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path: root/drivers/gpu/drm/tiny/gm12u320.c
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Diffstat (limited to 'drivers/gpu/drm/tiny/gm12u320.c')
-rw-r--r--drivers/gpu/drm/tiny/gm12u320.c160
1 files changed, 85 insertions, 75 deletions
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index cc397671f689..d73dfebb4353 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/drivers/gpu/drm/tiny/gm12u320.c
@@ -3,24 +3,29 @@
* Copyright 2019 Hans de Goede <hdegoede@redhat.com>
*/
-#include <linux/dma-buf.h>
#include <linux/module.h>
+#include <linux/pm.h>
#include <linux/usb.h>
+#include <drm/clients/drm_client_setup.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_atomic_state_helper.h>
#include <drm/drm_connector.h>
#include <drm/drm_damage_helper.h>
#include <drm/drm_drv.h>
-#include <drm/drm_fb_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_fbdev_shmem.h>
#include <drm/drm_file.h>
#include <drm/drm_format_helper.h>
#include <drm/drm_fourcc.h>
-#include <drm/drm_gem_shmem_helper.h>
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_ioctl.h>
#include <drm/drm_managed.h>
#include <drm/drm_modeset_helper_vtables.h>
+#include <drm/drm_print.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_simple_kms_helper.h>
@@ -30,7 +35,6 @@ MODULE_PARM_DESC(eco_mode, "Turn on Eco mode (less bright, more silent)");
#define DRIVER_NAME "gm12u320"
#define DRIVER_DESC "Grain Media GM12U320 USB projector display"
-#define DRIVER_DATE "2019"
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 0
@@ -45,7 +49,7 @@ MODULE_PARM_DESC(eco_mode, "Turn on Eco mode (less bright, more silent)");
#define GM12U320_BLOCK_COUNT 20
#define GM12U320_ERR(fmt, ...) \
- DRM_DEV_ERROR(&gm12u320->udev->dev, fmt, ##__VA_ARGS__)
+ DRM_DEV_ERROR(gm12u320->dev.dev, fmt, ##__VA_ARGS__)
#define MISC_RCV_EPT 1
#define DATA_RCV_EPT 2
@@ -67,10 +71,10 @@ MODULE_PARM_DESC(eco_mode, "Turn on Eco mode (less bright, more silent)");
#define READ_STATUS_SIZE 13
#define MISC_VALUE_SIZE 4
-#define CMD_TIMEOUT msecs_to_jiffies(200)
-#define DATA_TIMEOUT msecs_to_jiffies(1000)
-#define IDLE_TIMEOUT msecs_to_jiffies(2000)
-#define FIRST_FRAME_TIMEOUT msecs_to_jiffies(2000)
+#define CMD_TIMEOUT 200
+#define DATA_TIMEOUT 1000
+#define IDLE_TIMEOUT 2000
+#define FIRST_FRAME_TIMEOUT 2000
#define MISC_REQ_GET_SET_ECO_A 0xff
#define MISC_REQ_GET_SET_ECO_B 0x35
@@ -85,7 +89,6 @@ struct gm12u320_device {
struct drm_device dev;
struct drm_simple_display_pipe pipe;
struct drm_connector conn;
- struct usb_device *udev;
unsigned char *cmd_buf;
unsigned char *data_buf[GM12U320_BLOCK_COUNT];
struct {
@@ -95,6 +98,7 @@ struct gm12u320_device {
struct drm_rect rect;
int frame;
int draw_status_timeout;
