diff options
Diffstat (limited to 'drivers/media/platform/imagination/e5010-jpeg-enc-hw.c')
| -rw-r--r-- | drivers/media/platform/imagination/e5010-jpeg-enc-hw.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/drivers/media/platform/imagination/e5010-jpeg-enc-hw.c b/drivers/media/platform/imagination/e5010-jpeg-enc-hw.c new file mode 100644 index 000000000000..56d5941020fa --- /dev/null +++ b/drivers/media/platform/imagination/e5010-jpeg-enc-hw.c @@ -0,0 +1,267 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Imagination E5010 JPEG Encoder driver. + * + * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/ + * + * Author: David Huang <d-huang@ti.com> + * Author: Devarsh Thakkar <devarsht@ti.com> + */ + +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/dev_printk.h> +#include "e5010-jpeg-enc-hw.h" + +static void write_reg_field(void __iomem *base, unsigned int offset, u32 mask, + unsigned int shift, u32 value) +{ + u32 reg; + + value <<= shift; + if (mask != 0xffffffff) { + reg = readl(base + offset); + value = (value & mask) | (reg & ~mask); + } + writel(value, (base + offset)); +} + +static int write_reg_field_not_busy(void __iomem *jasper_base, void __iomem *wr_base, + unsigned int offset, u32 mask, unsigned int shift, + u32 value) +{ + int ret; + u32 val; + + ret = readl_poll_timeout_atomic(jasper_base + JASPER_STATUS_OFFSET, val, + (val & JASPER_STATUS_CR_JASPER_BUSY_MASK) == 0, + 2000, 50000); + if (ret) + return ret; + + write_reg_field(wr_base, offset, mask, shift, value); + + return 0; +} + +void e5010_reset(struct device *dev, void __iomem *core_base, void __iomem *mmu_base) +{ + int ret = 0; + u32 val; + + write_reg_field(core_base, JASPER_RESET_OFFSET, + JASPER_RESET_CR_CORE_RESET_MASK, + JASPER_RESET_CR_CORE_RESET_SHIFT, 1); + + write_reg_field(mmu_base, MMU_MMU_CONTROL1_OFFSET, + MMU_MMU_CONTROL1_MMU_SOFT_RESET_MASK, + MMU_MMU_CONTROL1_MMU_SOFT_RESET_SHIFT, 1); + + ret = readl_poll_timeout_atomic(mmu_base + MMU_MMU_CONTROL1_OFFSET, val, + (val & MMU_MMU_CONTROL1_MMU_SOFT_RESET_MASK) == 0, + 2000, 50000); + if (ret) + dev_warn(dev, "MMU soft reset timed out, forcing system soft reset\n"); + + write_reg_field(core_base, JASPER_RESET_OFFSET, + JASPER_RESET_CR_SYS_RESET_MASK, + JASPER_RESET_CR_SYS_RESET_SHIFT, 1); +} + +void e5010_hw_bypass_mmu(void __iomem *mmu_base, u32 enable) +{ + /* Bypass MMU */ + write_reg_field(mmu_base, + MMU_MMU_ADDRESS_CONTROL_OFFSET, + MMU_MMU_ADDRESS_CONTROL_MMU_BYPASS_MASK, + MMU_MMU_ADDRESS_CONTROL_MMU_BYPASS_SHIFT, + enable); +} + +int e5010_hw_enable_output_address_error_irq(void __iomem *core_base, u32 