLE_CMD BIT(0) + +#define TYPEC_VCONN_CONTROL_REG 0x46 +#define VCONN_EN_ORIENTATION BIT(2) +#define VCONN_EN_VALUE BIT(1) +#define VCONN_EN_SRC BIT(0) + +#define TYPEC_CCOUT_CONTROL_REG 0x48 +#define TYPEC_CCOUT_BUFFER_EN BIT(2) +#define TYPEC_CCOUT_VALUE BIT(1) +#define TYPEC_CCOUT_SRC BIT(0) + +#define DEBUG_ACCESS_SRC_CFG_REG 0x4C +#define EN_UNORIENTED_DEBUG_ACCESS_SRC BIT(0) + +#define TYPE_C_CRUDE_SENSOR_CFG_REG 0x4e +#define EN_SRC_CRUDE_SENSOR BIT(1) +#define EN_SNK_CRUDE_SENSOR BIT(0) + +#define TYPEC_EXIT_STATE_CFG_REG 0x50 +#define BYPASS_VSAFE0V_DURING_ROLE_SWAP BIT(3) +#define SEL_SRC_UPPER_REF BIT(2) +#define USE_TPD_FOR_EXITING_ATTACHSRC BIT(1) +#define EXIT_SNK_BASED_ON_CC BIT(0) + +#define TYPEC_CURRSRC_CFG_REG 0x52 +#define TYPEC_SRC_RP_SEL_330UA BIT(1) +#define TYPEC_SRC_RP_SEL_180UA BIT(0) +#define TYPEC_SRC_RP_SEL_80UA 0 +#define TYPEC_SRC_RP_SEL_MASK GENMASK(1, 0) + +#define TYPEC_INTERRUPT_EN_CFG_1_REG 0x5E +#define TYPEC_LEGACY_CABLE_INT_EN BIT(7) +#define TYPEC_NONCOMPLIANT_LEGACY_CABLE_INT_EN BIT(6) +#define TYPEC_TRYSOURCE_DETECT_INT_EN BIT(5) +#define TYPEC_TRYSINK_DETECT_INT_EN BIT(4) +#define TYPEC_CCOUT_DETACH_INT_EN BIT(3) +#define TYPEC_CCOUT_ATTACH_INT_EN BIT(2) +#define TYPEC_VBUS_DEASSERT_INT_EN BIT(1) +#define TYPEC_VBUS_ASSERT_INT_EN BIT(0) + +#define TYPEC_INTERRUPT_EN_CFG_2_REG 0x60 +#define TYPEC_SRC_BATT_HPWR_INT_EN BIT(6) +#define MICRO_USB_STATE_CHANGE_INT_EN BIT(5) +#define TYPEC_STATE_MACHINE_CHANGE_INT_EN BIT(4) +#define TYPEC_DEBUG_ACCESS_DETECT_INT_EN BIT(3) +#define TYPEC_WATER_DETECTION_INT_EN BIT(2) +#define TYPEC_VBUS_ERROR_INT_EN BIT(1) +#define TYPEC_DEBOUNCE_DONE_INT_EN BIT(0) + +#define TYPEC_DEBOUNCE_OPTION_REG 0x62 +#define REDUCE_TCCDEBOUNCE_TO_2MS BIT(2) + +#define TYPE_C_SBU_CFG_REG 0x6A +#define SEL_SBU1_ISRC_VAL 0x04 +#define SEL_SBU2_ISRC_VAL 0x01 + +#define TYPEC_U_USB_CFG_REG 0x70 +#define EN_MICRO_USB_FACTORY_MODE BIT(1) +#define EN_MICRO_USB_MODE BIT(0) + +#define TYPEC_PMI632_U_USB_WATER_PROTECTION_CFG_REG 0x72 + +#define TYPEC_U_USB_WATER_PROTECTION_CFG_REG 0x73 +#define EN_MICRO_USB_WATER_PROTECTION BIT(4) +#define MICRO_USB_DETECTION_ON_TIME_CFG_MASK GENMASK(3, 2) +#define MICRO_USB_DETECTION_PERIOD_CFG_MASK GENMASK(1, 0) + +#define TYPEC_PMI632_MICRO_USB_MODE_REG 0x73 +#define MICRO_USB_MODE_ONLY BIT(0) + +/* Interrupt numbers */ +#define PMIC_TYPEC_OR_RID_IRQ 0x0 +#define PMIC_TYPEC_VPD_IRQ 0x1 +#define PMIC_TYPEC_CC_STATE_IRQ 0x2 +#define PMIC_TYPEC_VCONN_OC_IRQ 0x3 +#define PMIC_TYPEC_VBUS_IRQ 0x4 +#define PMIC_TYPEC_ATTACH_DETACH_IRQ 0x5 +#define PMIC_TYPEC_LEGACY_CABLE_IRQ 0x6 +#define PMIC_TYPEC_TRY_SNK_SRC_IRQ 0x7 + struct pmic_typec_port_irq_data { int virq; int irq; @@ -33,6 +172,8 @@ struct pmic_typec_port { struct pmic_typec_port_irq_data *irq_data; struct regulator *vdd_vbus; + bool vbus_enabled; + struct mutex vbus_lock; /* VBUS state serialization */ int cc; bool debouncing_cc; @@ -131,7 +272,7 @@ done: return IRQ_HANDLED; } -int qcom_pmic_typec_port_get_vbus(struct pmic_typec_port *pmic_typec_port) +static int qcom_pmic_typec_port_vbus_detect(struct pmic_typec_port *pmic_typec_port) { struct device *dev = pmic_typec_port->dev; unsigned int misc; @@ -148,7 +289,7 @@ int qcom_pmic_typec_port_get_vbus(struct pmic_typec_port *pmic_typec_port) return !!(misc & TYPEC_VBUS_DETECT); } -int qcom_pmic_typec_port_set_vbus(struct pmic_typec_port *pmic_typec_port, bool on) +static int qcom_pmic_typec_port_vbus_toggle(struct pmic_typec_port *pmic_typec_port, bool on) { u32 sm_stat; u32 val; @@ -179,10 +320,49 @@ int qcom_pmic_typec_port_set_vbus(struct pmic_typec_port *pmic_typec_port, bool return 0; } -int qcom_pmic_typec_port_get_cc(struct pmic_typec_port *pmic_typec_port, - enum typec_cc_status *cc1, - enum typec_cc_status *cc2) +static int qcom_pmic_typec_port_get_vbus(struct tcpc_dev *tcpc) +{ + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port; + int ret; + + mutex_lock(&pmic_typec_port->vbus_lock); + ret = pmic_typec_port->vbus_enabled || qcom_pmic_typec_port_vbus_detect(pmic_typec_port); + mutex_unlock(&pmic_typec_port->vbus_lock); + + return ret; +} + +static int qcom_pmic_typec_port_set_vbus(struct tcpc_dev *tcpc, bool on, bool sink) +{ + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port; + int ret = 0; + + mutex_lock(&pmic_typec_port->vbus_lock); + if (pmic_typec_port->vbus_enabled == on) + goto done; + + ret = qcom_pmic_typec_port_vbus_toggle(pmic_typec_port, on); + if (ret) + goto done; + + pmic_typec_port->vbus_enabled = on; + tcpm_vbus_change(tcpm->tcpm_port); + +done: + dev_dbg(tcpm->dev, "set_vbus set: %d result %d\n", on, ret); + mutex_unlock(&pmic_typec_port->vbus_lock); + + return ret; +} + +static int qcom_pmic_typec_port_get_cc(struct tcpc_dev *tcpc, + enum typec_cc_status *cc1, + enum typec_cc_status *cc2) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port; struct device *dev = pmic_typec_port->dev; unsigned int misc, val; bool attached; @@ -275,9 +455,11 @@ static void qcom_pmic_set_cc_debounce(struct pmic_typec_port *pmic_typec_port) msecs_to_jiffies(2)); } -int qcom_pmic_typec_port_set_cc(struct pmic_typec_port *pmic_typec_port, - enum typec_cc_status cc) +static int qcom_pmic_typec_port_set_cc(struct tcpc_dev *tcpc, + enum typec_cc_status cc) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port; struct device *dev = pmic_typec_port->dev; unsigned int mode, currsrc; unsigned int misc; @@ -341,8 +523,17 @@ done: return ret; } -int qcom_pmic_typec_port_set_vconn(struct pmic_typec_port *pmic_typec_port, bool on) +static int qcom_pmic_typec_port_set_polarity(struct tcpc_dev *tcpc, + enum typec_cc_polarity pol) +{ + /* Polarity is set separately by phy-qcom-qmp.c */ + return 0; +} + +static int qcom_pmic_typec_port_set_vconn(struct tcpc_dev *tcpc, bool on) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port; struct device *dev = pmic_typec_port->dev; unsigned int orientation, misc, mask, value; unsigned long flags; @@ -377,10 +568,12 @@ done: return ret; } -int qcom_pmic_typec_port_start_toggling(struct pmic_typec_port *pmic_typec_port, - enum typec_port_type port_type, - enum typec_cc_status cc) +static int qcom_pmic_typec_port_start_toggling(struct tcpc_dev *tcpc, + enum typec_port_type port_type, + enum typec_cc_status cc) { + struct pmic_typec *tcpm = tcpc_to_tcpm(tcpc); + struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port; struct device *dev = pmic_typec_port->dev; unsigned int misc; u8 mode = 0; @@ -441,9 +634,10 @@ done: (TYPEC_STATE_MACHINE_CHANGE_INT_EN | TYPEC_VBUS_ERROR_INT_EN | \ TYPEC_DEBOUNCE_DONE_INT_EN) -int qcom_pmic_typec_port_start(struct pmic_typec_port *pmic_typec_port, - struct tcpm_port *tcpm_port) +static int qcom_pmic_typec_port_start(struct pmic_typec *tcpm, + struct tcpm_port *tcpm_port) { + struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port; int i; int mask; int ret; @@ -491,29 +685,30 @@ done: return ret; } -void qcom_pmic_typec_port_stop(struct pmic_typec_port *pmic_typec_port) +static void qcom_pmic_typec_port_stop(struct pmic_typec *tcpm) { + struct pmic_typec_port *pmic_typec_port = tcpm->pmic_typec_port; int i; for (i = 0; i < pmic_typec_port->nr_irqs; i++) disable_irq(pmic_typec_port->irq_data[i].irq); } -struct pmic_typec_port *qcom_pmic_typec_port_alloc(struct device *dev) -{ - return devm_kzalloc(dev, sizeof(struct pmic_typec_port), GFP_KERNEL); -} - int qcom_pmic_typec_port_probe(struct platform_device *pdev, - struct pmic_typec_port *pmic_typec_port, - struct pmic_typec_port_resources *res, + struct pmic_typec *tcpm, + const struct pmic_typec_port_resources *res, struct regmap *regmap, u32 base) { struct device *dev = &pdev->dev; struct pmic_typec_port_irq_data *irq_data; + struct pmic_typec_port *pmic_typec_port; int i, ret, irq; + pmic_typec_port = devm_kzalloc(dev, sizeof(*pmic_typec_port), GFP_KERNEL); + if (!pmic_typec_port) + return -ENOMEM; + if (!res->nr_irqs || res->nr_irqs > PMIC_TYPEC_MAX_IRQS) return -EINVAL; @@ -522,6 +717,8 @@ int qcom_pmic_typec_port_probe(struct platform_device *pdev, if (!irq_data) return -ENOMEM; + mutex_init(&pmic_typec_port->vbus_lock); + pmic_typec_port->vdd_vbus = devm_regulator_get(dev, "vdd-vbus"); if (IS_ERR(pmic_typec_port->vdd_vbus)) return PTR_ERR(pmic_typec_port->vdd_vbus); @@ -556,5 +753,56 @@ int qcom_pmic_typec_port_probe(struct platform_device *pdev, return ret; } + tcpm->pmic_typec_port = pmic_typec_port; + + tcpm->tcpc.get_vbus = qcom_pmic_typec_port_get_vbus; + tcpm->tcpc.set_vbus = qcom_pmic_typec_port_set_vbus; + tcpm->tcpc.set_cc = qcom_pmic_typec_port_set_cc; + tcpm->tcpc.get_cc = qcom_pmic_typec_port_get_cc; + tcpm->tcpc.set_polarity = qcom_pmic_typec_port_set_polarity; + tcpm->tcpc.set_vconn = qcom_pmic_typec_port_set_vconn; + tcpm->tcpc.start_toggling = qcom_pmic_typec_port_start_toggling; + + tcpm->port_start = qcom_pmic_typec_port_start; + tcpm->port_stop = qcom_pmic_typec_port_stop; + return 0; } + +const struct pmic_typec_port_resources pm8150b_port_res = { + .irq_params = { + { + .irq_name = "vpd-detect", + .virq = PMIC_TYPEC_VPD_IRQ, + }, + + { + .irq_name = "cc-state-change", + .virq = PMIC_TYPEC_CC_STATE_IRQ, + }, + { + .irq_name = "vconn-oc", + .virq = PMIC_TYPEC_VCONN_OC_IRQ, + }, + + { + .irq_name = "vbus-change", + .virq = PMIC_TYPEC_VBUS_IRQ, + }, + + { + .irq_name = "attach-detach", + .virq = PMIC_TYPEC_ATTACH_DETACH_IRQ, + }, + { + .irq_name = "legacy-cable-detect", + .virq = PMIC_TYPEC_LEGACY_CABLE_IRQ, + }, + + { + .irq_name = "try-snk-src-detect", + .virq = PMIC_TYPEC_TRY_SNK_SRC_IRQ, + }, + }, + .nr_irqs = 7, +}; diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.h