+ struct iosys_map src_map;
} fb_update;
};
@@ -155,6 +159,11 @@ static const char data_block_footer[DATA_BLOCK_FOOTER_SIZE] = {
0x80, 0x00, 0x00, 0x4f
};
+static inline struct usb_device *gm12u320_to_usb_device(struct gm12u320_device *gm12u320)
+{
+ return interface_to_usbdev(to_usb_interface(gm12u320->dev.dev));
+}
+
static int gm12u320_usb_alloc(struct gm12u320_device *gm12u320)
{
int i, block_size;
@@ -191,6 +200,7 @@ static int gm12u320_misc_request(struct gm12u320_device *gm12u320,
u8 req_a, u8 req_b,
u8 arg_a, u8 arg_b, u8 arg_c, u8 arg_d)
{
+ struct usb_device *udev = gm12u320_to_usb_device(gm12u320);
int ret, len;
memcpy(gm12u320->cmd_buf, &cmd_misc, CMD_SIZE);
@@ -202,8 +212,7 @@ static int gm12u320_misc_request(struct gm12u320_device *gm12u320,
gm12u320->cmd_buf[25] = arg_d;
/* Send request */
- ret = usb_bulk_msg(gm12u320->udev,
- usb_sndbulkpipe(gm12u320->udev, MISC_SND_EPT),
+ ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, MISC_SND_EPT),
gm12u320->cmd_buf, CMD_SIZE, &len, CMD_TIMEOUT);
if (ret || len != CMD_SIZE) {
GM12U320_ERR("Misc. req. error %d\n", ret);
@@ -211,8 +220,7 @@ static int gm12u320_misc_request(struct gm12u320_device *gm12u320,
}
/* Read value */
- ret = usb_bulk_msg(gm12u320->udev,
- usb_rcvbulkpipe(gm12u320->udev, MISC_RCV_EPT),
+ ret = usb_bulk_msg(udev, usb_rcvbulkpipe(udev, MISC_RCV_EPT),
gm12u320->cmd_buf, MISC_VALUE_SIZE, &len,
DATA_TIMEOUT);
if (ret || len != MISC_VALUE_SIZE) {
@@ -222,8 +230,7 @@ static int gm12u320_misc_request(struct gm12u320_device *gm12u320,
/* cmd_buf[0] now contains the read value, which we don't use */
/* Read status */
- ret = usb_bulk_msg(gm12u320->udev,
- usb_rcvbulkpipe(gm12u320->udev, MISC_RCV_EPT),
+ ret = usb_bulk_msg(udev, usb_rcvbulkpipe(udev, MISC_RCV_EPT),
gm12u320->cmd_buf, READ_STATUS_SIZE, &len,
CMD_TIMEOUT);
if (ret || len != READ_STATUS_SIZE) {
@@ -261,22 +268,14 @@ static void gm12u320_copy_fb_to_blocks(struct gm12u320_device *gm12u320)
x2 = gm12u320->fb_update.rect.x2;
y1 = gm12u320->fb_update.rect.y1;
y2 = gm12u320->fb_update.rect.y2;
+ vaddr = gm12u320->fb_update.src_map.vaddr; /* TODO: Use mapping abstraction properly */
- vaddr = drm_gem_shmem_vmap(fb->obj[0]);
- if (IS_ERR(vaddr)) {
- GM12U320_ERR("failed to vmap fb: %ld\n", PTR_ERR(vaddr));
+ ret = drm_gem_fb_begin_cpu_access(fb, DMA_FROM_DEVICE);
+ if (ret) {
+ GM12U320_ERR("drm_gem_fb_begin_cpu_access err: %d\n", ret);
goto put_fb;
}
- if (fb->obj[0]->import_attach) {
- ret = dma_buf_begin_cpu_access(
- fb->obj[0]->import_attach->dmabuf, DMA_FROM_DEVICE);
- if (ret) {
- GM12U320_ERR("dma_buf_begin_cpu_access err: %d\n", ret);
- goto vunmap;
- }
- }
-
src = vaddr + y1 * fb->pitches[0] + x1 * 4;
x1 += (GM12U320_REAL_WIDTH - GM12U320_USER_WIDTH) / 2;
