From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/gpu/drm/vc4/vc4_txp.c | 185 ++++++++++++++++++++++++++++++++++------------
1 files changed, 137 insertions(+), 48 deletions(-)
diff --git a/kernel/drivers/gpu/drm/vc4/vc4_txp.c b/kernel/drivers/gpu/drm/vc4/vc4_txp.c
index c98b165..f8fa09d 100644
--- a/kernel/drivers/gpu/drm/vc4/vc4_txp.c
+++ b/kernel/drivers/gpu/drm/vc4/vc4_txp.c
@@ -7,17 +7,20 @@
* Boris Brezillon <boris.brezillon@bootlin.com>
*/
-#include <drm/drm_atomic_helper.h>
-#include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_edid.h>
-#include <drm/drm_panel.h>
-#include <drm/drm_writeback.h>
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/of_graph.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+#include <drm/drm_writeback.h>
#include "vc4_drv.h"
#include "vc4_regs.h"
@@ -143,11 +146,14 @@
#define TXP_WRITE(offset, val) writel(val, txp->regs + (offset))
struct vc4_txp {
+ struct vc4_crtc base;
+
struct platform_device *pdev;
struct drm_writeback_connector connector;
void __iomem *regs;
+ struct debugfs_regset32 regset;
};
static inline struct vc4_txp *encoder_to_vc4_txp(struct drm_encoder *encoder)
@@ -160,39 +166,13 @@
return container_of(conn, struct vc4_txp, connector.base);
}
-#define TXP_REG(reg) { reg, #reg }
-static const struct {
- u32 reg;
- const char *name;
-} txp_regs[] = {
- TXP_REG(TXP_DST_PTR),
- TXP_REG(TXP_DST_PITCH),
- TXP_REG(TXP_DIM),
- TXP_REG(TXP_DST_CTRL),
- TXP_REG(TXP_PROGRESS),
+static const struct debugfs_reg32 txp_regs[] = {
+ VC4_REG32(TXP_DST_PTR),
+ VC4_REG32(TXP_DST_PITCH),
+ VC4_REG32(TXP_DIM),
+ VC4_REG32(TXP_DST_CTRL),
+ VC4_REG32(TXP_PROGRESS),
};
-
-#ifdef CONFIG_DEBUG_FS
-int vc4_txp_debugfs_regs(struct seq_file *m, void *unused)
-{
- struct drm_info_node *node = (struct drm_info_node *)m->private;
- struct drm_device *dev = node->minor->dev;
- struct vc4_dev *vc4 = to_vc4_dev(dev);
- struct vc4_txp *txp = vc4->txp;
- int i;
-
- if (!txp)
- return 0;
-
- for (i = 0; i < ARRAY_SIZE(txp_regs); i++) {
- seq_printf(m, "%s (0x%04x): 0x%08x\n",
- txp_regs[i].name, txp_regs[i].reg,
- TXP_READ(txp_regs[i].reg));
- }
-
- return 0;
-}
-#endif
static int vc4_txp_connector_get_modes(struct drm_connector *connector)
{
@@ -245,17 +225,23 @@
TXP_FORMAT_BGRA8888,
};
+static void vc4_txp_armed(struct drm_crtc_state *state)
+{
+ struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
+
+ vc4_state->txp_armed = true;
+}
+
static int vc4_txp_connector_atomic_check(struct drm_connector *conn,
struct drm_atomic_state *state)
{
struct drm_connector_state *conn_state;
struct drm_crtc_state *crtc_state;
- struct drm_gem_cma_object *gem;
struct drm_framebuffer *fb;
int i;
conn_state = drm_atomic_get_new_connector_state(state, conn);
- if (!conn_state->writeback_job || !conn_state->writeback_job->fb)
+ if (!conn_state->writeback_job)
return 0;
crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
@@ -276,13 +262,11 @@
if (i == ARRAY_SIZE(drm_fmts))
return -EINVAL;
- gem = drm_fb_cma_get_gem_obj(fb, 0);
-
/* Pitch must be aligned on 16 bytes. */
if (fb->pitches[0] & GENMASK(3, 0))
return -EINVAL;
- vc4_crtc_txp_armed(crtc_state);
+ vc4_txp_armed(crtc_state);
return 0;
}
@@ -297,8 +281,7 @@
u32 ctrl;
int i;
- if (WARN_ON(!conn_state->writeback_job ||
- !conn_state->writeback_job->fb))
+ if (WARN_ON(!conn_state->writeback_job))
return;
mode = &conn_state->crtc->state->adjusted_mode;
@@ -312,12 +295,18 @@
if (WARN_ON(i == ARRAY_SIZE(drm_fmts)))
return;
- ctrl = TXP_GO | TXP_VSTART_AT_EOF | TXP_EI |
+ ctrl = TXP_GO | TXP_EI |
VC4_SET_FIELD(0xf, TXP_BYTE_ENABLE) |
VC4_SET_FIELD(txp_fmts[i], TXP_FORMAT);
if (fb->format->has_alpha)
ctrl |= TXP_ALPHA_ENABLE;
+ else
+ /*
+ * If TXP_ALPHA_ENABLE isn't set and TXP_ALPHA_INVERT is, the
+ * hardware will force the output padding to be 0xff.