b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.h index d4d358c680b6bf..2ca83a46cf3b5d 100644 --- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.h +++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec_port.h @@ -3,149 +3,12 @@ * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. * Copyright (c) 2023, Linaro Ltd. All rights reserved. */ -#ifndef __QCOM_PMIC_TYPEC_H__ -#define __QCOM_PMIC_TYPEC_H__ +#ifndef __QCOM_PMIC_TYPEC_PORT_H__ +#define __QCOM_PMIC_TYPEC_PORT_H__ #include <linux/platform_device.h> #include <linux/usb/tcpm.h> -#define TYPEC_SNK_STATUS_REG 0x06 -#define DETECTED_SNK_TYPE_MASK GENMASK(6, 0) -#define SNK_DAM_MASK GENMASK(6, 4) -#define SNK_DAM_500MA BIT(6) -#define SNK_DAM_1500MA BIT(5) -#define SNK_DAM_3000MA BIT(4) -#define SNK_RP_STD BIT(3) -#define SNK_RP_1P5 BIT(2) -#define SNK_RP_3P0 BIT(1) -#define SNK_RP_SHORT BIT(0) - -#define TYPEC_SRC_STATUS_REG 0x08 -#define DETECTED_SRC_TYPE_MASK GENMASK(4, 0) -#define SRC_HIGH_BATT BIT(5) -#define SRC_DEBUG_ACCESS BIT(4) -#define SRC_RD_OPEN BIT(3) -#define SRC_RD_RA_VCONN BIT(2) -#define SRC_RA_OPEN BIT(1) -#define AUDIO_ACCESS_RA_RA BIT(0) - -#define TYPEC_STATE_MACHINE_STATUS_REG 0x09 -#define TYPEC_ATTACH_DETACH_STATE BIT(5) - -#define TYPEC_SM_STATUS_REG 0x0A -#define TYPEC_SM_VBUS_VSAFE5V BIT(5) -#define TYPEC_SM_VBUS_VSAFE0V BIT(6) -#define TYPEC_SM_USBIN_LT_LV BIT(7) - -#define TYPEC_MISC_STATUS_REG 0x0B -#define TYPEC_WATER_DETECTION_STATUS BIT(7) -#define SNK_SRC_MODE BIT(6) -#define TYPEC_VBUS_DETECT BIT(5) -#define TYPEC_VBUS_ERROR_STATUS BIT(4) -#define TYPEC_DEBOUNCE_DONE BIT(3) -#define CC_ORIENTATION BIT(1) -#define CC_ATTACHED BIT(0) - -#define LEGACY_CABLE_STATUS_REG 0x0D -#define TYPEC_LEGACY_CABLE_STATUS BIT(1) -#define TYPEC_NONCOMP_LEGACY_CABLE_STATUS BIT(0) - -#define TYPEC_U_USB_STATUS_REG 0x0F -#define U_USB_GROUND_NOVBUS BIT(6) -#define U_USB_GROUND BIT(4) -#define U_USB_FMB1 BIT(3) -#define U_USB_FLOAT1 BIT(2) -#define U_USB_FMB2 BIT(1) -#define U_USB_FLOAT2 BIT(0) - -#define TYPEC_MODE_CFG_REG 0x44 -#define TYPEC_TRY_MODE_MASK GENMASK(4, 3) -#define EN_TRY_SNK BIT(4) -#define EN_TRY_SRC BIT(3) -#define TYPEC_POWER_ROLE_CMD_MASK GENMASK(2, 0) -#define EN_SRC_ONLY BIT(2) -#define EN_SNK_ONLY BIT(1) -#define TYPEC_DISABLE_CMD BIT(0) - -#define TYPEC_VCONN_CONTROL_REG 0x46 -#define VCONN_EN_ORIENTATION BIT(2) -#define VCONN_EN_VALUE BIT(1) -#define VCONN_EN_SRC BIT(0) - -#define TYPEC_CCOUT_CONTROL_REG 0x48 -#define TYPEC_CCOUT_BUFFER_EN BIT(2) -#define TYPEC_CCOUT_VALUE BIT(1) -#define TYPEC_CCOUT_SRC BIT(0) - -#define DEBUG_ACCESS_SRC_CFG_REG 0x4C -#define EN_UNORIENTED_DEBUG_ACCESS_SRC BIT(0) - -#define TYPE_C_CRUDE_SENSOR_CFG_REG 0x4e -#define EN_SRC_CRUDE_SENSOR BIT(1) -#define EN_SNK_CRUDE_SENSOR BIT(0) - -#define TYPEC_EXIT_STATE_CFG_REG 0x50 -#define BYPASS_VSAFE0V_DURING_ROLE_SWAP BIT(3) -#define SEL_SRC_UPPER_REF BIT(2) -#define USE_TPD_FOR_EXITING_ATTACHSRC BIT(1) -#define EXIT_SNK_BASED_ON_CC BIT(0) - -#define TYPEC_CURRSRC_CFG_REG 0x52 -#define TYPEC_SRC_RP_SEL_330UA BIT(1) -#define TYPEC_SRC_RP_SEL_180UA BIT(0) -#define TYPEC_SRC_RP_SEL_80UA 0 -#define TYPEC_SRC_RP_SEL_MASK GENMASK(1, 0) - -#define TYPEC_INTERRUPT_EN_CFG_1_REG 0x5E -#define TYPEC_LEGACY_CABLE_INT_EN BIT(7) -#define TYPEC_NONCOMPLIANT_LEGACY_CABLE_INT_EN BIT(6) -#define TYPEC_TRYSOURCE_DETECT_INT_EN BIT(5) -#define TYPEC_TRYSINK_DETECT_INT_EN BIT(4) -#define TYPEC_CCOUT_DETACH_INT_EN BIT(3) -#define TYPEC_CCOUT_ATTACH_INT_EN BIT(2) -#define TYPEC_VBUS_DEASSERT_INT_EN BIT(1) -#define TYPEC_VBUS_ASSERT_INT_EN BIT(0) - -#define TYPEC_INTERRUPT_EN_CFG_2_REG 0x60 -#define TYPEC_SRC_BATT_HPWR_INT_EN BIT(6) -#define MICRO_USB_STATE_CHANGE_INT_EN BIT(5) -#define TYPEC_STATE_MACHINE_CHANGE_INT_EN BIT(4) -#define TYPEC_DEBUG_ACCESS_DETECT_INT_EN BIT(3) -#define TYPEC_WATER_DETECTION_INT_EN BIT(2) -#define TYPEC_VBUS_ERROR_INT_EN BIT(1) -#define TYPEC_DEBOUNCE_DONE_INT_EN BIT(0) - -#define TYPEC_DEBOUNCE_OPTION_REG 0x62 -#define REDUCE_TCCDEBOUNCE_TO_2MS BIT(2) - -#define TYPE_C_SBU_CFG_REG 0x6A -#define SEL_SBU1_ISRC_VAL 0x04 -#define SEL_SBU2_ISRC_VAL 0x01 - -#define TYPEC_U_USB_CFG_REG 0x70 -#define EN_MICRO_USB_FACTORY_MODE BIT(1) -#define EN_MICRO_USB_MODE BIT(0) - -#define TYPEC_PMI632_U_USB_WATER_PROTECTION_CFG_REG 0x72 - -#define TYPEC_U_USB_WATER_PROTECTION_CFG_REG 0x73 -#define EN_MICRO_USB_WATER_PROTECTION BIT(4) -#define MICRO_USB_DETECTION_ON_TIME_CFG_MASK GENMASK(3, 2) -#define MICRO_USB_DETECTION_PERIOD_CFG_MASK GENMASK(1, 0) - -#define TYPEC_PMI632_MICRO_USB_MODE_REG 0x73 -#define MICRO_USB_MODE_ONLY BIT(0) - -/* Interrupt numbers */ -#define PMIC_TYPEC_OR_RID_IRQ 0x0 -#define PMIC_TYPEC_VPD_IRQ 0x1 -#define PMIC_TYPEC_CC_STATE_IRQ 0x2 -#define PMIC_TYPEC_VCONN_OC_IRQ 0x3 -#define PMIC_TYPEC_VBUS_IRQ 0x4 -#define PMIC_TYPEC_ATTACH_DETACH_IRQ 0x5 -#define PMIC_TYPEC_LEGACY_CABLE_IRQ 0x6 -#define PMIC_TYPEC_TRY_SNK_SRC_IRQ 0x7 - /* Resources */ #define PMIC_TYPEC_MAX_IRQS 0x08 @@ -156,40 +19,17 @@ struct pmic_typec_port_irq_params { struct pmic_typec_port_resources { unsigned int nr_irqs; - struct pmic_typec_port_irq_params irq_params[PMIC_TYPEC_MAX_IRQS]; + const struct pmic_typec_port_irq_params irq_params[PMIC_TYPEC_MAX_IRQS]; }; /* API */ -struct pmic_typec; -struct pmic_typec_port *qcom_pmic_typec_port_alloc(struct device *dev); +extern const struct pmic_typec_port_resources pm8150b_port_res; int qcom_pmic_typec_port_probe(struct platform_device *pdev, - struct pmic_typec_port *pmic_typec_port, - struct pmic_typec_port_resources *res, + struct pmic_typec *tcpm, + const struct pmic_typec_port_resources *res, struct regmap *regmap, u32 base); -int qcom_pmic_typec_port_start(struct pmic_typec_port *pmic_typec_port, - struct tcpm_port *tcpm_port); - -void qcom_pmic_typec_port_stop(struct pmic_typec_port *pmic_typec_port); - -int qcom_pmic_typec_port_get_cc(struct pmic_typec_port *pmic_typec_port, - enum typec_cc_status *cc1, - enum typec_cc_status *cc2); - -int qcom_pmic_typec_port_set_cc(struct pmic_typec_port *pmic_typec_port, - enum typec_cc_status cc); - -int qcom_pmic_typec_port_get_vbus(struct pmic_typec_port *pmic_typec_port); - -int qcom_pmic_typec_port_set_vconn(struct pmic_typec_port *pmic_typec_port, bool on); - -int qcom_pmic_typec_port_start_toggling(struct pmic_typec_port *pmic_typec_port, - enum typec_port_type port_type, - enum typec_cc_status cc); - -int qcom_pmic_typec_port_set_vbus(struct pmic_typec_port *pmic_typec_port, bool on); - #endif /* __QCOM_PMIC_TYPE_C_PORT_H__ */ diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c index 0ee3e6e29bb178..c962014bba4e85 100644 --- a/drivers/usb/typec/tcpm/tcpci.c +++ b/drivers/usb/typec/tcpm/tcpci.c @@ -445,8 +445,11 @@ static int tcpci_set_pd_rx(struct tcpc_dev *tcpc, bool enable) unsigned int reg = 0; int ret; - if (enable) + if (enable) { reg = TCPC_RX_DETECT_SOP | TCPC_RX_DETECT_HARD_RESET; + if (tcpci->data->cable_comm_capable) + reg |= TCPC_RX_DETECT_SOP1; + } ret = regmap_write(tcpci->regmap, TCPC_RX_DETECT, reg); if (ret < 0) return ret; @@ -584,6 +587,23 @@ static int tcpci_pd_transmit(struct tcpc_dev *tcpc, enum tcpm_transmit_type type return 0; } +static bool tcpci_cable_comm_capable(struct tcpc_dev *tcpc) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + + return tcpci->data->cable_comm_capable; +} + +static bool tcpci_attempt_vconn_swap_discovery(struct tcpc_dev *tcpc) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + + if (tcpci->data->attempt_vconn_swap_discovery) + return tcpci->data->attempt_vconn_swap_discovery(tcpci, tcpci->data); + + return false; +} + static int tcpci_init(struct tcpc_dev *tcpc) { struct tcpci *tcpci = tcpc_to_tcpci(tcpc); @@ -712,7 +732,7 @@ irqreturn_t tcpci_irq(struct tcpci *tcpci) /* Read complete, clear RX status alert bit */ tcpci_write16(tcpci, TCPC_ALERT, TCPC_ALERT_RX_STATUS); - tcpm_pd_receive(tcpci->port, &msg); + tcpm_pd_receive(tcpci->port, &msg, TCPC_TX_SOP); } if (tcpci->data->vbus_vsafe0v && (status & TCPC_ALERT_EXTENDED_STATUS)) { @@ -793,6 +813,8 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data) tcpci->tcpc.enable_frs = tcpci_enable_frs; tcpci->tcpc.frs_sourcing_vbus = tcpci_frs_sourcing_vbus; tcpci->tcpc.set_partner_usb_comm_capable = tcpci_set_partner_usb_comm_capable; + tcpci->tcpc.cable_comm_capable = tcpci_cable_comm_capable; + tcpci->tcpc.attempt_vconn_swap_discovery = tcpci_attempt_vconn_swap_discovery; if (tcpci->data->check_contaminant) tcpci->tcpc.check_contaminant = tcpci_check_contaminant; @@ -889,6 +911,7 @@ MODULE_DEVICE_TABLE(i2c, tcpci_id); #ifdef CONFIG_OF static const struct of_device_id tcpci_of_match[] = { { .compatible = "nxp,ptn5110", }, + { .compatible = "tcpci", }, {}, }; MODULE_DEVICE_TABLE(of, tcpci_of_match); diff --git a/drivers/usb/typec/tcpm/tcpci_maxim.h b/drivers/usb/typec/tcpm/tcpci_maxim.h index 2c1c4d161b0dcb..78ff3b73ee7e3c 100644 --- a/drivers/usb/typec/tcpm/tcpci_maxim.h +++ b/drivers/usb/typec/tcpm/tcpci_maxim.h @@ -62,6 +62,7 @@ struct max_tcpci_chip { struct i2c_client *client; struct tcpm_port *port; enum contamiant_state contaminant_state; + bool veto_vconn_swap; }; static inline int max_tcpci_read16(struct max_tcpci_chip *chip, unsigned int reg, u16 *val) diff --git a/drivers/usb/typec/tcpm/tcpci_maxim_core.c b/drivers/usb/typec/tcpm/tcpci_maxim_core.c index 7fb966fd639b32..eec3bcec119c1a 100644 --- a/drivers/usb/typec/tcpm/tcpci_maxim_core.c +++ b/drivers/usb/typec/tcpm/tcpci_maxim_core.c @@ -128,6 +128,7 @@ static void process_rx(struct max_tcpci_chip *chip, u16 status) u8 count, frame_type, rx_buf[TCPC_RECEIVE_BUFFER_LEN]; int ret, payload_index; u8 *rx_buf_ptr; + enum tcpm_transmit_type