Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755601AbdLVEdq (ORCPT ); Thu, 21 Dec 2017 23:33:46 -0500 Received: from mail-qk0-f194.google.com ([209.85.220.194]:40824 "EHLO mail-qk0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753035AbdLVEdn (ORCPT ); Thu, 21 Dec 2017 23:33:43 -0500 X-Google-Smtp-Source: ACJfBosx90K908GswJxYRPuwN8euDkD4RZCPw1AHT3gTHXJlvmVDTT6rG/Uv+k7B10D7v6ZeOjXBR/2SaQxkbR90IXQ= MIME-Version: 1.0 In-Reply-To: <1513060095-29588-2-git-send-email-leo.wen@rock-chips.com> References: <1513060095-29588-1-git-send-email-leo.wen@rock-chips.com> <1513060095-29588-2-git-send-email-leo.wen@rock-chips.com> From: Jacob Chen Date: Fri, 22 Dec 2017 12:33:40 +0800 Message-ID: Subject: Re: [PATCH 1/2] [media] Add Rockchip RK1608 driver To: Leo Wen Cc: Mauro Carvalho Chehab , robh+dt@kernel.org, mark.rutland@arm.com, davem@davemloft.net, gregkh@linuxfoundation.org, rdunlap@infradead.org, Linux Media Mailing List , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, "open list:ARM/Rockchip SoC..." , Eddie Cai Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 56718 Lines: 1605 Hi leo, 2017-12-12 14:28 GMT+08:00 Leo Wen : > Rk1608 is used as a PreISP to link on Soc, which mainly has two functions. > One is to download the firmware of RK1608, and the other is to match the > extra sensor such as camera and enable sensor by calling sensor's s_power. > > use below v4l2-ctl command to capture frames. > > v4l2-ctl --verbose -d /dev/video1 --stream-mmap=2 > --stream-to=/tmp/stream.out --stream-count=60 --stream-poll > > use below command to playback the video on your PC. > > mplayer ./stream.out -loop 0 -demuxer rawvideo -rawvideo > w=640:h=480:size=$((640*480*3/2)):format=NV12 > > Signed-off-by: Leo Wen > --- > MAINTAINERS | 6 + > drivers/media/spi/Makefile | 1 + > drivers/media/spi/rk1608.c | 1165 ++++++++++++++++++++++++++++++++++++++++++++ > drivers/media/spi/rk1608.h | 366 ++++++++++++++ > 4 files changed, 1538 insertions(+) > create mode 100644 drivers/media/spi/rk1608.c > create mode 100644 drivers/media/spi/rk1608.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index 82ad0ea..48235d8 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -128,6 +128,12 @@ Maintainers List (try to look for most precise areas first) > > ----------------------------------- > > +ROCKCHIP RK1608 DRIVER > +M: Leo Wen > +S: Maintained > +F: drivers/media/platform/spi/rk1608.c > +F: drivers/media/platform/spi/rk1608.h > + > 3C59X NETWORK DRIVER > M: Steffen Klassert > L: netdev@vger.kernel.org > diff --git a/drivers/media/spi/Makefile b/drivers/media/spi/Makefile > index ea64013..9d9d9ec 100644 > --- a/drivers/media/spi/Makefile > +++ b/drivers/media/spi/Makefile > @@ -1 +1,2 @@ > obj-$(CONFIG_VIDEO_GS1662) += gs1662.o > +obj-$(CONFIG_ROCKCHIP_RK1608) += rk1608.o > diff --git a/drivers/media/spi/rk1608.c b/drivers/media/spi/rk1608.c > new file mode 100644 > index 0000000..e646204 > --- /dev/null > +++ b/drivers/media/spi/rk1608.c > @@ -0,0 +1,1165 @@ > +/** > + * Rockchip rk1608 driver > + * > + * Copyright (C) 2017 Rockchip Electronics Co., Ltd. > + * > + * This software is available to you under a choice of one of two > + * licenses. You may choose to be licensed under the terms of the GNU > + * General Public License (GPL) Version 2, available from the file > + * COPYING in the main directory of this source tree, or the > + * OpenIB.org BSD license below: > + * > + * Redistribution and use in source and binary forms, with or > + * without modification, are permitted provided that the following > + * conditions are met: > + * > + * - Redistributions of source code must retain the above > + * copyright notice, this list of conditions and the following > + * disclaimer. > + * > + * - Redistributions in binary form must reproduce the above > + * copyright notice, this list of conditions and the following > + * disclaimer in the documentation and/or other materials > + * provided with the distribution. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND > + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS > + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN > + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN > + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE > + * SOFTWARE. > + */ > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include "rk1608.h" > + > +/** > + * Rk1608 is used as the Pre-ISP to link on Soc, which mainly has two > + * functions. One is to download the firmware of RK1608, and the other > + * is to match the extra sensor such as camera and enable sensor by > + * calling sensor's s_power. > + * |-----------------------| > + * | Sensor Camera | > + * |-----------------------| > + * |-----------||----------| > + * |-----------||----------| > + * |-----------\/----------| > + * | Pre-ISP RK1608 | > + * |-----------------------| > + * |-----------||----------| > + * |-----------||----------| > + * |-----------\/----------| > + * | Rockchip Soc | > + * |-----------------------| > + * Data Transfer As shown above. In RK1608, the data received from the > + * extra sensor,and it is passed to the Soc through ISP. > + */ > +struct rk1608_state { > + struct v4l2_subdev sd; > + struct v4l2_subdev *sensor_sd; > + struct device *dev; > + struct spi_device *spi; > + struct media_pad pad; > + struct clk *mclk; > + struct mutex lock; /* protect resource */ > + struct mutex sensor_lock; /* protect sensor */ > + struct mutex send_msg_lock; /* protect msg */ > + int power_count; > + int reset_gpio; > + int reset_active; > + int irq_gpio; > + int irq; > + int sleepst_gpio; > + int