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-rw-r--r--drivers/thunderbolt/switch.c50
-rw-r--r--drivers/thunderbolt/tb_regs.h32
-rw-r--r--drivers/thunderbolt/tunnel.c8
3 files changed, 46 insertions, 44 deletions
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 7d05c858423b..c6bfdcaf7973 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -835,11 +835,12 @@ int tb_dp_port_hpd_is_active(struct tb_port *port)
u32 data;
int ret;
- ret = tb_port_read(port, &data, TB_CFG_PORT, port->cap_adap + 2, 1);
+ ret = tb_port_read(port, &data, TB_CFG_PORT,
+ port->cap_adap + ADP_DP_CS_2, 1);
if (ret)
return ret;
- return !!(data & TB_DP_HDP);
+ return !!(data & ADP_DP_CS_2_HDP);
}
/**
@@ -853,12 +854,14 @@ int tb_dp_port_hpd_clear(struct tb_port *port)
u32 data;
int ret;
- ret = tb_port_read(port, &data, TB_CFG_PORT, port->cap_adap + 3, 1);
+ ret = tb_port_read(port, &data, TB_CFG_PORT,
+ port->cap_adap + ADP_DP_CS_3, 1);
if (ret)
return ret;
- data |= TB_DP_HPDC;
- return tb_port_write(port, &data, TB_CFG_PORT, port->cap_adap + 3, 1);
+ data |= ADP_DP_CS_3_HDPC;
+ return tb_port_write(port, &data, TB_CFG_PORT,
+ port->cap_adap + ADP_DP_CS_3, 1);
}
/**
@@ -876,20 +879,23 @@ int tb_dp_port_set_hops(struct tb_port *port, unsigned int video,
u32 data[2];
int ret;
- ret = tb_port_read(port, data, TB_CFG_PORT, port->cap_adap,
- ARRAY_SIZE(data));
+ ret = tb_port_read(port, data, TB_CFG_PORT,
+ port->cap_adap + ADP_DP_CS_0, ARRAY_SIZE(data));
if (ret)
return ret;
- data[0] &= ~TB_DP_VIDEO_HOPID_MASK;
- data[1] &= ~(TB_DP_AUX_RX_HOPID_MASK | TB_DP_AUX_TX_HOPID_MASK);
+ data[0] &= ~ADP_DP_CS_0_VIDEO_HOPID_MASK;
+ data[1] &= ~ADP_DP_CS_1_AUX_RX_HOPID_MASK;
+ data[1] &= ~ADP_DP_CS_1_AUX_RX_HOPID_MASK;
- data[0] |= (video << TB_DP_VIDEO_HOPID_SHIFT) & TB_DP_VIDEO_HOPID_MASK;
- data[1] |= aux_tx & TB_DP_AUX_TX_HOPID_MASK;
- data[1] |= (aux_rx << TB_DP_AUX_RX_HOPID_SHIFT) & TB_DP_AUX_RX_HOPID_MASK;
+ data[0] |= (video << ADP_DP_CS_0_VIDEO_HOPID_SHIFT) &
+ ADP_DP_CS_0_VIDEO_HOPID_MASK;
+ data[1] |= aux_tx & ADP_DP_CS_1_AUX_TX_HOPID_MASK;
+ data[1] |= (aux_rx << ADP_DP_CS_1_AUX_RX_HOPID_SHIFT) &
+ ADP_DP_CS_1_AUX_RX_HOPID_MASK;
- return tb_port_write(port, data, TB_CFG_PORT, port->cap_adap,
- ARRAY_SIZE(data));
+ return tb_port_write(port, data, TB_CFG_PORT,
+ port->cap_adap + ADP_DP_CS_0, ARRAY_SIZE(data));
}
/**
@@ -900,11 +906,11 @@ bool tb_dp_port_is_enabled(struct tb_port *port)
{
u32 data[2];
- if (tb_port_read(port, data, TB_CFG_PORT, port->cap_adap,
+ if (tb_port_read(port, data, TB_CFG_PORT, port->cap_adap + ADP_DP_CS_0,
ARRAY_SIZE(data)))
return false;
- return !!(data[0] & (TB_DP_VIDEO_EN | TB_DP_AUX_EN));
+ return !!(data[0] & (ADP_DP_CS_0_VE | ADP_DP_CS_0_AE));
}
/**
@@ -920,18 +926,18 @@ int tb_dp_port_enable(struct tb_port *port, bool enable)
u32 data[2];
int ret;
- ret = tb_port_read(port, data, TB_CFG_PORT, port->cap_adap,
- ARRAY_SIZE(data));