rx_type; /* * READABLE_BYTE_COUNT: Indicates the number of bytes in the RX_BUF_BYTE_x registers @@ -143,10 +144,23 @@ static void process_rx(struct max_tcpci_chip *chip, u16 status) count = rx_buf[TCPC_RECEIVE_BUFFER_COUNT_OFFSET]; frame_type = rx_buf[TCPC_RECEIVE_BUFFER_FRAME_TYPE_OFFSET]; - if (count == 0 || frame_type != TCPC_RX_BUF_FRAME_TYPE_SOP) { + switch (frame_type) { + case TCPC_RX_BUF_FRAME_TYPE_SOP1: + rx_type = TCPC_TX_SOP_PRIME; + break; + case TCPC_RX_BUF_FRAME_TYPE_SOP: + rx_type = TCPC_TX_SOP; + break; + default: + rx_type = TCPC_TX_SOP; + break; + } + + if (count == 0 || (frame_type != TCPC_RX_BUF_FRAME_TYPE_SOP && + frame_type != TCPC_RX_BUF_FRAME_TYPE_SOP1)) { max_tcpci_write16(chip, TCPC_ALERT, TCPC_ALERT_RX_STATUS); dev_err(chip->dev, "%s\n", count == 0 ? "error: count is 0" : - "error frame_type is not SOP"); + "error frame_type is not SOP/SOP'"); return; } @@ -183,7 +197,7 @@ static void process_rx(struct max_tcpci_chip *chip, u16 status) if (ret < 0) return; - tcpm_pd_receive(chip->port, &msg); + tcpm_pd_receive(chip->port, &msg, rx_type); } static int max_tcpci_set_vbus(struct tcpci *tcpci, struct tcpci_data *tdata, bool source, bool sink) @@ -309,8 +323,10 @@ static irqreturn_t _max_tcpci_irq(struct max_tcpci_chip *chip, u16 status) if (ret < 0) return ret; - if (reg_status & TCPC_FAULT_STATUS_VCONN_OC) + if (reg_status & TCPC_FAULT_STATUS_VCONN_OC) { + chip->veto_vconn_swap = true; tcpm_port_error_recovery(chip->port); + } } if (status & TCPC_ALERT_EXTND) { @@ -444,6 +460,18 @@ static void max_tcpci_check_contaminant(struct tcpci *tcpci, struct tcpci_data * tcpm_port_clean(chip->port); } +static bool max_tcpci_attempt_vconn_swap_discovery(struct tcpci *tcpci, struct tcpci_data *tdata) +{ + struct max_tcpci_chip *chip = tdata_to_max_tcpci(tdata); + + if (chip->veto_vconn_swap) { + chip->veto_vconn_swap = false; + return false; + } + + return true; +} + static int max_tcpci_probe(struct i2c_client *client) { int ret; @@ -478,6 +506,8 @@ static int max_tcpci_probe(struct i2c_client *client) chip->data.vbus_vsafe0v = true; chip->data.set_partner_usb_comm_capable = max_tcpci_set_partner_usb_comm_capable; chip->data.check_contaminant = max_tcpci_check_contaminant; + chip->data.cable_comm_capable = true; + chip->data.attempt_vconn_swap_discovery = max_tcpci_attempt_vconn_swap_discovery; max_tcpci_init_regs(chip); chip->tcpci = tcpci_register_port(chip->dev, &chip->data); diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 0965972310275e..ae2b6c94482d5f 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -108,6 +108,7 @@ S(VCONN_SWAP_WAIT_FOR_VCONN), \ S(VCONN_SWAP_TURN_ON_VCONN), \ S(VCONN_SWAP_TURN_OFF_VCONN), \ + S(VCONN_SWAP_SEND_SOFT_RESET), \ \ S(FR_SWAP_SEND), \ S(FR_SWAP_SEND_TIMEOUT), \ @@ -145,7 +146,9 @@ S(PORT_RESET_WAIT_OFF), \ \ S(AMS_START), \ - S(CHUNK_NOT_SUPP) + S(CHUNK_NOT_SUPP), \ + \ + S(SRC_VDM_IDENTITY_REQUEST) #define FOREACH_AMS(S) \ S(NONE_AMS), \ @@ -327,6 +330,12 @@ struct tcpm_port { struct typec_partner_desc partner_desc; struct typec_partner *partner; + struct usb_pd_identity cable_ident; + struct typec_cable_desc cable_desc; + struct typec_cable *cable; + struct typec_plug_desc plug_prime_desc; + struct typec_plug *plug_prime; + enum typec_cc_status cc_req; enum typec_cc_status src_rp; /* work only if pd_supported == false */ @@ -468,7 +477,9 @@ struct tcpm_port { /* Alternate mode data */ struct pd_mode_data mode_data; + struct pd_mode_data mode_data_prime; struct typec_altmode *partner_altmode[ALTMODE_DISCOVERY_MAX]; + struct typec_altmode *plug_prime_altmode[ALTMODE_DISCOVERY_MAX]; struct typec_altmode *port_altmode[ALTMODE_DISCOVERY_MAX]; /* Deadline in jiffies to exit src_try_wait state */ @@ -505,6 +516,41 @@ struct tcpm_port { * transitions. */ bool potential_contaminant; + + /* SOP* Related Fields */ + /* + * Flag to determine if SOP' Discover Identity is available. The flag + * is set if Discover Identity on SOP' does not immediately follow + * Discover Identity on SOP. + */ + bool send_discover_prime; + /* + * tx_sop_type determines which SOP* a message is being sent on. + * For messages that are queued and not sent immediately such as in + * tcpm_queue_message or messages that send after state changes, + * the tx_sop_type is set accordingly. + */ + enum tcpm_transmit_type tx_sop_type; + /* + * Prior to discovering the port partner's Specification Revision, the + * Vconn source and cable plug will use the lower of their two revisions. + * + * When the port partner's Specification Revision is discovered, the following + * rules are put in place. + * 1. If the cable revision (1) is lower than the revision negotiated + * between the port and partner (2), the port and partner will communicate + * on revision (2), but the port and cable will communicate on revision (1). + * 2. If the cable revision (1) is higher than the revision negotiated + * between the port and partner (2), the port and partner will communicate + * on revision (2), and the port and cable will communicate on revision (2) + * as well. + */ + unsigned int negotiated_rev_prime; + /* + * Each SOP* type must maintain their own tx and rx message IDs + */ + unsigned int message_id_prime; + unsigned int rx_msgid_prime; #ifdef CONFIG_DEBUG_FS struct dentry *dentry; struct mutex logbuffer_lock; /* log buffer access lock */ @@ -518,6 +564,7 @@ struct pd_rx_event { struct kthread_work work; struct tcpm_port *port; struct pd_message msg; + enum tcpm_transmit_type rx_sop_type; }; static const char * const pd_rev[] = { @@ -893,19 +940,30 @@ static void tcpm_ams_finish(struct tcpm_port *port) } static int tcpm_pd_transmit(struct tcpm_port *port, - enum tcpm_transmit_type type, + enum tcpm_transmit_type tx_sop_type, const struct pd_message *msg) { unsigned long timeout; int ret; + unsigned int negotiated_rev; + + switch (tx_sop_type) { + case TCPC_TX_SOP_PRIME: + negotiated_rev = port->negotiated_rev_prime; + break; + case TCPC_TX_SOP: + default: + negotiated_rev = port->negotiated_rev; + break; + } if (msg) tcpm_log(port, "PD TX, header: %#x", le16_to_cpu(msg->header)); else - tcpm_log(port, "PD TX, type: %#x", type); + tcpm_log(port, "PD TX, type: %#x", tx_sop_type); reinit_completion(&port->tx_complete); - ret = port->tcpc->pd_transmit(port->tcpc, type, msg, port->negotiated_rev); + ret = port->tcpc->pd_transmit(port->tcpc, tx_sop_type, msg, negotiated_rev); if (ret < 0) return ret; @@ -918,7 +976,17 @@ static int tcpm_pd_transmit(struct tcpm_port *port, switch (port->tx_status) { case TCPC_TX_SUCCESS: - port->message_id = (port->message_id + 1) & PD_HEADER_ID_MASK; + switch (tx_sop_type) { + case TCPC_TX_SOP_PRIME: + port->message_id_prime = (port->message_id_prime + 1) & + PD_HEADER_ID_MASK; + break; + case TCPC_TX_SOP: + default: + port->message_id = (port->message_id + 1) & + PD_HEADER_ID_MASK; + break; + } /* * USB PD rev 2.0, 8.3.2.2.1: * USB PD rev 3.0, 8.3.2.1.3: @@ -1099,6 +1167,12 @@ static int tcpm_set_roles(struct tcpm_port *port, bool attached, if (ret < 0) return ret; + if (port->tcpc->set_orientation) { + ret = port->tcpc->set_orientation(port->tcpc, orientation); + if (ret < 0) + return ret; + } + port->pwr_role = role; port->data_role = data; typec_set_data_role(port->typec_port, data); @@ -1456,7 +1530,7 @@ static int tcpm_ams_start(struct tcpm_port *port, enum tcpm_ams ams) * VDM/VDO handling functions */ static void tcpm_queue_vdm(struct tcpm_port *port, const u32 header, - const u32 *data, int cnt) + const u32 *data, int cnt, enum tcpm_transmit_type tx_sop_type) { u32 vdo_hdr = port->vdo_data[0]; @@ -1464,7 +1538,10 @@ static void tcpm_queue_vdm(struct tcpm_port *port, const u32 header, /* If is sending discover_identity, handle received message first */ if (PD_VDO_SVDM(vdo_hdr) && PD_VDO_CMD(vdo_hdr) == CMD_DISCOVER_IDENT) { - port->send_discover = true; + if (tx_sop_type == TCPC_TX_SOP_PRIME) + port->send_discover_prime = true; + else + port->send_discover = true; mod_send_discover_delayed_work(port, SEND_DISCOVER_RETRY_MS); } else { /* Make sure we are not still processing a previous VDM packet */ @@ -1479,14 +1556,16 @@ static void tcpm_queue_vdm(struct tcpm_port *port, const u32 header, port->vdm_state = VDM_STATE_READY; port->vdm_sm_running = true; + port->tx_sop_type = tx_sop_type; + mod_vdm_delayed_work(port, 0); } static void tcpm_queue_vdm_unlocked(struct tcpm_port *port, const u32 header, - const u32 *data, int cnt) + const u32 *data, int cnt, enum tcpm_transmit_type tx_sop_type) { mutex_lock(&port->lock); - tcpm_queue_vdm(port, header, data, cnt); + tcpm_queue_vdm(port, header, data, cnt, TCPC_TX_SOP); mutex_unlock(&port->lock); } @@ -1508,9 +1587,68 @@ static void svdm_consume_identity(struct tcpm_port *port, const u32 *p, int cnt) PD_PRODUCT_PID(product), product & 0xffff); } -static bool svdm_consume_svids(struct tcpm_port *port, const u32 *p, int cnt) +static void svdm_consume_identity_sop_prime(struct tcpm_port *port, const u32 *p, int cnt) { - struct pd_mode_data *pmdata = &port->mode_data; + u32 idh = p[VDO_INDEX_IDH]; + u32 product = p[VDO_INDEX_PRODUCT]; + int svdm_version; + + /* + * Attempt to consume identity only if cable currently is not set + */ + if (!IS_ERR_OR_NULL(port->cable)) + goto register_plug; + + /* Reset cable identity */ + memset(&port->cable_ident, 0, sizeof(port->cable_ident)); + + /* Fill out id header, cert, product, cable VDO 1 */ + port->cable_ident.id_header = idh; + port->cable_ident.cert_stat = p[VDO_INDEX_CSTAT]; + port->cable_ident.product = product; + port->cable_ident.vdo[0] = p[VDO_INDEX_CABLE_1]; + + /* Fill out cable desc, infer svdm_version from pd revision */ + port->cable_desc.type = (enum typec_plug_type) (VDO_TYPEC_CABLE_TYPE(p[VDO_INDEX_CABLE_1]) + + USB_PLUG_TYPE_A); + port->cable_desc.active = PD_IDH_PTYPE(idh) == IDH_PTYPE_ACABLE ? 