Sachin Bhayare | eeb8889 | 2018-01-02 16:36:01 +0530 | [diff] [blame] | 1 | /* Copyright (c) 2010-2018, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #include <linux/bitops.h> |
| 15 | #include <linux/delay.h> |
| 16 | #include <linux/module.h> |
| 17 | #include <linux/mutex.h> |
| 18 | #include <linux/iopoll.h> |
| 19 | #include <linux/of_address.h> |
| 20 | #include <linux/of_gpio.h> |
| 21 | #include <linux/of_platform.h> |
| 22 | #include <linux/types.h> |
| 23 | #include <linux/hdcp_qseecom.h> |
| 24 | #include <linux/clk.h> |
| 25 | |
| 26 | #define REG_DUMP 0 |
| 27 | |
| 28 | #include "mdss_debug.h" |
| 29 | #include "mdss_fb.h" |
| 30 | #include "mdss_hdmi_cec.h" |
| 31 | #include "mdss_hdmi_edid.h" |
| 32 | #include "mdss_hdmi_hdcp.h" |
| 33 | #include "mdss_hdmi_tx.h" |
| 34 | #include "mdss_hdmi_audio.h" |
| 35 | #include "mdss.h" |
| 36 | #include "mdss_panel.h" |
| 37 | #include "mdss_hdmi_mhl.h" |
| 38 | |
| 39 | #define DRV_NAME "hdmi-tx" |
| 40 | #define COMPATIBLE_NAME "qcom,hdmi-tx" |
| 41 | |
| 42 | #define HDMI_TX_EVT_STR(x) #x |
| 43 | #define DEFAULT_VIDEO_RESOLUTION HDMI_VFRMT_640x480p60_4_3 |
| 44 | #define DEFAULT_HDMI_PRIMARY_RESOLUTION HDMI_VFRMT_1920x1080p60_16_9 |
| 45 | |
| 46 | /* HDMI PHY/PLL bit field macros */ |
| 47 | #define SW_RESET BIT(2) |
| 48 | #define SW_RESET_PLL BIT(0) |
| 49 | |
| 50 | #define HPD_DISCONNECT_POLARITY 0 |
| 51 | #define HPD_CONNECT_POLARITY 1 |
| 52 | |
| 53 | /* |
| 54 | * Audio engine may take 1 to 3 sec to shutdown |
| 55 | * in normal cases. To handle worst cases, making |
| 56 | * timeout for audio engine shutdown as 5 sec. |
| 57 | */ |
| 58 | #define AUDIO_POLL_SLEEP_US (5 * 1000) |
| 59 | #define AUDIO_POLL_TIMEOUT_US (AUDIO_POLL_SLEEP_US * 1000) |
| 60 | |
| 61 | #define HDMI_TX_YUV420_24BPP_PCLK_TMDS_CH_RATE_RATIO 2 |
| 62 | #define HDMI_TX_YUV422_24BPP_PCLK_TMDS_CH_RATE_RATIO 1 |
| 63 | #define HDMI_TX_RGB_24BPP_PCLK_TMDS_CH_RATE_RATIO 1 |
| 64 | |
| 65 | #define HDMI_TX_SCRAMBLER_THRESHOLD_RATE_KHZ 340000 |
| 66 | #define HDMI_TX_SCRAMBLER_TIMEOUT_MSEC 200 |
| 67 | |
| 68 | /* Maximum pixel clock rates for hdmi tx */ |
| 69 | #define HDMI_DEFAULT_MAX_PCLK_RATE 148500 |
| 70 | #define HDMI_TX_3_MAX_PCLK_RATE 297000 |
| 71 | #define HDMI_TX_4_MAX_PCLK_RATE 600000 |
| 72 | |
| 73 | #define hdmi_tx_get_fd(x) (x ? hdmi_ctrl->feature_data[ffs(x) - 1] : 0) |
| 74 | #define hdmi_tx_set_fd(x, y) {if (x) hdmi_ctrl->feature_data[ffs(x) - 1] = y; } |
| 75 | |
| 76 | #define MAX_EDID_READ_RETRY 5 |
| 77 | |
| 78 | #define HDMI_TX_MIN_FPS 20000 |
| 79 | #define HDMI_TX_MAX_FPS 120000 |
| 80 | |
| 81 | /* Enable HDCP by default */ |
| 82 | static bool hdcp_feature_on = true; |
| 83 | |
| 84 | /* |
| 85 | * CN represents IT content type, if ITC bit in infoframe data byte 3 |
| 86 | * is set, CN bits will represent content type as below: |
| 87 | * 0b00 Graphics |
| 88 | * 0b01 Photo |
| 89 | * 0b10 Cinema |
| 90 | * 0b11 Game |
| 91 | */ |
| 92 | #define CONFIG_CN_BITS(bits, byte) \ |
| 93 | (byte = (byte & ~(BIT(4) | BIT(5))) |\ |
| 94 | ((bits & (BIT(0) | BIT(1))) << 4)) |
| 95 | |
| 96 | enum hdmi_tx_hpd_states { |
| 97 | HPD_OFF, |
| 98 | HPD_ON, |
| 99 | HPD_ON_CONDITIONAL_MTP, |
| 100 | HPD_DISABLE, |
| 101 | HPD_ENABLE |
| 102 | }; |
| 103 | |
| 104 | static int hdmi_tx_set_mhl_hpd(struct platform_device *pdev, uint8_t on); |
| 105 | static int hdmi_tx_sysfs_enable_hpd(struct hdmi_tx_ctrl *hdmi_ctrl, int on); |
| 106 | static irqreturn_t hdmi_tx_isr(int irq, void *data); |
| 107 | static void hdmi_tx_hpd_off(struct hdmi_tx_ctrl *hdmi_ctrl); |
| 108 | static int hdmi_tx_hpd_on(struct hdmi_tx_ctrl *hdmi_ctrl); |
| 109 | static int hdmi_tx_enable_power(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 110 | enum hdmi_tx_power_module_type module, int enable); |
| 111 | static int hdmi_tx_setup_tmds_clk_rate(struct hdmi_tx_ctrl *hdmi_ctrl); |
| 112 | static void hdmi_tx_fps_work(struct work_struct *work); |
| 113 | |
| 114 | static struct mdss_hw hdmi_tx_hw = { |
| 115 | .hw_ndx = MDSS_HW_HDMI, |
| 116 | .ptr = NULL, |
| 117 | .irq_handler = hdmi_tx_isr, |
| 118 | }; |
| 119 | |
| 120 | static struct dss_gpio hpd_gpio_config[] = { |
| 121 | {0, 1, COMPATIBLE_NAME "-hpd"}, |
| 122 | {0, 1, COMPATIBLE_NAME "-mux-en"}, |
| 123 | {0, 0, COMPATIBLE_NAME "-mux-sel"}, |
| 124 | {0, 1, COMPATIBLE_NAME "-mux-lpm"} |
| 125 | }; |
| 126 | |
| 127 | static struct dss_gpio ddc_gpio_config[] = { |
| 128 | {0, 1, COMPATIBLE_NAME "-ddc-mux-sel"}, |
| 129 | {0, 1, COMPATIBLE_NAME "-ddc-clk"}, |
| 130 | {0, 1, COMPATIBLE_NAME "-ddc-data"} |
| 131 | }; |
| 132 | |
| 133 | static struct dss_gpio core_gpio_config[] = { |
| 134 | }; |
| 135 | |
| 136 | static struct dss_gpio cec_gpio_config[] = { |
| 137 | {0, 1, COMPATIBLE_NAME "-cec"} |
| 138 | }; |
| 139 | |
| 140 | const char *hdmi_pm_name(enum hdmi_tx_power_module_type module) |
| 141 | { |
| 142 | switch (module) { |
| 143 | case HDMI_TX_HPD_PM: return "HDMI_TX_HPD_PM"; |
| 144 | case HDMI_TX_DDC_PM: return "HDMI_TX_DDC_PM"; |
| 145 | case HDMI_TX_CORE_PM: return "HDMI_TX_CORE_PM"; |
| 146 | case HDMI_TX_CEC_PM: return "HDMI_TX_CEC_PM"; |
| 147 | default: return "???"; |
| 148 | } |
| 149 | } /* hdmi_pm_name */ |
| 150 | |
| 151 | static int hdmi_tx_get_version(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 152 | { |
| 153 | int rc; |
| 154 | int reg_val; |
| 155 | struct dss_io_data *io; |
| 156 | |
| 157 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_HPD_PM, true); |
| 158 | if (rc) { |
| 159 | DEV_ERR("%s: Failed to read HDMI version\n", __func__); |
| 160 | goto fail; |
| 161 | } |
| 162 | |
| 163 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 164 | if (!io->base) { |
| 165 | DEV_ERR("%s: core io not inititalized\n", __func__); |
| 166 | rc = -EINVAL; |
| 167 | goto fail; |
| 168 | } |
| 169 | |
| 170 | reg_val = DSS_REG_R(io, HDMI_VERSION); |
| 171 | reg_val = (reg_val & 0xF0000000) >> 28; |
| 172 | hdmi_ctrl->hdmi_tx_ver = reg_val; |
| 173 | |
| 174 | switch (hdmi_ctrl->hdmi_tx_ver) { |
| 175 | case (HDMI_TX_VERSION_3): |
| 176 | hdmi_ctrl->max_pclk_khz = HDMI_TX_3_MAX_PCLK_RATE; |
| 177 | break; |
| 178 | case (HDMI_TX_VERSION_4): |
| 179 | hdmi_ctrl->max_pclk_khz = HDMI_TX_4_MAX_PCLK_RATE; |
| 180 | break; |
| 181 | default: |
| 182 | hdmi_ctrl->max_pclk_khz = HDMI_DEFAULT_MAX_PCLK_RATE; |
| 183 | break; |
| 184 | } |
| 185 | |
| 186 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_HPD_PM, false); |
| 187 | if (rc) { |
| 188 | DEV_ERR("%s: FAILED to disable power\n", __func__); |
| 189 | goto fail; |
| 190 | } |
| 191 | |
| 192 | fail: |
| 193 | return rc; |
| 194 | } |
| 195 | |
| 196 | int register_hdmi_cable_notification(struct hdmi_cable_notify *handler) |
| 197 | { |
| 198 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 199 | struct list_head *pos; |
| 200 | |
| 201 | if (!hdmi_tx_hw.ptr) { |
| 202 | DEV_WARN("%s: HDMI Tx core not ready\n", __func__); |
| 203 | return -EPROBE_DEFER; |
| 204 | } |
| 205 | |
| 206 | if (!handler) { |
| 207 | DEV_ERR("%s: Empty handler\n", __func__); |
| 208 | return -ENODEV; |
| 209 | } |
| 210 | |
| 211 | hdmi_ctrl = (struct hdmi_tx_ctrl *) hdmi_tx_hw.ptr; |
| 212 | |
| 213 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 214 | handler->status = hdmi_ctrl->hpd_state; |
| 215 | list_for_each(pos, &hdmi_ctrl->cable_notify_handlers); |
| 216 | list_add_tail(&handler->link, pos); |
| 217 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 218 | |
| 219 | return handler->status; |
| 220 | } /* register_hdmi_cable_notification */ |
| 221 | |
| 222 | int unregister_hdmi_cable_notification(struct hdmi_cable_notify *handler) |
| 223 | { |
| 224 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 225 | |
| 226 | if (!hdmi_tx_hw.ptr) { |
| 227 | DEV_WARN("%s: HDMI Tx core not ready\n", __func__); |
| 228 | return -ENODEV; |
| 229 | } |
| 230 | |
| 231 | if (!handler) { |
| 232 | DEV_ERR("%s: Empty handler\n", __func__); |
| 233 | return -ENODEV; |
| 234 | } |
| 235 | |
| 236 | hdmi_ctrl = (struct hdmi_tx_ctrl *) hdmi_tx_hw.ptr; |
| 237 | |
| 238 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 239 | list_del(&handler->link); |
| 240 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 241 | |
| 242 | return 0; |
| 243 | } /* unregister_hdmi_cable_notification */ |
| 244 | |
| 245 | static void hdmi_tx_cable_notify_work(struct work_struct *work) |
| 246 | { |
| 247 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 248 | struct hdmi_cable_notify *pos; |
| 249 | |
| 250 | hdmi_ctrl = container_of(work, struct hdmi_tx_ctrl, cable_notify_work); |
| 251 | |
| 252 | if (!hdmi_ctrl) { |
| 253 | DEV_ERR("%s: invalid hdmi data\n", __func__); |
| 254 | return; |
| 255 | } |
| 256 | |
| 257 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 258 | list_for_each_entry(pos, &hdmi_ctrl->cable_notify_handlers, link) { |
| 259 | if (pos->status != hdmi_ctrl->hpd_state) { |
| 260 | pos->status = hdmi_ctrl->hpd_state; |
| 261 | pos->hpd_notify(pos); |
| 262 | } |
| 263 | } |
| 264 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 265 | } /* hdmi_tx_cable_notify_work */ |
| 266 | |
| 267 | static bool hdmi_tx_is_cea_format(int mode) |
| 268 | { |
| 269 | bool cea_fmt; |
| 270 | |
| 271 | if ((mode > 0) && (mode <= HDMI_EVFRMT_END)) |
| 272 | cea_fmt = true; |
| 273 | else |
| 274 | cea_fmt = false; |
| 275 | |
| 276 | DEV_DBG("%s: %s\n", __func__, cea_fmt ? "Yes" : "No"); |
| 277 | |
| 278 | return cea_fmt; |
| 279 | } |
| 280 | |
| 281 | static inline bool hdmi_tx_is_hdcp_enabled(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 282 | { |
| 283 | return hdmi_ctrl->hdcp_feature_on && |
| 284 | (hdmi_ctrl->hdcp14_present || hdmi_ctrl->hdcp22_present) && |
| 285 | hdmi_ctrl->hdcp_ops; |
| 286 | } |
| 287 | |
| 288 | static const char *hdmi_tx_pm_name(enum hdmi_tx_power_module_type module) |
| 289 | { |
| 290 | switch (module) { |
| 291 | case HDMI_TX_HPD_PM: return "HDMI_TX_HPD_PM"; |
| 292 | case HDMI_TX_DDC_PM: return "HDMI_TX_DDC_PM"; |
| 293 | case HDMI_TX_CORE_PM: return "HDMI_TX_CORE_PM"; |
| 294 | case HDMI_TX_CEC_PM: return "HDMI_TX_CEC_PM"; |
| 295 | default: return "???"; |
| 296 | } |
| 297 | } /* hdmi_tx_pm_name */ |
| 298 | |
| 299 | static const char *hdmi_tx_io_name(u32 type) |
| 300 | { |
| 301 | switch (type) { |
| 302 | case HDMI_TX_CORE_IO: return "core_physical"; |
| 303 | case HDMI_TX_QFPROM_IO: return "qfprom_physical"; |
| 304 | case HDMI_TX_HDCP_IO: return "hdcp_physical"; |
| 305 | default: return NULL; |
| 306 | } |
| 307 | } /* hdmi_tx_io_name */ |
| 308 | |
| 309 | static void hdmi_tx_audio_setup(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 310 | { |
| 311 | if (hdmi_ctrl && hdmi_ctrl->audio_ops.on) { |
| 312 | u32 pclk = hdmi_tx_setup_tmds_clk_rate(hdmi_ctrl); |
| 313 | |
| 314 | hdmi_ctrl->audio_ops.on(hdmi_ctrl->audio_data, |
| 315 | pclk, &hdmi_ctrl->audio_params); |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | static inline u32 hdmi_tx_is_dvi_mode(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 320 | { |
| 321 | return hdmi_edid_get_sink_mode( |
| 322 | hdmi_tx_get_fd(HDMI_TX_FEAT_EDID)) ? 0 : 1; |
| 323 | } /* hdmi_tx_is_dvi_mode */ |
| 324 | |
| 325 | static inline bool hdmi_tx_is_panel_on(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 326 | { |
| 327 | return hdmi_ctrl->hpd_state && hdmi_ctrl->panel_power_on; |
| 328 | } |
| 329 | |
| 330 | static inline bool hdmi_tx_is_cec_wakeup_en(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 331 | { |
| 332 | void *fd = NULL; |
| 333 | |
| 334 | if (!hdmi_ctrl) |
| 335 | return false; |
| 336 | |
| 337 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_CEC_HW); |
| 338 | |
| 339 | if (!fd) |
| 340 | return false; |
| 341 | |
| 342 | return hdmi_cec_is_wakeup_en(fd); |
| 343 | } |
| 344 | |
| 345 | static inline void hdmi_tx_cec_device_suspend(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 346 | { |
| 347 | void *fd = NULL; |
