| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Robert Foss | 3078 | 88.40% | 6 | 33.33% |
| Todor Tomov | 298 | 8.56% | 9 | 50.00% |
| Vladimir Zapolskiy | 101 | 2.90% | 1 | 5.56% |
| Milen Mitkov | 4 | 0.11% | 1 | 5.56% |
| Jonathan Marek | 1 | 0.03% | 1 | 5.56% |
| Total | 3482 | 18 |
// SPDX-License-Identifier: GPL-2.0 /* * camss-vfe-170.c * * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module v170 * * Copyright (C) 2020-2021 Linaro Ltd. */ #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/iopoll.h> #include "camss.h" #include "camss-vfe.h" #define VFE_HW_VERSION (0x000) #define VFE_GLOBAL_RESET_CMD (0x018) #define GLOBAL_RESET_CMD_CORE BIT(0) #define GLOBAL_RESET_CMD_CAMIF BIT(1) #define GLOBAL_RESET_CMD_BUS BIT(2) #define GLOBAL_RESET_CMD_BUS_BDG BIT(3) #define GLOBAL_RESET_CMD_REGISTER BIT(4) #define GLOBAL_RESET_CMD_PM BIT(5) #define GLOBAL_RESET_CMD_BUS_MISR BIT(6) #define GLOBAL_RESET_CMD_TESTGEN BIT(7) #define GLOBAL_RESET_CMD_DSP BIT(8) #define GLOBAL_RESET_CMD_IDLE_CGC BIT(9) #define GLOBAL_RESET_CMD_RDI0 BIT(10) #define GLOBAL_RESET_CMD_RDI1 BIT(11) #define GLOBAL_RESET_CMD_RDI2 BIT(12) #define GLOBAL_RESET_CMD_RDI3 BIT(13) #define GLOBAL_RESET_CMD_VFE_DOMAIN BIT(30) #define GLOBAL_RESET_CMD_RESET_BYPASS BIT(31) #define VFE_CORE_CFG (0x050) #define CFG_PIXEL_PATTERN_YCBYCR (0x4) #define CFG_PIXEL_PATTERN_YCRYCB (0x5) #define CFG_PIXEL_PATTERN_CBYCRY (0x6) #define CFG_PIXEL_PATTERN_CRYCBY (0x7) #define CFG_COMPOSITE_REG_UPDATE_EN BIT(4) #define VFE_IRQ_CMD (0x058) #define CMD_GLOBAL_CLEAR BIT(0) #define VFE_IRQ_MASK_0 (0x05c) #define MASK_0_CAMIF_SOF BIT(0) #define MASK_0_CAMIF_EOF BIT(1) #define MASK_0_RDI_REG_UPDATE(n) BIT((n) + 5) #define MASK_0_IMAGE_MASTER_n_PING_PONG(n) BIT((n) + 8) #define MASK_0_IMAGE_COMPOSITE_DONE_n(n) BIT((n) + 25) #define MASK_0_RESET_ACK BIT(31) #define VFE_IRQ_MASK_1 (0x060) #define MASK_1_CAMIF_ERROR BIT(0) #define MASK_1_VIOLATION BIT(7) #define MASK_1_BUS_BDG_HALT_ACK BIT(8) #define MASK_1_IMAGE_MASTER_n_BUS_OVERFLOW(n) BIT((n) + 9) #define MASK_1_RDI_SOF(n) BIT((n) + 29) #define VFE_IRQ_CLEAR_0 (0x064) #define VFE_IRQ_CLEAR_1 (0x068) #define VFE_IRQ_STATUS_0 (0x06c) #define STATUS_0_CAMIF_SOF BIT(0) #define STATUS_0_RDI_REG_UPDATE(n) BIT((n) + 5) #define STATUS_0_IMAGE_MASTER_PING_PONG(n) BIT((n) + 8) #define STATUS_0_IMAGE_COMPOSITE_DONE(n) BIT((n) + 25) #define STATUS_0_RESET_ACK BIT(31) #define VFE_IRQ_STATUS_1 (0x070) #define STATUS_1_VIOLATION BIT(7) #define STATUS_1_BUS_BDG_HALT_ACK BIT(8) #define STATUS_1_RDI_SOF(n) BIT((n) + 27) #define VFE_VIOLATION_STATUS (0x07c) #define VFE_CAMIF_CMD (0x478) #define CMD_CLEAR_CAMIF_STATUS BIT(2) #define VFE_CAMIF_CFG (0x47c) #define CFG_VSYNC_SYNC_EDGE (0) #define VSYNC_ACTIVE_HIGH (0) #define VSYNC_ACTIVE_LOW (1) #define CFG_HSYNC_SYNC_EDGE (1) #define HSYNC_ACTIVE_HIGH (0) #define HSYNC_ACTIVE_LOW (1) #define CFG_VFE_SUBSAMPLE_ENABLE BIT(4) #define CFG_BUS_SUBSAMPLE_ENABLE BIT(5) #define