diff options
Diffstat (limited to 'drivers/staging/media/s5p-cec/exynos_hdmi_cecctrl.c')
| -rw-r--r-- | drivers/staging/media/s5p-cec/exynos_hdmi_cecctrl.c | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/drivers/staging/media/s5p-cec/exynos_hdmi_cecctrl.c b/drivers/staging/media/s5p-cec/exynos_hdmi_cecctrl.c deleted file mode 100644 index 1edf667..0000000 --- a/drivers/staging/media/s5p-cec/exynos_hdmi_cecctrl.c +++ /dev/null @@ -1,208 +0,0 @@ -/* drivers/media/platform/s5p-cec/exynos_hdmi_cecctrl.c - * - * Copyright (c) 2009, 2014 Samsung Electronics - * http://www.samsung.com/ - * - * cec ftn file for Samsung TVOUT driver - * - * 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 <linux/io.h> -#include <linux/device.h> - -#include "exynos_hdmi_cec.h" -#include "regs-cec.h" - -#define S5P_HDMI_FIN 24000000 -#define CEC_DIV_RATIO 320000 - -#define CEC_MESSAGE_BROADCAST_MASK 0x0F -#define CEC_MESSAGE_BROADCAST 0x0F -#define CEC_FILTER_THRESHOLD 0x15 - -void s5p_cec_set_divider(struct s5p_cec_dev *cec) -{ - u32 div_ratio, div_val; - unsigned int reg; - - div_ratio = S5P_HDMI_FIN / CEC_DIV_RATIO - 1; - - if (regmap_read(cec->pmu, EXYNOS_HDMI_PHY_CONTROL, ®)) { - dev_err(cec->dev, "failed to read phy control\n"); - return; - } - - reg = (reg & ~(0x3FF << 16)) | (div_ratio << 16); - - if (regmap_write(cec->pmu, EXYNOS_HDMI_PHY_CONTROL, reg)) { - dev_err(cec->dev, "failed to write phy control\n"); - return; - } - - div_val = CEC_DIV_RATIO * 0.00005 - 1; - - writeb(0x0, cec->reg + S5P_CEC_DIVISOR_3); - writeb(0x0, cec->reg + S5P_CEC_DIVISOR_2); - writeb(0x0, cec->reg + S5P_CEC_DIVISOR_1); - writeb(div_val, cec->reg + S5P_CEC_DIVISOR_0); -} - -void s5p_cec_enable_rx(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_RX_CTRL); - reg |= S5P_CEC_RX_CTRL_ENABLE; - writeb(reg, cec->reg + S5P_CEC_RX_CTRL); -} - -void s5p_cec_mask_rx_interrupts(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_IRQ_MASK); - reg |= S5P_CEC_IRQ_RX_DONE; - reg |= S5P_CEC_IRQ_RX_ERROR; - writeb(reg, cec->reg + S5P_CEC_IRQ_MASK); -} - -void s5p_cec_unmask_rx_interrupts(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_IRQ_MASK); - reg &= ~S5P_CEC_IRQ_RX_DONE; - reg &= ~S5P_CEC_IRQ_RX_ERROR; - writeb(reg, cec->reg + S5P_CEC_IRQ_MASK); -} - -void s5p_cec_mask_tx_interrupts(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_IRQ_MASK); - reg |= S5P_CEC_IRQ_TX_DONE; - reg |= S5P_CEC_IRQ_TX_ERROR; - writeb(reg, cec->reg + S5P_CEC_IRQ_MASK); -} - -void s5p_cec_unmask_tx_interrupts(struct s5p_cec_dev *cec) -{ - u8 reg; - - reg = readb(cec->reg + S5P_CEC_IRQ_MASK); - reg &= ~S5P_CEC_IRQ_TX_DONE; - reg &= ~S5P_CEC_IRQ_TX_ERROR; - writeb(reg, cec->reg + S5P_CEC_IRQ_MASK); -} - -void s5p_cec_reset(struct s5p_cec_dev *cec) -{ - u8 reg; - - writeb(S5P_CEC_RX_CTRL_RESET, cec->reg + S5P_CEC_RX_CTRL); - writeb(S5P_CEC_TX_CTRL_RESET, cec->reg + S5P_CEC_TX_CTRL); - - reg = readb(cec->reg + 0xc4); - reg &= ~0x1; - writeb(reg, cec->reg + 0xc4); -} - -void s5p_cec_tx_reset(struct s5p_cec_dev *cec) -{ - writeb(S5P_CEC_TX_CTRL_RESET, cec->reg + S5P_CEC_TX_CTRL); -} - -void s5p_cec_rx_reset(struct s5p_cec_dev *cec) -{ - u8 reg; - - writeb(S5P_CEC_RX_CTRL_RESET, cec->reg + S5P_CEC_RX_CTRL); - - reg = readb(cec->reg + 0xc4); - reg &= ~0x1; - writeb(reg, cec->reg + 0xc4); -} - -void s5p_cec_threshold(struct s5p_cec_dev *cec) -{ - writeb(CEC_FILTER_THRESHOLD, cec->reg + S5P_CEC_RX_FILTER_TH); - writeb(0, cec->reg + S5P_CEC_RX_FILTER_CTRL); -} - -void s5p_cec_copy_packet(struct s5p_cec_dev *cec, char *data, - size_t count, u8 retries) -{ - int i = 0; - u8 reg; - - while (i < count) { - writeb(data[i], cec->reg + (S5P_CEC_TX_BUFF0 + (i * 4))); - i++; - } - - writeb(count, cec->reg + S5P_CEC_TX_BYTES); - reg = readb(cec->reg + S5P_CEC_TX_CTRL); - reg |= S5P_CEC_TX_CTRL_START; - reg &= ~0x70; - reg |= retries << 4; - - if ((data[0] & CEC_MESSAGE_BROADCAST_MASK) == CEC_MESSAGE_BROADCAST) { - dev_dbg(cec->dev, "Broadcast"); - reg |= S5P_CEC_TX_CTRL_BCAST; - } else { - dev_dbg(cec->dev, "No Broadcast"); - reg &= ~S5P_CEC_TX_CTRL_BCAST; - } - - writeb(reg, cec->reg + S5P_CEC_TX_CTRL); - dev_dbg(cec->dev, "cec-tx: cec count (%zu): %*ph", count, - (int)count, data); -} - -void s5p_cec_set_addr(struct s5p_cec_dev *cec, u32 addr) -{ - writeb(addr & 0x0F, cec->reg + S5P_CEC_LOGIC_ADDR); -} - -u32 s5p_cec_get_status(struct s5p_cec_dev *cec) -{ - u32 status = 0; - - status = readb(cec->reg + S5P_CEC_STATUS_0); - status |= readb(cec->reg + S5P_CEC_STATUS_1) << 8; - status |= readb(cec->reg + S5P_CEC_STATUS_2) << 16; - status |= readb(cec->reg + S5P_CEC_STATUS_3) << 24; - - dev_dbg(cec->dev, "status = 0x%x!\n", status); - - return status; -} - -void s5p_clr_pending_tx(struct s5p_cec_dev *cec) -{ - writeb(S5P_CEC_IRQ_TX_DONE | S5P_CEC_IRQ_TX_ERROR, - cec->reg + S5P_CEC_IRQ_CLEAR); -} - -void s5p_clr_pending_rx(struct s5p_cec_dev *cec) -{ - writeb(S5P_CEC_IRQ_RX_DONE | S5P_CEC_IRQ_RX_ERROR, - cec->reg + S5P_CEC_IRQ_CLEAR); -} - -void s5p_cec_get_rx_buf(struct s5p_cec_dev *cec, u32 size, u8 *buffer) -{ - u32 i = 0; - char debug[40]; - - while (i < size) { - buffer[i] = readb(cec->reg + S5P_CEC_RX_BUFF0 + (i * 4)); - sprintf(debug + i * 2, "%02x ", buffer[i]); - i++; - } - dev_dbg(cec->dev, "cec-rx: cec size(%d): %s", size, debug); -} |