1 : 0; + /* Log PD Revision and additional cable VDO from negotiated revision */ + switch (port->negotiated_rev_prime) { + case PD_REV30: + port->cable_desc.pd_revision = 0x0300; + if (port->cable_desc.active) + port->cable_ident.vdo[1] = p[VDO_INDEX_CABLE_2]; + break; + case PD_REV20: + port->cable_desc.pd_revision = 0x0200; + break; + default: + port->cable_desc.pd_revision = 0x0200; + break; + } + port->cable_desc.identity = &port->cable_ident; + /* Register Cable, set identity and svdm_version */ + port->cable = typec_register_cable(port->typec_port, &port->cable_desc); + if (IS_ERR_OR_NULL(port->cable)) + return; + typec_cable_set_identity(port->cable); + /* Get SVDM version */ + svdm_version = PD_VDO_SVDM_VER(p[VDO_INDEX_HDR]); + typec_cable_set_svdm_version(port->cable, svdm_version); + +register_plug: + if (IS_ERR_OR_NULL(port->plug_prime)) { + port->plug_prime_desc.index = TYPEC_PLUG_SOP_P; + port->plug_prime = typec_register_plug(port->cable, + &port->plug_prime_desc); + } +} + +static bool svdm_consume_svids(struct tcpm_port *port, const u32 *p, int cnt, + enum tcpm_transmit_type rx_sop_type) +{ + struct pd_mode_data *pmdata = rx_sop_type == TCPC_TX_SOP_PRIME ? + &port->mode_data_prime : &port->mode_data; int i; for (i = 1; i < cnt; i++) { @@ -1556,14 +1694,29 @@ abort: return false; } -static void svdm_consume_modes(struct tcpm_port *port, const u32 *p, int cnt) +static void svdm_consume_modes(struct tcpm_port *port, const u32 *p, int cnt, + enum tcpm_transmit_type rx_sop_type) { struct pd_mode_data *pmdata = &port->mode_data; struct typec_altmode_desc *paltmode; int i; - if (pmdata->altmodes >= ARRAY_SIZE(port->partner_altmode)) { - /* Already logged in svdm_consume_svids() */ + switch (rx_sop_type) { + case TCPC_TX_SOP_PRIME: + pmdata = &port->mode_data_prime; + if (pmdata->altmodes >= ARRAY_SIZE(port->plug_prime_altmode)) { + /* Already logged in svdm_consume_svids() */ + return; + } + break; + case TCPC_TX_SOP: + pmdata = &port->mode_data; + if (pmdata->altmodes >= ARRAY_SIZE(port->partner_altmode)) { + /* Already logged in svdm_consume_svids() */ + return; + } + break; + default: return; } @@ -1601,20 +1754,129 @@ static void tcpm_register_partner_altmodes(struct tcpm_port *port) } } +static void tcpm_register_plug_altmodes(struct tcpm_port *port) +{ + struct pd_mode_data *modep = &port->mode_data_prime; + struct typec_altmode *altmode; + int i; + + typec_plug_set_num_altmodes(port->plug_prime, modep->altmodes); + + for (i = 0; i < modep->altmodes; i++) { + altmode = typec_plug_register_altmode(port->plug_prime, + &modep->altmode_desc[i]); + if (IS_ERR(altmode)) { + tcpm_log(port, "Failed to register plug SVID 0x%04x", + modep->altmode_desc[i].svid); + altmode = NULL; + } + port->plug_prime_altmode[i] = altmode; + } +} + #define supports_modal(port) PD_IDH_MODAL_SUPP((port)->partner_ident.id_header) +#define supports_modal_cable(port) PD_IDH_MODAL_SUPP((port)->cable_ident.id_header) +#define supports_host(port) PD_IDH_HOST_SUPP((port->partner_ident.id_header)) + +/* + * Helper to determine whether the port is capable of SOP' communication at the + * current point in time. + */ +static bool tcpm_can_communicate_sop_prime(struct tcpm_port *port) +{ + /* Check to see if tcpc supports SOP' communication */ + if (!port->tcpc->cable_comm_capable || !port->tcpc->cable_comm_capable(port->tcpc)) + return false; + /* + * Power Delivery 2.0 Section 6.3.11 + * Before communicating with a Cable Plug a Port Should ensure that it + * is the Vconn Source and that the Cable Plugs are powered by + * performing a Vconn swap if necessary. Since it cannot be guaranteed + * that the present Vconn Source is supplying Vconn, the only means to + * ensure that the Cable Plugs are powered is for a Port wishing to + * communicate with a Cable Plug is to become the Vconn Source. + * + * Power Delivery 3.0 Section 6.3.11 + * Before communicating with a Cable Plug a Port Shall ensure that it + * is the Vconn source. + */ + if (port->vconn_role != TYPEC_SOURCE) + return false; + /* + * Power Delivery 2.0 Section 2.4.4 + * When no Contract or an Implicit Contract is in place the Source can + * communicate with a Cable Plug using SOP' packets in order to discover + * its characteristics. + * + * Power Delivery 3.0 Section 2.4.4 + * When no Contract or an Implicit Contract is in place only the Source + * port that is supplying Vconn is allowed to send packets to a Cable + * Plug and is allowed to respond to packets from the Cable Plug. + */ + if (!port->explicit_contract) + return port->pwr_role == TYPEC_SOURCE; + if (port->negotiated_rev == PD_REV30) + return true; + /* + * Power Delivery 2.0 Section 2.4.4 + * + * When an Explicit Contract is in place the DFP (either the Source or + * the Sink) can communicate with the Cable Plug(s) using SOP’/SOP” + * Packets (see Figure 2-3). + */ + if (port->negotiated_rev == PD_REV20) + return port->data_role == TYPEC_HOST; + return false; +} + +static bool tcpm_attempt_vconn_swap_discovery(struct tcpm_port *port) +{ + if (!port->tcpc->attempt_vconn_swap_discovery) + return false; + + /* Port is already source, no need to perform swap */ + if (port->vconn_role == TYPEC_SOURCE) + return false; + + /* + * Partner needs to support Alternate Modes with modal support. If + * partner is also capable of being a USB Host, it could be a device + * that supports Alternate Modes as the DFP. + */ + if (!supports_modal(port) || supports_host(port)) + return false; + + if ((port->negotiated_rev == PD_REV20 && port->data_role == TYPEC_HOST) || + port->negotiated_rev == PD_REV30) + return port->tcpc->attempt_vconn_swap_discovery(port->tcpc); + + return false; +} + + +static bool tcpm_cable_vdm_supported(struct tcpm_port *port) +{ + return !IS_ERR_OR_NULL(port->cable) && + typec_cable_is_active(port->cable) && + supports_modal_cable(port) && + tcpm_can_communicate_sop_prime(port); +} static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, const u32 *p, int cnt, u32 *response, - enum adev_actions *adev_action) + enum adev_actions *adev_action, + enum tcpm_transmit_type rx_sop_type, + enum tcpm_transmit_type *response_tx_sop_type) { struct typec_port *typec = port->typec_port; - struct typec_altmode *pdev; - struct pd_mode_data *modep; + struct typec_altmode *pdev, *pdev_prime; + struct pd_mode_data *modep, *modep_prime; int svdm_version; int rlen = 0; int cmd_type; int cmd; int i; + int ret; cmd_type = PD_VDO_CMDT(p[0]); cmd = PD_VDO_CMD(p[0]); @@ -1622,17 +1884,54 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, tcpm_log(port, "Rx VDM cmd 0x%x type %d cmd %d len %d", p[0], cmd_type, cmd, cnt); - modep = &port->mode_data; - - pdev = typec_match_altmode(port->partner_altmode, ALTMODE_DISCOVERY_MAX, - PD_VDO_VID(p[0]), PD_VDO_OPOS(p[0])); - - svdm_version = typec_get_negotiated_svdm_version(typec); - if (svdm_version < 0) - return 0; + switch (rx_sop_type) { + case TCPC_TX_SOP_PRIME: + modep_prime = &port->mode_data_prime; + pdev_prime = typec_match_altmode(port->plug_prime_altmode, + ALTMODE_DISCOVERY_MAX, + PD_VDO_VID(p[0]), + PD_VDO_OPOS(p[0])); + svdm_version = typec_get_cable_svdm_version(typec); + /* + * Update SVDM version if cable was discovered before port partner. + */ + if (!IS_ERR_OR_NULL(port->cable) && + PD_VDO_SVDM_VER(p[0]) < svdm_version) + typec_cable_set_svdm_version(port->cable, svdm_version); + break; + case TCPC_TX_SOP: + modep = &port->mode_data; + pdev = typec_match_altmode(port->partner_altmode, + ALTMODE_DISCOVERY_MAX, + PD_VDO_VID(p[0]), + PD_VDO_OPOS(p[0])); + svdm_version = typec_get_negotiated_svdm_version(typec); + if (svdm_version < 0) + return 0; + break; + default: + modep = &port->mode_data; + pdev = typec_match_altmode(port->partner_altmode, + ALTMODE_DISCOVERY_MAX, + PD_VDO_VID(p[0]), + PD_VDO_OPOS(p[0])); + svdm_version = typec_get_negotiated_svdm_version(typec); + if (svdm_version < 0) + return 0; + break; + } switch (cmd_type) { case CMDT_INIT: + /* + * Only the port or port partner is allowed to initialize SVDM + * commands over SOP'. In case the port partner initializes a + * sequence when it is not allowed to send SOP' messages, drop + * the message should the TCPM port try to process it. + */ + if (rx_sop_type == TCPC_TX_SOP_PRIME) + return 0; + switch (cmd) { case CMD_DISCOVER_IDENT: if (PD_VDO_VID(p[0]) != USB_SID_PD) @@ -1699,55 +1998,186 @@ static int tcpm_pd_svdm(struct tcpm_port *port, struct typec_altmode *adev, (VDO_SVDM_VERS(typec_get_negotiated_svdm_version(typec))); break; case CMDT_RSP_ACK: - /* silently drop message if we are not connected */ - if (IS_ERR_OR_NULL(port->partner)) + /* + * Silently drop message if we are not connected, but can process + * if SOP' Discover Identity prior to explicit contract. + */ + if (IS_ERR_OR_NULL(port->partner) && + !