+ */
+ ctrl |= TXP_ALPHA_INVERT;
gem = drm_fb_cma_get_gem_obj(fb, 0);
TXP_WRITE(TXP_DST_PTR, gem->paddr + fb->offsets[0]);
@@ -328,7 +317,7 @@
TXP_WRITE(TXP_DST_CTRL, ctrl);
- drm_writeback_queue_job(&txp->connector, conn_state->writeback_job);
+ drm_writeback_queue_job(&txp->connector, conn_state);
}
static const struct drm_connector_helper_funcs vc4_txp_connector_helper_funcs = {
@@ -382,23 +371,105 @@
.disable = vc4_txp_encoder_disable,
};
+static int vc4_txp_enable_vblank(struct drm_crtc *crtc)
+{
+ return 0;
+}
+
+static void vc4_txp_disable_vblank(struct drm_crtc *crtc) {}
+
+static const struct drm_crtc_funcs vc4_txp_crtc_funcs = {
+ .set_config = drm_atomic_helper_set_config,
+ .destroy = vc4_crtc_destroy,
+ .page_flip = vc4_page_flip,
+ .reset = vc4_crtc_reset,
+ .atomic_duplicate_state = vc4_crtc_duplicate_state,
+ .atomic_destroy_state = vc4_crtc_destroy_state,
+ .gamma_set = drm_atomic_helper_legacy_gamma_set,
+ .enable_vblank = vc4_txp_enable_vblank,
+ .disable_vblank = vc4_txp_disable_vblank,
+};
+
+static int vc4_txp_atomic_check(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(state);
+ int ret;
+
+ ret = vc4_hvs_atomic_check(crtc, state);
+ if (ret)
+ return ret;
+
+ state->no_vblank = true;
+ vc4_state->feed_txp = true;
+
+ return 0;
+}
+
+static void vc4_txp_atomic_enable(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_state)
+{
+ drm_crtc_vblank_on(crtc);
+ vc4_hvs_atomic_enable(crtc, old_state);
+}
+
+static void vc4_txp_atomic_disable(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_state)
+{
+ struct drm_device *dev = crtc->dev;
+
+ /* Disable vblank irq handling before crtc is disabled. */
+ drm_crtc_vblank_off(crtc);
+
+ vc4_hvs_atomic_disable(crtc, old_state);
+
+ /*
+ * Make sure we issue a vblank event after disabling the CRTC if
+ * someone was waiting it.
+ */
+ if (crtc->state->event) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+ drm_crtc_send_vblank_event(crtc, crtc->state->event);
+ crtc->state->event = NULL;
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ }
+}
+
+static const struct drm_crtc_helper_funcs vc4_txp_crtc_helper_funcs = {
+ .atomic_check = vc4_txp_atomic_check,
+ .atomic_flush = vc4_hvs_atomic_flush,
+ .atomic_enable = vc4_txp_atomic_enable,
+ .atomic_disable = vc4_txp_atomic_disable,
+};
+
static irqreturn_t vc4_txp_interrupt(int irq, void *data)
{
struct vc4_txp *txp = data;
+ struct vc4_crtc *vc4_crtc = &txp->base;
TXP_WRITE(TXP_DST_CTRL, TXP_READ(TXP_DST_CTRL) & ~TXP_EI);
- vc4_crtc_handle_vblank(to_vc4_crtc(txp->connector.base.state->crtc));
+ vc4_crtc_handle_vblank(vc4_crtc);
drm_writeback_signal_completion(&txp->connector, 0);
return IRQ_HANDLED;
}
+
+static const struct vc4_crtc_data vc4_txp_crtc_data = {
+ .hvs_available_channels = BIT(2),
+ .hvs_output = 2,
+};
static int vc4_txp_bind(struct device *dev, struct device *master, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *drm = dev_get_drvdata(master);
struct vc4_dev *vc4 = to_vc4_dev(drm);
+ struct vc4_crtc *vc4_crtc;
struct vc4_txp *txp;
+ struct drm_crtc *crtc;
+ struct drm_encoder *encoder;
int ret, irq;
irq = platform_get_irq(pdev, 0);
@@ -408,12 +479,20 @@
txp = devm_kzalloc(dev, sizeof(*txp), GFP_KERNEL);
if (!txp)
return -ENOMEM;
+ vc4_crtc = &txp->base;
+ crtc = &vc4_crtc->base;
+
+ vc4_crtc->pdev = pdev;
+ vc4_crtc->data = &vc4_txp_crtc_data;
txp->pdev = pdev;
txp->regs = vc4_ioremap_regs(pdev, 0);
if (IS_ERR(txp->regs))
return PTR_ERR(txp->regs);
+ txp->regset.base = txp->regs;
+ txp->regset.regs = txp_regs;
+ txp->regset.nregs = ARRAY_SIZE(txp_regs);
drm_connector_helper_add(&txp->connector.base,
&vc4_txp_connector_helper_funcs);
@@ -424,6 +503,14 @@
if (ret)
return ret;
+ ret = vc4_crtc_init(drm, vc4_crtc,
+ &vc4_txp_crtc_funcs, &vc4_txp_crtc_helper_funcs);
+ if (ret)
+ return ret;
+
+ encoder = &txp->connector.encoder;
+ encoder->possible_crtcs = drm_crtc_mask(crtc);
+
ret = devm_request_irq(dev, irq, vc4_txp_interrupt, 0,
dev_name(dev), txp);
if (ret)
@@ -432,6 +519,8 @@
dev_set_drvdata(dev, txp);
vc4->txp = txp;
+ vc4_debugfs_add_regset32(drm, "txp_regs", &txp->regset);
+
return 0;
}
--
Gitblit v1.6.2