2 /* drivers/media/platform/s5p-cec/exynos_hdmi_cecctrl.c
7  * cec ftn file for Samsung TVOUT driver
14 #include "regs-cec.h"
23 void s5p_cec_set_divider(struct s5p_cec_dev *cec)  in s5p_cec_set_divider()  argument
30 	if (regmap_read(cec->pmu, EXYNOS_HDMI_PHY_CONTROL, &reg)) {  in s5p_cec_set_divider()
31 		dev_err(cec->dev, "failed to read phy control\n");  in s5p_cec_set_divider()
37 	if (regmap_write(cec->pmu, EXYNOS_HDMI_PHY_CONTROL, reg)) {  in s5p_cec_set_divider()
38 		dev_err(cec->dev, "failed to write phy control\n");  in s5p_cec_set_divider()
44 	writeb(0x0, cec->reg + S5P_CEC_DIVISOR_3);  in s5p_cec_set_divider()
45 	writeb(0x0, cec->reg + S5P_CEC_DIVISOR_2);  in s5p_cec_set_divider()
46 	writeb(0x0, cec->reg + S5P_CEC_DIVISOR_1);  in s5p_cec_set_divider()
47 	writeb(div_val, cec->reg + S5P_CEC_DIVISOR_0);  in s5p_cec_set_divider()
50 void s5p_cec_enable_rx(struct s5p_cec_dev *cec)  in s5p_cec_enable_rx()  argument
54 	reg = readb(cec->reg + S5P_CEC_RX_CTRL);  in s5p_cec_enable_rx()
56 	writeb(reg, cec->reg + S5P_CEC_RX_CTRL);  in s5p_cec_enable_rx()
59 void s5p_cec_mask_rx_interrupts(struct s5p_cec_dev *cec)  in s5p_cec_mask_rx_interrupts()  argument
63 	reg = readb(cec->reg + S5P_CEC_IRQ_MASK);  in s5p_cec_mask_rx_interrupts()
66 	writeb(reg, cec->reg + S5P_CEC_IRQ_MASK);  in s5p_cec_mask_rx_interrupts()
69 void s5p_cec_unmask_rx_interrupts(struct s5p_cec_dev *cec)  in s5p_cec_unmask_rx_interrupts()  argument
73 	reg = readb(cec->reg + S5P_CEC_IRQ_MASK);  in s5p_cec_unmask_rx_interrupts()
76 	writeb(reg, cec->reg + S5P_CEC_IRQ_MASK);  in s5p_cec_unmask_rx_interrupts()
79 void s5p_cec_mask_tx_interrupts(struct s5p_cec_dev *cec)  in s5p_cec_mask_tx_interrupts()  argument
83 	reg = readb(cec->reg + S5P_CEC_IRQ_MASK);  in s5p_cec_mask_tx_interrupts()
86 	writeb(reg, cec->reg + S5P_CEC_IRQ_MASK);  in s5p_cec_mask_tx_interrupts()
89 void s5p_cec_unmask_tx_interrupts(struct s5p_cec_dev *cec)  in s5p_cec_unmask_tx_interrupts()  argument
93 	reg = readb(cec->reg + S5P_CEC_IRQ_MASK);  in s5p_cec_unmask_tx_interrupts()
96 	writeb(reg, cec->reg + S5P_CEC_IRQ_MASK);  in s5p_cec_unmask_tx_interrupts()
99 void s5p_cec_reset(struct s5p_cec_dev *cec)  in s5p_cec_reset()  argument
103 	writeb(S5P_CEC_RX_CTRL_RESET, cec->reg + S5P_CEC_RX_CTRL);  in s5p_cec_reset()
104 	writeb(S5P_CEC_TX_CTRL_RESET, cec->reg + S5P_CEC_TX_CTRL);  in s5p_cec_reset()
106 	reg = readb(cec->reg + 0xc4);  in s5p_cec_reset()
108 	writeb(reg, cec->reg + 0xc4);  in s5p_cec_reset()
111 void s5p_cec_tx_reset(struct s5p_cec_dev *cec)  in s5p_cec_tx_reset()  argument
