553 lines
15 KiB
C
553 lines
15 KiB
C
/*
|
|
* Copyright (C) 2009 Francisco Jerez.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial
|
|
* portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include "ch7006_priv.h"
|
|
|
|
/* DRM encoder functions */
|
|
|
|
static void ch7006_encoder_set_config(struct drm_encoder *encoder,
|
|
void *params)
|
|
{
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
|
|
priv->params = *(struct ch7006_encoder_params *)params;
|
|
}
|
|
|
|
static void ch7006_encoder_destroy(struct drm_encoder *encoder)
|
|
{
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
|
|
drm_property_destroy(encoder->dev, priv->scale_property);
|
|
|
|
kfree(priv);
|
|
to_encoder_slave(encoder)->slave_priv = NULL;
|
|
|
|
drm_i2c_encoder_destroy(encoder);
|
|
}
|
|
|
|
static void ch7006_encoder_dpms(struct drm_encoder *encoder, int mode)
|
|
{
|
|
struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
struct ch7006_state *state = &priv->state;
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
if (mode == priv->last_dpms)
|
|
return;
|
|
priv->last_dpms = mode;
|
|
|
|
ch7006_setup_power_state(encoder);
|
|
|
|
ch7006_load_reg(client, state, CH7006_POWER);
|
|
}
|
|
|
|
static void ch7006_encoder_save(struct drm_encoder *encoder)
|
|
{
|
|
struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
ch7006_state_save(client, &priv->saved_state);
|
|
}
|
|
|
|
static void ch7006_encoder_restore(struct drm_encoder *encoder)
|
|
{
|
|
struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
ch7006_state_load(client, &priv->saved_state);
|
|
}
|
|
|
|
static bool ch7006_encoder_mode_fixup(struct drm_encoder *encoder,
|
|
const struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
|
|
/* The ch7006 is painfully picky with the input timings so no
|
|
* custom modes for now... */
|
|
|
|
priv->mode = ch7006_lookup_mode(encoder, mode);
|
|
|
|
return !!priv->mode;
|
|
}
|
|
|
|
static int ch7006_encoder_mode_valid(struct drm_encoder *encoder,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
if (ch7006_lookup_mode(encoder, mode))
|
|
return MODE_OK;
|
|
else
|
|
return MODE_BAD;
|
|
}
|
|
|
|
static void ch7006_encoder_mode_set(struct drm_encoder *encoder,
|
|
struct drm_display_mode *drm_mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
struct ch7006_encoder_params *params = &priv->params;
|
|
struct ch7006_state *state = &priv->state;
|
|
uint8_t *regs = state->regs;
|
|
struct ch7006_mode *mode = priv->mode;
|
|
struct ch7006_tv_norm_info *norm = &ch7006_tv_norms[priv->norm];
|
|
int start_active;
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
regs[CH7006_DISPMODE] = norm->dispmode | mode->dispmode;
|
|
regs[CH7006_BWIDTH] = 0;
|
|
regs[CH7006_INPUT_FORMAT] = bitf(CH7006_INPUT_FORMAT_FORMAT,
|
|
params->input_format);
|
|
|
|
regs[CH7006_CLKMODE] = CH7006_CLKMODE_SUBC_LOCK
|
|
| bitf(CH7006_CLKMODE_XCM, params->xcm)
|
|
