From patchwork Tue Nov 5 06:12:40 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arun Kumar K X-Patchwork-Id: 3139451 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 52F47BEEB2 for ; Tue, 5 Nov 2013 06:13:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5488120613 for ; Tue, 5 Nov 2013 06:13:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D5CAD20614 for ; Tue, 5 Nov 2013 06:13:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753819Ab3KEGNq (ORCPT ); Tue, 5 Nov 2013 01:13:46 -0500 Received: from mail-pd0-f180.google.com ([209.85.192.180]:56412 "EHLO mail-pd0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753759Ab3KEGNp (ORCPT ); Tue, 5 Nov 2013 01:13:45 -0500 Received: by mail-pd0-f180.google.com with SMTP id p10so7737253pdj.25 for ; Mon, 04 Nov 2013 22:13:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=GpnYP8VeIKy+QouhILM5uv1OnWahCfOdtiumJVe9BYs=; b=i/fDn+SU1QS02P+XxYpj8DJ6rsayywDDLMWxGO9738cbju/UPtwXSqK6qp9Gx5gtj2 RqjvXaHZtzJ2tB85P3p0+6rJQXOUccwfIG+CMQHzBIR7XCYSyb/CXXnUBjCzE/DFs8ls riA/KAerhnTfz3J8nprJyxRzme2s3f8S/9WOjR+XuBccB6jibYynX1iudMtASI/+EFQZ TvlycyfkloYizr/mSUOhaA0al5gNuLmj/UMR2ApmWsl4l3nVHrNeW5c/D04zG14YPgeL Wyji7ZLZnswGdVUVaaOC7CotRW5+bGBKW0tvlGzQkjBB9w/wqYpCkDprEEADY9BYfESd dw4A== X-Received: by 10.68.225.232 with SMTP id rn8mr21040365pbc.32.1383632023974; Mon, 04 Nov 2013 22:13:43 -0800 (PST) Received: from localhost.localdomain ([115.113.119.130]) by mx.google.com with ESMTPSA id ye1sm37810196pab.19.2013.11.04.22.13.39 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 04 Nov 2013 22:13:43 -0800 (PST) From: Arun Kumar K To: linux-media@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org Cc: s.nawrocki@samsung.com, hverkuil@xs4all.nl, swarren@wwwdotorg.org, mark.rutland@arm.com, Pawel.Moll@arm.com, galak@codeaurora.org, a.hajda@samsung.com, sachin.kamat@linaro.org, shaik.ameer@samsung.com, kilyeon.im@samsung.com, arunkk.samsung@gmail.com Subject: [PATCH v11 09/12] [media] exynos5-fimc-is: Add the hardware interface module Date: Tue, 5 Nov 2013 11:42:40 +0530 Message-Id: <1383631964-26514-10-git-send-email-arun.kk@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1383631964-26514-1-git-send-email-arun.kk@samsung.com> References: <1383631964-26514-1-git-send-email-arun.kk@samsung.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The hardware interface module finally sends the commands to the FIMC-IS firmware and runs the interrupt handler for getting the responses. Signed-off-by: Arun Kumar K Signed-off-by: Kilyeon Im Reviewed-by: Sylwester Nawrocki --- .../media/platform/exynos5-is/fimc-is-interface.c | 810 ++++++++++++++++++++ .../media/platform/exynos5-is/fimc-is-interface.h | 124 +++ 2 files changed, 934 insertions(+) create mode 100644 drivers/media/platform/exynos5-is/fimc-is-interface.c create mode 100644 drivers/media/platform/exynos5-is/fimc-is-interface.h diff --git a/drivers/media/platform/exynos5-is/fimc-is-interface.c b/drivers/media/platform/exynos5-is/fimc-is-interface.c new file mode 100644 index 0000000..c5da6ff --- /dev/null +++ b/drivers/media/platform/exynos5-is/fimc-is-interface.c @@ -0,0 +1,810 @@ +/* + * Samsung EXYNOS5 FIMC-IS (Imaging Subsystem) driver +* + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Kil-yeon