CFG_VFE_OUTPUT_EN BIT(6) #define CFG_BUS_OUTPUT_EN BIT(7) #define CFG_BINNING_EN BIT(9) #define CFG_FRAME_BASED_EN BIT(10) #define CFG_RAW_CROP_EN BIT(22) #define VFE_REG_UPDATE_CMD (0x4ac) #define REG_UPDATE_RDI(n) BIT(1 + (n)) #define VFE_BUS_IRQ_MASK(n) (0x2044 + (n) * 4) #define VFE_BUS_IRQ_CLEAR(n) (0x2050 + (n) * 4) #define VFE_BUS_IRQ_STATUS(n) (0x205c + (n) * 4) #define STATUS0_COMP_RESET_DONE BIT(0) #define STATUS0_COMP_REG_UPDATE0_DONE BIT(1) #define STATUS0_COMP_REG_UPDATE1_DONE BIT(2) #define STATUS0_COMP_REG_UPDATE2_DONE BIT(3) #define STATUS0_COMP_REG_UPDATE3_DONE BIT(4) #define STATUS0_COMP_REG_UPDATE_DONE(n) BIT((n) + 1) #define STATUS0_COMP0_BUF_DONE BIT(5) #define STATUS0_COMP1_BUF_DONE BIT(6) #define STATUS0_COMP2_BUF_DONE BIT(7) #define STATUS0_COMP3_BUF_DONE BIT(8) #define STATUS0_COMP4_BUF_DONE BIT(9) #define STATUS0_COMP5_BUF_DONE BIT(10) #define STATUS0_COMP_BUF_DONE(n) BIT((n) + 5) #define STATUS0_COMP_ERROR BIT(11) #define STATUS0_COMP_OVERWRITE BIT(12) #define STATUS0_OVERFLOW BIT(13) #define STATUS0_VIOLATION BIT(14) /* WM_CLIENT_BUF_DONE defined for buffers 0:19 */ #define STATUS1_WM_CLIENT_BUF_DONE(n) BIT(n) #define STATUS1_EARLY_DONE BIT(24) #define STATUS2_DUAL_COMP0_BUF_DONE BIT(0) #define STATUS2_DUAL_COMP1_BUF_DONE BIT(1) #define STATUS2_DUAL_COMP2_BUF_DONE BIT(2) #define STATUS2_DUAL_COMP3_BUF_DONE BIT(3) #define STATUS2_DUAL_COMP4_BUF_DONE BIT(4) #define STATUS2_DUAL_COMP5_BUF_DONE BIT(5) #define STATUS2_DUAL_COMP_BUF_DONE(n) BIT(n) #define STATUS2_DUAL_COMP_ERROR BIT(6) #define STATUS2_DUAL_COMP_OVERWRITE BIT(7) #define VFE_BUS_IRQ_CLEAR_GLOBAL (0x2068) #define VFE_BUS_WM_DEBUG_STATUS_CFG (0x226c) #define DEBUG_STATUS_CFG_STATUS0(n) BIT(n) #define DEBUG_STATUS_CFG_STATUS1(n) BIT(8 + (n)) #define VFE_BUS_WM_ADDR_SYNC_FRAME_HEADER (0x2080) #define VFE_BUS_WM_ADDR_SYNC_NO_SYNC (0x2084) #define BUS_VER2_MAX_CLIENTS (24) #define WM_ADDR_NO_SYNC_DEFAULT_VAL \ ((1 << BUS_VER2_MAX_CLIENTS) - 1) #define VFE_BUS_WM_CGC_OVERRIDE (0x200c) #define WM_CGC_OVERRIDE_ALL (0xFFFFF) #define VFE_BUS_WM_TEST_BUS_CTRL (0x211c) #define VFE_BUS_WM_STATUS0(n) (0x2200 + (n) * 0x100) #define VFE_BUS_WM_STATUS1(n) (0x2204 + (n) * 0x100) #define VFE_BUS_WM_CFG(n) (0x2208 + (n) * 0x100) #define WM_CFG_EN (0) #define WM_CFG_MODE (1) #define MODE_QCOM_PLAIN (0) #define MODE_MIPI_RAW (1) #define WM_CFG_VIRTUALFRAME (2) #define VFE_BUS_WM_HEADER_ADDR(n) (0x220c + (n) * 0x100) #define VFE_BUS_WM_HEADER_CFG(n) (0x2210 + (n) * 0x100) #define VFE_BUS_WM_IMAGE_ADDR(n) (0x2214 + (n) * 0x100) #define VFE_BUS_WM_IMAGE_ADDR_OFFSET(n) (0x2218 + (n) * 0x100) #define VFE_BUS_WM_BUFFER_WIDTH_CFG(n) (0x221c + (n) * 0x100) #define WM_BUFFER_DEFAULT_WIDTH (0xFF01) #define VFE_BUS_WM_BUFFER_HEIGHT_CFG(n) (0x2220 + (n) * 0x100) #define VFE_BUS_WM_PACKER_CFG(n) (0x2224 + (n) * 0x100) #define VFE_BUS_WM_STRIDE(n) (0x2228 + (n) * 0x100) #define WM_STRIDE_DEFAULT_STRIDE (0xFF01) #define