enable) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_INTERRUPT_MASK_OFFSET, + JASPER_INTERRUPT_MASK_CR_OUTPUT_ADDRESS_ERROR_ENABLE_MASK, + JASPER_INTERRUPT_MASK_CR_OUTPUT_ADDRESS_ERROR_ENABLE_SHIFT, + enable); +} + +bool e5010_hw_pic_done_irq(void __iomem *core_base) +{ + u32 reg; + + reg = readl(core_base + JASPER_INTERRUPT_STATUS_OFFSET); + return reg & JASPER_INTERRUPT_STATUS_CR_PICTURE_DONE_IRQ_MASK; +} + +bool e5010_hw_output_address_irq(void __iomem *core_base) +{ + u32 reg; + + reg = readl(core_base + JASPER_INTERRUPT_STATUS_OFFSET); + return reg & JASPER_INTERRUPT_STATUS_CR_OUTPUT_ADDRESS_ERROR_IRQ_MASK; +} + +int e5010_hw_enable_picture_done_irq(void __iomem *core_base, u32 enable) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_INTERRUPT_MASK_OFFSET, + JASPER_INTERRUPT_MASK_CR_PICTURE_DONE_ENABLE_MASK, + JASPER_INTERRUPT_MASK_CR_PICTURE_DONE_ENABLE_SHIFT, + enable); +} + +int e5010_hw_enable_auto_clock_gating(void __iomem *core_base, u32 enable) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_CLK_CONTROL_OFFSET, + JASPER_CLK_CONTROL_CR_JASPER_AUTO_CLKG_ENABLE_MASK, + JASPER_CLK_CONTROL_CR_JASPER_AUTO_CLKG_ENABLE_SHIFT, + enable); +} + +int e5010_hw_enable_manual_clock_gating(void __iomem *core_base, u32 enable) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_CLK_CONTROL_OFFSET, + JASPER_CLK_CONTROL_CR_JASPER_MAN_CLKG_ENABLE_MASK, + JASPER_CLK_CONTROL_CR_JASPER_MAN_CLKG_ENABLE_SHIFT, 0); +} + +int e5010_hw_enable_crc_check(void __iomem *core_base, u32 enable) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_CRC_CTRL_OFFSET, + JASPER_CRC_CTRL_JASPER_CRC_ENABLE_MASK, + JASPER_CRC_CTRL_JASPER_CRC_ENABLE_SHIFT, enable); +} + +int e5010_hw_set_input_source_to_memory(void __iomem *core_base, u32 set) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_INPUT_CTRL0_OFFSET, + JASPER_INPUT_CTRL0_CR_INPUT_SOURCE_MASK, + JASPER_INPUT_CTRL0_CR_INPUT_SOURCE_SHIFT, set); +} + +int e5010_hw_set_input_luma_addr(void __iomem *core_base, u32 val) +{ + return write_reg_field_not_busy(core_base, core_base, + INPUT_LUMA_BASE_OFFSET, + INPUT_LUMA_BASE_CR_INPUT_LUMA_BASE_MASK, 0, val); +} + +int e5010_hw_set_input_chroma_addr(void __iomem *core_base, u32 val) +{ + return write_reg_field_not_busy(core_base, core_base, + INPUT_CHROMA_BASE_OFFSET, + INPUT_CHROMA_BASE_CR_INPUT_CHROMA_BASE_MASK, 0, val); +} + +int e5010_hw_set_output_base_addr(void __iomem *core_base, u32 val) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_OUTPUT_BASE_OFFSET, + JASPER_OUTPUT_BASE_CR_OUTPUT_BASE_MASK, + JASPER_OUTPUT_BASE_CR_OUTPUT_BASE_SHIFT, val); +} + +int e5010_hw_set_horizontal_size(void __iomem *core_base, u32 val) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_IMAGE_SIZE_OFFSET, + JASPER_IMAGE_SIZE_CR_IMAGE_HORIZONTAL_SIZE_MASK, + JASPER_IMAGE_SIZE_CR_IMAGE_HORIZONTAL_SIZE_SHIFT, + val); +} + +int