| bitf(CH7006_CLKMODE_PCM, params->pcm);
|
|
if (params->clock_mode)
|
|
regs[CH7006_CLKMODE] |= CH7006_CLKMODE_MASTER;
|
|
if (params->clock_edge)
|
|
regs[CH7006_CLKMODE] |= CH7006_CLKMODE_POS_EDGE;
|
|
|
|
start_active = (drm_mode->htotal & ~0x7) - (drm_mode->hsync_start & ~0x7);
|
|
regs[CH7006_POV] = bitf(CH7006_POV_START_ACTIVE_8, start_active);
|
|
regs[CH7006_START_ACTIVE] = bitf(CH7006_START_ACTIVE_0, start_active);
|
|
|
|
regs[CH7006_INPUT_SYNC] = 0;
|
|
if (params->sync_direction)
|
|
regs[CH7006_INPUT_SYNC] |= CH7006_INPUT_SYNC_OUTPUT;
|
|
if (params->sync_encoding)
|
|
regs[CH7006_INPUT_SYNC] |= CH7006_INPUT_SYNC_EMBEDDED;
|
|
if (drm_mode->flags & DRM_MODE_FLAG_PVSYNC)
|
|
regs[CH7006_INPUT_SYNC] |= CH7006_INPUT_SYNC_PVSYNC;
|
|
if (drm_mode->flags & DRM_MODE_FLAG_PHSYNC)
|
|
regs[CH7006_INPUT_SYNC] |= CH7006_INPUT_SYNC_PHSYNC;
|
|
|
|
regs[CH7006_DETECT] = 0;
|
|
regs[CH7006_BCLKOUT] = 0;
|
|
|
|
regs[CH7006_SUBC_INC3] = 0;
|
|
if (params->pout_level)
|
|
regs[CH7006_SUBC_INC3] |= CH7006_SUBC_INC3_POUT_3_3V;
|
|
|
|
regs[CH7006_SUBC_INC4] = 0;
|
|
if (params->active_detect)
|
|
regs[CH7006_SUBC_INC4] |= CH7006_SUBC_INC4_DS_INPUT;
|
|
|
|
regs[CH7006_PLL_CONTROL] = priv->saved_state.regs[CH7006_PLL_CONTROL];
|
|
|
|
ch7006_setup_levels(encoder);
|
|
ch7006_setup_subcarrier(encoder);
|
|
ch7006_setup_pll(encoder);
|
|
ch7006_setup_power_state(encoder);
|
|
ch7006_setup_properties(encoder);
|
|
|
|
ch7006_state_load(client, state);
|
|
}
|
|
|
|
static enum drm_connector_status ch7006_encoder_detect(struct drm_encoder *encoder,
|
|
struct drm_connector *connector)
|
|
{
|
|
struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
struct ch7006_state *state = &priv->state;
|
|
int det;
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
ch7006_save_reg(client, state, CH7006_DETECT);
|
|
ch7006_save_reg(client, state, CH7006_POWER);
|
|
ch7006_save_reg(client, state, CH7006_CLKMODE);
|
|
|
|
ch7006_write(client, CH7006_POWER, CH7006_POWER_RESET |
|
|
bitfs(CH7006_POWER_LEVEL, NORMAL));
|
|
ch7006_write(client, CH7006_CLKMODE, CH7006_CLKMODE_MASTER);
|
|
|
|
ch7006_write(client, CH7006_DETECT, CH7006_DETECT_SENSE);
|
|
|
|
ch7006_write(client, CH7006_DETECT, 0);
|
|
|
|
det = ch7006_read(client, CH7006_DETECT);
|
|
|
|
ch7006_load_reg(client, state, CH7006_CLKMODE);
|
|
ch7006_load_reg(client, state, CH7006_POWER);
|
|
ch7006_load_reg(client, state, CH7006_DETECT);
|
|
|
|
if ((det & (CH7006_DETECT_SVIDEO_Y_TEST|
|
|
CH7006_DETECT_SVIDEO_C_TEST|
|
|
CH7006_DETECT_CVBS_TEST)) == 0)
|
|
priv->subconnector = DRM_MODE_SUBCONNECTOR_SCART;
|
|
else if ((det & (CH7006_DETECT_SVIDEO_Y_TEST|
|
|
CH7006_DETECT_SVIDEO_C_TEST)) == 0)
|
|
priv->subconnector = DRM_MODE_SUBCONNECTOR_SVIDEO;
|
|
else if ((det & CH7006_DETECT_CVBS_TEST) == 0)
|
|
priv->subconnector = DRM_MODE_SUBCONNECTOR_Composite;
|
|
else
|
|
priv->subconnector = DRM_MODE_SUBCONNECTOR_Unknown;
|
|
|
|