| 348 | |
| 349 | if (!hdmi_ctrl) |
| 350 | return; |
| 351 | |
| 352 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_CEC_HW); |
| 353 | |
| 354 | if (!fd) |
| 355 | return; |
| 356 | |
| 357 | hdmi_cec_device_suspend(fd, hdmi_ctrl->panel_suspend); |
| 358 | } |
| 359 | |
| 360 | |
| 361 | static inline void hdmi_tx_send_cable_notification( |
| 362 | struct hdmi_tx_ctrl *hdmi_ctrl, int val) |
| 363 | { |
| 364 | int state = 0; |
| 365 | |
| 366 | if (!hdmi_ctrl) { |
| 367 | DEV_ERR("%s: invalid input\n", __func__); |
| 368 | return; |
| 369 | } |
| 370 | state = hdmi_ctrl->sdev.state; |
| 371 | |
Sachin Bhayare | 3d3767e | 2018-01-02 21:10:57 +0530 | [diff] [blame] | 372 | extcon_set_state_sync(&hdmi_ctrl->sdev, EXTCON_DISP_HDMI, state); |
Sachin Bhayare | eeb8889 | 2018-01-02 16:36:01 +0530 | [diff] [blame] | 373 | |
| 374 | DEV_INFO("%s: cable state %s %d\n", __func__, |
| 375 | hdmi_ctrl->sdev.state == state ? |
| 376 | "is same" : "switched to", |
| 377 | hdmi_ctrl->sdev.state); |
| 378 | |
| 379 | /* Notify all registered modules of cable connection status */ |
| 380 | schedule_work(&hdmi_ctrl->cable_notify_work); |
| 381 | } /* hdmi_tx_send_cable_notification */ |
| 382 | |
| 383 | static inline void hdmi_tx_set_audio_switch_node( |
| 384 | struct hdmi_tx_ctrl *hdmi_ctrl, int val) |
| 385 | { |
| 386 | if (hdmi_ctrl && hdmi_ctrl->audio_ops.notify && |
| 387 | !hdmi_tx_is_dvi_mode(hdmi_ctrl)) |
| 388 | hdmi_ctrl->audio_ops.notify(hdmi_ctrl->audio_data, val); |
| 389 | } |
| 390 | |
| 391 | static void hdmi_tx_wait_for_audio_engine(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 392 | { |
| 393 | u64 status = 0; |
| 394 | u32 wait_for_vote = 50; |
| 395 | struct dss_io_data *io = NULL; |
| 396 | |
| 397 | if (!hdmi_ctrl) { |
| 398 | DEV_ERR("%s: invalid input\n", __func__); |
| 399 | return; |
| 400 | } |
| 401 | |
| 402 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 403 | if (!io->base) { |
| 404 | DEV_ERR("%s: core io not inititalized\n", __func__); |
| 405 | return; |
| 406 | } |
| 407 | |
| 408 | /* |
| 409 | * wait for 5 sec max for audio engine to acknowledge if hdmi tx core |
| 410 | * can be safely turned off. Sleep for a reasonable time to make sure |
| 411 | * vote_hdmi_core_on variable is updated properly by audio. |
| 412 | */ |
| 413 | while (hdmi_ctrl->vote_hdmi_core_on && --wait_for_vote) |
| 414 | msleep(100); |
| 415 | |
| 416 | |
| 417 | if (!wait_for_vote) |
| 418 | DEV_ERR("%s: HDMI core still voted for power on\n", __func__); |
| 419 | |
| 420 | if (readl_poll_timeout(io->base + HDMI_AUDIO_PKT_CTRL, status, |
| 421 | (status & BIT(0)) == 0, AUDIO_POLL_SLEEP_US, |
| 422 | AUDIO_POLL_TIMEOUT_US)) |
| 423 | DEV_ERR("%s: Error turning off audio packet transmission.\n", |
| 424 | __func__); |
| 425 | |
| 426 | if (readl_poll_timeout(io->base + HDMI_AUDIO_CFG, status, |
| 427 | (status & BIT(0)) == 0, AUDIO_POLL_SLEEP_US, |
| 428 | AUDIO_POLL_TIMEOUT_US)) |
| 429 | DEV_ERR("%s: Error turning off audio engine.\n", __func__); |
| 430 | } |
| 431 | |
| 432 | static struct hdmi_tx_ctrl *hdmi_tx_get_drvdata_from_panel_data( |
| 433 | struct mdss_panel_data *mpd) |
| 434 | { |
| 435 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 436 | |
| 437 | if (mpd) { |
| 438 | hdmi_ctrl = container_of(mpd, struct hdmi_tx_ctrl, panel_data); |
| 439 | if (!hdmi_ctrl) |
| 440 | DEV_ERR("%s: hdmi_ctrl = NULL\n", __func__); |
| 441 | } else { |
| 442 | DEV_ERR("%s: mdss_panel_data = NULL\n", __func__); |
| 443 | } |
| 444 | return hdmi_ctrl; |
| 445 | } /* hdmi_tx_get_drvdata_from_panel_data */ |
| 446 | |
| 447 | static struct hdmi_tx_ctrl *hdmi_tx_get_drvdata_from_sysfs_dev( |
| 448 | struct device *device) |
| 449 | { |
| 450 | struct msm_fb_data_type *mfd = NULL; |
| 451 | struct mdss_panel_data *panel_data = NULL; |
| 452 | struct fb_info *fbi = dev_get_drvdata(device); |
| 453 | |
| 454 | if (fbi) { |
| 455 | mfd = (struct msm_fb_data_type *)fbi->par; |
| 456 | panel_data = dev_get_platdata(&mfd->pdev->dev); |
| 457 | |
| 458 | return hdmi_tx_get_drvdata_from_panel_data(panel_data); |
| 459 | } |
| 460 | DEV_ERR("%s: fbi = NULL\n", __func__); |
| 461 | return NULL; |
| 462 | } /* hdmi_tx_get_drvdata_from_sysfs_dev */ |
| 463 | |
| 464 | /* todo: Fix this. Right now this is declared in hdmi_util.h */ |
| 465 | void *hdmi_get_featuredata_from_sysfs_dev(struct device *device, |
| 466 | u32 feature_type) |
| 467 | { |
| 468 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 469 | |
| 470 | if (!device || feature_type >= HDMI_TX_FEAT_MAX) { |
| 471 | DEV_ERR("%s: invalid input\n", __func__); |
| 472 | return NULL; |
| 473 | } |
| 474 | |
| 475 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(device); |
| 476 | if (hdmi_ctrl) |
| 477 | return hdmi_tx_get_fd(feature_type); |
| 478 | else |
| 479 | return NULL; |
| 480 | |
| 481 | } /* hdmi_tx_get_featuredata_from_sysfs_dev */ |
| 482 | EXPORT_SYMBOL(hdmi_get_featuredata_from_sysfs_dev); |
| 483 | |
| 484 | static int hdmi_tx_config_5v(struct hdmi_tx_ctrl *hdmi_ctrl, bool enable) |
| 485 | { |
| 486 | struct dss_module_power *pd = NULL; |
| 487 | int ret = 0; |
| 488 | |
| 489 | if (!hdmi_ctrl) { |
| 490 | DEV_ERR("%s: invalid input\n", __func__); |
| 491 | ret = -EINVAL; |
| 492 | goto end; |
| 493 | } |
| 494 | |
| 495 | pd = &hdmi_ctrl->pdata.power_data[HDMI_TX_HPD_PM]; |
| 496 | if (!pd || !pd->gpio_config) { |
| 497 | DEV_ERR("%s: Error: invalid power data\n", __func__); |
| 498 | ret = -EINVAL; |
| 499 | goto end; |
| 500 | } |
| 501 | |
| 502 | gpio_set_value(pd->gpio_config->gpio, enable); |
| 503 | end: |
| 504 | return ret; |
| 505 | } |
| 506 | |
| 507 | static ssize_t hdmi_tx_sysfs_rda_connected(struct device *dev, |
| 508 | struct device_attribute *attr, char *buf) |
| 509 | { |
| 510 | ssize_t ret; |
| 511 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 512 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 513 | |
| 514 | if (!hdmi_ctrl) { |
| 515 | DEV_ERR("%s: invalid input\n", __func__); |
| 516 | return -EINVAL; |
| 517 | } |
| 518 | |
| 519 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 520 | ret = snprintf(buf, PAGE_SIZE, "%d\n", hdmi_ctrl->hpd_state); |
| 521 | DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->hpd_state); |
| 522 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 523 | |
| 524 | return ret; |
| 525 | } /* hdmi_tx_sysfs_rda_connected */ |
| 526 | |
| 527 | static ssize_t hdmi_tx_sysfs_wta_edid(struct device *dev, |
| 528 | struct device_attribute *attr, const char *buf, size_t count) |
| 529 | { |
| 530 | int ret = 0; |
| 531 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 532 | int i = 0; |
| 533 | const char *buf_t = buf; |
| 534 | const int char_to_nib = 2; |
| 535 | int edid_size = count / char_to_nib; |
| 536 | |
| 537 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 538 | |
| 539 | if (!hdmi_ctrl || !hdmi_ctrl->edid_buf) { |
| 540 | DEV_ERR("%s: invalid data\n", __func__); |
| 541 | return -EINVAL; |
| 542 | } |
| 543 | |
| 544 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 545 | if ((edid_size < EDID_BLOCK_SIZE) || |
| 546 | (edid_size > hdmi_ctrl->edid_buf_size)) { |
| 547 | DEV_DBG("%s: disabling custom edid\n", __func__); |
| 548 | |
| 549 | ret = -EINVAL; |
| 550 | hdmi_ctrl->custom_edid = false; |
| 551 | goto end; |
| 552 | } |
| 553 | |
| 554 | memset(hdmi_ctrl->edid_buf, 0, hdmi_ctrl->edid_buf_size); |
| 555 | |
| 556 | while (edid_size--) { |
| 557 | char t[char_to_nib + 1]; |
| 558 | int d; |
| 559 | |
| 560 | memcpy(t, buf_t, sizeof(char) * char_to_nib); |
| 561 | t[char_to_nib] = '\0'; |
| 562 | |
| 563 | ret = kstrtoint(t, 16, &d); |
| 564 | if (ret) { |
| 565 | pr_err("kstrtoint error %d\n", ret); |
| 566 | goto end; |
| 567 | } |
| 568 | |
| 569 | memcpy(hdmi_ctrl->edid_buf + i++, &d, |
| 570 | sizeof(*hdmi_ctrl->edid_buf)); |
| 571 | |
| 572 | buf_t += char_to_nib; |
| 573 | } |
| 574 | |
| 575 | ret = strnlen(buf, PAGE_SIZE); |
| 576 | hdmi_ctrl->custom_edid = true; |
| 577 | end: |
| 578 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 579 | return ret; |
| 580 | } |
| 581 | |
| 582 | static ssize_t hdmi_tx_sysfs_rda_edid(struct device *dev, |
| 583 | struct device_attribute *attr, char *buf) |
| 584 | { |
| 585 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 586 | u32 size; |
| 587 | u32 cea_blks; |
| 588 | |
| 589 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 590 | |
| 591 | if (!hdmi_ctrl || !hdmi_ctrl->edid_buf) { |
| 592 | DEV_ERR("%s: invalid data\n", __func__); |
| 593 | return -EINVAL; |
| 594 | } |
| 595 | |
| 596 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 597 | cea_blks = hdmi_ctrl->edid_buf[EDID_BLOCK_SIZE - 2]; |
| 598 | if (cea_blks >= MAX_EDID_BLOCKS) { |
| 599 | DEV_ERR("%s: invalid cea blocks\n", __func__); |
| 600 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 601 | return -EINVAL; |
| 602 | } |
| 603 | size = (cea_blks + 1) * EDID_BLOCK_SIZE; |
| 604 | size = min_t(u32, size, PAGE_SIZE); |
| 605 | |
| 606 | DEV_DBG("%s: edid size %d\n", __func__, size); |
| 607 | |
| 608 | memcpy(buf, hdmi_ctrl->edid_buf, size); |
| 609 | |
| 610 | print_hex_dump(KERN_DEBUG, "HDMI EDID: ", DUMP_PREFIX_NONE, |
| 611 | 16, 1, buf, size, false); |
| 612 | |
| 613 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 614 | return size; |
| 615 | } |
| 616 | |
| 617 | static ssize_t hdmi_tx_sysfs_wta_audio_cb(struct device *dev, |
| 618 | struct device_attribute *attr, const char *buf, size_t count) |
| 619 | { |
| 620 | int ack, rc = 0; |
| 621 | ssize_t ret = strnlen(buf, PAGE_SIZE); |
| 622 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 623 | |
| 624 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 625 | |
| 626 | if (!hdmi_ctrl) { |
| 627 | DEV_ERR("%s: invalid input\n", __func__); |
| 628 | ret = -EINVAL; |
| 629 | goto end; |
| 630 | } |
| 631 | |
| 632 | rc = kstrtoint(buf, 10, &ack); |
| 633 | if (rc) { |
| 634 | DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, rc); |
| 635 | goto end; |
| 636 | } |
| 637 | |
| 638 | if (hdmi_ctrl->audio_ops.ack) |
| 639 | hdmi_ctrl->audio_ops.ack(hdmi_ctrl->audio_data, |
| 640 | ack, hdmi_ctrl->hpd_state); |
| 641 | end: |
| 642 | return ret; |
| 643 | } |
| 644 | |
| 645 | static int hdmi_tx_update_pixel_clk(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 646 | { |
| 647 | struct dss_module_power *power_data = NULL; |
| 648 | struct mdss_panel_info *pinfo; |
| 649 | int rc = 0; |
| 650 | |
| 651 | if (!hdmi_ctrl) { |
| 652 | DEV_ERR("%s: invalid input\n", __func__); |
| 653 | rc = -EINVAL; |
| 654 | goto end; |
| 655 | } |
| 656 | |
| 657 | pinfo = &hdmi_ctrl->panel_data.panel_info; |
| 658 | |
| 659 | power_data = &hdmi_ctrl->pdata.power_data[HDMI_TX_CORE_PM]; |
| 660 | if (!power_data) { |
| 661 | DEV_ERR("%s: Error: invalid power data\n", __func__); |
| 662 | rc = -EINVAL; |
| 663 | goto end; |
| 664 | } |
| 665 | |
| 666 | if (power_data->clk_config->rate == pinfo->clk_rate) { |
| 667 | rc = -EINVAL; |
| 668 | goto end; |
| 669 | } |
| 670 | |
| 671 | power_data->clk_config->rate = pinfo->clk_rate; |
| 672 | |
| 673 | if (pinfo->out_format == MDP_Y_CBCR_H2V2) |
| 674 | power_data->clk_config->rate /= 2; |
| 675 | |
| 676 | DEV_DBG("%s: rate %ld\n", __func__, power_data->clk_config->rate); |
| 677 | |
| 678 | msm_dss_clk_set_rate(power_data->clk_config, power_data->num_clk); |
| 679 | end: |
| 680 | return rc; |
| 681 | } |
| 682 | |
| 683 | static ssize_t hdmi_tx_sysfs_wta_hot_plug(struct device *dev, |
| 684 | struct device_attribute *attr, const char *buf, size_t count) |
| 685 | { |
| 686 | int hot_plug, rc; |
| 687 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 688 | |
| 689 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 690 | |
| 691 | if (!hdmi_ctrl) { |
| 692 | DEV_ERR("%s: invalid input\n", __func__); |
| 693 | return -EINVAL; |
| 694 | } |
| 695 | |
| 696 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 697 | |
