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Groups > linux.kernel > #1730063
| From | Guenter Roeck <linux@roeck-us.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/5] staging: typec: tcpm: Document data structures |
| Date | 2017-09-10 22:40 +0200 |
| Message-ID | <uohbn-Dm-27@gated-at.bofh.it> (permalink) |
| References | <uohbj-Dm-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Document struct tcpc_config and struct tcpc_dev.
Drop unused TCPC_USB_SWITCH_RESTORE.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
drivers/staging/typec/tcpm.h | 57 ++++++++++++++++++++++++++++++++++++++------
1 file changed, 50 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/typec/tcpm.h b/drivers/staging/typec/tcpm.h
index 7e9a6b7b5cd6..073197f0d2bb 100644
--- a/drivers/staging/typec/tcpm.h
+++ b/drivers/staging/typec/tcpm.h
@@ -54,6 +54,27 @@ enum tcpm_transmit_type {
TCPC_TX_BIST_MODE_2 = 7
};
+/**
+ * struct tcpc_config - Port configuration
+ * @src_pdo: PDO parameters sent to port partner as response to
+ * PD_CTRL_GET_SOURCE_CAP message
+ * @nr_src_pdo: Number of entries in @src_pdo
+ * @snk_pdo: PDO parameters sent to partner as response to
+ * PD_CTRL_GET_SINK_CAP message
+ * @nr_snk_pdo: Number of entries in @snk_pdo
+ * @max_snk_mv: Maximum acceptable sink voltage in mV
+ * @max_snk_ma: Maximum sink current in mA
+ * @max_snk_mw: Maximum required sink power in mW
+ * @operating_snk_mw:
+ * Required operating sink power in mW
+ * @type: Port type (TYPEC_PORT_DFP, TYPEC_PORT_UFP, or
+ * TYPEC_PORT_DRP)
+ * @default_role:
+ * Default port role (TYPEC_SINK or TYPEC_SOURCE).
+ * Set to TYPEC_NO_PREFERRED_ROLE if no default role.
+ * @try_role_hw:True if try.{Src,Snk} is implemented in hardware
+ * @alt_modes: List of supported alternate modes
+ */
struct tcpc_config {
const u32 *src_pdo;
unsigned int nr_src_pdo;
@@ -79,7 +100,6 @@ struct tcpc_config {
enum tcpc_usb_switch {
TCPC_USB_SWITCH_CONNECT,
TCPC_USB_SWITCH_DISCONNECT,
- TCPC_USB_SWITCH_RESTORE, /* TODO FIXME */
};
/* Mux state attributes */
@@ -104,17 +124,40 @@ struct tcpc_mux_dev {
void *priv_data;
};
+/**
+ * struct tcpc_dev - Port configuration and callback functions
+ * @config: Pointer to port configuration
+ * @get_vbus: Called to read current VBUS state
+ * @get_current_limit:
+ * Optional; called by the tcpm core when configured as a snk
+ * and cc=Rp-def. This allows the tcpm to provide a fallback
+ * current-limit detection method for the cc=Rp-def case.
+ * For example, some tcpcs may include BC1.2 charger detection
+ * and use that in this case.
+ * @set_cc: Called to set value of CC pins
+ * @get_cc: Called to read current CC pin values
+ * @set_polarity:
+ * Called to set polarity
+ * @set_vconn: Called to enable or disable VCONN
+ * @set_vbus: Called to enable or disable VBUS
+ * @set_current_limit:
+ * Optional; called to set current limit as negotiated
+ * with partner.
+ * @set_pd_rx: Called to enable or disable reception of PD messages
+ * @set_roles: Called to set power and data roles
+ * @start_drp_toggling:
+ * Optional; if supported by hardware, called to start DRP
+ * toggling. DRP toggling is stopped automatically if
+ * a connection is established.
+ * @try_role: Optional; called to set a preferred role
+ * @pd_transmit:Called to transmit PD message
+ * @mux: Pointer to multiplexer data
+ */
struct tcpc_dev {
const struct tcpc_config *config;
int (*init)(struct tcpc_dev *dev);
int (*get_vbus)(struct tcpc_dev *dev);
- /*
- * This optional callback gets called by the tcpm core when configured
- * as a snk and cc=Rp-def. This allows the tcpm to provide a fallback
- * current-limit detection method for the cc=Rp-def case. E.g. some
- * tcpcs may include BC1.2 charger detection and use that in this case.
- */
int (*get_current_limit)(struct tcpc_dev *dev);
int (*set_cc)(struct tcpc_dev *dev, enum typec_cc_status cc);
int (*get_cc)(struct tcpc_dev *dev, enum typec_cc_status *cc1,
--
2.7.4
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[PATCH 1/5] staging: typec: tcpm: Drop commented out code Guenter Roeck <linux@roeck-us.net> - 2017-09-10 22:40 +0200
[PATCH 3/5] staging: typec: pd: Document struct pd_message Guenter Roeck <linux@roeck-us.net> - 2017-09-10 22:40 +0200
Re: [PATCH 3/5] staging: typec: pd: Document struct pd_message Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2017-09-11 12:10 +0200
[PATCH 2/5] staging: typec: tcpm: Document data structures Guenter Roeck <linux@roeck-us.net> - 2017-09-10 22:40 +0200
Re: [PATCH 4/5] typec: tcpm: Move out of staging Joe Perches <joe@perches.com> - 2017-09-10 22:50 +0200
Re: [PATCH 4/5] typec: tcpm: Move out of staging Guenter Roeck <linux@roeck-us.net> - 2017-09-10 23:20 +0200
Re: [PATCH 1/5] staging: typec: tcpm: Drop commented out code Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-09-11 18:30 +0200
Re: [PATCH 1/5] staging: typec: tcpm: Drop commented out code Guenter Roeck <linux@roeck-us.net> - 2017-09-11 19:40 +0200
Re: [PATCH 1/5] staging: typec: tcpm: Drop commented out code Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-09-11 20:30 +0200
Re: [PATCH 1/5] staging: typec: tcpm: Drop commented out code Guenter Roeck <linux@roeck-us.net> - 2017-09-11 22:00 +0200
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