drm_object_property_set_value(&connector->base,
|
|
encoder->dev->mode_config.tv_subconnector_property,
|
|
priv->subconnector);
|
|
|
|
return priv->subconnector ? connector_status_connected :
|
|
connector_status_disconnected;
|
|
}
|
|
|
|
static int ch7006_encoder_get_modes(struct drm_encoder *encoder,
|
|
struct drm_connector *connector)
|
|
{
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
struct ch7006_mode *mode;
|
|
int n = 0;
|
|
|
|
for (mode = ch7006_modes; mode->mode.clock; mode++) {
|
|
if (~mode->valid_scales & 1<<priv->scale ||
|
|
~mode->valid_norms & 1<<priv->norm)
|
|
continue;
|
|
|
|
drm_mode_probed_add(connector,
|
|
drm_mode_duplicate(encoder->dev, &mode->mode));
|
|
|
|
n++;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
static int ch7006_encoder_create_resources(struct drm_encoder *encoder,
|
|
struct drm_connector *connector)
|
|
{
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
struct drm_device *dev = encoder->dev;
|
|
struct drm_mode_config *conf = &dev->mode_config;
|
|
|
|
drm_mode_create_tv_properties(dev, NUM_TV_NORMS, ch7006_tv_norm_names);
|
|
|
|
priv->scale_property = drm_property_create_range(dev, 0, "scale", 0, 2);
|
|
|
|
drm_object_attach_property(&connector->base, conf->tv_select_subconnector_property,
|
|
priv->select_subconnector);
|
|
drm_object_attach_property(&connector->base, conf->tv_subconnector_property,
|
|
priv->subconnector);
|
|
drm_object_attach_property(&connector->base, conf->tv_left_margin_property,
|
|
priv->hmargin);
|
|
drm_object_attach_property(&connector->base, conf->tv_bottom_margin_property,
|
|
priv->vmargin);
|
|
drm_object_attach_property(&connector->base, conf->tv_mode_property,
|
|
priv->norm);
|
|
drm_object_attach_property(&connector->base, conf->tv_brightness_property,
|
|
priv->brightness);
|
|
drm_object_attach_property(&connector->base, conf->tv_contrast_property,
|
|
priv->contrast);
|
|
drm_object_attach_property(&connector->base, conf->tv_flicker_reduction_property,
|
|
priv->flicker);
|
|
drm_object_attach_property(&connector->base, priv->scale_property,
|
|
priv->scale);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ch7006_encoder_set_property(struct drm_encoder *encoder,
|
|
struct drm_connector *connector,
|
|
struct drm_property *property,
|
|
uint64_t val)
|
|
{
|
|
struct i2c_client *client = drm_i2c_encoder_get_client(encoder);
|
|
struct ch7006_priv *priv = to_ch7006_priv(encoder);
|
|
struct ch7006_state *state = &priv->state;
|
|
struct drm_mode_config *conf = &encoder->dev->mode_config;
|
|
struct drm_crtc *crtc = encoder->crtc;
|
|
bool modes_changed = false;
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
if (property == conf->tv_select_subconnector_property) {
|
|
priv->select_subconnector = val;
|
|
|
|
ch7006_setup_power_state(encoder);
|
|
|
|
ch7006_load_reg(client, state, CH7006_POWER);
|
|
|
|
} else if (property == conf->tv_left_margin_property) {
