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Date: Sat, 29 Oct 2022 02:03:56 -0700 From: Shane Parslow <shaneparslow808@...il.com> To: loic.poulain@...aro.org Cc: Shane Parslow <shaneparslow808@...il.com>, M Chetan Kumar <m.chetan.kumar@...el.com>, Intel Corporation <linuxwwan@...el.com>, Sergey Ryazanov <ryazanov.s.a@...il.com>, Johannes Berg <johannes@...solutions.net>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH net-next v2] net: wwan: iosm: add rpc interface for xmm modems Add a new iosm wwan port that connects to the modem rpc interface. This interface provides a configuration channel, and in the case of the 7360, is the only way to configure the modem (as it does not support mbim). The new interface is compatible with existing software, such as open_xdatachannel.py from the xmm7360-pci project [1]. [1] https://github.com/xmm7360/xmm7360-pci Signed-off-by: Shane Parslow <shaneparslow808@...il.com> --- drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.c | 2 +- drivers/net/wwan/wwan_core.c | 4 ++++ include/linux/wwan.h | 2 ++ 3 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.c b/drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.c index 128c999e08bb..bcfbc6b3d617 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.c +++ b/drivers/net/wwan/iosm/iosm_ipc_chnl_cfg.c @@ -39,7 +39,7 @@ static struct ipc_chnl_cfg modem_cfg[] = { /* RPC - 0 */ { IPC_MEM_CTRL_CHL_ID_1, IPC_MEM_PIPE_2, IPC_MEM_PIPE_3, IPC_MEM_MAX_TDS_RPC, IPC_MEM_MAX_TDS_RPC, - IPC_MEM_MAX_DL_RPC_BUF_SIZE, WWAN_PORT_UNKNOWN }, + IPC_MEM_MAX_DL_RPC_BUF_SIZE, WWAN_PORT_XMMRPC }, /* IAT0 */ { IPC_MEM_CTRL_CHL_ID_2, IPC_MEM_PIPE_4, IPC_MEM_PIPE_5, IPC_MEM_MAX_TDS_AT, IPC_MEM_MAX_TDS_AT, IPC_MEM_MAX_DL_AT_BUF_SIZE, diff --git a/drivers/net/wwan/wwan_core.c b/drivers/net/wwan/wwan_core.c index 62e9f7d6c9fe..4988d91d00bb 100644 --- a/drivers/net/wwan/wwan_core.c +++ b/drivers/net/wwan/wwan_core.c @@ -319,6 +319,10 @@ static const struct { .name = "FIREHOSE", .devsuf = "firehose", }, + [WWAN_PORT_XMMRPC] = { + .name = "XMMRPC", + .devsuf = "xmmrpc", + }, }; static ssize_t type_show(struct device *dev, struct device_attribute *attr, diff --git a/include/linux/wwan.h b/include/linux/wwan.h index 5ce2acf444fb..24d76500b1cc 100644 --- a/include/linux/wwan.h +++ b/include/linux/wwan.h @@ -15,6 +15,7 @@ * @WWAN_PORT_QMI: Qcom modem/MSM interface for modem control * @WWAN_PORT_QCDM: Qcom Modem diagnostic interface * @WWAN_PORT_FIREHOSE: XML based command protocol + * @WWAN_PORT_XMMRPC: Control protocol for Intel XMM modems * * @WWAN_PORT_MAX: Highest supported port types * @WWAN_PORT_UNKNOWN: Special value to indicate an unknown port type @@ -26,6 +27,7 @@ enum wwan_port_type { WWAN_PORT_QMI, WWAN_PORT_QCDM, WWAN_PORT_FIREHOSE, + WWAN_PORT_XMMRPC, /* Add new port types above this line */ -- 2.38.1
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