@@ -311,14 +310,7 @@ static void gm12u320_copy_fb_to_blocks(struct gm12u320_device *gm12u320)
src += fb->pitches[0];
}
- if (fb->obj[0]->import_attach) {
- ret = dma_buf_end_cpu_access(fb->obj[0]->import_attach->dmabuf,
- DMA_FROM_DEVICE);
- if (ret)
- GM12U320_ERR("dma_buf_end_cpu_access err: %d\n", ret);
- }
-vunmap:
- drm_gem_shmem_vunmap(fb->obj[0], vaddr);
+ drm_gem_fb_end_cpu_access(fb, DMA_FROM_DEVICE);
put_fb:
drm_framebuffer_put(fb);
gm12u320->fb_update.fb = NULL;
@@ -331,6 +323,7 @@ static void gm12u320_fb_update_work(struct work_struct *work)
struct gm12u320_device *gm12u320 =
container_of(to_delayed_work(work), struct gm12u320_device,
fb_update.work);
+ struct usb_device *udev = gm12u320_to_usb_device(gm12u320);
int block, block_size, len;
int ret = 0;
@@ -350,43 +343,41 @@ static void gm12u320_fb_update_work(struct work_struct *work)
gm12u320->cmd_buf[21] =
block | (gm12u320->fb_update.frame << 7);
- ret = usb_bulk_msg(gm12u320->udev,
- usb_sndbulkpipe(gm12u320->udev, DATA_SND_EPT),
- gm12u320->cmd_buf, CMD_SIZE, &len,
- CMD_TIMEOUT);
+ ret = usb_bulk_msg(udev,
+ usb_sndbulkpipe(udev, DATA_SND_EPT),
+ gm12u320->cmd_buf, CMD_SIZE, &len,
+ CMD_TIMEOUT);
if (ret || len != CMD_SIZE)
goto err;
/* Send data block to device */
- ret = usb_bulk_msg(gm12u320->udev,
- usb_sndbulkpipe(gm12u320->udev, DATA_SND_EPT),
- gm12u320->data_buf[block], block_size,
- &len, DATA_TIMEOUT);
+ ret = usb_bulk_msg(udev,
+ usb_sndbulkpipe(udev, DATA_SND_EPT),
+ gm12u320->data_buf[block], block_size,
+ &len, DATA_TIMEOUT);
if (ret || len != block_size)
goto err;
/* Read status */
- ret = usb_bulk_msg(gm12u320->udev,
- usb_rcvbulkpipe(gm12u320->udev, DATA_RCV_EPT),
- gm12u320->cmd_buf, READ_STATUS_SIZE, &len,
- CMD_TIMEOUT);
+ ret = usb_bulk_msg(udev,
+ usb_rcvbulkpipe(udev, DATA_RCV_EPT),
+ gm12u320->cmd_buf, READ_STATUS_SIZE, &len,
+ CMD_TIMEOUT);
if (ret || len != READ_STATUS_SIZE)
goto err;
}
/* Send draw command to device */
memcpy(gm12u320->cmd_buf, cmd_draw, CMD_SIZE);
- ret = usb_bulk_msg(gm12u320->udev,
- usb_sndbulkpipe(gm12u320->udev, DATA_SND_EPT),
- gm12u320->cmd_buf, CMD_SIZE, &len, CMD_TIMEOUT);
+ ret = usb_bulk_msg(udev, usb_sndbulkpipe(udev, DATA_SND_EPT),
+ gm12u320->cmd_buf, CMD_SIZE, &len, CMD_TIMEOUT);
if (ret || len != CMD_SIZE)
goto err;
/* Read status */
- ret = usb_bulk_msg(gm12u320->udev,
- usb_rcvbulkpipe(gm12u320->udev, DATA_RCV_EPT),
- gm12u320->cmd_buf, READ_STATUS_SIZE, &len,
- gm12u320->fb_update.draw_status_timeout);
+ ret = usb_bulk_msg(udev, usb_rcvbulkpipe(udev, DATA_RCV_EPT),
+ gm12u320->cmd_buf, READ_STATUS_SIZE, &len,
+ gm12u320->fb_update.draw_status_timeout);
if (ret || len != READ_STATUS_SIZE)
goto err;
@@ -398,7 +389,7 @@ static void gm12u320_fb_update_work(struct work_struct *work)
* switches back to showing its logo.