Lim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include "fimc-is.h" +#include "fimc-is-cmd.h" +#include "fimc-is-regs.h" + +#define init_request_barrier(itf) mutex_init(&itf->request_barrier) +#define enter_request_barrier(itf) mutex_lock(&itf->request_barrier) +#define exit_request_barrier(itf) mutex_unlock(&itf->request_barrier) + +static inline void itf_get_cmd(struct fimc_is_interface *itf, + struct fimc_is_msg *msg, unsigned int index) +{ + struct is_common_reg __iomem *com_regs = itf->com_regs; + + memset(msg, 0, sizeof(*msg)); + + switch (index) { + case INTR_GENERAL: + msg->command = com_regs->ihcmd; + msg->instance = com_regs->ihc_sensorid; + memcpy(msg->param, com_regs->ihc_param, + 4 * sizeof(msg->param[0])); + break; + case INTR_SCC_FDONE: + msg->command = IHC_FRAME_DONE; + msg->instance = com_regs->scc_sensor_id; + memcpy(msg->param, com_regs->scc_param, + 3 * sizeof(msg->param[0])); + break; + case INTR_SCP_FDONE: + msg->command = IHC_FRAME_DONE; + msg->instance = com_regs->scp_sensor_id; + memcpy(msg->param, com_regs->scp_param, + 3 * sizeof(msg->param[0])); + break; + case INTR_META_DONE: + msg->command = IHC_FRAME_DONE; + msg->instance = com_regs->meta_sensor_id; + msg->param[0] = com_regs->meta_param1; + break; + case INTR_SHOT_DONE: + msg->command = IHC_FRAME_DONE; + msg->instance = com_regs->shot_sensor_id; + memcpy(msg->param, com_regs->shot_param, + 2 * sizeof(msg->param[0])); + break; + default: + dev_err(itf->dev, "%s Unknown command\n", __func__); + break; + } +} + +static inline unsigned int itf_get_intr(struct fimc_is_interface *itf) +{ + unsigned int status; + struct is_common_reg __iomem *com_regs = itf->com_regs; + + status = readl(itf->regs + INTMSR1) | com_regs->ihcmd_iflag | + com_regs->scc_iflag | + com_regs->scp_iflag | + com_regs->meta_iflag | + com_regs->shot_iflag; + + return status; +} + +static void itf_set_state(struct fimc_is_interface *itf, + unsigned long state) +{ + unsigned long flags; + spin_lock_irqsave(&itf->slock_state, flags); + __set_bit(state, &itf->state); + spin_unlock_irqrestore(&itf->slock_state, flags); +} + +static void itf_clr_state(struct fimc_is_interface *itf, + unsigned long state) +{ + unsigned long flags; + spin_lock_irqsave(&itf->slock_state, flags); + __clear_bit(state, &itf->state); + spin_unlock_irqrestore(&itf->slock_state, flags); +} + +static int itf_get_state(struct fimc_is_interface *itf, + unsigned long state) +{ + int ret = 0; + unsigned long flags; + + spin_lock_irqsave(&itf->slock_state, flags); + ret = test_bit(state, &itf->state); + spin_unlock_irqrestore(&itf->slock_state, flags); + return ret; +} + +static void itf_init_wakeup(struct fimc_is_interface *itf) +{ + itf_set_state(itf, IS_IF_STATE_INIT); + wake_up(&itf->irq_queue); +} + +void itf_busy_wakeup(struct fimc_is_interface *itf) +{ + itf_clr_state(itf, IS_IF_STATE_BUSY); + wake_up(&itf->irq_queue); +} + +static int itf_wait_hw_ready(struct fimc_is_interface *itf) +{ + int t; + for (t = TRY_RECV_AWARE_COUNT; t >= 0; t--) { + unsigned int cfg = readl(itf->regs + INTMSR0); + if (INTMSR0_GET_INTMSD(0, cfg) == 0) + return 0; + } + dev_err(itf->dev, "INTMSR0's 0 bit is not cleared.