VFE_BUS_WM_IRQ_SUBSAMPLE_PERIOD(n) (0x2248 + (n) * 0x100) #define VFE_BUS_WM_IRQ_SUBSAMPLE_PATTERN(n) (0x224c + (n) * 0x100) #define VFE_BUS_WM_FRAMEDROP_PERIOD(n) (0x2250 + (n) * 0x100) #define VFE_BUS_WM_FRAMEDROP_PATTERN(n) (0x2254 + (n) * 0x100) #define VFE_BUS_WM_FRAME_INC(n) (0x2258 + (n) * 0x100) #define VFE_BUS_WM_BURST_LIMIT(n) (0x225c + (n) * 0x100) static u32 vfe_hw_version(struct vfe_device *vfe) { u32 hw_version = readl_relaxed(vfe->base + VFE_HW_VERSION); u32 gen = (hw_version >> 28) & 0xF; u32 rev = (hw_version >> 16) & 0xFFF; u32 step = hw_version & 0xFFFF; dev_dbg(vfe->camss->dev, "VFE HW Version = %u.%u.%u\n", gen, rev, step); return hw_version; } static inline void vfe_reg_set(struct vfe_device *vfe, u32 reg, u32 set_bits) { u32 bits = readl_relaxed(vfe->base + reg); writel_relaxed(bits | set_bits, vfe->base + reg); } static void vfe_global_reset(struct vfe_device *vfe) { u32 reset_bits = GLOBAL_RESET_CMD_CORE | GLOBAL_RESET_CMD_CAMIF | GLOBAL_RESET_CMD_BUS | GLOBAL_RESET_CMD_BUS_BDG | GLOBAL_RESET_CMD_REGISTER | GLOBAL_RESET_CMD_TESTGEN | GLOBAL_RESET_CMD_DSP | GLOBAL_RESET_CMD_IDLE_CGC | GLOBAL_RESET_CMD_RDI0 | GLOBAL_RESET_CMD_RDI1 | GLOBAL_RESET_CMD_RDI2; writel_relaxed(BIT(31), vfe->base + VFE_IRQ_MASK_0); /* Make sure IRQ mask has been written before resetting */ wmb(); writel_relaxed(reset_bits, vfe->base + VFE_GLOBAL_RESET_CMD); } static void vfe_wm_start(struct vfe_device *vfe, u8 wm, struct vfe_line *line) { u32 val; /*Set Debug Registers*/ val = DEBUG_STATUS_CFG_STATUS0(1) | DEBUG_STATUS_CFG_STATUS0(7); writel_relaxed(val, vfe->base + VFE_BUS_WM_DEBUG_STATUS_CFG); /* BUS_WM_INPUT_IF_ADDR_SYNC_FRAME_HEADER */ writel_relaxed(0, vfe->base + VFE_BUS_WM_ADDR_SYNC_FRAME_HEADER); /* no clock gating at bus input */ val = WM_CGC_OVERRIDE_ALL; writel_relaxed(val, vfe->base + VFE_BUS_WM_CGC_OVERRIDE); writel_relaxed(0x0, vfe->base + VFE_BUS_WM_TEST_BUS_CTRL); /* if addr_no_sync has default value then config the addr no sync reg */ val = WM_ADDR_NO_SYNC_DEFAULT_VAL; writel_relaxed(val, vfe->base + VFE_BUS_WM_ADDR_SYNC_NO_SYNC); writel_relaxed(0xf, vfe->base + VFE_BUS_WM_BURST_LIMIT(wm)); val = WM_BUFFER_DEFAULT_WIDTH; writel_relaxed(val, vfe->base + VFE_BUS_WM_BUFFER_WIDTH_CFG(wm)); val = 0; writel_relaxed(val, vfe->base + VFE_BUS_WM_BUFFER_HEIGHT_CFG(wm)); val = 0; writel_relaxed(val, vfe->base + VFE_BUS_WM_PACKER_CFG(wm)); // XXX 1 for PLAIN8? /* Configure stride for RDIs */ val = WM_STRIDE_DEFAULT_STRIDE; writel_relaxed(val, vfe->base + VFE_BUS_WM_STRIDE(wm)); /* Enable WM */ val = 1 << WM_CFG_EN | MODE_MIPI_RAW << WM_CFG_MODE; writel_relaxed(val, vfe->base + VFE_BUS_WM_CFG(wm)); } static void vfe_wm_stop(struct vfe_device *vfe, u8 wm) { /* Disable WM */ writel_relaxed(0, vfe->base + VFE_BUS_WM_CFG(wm)); } static void vfe_wm_update(struct vfe_device *vfe, u8 wm, u32 addr, struct vfe_line *line) { struct v4l2_pix_format_mplane *pix = &line->video_out.active_fmt.fmt.pix_mp; u32 stride = pix->plane_fmt[0].bytesperline; writel_relaxed(addr, vfe->base + VFE_BUS_WM_IMAGE_ADDR(wm)); writel_relaxed(stride * pix->height, vfe->base + VFE_BUS_WM_FRAME_INC(wm)); } static void vfe_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id) { vfe->reg_update |= REG_UPDATE_RDI(line_id); /* Enforce ordering between previous reg writes and reg update */ wmb(); writel_relaxed(vfe->reg_update, vfe->base + VFE_REG_UPDATE_CMD); /* Enforce ordering between reg update and subsequent reg writes */ wmb(); } static inline void vfe_reg_update_clear(struct vfe_device *vfe, enum vfe_line_id line_id) { vfe->reg_update &= ~REG_UPDATE_RDI(line_id); } static void vfe_enable_irq_common(struct vfe_device *vfe) { vfe_reg_set(vfe, VFE_IRQ_MASK_0, ~0u); vfe_reg_set(vfe, VFE_IRQ_MASK_1, ~0u); writel_relaxed(~0u, vfe->base + VFE_BUS_IRQ_MASK(0)); writel_relaxed(~0u, vfe->base + VFE_BUS_IRQ_MASK(1)); writel_relaxed(~0u, vfe->base + VFE_BUS_IRQ_MASK(2)); } static void vfe_isr_halt_ack(struct vfe_device *vfe) { complete(&vfe->halt_complete); } static void vfe_isr_read(struct vfe_device *vfe, u32 *status0, u32 *status1) { *status0 = readl_relaxed(vfe->base + VFE_IRQ_STATUS_0); *status1 = readl_relaxed(vfe->base + VFE_IRQ_STATUS_1); writel_relaxed(*status0, vfe->base + VFE_IRQ_CLEAR_0); writel_relaxed(*status1, vfe->base + VFE_IRQ_CLEAR_1); /* Enforce ordering between IRQ Clear and Global IRQ Clear */ wmb(); writel_relaxed(CMD_GLOBAL_CLEAR, vfe->base + VFE_IRQ_CMD); } static void vfe_violation_read(struct vfe_device *vfe) { u32 violation = readl_relaxed(vfe->base + VFE_VIOLATION_STATUS); pr_err_ratelimited("VFE: violation = 0x%08x\n", violation); } /* * vfe_isr - VFE module interrupt handler * @irq: Interrupt line * @dev: VFE device * * Return IRQ_HANDLED on success */ static irqreturn_t vfe_isr(int irq, void *dev) { struct vfe_device *vfe = dev; u32 status0, status1, vfe_bus_status[3]; int i, wm; status0 = readl_relaxed(vfe->base + VFE_IRQ_STATUS_0); status1 = readl_relaxed(vfe->base + VFE_IRQ_STATUS_1); writel_relaxed(status0, vfe->base + VFE_IRQ_CLEAR_0); writel_relaxed(status1, vfe->base + VFE_IRQ_CLEAR_1); for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++) { vfe_bus_status[i] = readl_relaxed(vfe->base + VFE_BUS_IRQ_STATUS(i)); writel_relaxed(vfe_bus_status[i], vfe->base + VFE_BUS_IRQ_CLEAR(i)); } /* Enforce ordering between IRQ reading and interpretation */ wmb(); writel_relaxed(CMD_GLOBAL_CLEAR, vfe->base + VFE_IRQ_CMD); writel_relaxed(1, vfe->base + VFE_BUS_IRQ_CLEAR_GLOBAL); if (status0 & STATUS_0_RESET_ACK) vfe->isr_ops.reset_ack(vfe); for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++) if (status0 & STATUS_0_RDI_REG_UPDATE(i)) vfe->isr_ops.reg_update(vfe, i); for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++) if (status0 & STATUS_1_RDI_SOF(i)) vfe->isr_ops.sof(vfe, i); for (i = 0; i < MSM_VFE_COMPOSITE_IRQ_NUM; i++) if (vfe_bus_status[0] & STATUS0_COMP_BUF_DONE(i)) vfe->isr_ops.comp_done(vfe, i); for (wm = 0; wm < MSM_VFE_IMAGE_MASTERS_NUM; wm++) if (status0 & BIT(9)) if (vfe_bus_status[1] & STATUS1_WM_CLIENT_BUF_DONE(wm)) vfe->isr_ops.wm_done(vfe, wm); return IRQ_HANDLED; } /* * vfe_halt - Trigger halt on VFE module and wait to complete * @vfe: VFE device * * Return 0 on success or a negative error code otherwise */ static int vfe_halt(struct vfe_device *vfe) { /* rely on vfe_disable_output() to stop the VFE */ return 0; } static int vfe_get_output(struct vfe_line *line) { struct vfe_device *vfe = to_vfe(line); struct vfe_output *output; unsigned long flags; int wm_idx; spin_lock_irqsave(&vfe->output_lock, flags); output = &line->output; if (output->state > VFE_OUTPUT_RESERVED) { dev_err(vfe->camss->dev, "Output is running\n"); goto error; } output->wm_num = 1; wm_idx = vfe_reserve_wm(vfe, line->id); if (wm_idx < 0) { dev_err(vfe->camss->dev, "Can not reserve wm\n"); goto error_get_wm; } output->wm_idx[0] = wm_idx; output->drop_update_idx = 0; spin_unlock_irqrestore(&vfe->output_lock, flags); return 0; error_get_wm: vfe_release_wm(vfe, output->wm_idx[0]); output->state = VFE_OUTPUT_OFF; error: spin_unlock_irqrestore(&vfe->output_lock, flags); return -EINVAL; } static int vfe_enable_output(struct vfe_line *line) { struct vfe_device *vfe = to_vfe(line); struct vfe_output *output = &line->output; const struct vfe_hw_ops *ops = vfe->ops; struct media_entity *sensor; unsigned long flags; unsigned int frame_skip = 0; unsigned int i; sensor = camss_find_sensor(&line->subdev.entity); if (sensor) { struct v4l2_subdev *subdev = media_entity_to_v4l2_subdev(sensor); v4l2_subdev_call(subdev, sensor, g_skip_frames, &frame_skip); /* Max frame skip is 29 frames */ if (frame_skip > VFE_FRAME_DROP_VAL - 1) frame_skip = VFE_FRAME_DROP_VAL - 1; } spin_lock_irqsave(&vfe->output_lock, flags); ops->reg_update_clear(vfe, line->id); if (output->state > VFE_OUTPUT_RESERVED) { dev_err(vfe->camss->dev, "Output is not in reserved state %d\n", output->state); spin_unlock_irqrestore(&vfe->output_lock, flags); return -EINVAL; } WARN_ON(output->gen2.active_num); output->state = VFE_OUTPUT_ON; output->sequence = 0; output->wait_reg_update = 0; reinit_completion(&output->reg_update); vfe_wm_start(vfe, output->wm_idx[0], line); for (i = 0; i < 2; i++) { output->buf[i] = vfe_buf_get_pending(output); if (!output->buf[i]) break; output->gen2.active_num++; vfe_wm_update(vfe, output->wm_idx[0], output->buf[i]->addr[0], line); } ops->reg_update(vfe, line->id); spin_unlock_irqrestore(&vfe->output_lock, flags); return 0; } static int vfe_disable_output(struct vfe_line *line) { struct vfe_device *vfe = to_vfe(line); struct vfe_output *output = &line->output; unsigned long flags; unsigned int i; bool done; int timeout = 0; do { spin_lock_irqsave(&vfe->output_lock, flags); done = !output->gen2.active_num; spin_unlock_irqrestore(&vfe->output_lock, flags); usleep_range(10000, 20000); if (timeout++ == 100) { dev_err(vfe->camss->dev, "VFE