113 	writeb(S5P_CEC_TX_CTRL_RESET, cec->reg + S5P_CEC_TX_CTRL);  in s5p_cec_tx_reset()
116 void s5p_cec_rx_reset(struct s5p_cec_dev *cec)  in s5p_cec_rx_reset()  argument
120 	writeb(S5P_CEC_RX_CTRL_RESET, cec->reg + S5P_CEC_RX_CTRL);  in s5p_cec_rx_reset()
122 	reg = readb(cec->reg + 0xc4);  in s5p_cec_rx_reset()
124 	writeb(reg, cec->reg + 0xc4);  in s5p_cec_rx_reset()
127 void s5p_cec_threshold(struct s5p_cec_dev *cec)  in s5p_cec_threshold()  argument
129 	writeb(CEC_FILTER_THRESHOLD, cec->reg + S5P_CEC_RX_FILTER_TH);  in s5p_cec_threshold()
130 	writeb(0, cec->reg + S5P_CEC_RX_FILTER_CTRL);  in s5p_cec_threshold()
133 void s5p_cec_copy_packet(struct s5p_cec_dev *cec, char *data,  in s5p_cec_copy_packet()  argument
140 		writeb(data[i], cec->reg + (S5P_CEC_TX_BUFF0 + (i * 4)));  in s5p_cec_copy_packet()
144 	writeb(count, cec->reg + S5P_CEC_TX_BYTES);  in s5p_cec_copy_packet()
145 	reg = readb(cec->reg + S5P_CEC_TX_CTRL);  in s5p_cec_copy_packet()
151 		dev_dbg(cec->dev, "Broadcast");  in s5p_cec_copy_packet()
154 		dev_dbg(cec->dev, "No Broadcast");  in s5p_cec_copy_packet()
158 	writeb(reg, cec->reg + S5P_CEC_TX_CTRL);  in s5p_cec_copy_packet()
159 	dev_dbg(cec->dev, "cec-tx: cec count (%zu): %*ph", count,  in s5p_cec_copy_packet()
163 void s5p_cec_set_addr(struct s5p_cec_dev *cec, u32 addr)  in s5p_cec_set_addr()  argument
165 	writeb(addr & 0x0F, cec->reg + S5P_CEC_LOGIC_ADDR);  in s5p_cec_set_addr()
168 u32 s5p_cec_get_status(struct s5p_cec_dev *cec)  in s5p_cec_get_status()  argument
172 	status = readb(cec->reg + S5P_CEC_STATUS_0) & 0xf;  in s5p_cec_get_status()
173 	status |= (readb(cec->reg + S5P_CEC_TX_STAT1) & 0xf) << 4;  in s5p_cec_get_status()
174 	status |= readb(cec->reg + S5P_CEC_STATUS_1) << 8;  in s5p_cec_get_status()
175 	status |= readb(cec->reg + S5P_CEC_STATUS_2) << 16;  in s5p_cec_get_status()
176 	status |= readb(cec->reg + S5P_CEC_STATUS_3) << 24;  in s5p_cec_get_status()
178 	dev_dbg(cec->dev, "status = 0x%x!\n", status);  in s5p_cec_get_status()
183 void s5p_clr_pending_tx(struct s5p_cec_dev *cec)  in s5p_clr_pending_tx()  argument
186 	       cec->reg + S5P_CEC_IRQ_CLEAR);  in s5p_clr_pending_tx()
189 void s5p_clr_pending_rx(struct s5p_cec_dev *cec)  in s5p_clr_pending_rx()  argument
192 	       cec->reg + S5P_CEC_IRQ_CLEAR);  in s5p_clr_pending_rx()
195 void s5p_cec_get_rx_buf(struct s5p_cec_dev *cec, u32 size, u8 *buffer)  in s5p_cec_get_rx_buf()  argument
201 		buffer[i] = readb(cec->reg + S5P_CEC_RX_BUFF0 + (i * 4));  in s5p_cec_get_rx_buf()
205 	dev_dbg(cec->dev, "cec-rx: cec size(%d): %s", size, debug);  in s5p_cec_get_rx_buf()