\n"); + return -EINVAL; +} + +static int itf_wait_idlestate(struct fimc_is_interface *itf) +{ + int ret; + + ret = wait_event_timeout(itf->irq_queue, + !itf_get_state(itf, IS_IF_STATE_BUSY), + FIMC_IS_COMMAND_TIMEOUT); + if (!ret) { + dev_err(itf->dev, "%s Timeout\n", __func__); + return -ETIME; + } + return 0; +} + +int fimc_is_itf_wait_init_state(struct fimc_is_interface *itf) +{ + int ret; + + ret = wait_event_timeout(itf->irq_queue, + itf_get_state(itf, IS_IF_STATE_INIT), + FIMC_IS_STARTUP_TIMEOUT); + + if (!ret) { + dev_err(itf->dev, "%s Timeout\n", __func__); + return -ETIME; + } + return 0; +} + +/* Send Host to IS command interrupt */ +static void itf_hic_interrupt(struct fimc_is_interface *itf) +{ + writel(INTGR0_INTGD(0), itf->regs + INTGR0); +} + +static int itf_send_sensor_number(struct fimc_is_interface *itf) +{ + struct fimc_is_msg msg = { + .command = ISR_DONE, + .param = { IHC_GET_SENSOR_NUMBER, 1 }, + }; + unsigned long flags; + + spin_lock_irqsave(&itf->slock, flags); + itf->com_regs->hicmd = msg.command; + itf->com_regs->hic_sensorid = msg.instance; + memcpy(itf->com_regs->hic_param, msg.param, + 4 * sizeof(itf->com_regs->hic_param[0])); + itf_hic_interrupt(itf); + spin_unlock_irqrestore(&itf->slock, flags); + + return 0; +} + +static int fimc_is_itf_set_cmd(struct fimc_is_interface *itf, + struct fimc_is_msg *msg) +{ + int ret = 0; + bool block_io = true; + unsigned long flags; + + enter_request_barrier(itf); + + switch (msg->command) { + case HIC_STREAM_ON: + if (itf->streaming == IS_IF_STREAMING_ON) + goto exit; + break; + case HIC_STREAM_OFF: + if (itf->streaming == IS_IF_STREAMING_OFF) + goto exit; + break; + case HIC_PROCESS_START: + if (itf->processing == IS_IF_PROCESSING_ON) + goto exit; + break; + case HIC_PROCESS_STOP: + if (itf->processing == IS_IF_PROCESSING_OFF) + goto exit; + break; + case HIC_POWER_DOWN: + if (itf->pdown_ready == IS_IF_POWER_DOWN_READY) + goto exit; + break; + case HIC_SHOT: + case ISR_DONE: + block_io = false; + break; + } + + ret = itf_wait_hw_ready(itf); + if (ret) { + dev_err(itf->dev, "%s: itf_wait_hw_ready() failed", __func__); + ret = -EBUSY; + goto exit; + } + + spin_lock_irqsave(&itf->slock, flags); + itf_set_state(itf, IS_IF_STATE_BUSY); + itf->com_regs->hicmd = msg->command; + itf->com_regs->hic_sensorid = msg->instance; + memcpy(itf->com_regs->hic_param, msg->param, + 4 * sizeof(itf->com_regs->hic_param[0])); + itf_hic_interrupt(itf); + spin_unlock_irqrestore(&itf->slock, flags); + + if (!block_io) + goto exit; + + ret = itf_wait_idlestate(itf); + if (ret) { + dev_err(itf->dev, "%d command is timeout\n", msg->command); + itf_clr_state(itf, IS_IF_STATE_BUSY); + ret = -ETIME; + goto exit; + } + + if (itf->reply.command == ISR_DONE) { + switch (msg->command) { + case HIC_STREAM_ON: + itf->streaming = IS_IF_STREAMING_ON; + break; + case HIC_STREAM_OFF: + itf->streaming = IS_IF_STREAMING_OFF; + break; + case HIC_PROCESS_START: + itf->processing = IS_IF_PROCESSING_ON; + break; + case HIC_PROCESS_STOP: + itf->processing = IS_IF_PROCESSING_OFF; + break; + case HIC_POWER_DOWN: + itf->pdown_ready = IS_IF_POWER_DOWN_READY; + break; + case HIC_OPEN_SENSOR: + if (itf->reply.param[0] == HIC_POWER_DOWN) { + dev_err(itf->dev, "firmware power down"); + itf->pdown_ready = IS_IF_POWER_DOWN_READY; + ret = -ECANCELED; + goto exit; + } else + itf->pdown_ready = IS_IF_POWER_DOWN_NREADY; + break; + default: + break; + } + } else { + dev_err(itf->dev, "ISR_NDONE occured"); + ret = -EINVAL; + } +exit: + exit_request_barrier(itf); + + if (ret) + dev_err(itf->dev, "Error returned from FW. See debugfs for error log\n"); + + return ret; +} + +static int fimc_is_itf_set_cmd_shot(struct fimc_is_interface *itf, + struct fimc_is_msg *msg) +{ + unsigned long flags; + + spin_lock_irqsave(&itf->slock, flags); + itf->com_regs->hicmd = msg->command; + itf->com_regs->hic_sensorid = msg->instance; + memcpy(itf->com_regs->hic_param, msg->param, + 4 * sizeof(itf->com_regs->hic_param[0])); + itf->com_regs->fcount = msg->param[2]; + itf_hic_interrupt(itf); + spin_unlock_irqrestore(&itf->slock, flags); + + return 0; +} + +static void itf_handle_general(struct fimc_is_interface *itf, + struct fimc_is_msg *msg) +{ + bool is_blocking = true; + + switch (msg->command) { + + case IHC_GET_SENSOR_NUMBER: + pr_debug("IS version : %d.%d\n", + ISDRV_VERSION, msg->param[0]); + /* Respond with sensor number */ + itf_send_sensor_number(itf); + itf_init_wakeup(itf); + break; + case ISR_DONE: + switch (msg->param[0]) { + case HIC_OPEN_SENSOR: + pr_debug("open done\n"); + break; + case HIC_GET_SET_FILE_ADDR: + pr_debug("saddr(%p) done\n", + (void *)msg->param[1]); + break; + case HIC_LOAD_SET_FILE: + pr_debug("setfile done\n"); + break; + case HIC_SET_A5_MEM_ACCESS: + pr_debug("cfgmem done\n"); + break; + case HIC_PROCESS_START: + pr_debug("process_on done\n"); + break; + case HIC_PROCESS_STOP: + pr_debug("process_off done\n"); + break; + case HIC_STREAM_ON: + pr_debug("stream_on done\n"); + break; + case HIC_STREAM_OFF: + pr_debug("stream_off done\n"); + break; + case HIC_SET_PARAMETER: + pr_debug("s_param done\n"); + break; + case HIC_GET_STATIC_METADATA: + pr_debug("g_capability done\n"); + break; + case HIC_PREVIEW_STILL: + pr_debug("a_param(%dx%d) done\n", + msg->param[1], msg->param[2]); + break; + case HIC_POWER_DOWN: + pr_debug("powerdown done\n"); + break; + /* Non-blocking command */ + case HIC_SHOT: + is_blocking = false; + dev_err(itf->dev, "shot done is not acceptable\n"); + break; + case HIC_SET_CAM_CONTROL: + is_blocking = false; + dev_err(itf->dev, "camctrl is not acceptable\n"); + break; + default: + is_blocking = false; + dev_err(itf->dev, "unknown done is invokded\n"); + break; + } + break; + case ISR_NDONE: + switch (msg->param[0]) { + case HIC_SHOT: + is_blocking = false; + dev_err(itf->dev, "shot NOT done is not acceptable\n"); + break; + case HIC_SET_CAM_CONTROL: + is_blocking = false; + pr_debug("camctrl NOT done\n"); + break; + case HIC_SET_PARAMETER: + dev_err(itf->dev, "s_param NOT done\n"); + dev_err(itf->dev, "param2 : 0x%08X\n", msg->param[1]); + dev_err(itf->dev, "param3 : 0x%08X\n", msg->param[2]); + dev_err(itf->dev, "param4 : 0x%08X\n", msg->param[3]); + break; + default: + dev_err(itf->dev, "command(%d) not done", + msg->param[0]); + break; + } + break; + case IHC_SET_FACE_MARK: + is_blocking = false; + dev_err(itf->dev, "FACE_MARK(%d,%d,%d) is not acceptable\n", + msg->param[0], msg->param[1], msg->param[2]); + break; + case IHC_AA_DONE: + is_blocking = false; + dev_err(itf->dev, "AA_DONE(%d,%d,%d) is