| 698 | rc = kstrtoint(buf, 10, &hot_plug); |
| 699 | if (rc) { |
| 700 | DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, rc); |
| 701 | goto end; |
| 702 | } |
| 703 | |
| 704 | hdmi_ctrl->hpd_state = !!hot_plug; |
| 705 | |
| 706 | queue_work(hdmi_ctrl->workq, &hdmi_ctrl->hpd_int_work); |
| 707 | |
| 708 | rc = strnlen(buf, PAGE_SIZE); |
| 709 | end: |
| 710 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 711 | return rc; |
| 712 | } |
| 713 | |
| 714 | static ssize_t hdmi_tx_sysfs_rda_sim_mode(struct device *dev, |
| 715 | struct device_attribute *attr, char *buf) |
| 716 | { |
| 717 | ssize_t ret; |
| 718 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 719 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 720 | |
| 721 | if (!hdmi_ctrl) { |
| 722 | DEV_ERR("%s: invalid input\n", __func__); |
| 723 | return -EINVAL; |
| 724 | } |
| 725 | |
| 726 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 727 | ret = snprintf(buf, PAGE_SIZE, "%d\n", hdmi_ctrl->sim_mode); |
| 728 | DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->sim_mode); |
| 729 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 730 | |
| 731 | return ret; |
| 732 | } |
| 733 | |
| 734 | static ssize_t hdmi_tx_sysfs_wta_sim_mode(struct device *dev, |
| 735 | struct device_attribute *attr, const char *buf, size_t count) |
| 736 | { |
| 737 | int sim_mode, rc; |
| 738 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 739 | struct dss_io_data *io = NULL; |
| 740 | |
| 741 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 742 | |
| 743 | if (!hdmi_ctrl) { |
| 744 | DEV_ERR("%s: invalid input\n", __func__); |
| 745 | return -EINVAL; |
| 746 | } |
| 747 | |
| 748 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 749 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 750 | if (!io->base) { |
| 751 | DEV_ERR("%s: core io is not initialized\n", __func__); |
| 752 | rc = -EINVAL; |
| 753 | goto end; |
| 754 | } |
| 755 | |
| 756 | if (!hdmi_ctrl->hpd_initialized) { |
| 757 | DEV_ERR("%s: hpd not enabled\n", __func__); |
| 758 | rc = -EINVAL; |
| 759 | goto end; |
| 760 | } |
| 761 | |
| 762 | rc = kstrtoint(buf, 10, &sim_mode); |
| 763 | if (rc) { |
| 764 | DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, rc); |
| 765 | goto end; |
| 766 | } |
| 767 | |
| 768 | hdmi_ctrl->sim_mode = !!sim_mode; |
| 769 | |
| 770 | if (hdmi_ctrl->sim_mode) { |
| 771 | DSS_REG_W(io, HDMI_HPD_INT_CTRL, BIT(0)); |
| 772 | } else { |
| 773 | int cable_sense = DSS_REG_R(io, HDMI_HPD_INT_STATUS) & BIT(1); |
| 774 | |
| 775 | DSS_REG_W(io, HDMI_HPD_INT_CTRL, BIT(0) | BIT(2) | |
| 776 | (cable_sense ? 0 : BIT(1))); |
| 777 | } |
| 778 | |
| 779 | rc = strnlen(buf, PAGE_SIZE); |
| 780 | end: |
| 781 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 782 | return rc; |
| 783 | } |
| 784 | |
| 785 | static ssize_t hdmi_tx_sysfs_rda_video_mode(struct device *dev, |
| 786 | struct device_attribute *attr, char *buf) |
| 787 | { |
| 788 | ssize_t ret; |
| 789 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 790 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 791 | |
| 792 | if (!hdmi_ctrl) { |
| 793 | DEV_ERR("%s: invalid input\n", __func__); |
| 794 | return -EINVAL; |
| 795 | } |
| 796 | |
| 797 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 798 | ret = snprintf(buf, PAGE_SIZE, "%d\n", hdmi_ctrl->vic); |
| 799 | DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->vic); |
| 800 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 801 | |
| 802 | return ret; |
| 803 | } /* hdmi_tx_sysfs_rda_video_mode */ |
| 804 | |
| 805 | static ssize_t hdmi_tx_sysfs_rda_hpd(struct device *dev, |
| 806 | struct device_attribute *attr, char *buf) |
| 807 | { |
| 808 | ssize_t ret; |
| 809 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 810 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 811 | |
| 812 | if (!hdmi_ctrl) { |
| 813 | DEV_ERR("%s: invalid input\n", __func__); |
| 814 | return -EINVAL; |
| 815 | } |
| 816 | |
| 817 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 818 | ret = snprintf(buf, PAGE_SIZE, "%d\n", hdmi_ctrl->hpd_feature_on); |
| 819 | DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->hpd_feature_on); |
| 820 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 821 | |
| 822 | return ret; |
| 823 | } /* hdmi_tx_sysfs_rda_hpd */ |
| 824 | |
| 825 | static ssize_t hdmi_tx_sysfs_wta_hpd(struct device *dev, |
| 826 | struct device_attribute *attr, const char *buf, size_t count) |
| 827 | { |
| 828 | int hpd, rc = 0; |
| 829 | ssize_t ret = strnlen(buf, PAGE_SIZE); |
| 830 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 831 | |
| 832 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 833 | |
| 834 | if (!hdmi_ctrl) { |
| 835 | DEV_ERR("%s: invalid input\n", __func__); |
| 836 | return -EINVAL; |
| 837 | } |
| 838 | |
| 839 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 840 | |
| 841 | rc = kstrtoint(buf, 10, &hpd); |
| 842 | if (rc) { |
| 843 | DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, rc); |
| 844 | goto end; |
| 845 | } |
| 846 | |
| 847 | DEV_DBG("%s: %d\n", __func__, hpd); |
| 848 | |
| 849 | if (hdmi_ctrl->ds_registered && hpd && |
| 850 | (!hdmi_ctrl->mhl_hpd_on || hdmi_ctrl->hpd_feature_on)) { |
| 851 | DEV_DBG("%s: DS registered, HPD on not allowed\n", __func__); |
| 852 | goto end; |
| 853 | } |
| 854 | |
| 855 | switch (hpd) { |
| 856 | case HPD_OFF: |
| 857 | case HPD_DISABLE: |
| 858 | if (hpd == HPD_DISABLE) |
| 859 | hdmi_ctrl->hpd_disabled = true; |
| 860 | |
| 861 | if (!hdmi_ctrl->hpd_feature_on) { |
| 862 | DEV_DBG("%s: HPD is already off\n", __func__); |
| 863 | goto end; |
| 864 | } |
| 865 | |
| 866 | /* disable audio ack feature */ |
| 867 | if (hdmi_ctrl->audio_ops.ack) |
| 868 | hdmi_ctrl->audio_ops.ack(hdmi_ctrl->audio_data, |
| 869 | AUDIO_ACK_SET_ENABLE, hdmi_ctrl->hpd_state); |
| 870 | |
| 871 | if (hdmi_ctrl->panel_power_on) { |
| 872 | hdmi_ctrl->hpd_off_pending = true; |
| 873 | hdmi_tx_config_5v(hdmi_ctrl, false); |
| 874 | } else { |
| 875 | hdmi_tx_hpd_off(hdmi_ctrl); |
| 876 | |
| 877 | hdmi_ctrl->sdev.state = 0; |
| 878 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0); |
| 879 | } |
| 880 | |
| 881 | break; |
| 882 | case HPD_ON: |
| 883 | if (hdmi_ctrl->hpd_disabled == true) { |
| 884 | DEV_ERR("%s: hpd is disabled, state %d not allowed\n", |
| 885 | __func__, hpd); |
| 886 | goto end; |
| 887 | } |
| 888 | |
| 889 | if (hdmi_ctrl->pdata.cond_power_on) { |
| 890 | DEV_ERR("%s: hpd state %d not allowed w/ cond. hpd\n", |
| 891 | __func__, hpd); |
| 892 | goto end; |
| 893 | } |
| 894 | |
| 895 | if (hdmi_ctrl->hpd_feature_on) { |
| 896 | DEV_DBG("%s: HPD is already on\n", __func__); |
| 897 | goto end; |
| 898 | } |
| 899 | |
| 900 | rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true); |
| 901 | break; |
| 902 | case HPD_ON_CONDITIONAL_MTP: |
| 903 | if (hdmi_ctrl->hpd_disabled == true) { |
| 904 | DEV_ERR("%s: hpd is disabled, state %d not allowed\n", |
| 905 | __func__, hpd); |
| 906 | goto end; |
| 907 | } |
| 908 | |
| 909 | if (!hdmi_ctrl->pdata.cond_power_on) { |
| 910 | DEV_ERR("%s: hpd state %d not allowed w/o cond. hpd\n", |
| 911 | __func__, hpd); |
| 912 | goto end; |
| 913 | } |
| 914 | |
| 915 | if (hdmi_ctrl->hpd_feature_on) { |
| 916 | DEV_DBG("%s: HPD is already on\n", __func__); |
| 917 | goto end; |
| 918 | } |
| 919 | |
| 920 | rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true); |
| 921 | break; |
| 922 | case HPD_ENABLE: |
| 923 | hdmi_ctrl->hpd_disabled = false; |
| 924 | |
| 925 | rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true); |
| 926 | break; |
| 927 | default: |
| 928 | DEV_ERR("%s: Invalid HPD state requested\n", __func__); |
| 929 | goto end; |
| 930 | } |
| 931 | |
| 932 | if (!rc) { |
| 933 | hdmi_ctrl->hpd_feature_on = |
| 934 | (~hdmi_ctrl->hpd_feature_on) & BIT(0); |
| 935 | DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->hpd_feature_on); |
| 936 | } else { |
| 937 | DEV_ERR("%s: failed to '%s' hpd. rc = %d\n", __func__, |
| 938 | hpd ? "enable" : "disable", rc); |
| 939 | ret = rc; |
| 940 | } |
| 941 | |
| 942 | end: |
| 943 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 944 | return ret; |
| 945 | } /* hdmi_tx_sysfs_wta_hpd */ |
| 946 | |
| 947 | static ssize_t hdmi_tx_sysfs_wta_vendor_name(struct device *dev, |
| 948 | struct device_attribute *attr, const char *buf, size_t count) |
| 949 | { |
| 950 | ssize_t ret, sz; |
| 951 | u8 *s = (u8 *) buf; |
| 952 | u8 *d = NULL; |
| 953 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 954 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 955 | |
| 956 | if (!hdmi_ctrl) { |
| 957 | DEV_ERR("%s: invalid input\n", __func__); |
| 958 | return -EINVAL; |
| 959 | } |
| 960 | |
| 961 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 962 | d = hdmi_ctrl->spd_vendor_name; |
| 963 | ret = strnlen(buf, PAGE_SIZE); |
| 964 | ret = (ret > 8) ? 8 : ret; |
| 965 | |
| 966 | sz = sizeof(hdmi_ctrl->spd_vendor_name); |
| 967 | memset(hdmi_ctrl->spd_vendor_name, 0, sz); |
| 968 | while (*s) { |
| 969 | if (*s & 0x60 && *s ^ 0x7f) { |
| 970 | *d = *s; |
| 971 | } else { |
| 972 | /* stop copying if control character found */ |
| 973 | break; |
| 974 | } |
| 975 | |
| 976 | if (++s > (u8 *) (buf + ret)) |
| 977 | break; |
| 978 | |
| 979 | d++; |
| 980 | } |
| 981 | hdmi_ctrl->spd_vendor_name[sz - 1] = 0; |
| 982 | |
| 983 | DEV_DBG("%s: '%s'\n", __func__, hdmi_ctrl->spd_vendor_name); |
| 984 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 985 | |
| 986 | return ret; |
| 987 | } /* hdmi_tx_sysfs_wta_vendor_name */ |
| 988 | |
| 989 | static ssize_t hdmi_tx_sysfs_rda_vendor_name(struct device *dev, |
| 990 | struct device_attribute *attr, char *buf) |
| 991 | { |
| 992 | ssize_t ret; |
| 993 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 994 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 995 | |
| 996 | if (!hdmi_ctrl) { |
| 997 | DEV_ERR("%s: invalid input\n", __func__); |
| 998 | return -EINVAL; |
| 999 | } |
| 1000 | |
| 1001 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1002 | ret = snprintf(buf, PAGE_SIZE, "%s\n", hdmi_ctrl->spd_vendor_name); |
| 1003 | DEV_DBG("%s: '%s'\n", __func__, hdmi_ctrl->spd_vendor_name); |
| 1004 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1005 | |
| 1006 | return ret; |
| 1007 | } /* hdmi_tx_sysfs_rda_vendor_name */ |
| 1008 | |
| 1009 | static ssize_t hdmi_tx_sysfs_wta_product_description(struct device *dev, |
| 1010 | struct device_attribute *attr, const char *buf, size_t count) |
| 1011 | { |
| 1012 | ssize_t ret, sz; |
| 1013 | u8 *s = (u8 *) buf; |
| 1014 | u8 *d = NULL; |
| 1015 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 1016 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 1017 | |
| 1018 | if (!hdmi_ctrl) { |
| 1019 | DEV_ERR("%s: invalid input\n", __func__); |
| 1020 | return -EINVAL; |
| 1021 | } |
| 1022 | |
| 1023 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1024 | d = hdmi_ctrl->spd_product_description; |
| 1025 | ret = strnlen(buf, PAGE_SIZE); |
| 1026 | ret = (ret > 16) ? 16 : ret; |
| 1027 | |
| 1028 | sz = sizeof(hdmi_ctrl->spd_product_description); |
| 1029 | memset(hdmi_ctrl->spd_product_description, 0, sz); |
| 1030 | while (*s) { |
| 1031 | if (*s & 0x60 && *s ^ 0x7f) { |
| 1032 | *d = *s; |
| 1033 | } else { |
| 1034 | /* stop copying if control character found */ |
| 1035 | break; |
| 1036 | } |
| 1037 | |
| 1038 | if (++s > (u8 *) (buf + ret)) |
| 1039 | break; |
| 1040 | |
| 1041 | d++; |
| 1042 | } |
| 1043 | hdmi_ctrl->spd_product_description[sz - 1] = 0; |
| 1044 | |
| 1045 | DEV_DBG("%s: '%s'\n", __func__, hdmi_ctrl->spd_product_description); |
| 1046 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1047 | |
| 1048 | return ret; |
| 1049 | } /* hdmi_tx_sysfs_wta_product_description */ |
| 1050 | |
| 1051 | static ssize_t hdmi_tx_sysfs_rda_product_description(struct device *dev, |