sleepst_irq; > + int wakeup_gpio; > + int wakeup_active; > + int powerdown_gpio; > + int powerdown_active; > + int msg_num; > + u32 sensor_cnt; > + u32 sensor_nums; > + u32 max_speed_hz; > + u32 min_speed_hz; > + atomic_t msg_done[8]; > + wait_queue_head_t msg_wait; > + struct v4l2_ctrl *link_freq; > + struct v4l2_ctrl_handler ctrl_handler; > +}; > + > +static const s64 link_freq_menu_items[] = { > + 1000000000 > +}; > + > +static inline struct rk1608_state *to_state(struct v4l2_subdev *sd) > +{ > + return container_of(sd, struct rk1608_state, sd); > +} > + > +/** > + * rk1608_operation_query - RK1608 last operation state query > + * > + * @spi: device from which data will be read > + * @state: last operation state [out] > + * Context: can sleep > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_operation_query(struct spi_device *spi, s32 *state) > +{ > + s32 query_cmd = RK1608_CMD_QUERY; > + struct spi_transfer query_cmd_packet = { > + .tx_buf = &query_cmd, > + .len = sizeof(query_cmd), > + }; > + struct spi_transfer state_packet = { > + .rx_buf = state, > + .len = sizeof(*state), > + }; > + struct spi_message m; > + > + spi_message_init(&m); > + spi_message_add_tail(&query_cmd_packet, &m); > + spi_message_add_tail(&state_packet, &m); > + spi_sync(spi, &m); > + > + return ((*state & RK1608_STATE_ID_MASK) == RK1608_STATE_ID) ? 0 : -1; > +} > + > +int rk1608_write(struct spi_device *spi, > + s32 addr, const s32 *data, size_t data_len) > +{ > + s32 write_cmd = RK1608_CMD_WRITE; > + struct spi_transfer write_cmd_packet = { > + .tx_buf = &write_cmd, > + .len = sizeof(write_cmd), > + }; > + struct spi_transfer addr_packet = { > + .tx_buf = &addr, > + .len = sizeof(addr), > + }; > + struct spi_transfer data_packet = { > + .tx_buf = data, > + .len = data_len, > + }; > + struct spi_message m; > + > + spi_message_init(&m); > + spi_message_add_tail(&write_cmd_packet, &m); > + spi_message_add_tail(&addr_packet, &m); > + spi_message_add_tail(&data_packet, &m); > + return spi_sync(spi, &m); > +} > + > +/** > + * rk1608_safe_write - RK1608 synchronous write with state check > + * > + * @spi: spi device > + * @addr: resource address > + * @data: data buffer > + * @data_len: data buffer size, in bytes > + * Context: can sleep > + * > + * It returns zero on success, else operation state code. > + */ > +int rk1608_safe_write(struct spi_device *spi, > + s32 addr, const s32 *data, size_t data_len) > +{ > + int ret = 0; > + s32 state, retry = 0; > + > + while (data_len > 0) { > + size_t slen = MIN(data_len, RK1608_MAX_OP_BYTES); > + > + do { > + rk1608_write(spi, addr, data, data_len); > + if (rk1608_operation_query(spi, &state) != 0) > + return -1; > + if ((state & RK1608_STATE_MASK) == 0) > + break; > + > + udelay(RK1608_OP_TRY_DELAY); > + } while (retry++ != RK1608_OP_TRY_MAX); > + > + data_len = data_len - slen; > + data = (s32 *)((s8 *)data + slen); > + addr += slen; > + } > + return ret; > +} > + > +void rk1608_hw_init(struct spi_device *spi) > +{ > + s32 write_data = SPI0_PLL_SEL_APLL; > + > + /* modify rk1608 spi slave clk to 300M */ > + rk1608_safe_write(spi, CRUPMU_CLKSEL14_CON, &write_data, 4); > + > + /* modify rk1608 spi io driver strength to 8mA */ > + write_data = BIT7_6_SEL_8MA; > + rk1608_safe_write(spi, PMUGRF_GPIO1A_E, &write_data, 4); > + write_data = BIT1_0_SEL_8MA; > + rk1608_safe_write(spi, PMUGRF_GPIO1B_E, &write_data, 4); > +} > + > +/** > + * rk1608_read - RK1608 synchronous read > + * > + * @spi: spi device > + * @addr: resource address > + * @data: data buffer [out] > + * @data_len: data buffer size, in bytes > + * Context: can sleep > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_read(struct spi_device *spi, > + s32 addr, s32 *data, size_t data_len) > +{ > + s32 real_len = MIN(data_len, RK1608_MAX_OP_BYTES); > + s32 read_cmd = RK1608_CMD_READ | (real_len << 14 & > + RK1608_STATE_ID_MASK); > + s32 read_begin_cmd = RK1608_CMD_READ_BEGIN; > + s32 dummy = 0; > + struct spi_transfer read_cmd_packet = { > + .tx_buf = &read_cmd, > + .len = sizeof(read_cmd), > + }; > + struct spi_transfer addr_packet = { > + .tx_buf = &addr, > + .len = sizeof(addr), > + }; > + struct spi_transfer read_dummy_packet = { > + .tx_buf = &dummy, > + .len = sizeof(dummy), > + }; > + struct spi_transfer read_begin_cmd_packet = { > + .tx_buf = &read_begin_cmd, > + .len = sizeof(read_begin_cmd), > + }; > + struct spi_transfer data_packet = { > + .rx_buf = data, > + .len = data_len, > + }; > + struct spi_message m; > + > + spi_message_init(&m); > + spi_message_add_tail(&read_cmd_packet, &m); > + spi_message_add_tail(&addr_packet, &m); > + spi_message_add_tail(&read_dummy_packet, &m); > + spi_message_add_tail(&read_begin_cmd_packet, &m); > + spi_message_add_tail(&data_packet, &m); > + return spi_sync(spi, &m); > +} > + > +/** > + * rk1608_safe_read - RK1608 synchronous read with state check > + * > + * @spi: spi device > + * @addr: resource address > + * @data: data buffer [out] > + * @data_len: data buffer size, in bytes > + * Context: can sleep > + * > + * It returns zero on success, else operation state code. > + */ > +int rk1608_safe_read(struct spi_device *spi, > + s32 addr, s32 *data, size_t data_len) > +{ > + s32 state = 0; > + s32 retry = 0; > + > + do { > + rk1608_read(spi, addr, data, data_len); > + if (rk1608_operation_query(spi, &state) != 0) > + return -1; > + if ((state & RK1608_STATE_MASK) == 0) > + break; > + udelay(RK1608_OP_TRY_DELAY); > + } while (retry++ != RK1608_OP_TRY_MAX); > + > + return (state & RK1608_STATE_MASK); > +} > + > +static int rk1608_read_wait(struct spi_device *spi, > + const struct rk1608_section *sec) > +{ > + s32 value = 0; > + int retry = 0; > + int ret = 0; > + > + do { > + ret = rk1608_safe_read(spi, sec->wait_addr, &value, 4); > + if (!ret && value == sec->wait_value) > + break; > + > + if (retry++ == sec->timeout) { > + ret = -1; > + dev_err(&spi->dev, "read 0x%x is %x != %x timeout\n", > + sec->wait_addr, value, sec->wait_value); > + break; > + } > + mdelay(sec->wait_time); > + } while (1); > + > + return ret; > +} > + > +static int rk1608_boot_request(struct spi_device *spi, > + const struct rk1608_section *sec) > +{ > + struct rk1608_boot_req boot_req; > + int retry = 0; > + int ret = 0; > + > + /*send boot request to rk1608 for ddr init*/ > + boot_req.flag = sec->flag; > + boot_req.load_addr = sec->load_addr; > + boot_req.boot_len = sec->size; > + boot_req.status = 1; > + boot_req.cmd = 2; > + > + ret = rk1608_safe_write(spi, BOOT_REQUEST_ADDR, > + (s32 *)&boot_req, sizeof(boot_req)); > + if (ret) > + return ret; > + > + if (sec->flag & BOOT_FLAG_READ_WAIT) { > + /*waitting for rk1608 init ddr done*/ > + do { > + ret = rk1608_safe_read(spi, BOOT_REQUEST_ADDR, > + (s32 *)&boot_req, > + sizeof(boot_req)); > + > + if (!ret && boot_req.status == 0) > + break; > + > + if (retry++ == sec->timeout) { > + ret = -1; > + dev_err(&spi->dev, "boot_request timeout\n"); > + break; > + } > + mdelay(sec->wait_time); > + } while (1); > + } > + > + return ret; > +} > + > +static int rk1608_download_section(struct spi_device *spi, const u8 *data, > + const struct rk1608_section *sec) > +{ > + int ret = 0; > + > + dev_info(&spi->dev, "offset:%x,size:%x,addr:%x,wait_time:%x", > + sec->offset, sec->size, sec->load_addr, sec->wait_time); > + dev_info(&spi->dev, "timeout:%x,crc:%x,flag:%x,type:%x", > + sec->timeout, sec->crc_16, sec->flag, sec->type); > + > + if (sec->size > 0) { > + ret = rk1608_safe_write(spi, sec->load_addr, > + (s32 *)(data + sec->offset), > + sec->size); > + if (ret) { > + dev_err(&spi->dev, "rk1608_safe_write err =%d\n", ret); > + return ret; > + } > + } > + > + if (sec->flag & BOOT_FLAG_BOOT_REQUEST) > + ret = rk1608_boot_request(spi, sec); > + else if (sec->flag & BOOT_FLAG_READ_WAIT) > + ret = rk1608_read_wait(spi, sec); > + > + return ret; > +} > + > +/** > + * rk1608_download_fw: - rk1608 firmware download through spi > + * > + * @spi: spi device > + * @fw_name: name of firmware file, NULL for default firmware name > + * Context: can sleep > + * > + * It returns zero on success, else a negative error code. > + **/ > +int rk1608_download_fw(struct spi_device *spi, const char *fw_name) > +{ > + const struct rk1608_header *head; > + const struct firmware *fw; > + int i = 0; > + int ret = 0; > + > + if (!fw_name) > + fw_name = RK1608_FW_NAME; > + > + dev_info(&spi->dev, "before request firmware"); > + ret = request_firmware(&fw, fw_name, &spi->dev); > + if (ret) { > + dev_err(&spi->dev, "request firmware %s failed!", fw_name); > + return ret; > + } > + > + head = (const struct rk1608_header *)fw->data; > + > + dev_info(&spi->dev, "request firmware %s (version:%s) success!", > + fw_name, head->version); > + > + for (i = 0; i < head->section_count; i++) { > + ret = rk1608_download_section(spi, fw->data, > + &head->sections[i]); > + if (ret) > + break; > + } > + > + release_firmware(fw); > + return ret; > +} > + > +int rk1608_lsb_w32(struct spi_device *spi, s32 addr, s32 data) > +{ > + s32 write_cmd = RK1608_CMD_WRITE; > + struct spi_transfer write_cmd_packet = { > + .tx_buf = &write_cmd, > + .len = sizeof(write_cmd), > + }; > + struct spi_transfer addr_packet = { > + .tx_buf = &addr, > + .len = sizeof(addr), > + }; > + struct spi_transfer data_packet = { > + .tx_buf = &data, > + .len = sizeof(data), > + }; > + struct spi_message m; > + > + write_cmd = MSB2LSB32(write_cmd); > + addr = MSB2LSB32(addr); > + data = MSB2LSB32(data); > + spi_message_init(&m); > + spi_message_add_tail(&write_cmd_packet, &m); > + spi_message_add_tail(&addr_packet, &m); > + spi_message_add_tail(&data_packet, &m); > + return spi_sync(spi, &m); > +} > + > +void rk1608_cs_set_value(struct rk1608_state *pdata, int value) > +{ > + s8 null_cmd = 0; > + struct spi_transfer null_cmd_packet = { > + .tx_buf = &null_cmd, > + .len = sizeof(null_cmd), > + .cs_change = !value, > + }; > + struct spi_message m; > + > + spi_message_init(&m); > + spi_message_add_tail(&null_cmd_packet, &m); > + spi_sync(pdata->spi, &m); > +} > + > +void rk1608_set_spi_speed(struct rk1608_state *pdata, u32 hz) > +{ > + pdata->spi->max_speed_hz = hz; > +} > + > +static int rk1608_sensor_power(struct v4l2_subdev *sd, int on) > +{ > + int ret = 0; > + struct rk1608_state *pdata = to_state(sd); > + struct spi_device *spi = pdata->spi; > + > + mutex_lock(&pdata->lock); > + /*start Sensor power on/off*/ > + if (pdata->sensor_sd) > + pdata->sensor_sd->ops->core->s_power(pdata->sensor_sd, on); > + if (on && !pdata->power_count) { > + clk_prepare_enable(pdata->mclk); > + clk_set_rate(pdata->mclk, RK1608_MCLK_RATE); > + /*request rk1608 enter slave mode*/ > + rk1608_cs_set_value(pdata, 0); > + if (pdata->powerdown_gpio > 0) { > + gpio_set_value(pdata->powerdown_gpio, > + pdata->powerdown_active); > + } > + if (pdata->wakeup_gpio > 0) { > + gpio_set_value(pdata->wakeup_gpio, > + pdata->wakeup_active); > + } > + mdelay(3); > + if (pdata->reset_gpio > 0) > + gpio_set_value(pdata->reset_gpio, pdata->reset_active); > + mdelay(5); > + rk1608_cs_set_value(pdata, 1); > + rk1608_set_spi_speed(pdata, pdata->min_speed_hz); > + rk1608_lsb_w32(spi, SPI_ENR, 0); > + rk1608_lsb_w32(spi, SPI_CTRL0, > + OPM_SLAVE_MODE | RSD_SEL_2CYC | DFS_SEL_16BIT); > + rk1608_hw_init(pdata->spi); > + rk1608_set_spi_speed(pdata, pdata->max_speed_hz); > + /*download system firmware*/ > + ret = rk1608_download_fw(pdata->spi, NULL); > + if (ret) > + dev_err(pdata->dev, "Download firmware failed!"); > + else > + dev_info(pdata->dev, "Download firmware success!"); > + enable_irq(pdata->irq); > + if (pdata->sleepst_irq > 0) > + enable_irq(pdata->sleepst_irq); > + > + } else if (!on && pdata->power_count == 1) { > + disable_irq(pdata->irq); > + if (pdata->sleepst_irq > 0) > + disable_irq(pdata->sleepst_irq); > + if (pdata->powerdown_gpio > 0) > + gpio_set_value(pdata->powerdown_gpio, > + !pdata->powerdown_active); > + > + if (pdata->wakeup_gpio > 0) > + gpio_set_value(pdata->wakeup_gpio, > + !pdata->wakeup_active); > + > + if (pdata->reset_gpio > 0) > + gpio_set_value(pdata->reset_gpio, !pdata->reset_active); > + > + rk1608_cs_set_value(pdata, 0); > + clk_disable_unprepare(pdata->mclk); > + } > + /* Update the power count. */ > + pdata->power_count += on ? 1 : -1; > + WARN_ON(pdata->power_count < 0); > + mutex_unlock(&pdata->lock); > + > + return ret; > +} > + > +static int rk1608_stream_on(struct rk1608_state *pdata) > +{ > + int cnt = 0; > + > + /*Waiting for the sensor to be ready*/ > + while (pdata->sensor_cnt < pdata->sensor_nums) { > + /* TIMEOUT 10s break*/ > + if (cnt++ > SENSOR_TIMEOUT) { > + dev_err(pdata->dev, "Sensor%d is ready to timeout!", > + pdata->sensor_cnt); > + break; > + } > + mdelay(10); > + } > + > + if (pdata->sensor_nums) { > + if (pdata->sensor_cnt == pdata->sensor_nums) > + dev_info(pdata->dev, "Sensor(num %d) is ready!", > + pdata->sensor_cnt); > + } else { > + dev_warn(pdata->dev, "No sensor is found!"); > + } > + > + return 0; > +} > + > +static int rk1608_stream_off(struct rk1608_state *pdata) > +{ > + mutex_lock(&pdata->sensor_lock); > + pdata->sensor_cnt = 0; > + mutex_unlock(&pdata->sensor_lock); > + return 0; > +} > + > +static int rk1608_s_stream(struct v4l2_subdev *sd, int enable) > +{ > + struct rk1608_state *pdata = to_state(sd); > + > + if (enable) > + return rk1608_stream_on(pdata); > + else > + return rk1608_stream_off(pdata); > +} > + > +static int rk1608_enum_mbus_code(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_mbus_code_enum *code) > +{ > + if (code->index > 0) > + return -EINVAL; > + > + code->code = MEDIA_BUS_FMT_SGRBG8_1X8; > + > + return 0; > +} > + > +static int rk1608_get_fmt(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct v4l2_mbus_framefmt *mf = &fmt->format; > + > + mf->code = MEDIA_BUS_FMT_SGRBG8_1X8; > + mf->width = RK1608_WINDOW_WIDTH_DEF; > + mf->height = RK1608_WINDOW_HEIGHT_DEF; > + mf->field = V4L2_FIELD_NONE; > + mf->colorspace = V4L2_COLORSPACE_SRGB; > + > + return 0; > +} > + > +static const struct v4l2_subdev_internal_ops rk1608_subdev_internal_ops = { > + .open = NULL, > +}; > + > +static const struct v4l2_subdev_video_ops rk1608_subdev_video_ops = { > + .s_stream = rk1608_s_stream, > +}; > + > +static const struct v4l2_subdev_pad_ops rk1608_subdev_pad_ops = { > + .enum_mbus_code = rk1608_enum_mbus_code, > + .get_fmt = rk1608_get_fmt, > +}; > + > +static const struct v4l2_subdev_core_ops rk1608_core_ops = { > + .s_power = rk1608_sensor_power, > +}; > + > +static const struct v4l2_subdev_ops rk1608_subdev_ops = { > + .core = &rk1608_core_ops, > + .video = &rk1608_subdev_video_ops, > + .pad = &rk1608_subdev_pad_ops, > +}; > + > +/** > + * rk1608_msq_read_head - read rk1608 msg queue head > + * > + * @spi: spi device > + * @addr: msg queue head addr > + * @m: msg queue pointer > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_msq_read_head(struct spi_device *spi, > + u32 addr, struct rk1608_msg_queue *q) > +{ > + int err = 0; > + s32 reg; > + > + err = rk1608_safe_read(spi, RK1608_PMU_SYS_REG0, ®, 4); > + > + if (err || ((reg & RK1608_MSG_QUEUE_OK_MASK) != > + RK1608_MSG_QUEUE_OK_TAG)) > + return -1; > + > + err = rk1608_safe_read(spi, addr, (s32 *)q, sizeof(*q)); > + > + return err; > +} > + > +/** > + * rk1608_msq_recv_msg - receive a msg from RK1608 -> AP msg queue > + * > + * @q: msg queue > + * @m: a msg pointer buf [out] > + * > + * need call rk1608_msq_recv_msg_free to free msg after msg use done > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_msq_recv_msg(struct spi_device *spi, struct msg **m) > +{ > + struct rk1608_msg_queue queue; > + struct rk1608_msg_queue *q = &queue; > + u32 size = 0, msg_size = 0; > + u32 recv_addr = 0; > + u32 next_recv_addr = 0; > + int err = 0; > + > + *m = NULL; > + err = rk1608_msq_read_head(spi, RK1608_S_MSG_QUEUE_ADDR, q); > + if (err) > + return err; > + > + if (q->cur_send == q->cur_recv) > + return -1; > + /*skip to head when size is 0*/ > + err = rk1608_safe_read(spi, (s32)q->cur_recv, (s32 *)&size, 4); > + if (err) > + return err; > + if (size == 0) { > + err = rk1608_safe_read(spi, (s32)q->buf_head, (s32 *)&size, 4); > + if (err) > + return err; > + > + msg_size = size * sizeof(u32); > + recv_addr = q->buf_head; > + next_recv_addr = q->buf_head + msg_size; > + } else { > + msg_size = size * sizeof(u32); > + recv_addr = q->cur_recv; > + next_recv_addr = q->cur_recv + msg_size; > + if (next_recv_addr == q->buf_tail) > + next_recv_addr = q->buf_head; > + } > + > + if (msg_size > (q->buf_tail - q->buf_head)) > + return -2; > + > + *m = kmalloc(msg_size, GFP_KERNEL); > + err = rk1608_safe_read(spi, recv_addr, (s32 *)*m, msg_size); > + if (err == 0) { > + err = rk1608_safe_write(spi, RK1608_S_MSG_QUEUE_ADDR + > + (u8 *)&q->cur_recv - (u8 *)q, > + &next_recv_addr, 4); > + } > + if (err) > + kfree(*m); > + > + return