idle timeout - resetting\n"); vfe_reset(vfe); output->gen2.active_num = 0; return 0; } } while (!done); spin_lock_irqsave(&vfe->output_lock, flags); for (i = 0; i < output->wm_num; i++) vfe_wm_stop(vfe, output->wm_idx[i]); spin_unlock_irqrestore(&vfe->output_lock, flags); return 0; } /* * vfe_enable - Enable streaming on VFE line * @line: VFE line * * Return 0 on success or a negative error code otherwise */ static int vfe_enable(struct vfe_line *line) { struct vfe_device *vfe = to_vfe(line); int ret; mutex_lock(&vfe->stream_lock); if (!vfe->stream_count) vfe_enable_irq_common(vfe); vfe->stream_count++; mutex_unlock(&vfe->stream_lock); ret = vfe_get_output(line); if (ret < 0) goto error_get_output; ret = vfe_enable_output(line); if (ret < 0) goto error_enable_output; vfe->was_streaming = 1; return 0; error_enable_output: vfe_put_output(line); error_get_output: mutex_lock(&vfe->stream_lock); vfe->stream_count--; mutex_unlock(&vfe->stream_lock); return ret; } /* * vfe_disable - Disable streaming on VFE line * @line: VFE line * * Return 0 on success or a negative error code otherwise */ static int vfe_disable(struct vfe_line *line) { struct vfe_device *vfe = to_vfe(line); vfe_disable_output(line); vfe_put_output(line); mutex_lock(&vfe->stream_lock); vfe->stream_count--; mutex_unlock(&vfe->stream_lock); return 0; } /* * vfe_isr_sof - Process start of frame interrupt * @vfe: VFE Device * @line_id: VFE line */ static void vfe_isr_sof(struct vfe_device *vfe, enum vfe_line_id line_id) { /* nop */ } /* * vfe_isr_reg_update - Process reg update interrupt * @vfe: VFE Device * @line_id: VFE line */ static void vfe_isr_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id) { struct vfe_output *output; unsigned long flags; spin_lock_irqsave(&vfe->output_lock, flags); vfe->ops->reg_update_clear(vfe, line_id); output = &vfe->line[line_id].output; if (output->wait_reg_update) { output->wait_reg_update = 0; complete(&output->reg_update); } spin_unlock_irqrestore(&vfe->output_lock, flags); } /* * vfe_isr_wm_done - Process write master done interrupt * @vfe: VFE Device * @wm: Write master id */ static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm) { struct vfe_line *line = &vfe->line[vfe->wm_output_map[wm]]; struct camss_buffer *ready_buf; struct vfe_output *output; unsigned long flags; u32 index; u64 ts = ktime_get_ns(); spin_lock_irqsave(&vfe->output_lock, flags); if (vfe->wm_output_map[wm] == VFE_LINE_NONE) { dev_err_ratelimited(vfe->camss->dev, "Received wm done for unmapped index\n"); goto out_unlock; } output = &vfe->line[vfe->wm_output_map[wm]].output; ready_buf = output->buf[0]; if (!ready_buf) { dev_err_ratelimited(vfe->camss->dev, "Missing ready buf %d!