e5010_hw_set_vertical_size(void __iomem *core_base, u32 val) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_IMAGE_SIZE_OFFSET, + JASPER_IMAGE_SIZE_CR_IMAGE_VERTICAL_SIZE_MASK, + JASPER_IMAGE_SIZE_CR_IMAGE_VERTICAL_SIZE_SHIFT, + val); +} + +int e5010_hw_set_luma_stride(void __iomem *core_base, u32 bytesperline) +{ + u32 val = bytesperline / 64; + + return write_reg_field_not_busy(core_base, core_base, + JASPER_INPUT_CTRL1_OFFSET, + JASPER_INPUT_CTRL1_CR_INPUT_LUMA_STRIDE_MASK, + JASPER_INPUT_CTRL1_CR_INPUT_LUMA_STRIDE_SHIFT, + val); +} + +int e5010_hw_set_chroma_stride(void __iomem *core_base, u32 bytesperline) +{ + u32 val = bytesperline / 64; + + return write_reg_field_not_busy(core_base, core_base, + JASPER_INPUT_CTRL1_OFFSET, + JASPER_INPUT_CTRL1_CR_INPUT_CHROMA_STRIDE_MASK, + JASPER_INPUT_CTRL1_CR_INPUT_CHROMA_STRIDE_SHIFT, + val); +} + +int e5010_hw_set_input_subsampling(void __iomem *core_base, u32 val) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_INPUT_CTRL0_OFFSET, + JASPER_INPUT_CTRL0_CR_INPUT_SUBSAMPLING_MASK, + JASPER_INPUT_CTRL0_CR_INPUT_SUBSAMPLING_SHIFT, + val); +} + +int e5010_hw_set_chroma_order(void __iomem *core_base, u32 val) +{ + return write_reg_field_not_busy(core_base, core_base, + JASPER_INPUT_CTRL0_OFFSET, + JASPER_INPUT_CTRL0_CR_INPUT_CHROMA_ORDER_MASK, + JASPER_INPUT_CTRL0_CR_INPUT_CHROMA_ORDER_SHIFT, + val); +} + +void e5010_hw_set_output_max_size(void __iomem *core_base, u32 val) +{ + write_reg_field(core_base, JASPER_OUTPUT_MAX_SIZE_OFFSET, + JASPER_OUTPUT_MAX_SIZE_CR_OUTPUT_MAX_SIZE_MASK, + JASPER_OUTPUT_MAX_SIZE_CR_OUTPUT_MAX_SIZE_SHIFT, + val); +} + +int e5010_hw_set_qpvalue(void __iomem *core_base, u32 offset, u32 val) +{ + return write_reg_field_not_busy(core_base, core_base, offset, 0xffffffff, 0, val); +} + +void e5010_hw_clear_output_error(void __iomem *core_base, u32 clear) +{ + /* Make sure interrupts are clear */ + write_reg_field(core_base, JASPER_INTERRUPT_CLEAR_OFFSET, + JASPER_INTERRUPT_CLEAR_CR_OUTPUT_ERROR_CLEAR_MASK, + JASPER_INTERRUPT_CLEAR_CR_OUTPUT_ERROR_CLEAR_SHIFT, clear); +} + +void e5010_hw_clear_picture_done(void __iomem *core_base, u32 clear) +{ + write_reg_field(core_base, + JASPER_INTERRUPT_CLEAR_OFFSET, + JASPER_INTERRUPT_CLEAR_CR_PICTURE_DONE_CLEAR_MASK, + JASPER_INTERRUPT_CLEAR_CR_PICTURE_DONE_CLEAR_SHIFT, clear); +} + +int e5010_hw_get_output_size(void __iomem *core_base) +{ + return readl(core_base + JASPER_OUTPUT_SIZE_OFFSET); +} + +void e5010_hw_encode_start(void __iomem *core_base, u32 start) +{ + write_reg_field(core_base, JASPER_CORE_CTRL_OFFSET, + JASPER_CORE_CTRL_CR_JASPER_ENCODE_START_MASK, + JASPER_CORE_CTRL_CR_JASPER_ENCODE_START_SHIFT, start); +} |