| 1052 | struct device_attribute *attr, char *buf) |
| 1053 | { |
| 1054 | ssize_t ret; |
| 1055 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 1056 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 1057 | |
| 1058 | if (!hdmi_ctrl) { |
| 1059 | DEV_ERR("%s: invalid input\n", __func__); |
| 1060 | return -EINVAL; |
| 1061 | } |
| 1062 | |
| 1063 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1064 | ret = snprintf(buf, PAGE_SIZE, "%s\n", |
| 1065 | hdmi_ctrl->spd_product_description); |
| 1066 | DEV_DBG("%s: '%s'\n", __func__, hdmi_ctrl->spd_product_description); |
| 1067 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1068 | |
| 1069 | return ret; |
| 1070 | } /* hdmi_tx_sysfs_rda_product_description */ |
| 1071 | |
| 1072 | static ssize_t hdmi_tx_sysfs_wta_avi_itc(struct device *dev, |
| 1073 | struct device_attribute *attr, const char *buf, size_t count) |
| 1074 | { |
| 1075 | int ret; |
| 1076 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 1077 | int itc = 0; |
| 1078 | |
| 1079 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 1080 | |
| 1081 | if (!hdmi_ctrl) { |
| 1082 | DEV_ERR("%s: invalid input\n", __func__); |
| 1083 | return -EINVAL; |
| 1084 | } |
| 1085 | |
| 1086 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1087 | |
| 1088 | ret = kstrtoint(buf, 10, &itc); |
| 1089 | if (ret) { |
| 1090 | DEV_ERR("%s: kstrtoint failed. rc =%d\n", __func__, ret); |
| 1091 | goto end; |
| 1092 | } |
| 1093 | |
| 1094 | if (itc < 0 || itc > 1) { |
| 1095 | DEV_ERR("%s: Invalid ITC %d\n", __func__, itc); |
| 1096 | ret = -EINVAL; |
| 1097 | goto end; |
| 1098 | } |
| 1099 | |
| 1100 | hdmi_ctrl->panel.is_it_content = itc ? true : false; |
| 1101 | |
| 1102 | ret = strnlen(buf, PAGE_SIZE); |
| 1103 | end: |
| 1104 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1105 | return ret; |
| 1106 | } /* hdmi_tx_sysfs_wta_avi_itc */ |
| 1107 | |
| 1108 | static ssize_t hdmi_tx_sysfs_wta_avi_cn_bits(struct device *dev, |
| 1109 | struct device_attribute *attr, const char *buf, size_t count) |
| 1110 | { |
| 1111 | int ret; |
| 1112 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 1113 | int cn_bits = 0; |
| 1114 | |
| 1115 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 1116 | |
| 1117 | if (!hdmi_ctrl) { |
| 1118 | DEV_ERR("%s: invalid input\n", __func__); |
| 1119 | return -EINVAL; |
| 1120 | } |
| 1121 | |
| 1122 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1123 | |
| 1124 | ret = kstrtoint(buf, 10, &cn_bits); |
| 1125 | if (ret) { |
| 1126 | DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, ret); |
| 1127 | goto end; |
| 1128 | } |
| 1129 | |
| 1130 | /* As per CEA-861-E, CN is a positive number and can be max 3 */ |
| 1131 | if (cn_bits < 0 || cn_bits > 3) { |
| 1132 | DEV_ERR("%s: Invalid CN %d\n", __func__, cn_bits); |
| 1133 | ret = -EINVAL; |
| 1134 | goto end; |
| 1135 | } |
| 1136 | |
| 1137 | hdmi_ctrl->panel.content_type = cn_bits; |
| 1138 | |
| 1139 | ret = strnlen(buf, PAGE_SIZE); |
| 1140 | end: |
| 1141 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1142 | |
| 1143 | return ret; |
| 1144 | } /* hdmi_tx_sysfs_wta_cn_bits */ |
| 1145 | |
| 1146 | static ssize_t hdmi_tx_sysfs_wta_s3d_mode(struct device *dev, |
| 1147 | struct device_attribute *attr, const char *buf, size_t count) |
| 1148 | { |
| 1149 | int ret, s3d_mode; |
| 1150 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 1151 | void *pdata; |
| 1152 | |
| 1153 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 1154 | |
| 1155 | if (!hdmi_ctrl) { |
| 1156 | DEV_ERR("%s: invalid input\n", __func__); |
| 1157 | return -EINVAL; |
| 1158 | } |
| 1159 | |
| 1160 | pdata = hdmi_tx_get_fd(HDMI_TX_FEAT_PANEL); |
| 1161 | |
| 1162 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1163 | |
| 1164 | ret = kstrtoint(buf, 10, &s3d_mode); |
| 1165 | if (ret) { |
| 1166 | DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, ret); |
| 1167 | goto end; |
| 1168 | } |
| 1169 | |
| 1170 | if (s3d_mode < HDMI_S3D_NONE || s3d_mode >= HDMI_S3D_MAX) { |
| 1171 | DEV_ERR("%s: invalid s3d mode = %d\n", __func__, s3d_mode); |
| 1172 | ret = -EINVAL; |
| 1173 | goto end; |
| 1174 | } |
| 1175 | |
| 1176 | if (s3d_mode > HDMI_S3D_NONE && |
| 1177 | !hdmi_edid_is_s3d_mode_supported( |
| 1178 | hdmi_tx_get_fd(HDMI_TX_FEAT_EDID), |
| 1179 | hdmi_ctrl->vic, s3d_mode)) { |
| 1180 | DEV_ERR("%s: s3d mode not supported in current video mode\n", |
| 1181 | __func__); |
| 1182 | ret = -EPERM; |
| 1183 | hdmi_ctrl->panel.s3d_support = false; |
| 1184 | goto end; |
| 1185 | } |
| 1186 | |
| 1187 | hdmi_ctrl->panel.s3d_mode = s3d_mode; |
| 1188 | hdmi_ctrl->panel.s3d_support = true; |
| 1189 | |
| 1190 | if (hdmi_ctrl->panel_ops.vendor) |
| 1191 | hdmi_ctrl->panel_ops.vendor(pdata); |
| 1192 | |
| 1193 | ret = strnlen(buf, PAGE_SIZE); |
| 1194 | DEV_DBG("%s: %d\n", __func__, hdmi_ctrl->s3d_mode); |
| 1195 | end: |
| 1196 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1197 | return ret; |
| 1198 | } |
| 1199 | |
| 1200 | static ssize_t hdmi_tx_sysfs_rda_s3d_mode(struct device *dev, |
| 1201 | struct device_attribute *attr, char *buf) |
| 1202 | { |
| 1203 | ssize_t ret; |
| 1204 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 1205 | hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 1206 | |
| 1207 | if (!hdmi_ctrl) { |
| 1208 | DEV_ERR("%s: invalid input\n", __func__); |
| 1209 | return -EINVAL; |
| 1210 | } |
| 1211 | |
| 1212 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1213 | ret = snprintf(buf, PAGE_SIZE, "%d\n", hdmi_ctrl->s3d_mode); |
| 1214 | DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->s3d_mode); |
| 1215 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1216 | |
| 1217 | return ret; |
| 1218 | } |
| 1219 | |
| 1220 | static ssize_t hdmi_tx_sysfs_wta_5v(struct device *dev, |
| 1221 | struct device_attribute *attr, const char *buf, size_t count) |
| 1222 | { |
| 1223 | int read, ret; |
| 1224 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 1225 | struct dss_module_power *pd = NULL; |
| 1226 | |
| 1227 | hdmi_ctrl = hdmi_tx_get_drvdata_from_sysfs_dev(dev); |
| 1228 | if (!hdmi_ctrl) { |
| 1229 | DEV_ERR("%s: invalid input\n", __func__); |
| 1230 | ret = -EINVAL; |
| 1231 | goto end; |
| 1232 | } |
| 1233 | |
| 1234 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1235 | pd = &hdmi_ctrl->pdata.power_data[HDMI_TX_HPD_PM]; |
| 1236 | if (!pd || !pd->gpio_config) { |
| 1237 | DEV_ERR("%s: Error: invalid power data\n", __func__); |
| 1238 | ret = -EINVAL; |
| 1239 | goto end; |
| 1240 | } |
| 1241 | |
| 1242 | ret = kstrtoint(buf, 10, &read); |
| 1243 | if (ret) { |
| 1244 | DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, ret); |
| 1245 | goto end; |
| 1246 | } |
| 1247 | |
| 1248 | read = ~(!!read ^ pd->gpio_config->value) & BIT(0); |
| 1249 | |
| 1250 | ret = hdmi_tx_config_5v(hdmi_ctrl, read); |
| 1251 | if (ret) |
| 1252 | goto end; |
| 1253 | |
| 1254 | ret = strnlen(buf, PAGE_SIZE); |
| 1255 | end: |
| 1256 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1257 | return ret; |
| 1258 | } |
| 1259 | |
| 1260 | static DEVICE_ATTR(connected, 0444, hdmi_tx_sysfs_rda_connected, NULL); |
| 1261 | static DEVICE_ATTR(hdmi_audio_cb, 0200, NULL, hdmi_tx_sysfs_wta_audio_cb); |
| 1262 | static DEVICE_ATTR(hot_plug, 0200, NULL, hdmi_tx_sysfs_wta_hot_plug); |
| 1263 | static DEVICE_ATTR(sim_mode, 0644, hdmi_tx_sysfs_rda_sim_mode, |
| 1264 | hdmi_tx_sysfs_wta_sim_mode); |
| 1265 | static DEVICE_ATTR(edid, 0644, hdmi_tx_sysfs_rda_edid, |
| 1266 | hdmi_tx_sysfs_wta_edid); |
| 1267 | static DEVICE_ATTR(video_mode, 0444, hdmi_tx_sysfs_rda_video_mode, NULL); |
| 1268 | static DEVICE_ATTR(hpd, 0644, hdmi_tx_sysfs_rda_hpd, |
| 1269 | hdmi_tx_sysfs_wta_hpd); |
| 1270 | static DEVICE_ATTR(vendor_name, 0644, |
| 1271 | hdmi_tx_sysfs_rda_vendor_name, hdmi_tx_sysfs_wta_vendor_name); |
| 1272 | static DEVICE_ATTR(product_description, 0644, |
| 1273 | hdmi_tx_sysfs_rda_product_description, |
| 1274 | hdmi_tx_sysfs_wta_product_description); |
| 1275 | static DEVICE_ATTR(avi_itc, 0200, NULL, hdmi_tx_sysfs_wta_avi_itc); |
| 1276 | static DEVICE_ATTR(avi_cn0_1, 0200, NULL, hdmi_tx_sysfs_wta_avi_cn_bits); |
| 1277 | static DEVICE_ATTR(s3d_mode, 0644, hdmi_tx_sysfs_rda_s3d_mode, |
| 1278 | hdmi_tx_sysfs_wta_s3d_mode); |
| 1279 | static DEVICE_ATTR(5v, 0200, NULL, hdmi_tx_sysfs_wta_5v); |
| 1280 | |
| 1281 | static struct attribute *hdmi_tx_fs_attrs[] = { |
| 1282 | &dev_attr_connected.attr, |
| 1283 | &dev_attr_hdmi_audio_cb.attr, |
| 1284 | &dev_attr_hot_plug.attr, |
| 1285 | &dev_attr_sim_mode.attr, |
| 1286 | &dev_attr_edid.attr, |
| 1287 | &dev_attr_video_mode.attr, |
| 1288 | &dev_attr_hpd.attr, |
| 1289 | &dev_attr_vendor_name.attr, |
| 1290 | &dev_attr_product_description.attr, |
| 1291 | &dev_attr_avi_itc.attr, |
| 1292 | &dev_attr_avi_cn0_1.attr, |
| 1293 | &dev_attr_s3d_mode.attr, |
| 1294 | &dev_attr_5v.attr, |
| 1295 | NULL, |
| 1296 | }; |
| 1297 | static struct attribute_group hdmi_tx_fs_attrs_group = { |
| 1298 | .attrs = hdmi_tx_fs_attrs, |
| 1299 | }; |
| 1300 | |
| 1301 | static int hdmi_tx_sysfs_create(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 1302 | struct fb_info *fbi) |
| 1303 | { |
| 1304 | int rc; |
| 1305 | |
| 1306 | if (!hdmi_ctrl || !fbi) { |
| 1307 | DEV_ERR("%s: invalid input\n", __func__); |
| 1308 | return -ENODEV; |
| 1309 | } |
| 1310 | |
| 1311 | rc = sysfs_create_group(&fbi->dev->kobj, |
| 1312 | &hdmi_tx_fs_attrs_group); |
| 1313 | if (rc) { |
| 1314 | DEV_ERR("%s: failed, rc=%d\n", __func__, rc); |
| 1315 | return rc; |
| 1316 | } |
| 1317 | hdmi_ctrl->kobj = &fbi->dev->kobj; |
| 1318 | DEV_DBG("%s: sysfs group %pK\n", __func__, hdmi_ctrl->kobj); |
| 1319 | |
| 1320 | return 0; |
| 1321 | } /* hdmi_tx_sysfs_create */ |
| 1322 | |
| 1323 | static void hdmi_tx_sysfs_remove(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1324 | { |
| 1325 | if (!hdmi_ctrl) { |
| 1326 | DEV_ERR("%s: invalid input\n", __func__); |
| 1327 | return; |
| 1328 | } |
| 1329 | if (hdmi_ctrl->kobj) |
| 1330 | sysfs_remove_group(hdmi_ctrl->kobj, &hdmi_tx_fs_attrs_group); |
| 1331 | hdmi_ctrl->kobj = NULL; |
| 1332 | } /* hdmi_tx_sysfs_remove */ |
| 1333 | |
| 1334 | static int hdmi_tx_config_avmute(struct hdmi_tx_ctrl *hdmi_ctrl, bool set) |
| 1335 | { |
| 1336 | struct dss_io_data *io; |
| 1337 | u32 av_mute_status; |
| 1338 | bool av_pkt_en = false; |
| 1339 | |
| 1340 | if (!hdmi_ctrl) { |
| 1341 | DEV_ERR("%s: invalid input\n", __func__); |
| 1342 | return -EINVAL; |
| 1343 | } |
| 1344 | |
| 1345 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 1346 | if (!io->base) { |
| 1347 | DEV_ERR("%s: Core io is not initialized\n", __func__); |
| 1348 | return -EINVAL; |
| 1349 | } |
| 1350 | |
| 1351 | av_mute_status = DSS_REG_R(io, HDMI_GC); |
| 1352 | |
| 1353 | if (set) { |
| 1354 | if (!(av_mute_status & BIT(0))) { |
| 1355 | DSS_REG_W(io, HDMI_GC, av_mute_status | BIT(0)); |
| 1356 | av_pkt_en = true; |
| 1357 | } |
| 1358 | } else { |
| 1359 | if (av_mute_status & BIT(0)) { |
| 1360 | DSS_REG_W(io, HDMI_GC, av_mute_status & ~BIT(0)); |
| 1361 | av_pkt_en = true; |
| 1362 | } |
| 1363 | } |
| 1364 | |
| 1365 | /* Enable AV Mute tranmission here */ |
| 1366 | if (av_pkt_en) |
| 1367 | DSS_REG_W(io, HDMI_VBI_PKT_CTRL, |
| 1368 | DSS_REG_R(io, HDMI_VBI_PKT_CTRL) | (BIT(4) & BIT(5))); |
| 1369 | |
| 1370 | DEV_DBG("%s: AVMUTE %s\n", __func__, set ? "set" : "cleared"); |
| 1371 | |
| 1372 | return 0; |
| 1373 | } /* hdmi_tx_config_avmute */ |
| 1374 | |
| 1375 | static bool hdmi_tx_is_encryption_set(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1376 | { |
| 1377 | struct dss_io_data *io; |
| 1378 | bool enc_en = true; |
| 1379 | u32 reg_val; |
| 1380 | |
| 1381 | if (!hdmi_ctrl) { |
| 1382 | DEV_ERR("%s: invalid input\n", __func__); |
| 1383 | goto end; |
| 1384 | } |
| 1385 | |