(rx_sop_type == TCPC_TX_SOP_PRIME && cmd == CMD_DISCOVER_IDENT)) break; tcpm_ams_finish(port); switch (cmd) { + /* + * SVDM Command Flow for SOP and SOP': + * SOP Discover Identity + * SOP' Discover Identity + * SOP Discover SVIDs + * Discover Modes + * (Active Cables) + * SOP' Discover SVIDs + * Discover Modes + * + * Perform Discover SOP' if the port can communicate with cable + * plug. + */ case CMD_DISCOVER_IDENT: - if (PD_VDO_SVDM_VER(p[0]) < svdm_version) - typec_partner_set_svdm_version(port->partner, - PD_VDO_SVDM_VER(p[0])); - /* 6.4.4.3.1 */ - svdm_consume_identity(port, p, cnt); - response[0] = VDO(USB_SID_PD, 1, typec_get_negotiated_svdm_version(typec), - CMD_DISCOVER_SVID); - rlen = 1; + switch (rx_sop_type) { + case TCPC_TX_SOP: + if (PD_VDO_SVDM_VER(p[0]) < svdm_version) { + typec_partner_set_svdm_version(port->partner, + PD_VDO_SVDM_VER(p[0])); + /* If cable is discovered before partner, downgrade svdm */ + if (!IS_ERR_OR_NULL(port->cable) && + (typec_get_cable_svdm_version(port->typec_port) > + svdm_version)) + typec_cable_set_svdm_version(port->cable, + svdm_version); + } + /* 6.4.4.3.1 */ + svdm_consume_identity(port, p, cnt); + /* Attempt Vconn swap, delay SOP' discovery if necessary */ + if (tcpm_attempt_vconn_swap_discovery(port)) { + port->send_discover_prime = true; + port->upcoming_state = VCONN_SWAP_SEND; + ret = tcpm_ams_start(port, VCONN_SWAP); + if (!ret) + return 0; + /* Cannot perform Vconn swap */ + port->upcoming_state = INVALID_STATE; + port->send_discover_prime = false; + } + + /* + * Attempt Discover Identity on SOP' if the + * cable was not discovered previously, and use + * the SVDM version of the partner to probe. + */ + if (IS_ERR_OR_NULL(port->cable) && + tcpm_can_communicate_sop_prime(port)) { + *response_tx_sop_type = TCPC_TX_SOP_PRIME; + port->send_discover_prime = true; + response[0] = VDO(USB_SID_PD, 1, + typec_get_negotiated_svdm_version(typec), + CMD_DISCOVER_IDENT); + rlen = 1; + } else { + *response_tx_sop_type = TCPC_TX_SOP; + response[0] = VDO(USB_SID_PD, 1, + typec_get_negotiated_svdm_version(typec), + CMD_DISCOVER_SVID); + rlen = 1; + } + break; + case TCPC_TX_SOP_PRIME: + /* + * svdm_consume_identity_sop_prime will determine + * the svdm_version for the cable moving forward. + */ + svdm_consume_identity_sop_prime(port, p, cnt); + + /* + * If received in SRC_VDM_IDENTITY_REQUEST, continue + * to SRC_SEND_CAPABILITIES + */ + if (port->state == SRC_VDM_IDENTITY_REQUEST) { + tcpm_set_state(port, SRC_SEND_CAPABILITIES, 0); + return 0; + } + + *response_tx_sop_type = TCPC_TX_SOP; + response[0] = VDO(USB_SID_PD, 1, + typec_get_negotiated_svdm_version(typec), + CMD_DISCOVER_SVID); + rlen = 1; + break; + default: + return 0; + } break; case CMD_DISCOVER_SVID: + *response_tx_sop_type = rx_sop_type; /* 6.4.4.3.2 */ - if (svdm_consume_svids(port, p, cnt)) { + if (svdm_consume_svids(port, p, cnt, rx_sop_type)) { response[0] = VDO(USB_SID_PD, 1, svdm_version, CMD_DISCOVER_SVID); rlen = 1; - } else if (modep->nsvids && supports_modal(port)) { - response[0] = VDO(modep->svids[0], 1, svdm_version, - CMD_DISCOVER_MODES); - rlen = 1; + } else { + if (rx_sop_type == TCPC_TX_SOP) { + if (modep->nsvids && supports_modal(port)) { + response[0] = VDO(modep->svids[0], 1, svdm_version, + CMD_DISCOVER_MODES); + rlen = 1; + } + } else if (rx_sop_type == TCPC_TX_SOP_PRIME) { + if (modep_prime->nsvids) { + response[0] = VDO(modep_prime->svids[0], 1, + svdm_version, CMD_DISCOVER_MODES); + rlen = 1; + } + } } break; case CMD_DISCOVER_MODES: - /* 6.4.4.3.3 */ - svdm_consume_modes(port, p, cnt); - modep->svid_index++; - if (modep->svid_index < modep->nsvids) { - u16 svid = modep->svids[modep->svid_index]; - response[0] = VDO(svid, 1, svdm_version, CMD_DISCOVER_MODES); - rlen = 1; - } else { - tcpm_register_partner_altmodes(port); + if (rx_sop_type == TCPC_TX_SOP) { + /* 6.4.4.3.3 */ + svdm_consume_modes(port, p, cnt, rx_sop_type); + modep->svid_index++; + if (modep->svid_index < modep->nsvids) { + u16 svid = modep->svids[modep->svid_index]; + *response_tx_sop_type = TCPC_TX_SOP; + response[0] = VDO(svid, 1, svdm_version, + CMD_DISCOVER_MODES); + rlen = 1; + } else if (tcpm_cable_vdm_supported(port)) { + *response_tx_sop_type = TCPC_TX_SOP_PRIME; + response[0] = VDO(USB_SID_PD, 1, + typec_get_cable_svdm_version(typec), + CMD_DISCOVER_SVID); + rlen = 1; + } else { + tcpm_register_partner_altmodes(port); + } + } else if (rx_sop_type == TCPC_TX_SOP_PRIME) { + /* 6.4.4.3.3 */ + svdm_consume_modes(port, p, cnt, rx_sop_type); + modep_prime->svid_index++; + if (modep_prime->svid_index < modep_prime->nsvids) { + u16 svid = modep_prime->svids[modep_prime->svid_index]; + *response_tx_sop_type = TCPC_TX_SOP_PRIME; + response[0] = VDO(svid, 1, + typec_get_cable_svdm_version(typec), + CMD_DISCOVER_MODES); + rlen = 1; + } else { + tcpm_register_plug_altmodes(port); + tcpm_register_partner_altmodes(port); + } } break; case CMD_ENTER_MODE: - if (adev && pdev) - *adev_action = ADEV_QUEUE_VDM_SEND_EXIT_MODE_ON_FAIL; + *response_tx_sop_type = rx_sop_type; + if (rx_sop_type == TCPC_TX_SOP) { + if (adev && pdev) { + typec_altmode_update_active(pdev, true); + *adev_action = ADEV_QUEUE_VDM_SEND_EXIT_MODE_ON_FAIL; + } + } else if (rx_sop_type == TCPC_TX_SOP_PRIME) { + if (adev && pdev_prime) { + typec_altmode_update_active(pdev_prime, true); + *adev_action = ADEV_QUEUE_VDM_SEND_EXIT_MODE_ON_FAIL; + } + } return 0; case CMD_EXIT_MODE: - if (adev && pdev) { - /* Back to USB Operation */ - *adev_action = ADEV_NOTIFY_USB_AND_QUEUE_VDM; - return 0; + *response_tx_sop_type = rx_sop_type; + if (rx_sop_type == TCPC_TX_SOP) { + if (adev && pdev) { + typec_altmode_update_active(pdev, false); + /* Back to USB Operation */ + *adev_action = ADEV_NOTIFY_USB_AND_QUEUE_VDM; + return 0; + } } break; case VDO_CMD_VENDOR(0) ... VDO_CMD_VENDOR(15): @@ -1800,13 +2230,15 @@ static void tcpm_pd_handle_msg(struct tcpm_port *port, enum tcpm_ams ams); static void tcpm_handle_vdm_request(struct tcpm_port *port, - const __le32 *payload, int cnt) + const __le32 *payload, int cnt, + enum tcpm_transmit_type rx_sop_type) { enum adev_actions adev_action = ADEV_NONE; struct typec_altmode *adev; u32 p[PD_MAX_PAYLOAD]; u32 response[8] = { }; int i, rlen = 0; + enum tcpm_transmit_type response_tx_sop_type = TCPC_TX_SOP; for (i = 0; i < cnt; i++) p[i] = le32_to_cpu(payload[i]); @@ -1841,7 +2273,8 @@ static void tcpm_handle_vdm_request(struct tcpm_port *port, * - We will send NAK and the flag will be cleared in the state machine. */ port->vdm_sm_running = true; - rlen = tcpm_pd_svdm(port, adev, p, cnt, response, &adev_action); + rlen = tcpm_pd_svdm(port, adev, p, cnt, response, &adev_action, + rx_sop_type, &response_tx_sop_type); } else { if (port->negotiated_rev >= PD_REV30) tcpm_pd_handle_msg(port, PD_MSG_CTRL_NOT_SUPP, NONE_AMS); @@ -1877,19 +2310,37 @@ static void tcpm_handle_vdm_request(struct tcpm_port *port, typec_altmode_vdm(adev, p[0], &p[1], cnt); break; case ADEV_QUEUE_VDM: - typec_altmode_vdm(adev, p[0], &p[1], cnt); + if (response_tx_sop_type == TCPC_TX_SOP_PRIME) + typec_cable_altmode_vdm(adev, TYPEC_PLUG_SOP_P, p[0], &p[1], cnt); + else + typec_altmode_vdm(adev, p[0], &p[1], cnt); break; case ADEV_QUEUE_VDM_SEND_EXIT_MODE_ON_FAIL: - if (typec_altmode_vdm(adev, p[0], &p[1], cnt)) { - int svdm_version = typec_get_negotiated_svdm_version( - port->typec_port); - if (svdm_version < 0) - break; - - response[0] = VDO(adev->svid, 1, svdm_version, - CMD_EXIT_MODE); - response[0] |= VDO_OPOS(adev->mode); - rlen = 1; + if (response_tx_sop_type == TCPC_TX_SOP_PRIME) { + if (typec_cable_altmode_vdm(adev, TYPEC_PLUG_SOP_P, + p[0], &p[1], cnt)) { + int svdm_version = typec_get_cable_svdm_version( + port->typec_port); + if (svdm_version < 0) + break; + + response[0] = VDO(adev->svid, 1, svdm_version, + CMD_EXIT_MODE); + response[0] |= VDO_OPOS(adev->mode); + rlen = 1; + } + } else { + if (typec_altmode_vdm(adev, p[0], &p[1], cnt)) { + int svdm_version = typec_get_negotiated_svdm_version( + port->typec_port); + if (svdm_version < 0) + break; + + response[0] = VDO(adev->svid, 1, svdm_version, + CMD_EXIT_MODE); + response[0] |= VDO_OPOS(adev->mode); + rlen = 1; + } } break; case ADEV_ATTENTION: @@ -1909,19 +2360,38 @@ static void tcpm_handle_vdm_request(struct tcpm_port *port, mutex_lock(&port->lock); if (rlen > 0) - tcpm_queue_vdm(port, response[0], &response[1], rlen - 1); + tcpm_queue_vdm(port, response[0], &response[1], rlen - 1, response_tx_sop_type); else port->vdm_sm_running = false; } static void tcpm_send_vdm(struct tcpm_port *port, u32 vid, int cmd, - const u32 *data, int count) + const u32 *data, int count, enum tcpm_transmit_type tx_sop_type) { - int svdm_version = typec_get_negotiated_svdm_version(port->typec_port); + int svdm_version; u32 header; - if (svdm_version < 0) - return; + switch (tx_sop_type) { + case TCPC_TX_SOP_PRIME: + /* + * If the port partner is discovered, then the port partner's + * SVDM Version will be returned + */ + svdm_version = typec_get_cable_svdm_version(port->typec_port); + if (svdm_version < 0) + svdm_version = SVDM_VER_MAX; + break; + case TCPC_TX_SOP: + svdm_version = typec_get_negotiated_svdm_version(port->typec_port); + if (svdm_version < 0) + return; + break; + default: + svdm_version = typec_get_negotiated_svdm_version(port->typec_port); + if (svdm_version < 0) + return; + break; + } if (WARN_ON(count > VDO_MAX_SIZE - 1)) count = VDO_MAX_SIZE - 1; @@ -1930,7 +2400,7 @@ static void tcpm_send_vdm(struct tcpm_port *port, u32 vid, int cmd, header = VDO(vid, ((vid & USB_SID_PD) == USB_SID_PD) ? 