diff options
Diffstat (limited to 'drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c')
-rw-r--r-- | drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c b/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c new file mode 100644 index 000000000000..a5e9d183fffd --- /dev/null +++ b/drivers/staging/media/rockchip/vpu/rk3288_vpu_hw.c @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Rockchip VPU codec driver + * + * Copyright (C) 2018 Rockchip Electronics Co., Ltd. + * Jeffy Chen <jeffy.chen@rock-chips.com> + */ + +#include <linux/clk.h> + +#include "rockchip_vpu.h" +#include "rockchip_vpu_jpeg.h" +#include "rk3288_vpu_regs.h" + +#define RK3288_ACLK_MAX_FREQ (400 * 1000 * 1000) + +/* + * Supported formats. + */ + +static const struct rockchip_vpu_fmt rk3288_vpu_enc_fmts[] = { + { + .fourcc = V4L2_PIX_FMT_YUV420M, + .codec_mode = RK_VPU_MODE_NONE, + .enc_fmt = RK3288_VPU_ENC_FMT_YUV420P, + }, + { + .fourcc = V4L2_PIX_FMT_NV12M, + .codec_mode = RK_VPU_MODE_NONE, + .enc_fmt = RK3288_VPU_ENC_FMT_YUV420SP, + }, + { + .fourcc = V4L2_PIX_FMT_YUYV, + .codec_mode = RK_VPU_MODE_NONE, + .enc_fmt = RK3288_VPU_ENC_FMT_YUYV422, + }, + { + .fourcc = V4L2_PIX_FMT_UYVY, + .codec_mode = RK_VPU_MODE_NONE, + .enc_fmt = RK3288_VPU_ENC_FMT_UYVY422, + }, + { + .fourcc = V4L2_PIX_FMT_JPEG, + .codec_mode = RK_VPU_MODE_JPEG_ENC, + .max_depth = 2, + .header_size = JPEG_HEADER_SIZE, + .frmsize = { + .min_width = 96, + .max_width = 8192, + .step_width = JPEG_MB_DIM, + .min_height = 32, + .max_height = 8192, + .step_height = JPEG_MB_DIM, + }, + }, +}; + +static irqreturn_t rk3288_vepu_irq(int irq, void *dev_id) +{ + struct rockchip_vpu_dev *vpu = dev_id; + enum vb2_buffer_state state; + u32 status, bytesused; + + status = vepu_read(vpu, VEPU_REG_INTERRUPT); + bytesused = vepu_read(vpu, VEPU_REG_STR_BUF_LIMIT) / 8; + state = (status & VEPU_REG_INTERRUPT_FRAME_RDY) ? + VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR; + + vepu_write(vpu, 0, VEPU_REG_INTERRUPT); + vepu_write(vpu, 0, VEPU_REG_AXI_CTRL); + + rockchip_vpu_irq_done(vpu, bytesused, state); + + return IRQ_HANDLED; +} + +static int rk3288_vpu_hw_init(struct rockchip_vpu_dev *vpu) +{ + /* Bump ACLK to max. possible freq. to improve performance. */ + clk_set_rate(vpu->clocks[0].clk, RK3288_ACLK_MAX_FREQ); + return 0; +} + +static void rk3288_vpu_enc_reset(struct rockchip_vpu_ctx *ctx) +{ + struct rockchip_vpu_dev *vpu = ctx->dev; + + vepu_write(vpu, VEPU_REG_INTERRUPT_DIS_BIT, VEPU_REG_INTERRUPT); + vepu_write(vpu, 0, VEPU_REG_ENC_CTRL); + vepu_write(vpu, 0, VEPU_REG_AXI_CTRL); +} + +/* + * Supported codec ops. + */ + +static const struct rockchip_vpu_codec_ops rk3288_vpu_codec_ops[] = { + [RK_VPU_MODE_JPEG_ENC] = { + .run = rk3288_vpu_jpeg_enc_run, + .reset = rk3288_vpu_enc_reset, + }, +}; + +/* + * VPU variant. + */ + +const struct rockchip_vpu_variant rk3288_vpu_variant = { + .enc_offset = 0x0, + .enc_fmts = rk3288_vpu_enc_fmts, + .num_enc_fmts = ARRAY_SIZE(rk3288_vpu_enc_fmts), + .codec_ops = rk3288_vpu_codec_ops, + .codec = RK_VPU_CODEC_JPEG, + .vepu_irq = rk3288_vepu_irq, + .init = rk3288_vpu_hw_init, + .clk_names = {"aclk", "hclk"}, + .num_clocks = 2 +}; |