| 1386 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 1387 | if (!io->base) { |
| 1388 | DEV_ERR("%s: Core io is not initialized\n", __func__); |
| 1389 | goto end; |
| 1390 | } |
| 1391 | |
| 1392 | reg_val = DSS_REG_R_ND(io, HDMI_HDCP_CTRL2); |
| 1393 | if ((reg_val & BIT(0)) && (reg_val & BIT(1))) |
| 1394 | goto end; |
| 1395 | |
| 1396 | if (DSS_REG_R_ND(io, HDMI_CTRL) & BIT(2)) |
| 1397 | goto end; |
| 1398 | |
| 1399 | return false; |
| 1400 | |
| 1401 | end: |
| 1402 | return enc_en; |
| 1403 | } /* hdmi_tx_is_encryption_set */ |
| 1404 | |
| 1405 | static void hdmi_tx_hdcp_cb(void *ptr, enum hdmi_hdcp_state status) |
| 1406 | { |
| 1407 | struct hdmi_tx_ctrl *hdmi_ctrl = (struct hdmi_tx_ctrl *)ptr; |
| 1408 | |
| 1409 | if (!hdmi_ctrl) { |
| 1410 | DEV_ERR("%s: invalid input\n", __func__); |
| 1411 | return; |
| 1412 | } |
| 1413 | |
| 1414 | hdmi_ctrl->hdcp_status = status; |
| 1415 | |
| 1416 | queue_delayed_work(hdmi_ctrl->workq, &hdmi_ctrl->hdcp_cb_work, HZ/4); |
| 1417 | } |
| 1418 | |
| 1419 | static inline bool hdmi_tx_is_stream_shareable(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1420 | { |
| 1421 | bool ret; |
| 1422 | |
| 1423 | switch (hdmi_ctrl->enc_lvl) { |
| 1424 | case HDCP_STATE_AUTH_ENC_NONE: |
| 1425 | ret = true; |
| 1426 | break; |
| 1427 | case HDCP_STATE_AUTH_ENC_1X: |
| 1428 | ret = hdmi_tx_is_hdcp_enabled(hdmi_ctrl) && |
| 1429 | hdmi_ctrl->auth_state; |
| 1430 | break; |
| 1431 | case HDCP_STATE_AUTH_ENC_2P2: |
| 1432 | ret = hdmi_ctrl->hdcp_feature_on && |
| 1433 | hdmi_ctrl->hdcp22_present && |
| 1434 | hdmi_ctrl->auth_state; |
| 1435 | break; |
| 1436 | default: |
| 1437 | ret = false; |
| 1438 | } |
| 1439 | |
| 1440 | return ret; |
| 1441 | } |
| 1442 | |
| 1443 | static void hdmi_tx_hdcp_cb_work(struct work_struct *work) |
| 1444 | { |
| 1445 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 1446 | struct delayed_work *dw = to_delayed_work(work); |
| 1447 | int rc = 0; |
| 1448 | |
| 1449 | hdmi_ctrl = container_of(dw, struct hdmi_tx_ctrl, hdcp_cb_work); |
| 1450 | if (!hdmi_ctrl) { |
| 1451 | DEV_DBG("%s: invalid input\n", __func__); |
| 1452 | return; |
| 1453 | } |
| 1454 | |
| 1455 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 1456 | |
| 1457 | switch (hdmi_ctrl->hdcp_status) { |
| 1458 | case HDCP_STATE_AUTHENTICATED: |
| 1459 | hdmi_ctrl->auth_state = true; |
| 1460 | |
| 1461 | if (hdmi_tx_is_panel_on(hdmi_ctrl) && |
| 1462 | hdmi_tx_is_stream_shareable(hdmi_ctrl)) { |
| 1463 | rc = hdmi_tx_config_avmute(hdmi_ctrl, false); |
| 1464 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 1); |
| 1465 | } |
| 1466 | |
| 1467 | if (hdmi_ctrl->hdcp1_use_sw_keys && hdmi_ctrl->hdcp14_present) |
| 1468 | hdcp1_set_enc(true); |
| 1469 | break; |
| 1470 | case HDCP_STATE_AUTH_FAIL: |
| 1471 | if (hdmi_ctrl->hdcp1_use_sw_keys && hdmi_ctrl->hdcp14_present) { |
| 1472 | if (hdmi_ctrl->auth_state) |
| 1473 | hdcp1_set_enc(false); |
| 1474 | } |
| 1475 | |
| 1476 | hdmi_ctrl->auth_state = false; |
| 1477 | |
| 1478 | if (hdmi_tx_is_panel_on(hdmi_ctrl)) { |
| 1479 | DEV_DBG("%s: Reauthenticating\n", __func__); |
| 1480 | |
| 1481 | if (hdmi_tx_is_encryption_set(hdmi_ctrl) || |
| 1482 | !hdmi_tx_is_stream_shareable(hdmi_ctrl)) { |
| 1483 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0); |
| 1484 | rc = hdmi_tx_config_avmute(hdmi_ctrl, true); |
| 1485 | } |
| 1486 | |
| 1487 | rc = hdmi_ctrl->hdcp_ops->hdmi_hdcp_reauthenticate( |
| 1488 | hdmi_ctrl->hdcp_data); |
| 1489 | if (rc) |
| 1490 | DEV_ERR("%s: HDCP reauth failed. rc=%d\n", |
| 1491 | __func__, rc); |
| 1492 | } else { |
| 1493 | DEV_DBG("%s: Not reauthenticating. Cable not conn\n", |
| 1494 | __func__); |
| 1495 | } |
| 1496 | |
| 1497 | break; |
| 1498 | case HDCP_STATE_AUTH_ENC_NONE: |
| 1499 | hdmi_ctrl->enc_lvl = HDCP_STATE_AUTH_ENC_NONE; |
| 1500 | |
| 1501 | if (hdmi_tx_is_panel_on(hdmi_ctrl)) { |
| 1502 | rc = hdmi_tx_config_avmute(hdmi_ctrl, false); |
| 1503 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 1); |
| 1504 | } |
| 1505 | break; |
| 1506 | case HDCP_STATE_AUTH_ENC_1X: |
| 1507 | case HDCP_STATE_AUTH_ENC_2P2: |
| 1508 | hdmi_ctrl->enc_lvl = hdmi_ctrl->hdcp_status; |
| 1509 | |
| 1510 | if (hdmi_tx_is_panel_on(hdmi_ctrl) && |
| 1511 | hdmi_tx_is_stream_shareable(hdmi_ctrl)) { |
| 1512 | rc = hdmi_tx_config_avmute(hdmi_ctrl, false); |
| 1513 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 1); |
| 1514 | } else { |
| 1515 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0); |
| 1516 | rc = hdmi_tx_config_avmute(hdmi_ctrl, true); |
| 1517 | } |
| 1518 | break; |
| 1519 | default: |
| 1520 | break; |
| 1521 | /* do nothing */ |
| 1522 | } |
| 1523 | |
| 1524 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 1525 | } |
| 1526 | |
| 1527 | static u32 hdmi_tx_ddc_read(struct hdmi_tx_ddc_ctrl *ddc_ctrl, |
| 1528 | u32 block, u8 *edid_buf) |
| 1529 | { |
| 1530 | u32 block_size = EDID_BLOCK_SIZE; |
| 1531 | struct hdmi_tx_ddc_data ddc_data; |
| 1532 | u32 status = 0, retry_cnt = 0, i; |
| 1533 | |
| 1534 | if (!ddc_ctrl || !edid_buf) { |
| 1535 | DEV_ERR("%s: invalid input\n", __func__); |
| 1536 | return -EINVAL; |
| 1537 | } |
| 1538 | |
| 1539 | do { |
| 1540 | DEV_DBG("EDID: reading block(%d) with block-size=%d\n", |
| 1541 | block, block_size); |
| 1542 | |
| 1543 | for (i = 0; i < EDID_BLOCK_SIZE; i += block_size) { |
| 1544 | memset(&ddc_data, 0, sizeof(ddc_data)); |
| 1545 | |
| 1546 | ddc_data.dev_addr = EDID_BLOCK_ADDR; |
| 1547 | ddc_data.offset = block * EDID_BLOCK_SIZE + i; |
| 1548 | ddc_data.data_buf = edid_buf + i; |
| 1549 | ddc_data.data_len = block_size; |
| 1550 | ddc_data.request_len = block_size; |
| 1551 | ddc_data.retry = 1; |
| 1552 | ddc_data.what = "EDID"; |
| 1553 | ddc_data.retry_align = true; |
| 1554 | |
| 1555 | ddc_ctrl->ddc_data = ddc_data; |
| 1556 | |
| 1557 | /* Read EDID twice with 32bit alighnment too */ |
| 1558 | if (block < 2) |
| 1559 | status = hdmi_ddc_read(ddc_ctrl); |
| 1560 | else |
| 1561 | status = hdmi_ddc_read_seg(ddc_ctrl); |
| 1562 | |
| 1563 | if (status) |
| 1564 | break; |
| 1565 | } |
| 1566 | if (retry_cnt++ >= MAX_EDID_READ_RETRY) |
| 1567 | block_size /= 2; |
| 1568 | |
| 1569 | } while (status && (block_size >= 16)); |
| 1570 | |
| 1571 | return status; |
| 1572 | } |
| 1573 | |
| 1574 | static int hdmi_tx_read_edid_retry(struct hdmi_tx_ctrl *hdmi_ctrl, u8 block) |
| 1575 | { |
| 1576 | u32 checksum_retry = 0; |
| 1577 | u8 *ebuf; |
| 1578 | int ret = 0; |
| 1579 | struct hdmi_tx_ddc_ctrl *ddc_ctrl; |
| 1580 | |
| 1581 | if (!hdmi_ctrl) { |
| 1582 | DEV_ERR("%s: invalid input\n", __func__); |
| 1583 | ret = -EINVAL; |
| 1584 | goto end; |
| 1585 | } |
| 1586 | |
| 1587 | ebuf = hdmi_ctrl->edid_buf; |
| 1588 | if (!ebuf) { |
| 1589 | DEV_ERR("%s: invalid edid buf\n", __func__); |
| 1590 | ret = -EINVAL; |
| 1591 | goto end; |
| 1592 | } |
| 1593 | |
| 1594 | ddc_ctrl = &hdmi_ctrl->ddc_ctrl; |
| 1595 | |
| 1596 | while (checksum_retry++ < MAX_EDID_READ_RETRY) { |
| 1597 | ret = hdmi_tx_ddc_read(ddc_ctrl, block, |
| 1598 | ebuf + (block * EDID_BLOCK_SIZE)); |
| 1599 | if (ret) |
| 1600 | continue; |
| 1601 | else |
| 1602 | break; |
| 1603 | } |
| 1604 | end: |
| 1605 | return ret; |
| 1606 | } |
| 1607 | |
| 1608 | static int hdmi_tx_read_edid(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1609 | { |
| 1610 | int ndx, check_sum; |
| 1611 | int cea_blks = 0, block = 0, total_blocks = 0; |
| 1612 | int ret = 0; |
| 1613 | u8 *ebuf; |
| 1614 | struct hdmi_tx_ddc_ctrl *ddc_ctrl; |
| 1615 | |
| 1616 | if (!hdmi_ctrl) { |
| 1617 | DEV_ERR("%s: invalid input\n", __func__); |
| 1618 | ret = -EINVAL; |
| 1619 | goto end; |
| 1620 | } |
| 1621 | |
| 1622 | ebuf = hdmi_ctrl->edid_buf; |
| 1623 | if (!ebuf) { |
| 1624 | DEV_ERR("%s: invalid edid buf\n", __func__); |
| 1625 | ret = -EINVAL; |
| 1626 | goto end; |
| 1627 | } |
| 1628 | |
| 1629 | memset(ebuf, 0, hdmi_ctrl->edid_buf_size); |
| 1630 | |
| 1631 | ddc_ctrl = &hdmi_ctrl->ddc_ctrl; |
| 1632 | |
| 1633 | do { |
| 1634 | if (block * EDID_BLOCK_SIZE > hdmi_ctrl->edid_buf_size) { |
| 1635 | DEV_ERR("%s: no mem for block %d, max mem %d\n", |
| 1636 | __func__, block, hdmi_ctrl->edid_buf_size); |
| 1637 | ret = -ENOMEM; |
| 1638 | goto end; |
| 1639 | } |
| 1640 | |
| 1641 | ret = hdmi_tx_read_edid_retry(hdmi_ctrl, block); |
| 1642 | if (ret) { |
| 1643 | DEV_ERR("%s: edid read failed\n", __func__); |
| 1644 | goto end; |
| 1645 | } |
| 1646 | |
| 1647 | /* verify checksum to validate edid block */ |
| 1648 | check_sum = 0; |
| 1649 | for (ndx = 0; ndx < EDID_BLOCK_SIZE; ++ndx) |
| 1650 | check_sum += ebuf[ndx]; |
| 1651 | |
| 1652 | if (check_sum & 0xFF) { |
| 1653 | DEV_ERR("%s: checksum mismatch\n", __func__); |
| 1654 | ret = -EINVAL; |
| 1655 | goto end; |
| 1656 | } |
| 1657 | |
| 1658 | /* get number of cea extension blocks as given in block 0*/ |
| 1659 | if (block == 0) { |
| 1660 | cea_blks = ebuf[EDID_BLOCK_SIZE - 2]; |
| 1661 | if (cea_blks < 0 || cea_blks >= MAX_EDID_BLOCKS) { |
| 1662 | cea_blks = 0; |
| 1663 | DEV_ERR("%s: invalid cea blocks %d\n", |
| 1664 | __func__, cea_blks); |
| 1665 | ret = -EINVAL; |
| 1666 | goto end; |
| 1667 | } |
| 1668 | |
| 1669 | total_blocks = cea_blks + 1; |
| 1670 | } |
| 1671 | } while ((cea_blks-- > 0) && (block++ < MAX_EDID_BLOCKS)); |
| 1672 | end: |
| 1673 | |
| 1674 | return ret; |
| 1675 | } |
| 1676 | |
| 1677 | /* Enable HDMI features */ |
| 1678 | static int hdmi_tx_init_panel(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1679 | { |
| 1680 | struct hdmi_panel_init_data panel_init_data = {0}; |
| 1681 | void *panel_data; |
| 1682 | int rc = 0; |
| 1683 | |
| 1684 | hdmi_ctrl->panel.pinfo = &hdmi_ctrl->panel_data.panel_info; |
| 1685 | |
| 1686 | panel_init_data.io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 1687 | panel_init_data.ds_data = &hdmi_ctrl->ds_data; |
| 1688 | panel_init_data.ops = &hdmi_ctrl->panel_ops; |
| 1689 | panel_init_data.panel_data = &hdmi_ctrl->panel; |
| 1690 | panel_init_data.spd_vendor_name = hdmi_ctrl->spd_vendor_name; |
| 1691 | panel_init_data.spd_product_description = |
| 1692 | hdmi_ctrl->spd_product_description; |
| 1693 | panel_init_data.version = hdmi_ctrl->hdmi_tx_ver; |
| 1694 | panel_init_data.ddc = &hdmi_ctrl->ddc_ctrl; |
| 1695 | panel_init_data.timing = &hdmi_ctrl->timing; |
| 1696 | |
| 1697 | panel_data = hdmi_panel_init(&panel_init_data); |
| 1698 | if (IS_ERR_OR_NULL(panel_data)) { |
| 1699 | DEV_ERR("%s: panel init failed\n", __func__); |
| 1700 | rc = -EINVAL; |
| 1701 | } else { |
| 1702 | hdmi_tx_set_fd(HDMI_TX_FEAT_PANEL, panel_data); |
| 1703 | DEV_DBG("%s: panel initialized\n", __func__); |
| 1704 | } |
| 1705 | |
| 1706 | return rc; |
| 1707 | } |
| 1708 | |
| 1709 | static int hdmi_tx_init_edid(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1710 | { |
| 1711 | struct hdmi_edid_init_data edid_init_data = {0}; |
| 1712 | void *edid_data; |
| 1713 | int rc = 0; |
| 1714 | |
| 1715 | edid_init_data.kobj = hdmi_ctrl->kobj; |
| 1716 | edid_init_data.ds_data = hdmi_ctrl->ds_data; |
| 1717 | edid_init_data.max_pclk_khz = hdmi_ctrl->max_pclk_khz; |
| 1718 | |
| 1719 | edid_data = hdmi_edid_init(&edid_init_data); |
| 1720 | if (!edid_data) { |
| 1721 | DEV_ERR("%s: edid init failed\n", __func__); |
| 1722 | rc = -ENODEV; |
| 1723 | goto end; |
| 1724 | } |
| 1725 | |
| 1726 | hdmi_ctrl->panel_data.panel_info.edid_data = edid_data; |
| 1727 | hdmi_tx_set_fd(HDMI_TX_FEAT_EDID, edid_data); |
| 1728 | |
| 1729 | /* get edid buffer from edid parser */ |
| 1730 | hdmi_ctrl->edid_buf = edid_init_data.buf; |
| 1731 | hdmi_ctrl->edid_buf_size = edid_init_data.buf_size; |
| 1732 | |
| 1733 | hdmi_edid_set_video_resolution(edid_data, hdmi_ctrl->vic, true); |
| 1734 | end: |
| 1735 | return rc; |
| 1736 | } |
| 1737 | |
| 1738 | static int hdmi_tx_init_hdcp(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1739 | { |
| 1740 | struct hdmi_hdcp_init_data hdcp_init_data = {0}; |