1 : (PD_VDO_CMD(cmd) <= CMD_ATTENTION), svdm_version, cmd); - tcpm_queue_vdm(port, header, data, count); + tcpm_queue_vdm(port, header, data, count, tx_sop_type); } static unsigned int vdm_ready_timeout(u32 vdm_hdr) @@ -1964,6 +2434,7 @@ static void vdm_run_state_machine(struct tcpm_port *port) struct pd_message msg; int i, res = 0; u32 vdo_hdr = port->vdo_data[0]; + u32 response[8] = { }; switch (port->vdm_state) { case VDM_STATE_READY: @@ -1977,7 +2448,8 @@ static void vdm_run_state_machine(struct tcpm_port *port) * if there's traffic or we're not in PDO ready state don't send * a VDM. */ - if (port->state != SRC_READY && port->state != SNK_READY) { + if (port->state != SRC_READY && port->state != SNK_READY && + port->state != SRC_VDM_IDENTITY_REQUEST) { port->vdm_sm_running = false; break; } @@ -1988,7 +2460,17 @@ static void vdm_run_state_machine(struct tcpm_port *port) case CMD_DISCOVER_IDENT: res = tcpm_ams_start(port, DISCOVER_IDENTITY); if (res == 0) { - port->send_discover = false; + switch (port->tx_sop_type) { + case TCPC_TX_SOP_PRIME: + port->send_discover_prime = false; + break; + case TCPC_TX_SOP: + port->send_discover = false; + break; + default: + port->send_discover = false; + break; + } } else if (res == -EAGAIN) { port->vdo_data[0] = 0; mod_send_discover_delayed_work(port, @@ -2044,12 +2526,21 @@ static void vdm_run_state_machine(struct tcpm_port *port) break; case VDM_STATE_ERR_SEND: /* + * When sending Discover Identity to SOP' before establishing an + * explicit contract, do not retry. Instead, weave sending + * Source_Capabilities over SOP and Discover Identity over SOP'. + */ + if (port->state == SRC_VDM_IDENTITY_REQUEST) { + tcpm_ams_finish(port); + port->vdm_state = VDM_STATE_DONE; + tcpm_set_state(port, SRC_SEND_CAPABILITIES, 0); + /* * A partner which does not support USB PD will not reply, * so this is not a fatal error. At the same time, some * devices may not return GoodCRC under some circumstances, * so we need to retry. */ - if (port->vdm_retries < 3) { + } else if (port->vdm_retries < 3) { tcpm_log(port, "VDM Tx error, retry"); port->vdm_retries++; port->vdm_state = VDM_STATE_READY; @@ -2057,19 +2548,59 @@ static void vdm_run_state_machine(struct tcpm_port *port) tcpm_ams_finish(port); } else { tcpm_ams_finish(port); + if (port->tx_sop_type == TCPC_TX_SOP) + break; + /* Handle SOP' Transmission Errors */ + switch (PD_VDO_CMD(vdo_hdr)) { + /* + * If Discover Identity fails on SOP', then resume + * discovery process on SOP only. + */ + case CMD_DISCOVER_IDENT: + port->vdo_data[0] = 0; + response[0] = VDO(USB_SID_PD, 1, + typec_get_negotiated_svdm_version( + port->typec_port), + CMD_DISCOVER_SVID); + tcpm_queue_vdm(port, response[0], &response[1], + 0, TCPC_TX_SOP); + break; + /* + * If Discover SVIDs or Discover Modes fail, then + * proceed with Alt Mode discovery process on SOP. + */ + case CMD_DISCOVER_SVID: + tcpm_register_partner_altmodes(port); + break; + case CMD_DISCOVER_MODES: + tcpm_register_partner_altmodes(port); + break; + default: + break; + } } break; case VDM_STATE_SEND_MESSAGE: /* Prepare and send VDM */ memset(&msg, 0, sizeof(msg)); - msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF, - port->pwr_role, - port->data_role, - port->negotiated_rev, - port->message_id, port->vdo_count); + if (port->tx_sop_type == TCPC_TX_SOP_PRIME) { + msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF, + 0, /* Cable Plug Indicator for DFP/UFP */ + 0, /* Reserved */ + port->negotiated_rev_prime, + port->message_id_prime, + port->vdo_count); + } else { + msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF, + port->pwr_role, + port->data_role, + port->negotiated_rev, + port->message_id, + port->vdo_count); + } for (i = 0; i < port->vdo_count; i++) msg.payload[i] = cpu_to_le32(port->vdo_data[i]); - res = tcpm_pd_transmit(port, TCPC_TX_SOP, &msg); + res = tcpm_pd_transmit(port, port->tx_sop_type, &msg); if (res < 0) { port->vdm_state = VDM_STATE_ERR_SEND; } else { @@ -2244,7 +2775,7 @@ static int tcpm_altmode_enter(struct typec_altmode *altmode, u32 *vdo) header = VDO(altmode->svid, vdo ? 2 : 1, svdm_version, CMD_ENTER_MODE); header |= VDO_OPOS(altmode->mode); - tcpm_queue_vdm_unlocked(port, header, vdo, vdo ? 1 : 0); + tcpm_queue_vdm_unlocked(port, header, vdo, vdo ? 1 : 0, TCPC_TX_SOP); return 0; } @@ -2261,7 +2792,7 @@ static int tcpm_altmode_exit(struct typec_altmode *altmode) header = VDO(altmode->svid, 1, svdm_version, CMD_EXIT_MODE); header |= VDO_OPOS(altmode->mode); - tcpm_queue_vdm_unlocked(port, header, NULL, 0); + tcpm_queue_vdm_unlocked(port, header, NULL, 0, TCPC_TX_SOP); return 0; } @@ -2270,7 +2801,7 @@ static int tcpm_altmode_vdm(struct typec_altmode *altmode, { struct tcpm_port *port = typec_altmode_get_drvdata(altmode); - tcpm_queue_vdm_unlocked(port, header, data, count - 1); + tcpm_queue_vdm_unlocked(port, header, data, count - 1, TCPC_TX_SOP); return 0; } @@ -2281,6 +2812,58 @@ static const struct typec_altmode_ops tcpm_altmode_ops = { .vdm = tcpm_altmode_vdm, }; + +static int tcpm_cable_altmode_enter(struct typec_altmode *altmode, enum typec_plug_index sop, + u32 *vdo) +{ + struct tcpm_port *port = typec_altmode_get_drvdata(altmode); + int svdm_version; + u32 header; + + svdm_version = typec_get_cable_svdm_version(port->typec_port); + if (svdm_version < 0) + return svdm_version; + + header = VDO(altmode->svid, vdo ? 2 : 1, svdm_version, CMD_ENTER_MODE); + header |= VDO_OPOS(altmode->mode); + + tcpm_queue_vdm_unlocked(port, header, vdo, vdo ? 1 : 0, TCPC_TX_SOP_PRIME); + return 0; +} + +static int tcpm_cable_altmode_exit(struct typec_altmode *altmode, enum typec_plug_index sop) +{ + struct tcpm_port *port = typec_altmode_get_drvdata(altmode); + int svdm_version; + u32 header; + + svdm_version = typec_get_cable_svdm_version(port->typec_port); + if (svdm_version < 0) + return svdm_version; + + header = VDO(altmode->svid, 1, svdm_version, CMD_EXIT_MODE); + header |= VDO_OPOS(altmode->mode); + + tcpm_queue_vdm_unlocked(port, header, NULL, 0, TCPC_TX_SOP_PRIME); + return 0; +} + +static int tcpm_cable_altmode_vdm(struct typec_altmode *altmode, enum typec_plug_index sop, + u32 header, const u32 *data, int count) +{ + struct tcpm_port *port = typec_altmode_get_drvdata(altmode); + + tcpm_queue_vdm_unlocked(port, header, data, count - 1, TCPC_TX_SOP_PRIME); + + return 0; +} + +static const struct typec_cable_ops tcpm_cable_ops = { + .enter = tcpm_cable_altmode_enter, + .exit = tcpm_cable_altmode_exit, + .vdm = tcpm_cable_altmode_vdm, +}; + /* * PD (data, control) command handling functions */ @@ -2293,7 +2876,8 @@ static inline enum tcpm_state ready_state(struct tcpm_port *port) } static int tcpm_pd_send_control(struct tcpm_port *port, - enum pd_ctrl_msg_type type); + enum pd_ctrl_msg_type type, + enum tcpm_transmit_type tx_sop_type); static void tcpm_handle_alert(struct tcpm_port *port, const __le32 *payload, int cnt) @@ -2455,7 +3039,8 @@ static int tcpm_register_sink_caps(struct tcpm_port *port) } static void tcpm_pd_data_request(struct tcpm_port *port, - const struct pd_message *msg) + const struct pd_message *msg, + enum tcpm_transmit_type rx_sop_type) { enum pd_data_msg_type type = pd_header_type_le(msg->header); unsigned int cnt = pd_header_cnt_le(msg->header); @@ -2496,8 +3081,11 @@ static void tcpm_pd_data_request(struct tcpm_port *port, break; } - if (rev < PD_MAX_REV) + if (rev < PD_MAX_REV) { port->negotiated_rev = rev; + if (port->negotiated_rev_prime > port->negotiated_rev) + port->negotiated_rev_prime = port->negotiated_rev; + } if (port->pwr_role == TYPEC_SOURCE) { if (port->ams == GET_SOURCE_CAPABILITIES) @@ -2548,8 +3136,11 @@ static void tcpm_pd_data_request(struct tcpm_port *port, break; } - if (rev < PD_MAX_REV) + if (rev < PD_MAX_REV) { port->negotiated_rev = rev; + if (port->negotiated_rev_prime > port->negotiated_rev) + port->negotiated_rev_prime = port->negotiated_rev; + } if (port->pwr_role != TYPEC_SOURCE || cnt != 1) { tcpm_pd_handle_msg(port, @@ -2605,7 +3196,7 @@ static void tcpm_pd_data_request(struct tcpm_port *port, NONE_AMS); break; case PD_DATA_VENDOR_DEF: - tcpm_handle_vdm_request(port, msg->payload, cnt); + tcpm_handle_vdm_request(port, msg->payload, cnt, rx_sop_type); break; case PD_DATA_BIST: port->bist_request = le32_to_cpu(msg->payload[0]); @@ -2647,10 +3238,12 @@ static void tcpm_pps_complete(struct tcpm_port *port, int result) } static void tcpm_pd_ctrl_request(struct tcpm_port *port, - const struct pd_message *msg) + const struct pd_message *msg, + enum tcpm_transmit_type rx_sop_type) { enum pd_ctrl_msg_type type = pd_header_type_le(msg->header); enum tcpm_state next_state; + unsigned int rev = pd_header_rev_le(msg->header); /* * Stop VDM state machine if interrupted by other Messages while NOT_SUPP is allowed in @@ -2815,6 +3408,16 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port, case SOFT_RESET_SEND: if (port->ams == SOFT_RESET_AMS) tcpm_ams_finish(port); + /* + * SOP' Soft Reset is done after Vconn Swap, + * which returns to ready state + */ + if (rx_sop_type == TCPC_TX_SOP_PRIME) { + if (rev < port->negotiated_rev_prime) + port->negotiated_rev_prime = rev; + tcpm_set_state(port, ready_state(port), 0); + break; + } if (port->pwr_role == TYPEC_SOURCE) { port->upcoming_state = SRC_SEND_CAPABILITIES; tcpm_ams_start(port, POWER_NEGOTIATION); @@ -2981,6 +3584,7 @@ static void tcpm_pd_rx_handler(struct kthread_work *work) const struct pd_message *msg = &event->msg; unsigned int cnt = pd_header_cnt_le(msg->header); struct tcpm_port *port = event->port; + enum tcpm_transmit_type rx_sop_type = event->rx_sop_type; mutex_lock(&port->lock); @@ -2992,6 +3596,14 @@ static void tcpm_pd_rx_handler(struct kthread_work *work) unsigned int msgid = pd_header_msgid_le(msg->header); /* + * Drop SOP' messages if cannot receive via + * tcpm_can_communicate_sop_prime + */ + if (rx_sop_type == TCPC_TX_SOP_PRIME && + !tcpm_can_communicate_sop_prime(port)) + goto done; + + /* * USB PD standard, 6.6.1.2: * "... if MessageID value in a received Message is the * same as the stored value, the receiver shall return a @@ -3000,16 +3612,26 @@ static void tcpm_pd_rx_handler(struct kthread_work *work) * Message). Note: this shall not apply to the Soft_Reset * Message which always has a MessageID value of zero." */ - if (msgid == port->rx_msgid && type != PD_CTRL_SOFT_RESET) - goto done; - port->rx_msgid = msgid; + switch (rx_sop_type) { + case TCPC_TX_SOP_PRIME: + if (msgid == port->rx_msgid_prime) + goto done; + port->rx_msgid_prime = msgid; + break; + case TCPC_TX_SOP: + default: + if (msgid == port->rx_msgid && type != PD_CTRL_SOFT_RESET) + goto done; + port->rx_msgid = msgid; + break; + } /* * If both ends believe to be DFP/host, we have a data role * mismatch. */ if (!!