diff options
Diffstat (limited to 'include/linux/mhi.h')
| -rw-r--r-- | include/linux/mhi.h | 66 |
1 files changed, 17 insertions, 49 deletions
diff --git a/include/linux/mhi.h b/include/linux/mhi.h index 059dc94d20bb..fb3ba639f4f8 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -86,16 +86,32 @@ enum mhi_ch_type { }; /** + * struct mhi_buf - MHI Buffer description + * @buf: Virtual address of the buffer + * @name: Buffer label. For offload channel, configurations name must be: + * ECA - Event context array data + * CCA - Channel context array data + * @dma_addr: IOMMU address of the buffer + * @len: # of bytes + */ +struct mhi_buf { + void *buf; + const char *name; + dma_addr_t dma_addr; + size_t len; +}; + +/** * struct image_info - Firmware and RDDM table * @mhi_buf: Buffer for firmware and RDDM table * @entries: # of entries in table */ struct image_info { - struct mhi_buf *mhi_buf; /* private: from internal.h */ struct bhi_vec_entry *bhi_vec; /* public: */ u32 entries; + struct mhi_buf mhi_buf[] __counted_by(entries); }; /** @@ -215,7 +231,6 @@ enum mhi_db_brst_mode { * @lpm_notify: The channel master requires low power mode notifications * @offload_channel: The client manages the channel completely * @doorbell_mode_switch: Channel switches to doorbell mode on M0 transition - * @auto_queue: Framework will automatically queue buffers for DL traffic * @wake-capable: Channel capable of waking up the system */ struct mhi_channel_config { @@ -232,7 +247,6 @@ struct mhi_channel_config { bool lpm_notify; bool offload_channel; bool doorbell_mode_switch; - bool auto_queue; bool wake_capable; }; @@ -491,22 +505,6 @@ struct mhi_result { }; /** - * struct mhi_buf - MHI Buffer description - * @buf: Virtual address of the buffer - * @name: Buffer label. For offload channel, configurations name must be: - * ECA - Event context array data - * CCA - Channel context array data - * @dma_addr: IOMMU address of the buffer - * @len: # of bytes - */ -struct mhi_buf { - void *buf; - const char *name; - dma_addr_t dma_addr; - size_t len; -}; - -/** * struct mhi_driver - Structure representing a MHI client driver * @probe: CB function for client driver probe function * @remove: CB function for client driver remove function @@ -721,12 +719,6 @@ enum mhi_state mhi_get_mhi_state(struct mhi_controller *mhi_cntrl); void mhi_soc_reset(struct mhi_controller *mhi_cntrl); /** - * mhi_device_get - Disable device low power mode - * @mhi_dev: Device associated with the channel - */ -void mhi_device_get(struct mhi_device *mhi_dev); - -/** * mhi_device_get_sync - Disable device low power mode. Synchronously * take the controller out of suspended state * @mhi_dev: Device associated with the channel @@ -750,18 +742,6 @@ void mhi_device_put(struct mhi_device *mhi_dev); int mhi_prepare_for_transfer(struct mhi_device *mhi_dev); /** - * mhi_prepare_for_transfer_autoqueue - Setup UL and DL channels with auto queue - * buffers for DL traffic - * @mhi_dev: Device associated with the channels - * - * Allocate and initialize the channel context and also issue the START channel - * command to both channels. Channels can be started only if both host and - * device execution environments match and channels are in a DISABLED state. - * The MHI core will automatically allocate and queue buffers for the DL traffic. - */ -int mhi_prepare_for_transfer_autoqueue(struct mhi_device *mhi_dev); - -/** * mhi_unprepare_from_transfer - Reset UL and DL channels for data transfer. * Issue the RESET channel command and let the * device clean-up the context so no incoming @@ -777,18 +757,6 @@ int mhi_prepare_for_transfer_autoqueue(struct mhi_device *mhi_dev); void mhi_unprepare_from_transfer(struct mhi_device *mhi_dev); /** - * mhi_queue_dma - Send or receive DMA mapped buffers from client device - * over MHI channel - * @mhi_dev: Device associated with the channels - * @dir: DMA direction for the channel - * @mhi_buf: Buffer for holding the DMA mapped data - * @len: Buffer length - * @mflags: MHI transfer flags used for the transfer - */ -int mhi_queue_dma(struct mhi_device *mhi_dev, enum dma_data_direction dir, - struct mhi_buf *mhi_buf, size_t len, enum mhi_flags mflags); - -/** * mhi_queue_buf - Send or receive raw buffers from client device over MHI * channel * @mhi_dev: Device associated with the channels |