err; > +} > + > +static void print_rk1608_log(struct rk1608_state *pdata, > + struct msg_rk1608_log_t *log) > +{ > + char *str = (char *)(log); > + > + str[log->size * sizeof(s32) - 1] = 0; > + str += sizeof(struct msg_rk1608_log_t); > + dev_info(pdata->dev, "RK1608%d: %s", log->core_id, str); > +} > + > +void int32_hexdump(const char *prefix, int32_t *data, int len) > +{ > + pr_err("%s\n", prefix); > + print_hex_dump(KERN_ERR, "offset ", DUMP_PREFIX_OFFSET, > + 16, 4, data, len, false); > + pr_err("\n"); > +} > + > +static void dispatch_received_msg(struct rk1608_state *pdata, > + struct msg *msg) > +{ > + #if DEBUG_DUMP_ALL_SEND_RECV_MSG == 1 > + int32_hexdump("recv msg:", (s32 *)msg, msg->size * 4); > + #endif > + > + if (msg->type == id_msg_set_stream_out_on_ret_t) { > + mutex_lock(&pdata->sensor_lock); > + pdata->sensor_cnt++; > + mutex_unlock(&pdata->sensor_lock); > + } > + > + if (msg->type == id_msg_rk1608_log_t) > + print_rk1608_log(pdata, (struct msg_rk1608_log_t *)msg); > +} > + > +static irqreturn_t rk1608_threaded_isr(int irq, void *dev_id) > +{ > + struct rk1608_state *pdata = dev_id; > + struct msg *msg; > + > + WARN_ON(irq != pdata->irq); > + while (!rk1608_msq_recv_msg(pdata->spi, &msg) && NULL != msg) { > + dispatch_received_msg(pdata, msg); > + /* for kernel msg sync */ > + if (pdata->msg_num != 0 && msg->sync) { > + dev_info(pdata->dev, "rk1608 kernel sync\n"); > + mutex_lock(&pdata->send_msg_lock); > + pdata->msg_num--; > + atomic_set(&pdata->msg_done[pdata->msg_num], 1); > + mutex_unlock(&pdata->send_msg_lock); > + wake_up(&pdata->msg_wait); > + } > + kfree(msg); > + } > + > + return IRQ_HANDLED; > +} > + > +static irqreturn_t rk1608_sleep_isr(int irq, void *dev_id) > +{ > + struct rk1608_state *pdata = dev_id; > + > + WARN_ON(irq != pdata->sleepst_irq); > + if (pdata->powerdown_gpio > 0) > + gpio_set_value(pdata->powerdown_gpio, !pdata->powerdown_active); > + > + return IRQ_HANDLED; > +} > + > +static int rk1608_parse_dt_property(struct rk1608_state *pdata) > +{ > + int ret = 0; > + int i; > + struct device *dev = pdata->dev; > + struct device_node *node = dev->of_node; > + enum of_gpio_flags flags; > + > + if (!node) > + return 1; > + > + ret = of_property_read_u32(node, "spi-max-frequency", > + &pdata->max_speed_hz); > + if (ret <= 0) { > + dev_warn(dev, "can not get spi-max-frequency!"); > + pdata->max_speed_hz = RK1608_MCLK_RATE; > + } > + > + ret = of_property_read_u32(node, "spi-min-frequency", > + &pdata->min_speed_hz); > + if (ret <= 0) { > + dev_warn(dev, "can not get spi-min-frequency!"); > + pdata->min_speed_hz = pdata->max_speed_hz / 2; > + } > + > + pdata->mclk = devm_clk_get(dev, "mclk"); > + if (IS_ERR(pdata->mclk)) { > + dev_err(dev, "can not get mclk, error %ld\n", > + PTR_ERR(pdata->mclk)); > + pdata->mclk = NULL; > + return -1; > + } > + > + ret = of_get_named_gpio_flags(node, "reset-gpio", 0, &flags); > + if (ret <= 0) { > + dev_warn(dev, "can not find reset-gpio, error %d\n", ret); > + return ret; > + } > + pdata->reset_gpio = ret; > + pdata->reset_active = 1; > + if (flags == OF_GPIO_ACTIVE_LOW) > + pdata->reset_active = 0; > + > + if (pdata->reset_gpio > 0) { > + ret = devm_gpio_request(dev, pdata->reset_gpio, "rk1608-reset"); > + if (ret) { > + dev_err(dev, "gpio %d request error %d\n", > + pdata->reset_gpio, ret); > + return ret; > + } > + > + ret = gpio_direction_output(pdata->reset_gpio, > + !pdata->reset_active); > + if (ret) { > + dev_err(dev, "gpio %d direction output error %d\n", > + pdata->reset_gpio, ret); > + return ret; > + } > + } > + > + ret = of_get_named_gpio_flags(node, "irq-gpio", 0, NULL); > + if (ret <= 0) { > + dev_warn(dev, "can not find irq-gpio, error %d\n", ret); > + return ret; > + } > + > + pdata->irq_gpio = ret; > + > + ret = devm_gpio_request(dev, pdata->irq_gpio, "rk1608-irq"); > + if (ret) { > + dev_err(dev, "gpio %d request error %d\n", pdata->irq_gpio, > + ret); > + return ret; > + } > + > + ret = gpio_direction_input(pdata->irq_gpio); > + if (ret) { > + dev_err(dev, "gpio %d direction input error %d\n", > + pdata->irq_gpio, ret); > + return ret; > + } > + > + ret = gpio_to_irq(pdata->irq_gpio); > + if (ret < 0) { > + dev_err(dev, "Unable to get irq number for GPIO %d, error %d\n", > + pdata->irq_gpio, ret); > + return ret; > + } > + pdata->irq = ret; > + ret = request_threaded_irq(pdata->irq, NULL, rk1608_threaded_isr, > + IRQF_TRIGGER_RISING | IRQF_ONESHOT, > + "rk1608-irq", pdata); > + if (ret) { > + dev_err(dev, "cannot request thread irq: %d\n", ret); > + return ret; > + } > + > + disable_irq(pdata->irq); > + > + ret = of_get_named_gpio_flags(node, "powerdown-gpio", 0, &flags); > + if (ret <= 0) > + dev_warn(dev, "can not find powerdown-gpio, error %d\n", ret); > + > + pdata->powerdown_gpio = ret; > + pdata->powerdown_active = 1; > + if (flags == OF_GPIO_ACTIVE_LOW) > + pdata->powerdown_active = 0; > + > + if (pdata->powerdown_gpio > 0) { > + ret = devm_gpio_request(dev, pdata->powerdown_gpio, > + "rk1608-powerdown"); > + if (ret) { > + dev_err(dev, "gpio %d request error %d\n", > + pdata->powerdown_gpio, ret); > + return ret; > + } > + > + ret = gpio_direction_output(pdata->powerdown_gpio, > + !pdata->powerdown_active); > + if (ret) { > + dev_err(dev, "gpio %d direction output error %d\n", > + pdata->powerdown_gpio, ret); > + return ret; > + } > + } > + > + pdata->sleepst_gpio = -1; > + pdata->sleepst_irq = -1; > + pdata->wakeup_gpio = -1; > + > + ret = of_get_named_gpio_flags(node, "sleepst-gpio", 0, NULL); > + if (ret <= 0) { > + dev_warn(dev, "can not find property sleepst-gpio, error %d\n", > + ret); > + return ret; > + } > + > + pdata->sleepst_gpio = ret; > + > + ret = devm_gpio_request(dev, pdata->sleepst_gpio, "rk1608-sleep-irq"); > + if (ret) { > + dev_err(dev, "gpio %d request error %d\n", > + pdata->sleepst_gpio, ret); > + return ret; > + } > + > + ret = gpio_direction_input(pdata->sleepst_gpio); > + if (ret) { > + dev_err(dev, "gpio %d direction input error %d\n", > + pdata->sleepst_gpio, ret); > + return ret; > + } > + > + ret = gpio_to_irq(pdata->sleepst_gpio); > + if (ret < 0) { > + dev_err(dev, "Unable to get irq number for GPIO %d, error %d\n", > + pdata->sleepst_gpio, ret); > + return ret; > + } > + pdata->sleepst_irq = ret; > + ret = request_any_context_irq(pdata->sleepst_irq, > + rk1608_sleep_isr, > + IRQF_TRIGGER_RISING, > + "rk1608-sleepst", pdata); > + disable_irq(pdata->sleepst_irq); > + > + ret = of_get_named_gpio_flags(node, "wakeup-gpio", 0, &flags); > + if (ret <= 0) > + dev_warn(dev, "can not find wakeup-gpio error %d\n", ret); > + > + pdata->wakeup_gpio = ret; > + pdata->wakeup_active = 1; > + if (flags == OF_GPIO_ACTIVE_LOW) > + pdata->wakeup_active = 0; > + > + if (pdata->wakeup_gpio > 0) { > + ret = devm_gpio_request(dev, pdata->wakeup_gpio, > + "rk1608-wakeup"); > + if (ret) { > + dev_err(dev, "gpio %d request error %d\n", > + pdata->wakeup_gpio, ret); > + return ret; > + } > + > + ret = gpio_direction_output(pdata->wakeup_gpio, > + !pdata->wakeup_active); > + if (ret) { > + dev_err(dev, "gpio %d direction output error %d\n", > + pdata->wakeup_gpio, ret); > + return ret; > + } > + } > + pdata->msg_num = 0; > + init_waitqueue_head(&pdata->msg_wait); > + for (i = 0; i < 8; i++) > + atomic_set(&pdata->msg_done[i], 0); > + > + return ret; > +} > + > +static int get_remote_node_dev(struct rk1608_state *pdev) > +{ > + struct platform_device *sensor_pdev = NULL; > + struct device *dev = pdev->dev; > + struct device_node *parent = dev->of_node; > + struct device_node *node, *pre_node = NULL; > + struct device_node *remote = NULL; > + int ret, sensor_nums = 0; > + > + node = of_graph_get_next_endpoint(parent, pre_node); > + if (node) { > + of_node_put(pre_node); > + pre_node = node; > + } else { > + dev_err(dev, "fieled to get endpoint\n"); > + return -EINVAL; > + } > + while ((node = of_graph_get_next_endpoint(parent, pre_node)) != NULL) { > + of_node_put(pre_node); > + pre_node = node; > + remote = of_graph_get_remote_port_parent(node); > + if (!remote) { > + dev_err(dev, "%s: no valid device\n", __func__); > + of_node_put(remote); > + ret = -EINVAL; > + } > + > + sensor_pdev = of_find_device_by_node(remote); > + of_node_put(remote); > + > + if (!sensor_pdev) { > + dev_err(dev, "fieled to get Sensor device\n"); > + ret = -EINVAL; > + } else { > + pdev->sensor_sd = platform_get_drvdata(sensor_pdev); > + if (pdev->sensor_sd) > + sensor_nums++; > + else > + dev_err(dev, "fieled to get Sensor drvdata\n"); > + ret = 0; > + } > + } > + pdev->sensor_nums = sensor_nums; > + if (pdev->sensor_nums) > + dev_info(dev, "get Sensor (nums=%d) dev is OK!\n", > + pdev->sensor_nums); > + > + return ret; > +} > + > +static int rk1608_probe(struct spi_device *spi) > +{ > + struct rk1608_state *rk1608; > + struct v4l2_subdev *sd; > + struct v4l2_ctrl_handler *handler; > + int ret; > + > + rk1608 = devm_kzalloc(&spi->dev, sizeof(*rk1608), GFP_KERNEL); > + if (!rk1608) > + return -ENOMEM; > + rk1608->dev = &spi->dev; > + rk1608->spi = spi; > + spi_set_drvdata(spi, rk1608); > + ret = rk1608_parse_dt_property(rk1608); > + if (ret) { > + dev_err(rk1608->dev, "rk1608 parse dt property err(%x)\n", ret); > + goto parse_err; > + } > + ret = get_remote_node_dev(rk1608); > + if (ret) > + dev_warn(rk1608->dev, "get remote node dev err(%x)\n", ret); > + rk1608->sensor_cnt = 0; > + mutex_init(&rk1608->sensor_lock); > + mutex_init(&rk1608->send_msg_lock); > + mutex_init(&rk1608->lock); > + sd = &rk1608->sd; > + v4l2_spi_subdev_init(sd, spi, &rk1608_subdev_ops); > + > + handler = &rk1608->ctrl_handler; > + ret = v4l2_ctrl_handler_init(handler, 1); > + if (ret) > + goto handler_init_err; > + > + rk1608->link_freq = v4l2_ctrl_new_int_menu(handler, NULL, > + V4L2_CID_LINK_FREQ, > + 0, 0, link_freq_menu_items); > + if (rk1608->link_freq) > + rk1608->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + if (handler->error) > + goto handler_err; > + > + sd->ctrl_handler = handler; > + sd->internal_ops = &rk1608_subdev_internal_ops; > + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; > + > + rk1608->pad.flags = MEDIA_PAD_FL_SOURCE; > + sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; > + > + ret = media_entity_init(&sd->entity, 1, &rk1608->pad, 0); > + if (ret < 0) > + goto handler_err; > + > + ret = v4l2_async_register_subdev(sd); > + if (ret < 0) > + goto register_err; > + dev_info(rk1608->dev, "DSP rk1608 Driver probe is OK!