| 1741 | struct resource *res; |
| 1742 | void *hdcp_data; |
| 1743 | int rc = 0; |
| 1744 | |
| 1745 | res = platform_get_resource_byname(hdmi_ctrl->pdev, |
| 1746 | IORESOURCE_MEM, hdmi_tx_io_name(HDMI_TX_CORE_IO)); |
| 1747 | if (!res) { |
| 1748 | DEV_ERR("%s: Error getting HDMI tx core resource\n", __func__); |
| 1749 | rc = -EINVAL; |
| 1750 | goto end; |
| 1751 | } |
| 1752 | |
| 1753 | hdcp_init_data.phy_addr = res->start; |
| 1754 | hdcp_init_data.core_io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 1755 | hdcp_init_data.qfprom_io = &hdmi_ctrl->pdata.io[HDMI_TX_QFPROM_IO]; |
| 1756 | hdcp_init_data.hdcp_io = &hdmi_ctrl->pdata.io[HDMI_TX_HDCP_IO]; |
| 1757 | hdcp_init_data.mutex = &hdmi_ctrl->mutex; |
| 1758 | hdcp_init_data.sysfs_kobj = hdmi_ctrl->kobj; |
| 1759 | hdcp_init_data.ddc_ctrl = &hdmi_ctrl->ddc_ctrl; |
| 1760 | hdcp_init_data.workq = hdmi_ctrl->workq; |
| 1761 | hdcp_init_data.notify_status = hdmi_tx_hdcp_cb; |
| 1762 | hdcp_init_data.cb_data = (void *)hdmi_ctrl; |
| 1763 | hdcp_init_data.hdmi_tx_ver = hdmi_ctrl->hdmi_tx_ver; |
| 1764 | hdcp_init_data.timing = &hdmi_ctrl->timing; |
| 1765 | |
| 1766 | if (hdmi_ctrl->hdcp14_present) { |
| 1767 | hdcp_data = hdmi_hdcp_init(&hdcp_init_data); |
| 1768 | |
| 1769 | if (IS_ERR_OR_NULL(hdcp_data)) { |
| 1770 | DEV_ERR("%s: hdcp 1.4 init failed\n", __func__); |
| 1771 | rc = -EINVAL; |
| 1772 | goto end; |
| 1773 | } else { |
| 1774 | hdmi_tx_set_fd(HDMI_TX_FEAT_HDCP, hdcp_data); |
| 1775 | DEV_DBG("%s: HDCP 1.4 initialized\n", __func__); |
| 1776 | } |
| 1777 | } |
| 1778 | |
| 1779 | hdcp_data = hdmi_hdcp2p2_init(&hdcp_init_data); |
| 1780 | |
| 1781 | if (IS_ERR_OR_NULL(hdcp_data)) { |
| 1782 | DEV_ERR("%s: hdcp 2.2 init failed\n", __func__); |
| 1783 | rc = -EINVAL; |
| 1784 | goto end; |
| 1785 | } else { |
| 1786 | hdmi_tx_set_fd(HDMI_TX_FEAT_HDCP2P2, hdcp_data); |
| 1787 | DEV_DBG("%s: HDCP 2.2 initialized\n", __func__); |
| 1788 | } |
| 1789 | end: |
| 1790 | return rc; |
| 1791 | } |
| 1792 | |
| 1793 | static int hdmi_tx_init_cec_hw(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1794 | { |
| 1795 | struct hdmi_cec_init_data cec_init_data = {0}; |
| 1796 | void *cec_hw_data; |
| 1797 | int rc = 0; |
| 1798 | |
| 1799 | cec_init_data.io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 1800 | cec_init_data.workq = hdmi_ctrl->workq; |
| 1801 | cec_init_data.pinfo = &hdmi_ctrl->panel_data.panel_info; |
| 1802 | cec_init_data.ops = &hdmi_ctrl->hdmi_cec_ops; |
| 1803 | cec_init_data.cbs = &hdmi_ctrl->hdmi_cec_cbs; |
| 1804 | |
| 1805 | cec_hw_data = hdmi_cec_init(&cec_init_data); |
| 1806 | if (IS_ERR_OR_NULL(cec_hw_data)) { |
| 1807 | DEV_ERR("%s: cec init failed\n", __func__); |
| 1808 | rc = -EINVAL; |
| 1809 | } else { |
| 1810 | hdmi_ctrl->panel_data.panel_info.is_cec_supported = true; |
| 1811 | hdmi_tx_set_fd(HDMI_TX_FEAT_CEC_HW, cec_hw_data); |
| 1812 | DEV_DBG("%s: cec hw initialized\n", __func__); |
| 1813 | } |
| 1814 | |
| 1815 | return rc; |
| 1816 | } |
| 1817 | |
| 1818 | static int hdmi_tx_init_cec_abst(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1819 | { |
| 1820 | struct cec_abstract_init_data cec_abst_init_data = {0}; |
| 1821 | void *cec_abst_data; |
| 1822 | int rc = 0; |
| 1823 | |
| 1824 | cec_abst_init_data.kobj = hdmi_ctrl->kobj; |
| 1825 | cec_abst_init_data.ops = &hdmi_ctrl->hdmi_cec_ops; |
| 1826 | cec_abst_init_data.cbs = &hdmi_ctrl->hdmi_cec_cbs; |
| 1827 | |
| 1828 | cec_abst_data = cec_abstract_init(&cec_abst_init_data); |
| 1829 | if (IS_ERR_OR_NULL(cec_abst_data)) { |
| 1830 | DEV_ERR("%s: cec abst init failed\n", __func__); |
| 1831 | rc = -EINVAL; |
| 1832 | } else { |
| 1833 | hdmi_tx_set_fd(HDMI_TX_FEAT_CEC_ABST, cec_abst_data); |
| 1834 | hdmi_ctrl->panel_data.panel_info.cec_data = cec_abst_data; |
| 1835 | DEV_DBG("%s: cec abst initialized\n", __func__); |
| 1836 | } |
| 1837 | |
| 1838 | return rc; |
| 1839 | } |
| 1840 | |
| 1841 | static int hdmi_tx_init_audio(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1842 | { |
| 1843 | struct hdmi_audio_init_data audio_init_data = {0}; |
| 1844 | void *audio_data; |
| 1845 | int rc = 0; |
| 1846 | |
| 1847 | audio_init_data.io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 1848 | audio_init_data.ops = &hdmi_ctrl->audio_ops; |
| 1849 | |
| 1850 | audio_data = hdmi_audio_register(&audio_init_data); |
| 1851 | if (!audio_data) { |
| 1852 | rc = -EINVAL; |
| 1853 | DEV_ERR("%s: audio init failed\n", __func__); |
| 1854 | } else { |
| 1855 | hdmi_ctrl->audio_data = audio_data; |
| 1856 | DEV_DBG("%s: audio initialized\n", __func__); |
| 1857 | } |
| 1858 | |
| 1859 | return rc; |
| 1860 | } |
| 1861 | |
| 1862 | static void hdmi_tx_deinit_features(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 1863 | u32 features) |
| 1864 | { |
| 1865 | void *fd; |
| 1866 | |
| 1867 | if (features & HDMI_TX_FEAT_CEC_ABST) { |
| 1868 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_CEC_ABST); |
| 1869 | |
| 1870 | cec_abstract_deinit(fd); |
| 1871 | |
| 1872 | hdmi_ctrl->panel_data.panel_info.cec_data = NULL; |
| 1873 | hdmi_tx_set_fd(HDMI_TX_FEAT_CEC_ABST, 0); |
| 1874 | } |
| 1875 | |
| 1876 | if (features & HDMI_TX_FEAT_CEC_HW) { |
| 1877 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_CEC_HW); |
| 1878 | |
| 1879 | hdmi_cec_deinit(fd); |
| 1880 | hdmi_ctrl->panel_data.panel_info.is_cec_supported = false; |
| 1881 | hdmi_tx_set_fd(HDMI_TX_FEAT_CEC_HW, 0); |
| 1882 | } |
| 1883 | |
| 1884 | if (features & HDMI_TX_FEAT_HDCP2P2) { |
| 1885 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_HDCP2P2); |
| 1886 | |
| 1887 | hdmi_hdcp2p2_deinit(fd); |
| 1888 | hdmi_tx_set_fd(HDMI_TX_FEAT_HDCP2P2, 0); |
| 1889 | } |
| 1890 | |
| 1891 | if (features & HDMI_TX_FEAT_HDCP) { |
| 1892 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_HDCP); |
| 1893 | |
| 1894 | hdmi_hdcp_deinit(fd); |
| 1895 | hdmi_tx_set_fd(HDMI_TX_FEAT_HDCP, 0); |
| 1896 | } |
| 1897 | |
| 1898 | if (features & HDMI_TX_FEAT_EDID) { |
| 1899 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_EDID); |
| 1900 | |
| 1901 | hdmi_edid_deinit(fd); |
| 1902 | hdmi_ctrl->edid_buf = NULL; |
| 1903 | hdmi_ctrl->edid_buf_size = 0; |
| 1904 | hdmi_tx_set_fd(HDMI_TX_FEAT_EDID, 0); |
| 1905 | } |
| 1906 | } /* hdmi_tx_init_features */ |
| 1907 | |
| 1908 | static int hdmi_tx_init_features(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 1909 | struct fb_info *fbi) |
| 1910 | { |
| 1911 | int ret = 0; |
| 1912 | u32 deinit_features = 0; |
| 1913 | |
| 1914 | if (!hdmi_ctrl || !fbi) { |
| 1915 | DEV_ERR("%s: invalid input\n", __func__); |
| 1916 | ret = -EINVAL; |
| 1917 | goto end; |
| 1918 | } |
| 1919 | |
| 1920 | ret = hdmi_tx_init_panel(hdmi_ctrl); |
| 1921 | if (ret) |
| 1922 | goto end; |
| 1923 | |
| 1924 | ret = hdmi_tx_init_edid(hdmi_ctrl); |
| 1925 | if (ret) { |
| 1926 | deinit_features |= HDMI_TX_FEAT_PANEL; |
| 1927 | goto err; |
| 1928 | } |
| 1929 | |
| 1930 | ret = hdmi_tx_init_hdcp(hdmi_ctrl); |
| 1931 | if (ret) { |
| 1932 | deinit_features |= HDMI_TX_FEAT_EDID; |
| 1933 | goto err; |
| 1934 | } |
| 1935 | |
| 1936 | ret = hdmi_tx_init_cec_hw(hdmi_ctrl); |
| 1937 | if (ret) { |
| 1938 | deinit_features |= HDMI_TX_FEAT_HDCP; |
| 1939 | goto err; |
| 1940 | } |
| 1941 | |
| 1942 | ret = hdmi_tx_init_cec_abst(hdmi_ctrl); |
| 1943 | if (ret) { |
| 1944 | deinit_features |= HDMI_TX_FEAT_CEC_HW; |
| 1945 | goto err; |
| 1946 | } |
| 1947 | |
| 1948 | ret = hdmi_tx_init_audio(hdmi_ctrl); |
| 1949 | if (ret) { |
| 1950 | deinit_features |= HDMI_TX_FEAT_CEC_ABST; |
| 1951 | goto err; |
| 1952 | } |
| 1953 | |
| 1954 | return 0; |
| 1955 | err: |
| 1956 | hdmi_tx_deinit_features(hdmi_ctrl, deinit_features); |
| 1957 | end: |
| 1958 | return ret; |
| 1959 | } |
| 1960 | |
| 1961 | static inline u32 hdmi_tx_is_controller_on(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1962 | { |
| 1963 | struct dss_io_data *io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 1964 | |
| 1965 | return DSS_REG_R_ND(io, HDMI_CTRL) & BIT(0); |
| 1966 | } /* hdmi_tx_is_controller_on */ |
| 1967 | |
| 1968 | static int hdmi_tx_init_panel_info(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 1969 | { |
| 1970 | struct mdss_panel_info *pinfo; |
| 1971 | struct msm_hdmi_mode_timing_info timing = {0}; |
| 1972 | u32 ret; |
| 1973 | |
| 1974 | if (!hdmi_ctrl) { |
| 1975 | DEV_ERR("%s: invalid input\n", __func__); |
| 1976 | return -EINVAL; |
| 1977 | } |
| 1978 | |
| 1979 | ret = hdmi_get_supported_mode(&timing, &hdmi_ctrl->ds_data, |
| 1980 | hdmi_ctrl->vic); |
| 1981 | pinfo = &hdmi_ctrl->panel_data.panel_info; |
| 1982 | |
| 1983 | if (ret || !timing.supported || !pinfo) { |
| 1984 | DEV_ERR("%s: invalid timing data\n", __func__); |
| 1985 | return -EINVAL; |
| 1986 | } |
| 1987 | |
| 1988 | pinfo->xres = timing.active_h; |
| 1989 | pinfo->yres = timing.active_v; |
| 1990 | pinfo->clk_rate = timing.pixel_freq * 1000; |
| 1991 | |
| 1992 | pinfo->lcdc.h_back_porch = timing.back_porch_h; |
| 1993 | pinfo->lcdc.h_front_porch = timing.front_porch_h; |
| 1994 | pinfo->lcdc.h_pulse_width = timing.pulse_width_h; |
| 1995 | pinfo->lcdc.v_back_porch = timing.back_porch_v; |
| 1996 | pinfo->lcdc.v_front_porch = timing.front_porch_v; |
| 1997 | pinfo->lcdc.v_pulse_width = timing.pulse_width_v; |
| 1998 | pinfo->lcdc.frame_rate = timing.refresh_rate; |
| 1999 | |
| 2000 | pinfo->type = DTV_PANEL; |
| 2001 | pinfo->pdest = DISPLAY_3; |
| 2002 | pinfo->wait_cycle = 0; |
| 2003 | pinfo->out_format = MDP_RGB_888; |
| 2004 | pinfo->bpp = 24; |
| 2005 | pinfo->fb_num = 1; |
| 2006 | |
| 2007 | pinfo->min_fps = HDMI_TX_MIN_FPS; |
| 2008 | pinfo->max_fps = HDMI_TX_MAX_FPS; |
| 2009 | |
| 2010 | pinfo->lcdc.border_clr = 0; /* blk */ |
| 2011 | pinfo->lcdc.underflow_clr = 0xff; /* blue */ |
| 2012 | pinfo->lcdc.hsync_skew = 0; |
| 2013 | |
| 2014 | pinfo->is_pluggable = hdmi_ctrl->pdata.pluggable; |
| 2015 | |
| 2016 | hdmi_ctrl->timing = timing; |
| 2017 | |
| 2018 | return 0; |
| 2019 | } /* hdmi_tx_init_panel_info */ |
| 2020 | |
| 2021 | static int hdmi_tx_read_sink_info(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2022 | { |
| 2023 | int status = 0; |
| 2024 | void *data; |
| 2025 | |
| 2026 | if (!hdmi_ctrl) { |
| 2027 | DEV_ERR("%s: invalid input\n", __func__); |
| 2028 | return -EINVAL; |
| 2029 | } |
| 2030 | |
| 2031 | data = hdmi_tx_get_fd(HDMI_TX_FEAT_EDID); |
| 2032 | |
| 2033 | if (!hdmi_tx_is_controller_on(hdmi_ctrl)) { |
| 2034 | DEV_ERR("%s: failed: HDMI controller is off", __func__); |
| 2035 | status = -ENXIO; |
| 2036 | goto error; |
| 2037 | } |
| 2038 | |
| 2039 | if (!hdmi_ctrl->custom_edid && !hdmi_ctrl->sim_mode) { |
| 2040 | hdmi_ddc_config(&hdmi_ctrl->ddc_ctrl); |
| 2041 | |
| 2042 | status = hdmi_tx_read_edid(hdmi_ctrl); |
| 2043 | if (status) { |
| 2044 | DEV_ERR("%s: error reading edid\n", __func__); |
| 2045 | goto error; |
| 2046 | } |
| 2047 | } |
| 2048 | |
| 2049 | /* parse edid if a valid edid buffer is present */ |
| 2050 | if (hdmi_ctrl->custom_edid || !hdmi_ctrl->sim_mode) { |
| 2051 | status = hdmi_edid_parser(data); |
| 2052 | if (status) |
| 2053 | DEV_ERR("%s: edid parse failed\n", __func__); |
| 2054 | } |
| 2055 | |
| 2056 | error: |
| 2057 | return status; |
| 2058 | } /* hdmi_tx_read_sink_info */ |
| 2059 | |
| 2060 | static void hdmi_tx_update_hdcp_info(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2061 | { |
| 2062 | void *fd = NULL; |
| 2063 | struct hdmi_hdcp_ops *ops = NULL; |
| 2064 | |
| 2065 | if (!hdmi_ctrl) { |
| 2066 | DEV_ERR("%s: invalid input\n", __func__); |
| 2067 | return; |
| 2068 | } |
| 2069 | |
| 2070 | /* check first if hdcp2p2 is supported */ |
| 2071 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_HDCP2P2); |
| 2072 | if (fd) |
| 2073 | ops = hdmi_hdcp2p2_start(fd); |
| 2074 | |
| 2075 | if (ops && ops->feature_supported) |
| 2076 | hdmi_ctrl->hdcp22_present = ops->feature_supported(fd); |
| 2077 | else |