not acceptable\n", + msg->param[0], msg->param[1], msg->param[2]); + break; + case IHC_FLASH_READY: + is_blocking = false; + dev_err(itf->dev, "IHC_FLASH_READY is not acceptable"); + break; + case IHC_NOT_READY: + is_blocking = false; + dev_err(itf->dev, "IHC_NOT_READY is occured, need reset"); + break; + default: + is_blocking = false; + dev_err(itf->dev, "%s: unknown (#%08X) command\n", + __func__, msg->command); + break; + } + + if (is_blocking) { + memcpy(&itf->reply, msg, sizeof(struct fimc_is_msg)); + itf_busy_wakeup(itf); + } +} + +static void itf_handle_scaler_done(struct fimc_is_interface *itf, + struct fimc_is_msg *msg) +{ + struct fimc_is *is = fimc_interface_to_is(itf); + struct fimc_is_pipeline *pipeline = &is->pipeline[msg->instance]; + struct fimc_is_buf *buf; + struct fimc_is_scaler *scl; + const struct fimc_is_fmt *fmt; + struct timeval *tv; + struct timespec ts; + unsigned int wh, i; + unsigned int fcount = msg->param[0]; + unsigned long *comp_state; + + if (msg->param[3] == SCALER_SCC) { + scl = &pipeline->scaler[SCALER_SCC]; + comp_state = &pipeline->comp_state[IS_SCC]; + } else { + scl = &pipeline->scaler[SCALER_SCP]; + comp_state = &pipeline->comp_state[IS_SCP]; + } + + fmt = scl->fmt; + + fimc_is_pipeline_buf_lock(pipeline); + if (!list_empty(&scl->run_queue)) { + + wh = scl->width * scl->height; + buf = fimc_is_scaler_run_queue_get(scl); + for (i = 0; i < fmt->num_planes; i++) + vb2_set_plane_payload(&buf->vb, i, + (wh * fmt->depth[i]) / 8); + + /* Set timestamp */ + ktime_get_ts(&ts); + tv = &buf->vb.v4l2_buf.timestamp; + tv->tv_sec = ts.tv_sec; + tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC; + buf->vb.v4l2_buf.sequence = fcount; + + pr_debug("SCP buffer done %d/%d\n", + msg->param[0], msg->param[2]); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); + } + fimc_is_pipeline_buf_unlock(pipeline); + clear_bit(COMP_RUN, comp_state); + wake_up(&scl->event_q); +} + +static void itf_handle_shot_done(struct fimc_is_interface *itf, + struct fimc_is_msg *msg) +{ + struct fimc_is *is = fimc_interface_to_is(itf); + struct fimc_is_pipeline *pipeline = &is->pipeline[msg->instance]; + unsigned int status = msg->param[1]; + struct fimc_is_buf *bayer_buf; + int ret; + + if (status != ISR_DONE) + dev_err(itf->dev, "Shot done is invalid(0x%08X)\n", status); + + /* DQ the bayer input buffer */ + fimc_is_pipeline_buf_lock(pipeline); + bayer_buf = fimc_is_isp_run_queue_get(&pipeline->isp); + if (bayer_buf) { + vb2_buffer_done(&bayer_buf->vb, VB2_BUF_STATE_DONE); + pr_debug("Bayer buffer done.\n"); + } + fimc_is_pipeline_buf_unlock(pipeline); + + /* Clear state & call shot again */ + clear_bit(PIPELINE_RUN, &pipeline->state); + + ret = fimc_is_pipeline_shot(pipeline); + if (ret) + dev_err(itf->dev, "Shot failed\n"); +} + +/* Main FIMC-IS interrupt handler */ +static irqreturn_t itf_irq_handler(int irq, void *data) +{ + struct fimc_is_interface *itf = data; + struct fimc_is_msg msg; + unsigned int status, intr; + struct is_common_reg __iomem *com_regs; + + com_regs = itf->com_regs; + status = itf_get_intr(itf); + + for (intr = INTR_GENERAL; intr < INTR_MAX_MAP; intr++) { + + if (status & BIT(intr)) { + itf_get_cmd(itf, &msg, intr); + + switch (intr) { + case