\n"); > + > + return 0; > +register_err: > + media_entity_cleanup(&sd->entity); > +handler_err: > + v4l2_ctrl_handler_free(handler); > +handler_init_err: > + v4l2_device_unregister_subdev(&rk1608->sd); > + mutex_destroy(&rk1608->lock); > + mutex_destroy(&rk1608->send_msg_lock); > + mutex_destroy(&rk1608->sensor_lock); > +parse_err: > + kfree(rk1608); > + return ret; > +} > + > +static int rk1608_remove(struct spi_device *spi) > +{ > + struct rk1608_state *rk1608 = spi_get_drvdata(spi); > + > + v4l2_async_unregister_subdev(&rk1608->sd); > + media_entity_cleanup(&rk1608->sd.entity); > + v4l2_ctrl_handler_free(&rk1608->ctrl_handler); > + v4l2_device_unregister_subdev(&rk1608->sd); > + mutex_destroy(&rk1608->lock); > + mutex_destroy(&rk1608->send_msg_lock); > + mutex_destroy(&rk1608->sensor_lock); > + kfree(rk1608); > + > + return 0; > +} > + > +static const struct spi_device_id rk1608_id[] = { > + { "RK1608", 0 }, > + { } > +}; > +MODULE_DEVICE_TABLE(spi, rk1608_id); > + > +#if IS_ENABLED(CONFIG_OF) > +static const struct of_device_id rk1608_of_match[] = { > + { .compatible = "rockchip,rk1608" }, > + { /* sentinel */ }, > +}; > +MODULE_DEVICE_TABLE(of, rk1608_of_match); > +#endif > + > +static struct spi_driver rk1608_driver = { > + .driver = { > + .of_match_table = of_match_ptr(rk1608_of_match), > + .name = "RK1608", > + }, > + .probe = rk1608_probe, > + .remove = rk1608_remove, > + .id_table = rk1608_id, > +}; > + > +module_spi_driver(rk1608_driver); > + > +MODULE_AUTHOR("Rockchip Camera/ISP team"); > +MODULE_DESCRIPTION("A DSP driver for rk1608 chip"); > +MODULE_LICENSE("Dual BSD/GPL"); > diff --git a/drivers/media/spi/rk1608.h b/drivers/media/spi/rk1608.h > new file mode 100644 > index 0000000..bf0c5ec > --- /dev/null > +++ b/drivers/media/spi/rk1608.h > @@ -0,0 +1,366 @@ > +/** > + * Rockchip rk1608 driver > + * > + * Copyright (C) 2017 Rockchip Electronics Co., Ltd. > + * > + * This software is available to you under a choice of one of two > + * licenses. You may choose to be licensed under the terms of the GNU > + * General Public License (GPL) Version 2, available from the file > + * COPYING in the main directory of this source tree, or the > + * OpenIB.org BSD license below: > + * > + * Redistribution and use in source and binary forms, with or > + * without modification, are permitted provided that the following > + * conditions are met: > + * > + * - Redistributions of source code must retain the above > + * copyright notice, this list of conditions and the following > + * disclaimer. > + * > + * - Redistributions in binary form must reproduce the above > + * copyright notice, this list of conditions and the following > + * disclaimer in the documentation and/or other materials > + * provided with the distribution. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND > + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS > + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN > + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN > + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE > + * SOFTWARE. > + */ > +#ifndef __RK1608_H__ > +#define __RK1608_H__ > + > +#include > +#include > +#include > +#include "linux/i2c.h" > + > +#define RK1608_OP_TRY_MAX 3 > +#define RK1608_OP_TRY_DELAY 10 > +#define RK1608_CMD_WRITE 0x00000011 > +#define RK1608_CMD_WRITE_REG0 0X00010011 > +#define RK1608_CMD_WRITE_REG1 0X00020011 > +#define RK1608_CMD_READ 0x00000077 > +#define RK1608_CMD_READ_BEGIN 0x000000aa > +#define RK1608_CMD_QUERY 0x000000ff > +#define RK1608_CMD_QUERY_REG2 0x000001ff > +#define RK1608_STATE_ID_MASK (0xffff0000) > +#define RK1608_STATE_ID (0X16080000) > +#define RK1608_STATE_MASK (0x0000ffff) > + > +#define BOOT_REQUEST_ADDR 0x18000010 > +#define RK1608_HEAD_ADDR 0x60000000 > +#define RK1608_FW_NAME "rk1608.rkl" > +#define RK1608_S_MSG_QUEUE_ADDR 0x60050010 > +#define RK1608_PMU_SYS_REG0 0x120000f0 > +#define RK1608_MSG_QUEUE_OK_MASK 0xffff0001 > +#define RK1608_MSG_QUEUE_OK_TAG 0x16080001 > +#define RK1608_MAX_OP_BYTES 60000 > + > +#define RK1608_WINDOW_HEIGHT_DEF 480 > +#define RK1608_WINDOW_WIDTH_DEF 640 > + > +#define BOOT_FLAG_CRC (0x01 << 0) > +#define BOOT_FLAG_EXE (0x01 << 1) > +#define BOOT_FLAG_LOAD_PMEM (0x01 << 2) > +#define BOOT_FLAG_ACK (0x01 << 3) > +#define BOOT_FLAG_READ_WAIT (0x01 << 4) > +#define BOOT_FLAG_BOOT_REQUEST (0x01 << 5) > + > +#define DEBUG_DUMP_ALL_SEND_RECV_MSG 0 > +#define RK1608_MCLK_RATE (24 * 1000 * 1000ul) > +#define SENSOR_TIMEOUT 1000 > +#define GRF_BASE_ADDR 0xff770000 > +#define GRF_GPIO2B_IOMUX 0x0014 > +#define GRF_IO_VSEL 0x0380 > +#define OPM_SLAVE_MODE 0X100000 > +#define RSD_SEL_2CYC 0X008000 > +#define DFS_SEL_16BIT 0X000002 > +#define SPI_CTRL0 0x11060000 > +#define SPI_ENR 0x11060008 > +#define CRUPMU_CLKSEL14_CON 0x12008098 > +#define PMUGRF_GPIO1A_E 0x12030040 > +#define PMUGRF_GPIO1B_E 0x12030044 > +#define BIT7_6_SEL_8MA 0xf000a000 > +#define BIT1_0_SEL_8MA 0x000f000a > +#define SPI0_PLL_SEL_APLL 0xff004000 > +#define INVALID_ID -1 > +#define RK1608_MAX_SEC_NUM 10 > + > +#ifndef MIN > +#define MIN(a, b) ((a) < (b) ? (a) : (b)) > +#endif > + > +#ifndef MSB2LSB32 > +#define MSB2LSB32(x) ((((u32)x & 0x80808080) >> 7) | \ > + (((u32)x & 0x40404040) >> 5) | \ > + (((u32)x & 0x20202020) >> 3) | \ > + (((u32)x & 0x10101010) >> 1) | \ > + (((u32)x & 0x08080808) << 1) | \ > + (((u32)x & 0x04040404) << 3) | \ > + (((u32)x & 0x02020202) << 5) | \ > + (((u32)x & 0x01010101) << 7)) > +#endif > + > +struct rk1608_section { > + union { > + u32 offset; > + u32 wait_value; > + }; > + u32 size; > + union { > + u32 load_addr; > + u32 wait_addr; > + }; > + u16 wait_time; > + u16 timeout; > + u16 crc_16; > + u8 flag; > + u8 type; > +}; > + > +struct rk1608_header { > + char version[32]; > + u32 header_size; > + u32 section_count; > + struct rk1608_section sections[RK1608_MAX_SEC_NUM]; > +}; > + > +struct rk1608_boot_req { > + u32 flag; > + u32 load_addr; > + u32 boot_len; > + u8 status; > + u8 dummy[2]; > + u8 cmd; > +}; > + > +struct rk1608_msg_queue { > + u32 buf_head; /* msg buffer head */ > + u32 buf_tail; /* msg buffer tail */ > + u32 cur_send; /* current msg send postition */ > + u32 cur_recv; /* current msg receive position */ > +}; > + > +struct msg { > + u32 size; /* unit 4 bytes */ > + u16 type; /* msg identification */ > + s8 camera_id; > + s8 sync; > +}; > + > +enum { > + /** AP -> RK1608 > + * 1 msg of sensor > + */ > + id_msg_init_sensor_t = 0x0001, > + id_msg_set_input_size_t, > + id_msg_set_output_size_t, > + id_msg_set_stream_in_on_t, > + id_msg_set_stream_in_off_t, > + id_msg_set_stream_out_on_t, > + id_msg_set_stream_out_off_t, > + > + /** AP -> RK1608 > + * 2 msg of take picture > + */ > + id_msg_take_picture_t = 0x0021, > + id_msg_take_picture_done_t, > + > + /** AP -> RK1608 > + * 3 msg of realtime parameter > + */ > + id_msg_rt_args_t = 0x0031, > + > + /** AP -> RK1608 > + * 4 msg of power manager > + */ > + id_msg_set_sys_mode_bypass_t = 0x0200, > + id_msg_set_sys_mode_standby_t, > + id_msg_set_sys_mode_idle_enable_t, > + id_msg_set_sys_mode_idle_disable_t, > + id_msg_set_sys_mode_slave_rk1608_on_t, > + id_msg_set_sys_mode_slave_rk1608_off_t, > + > + /** AP -> RK1608 > + * 5 msg of debug config > + */ > + id_msg_set_log_level_t = 0x0250, > + > + /** RK1608 -> AP > + * 6 response of sensor msg > + */ > + id_msg_init_sensor_ret_t = 0x0301, > + id_msg_set_input_size_ret_t, > + id_msg_set_output_size_ret_t, > + id_msg_set_stream_in_on_ret_t, > + id_msg_set_stream_in_off_ret_t, > + id_msg_set_stream_out_on_ret_t, > + id_msg_set_stream_out_off_ret_t, > + > + /** RK1608 -> AP > + * 7 response of take picture msg > + */ > + id_msg_take_picture_ret_t = 0x0320, > + id_msg_take_picture_done_ret_t, > + > + /** RK1608 -> AP > + * 8 response of realtime parameter msg > + */ > + id_msg_rt_args_ret_t = 0x0330, > + > + /*rk1608 -> ap*/ > + id_msg_do_i2c_t = 0x0390, > + /*ap -> rk1608*/ > + id_msg_do_i2c_ret_t, > + > + /** RK1608 -> AP > + * 9 msg of print log > + */ > + id_msg_rk1608_log_t = 0x0400, > + > + /* dsi2csi dump */ > + id_msg_dsi2sci_rgb_dump_t = 0x6000, > + id_msg_dsi2sci_nv12_dump_t = 0x6001, > + > + /** RK1608 -> AP > + * 10 msg of xfile > + */ > + id_msg_xfile_import_t = 0x8000 + 0x0600, > + id_msg_xfile_export_t, > + id_msg_xfile_mkdir_t > +}; > + > +struct msg_rk1608_log_t { > + u32 size; > + u16 type; > + s8 core_id; > + s8 log_level; > +}; > + > +/** > + * rk1608_write - RK1608 synchronous write > + * > + * @spi: spi device > + * @addr: resource address > + * @data: data buffer > + * @data_len: data buffer size, in bytes > + * Context: can sleep > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_write(struct spi_device *spi, s32 addr, > + const s32 *data, size_t data_len); > + > +/** > + * rk1608_safe_write - RK1608 synchronous write with state check > + * > + * @spi: spi device > + * @addr: resource address > + * @data: data buffer > + * @data_len: data buffer size, in bytes > + * Context: can sleep > + * > + * It returns zero on success, else operation state code. > + */ > +int rk1608_safe_write(struct spi_device *spi, > + s32 addr, const s32 *data, size_t data_len); > + > +/** > + * rk1608_read - RK1608 synchronous read > + * > + * @spi: spi device > + * @addr: resource address > + * @data: data buffer [out] > + * @data_len: data buffer size, in bytes > + * Context: can sleep > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_read(struct spi_device *spi, s32 addr, > + s32 *data, size_t data_len); > + > +/** > + * rk1608_safe_read - RK1608 synchronous read with state check > + * > + * @spi: spi device > + * @addr: resource address > + * @data: data buffer [out] > + * @data_len: data buffer size, in bytes > + * Context: can sleep > + * > + * It returns zero on success, else operation state code. > + */ > +int rk1608_safe_read(struct spi_device *spi, > + s32 addr, s32 *data, size_t data_len); > + > +/** > + * rk1608_operation_query - RK1608 last operation state query > + * > + * @spi: spi device > + * @state: last operation state [out] > + * Context: can sleep > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_operation_query(struct spi_device *spi, s32 *state); > + > +/** > + * rk1608_interrupt_request - RK1608 request a rk1608 interrupt > + * > + * @spi: spi device > + * @interrupt_num: interrupt identification > + * Context: can sleep > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_interrupt_request(struct spi_device *spi, > + s32 interrupt_num); > + > +static int rk1608_read_wait(struct spi_device *spi, > + const struct rk1608_section *sec); > + > +static int rk1608_boot_request(struct spi_device *spi, > + const struct rk1608_section *sec); > + > +static int rk1608_download_section(struct spi_device *spi, const u8 *data, > + const struct rk1608_section *sec); > +/** > + * rk1608_download_fw: - rk1608 firmware download through spi > + * > + * @spi: spi device > + * @fw_name: name of firmware file, NULL for default firmware name > + * Context: can sleep > + * > + * It returns zero on success, else a negative error code. > + **/ > +int rk1608_download_fw(struct spi_device *spi, const char *fw_name); > + > +/** > + * rk1608_msq_read_head - read rk1608 msg queue head > + * > + * @spi: spi device > + * @addr: msg queue head addr > + * @m: msg queue pointer > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_msq_read_head(struct spi_device *spi, > + u32 addr, struct rk1608_msg_queue *q); > + > +/** > + * rk1608_msq_recv_msg - receive a msg from RK1608 -> AP msg queue > + * > + * @q: msg queue > + * @m: a msg pointer buf [out] > + * > + * need call rk1608_msq_free_received_msg to free msg after msg use done > + * > + * It returns zero on success, else a negative error code. > + */ > +int rk1608_msq_recv_msg(struct spi_device *spi, struct msg **m); > +#endif > -- > 2.7.4 > > Please rebase your kernel tree to linux-next or media_tree, not rockchip bsp kernel. https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/ https://git.linuxtv.org/