| 2078 | hdmi_ctrl->hdcp22_present = false; |
| 2079 | |
| 2080 | if (!hdmi_ctrl->hdcp22_present) { |
| 2081 | if (hdmi_ctrl->hdcp1_use_sw_keys) |
| 2082 | hdmi_ctrl->hdcp14_present = |
| 2083 | hdcp1_check_if_supported_load_app(); |
| 2084 | |
| 2085 | if (hdmi_ctrl->hdcp14_present) { |
| 2086 | fd = hdmi_tx_get_fd(HDMI_TX_FEAT_HDCP); |
| 2087 | ops = hdmi_hdcp_start(fd); |
| 2088 | } |
| 2089 | } |
| 2090 | |
| 2091 | /* update internal data about hdcp */ |
| 2092 | hdmi_ctrl->hdcp_data = fd; |
| 2093 | hdmi_ctrl->hdcp_ops = ops; |
| 2094 | } |
| 2095 | |
| 2096 | static void hdmi_tx_hpd_int_work(struct work_struct *work) |
| 2097 | { |
| 2098 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 2099 | struct dss_io_data *io; |
| 2100 | int rc = -EINVAL; |
| 2101 | int retry = MAX_EDID_READ_RETRY; |
| 2102 | |
| 2103 | hdmi_ctrl = container_of(work, struct hdmi_tx_ctrl, hpd_int_work); |
| 2104 | if (!hdmi_ctrl) { |
| 2105 | DEV_DBG("%s: invalid input\n", __func__); |
| 2106 | return; |
| 2107 | } |
| 2108 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 2109 | |
| 2110 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 2111 | |
| 2112 | if (!hdmi_ctrl->hpd_initialized) { |
| 2113 | DEV_DBG("hpd not initialized\n"); |
| 2114 | goto end; |
| 2115 | } |
| 2116 | |
| 2117 | DEV_DBG("%s: %s\n", __func__, |
| 2118 | hdmi_ctrl->hpd_state ? "CONNECT" : "DISCONNECT"); |
| 2119 | |
| 2120 | if (hdmi_ctrl->hpd_state) { |
| 2121 | if (hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, true)) { |
| 2122 | DEV_ERR("%s: Failed to enable ddc power\n", __func__); |
| 2123 | goto end; |
| 2124 | } |
| 2125 | |
| 2126 | /* Enable SW DDC before EDID read */ |
| 2127 | DSS_REG_W_ND(io, HDMI_DDC_ARBITRATION, |
| 2128 | DSS_REG_R(io, HDMI_DDC_ARBITRATION) & ~(BIT(4))); |
| 2129 | |
| 2130 | while (rc && retry--) |
| 2131 | rc = hdmi_tx_read_sink_info(hdmi_ctrl); |
| 2132 | if (!retry && rc) |
| 2133 | pr_warn_ratelimited("%s: EDID read failed\n", __func__); |
| 2134 | |
| 2135 | if (hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, false)) |
| 2136 | DEV_ERR("%s: Failed to disable ddc power\n", __func__); |
| 2137 | |
| 2138 | hdmi_tx_send_cable_notification(hdmi_ctrl, true); |
| 2139 | } else { |
| 2140 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0); |
| 2141 | hdmi_tx_wait_for_audio_engine(hdmi_ctrl); |
| 2142 | |
| 2143 | hdmi_tx_send_cable_notification(hdmi_ctrl, false); |
| 2144 | } |
| 2145 | end: |
| 2146 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 2147 | } /* hdmi_tx_hpd_int_work */ |
| 2148 | |
| 2149 | static int hdmi_tx_check_capability(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2150 | { |
| 2151 | u32 hdmi_disabled, hdcp_disabled, reg_val; |
| 2152 | struct dss_io_data *io = NULL; |
| 2153 | int ret = 0; |
| 2154 | |
| 2155 | if (!hdmi_ctrl) { |
| 2156 | DEV_ERR("%s: invalid input\n", __func__); |
| 2157 | ret = -EINVAL; |
| 2158 | goto end; |
| 2159 | } |
| 2160 | |
| 2161 | io = &hdmi_ctrl->pdata.io[HDMI_TX_QFPROM_IO]; |
| 2162 | if (!io->base) { |
| 2163 | DEV_ERR("%s: QFPROM io is not initialized\n", __func__); |
| 2164 | ret = -EINVAL; |
| 2165 | goto end; |
| 2166 | } |
| 2167 | |
| 2168 | /* check if hdmi and hdcp are disabled */ |
| 2169 | if (hdmi_ctrl->hdmi_tx_ver < HDMI_TX_VERSION_4) { |
| 2170 | hdcp_disabled = DSS_REG_R_ND(io, |
| 2171 | QFPROM_RAW_FEAT_CONFIG_ROW0_LSB) & BIT(31); |
| 2172 | |
| 2173 | hdmi_disabled = DSS_REG_R_ND(io, |
| 2174 | QFPROM_RAW_FEAT_CONFIG_ROW0_MSB) & BIT(0); |
| 2175 | } else { |
| 2176 | reg_val = DSS_REG_R_ND(io, |
| 2177 | QFPROM_RAW_FEAT_CONFIG_ROW0_LSB + QFPROM_RAW_VERSION_4); |
| 2178 | hdcp_disabled = reg_val & BIT(12); |
| 2179 | hdmi_disabled = reg_val & BIT(13); |
| 2180 | |
| 2181 | reg_val = DSS_REG_R_ND(io, SEC_CTRL_HW_VERSION); |
| 2182 | /* |
| 2183 | * With HDCP enabled on capable hardware, check if HW |
| 2184 | * or SW keys should be used. |
| 2185 | */ |
| 2186 | if (!hdcp_disabled && (reg_val >= HDCP_SEL_MIN_SEC_VERSION)) { |
| 2187 | reg_val = DSS_REG_R_ND(io, |
| 2188 | QFPROM_RAW_FEAT_CONFIG_ROW0_MSB + |
| 2189 | QFPROM_RAW_VERSION_4); |
| 2190 | if (!(reg_val & BIT(23))) |
| 2191 | hdmi_ctrl->hdcp1_use_sw_keys = true; |
| 2192 | } |
| 2193 | } |
| 2194 | |
| 2195 | DEV_DBG("%s: Features <HDMI:%s, HDCP:%s>\n", __func__, |
| 2196 | hdmi_disabled ? "OFF" : "ON", hdcp_disabled ? "OFF" : "ON"); |
| 2197 | |
| 2198 | if (hdmi_disabled) { |
| 2199 | DEV_ERR("%s: HDMI disabled\n", __func__); |
| 2200 | ret = -ENODEV; |
| 2201 | goto end; |
| 2202 | } |
| 2203 | |
| 2204 | hdmi_ctrl->hdcp14_present = !hdcp_disabled; |
| 2205 | end: |
| 2206 | return ret; |
| 2207 | } /* hdmi_tx_check_capability */ |
| 2208 | |
| 2209 | static void hdmi_tx_set_mode(struct hdmi_tx_ctrl *hdmi_ctrl, u32 power_on) |
| 2210 | { |
| 2211 | struct dss_io_data *io = NULL; |
| 2212 | /* Defaults: Disable block, HDMI mode */ |
| 2213 | u32 reg_val = BIT(1); |
| 2214 | |
| 2215 | if (!hdmi_ctrl) { |
| 2216 | DEV_ERR("%s: invalid input\n", __func__); |
| 2217 | return; |
| 2218 | } |
| 2219 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 2220 | if (!io->base) { |
| 2221 | DEV_ERR("%s: Core io is not initialized\n", __func__); |
| 2222 | return; |
| 2223 | } |
| 2224 | |
| 2225 | if (power_on) { |
| 2226 | /* Enable the block */ |
| 2227 | reg_val |= BIT(0); |
| 2228 | |
| 2229 | /** |
| 2230 | * HDMI Encryption, if HDCP is enabled |
| 2231 | * The ENC_REQUIRED bit is only available on HDMI Tx major |
| 2232 | * version less than 4. From 4 onwards, this bit is controlled |
| 2233 | * by TZ |
| 2234 | */ |
| 2235 | if (hdmi_ctrl->hdmi_tx_ver < 4 && |
| 2236 | hdmi_tx_is_hdcp_enabled(hdmi_ctrl) && |
| 2237 | !hdmi_ctrl->pdata.primary) |
| 2238 | reg_val |= BIT(2); |
| 2239 | |
| 2240 | /* Set transmission mode to DVI based in EDID info */ |
| 2241 | if (!hdmi_edid_get_sink_mode(hdmi_tx_get_fd(HDMI_TX_FEAT_EDID))) |
| 2242 | reg_val &= ~BIT(1); /* DVI mode */ |
| 2243 | |
| 2244 | /* |
| 2245 | * Use DATAPATH_MODE as 1 always, the new mode that also |
| 2246 | * supports scrambler and HDCP 2.2. The legacy mode should no |
| 2247 | * longer be used |
| 2248 | */ |
| 2249 | reg_val |= BIT(31); |
| 2250 | } |
| 2251 | |
| 2252 | DSS_REG_W(io, HDMI_CTRL, reg_val); |
| 2253 | |
| 2254 | DEV_DBG("HDMI Core: %s, HDMI_CTRL=0x%08x\n", |
| 2255 | power_on ? "Enable" : "Disable", reg_val); |
| 2256 | } /* hdmi_tx_set_mode */ |
| 2257 | |
| 2258 | static int hdmi_tx_pinctrl_set_state(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 2259 | enum hdmi_tx_power_module_type module, bool active) |
| 2260 | { |
| 2261 | struct pinctrl_state *pin_state = NULL; |
| 2262 | int rc = -EFAULT; |
| 2263 | struct dss_module_power *power_data = NULL; |
| 2264 | u64 cur_pin_states; |
| 2265 | |
| 2266 | if (!hdmi_ctrl) { |
| 2267 | DEV_ERR("%s: invalid input\n", __func__); |
| 2268 | return -ENODEV; |
| 2269 | } |
| 2270 | |
| 2271 | if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.pinctrl)) |
| 2272 | return 0; |
| 2273 | |
| 2274 | power_data = &hdmi_ctrl->pdata.power_data[module]; |
| 2275 | |
| 2276 | cur_pin_states = active ? (hdmi_ctrl->pdata.pin_states | BIT(module)) |
| 2277 | : (hdmi_ctrl->pdata.pin_states & ~BIT(module)); |
| 2278 | |
| 2279 | if (cur_pin_states & BIT(HDMI_TX_HPD_PM)) { |
| 2280 | if (cur_pin_states & BIT(HDMI_TX_DDC_PM)) { |
| 2281 | if (cur_pin_states & BIT(HDMI_TX_CEC_PM)) |
| 2282 | pin_state = hdmi_ctrl->pin_res.state_active; |
| 2283 | else |
| 2284 | pin_state = |
| 2285 | hdmi_ctrl->pin_res.state_ddc_active; |
| 2286 | } else if (cur_pin_states & BIT(HDMI_TX_CEC_PM)) { |
| 2287 | pin_state = hdmi_ctrl->pin_res.state_cec_active; |
| 2288 | } else { |
| 2289 | pin_state = hdmi_ctrl->pin_res.state_hpd_active; |
| 2290 | } |
| 2291 | } else { |
| 2292 | pin_state = hdmi_ctrl->pin_res.state_suspend; |
| 2293 | } |
| 2294 | |
| 2295 | if (!IS_ERR_OR_NULL(pin_state)) { |
| 2296 | rc = pinctrl_select_state(hdmi_ctrl->pin_res.pinctrl, |
| 2297 | pin_state); |
| 2298 | if (rc) |
| 2299 | pr_err("%s: cannot set pins\n", __func__); |
| 2300 | else |
| 2301 | hdmi_ctrl->pdata.pin_states = cur_pin_states; |
| 2302 | } else { |
| 2303 | pr_err("%s: pinstate not found\n", __func__); |
| 2304 | } |
| 2305 | |
| 2306 | return rc; |
| 2307 | } |
| 2308 | |
| 2309 | static int hdmi_tx_pinctrl_init(struct platform_device *pdev) |
| 2310 | { |
| 2311 | struct hdmi_tx_ctrl *hdmi_ctrl; |
| 2312 | |
| 2313 | hdmi_ctrl = platform_get_drvdata(pdev); |
| 2314 | if (!hdmi_ctrl) { |
| 2315 | DEV_ERR("%s: invalid input\n", __func__); |
| 2316 | return -ENODEV; |
| 2317 | } |
| 2318 | |
| 2319 | hdmi_ctrl->pin_res.pinctrl = devm_pinctrl_get(&pdev->dev); |
| 2320 | if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.pinctrl)) { |
| 2321 | pr_err("%s: failed to get pinctrl\n", __func__); |
| 2322 | return PTR_ERR(hdmi_ctrl->pin_res.pinctrl); |
| 2323 | } |
| 2324 | |
| 2325 | hdmi_ctrl->pin_res.state_active = |
| 2326 | pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl, "hdmi_active"); |
| 2327 | if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_active)) |
| 2328 | pr_debug("%s: cannot get active pinstate\n", __func__); |
| 2329 | |
| 2330 | hdmi_ctrl->pin_res.state_hpd_active = |
| 2331 | pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl, |
| 2332 | "hdmi_hpd_active"); |
| 2333 | if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_hpd_active)) |
| 2334 | pr_debug("%s: cannot get hpd active pinstate\n", __func__); |
| 2335 | |
| 2336 | hdmi_ctrl->pin_res.state_cec_active = |
| 2337 | pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl, |
| 2338 | "hdmi_cec_active"); |
| 2339 | if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_cec_active)) |
| 2340 | pr_debug("%s: cannot get cec active pinstate\n", __func__); |
| 2341 | |
| 2342 | hdmi_ctrl->pin_res.state_ddc_active = |
| 2343 | pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl, |
| 2344 | "hdmi_ddc_active"); |
| 2345 | if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_ddc_active)) |
| 2346 | pr_debug("%s: cannot get ddc active pinstate\n", __func__); |
| 2347 | |
| 2348 | hdmi_ctrl->pin_res.state_suspend = |
| 2349 | pinctrl_lookup_state(hdmi_ctrl->pin_res.pinctrl, "hdmi_sleep"); |
| 2350 | if (IS_ERR_OR_NULL(hdmi_ctrl->pin_res.state_suspend)) |
| 2351 | pr_debug("%s: cannot get sleep pinstate\n", __func__); |
| 2352 | |
| 2353 | return 0; |
| 2354 | } |
| 2355 | |
| 2356 | static int hdmi_tx_config_power(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 2357 | enum hdmi_tx_power_module_type module, int config) |
| 2358 | { |
| 2359 | int rc = 0; |
| 2360 | struct dss_module_power *power_data = NULL; |
| 2361 | char name[MAX_CLIENT_NAME_LEN]; |
| 2362 | |
| 2363 | if (!hdmi_ctrl || module >= HDMI_TX_MAX_PM) { |
| 2364 | DEV_ERR("%s: Error: invalid input\n", __func__); |
| 2365 | rc = -EINVAL; |
| 2366 | goto exit; |
| 2367 | } |
| 2368 | |
| 2369 | power_data = &hdmi_ctrl->pdata.power_data[module]; |
| 2370 | if (!power_data) { |
| 2371 | DEV_ERR("%s: Error: invalid power data\n", __func__); |
| 2372 | rc = -EINVAL; |
| 2373 | goto exit; |
| 2374 | } |
| 2375 | |
| 2376 | if (config) { |
| 2377 | rc = msm_dss_config_vreg(&hdmi_ctrl->pdev->dev, |
| 2378 | power_data->vreg_config, power_data->num_vreg, 1); |
| 2379 | if (rc) { |
| 2380 | DEV_ERR("%s: Failed to config %s vreg. Err=%d\n", |
| 2381 | __func__, hdmi_tx_pm_name(module), rc); |
| 2382 | goto exit; |
| 2383 | } |
| 2384 | |
| 2385 | snprintf(name, MAX_CLIENT_NAME_LEN, "hdmi:%u", module); |
| 2386 | hdmi_ctrl->pdata.reg_bus_clt[module] = |
| 2387 | mdss_reg_bus_vote_client_create(name); |
| 2388 | if (IS_ERR(hdmi_ctrl->pdata.reg_bus_clt[module])) { |
| 2389 | pr_err("reg bus client create failed\n"); |
| 2390 | msm_dss_config_vreg(&hdmi_ctrl->pdev->dev, |
| 2391 | power_data->vreg_config, power_data->num_vreg, 0); |
| 2392 | rc = PTR_ERR(hdmi_ctrl->pdata.reg_bus_clt[module]); |
| 2393 | goto exit; |