*/
queue_delayed_work(system_long_wq, &gm12u320->fb_update.work,
- IDLE_TIMEOUT);
+ msecs_to_jiffies(IDLE_TIMEOUT));
return;
err:
@@ -408,6 +399,7 @@ err:
}
static void gm12u320_fb_mark_dirty(struct drm_framebuffer *fb,
+ const struct iosys_map *map,
struct drm_rect *dirty)
{
struct gm12u320_device *gm12u320 = to_gm12u320(fb->dev);
@@ -421,6 +413,7 @@ static void gm12u320_fb_mark_dirty(struct drm_framebuffer *fb,
drm_framebuffer_get(fb);
gm12u320->fb_update.fb = fb;
gm12u320->fb_update.rect = *dirty;
+ gm12u320->fb_update.src_map = *map;
wakeup = true;
} else {
struct drm_rect *rect = &gm12u320->fb_update.rect;
@@ -449,6 +442,7 @@ static void gm12u320_stop_fb_update(struct gm12u320_device *gm12u320)
mutex_lock(&gm12u320->fb_update.lock);
old_fb = gm12u320->fb_update.fb;
gm12u320->fb_update.fb = NULL;
+ iosys_map_clear(&gm12u320->fb_update.src_map);
mutex_unlock(&gm12u320->fb_update.lock);
drm_framebuffer_put(old_fb);
@@ -470,7 +464,7 @@ static int gm12u320_set_ecomode(struct gm12u320_device *gm12u320)
* Note this assumes this driver is only ever used with the Acer C120, if we
* add support for other devices the vendor and model should be parameterized.
*/
-static struct edid gm12u320_edid = {
+static const struct edid gm12u320_edid = {
.header = { 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 },
.mfg_id = { 0x04, 0x72 }, /* "ACR" */
.prod_code = { 0x20, 0xc1 }, /* C120h */
@@ -529,8 +523,15 @@ static struct edid gm12u320_edid = {
static int gm12u320_conn_get_modes(struct drm_connector *connector)
{
- drm_connector_update_edid_property(connector, &gm12u320_edid);
- return drm_add_edid_modes(connector, &gm12u320_edid);
+ const struct drm_edid *drm_edid;
+ int count;
+
+ drm_edid = drm_edid_alloc(&gm12u320_edid, sizeof(gm12u320_edid));
+ drm_edid_connector_update(connector, drm_edid);
+ count = drm_edid_connector_add_modes(connector);
+ drm_edid_free(drm_edid);
+
+ return count;
}
static const struct drm_connector_helper_funcs gm12u320_conn_helper_funcs = {
@@ -561,9 +562,10 @@ static void gm12u320_pipe_enable(struct drm_simple_display_pipe *pipe,
{
struct drm_rect rect = { 0, 0, GM12U320_USER_WIDTH, GM12U320_HEIGHT };
struct gm12u320_device *gm12u320 = to_gm12u320(pipe->crtc.dev);
+ struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(plane_state);
gm12u320->fb_update.draw_status_timeout = FIRST_FRAME_TIMEOUT;
- gm12u320_fb_mark_dirty(plane_state->fb, &rect);
+ gm12u320_fb_mark_dirty(plane_state->fb, &shadow_plane_state->data[0], &rect);
}
static void gm12u320_pipe_disable(struct drm_simple_display_pipe *pipe)
@@ -577,16 +579,18 @@ static void gm12u320_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
struct drm_plane_state *state = pipe->plane.state;
+ struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(state);
struct drm_rect rect;
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
- gm12u320_fb_mark_dirty(pipe->plane.state->fb, &rect);
+ gm12u320_fb_mark_dirty(state->fb, &shadow_plane_state->data[0], &rect);
}