INTR_GENERAL: + itf_handle_general(itf, &msg); + com_regs->ihcmd_iflag = 0; + break; + case INTR_SHOT_DONE: + itf_handle_shot_done(itf, &msg); + com_regs->shot_iflag = 0; + break; + case INTR_SCC_FDONE: + msg.param[3] = SCALER_SCC; + itf_handle_scaler_done(itf, &msg); + com_regs->scc_iflag = 0; + break; + case INTR_SCP_FDONE: + msg.param[3] = SCALER_SCP; + itf_handle_scaler_done(itf, &msg); + com_regs->scp_iflag = 0; + break; + case INTR_META_DONE: + com_regs->meta_iflag = 0; + break; + } + status &= ~BIT(intr); + writel(BIT(intr), itf->regs + INTCR1); + } + } + + if (status != 0) + dev_err(itf->dev, "status is NOT all clear(0x%08X)", status); + + return IRQ_HANDLED; +} + +int fimc_is_itf_open_sensor(struct fimc_is_interface *itf, + unsigned int instance, + unsigned int sensor_id, + unsigned int i2c_channel, + unsigned int sensor_ext) +{ + struct fimc_is_msg msg = { + .command = HIC_OPEN_SENSOR, + .instance = instance, + .param = { sensor_id, i2c_channel, sensor_ext }, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_get_setfile_addr(struct fimc_is_interface *itf, + unsigned int instance, unsigned int *setfile_addr) +{ + int ret; + struct fimc_is_msg msg = { + .command = HIC_GET_SET_FILE_ADDR, + .instance = instance, + }; + + ret = fimc_is_itf_set_cmd(itf, &msg); + *setfile_addr = itf->reply.param[1]; + + return ret; +} + +int fimc_is_itf_load_setfile(struct fimc_is_interface *itf, + unsigned int instance) +{ + struct fimc_is_msg msg = { + .command = HIC_LOAD_SET_FILE, + .instance = instance, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_stream_on(struct fimc_is_interface *itf, + unsigned int instance) +{ + struct fimc_is_msg msg = { + .command = HIC_STREAM_ON, + .instance = instance, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_stream_off(struct fimc_is_interface *itf, + unsigned int instance) +{ + struct fimc_is_msg msg = { + .command = HIC_STREAM_OFF, + .instance = instance, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_process_on(struct fimc_is_interface *itf, + unsigned int instance) +{ + struct fimc_is_msg msg = { + .command = HIC_PROCESS_START, + .instance = instance, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_process_off(struct fimc_is_interface *itf, + unsigned int instance) +{ + struct fimc_is_msg msg = { + .command = HIC_PROCESS_STOP, + .instance = instance, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_set_param(struct fimc_is_interface *itf, + unsigned int instance, + unsigned int lindex, + unsigned int hindex) +{ + struct fimc_is_msg msg = { + .command = HIC_SET_PARAMETER, + .instance = instance, + .param = { ISS_PREVIEW_STILL, 0, lindex, hindex }, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_preview_still(struct fimc_is_interface *itf, + unsigned int instance) +{ + struct fimc_is_msg msg = { + .command = HIC_PREVIEW_STILL, + .instance = instance, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_get_capability(struct fimc_is_interface *itf, + unsigned int instance, unsigned int address) +{ + struct fimc_is_msg msg = { + .command = HIC_GET_STATIC_METADATA, + .instance = instance, + .param[0] = address, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_cfg_mem(struct fimc_is_interface *itf, + unsigned int