|
|
priv->hmargin = val;
|
|
|
|
ch7006_setup_properties(encoder);
|
|
|
|
ch7006_load_reg(client, state, CH7006_POV);
|
|
ch7006_load_reg(client, state, CH7006_HPOS);
|
|
|
|
} else if (property == conf->tv_bottom_margin_property) {
|
|
priv->vmargin = val;
|
|
|
|
ch7006_setup_properties(encoder);
|
|
|
|
ch7006_load_reg(client, state, CH7006_POV);
|
|
ch7006_load_reg(client, state, CH7006_VPOS);
|
|
|
|
} else if (property == conf->tv_mode_property) {
|
|
if (connector->dpms != DRM_MODE_DPMS_OFF)
|
|
return -EINVAL;
|
|
|
|
priv->norm = val;
|
|
|
|
modes_changed = true;
|
|
|
|
} else if (property == conf->tv_brightness_property) {
|
|
priv->brightness = val;
|
|
|
|
ch7006_setup_levels(encoder);
|
|
|
|
ch7006_load_reg(client, state, CH7006_BLACK_LEVEL);
|
|
|
|
} else if (property == conf->tv_contrast_property) {
|
|
priv->contrast = val;
|
|
|
|
ch7006_setup_properties(encoder);
|
|
|
|
ch7006_load_reg(client, state, CH7006_CONTRAST);
|
|
|
|
} else if (property == conf->tv_flicker_reduction_property) {
|
|
priv->flicker = val;
|
|
|
|
ch7006_setup_properties(encoder);
|
|
|
|
ch7006_load_reg(client, state, CH7006_FFILTER);
|
|
|
|
} else if (property == priv->scale_property) {
|
|
if (connector->dpms != DRM_MODE_DPMS_OFF)
|
|
return -EINVAL;
|
|
|
|
priv->scale = val;
|
|
|
|
modes_changed = true;
|
|
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (modes_changed) {
|
|
drm_helper_probe_single_connector_modes(connector, 0, 0);
|
|
|
|
/* Disable the crtc to ensure a full modeset is
|
|
* performed whenever it's turned on again. */
|
|
if (crtc) {
|
|
struct drm_mode_set modeset = {
|
|
.crtc = crtc,
|
|
};
|
|
|
|
drm_mode_set_config_internal(&modeset);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct drm_encoder_slave_funcs ch7006_encoder_funcs = {
|
|
.set_config = ch7006_encoder_set_config,
|
|
.destroy = ch7006_encoder_destroy,
|
|
.dpms = ch7006_encoder_dpms,
|
|
.save = ch7006_encoder_save,
|
|
.restore = ch7006_encoder_restore,
|
|
.mode_fixup = ch7006_encoder_mode_fixup,
|
|
.mode_valid = ch7006_encoder_mode_valid,
|
|
.mode_set = ch7006_encoder_mode_set,
|
|
.detect = ch7006_encoder_detect,
|
|
.get_modes = ch7006_encoder_get_modes,
|
|
.create_resources = ch7006_encoder_create_resources,
|
|
.set_property = ch7006_encoder_set_property,
|
|
};
|
|
|
|
|
|
/* I2C driver functions */
|
|
|
|
static int ch7006_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
|
{
|
|
uint8_t addr = CH7006_VERSION_ID;
|
|
uint8_t val;
|
|
int ret;
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
ret = i2c_master_send(client, &addr, sizeof(addr));
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
ret = i2c_master_recv(client, &val, sizeof(val));
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
ch7006_info(client, "Detected version ID: %x\n", val);
|
|
|
|
/* I don't know what this is for, but otherwise I get no
|
|
* signal.