static const struct drm_simple_display_pipe_funcs gm12u320_pipe_funcs = {
.enable = gm12u320_pipe_enable,
.disable = gm12u320_pipe_disable,
.update = gm12u320_pipe_update,
+ DRM_GEM_SIMPLE_DISPLAY_PIPE_SHADOW_PLANE_FUNCS,
};
static const uint32_t gm12u320_pipe_formats[] = {
@@ -600,17 +604,17 @@ static const uint64_t gm12u320_pipe_modifiers[] = {
DEFINE_DRM_GEM_FOPS(gm12u320_fops);
-static struct drm_driver gm12u320_drm_driver = {
+static const struct drm_driver gm12u320_drm_driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
- .date = DRIVER_DATE,
.major = DRIVER_MAJOR,
.minor = DRIVER_MINOR,
.fops = &gm12u320_fops,
DRM_GEM_SHMEM_DRIVER_OPS,
+ DRM_FBDEV_SHMEM_DRIVER_OPS,
};
static const struct drm_mode_config_funcs gm12u320_mode_config_funcs = {
@@ -624,6 +628,7 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
{
struct gm12u320_device *gm12u320;
struct drm_device *dev;
+ struct device *dma_dev;
int ret;
/*
@@ -637,13 +642,19 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
struct gm12u320_device, dev);
if (IS_ERR(gm12u320))
return PTR_ERR(gm12u320);
+ dev = &gm12u320->dev;
+
+ dma_dev = usb_intf_get_dma_device(interface);
+ if (dma_dev) {
+ drm_dev_set_dma_dev(dev, dma_dev);
+ put_device(dma_dev);
+ } else {
+ drm_warn(dev, "buffer sharing not supported"); /* not an error */
+ }
- gm12u320->udev = interface_to_usbdev(interface);
INIT_DELAYED_WORK(&gm12u320->fb_update.work, gm12u320_fb_update_work);
mutex_init(&gm12u320->fb_update.lock);
- dev = &gm12u320->dev;
-
ret = drmm_mode_config_init(dev);
if (ret)
return ret;
@@ -683,7 +694,7 @@ static int gm12u320_usb_probe(struct usb_interface *interface,
if (ret)
return ret;
- drm_fbdev_generic_setup(dev, 0);
+ drm_client_setup(dev, NULL);
return 0;
}
@@ -696,15 +707,15 @@ static void gm12u320_usb_disconnect(struct usb_interface *interface)
drm_atomic_helper_shutdown(dev);
}
-static __maybe_unused int gm12u320_suspend(struct usb_interface *interface,
- pm_message_t message)
+static int gm12u320_suspend(struct usb_interface *interface,
+ pm_message_t message)
{
struct drm_device *dev = usb_get_intfdata(interface);
return drm_mode_config_helper_suspend(dev);
}
-static __maybe_unused int gm12u320_resume(struct usb_interface *interface)
+static int gm12u320_resume(struct usb_interface *interface)
{
struct drm_device *dev = usb_get_intfdata(interface);
struct gm12u320_device *gm12u320 = to_gm12u320(dev);
@@ -725,13 +736,12 @@ static struct usb_driver gm12u320_usb_driver = {
.probe = gm12u320_usb_probe,
.disconnect = gm12u320_usb_disconnect,
.id_table = id_table,
-#ifdef CONFIG_PM
- .suspend = gm12u320_suspend,
- .resume = gm12u320_resume,
- .reset_resume = gm12u320_resume,
-#endif
+ .suspend = pm_ptr(gm12u320_suspend),
+ .resume = pm_ptr(gm12u320_resume),
+ .reset_resume = pm_ptr(gm12u320_resume),
};
module_usb_driver(gm12u320_usb_driver);
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_DESCRIPTION("GM12U320 driver for USB projectors");
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-12-25 18:18:37 +0000