Messages in this thread | | | Date | Thu, 11 Jun 2015 17:24:19 +0530 | Subject | Re: [PATCH v4 2/8] firmware: add support for ARM System Control and Power Interface(SCPI) protocol | From | Jassi Brar <> |
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On 8 June 2015 at 16:09, Sudeep Holla <sudeep.holla@arm.com> wrote: ... > + > +static void scpi_process_cmd(struct scpi_chan *ch, u32 cmd) > +{ > + unsigned long flags; > + struct scpi_xfer *t, *match = NULL; > + > + spin_lock_irqsave(&ch->rx_lock, flags); > + if (list_empty(&ch->rx_pending)) { > + spin_unlock_irqrestore(&ch->rx_lock, flags); > + return; > + } > + > + list_for_each_entry(t, &ch->rx_pending, node) > + if (CMD_XTRACT_UNIQ(t->cmd) == CMD_XTRACT_UNIQ(cmd)) { > + list_del(&t->node); > + match = t; > + break; > + } > + /* check if wait_for_completion is in progress or timed-out */ > + if (match && !completion_done(&match->done)) { > + struct scpi_shared_mem *mem = ch->rx_payload; > + unsigned int len = min(match->rx_len, CMD_SIZE(cmd)); > + > + match->status = le32_to_cpu(mem->status); > + memcpy_fromio(match->rx_buf, mem->payload, len); > + if (match->rx_len > len) > + memset(match->rx_buf + len, 0, match->rx_len - len); > + complete(&match->done); > + } > + spin_unlock_irqrestore(&ch->rx_lock, flags); > +} There doesn't seem to be support for commands sent by remote? Something like when remote is the thermal master and it needs to send sensor readings crossing thresholds.
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