(le16_to_cpu(msg->header) & PD_HEADER_DATA_ROLE) == - (port->data_role == TYPEC_HOST)) { + (port->data_role == TYPEC_HOST) && rx_sop_type == TCPC_TX_SOP) { tcpm_log(port, "Data role mismatch, initiating error recovery"); tcpm_set_state(port, ERROR_RECOVERY, 0); @@ -3017,9 +3639,9 @@ static void tcpm_pd_rx_handler(struct kthread_work *work) if (le16_to_cpu(msg->header) & PD_HEADER_EXT_HDR) tcpm_pd_ext_msg_request(port, msg); else if (cnt) - tcpm_pd_data_request(port, msg); + tcpm_pd_data_request(port, msg, rx_sop_type); else - tcpm_pd_ctrl_request(port, msg); + tcpm_pd_ctrl_request(port, msg, rx_sop_type); } } @@ -3028,7 +3650,8 @@ done: kfree(event); } -void tcpm_pd_receive(struct tcpm_port *port, const struct pd_message *msg) +void tcpm_pd_receive(struct tcpm_port *port, const struct pd_message *msg, + enum tcpm_transmit_type rx_sop_type) { struct pd_rx_event *event; @@ -3038,23 +3661,47 @@ void tcpm_pd_receive(struct tcpm_port *port, const struct pd_message *msg) kthread_init_work(&event->work, tcpm_pd_rx_handler); event->port = port; + event->rx_sop_type = rx_sop_type; memcpy(&event->msg, msg, sizeof(*msg)); kthread_queue_work(port->wq, &event->work); } EXPORT_SYMBOL_GPL(tcpm_pd_receive); static int tcpm_pd_send_control(struct tcpm_port *port, - enum pd_ctrl_msg_type type) + enum pd_ctrl_msg_type type, + enum tcpm_transmit_type tx_sop_type) { struct pd_message msg; memset(&msg, 0, sizeof(msg)); - msg.header = PD_HEADER_LE(type, port->pwr_role, - port->data_role, - port->negotiated_rev, - port->message_id, 0); + switch (tx_sop_type) { + case TCPC_TX_SOP_PRIME: + msg.header = PD_HEADER_LE(type, + 0, /* Cable Plug Indicator for DFP/UFP */ + 0, /* Reserved */ + port->negotiated_rev, + port->message_id_prime, + 0); + break; + case TCPC_TX_SOP: + msg.header = PD_HEADER_LE(type, + port->pwr_role, + port->data_role, + port->negotiated_rev, + port->message_id, + 0); + break; + default: + msg.header = PD_HEADER_LE(type, + port->pwr_role, + port->data_role, + port->negotiated_rev, + port->message_id, + 0); + break; + } - return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg); + return tcpm_pd_transmit(port, tx_sop_type, &msg); } /* @@ -3073,13 +3720,13 @@ static bool tcpm_send_queued_message(struct tcpm_port *port) switch (queued_message) { case PD_MSG_CTRL_WAIT: - tcpm_pd_send_control(port, PD_CTRL_WAIT); + tcpm_pd_send_control(port, PD_CTRL_WAIT, TCPC_TX_SOP); break; case PD_MSG_CTRL_REJECT: - tcpm_pd_send_control(port, PD_CTRL_REJECT); + tcpm_pd_send_control(port, PD_CTRL_REJECT, TCPC_TX_SOP); break; case PD_MSG_CTRL_NOT_SUPP: - tcpm_pd_send_control(port, PD_CTRL_NOT_SUPP); + tcpm_pd_send_control(port, PD_CTRL_NOT_SUPP, TCPC_TX_SOP); break; case PD_MSG_DATA_SINK_CAP: ret = tcpm_pd_send_sink_caps(port); @@ -3649,6 +4296,7 @@ static int tcpm_src_attach(struct tcpm_port *port) port->attached = true; port->send_discover = true; + port->send_discover_prime = false; return 0; @@ -3665,6 +4313,15 @@ out_disable_mux: static void tcpm_typec_disconnect(struct tcpm_port *port) { + /* + * Unregister plug/cable outside of port->connected because cable can + * be discovered before SRC_READY/SNK_READY states where port->connected + * is set. + */ + typec_unregister_plug(port->plug_prime); + typec_unregister_cable(port->cable); + port->plug_prime = NULL; + port->cable = NULL; if (port->connected) { typec_partner_set_usb_power_delivery(port->partner, NULL); typec_unregister_partner(port->partner); @@ -3676,14 +4333,20 @@ static void tcpm_typec_disconnect(struct tcpm_port *port) static void tcpm_unregister_altmodes(struct tcpm_port *port) { struct pd_mode_data *modep = &port->mode_data; + struct pd_mode_data *modep_prime = &port->mode_data_prime; int i; for (i = 0; i < modep->altmodes; i++) { typec_unregister_altmode(port->partner_altmode[i]); port->partner_altmode[i] = NULL; } + for (i = 0; i < modep_prime->altmodes; i++) { + typec_unregister_altmode(port->plug_prime_altmode[i]); + port->plug_prime_altmode[i] = NULL; + } memset(modep, 0, sizeof(*modep)); + memset(modep_prime, 0, sizeof(*modep_prime)); } static void tcpm_set_partner_usb_comm_capable(struct tcpm_port *port, bool capable) @@ -3712,6 +4375,7 @@ static void tcpm_reset_port(struct tcpm_port *port) * we can check tcpm_pd_rx_handler() if we had seen it before. */ port->rx_msgid = -1; + port->rx_msgid_prime = -1; port->tcpc->set_pd_rx(port->tcpc, false); tcpm_init_vbus(port); /* also disables charging */ @@ -3783,6 +4447,7 @@ static int tcpm_snk_attach(struct tcpm_port *port) port->attached = true; port->send_discover = true; + port->send_discover_prime = false; return 0; } @@ -4023,8 +4688,11 @@ static void run_state_machine(struct tcpm_port *port) port->pwr_opmode = TYPEC_PWR_MODE_USB; port->caps_count = 0; port->negotiated_rev = PD_MAX_REV; + port->negotiated_rev_prime = PD_MAX_REV; port->message_id = 0; + port->message_id_prime = 0; port->rx_msgid = -1; + port->rx_msgid_prime = -1; port->explicit_contract = false; /* SNK -> SRC POWER/FAST_ROLE_SWAP finished */ if (port->ams == POWER_ROLE_SWAP || @@ -4045,8 +4713,12 @@ static void run_state_machine(struct tcpm_port *port) } ret = tcpm_pd_send_source_caps(port); if (ret < 0) { - tcpm_set_state(port, SRC_SEND_CAPABILITIES, - PD_T_SEND_SOURCE_CAP); + if (tcpm_can_communicate_sop_prime(port) && + IS_ERR_OR_NULL(port->cable)) + tcpm_set_state(port, SRC_VDM_IDENTITY_REQUEST, 0); + else + tcpm_set_state(port, SRC_SEND_CAPABILITIES, + PD_T_SEND_SOURCE_CAP); } else { /* * Per standard, we should clear the reset counter here. @@ -4087,7 +4759,7 @@ static void run_state_machine(struct tcpm_port *port) case SRC_NEGOTIATE_CAPABILITIES: ret = tcpm_pd_check_request(port); if (ret < 0) { - tcpm_pd_send_control(port, PD_CTRL_REJECT); + tcpm_pd_send_control(port, PD_CTRL_REJECT, TCPC_TX_SOP); if (!port->explicit_contract) { tcpm_set_state(port, SRC_WAIT_NEW_CAPABILITIES, 0); @@ -4095,7 +4767,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_state(port, SRC_READY, 0); } } else { - tcpm_pd_send_control(port, PD_CTRL_ACCEPT); + tcpm_pd_send_control(port, PD_CTRL_ACCEPT, TCPC_TX_SOP); tcpm_set_partner_usb_comm_capable(port, !!(port->sink_request & RDO_USB_COMM)); tcpm_set_state(port, SRC_TRANSITION_SUPPLY, @@ -4104,7 +4776,7 @@ static void run_state_machine(struct tcpm_port *port) break; case SRC_TRANSITION_SUPPLY: /* XXX: regulator_set_voltage(vbus, ...) */ - tcpm_pd_send_control(port, PD_CTRL_PS_RDY); + tcpm_pd_send_control(port, PD_CTRL_PS_RDY, TCPC_TX_SOP); port->explicit_contract = true; typec_set_pwr_opmode(port->typec_port, TYPEC_PWR_MODE_PD); port->pwr_opmode = TYPEC_PWR_MODE_PD; @@ -4141,14 +4813,23 @@ static void run_state_machine(struct tcpm_port *port) * 6.4.4.3.1 Discover Identity * "The Discover Identity Command Shall only be sent to SOP when there is an * Explicit Contract." - * For now, this driver only supports SOP for DISCOVER_IDENTITY, thus using - * port->explicit_contract to decide whether to send the command. + * + * Discover Identity on SOP' should be discovered prior to the + * ready state, but if done after a Vconn Swap following Discover + * Identity on SOP then the discovery process can be run here + * as well. */ if (port->explicit_contract) { - tcpm_set_initial_svdm_version(port); + if (port->send_discover_prime) { + port->tx_sop_type = TCPC_TX_SOP_PRIME; + } else { + port->tx_sop_type = TCPC_TX_SOP; + tcpm_set_initial_svdm_version(port); + } mod_send_discover_delayed_work(port, 0); } else { port->send_discover = false; + port->send_discover_prime = false; } /* @@ -4264,8 +4945,11 @@ static void run_state_machine(struct tcpm_port *port) typec_set_pwr_opmode(port->typec_port, opmode); port->pwr_opmode = TYPEC_PWR_MODE_USB; port->negotiated_rev = PD_MAX_REV; + port->negotiated_rev_prime = PD_MAX_REV; port->message_id = 0; + port->message_id_prime = 0; port->rx_msgid = -1; + port->rx_msgid_prime = -1; port->explicit_contract = false; if (port->ams == POWER_ROLE_SWAP || @@ -4437,14 +5121,23 @@ static void run_state_machine(struct tcpm_port *port) * 6.4.4.3.1 Discover Identity * "The Discover Identity Command Shall only be sent to SOP when there is an * Explicit Contract." - * For now, this driver only supports SOP for DISCOVER_IDENTITY, thus using - * port->explicit_contract. + * + * Discover Identity on SOP' should be discovered prior to the + * ready state, but if done after a Vconn Swap following Discover + * Identity on SOP then the discovery process can be run here + * as well. */ if (port->explicit_contract) { - tcpm_set_initial_svdm_version(port); + if (port->send_discover_prime) { + port->tx_sop_type = TCPC_TX_SOP_PRIME; + } else { + port->tx_sop_type = TCPC_TX_SOP; + tcpm_set_initial_svdm_version(port); + } mod_send_discover_delayed_work(port, 0); } else { port->send_discover = false; + port->send_discover_prime = false; } power_supply_changed(port->psy); @@ -4485,6 +5178,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_unregister_altmodes(port); port->nr_sink_caps = 0; port->send_discover = true; + port->send_discover_prime = false; if (port->pwr_role == TYPEC_SOURCE) tcpm_set_state(port, SRC_HARD_RESET_VBUS_OFF, PD_T_PS_HARD_RESET); @@ -4586,7 +5280,7 @@ static void run_state_machine(struct tcpm_port *port) /* remove existing capabilities */ usb_power_delivery_unregister_capabilities(port->partner_source_caps); port->partner_source_caps = NULL; - tcpm_pd_send_control(port, PD_CTRL_ACCEPT); + tcpm_pd_send_control(port, PD_CTRL_ACCEPT, TCPC_TX_SOP); tcpm_ams_finish(port); if (port->pwr_role == TYPEC_SOURCE) { port->upcoming_state = SRC_SEND_CAPABILITIES; @@ -4603,35 +5297,53 @@ static void run_state_machine(struct tcpm_port *port) tcpm_ams_start(port, SOFT_RESET_AMS); break; case SOFT_RESET_SEND: - port->message_id = 0; - port->rx_msgid = -1; - /* remove existing capabilities */ - usb_power_delivery_unregister_capabilities(port->partner_source_caps); - port->partner_source_caps = NULL; - if (tcpm_pd_send_control(port, PD_CTRL_SOFT_RESET)) - tcpm_set_state_cond(port, hard_reset_state(port), 0); - else - tcpm_set_state_cond(port, hard_reset_state(port), - PD_T_SENDER_RESPONSE); + /* + * Power Delivery 3.0 Section 6.3.13 + * + * A Soft_Reset Message Shall be targeted at a specific entity + * depending on the type of SOP* packet used. + */ + if (port->tx_sop_type == TCPC_TX_SOP_PRIME) { + port->message_id_prime = 0; + port->rx_msgid_prime = -1; + tcpm_pd_send_control(port, PD_CTRL_SOFT_RESET, TCPC_TX_SOP_PRIME); + tcpm_set_state_cond(port, ready_state(port), PD_T_SENDER_RESPONSE); + } else { + port->message_id = 0; + port->rx_msgid = -1; + /* remove existing capabilities */ + usb_power_delivery_unregister_capabilities(port->partner_source_caps); + port->partner_source_caps = NULL; + if (tcpm_pd_send_control(port, PD_CTRL_SOFT_RESET, TCPC_TX_SOP)) + tcpm_set_state_cond(port, hard_reset_state(port), 0); + else + tcpm_set_state_cond(port, hard_reset_state(port), + PD_T_SENDER_RESPONSE); + } break; /* DR_Swap states */ case DR_SWAP_SEND: - tcpm_pd_send_control(port, PD_CTRL_DR_SWAP); - if (port->data_role == TYPEC_DEVICE || port->negotiated_rev > PD_REV20) + tcpm_pd_send_control(port, PD_CTRL_DR_SWAP, TCPC_TX_SOP); + if (port->data_role == TYPEC_DEVICE || port->negotiated_rev > PD_REV20) { port->send_discover = true; + port->send_discover_prime = false; + } tcpm_set_state_cond(port, DR_SWAP_SEND_TIMEOUT, PD_T_SENDER_RESPONSE); break; case DR_SWAP_ACCEPT: - tcpm_pd_send_control(port, PD_CTRL_ACCEPT); - if (port->data_role == TYPEC_DEVICE || port->negotiated_rev > PD_REV20) + tcpm_pd_send_control(port, PD_CTRL_ACCEPT, TCPC_TX_SOP); + if (port->data_role == TYPEC_DEVICE || port->negotiated_rev > PD_REV20) { port->send_discover = true; + port->send_discover_prime = false; + } tcpm_set_state_cond(port, DR_SWAP_CHANGE_DR, 0); break; case DR_SWAP_SEND_TIMEOUT: tcpm_swap_complete(port, -ETIMEDOUT); port->send_discover = false; + port->send_discover_prime = false; tcpm_ams_finish(port); tcpm_set_state(port, ready_state(port), 0); break; @@ -4648,7 +5360,7 @@ static void run_state_machine(struct tcpm_port *port) break; case FR_SWAP_SEND: - if (tcpm_pd_send_control(port, PD_CTRL_FR_SWAP)) { + if (tcpm_pd_send_control(port, PD_CTRL_FR_SWAP, TCPC_TX_SOP)) { tcpm_set_state(port, ERROR_RECOVERY, 0); break; } @@ -4668,7 +5380,7 @@ static void run_state_machine(struct tcpm_port *port) break; case FR_SWAP_SNK_SRC_SOURCE_VBUS_APPLIED: tcpm_set_pwr_role(port, TYPEC_SOURCE); - if (tcpm_pd_send_control(port, PD_CTRL_PS_RDY)) { + if (tcpm_pd_send_control(port, PD_CTRL_PS_RDY, TCPC_TX_SOP)) { tcpm_set_state(port, ERROR_RECOVERY, 0); break; } @@ -4678,11 +5390,11 @@ static void run_state_machine(struct tcpm_port *port) /* PR_Swap states */ case PR_SWAP_ACCEPT: - tcpm_pd_send_control(port, PD_CTRL_ACCEPT); + tcpm_pd_send_control(port, PD_CTRL_ACCEPT, TCPC_TX_SOP); tcpm_set_state(port, PR_SWAP_START, 0); break; case PR_SWAP_SEND: - tcpm_pd_send_control(port, PD_CTRL_PR_SWAP); + tcpm_pd_send_control(port, PD_CTRL_PR_SWAP, TCPC_TX_SOP); tcpm_set_state_cond(port, PR_SWAP_SEND_TIMEOUT, PD_T_SENDER_RESPONSE); break; @@ -4724,7 +5436,7 @@ static void run_state_machine(struct tcpm_port *port) * supply is turned off" */ tcpm_set_pwr_role(port, TYPEC_SINK); - if (tcpm_pd_send_control(port, PD_CTRL_PS_RDY)) { + if (tcpm_pd_send_control(port, PD_CTRL_PS_RDY, TCPC_TX_SOP)) { tcpm_set_state(port, ERROR_RECOVERY, 0); break; } @@ -4771,17 +5483,17 @@ static void run_state_machine(struct tcpm_port *port) * Source." */ tcpm_set_pwr_role(port, TYPEC_SOURCE); - tcpm_pd_send_control(port, PD_CTRL_PS_RDY); + tcpm_pd_send_control(port, PD_CTRL_PS_RDY, TCPC_TX_SOP); tcpm_set_state(port, SRC_STARTUP, PD_T_SWAP_SRC_START); break; case VCONN_SWAP_ACCEPT: - tcpm_pd_send_control(port, PD_CTRL_ACCEPT); + tcpm_pd_send_control(port, PD_CTRL_ACCEPT, TCPC_TX_SOP); tcpm_ams_finish(port); tcpm_set_state(port, VCONN_SWAP_START, 0); break; case VCONN_SWAP_SEND: - tcpm_pd_send_control(port, PD_CTRL_VCONN_SWAP); + tcpm_pd_send_control(port, PD_CTRL_VCONN_SWAP, TCPC_TX_SOP); tcpm_set_state(port, VCONN_SWAP_SEND_TIMEOUT, PD_T_SENDER_RESPONSE); break; @@ -4800,14 +5512,34 @@ static void run_state_machine(struct tcpm_port *port) PD_T_VCONN_SOURCE_ON); break; case VCONN_SWAP_TURN_ON_VCONN: - tcpm_set_vconn(port, true); - tcpm_pd_send_control(port, PD_CTRL_PS_RDY); - tcpm_set_state(port, ready_state(port), 0); + ret = tcpm_set_vconn(port, true); + tcpm_pd_send_control(port, PD_CTRL_PS_RDY, TCPC_TX_SOP); + /* + * USB PD 3.0 Section 6.4.4.3.1 + * + * Note that a Cable Plug or VPD will not be ready for PD + * Communication until tVCONNStable after VCONN has been applied + */ + if (!ret) + tcpm_set_state(port, VCONN_SWAP_SEND_SOFT_RESET, + PD_T_VCONN_STABLE); + else + tcpm_set_state(port, ready_state(port), 0); break; case VCONN_SWAP_TURN_OFF_VCONN: tcpm_set_vconn(port, false); tcpm_set_state(port, ready_state(port), 0); break; + case VCONN_SWAP_SEND_SOFT_RESET: + tcpm_swap_complete(port, port->swap_status); + if (tcpm_can_communicate_sop_prime(port)) { + port->tx_sop_type = TCPC_TX_SOP_PRIME; + port->upcoming_state = SOFT_RESET_SEND; + tcpm_ams_start(port, SOFT_RESET_AMS); + } else { + tcpm_set_state(port, ready_state(port), 0); + } + break; case DR_SWAP_CANCEL: case PR_SWAP_CANCEL: @@ -4843,7 +5575,7 @@ static void run_state_machine(struct tcpm_port *port) } break; case GET_STATUS_SEND: - tcpm_pd_send_control(port, PD_CTRL_GET_STATUS); + tcpm_pd_send_control(port, PD_CTRL_GET_STATUS, TCPC_TX_SOP); tcpm_set_state(port, GET_STATUS_SEND_TIMEOUT, PD_T_SENDER_RESPONSE); break; @@ -4851,7 +5583,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_state(port, ready_state(port), 0); break; case GET_PPS_STATUS_SEND: - tcpm_pd_send_control(port, PD_CTRL_GET_PPS_STATUS); + tcpm_pd_send_control(port, PD_CTRL_GET_PPS_STATUS, TCPC_TX_SOP); tcpm_set_state(port, GET_PPS_STATUS_SEND_TIMEOUT, PD_T_SENDER_RESPONSE); break; @@ -4859,7 +5591,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_set_state(port, ready_state(port), 0); break; case GET_SINK_CAP: - tcpm_pd_send_control(port, PD_CTRL_GET_SINK_CAP); + tcpm_pd_send_control(port, PD_CTRL_GET_SINK_CAP, TCPC_TX_SOP); tcpm_set_state(port, GET_SINK_CAP_TIMEOUT, PD_T_SENDER_RESPONSE); break; case GET_SINK_CAP_TIMEOUT: @@ -4902,9 +5634,18 @@ static void run_state_machine(struct tcpm_port *port) /* Chunk state */ case CHUNK_NOT_SUPP: - tcpm_pd_send_control(port, PD_CTRL_NOT_SUPP); + tcpm_pd_send_control(port, PD_CTRL_NOT_SUPP, TCPC_TX_SOP); tcpm_set_state(port, port->pwr_role == TYPEC_SOURCE ? SRC_READY : SNK_READY, 0); break; + + /* Cable states */ + case SRC_VDM_IDENTITY_REQUEST: + port->send_discover_prime = true; + port->tx_sop_type = TCPC_TX_SOP_PRIME; + mod_send_discover_delayed_work(port, 0); + port->upcoming_state = SRC_SEND_CAPABILITIES; + break; + default: WARN(1, "Unexpected port state %d\n", port->state); break; @@ -5596,7 +6337,8 @@ static void tcpm_enable_frs_work(struct kthread_work *work) goto unlock; /* Send when the state machine is idle */ - if (port->state != SNK_READY || port->vdm_sm_running || port->send_discover) + if (port->state != SNK_READY || port->vdm_sm_running || port->send_discover || + port->send_discover_prime) goto resched; port->upcoming_state = GET_SINK_CAP; @@ -5619,21 +6361,23 @@ static void tcpm_send_discover_work(struct kthread_work *work) mutex_lock(&port->lock); /* No need to send DISCOVER_IDENTITY anymore */ - if (!port->send_discover) + if (!port->send_discover && !port->send_discover_prime) goto unlock; if (port->data_role == TYPEC_DEVICE && port->negotiated_rev < PD_REV30) { port->send_discover = false; + port->send_discover_prime = false; goto unlock; } /* Retry if the port is not idle */ - if ((port->state != SRC_READY && port->state != SNK_READY) || port->vdm_sm_running) { + if ((port->state != SRC_READY && port->state != SNK_READY && + port->state != SRC_VDM_IDENTITY_REQUEST) || port->vdm_sm_running) { mod_send_discover_delayed_work(port, SEND_DISCOVER_RETRY_MS); goto unlock; } - tcpm_send_vdm(port, USB_SID_PD, CMD_DISCOVER_IDENT, NULL, 0); + tcpm_send_vdm(port, USB_SID_PD, CMD_DISCOVER_IDENT, NULL, 0, port->tx_sop_type); unlock: mutex_unlock(&port->lock); @@ -6860,6 +7604,8 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) typec_port_register_altmodes(port->typec_port, &tcpm_altmode_ops, port, port->port_altmode, ALTMODE_DISCOVERY_MAX); + typec_port_register_cable_ops(port->port_altmode, ARRAY_SIZE(port->port_altmode), + &tcpm_cable_ops); port->registered = true; mutex_lock(&port->lock); diff --git a/drivers/usb/typec/tcpm/wcove.c b/drivers/usb/typec/tcpm/wcove.c index 87d4abde0ea279..cf719307b3f6b9 100644 --- a/drivers/usb/typec/tcpm/wcove.c +++ b/drivers/usb/typec/tcpm/wcove.c @@ -535,7 +535,7 @@ static irqreturn_t wcove_typec_irq(int irq, void *data) goto err; } - tcpm_pd_receive(wcove->tcpm, &msg); + tcpm_pd_receive(wcove->tcpm, &msg, TCPC_TX_SOP); ret = regmap_read(wcove->regmap, USBC_RXSTATUS, &status); |