instance, unsigned int address, + unsigned int size) +{ + struct fimc_is_msg msg = { + .command = HIC_SET_A5_MEM_ACCESS, + .instance = instance, + .param = { address, size }, + }; + + return fimc_is_itf_set_cmd(itf, &msg); +} + +int fimc_is_itf_shot_nblk(struct fimc_is_interface *itf, + unsigned int instance, unsigned int bayer, + unsigned int shot, unsigned int fcount, unsigned int rcount) +{ + struct fimc_is_msg msg = { + .command = HIC_SHOT, + .instance = instance, + .param = { bayer, shot, fcount, rcount }, + }; + + return fimc_is_itf_set_cmd_shot(itf, &msg); +} + +int fimc_is_itf_power_down(struct fimc_is_interface *itf, + unsigned int instance) +{ + int ret; + struct fimc_is_msg msg = { + .command = HIC_POWER_DOWN, + .instance = instance, + }; + + ret = fimc_is_itf_set_cmd(itf, &msg); + itf_clr_state(itf, IS_IF_STATE_INIT); + + return ret; +} + +/* Debugfs for showing FW debug messages */ +static int fimc_is_log_show(struct seq_file *s, void *data) +{ + struct fimc_is_interface *itf = s->private; + struct fimc_is *is = fimc_interface_to_is(itf); + + const u8 *buf = (u8 *) (is->minfo.fw.vaddr + DEBUG_OFFSET); + + if (is->minfo.fw.vaddr == 0) { + dev_err(itf->dev, "Firmware memory is not initialized\n"); + return -EIO; + } + + seq_printf(s, "%s\n", buf); + return 0; +} + +static int fimc_is_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, fimc_is_log_show, inode->i_private); +} + +static const struct file_operations fimc_is_debugfs_fops = { + .open = fimc_is_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void fimc_is_debugfs_remove(struct fimc_is_interface *itf) +{ + debugfs_remove(itf->debugfs_entry); + itf->debugfs_entry = NULL; +} + +static int fimc_is_debugfs_create(struct fimc_is_interface *itf) +{ + struct dentry *dentry; + + itf->debugfs_entry = debugfs_create_dir("fimc_is", NULL); + + dentry = debugfs_create_file("fw_log", S_IRUGO, itf->debugfs_entry, + itf, &fimc_is_debugfs_fops); + if (!dentry) + fimc_is_debugfs_remove(itf); + + return itf->debugfs_entry == NULL ? -EIO : 0; +} + +int fimc_is_interface_init(struct fimc_is_interface *itf, + void __iomem *regs, int irq) +{ + struct fimc_is *is = fimc_interface_to_is(itf); + struct device *dev = &is->pdev->dev; + int ret; + + if (!regs || !irq) { + dev_err(itf->dev, "Invalid args\n"); + return -EINVAL; + } + + itf->regs = regs; + itf->com_regs = (struct is_common_reg *)(regs + ISSR(0)); + itf->dev = &is->pdev->dev; + + init_waitqueue_head(&itf->irq_queue); + spin_lock_init(&itf->slock_state); + spin_lock_init(&itf->slock); + + /* Register interrupt handler */ + ret = devm_request_irq(dev, irq, itf_irq_handler, + 0, dev_name(dev), itf); + if (ret) { + dev_err(dev, "Failed to install irq (%d)\n", ret); + return ret; + } + + /* Initialize context vars */ + itf->streaming = IS_IF_STREAMING_INIT; + itf->processing = IS_IF_PROCESSING_INIT; + itf->pdown_ready = IS_IF_POWER_DOWN_READY; + itf->debug_cnt = 0; + init_request_barrier(itf); + + /* Debugfs for FW debug log */ + fimc_is_debugfs_create(itf); + + return 0; +} diff --git a/drivers/media/platform/exynos5-is/fimc-is-interface.h b/drivers/media/platform/exynos5-is/fimc-is-interface.h new file mode 100644 index 0000000..44b641b --- /dev/null +++ b/drivers/media/platform/exynos5-is/fimc-is-interface.h @@ -0,0 +1,124 @@ +/* + * Samsung EXYNOS5 FIMC-IS (Imaging Subsystem) driver + * + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Arun Kumar K + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef FIMC_IS_INTERFACE_H_ +#define FIMC_IS_INTERFACE_H_ + +#include "fimc-is-core.h" + +#define TRY_RECV_AWARE_COUNT 100 + +#define ISDRV_VERSION 111 + +enum interrupt_map { + INTR_GENERAL = 0, + INTR_ISP_FDONE = 1, + INTR_SCC_FDONE = 2, + INTR_DNR_FDONE = 3, + INTR_SCP_FDONE = 4, + INTR_ISP_YUV_DONE = 5, + INTR_META_DONE = 6, + INTR_SHOT_DONE = 7, + INTR_MAX_MAP +}; + +enum fimc_is_interface_state { + IS_IF_STATE_INIT, + IS_IF_STATE_OPEN, + IS_IF_STATE_START, + IS_IF_STATE_BUSY +}; + +enum streaming_state { + IS_IF_STREAMING_INIT, + IS_IF_STREAMING_OFF, + IS_IF_STREAMING_ON +}; + +enum processing_state { + IS_IF_PROCESSING_INIT, + IS_IF_PROCESSING_OFF, + IS_IF_PROCESSING_ON +}; + +enum pdown_ready_state { + IS_IF_POWER_DOWN_READY, + IS_IF_POWER_DOWN_NREADY +}; + +struct fimc_is_msg { + u32 id; + u32 command; + u32 instance; + u32 param[4]; +}; + +struct fimc_is_interface { + unsigned long state; + + void __iomem *regs; + struct is_common_reg __iomem *com_regs; + /* Lock for writing into MCUCTL registers */ + spinlock_t slock; + /* Lock for context state variable */ + spinlock_t slock_state; + wait_queue_head_t irq_queue; + struct device *dev; + /* Held while sending commands to FW */ + struct mutex request_barrier; + + enum streaming_state streaming; + enum processing_state processing; + enum pdown_ready_state pdown_ready; + + struct fimc_is_msg reply; + + int debug_cnt; + struct dentry *debugfs_entry; + +}; + +int fimc_is_interface_init(struct fimc_is_interface *itf, + void __iomem *regs, int irq); +int fimc_is_itf_wait_init_state(struct fimc_is_interface *itf); +int fimc_is_itf_open_sensor(struct fimc_is_interface *itf, + unsigned int instance, + unsigned int sensor_id, + unsigned int i2c_channel, + unsigned int sensor_ext); +int fimc_is_itf_get_setfile_addr(struct fimc_is_interface *this, + unsigned int instance, unsigned int *setfile_addr); +int fimc_is_itf_load_setfile(struct fimc_is_interface *itf, + unsigned int instance); +int fimc_is_itf_stream_on(struct fimc_is_interface *itf, + unsigned int instance); +int fimc_is_itf_stream_off(struct fimc_is_interface *itf, + unsigned int instance); +int fimc_is_itf_process_on(struct fimc_is_interface *itf, + unsigned int instance); +int fimc_is_itf_process_off(struct fimc_is_interface *itf, + unsigned int instance); +int fimc_is_itf_set_param(struct fimc_is_interface *this, + unsigned int instance, + unsigned int lindex, + unsigned int hindex); +int fimc_is_itf_preview_still(struct fimc_is_interface *itf, + unsigned int instance); +int fimc_is_itf_get_capability(struct fimc_is_interface *itf, + unsigned int instance, unsigned int address); +int fimc_is_itf_cfg_mem(struct fimc_is_interface *itf, + unsigned int instance, unsigned int address, + unsigned int size); +int fimc_is_itf_shot_nblk(struct fimc_is_interface *itf, + unsigned int instance, unsigned int bayer, + unsigned int shot, unsigned int fcount, unsigned int rcount); +int fimc_is_itf_power_down(struct fimc_is_interface *itf, + unsigned int instance); +#endif