\n", output->state); goto out_unlock; } ready_buf->vb.vb2_buf.timestamp = ts; ready_buf->vb.sequence = output->sequence++; index = 0; output->buf[0] = output->buf[1]; if (output->buf[0]) index = 1; output->buf[index] = vfe_buf_get_pending(output); if (output->buf[index]) vfe_wm_update(vfe, output->wm_idx[0], output->buf[index]->addr[0], line); else output->gen2.active_num--; spin_unlock_irqrestore(&vfe->output_lock, flags); vb2_buffer_done(&ready_buf->vb.vb2_buf, VB2_BUF_STATE_DONE); return; out_unlock: spin_unlock_irqrestore(&vfe->output_lock, flags); } /* * vfe_pm_domain_off - Disable power domains specific to this VFE. * @vfe: VFE Device */ static void vfe_pm_domain_off(struct vfe_device *vfe) { struct camss *camss = vfe->camss; if (vfe->id >= camss->vfe_num) return; device_link_del(camss->genpd_link[vfe->id]); } /* * vfe_pm_domain_on - Enable power domains specific to this VFE. * @vfe: VFE Device */ static int vfe_pm_domain_on(struct vfe_device *vfe) { struct camss *camss = vfe->camss; enum vfe_line_id id = vfe->id; if (id >= camss->vfe_num) return 0; camss->genpd_link[id] = device_link_add(camss->dev, camss->genpd[id], DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE); if (!camss->genpd_link[id]) return -EINVAL; return 0; } /* * vfe_queue_buffer - Add empty buffer * @vid: Video device structure * @buf: Buffer to be enqueued * * Add an empty buffer - depending on the current number of buffers it will be * put in pending buffer queue or directly given to the hardware to be filled. * * Return 0 on success or a negative error code otherwise */ static int vfe_queue_buffer(struct camss_video *vid, struct camss_buffer *buf) { struct vfe_line *line = container_of(vid, struct vfe_line, video_out); struct vfe_device *vfe = to_vfe(line); struct vfe_output *output; unsigned long flags; output = &line->output; spin_lock_irqsave(&vfe->output_lock, flags); if (output->state == VFE_OUTPUT_ON && output->gen2.active_num < 2) { output->buf[output->gen2.active_num++] = buf; vfe_wm_update(vfe, output->wm_idx[0], buf->addr[0], line); } else { vfe_buf_add_pending(output, buf); } spin_unlock_irqrestore(&vfe->output_lock, flags); return 0; } static const struct vfe_isr_ops vfe_isr_ops_170 = { .reset_ack = vfe_isr_reset_ack, .halt_ack = vfe_isr_halt_ack, .reg_update = vfe_isr_reg_update, .sof = vfe_isr_sof, .comp_done = vfe_isr_comp_done, .wm_done = vfe_isr_wm_done, }; static const struct camss_video_ops vfe_video_ops_170 = { .queue_buffer = vfe_queue_buffer, .flush_buffers = vfe_flush_buffers, }; static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe) { vfe->isr_ops = vfe_isr_ops_170; vfe->video_ops = vfe_video_ops_170; vfe->line_num = VFE_LINE_NUM_GEN2; } const struct vfe_hw_ops vfe_ops_170 = { .global_reset = vfe_global_reset, .hw_version = vfe_hw_version, .isr_read = vfe_isr_read, .isr = vfe_isr, .pm_domain_off = vfe_pm_domain_off, .pm_domain_on = vfe_pm_domain_on, .reg_update_clear = vfe_reg_update_clear, .reg_update = vfe_reg_update, .subdev_init = vfe_subdev_init, .vfe_disable = vfe_disable, .vfe_enable = vfe_enable, .vfe_halt = vfe_halt, .violation_read = vfe_violation_read, };
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