|
|
*/
|
|
ch7006_write(client, 0x3d, 0x0);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
ch7006_err(client, "Error %d reading version ID\n", ret);
|
|
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int ch7006_remove(struct i2c_client *client)
|
|
{
|
|
ch7006_dbg(client, "\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ch7006_resume(struct device *dev)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
ch7006_write(client, 0x3d, 0x0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ch7006_encoder_init(struct i2c_client *client,
|
|
struct drm_device *dev,
|
|
struct drm_encoder_slave *encoder)
|
|
{
|
|
struct ch7006_priv *priv;
|
|
int i;
|
|
|
|
ch7006_dbg(client, "\n");
|
|
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
encoder->slave_priv = priv;
|
|
encoder->slave_funcs = &ch7006_encoder_funcs;
|
|
|
|
priv->norm = TV_NORM_PAL;
|
|
priv->select_subconnector = DRM_MODE_SUBCONNECTOR_Automatic;
|
|
priv->subconnector = DRM_MODE_SUBCONNECTOR_Unknown;
|
|
priv->scale = 1;
|
|
priv->contrast = 50;
|
|
priv->brightness = 50;
|
|
priv->flicker = 50;
|
|
priv->hmargin = 50;
|
|
priv->vmargin = 50;
|
|
priv->last_dpms = -1;
|
|
priv->chip_version = ch7006_read(client, CH7006_VERSION_ID);
|
|
|
|
if (ch7006_tv_norm) {
|
|
for (i = 0; i < NUM_TV_NORMS; i++) {
|
|
if (!strcmp(ch7006_tv_norm_names[i], ch7006_tv_norm)) {
|
|
priv->norm = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == NUM_TV_NORMS)
|
|
ch7006_err(client, "Invalid TV norm setting \"%s\".\n",
|
|
ch7006_tv_norm);
|
|
}
|
|
|
|
if (ch7006_scale >= 0 && ch7006_scale <= 2)
|
|
priv->scale = ch7006_scale;
|
|
else
|
|
ch7006_err(client, "Invalid scale setting \"%d\".\n",
|
|
ch7006_scale);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct i2c_device_id ch7006_ids[] = {
|
|
{ "ch7006", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, ch7006_ids);
|
|
|
|
static const struct dev_pm_ops ch7006_pm_ops = {
|
|
.resume = ch7006_resume,
|
|
};
|
|
|
|
static struct drm_i2c_encoder_driver ch7006_driver = {
|
|
.i2c_driver = {
|
|
.probe = ch7006_probe,
|
|
.remove = ch7006_remove,
|
|
|
|
.driver = {
|
|
.name = "ch7006",
|
|
.pm = &ch7006_pm_ops,
|
|
},
|
|
|
|
.id_table = ch7006_ids,
|
|
},
|
|
|
|
.encoder_init = ch7006_encoder_init,
|
|
};
|
|
|
|
|
|
/* Module initialization */
|
|
|
|
static int __init ch7006_init(void)
|
|
{
|
|
return drm_i2c_encoder_register(THIS_MODULE, &ch7006_driver);
|
|
}
|
|
|
|
static void __exit ch7006_exit(void)
|
|
{
|
|
drm_i2c_encoder_unregister(&ch7006_driver);
|
|
}
|
|
|
|
int ch7006_debug;
|
|
module_param_named(debug, ch7006_debug, int, 0600);
|
|
MODULE_PARM_DESC(debug, "Enable debug output.");
|
|
|
|
char *ch7006_tv_norm;
|
|
module_param_named(tv_norm, ch7006_tv_norm, charp, 0600);
|
|
MODULE_PARM_DESC(tv_norm, "Default TV norm.\n"
|
|
"\t\tSupported: PAL, PAL-M, PAL-N, PAL-Nc, PAL-60, NTSC-M, NTSC-J.\n"
|
|
"\t\tDefault: PAL");
|
|
|
|
int ch7006_scale = 1;
|
|
module_param_named(scale, ch7006_scale, int, 0600);
|
|
MODULE_PARM_DESC(scale, "Default scale.\n"
|
|
"\t\tSupported: 0 -> Select video modes with a higher blanking ratio.\n"
|
|
"\t\t\t1 -> Select default video modes.\n"
|
|
"\t\t\t2 -> Select video modes with a lower blanking ratio.");
|
|
|
|
MODULE_AUTHOR("Francisco Jerez <currojerez@riseup.net>");
|
|
MODULE_DESCRIPTION("Chrontel ch7006 TV encoder driver");
|
|
MODULE_LICENSE("GPL and additional rights");
|
|
|
|
module_init(ch7006_init);
|
|
module_exit(ch7006_exit);
|