+ ret = tb_port_read(port, data, TB_CFG_PORT,
+ port->cap_adap + ADP_DP_CS_0, ARRAY_SIZE(data));
if (ret)
return ret;
if (enable)
- data[0] |= TB_DP_VIDEO_EN | TB_DP_AUX_EN;
+ data[0] |= ADP_DP_CS_0_VE | ADP_DP_CS_0_AE;
else
- data[0] &= ~(TB_DP_VIDEO_EN | TB_DP_AUX_EN);
+ data[0] &= ~(ADP_DP_CS_0_VE | ADP_DP_CS_0_AE);
- return tb_port_write(port, data, TB_CFG_PORT, port->cap_adap,
- ARRAY_SIZE(data));
+ return tb_port_write(port, data, TB_CFG_PORT,
+ port->cap_adap + ADP_DP_CS_0, ARRAY_SIZE(data));
}
/* switch utility functions */
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h
index 4be9df354527..faa14b3df83c 100644
--- a/drivers/thunderbolt/tb_regs.h
+++ b/drivers/thunderbolt/tb_regs.h
@@ -221,24 +221,20 @@ struct tb_regs_port_header {
#define ADP_CS_5_LCA_SHIFT 22
/* Display Port adapter registers */
-
-/* DWORD 0 */
-#define TB_DP_VIDEO_HOPID_SHIFT 16
-#define TB_DP_VIDEO_HOPID_MASK GENMASK(26, 16)
-#define TB_DP_AUX_EN BIT(30)
-#define TB_DP_VIDEO_EN BIT(31)
-/* DWORD 1 */
-#define TB_DP_AUX_TX_HOPID_MASK GENMASK(10, 0)
-#define TB_DP_AUX_RX_HOPID_SHIFT 11
-#define TB_DP_AUX_RX_HOPID_MASK GENMASK(21, 11)
-/* DWORD 2 */
-#define TB_DP_HDP BIT(6)
-/* DWORD 3 */
-#define TB_DP_HPDC BIT(9)
-/* DWORD 4 */
-#define TB_DP_LOCAL_CAP 0x4
-/* DWORD 5 */
-#define TB_DP_REMOTE_CAP 0x5
+#define ADP_DP_CS_0 0x00
+#define ADP_DP_CS_0_VIDEO_HOPID_MASK GENMASK(26, 16)
+#define ADP_DP_CS_0_VIDEO_HOPID_SHIFT 16
+#define ADP_DP_CS_0_AE BIT(30)
+#define ADP_DP_CS_0_VE BIT(31)
+#define ADP_DP_CS_1_AUX_TX_HOPID_MASK GENMASK(10, 0)
+#define ADP_DP_CS_1_AUX_RX_HOPID_MASK GENMASK(21, 11)
+#define ADP_DP_CS_1_AUX_RX_HOPID_SHIFT 11
+#define ADP_DP_CS_2 0x02
+#define ADP_DP_CS_2_HDP BIT(6)
+#define ADP_DP_CS_3 0x03
+#define ADP_DP_CS_3_HDPC BIT(9)
+#define DP_LOCAL_CAP 0x04
+#define DP_REMOTE_CAP 0x05
/* PCIe adapter registers */
#define ADP_PCIE_CS_0 0x00
diff --git a/drivers/thunderbolt/tunnel.c b/drivers/thunderbolt/tunnel.c
index 2f728029c12d..382331d71c28 100644
--- a/drivers/thunderbolt/tunnel.c
+++ b/drivers/thunderbolt/tunnel.c
@@ -241,23 +241,23 @@ static int tb_dp_xchg_caps(struct tb_tunnel *tunnel)
/* Read both DP_LOCAL_CAP registers */
ret = tb_port_read(in, &in_dp_cap, TB_CFG_PORT,
- in->cap_adap + TB_DP_LOCAL_CAP, 1);
+ in->cap_adap + DP_LOCAL_CAP, 1);
if (ret)
return ret;
ret = tb_port_read(out, &out_dp_cap, TB_CFG_PORT,
- out->cap_adap + TB_DP_LOCAL_CAP, 1);
+ out->cap_adap + DP_LOCAL_CAP, 1);
if (ret)
return ret;
/* Write IN local caps to OUT remote caps */
ret = tb_port_write(out, &in_dp_cap, TB_CFG_PORT,
- out->cap_adap + TB_DP_REMOTE_CAP, 1);
+ out->cap_adap + DP_REMOTE_CAP, 1);
if (ret)
return ret;
return tb_port_write(in, &out_dp_cap, TB_CFG_PORT,
- in->cap_adap + TB_DP_REMOTE_CAP, 1);
+ in->cap_adap + DP_REMOTE_CAP, 1);
}
static int tb_dp_activate(struct tb_tunnel *tunnel, bool active)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.