| 2394 | } |
| 2395 | |
| 2396 | rc = msm_dss_get_clk(&hdmi_ctrl->pdev->dev, |
| 2397 | power_data->clk_config, power_data->num_clk); |
| 2398 | if (rc) { |
| 2399 | DEV_ERR("%s: Failed to get %s clk. Err=%d\n", |
| 2400 | __func__, hdmi_tx_pm_name(module), rc); |
| 2401 | |
| 2402 | mdss_reg_bus_vote_client_destroy( |
| 2403 | hdmi_ctrl->pdata.reg_bus_clt[module]); |
| 2404 | hdmi_ctrl->pdata.reg_bus_clt[module] = NULL; |
| 2405 | msm_dss_config_vreg(&hdmi_ctrl->pdev->dev, |
| 2406 | power_data->vreg_config, power_data->num_vreg, 0); |
| 2407 | } |
| 2408 | } else { |
| 2409 | msm_dss_put_clk(power_data->clk_config, power_data->num_clk); |
| 2410 | mdss_reg_bus_vote_client_destroy( |
| 2411 | hdmi_ctrl->pdata.reg_bus_clt[module]); |
| 2412 | hdmi_ctrl->pdata.reg_bus_clt[module] = NULL; |
| 2413 | |
| 2414 | rc = msm_dss_config_vreg(&hdmi_ctrl->pdev->dev, |
| 2415 | power_data->vreg_config, power_data->num_vreg, 0); |
| 2416 | if (rc) |
| 2417 | DEV_ERR("%s: Fail to deconfig %s vreg. Err=%d\n", |
| 2418 | __func__, hdmi_tx_pm_name(module), rc); |
| 2419 | } |
| 2420 | |
| 2421 | exit: |
| 2422 | return rc; |
| 2423 | } /* hdmi_tx_config_power */ |
| 2424 | |
| 2425 | static int hdmi_tx_check_clk_state(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 2426 | enum hdmi_tx_power_module_type module) |
| 2427 | { |
| 2428 | int i; |
| 2429 | int rc = 0; |
| 2430 | struct dss_module_power *pd = NULL; |
| 2431 | |
| 2432 | if (!hdmi_ctrl || module >= HDMI_TX_MAX_PM) { |
| 2433 | DEV_ERR("%s: Error: invalid input\n", __func__); |
| 2434 | rc = -EINVAL; |
| 2435 | goto error; |
| 2436 | } |
| 2437 | |
| 2438 | pd = &hdmi_ctrl->pdata.power_data[module]; |
| 2439 | if (!pd) { |
| 2440 | DEV_ERR("%s: Error: invalid power data\n", __func__); |
| 2441 | rc = -EINVAL; |
| 2442 | goto error; |
| 2443 | } |
| 2444 | |
| 2445 | for (i = 0; i < pd->num_clk; i++) { |
| 2446 | struct clk *clk = pd->clk_config[i].clk; |
| 2447 | |
| 2448 | if (clk) { |
| 2449 | u32 rate = clk_get_rate(clk); |
| 2450 | |
| 2451 | DEV_DBG("%s: clk %s: rate %d\n", __func__, |
| 2452 | pd->clk_config[i].clk_name, rate); |
| 2453 | |
| 2454 | if (!rate) { |
| 2455 | rc = -EINVAL; |
| 2456 | goto error; |
| 2457 | } |
| 2458 | } else { |
| 2459 | DEV_ERR("%s: clk %s: not configured\n", __func__, |
| 2460 | pd->clk_config[i].clk_name); |
| 2461 | |
| 2462 | rc = -EINVAL; |
| 2463 | goto error; |
| 2464 | } |
| 2465 | } |
| 2466 | |
| 2467 | return 0; |
| 2468 | error: |
| 2469 | return rc; |
| 2470 | } |
| 2471 | |
| 2472 | static int hdmi_tx_enable_power(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 2473 | enum hdmi_tx_power_module_type module, int enable) |
| 2474 | { |
| 2475 | int rc = 0; |
| 2476 | struct dss_module_power *power_data = NULL; |
| 2477 | |
| 2478 | if (!hdmi_ctrl || module >= HDMI_TX_MAX_PM) { |
| 2479 | DEV_ERR("%s: Error: invalid input\n", __func__); |
| 2480 | rc = -EINVAL; |
| 2481 | goto error; |
| 2482 | } |
| 2483 | |
| 2484 | power_data = &hdmi_ctrl->pdata.power_data[module]; |
| 2485 | if (!power_data) { |
| 2486 | DEV_ERR("%s: Error: invalid power data\n", __func__); |
| 2487 | rc = -EINVAL; |
| 2488 | goto error; |
| 2489 | } |
| 2490 | |
| 2491 | if (hdmi_ctrl->panel_data.panel_info.cont_splash_enabled) { |
| 2492 | DEV_DBG("%s: %s enabled by splash.\n", |
| 2493 | __func__, hdmi_pm_name(module)); |
| 2494 | return 0; |
| 2495 | } |
| 2496 | |
| 2497 | if (enable && !hdmi_ctrl->power_data_enable[module]) { |
| 2498 | rc = msm_dss_enable_vreg(power_data->vreg_config, |
| 2499 | power_data->num_vreg, 1); |
| 2500 | if (rc) { |
| 2501 | DEV_ERR("%s: Failed to enable %s vreg. Error=%d\n", |
| 2502 | __func__, hdmi_tx_pm_name(module), rc); |
| 2503 | goto error; |
| 2504 | } |
| 2505 | |
| 2506 | rc = hdmi_tx_pinctrl_set_state(hdmi_ctrl, module, enable); |
| 2507 | if (rc) { |
| 2508 | DEV_ERR("%s: Failed to set %s pinctrl state\n", |
| 2509 | __func__, hdmi_tx_pm_name(module)); |
| 2510 | goto error; |
| 2511 | } |
| 2512 | |
| 2513 | rc = msm_dss_enable_gpio(power_data->gpio_config, |
| 2514 | power_data->num_gpio, 1); |
| 2515 | if (rc) { |
| 2516 | DEV_ERR("%s: Failed to enable %s gpio. Error=%d\n", |
| 2517 | __func__, hdmi_tx_pm_name(module), rc); |
| 2518 | goto disable_vreg; |
| 2519 | } |
| 2520 | mdss_update_reg_bus_vote(hdmi_ctrl->pdata.reg_bus_clt[module], |
| 2521 | VOTE_INDEX_LOW); |
| 2522 | |
| 2523 | rc = msm_dss_clk_set_rate(power_data->clk_config, |
| 2524 | power_data->num_clk); |
| 2525 | if (rc) { |
| 2526 | DEV_ERR("%s: failed to set clks rate for %s. err=%d\n", |
| 2527 | __func__, hdmi_tx_pm_name(module), rc); |
| 2528 | goto disable_gpio; |
| 2529 | } |
| 2530 | |
| 2531 | rc = msm_dss_enable_clk(power_data->clk_config, |
| 2532 | power_data->num_clk, 1); |
| 2533 | if (rc) { |
| 2534 | DEV_ERR("%s: Failed to enable clks for %s. Error=%d\n", |
| 2535 | __func__, hdmi_tx_pm_name(module), rc); |
| 2536 | goto disable_gpio; |
| 2537 | } |
| 2538 | hdmi_ctrl->power_data_enable[module] = true; |
| 2539 | } else if (!enable && hdmi_ctrl->power_data_enable[module] && |
| 2540 | (!hdmi_tx_is_cec_wakeup_en(hdmi_ctrl) || |
| 2541 | ((module != HDMI_TX_HPD_PM) && (module != HDMI_TX_CEC_PM)))) { |
| 2542 | msm_dss_enable_clk(power_data->clk_config, |
| 2543 | power_data->num_clk, 0); |
| 2544 | mdss_update_reg_bus_vote(hdmi_ctrl->pdata.reg_bus_clt[module], |
| 2545 | VOTE_INDEX_DISABLE); |
| 2546 | msm_dss_enable_gpio(power_data->gpio_config, |
| 2547 | power_data->num_gpio, 0); |
| 2548 | hdmi_tx_pinctrl_set_state(hdmi_ctrl, module, 0); |
| 2549 | msm_dss_enable_vreg(power_data->vreg_config, |
| 2550 | power_data->num_vreg, 0); |
| 2551 | hdmi_ctrl->power_data_enable[module] = false; |
| 2552 | } |
| 2553 | |
| 2554 | return rc; |
| 2555 | |
| 2556 | disable_gpio: |
| 2557 | mdss_update_reg_bus_vote(hdmi_ctrl->pdata.reg_bus_clt[module], |
| 2558 | VOTE_INDEX_DISABLE); |
| 2559 | msm_dss_enable_gpio(power_data->gpio_config, power_data->num_gpio, 0); |
| 2560 | disable_vreg: |
| 2561 | msm_dss_enable_vreg(power_data->vreg_config, power_data->num_vreg, 0); |
| 2562 | error: |
| 2563 | return rc; |
| 2564 | } /* hdmi_tx_enable_power */ |
| 2565 | |
| 2566 | static void hdmi_tx_core_off(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2567 | { |
| 2568 | if (!hdmi_ctrl) { |
| 2569 | DEV_ERR("%s: invalid input\n", __func__); |
| 2570 | return; |
| 2571 | } |
| 2572 | |
| 2573 | hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CEC_PM, 0); |
| 2574 | hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CORE_PM, 0); |
| 2575 | } /* hdmi_tx_core_off */ |
| 2576 | |
| 2577 | static int hdmi_tx_core_on(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2578 | { |
| 2579 | int rc = 0; |
| 2580 | |
| 2581 | if (!hdmi_ctrl) { |
| 2582 | DEV_ERR("%s: invalid input\n", __func__); |
| 2583 | return -EINVAL; |
| 2584 | } |
| 2585 | |
| 2586 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CORE_PM, 1); |
| 2587 | if (rc) { |
| 2588 | DEV_ERR("%s: core hdmi_msm_enable_power failed rc = %d\n", |
| 2589 | __func__, rc); |
| 2590 | return rc; |
| 2591 | } |
| 2592 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CEC_PM, 1); |
| 2593 | if (rc) { |
| 2594 | DEV_ERR("%s: cec hdmi_msm_enable_power failed rc = %d\n", |
| 2595 | __func__, rc); |
| 2596 | goto disable_core_power; |
| 2597 | } |
| 2598 | |
| 2599 | return rc; |
| 2600 | disable_core_power: |
| 2601 | hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_CORE_PM, 0); |
| 2602 | return rc; |
| 2603 | } /* hdmi_tx_core_on */ |
| 2604 | |
| 2605 | static void hdmi_tx_phy_reset(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2606 | { |
| 2607 | unsigned int phy_reset_polarity = 0x0; |
| 2608 | unsigned int pll_reset_polarity = 0x0; |
| 2609 | unsigned int val; |
| 2610 | struct dss_io_data *io = NULL; |
| 2611 | |
| 2612 | if (!hdmi_ctrl) { |
| 2613 | DEV_ERR("%s: invalid input\n", __func__); |
| 2614 | return; |
| 2615 | } |
| 2616 | |
| 2617 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 2618 | if (!io->base) { |
| 2619 | DEV_ERR("%s: core io not inititalized\n", __func__); |
| 2620 | return; |
| 2621 | } |
| 2622 | |
| 2623 | val = DSS_REG_R_ND(io, HDMI_PHY_CTRL); |
| 2624 | |
| 2625 | phy_reset_polarity = val >> 3 & 0x1; |
| 2626 | pll_reset_polarity = val >> 1 & 0x1; |
| 2627 | |
| 2628 | if (phy_reset_polarity == 0) |
| 2629 | DSS_REG_W_ND(io, HDMI_PHY_CTRL, val | SW_RESET); |
| 2630 | else |
| 2631 | DSS_REG_W_ND(io, HDMI_PHY_CTRL, val & (~SW_RESET)); |
| 2632 | |
| 2633 | if (pll_reset_polarity == 0) |
| 2634 | DSS_REG_W_ND(io, HDMI_PHY_CTRL, val | SW_RESET_PLL); |
| 2635 | else |
| 2636 | DSS_REG_W_ND(io, HDMI_PHY_CTRL, val & (~SW_RESET_PLL)); |
| 2637 | |
| 2638 | if (phy_reset_polarity == 0) |
| 2639 | DSS_REG_W_ND(io, HDMI_PHY_CTRL, val & (~SW_RESET)); |
| 2640 | else |
| 2641 | DSS_REG_W_ND(io, HDMI_PHY_CTRL, val | SW_RESET); |
| 2642 | |
| 2643 | if (pll_reset_polarity == 0) |
| 2644 | DSS_REG_W_ND(io, HDMI_PHY_CTRL, val & (~SW_RESET_PLL)); |
| 2645 | else |
| 2646 | DSS_REG_W_ND(io, HDMI_PHY_CTRL, val | SW_RESET_PLL); |
| 2647 | } /* hdmi_tx_phy_reset */ |
| 2648 | |
| 2649 | static int hdmi_tx_audio_info_setup(struct platform_device *pdev, |
| 2650 | struct msm_hdmi_audio_setup_params *params) |
| 2651 | { |
| 2652 | int rc = 0; |
| 2653 | struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev); |
| 2654 | u32 is_mode_dvi; |
| 2655 | |
| 2656 | if (!hdmi_ctrl || !params) { |
| 2657 | DEV_ERR("%s: invalid input\n", __func__); |
| 2658 | return -ENODEV; |
| 2659 | } |
| 2660 | |
| 2661 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 2662 | |
| 2663 | is_mode_dvi = hdmi_tx_is_dvi_mode(hdmi_ctrl); |
| 2664 | |
| 2665 | if (!is_mode_dvi && hdmi_tx_is_panel_on(hdmi_ctrl)) { |
| 2666 | memcpy(&hdmi_ctrl->audio_params, params, |
| 2667 | sizeof(struct msm_hdmi_audio_setup_params)); |
| 2668 | |
| 2669 | hdmi_tx_audio_setup(hdmi_ctrl); |
| 2670 | } else { |
| 2671 | rc = -EPERM; |
| 2672 | } |
| 2673 | |
| 2674 | if (rc) { |
| 2675 | struct hdmi_audio_status status = {0}; |
| 2676 | |
| 2677 | if (hdmi_ctrl->audio_ops.status) |
| 2678 | hdmi_ctrl->audio_ops.status(hdmi_ctrl->audio_data, |
| 2679 | &status); |
| 2680 | |
| 2681 | dev_err_ratelimited(&hdmi_ctrl->pdev->dev, |
| 2682 | "%s: hpd %d, ack %d, switch %d, mode %s, power %d\n", |
| 2683 | __func__, hdmi_ctrl->hpd_state, |
| 2684 | status.ack_pending, status.switched, |
| 2685 | is_mode_dvi ? "dvi" : "hdmi", |
| 2686 | hdmi_ctrl->panel_power_on); |
| 2687 | } |
| 2688 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 2689 | return rc; |
| 2690 | } |
| 2691 | |
| 2692 | static int hdmi_tx_get_audio_edid_blk(struct platform_device *pdev, |
| 2693 | struct msm_hdmi_audio_edid_blk *blk) |
| 2694 | { |
| 2695 | struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev); |
| 2696 | |
| 2697 | if (!hdmi_ctrl) { |
| 2698 | DEV_ERR("%s: invalid input\n", __func__); |
| 2699 | return -ENODEV; |
| 2700 | } |
| 2701 | |
| 2702 | return hdmi_edid_get_audio_blk( |
| 2703 | hdmi_tx_get_fd(HDMI_TX_FEAT_EDID), blk); |
| 2704 | } /* hdmi_tx_get_audio_edid_blk */ |
| 2705 | |
| 2706 | static u8 hdmi_tx_tmds_enabled(struct platform_device *pdev) |
| 2707 | { |
| 2708 | struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev); |
| 2709 | |
| 2710 | if (!hdmi_ctrl) { |
| 2711 | DEV_ERR("%s: invalid input\n", __func__); |
| 2712 | return -ENODEV; |
| 2713 | } |
| 2714 | |
| 2715 | /* status of tmds */ |
| 2716 | return (hdmi_ctrl->timing_gen_on == true); |
| 2717 | } |
| 2718 | |
| 2719 | static int hdmi_tx_set_mhl_max_pclk(struct platform_device *pdev, u32 max_val) |
| 2720 | { |
| 2721 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 2722 | |
| 2723 | hdmi_ctrl = platform_get_drvdata(pdev); |
| 2724 | |
| 2725 | if (!hdmi_ctrl) { |
| 2726 | DEV_ERR("%s: invalid input\n", __func__); |
| 2727 | return -ENODEV; |
| 2728 | } |
| 2729 | if (max_val) { |
| 2730 | hdmi_ctrl->ds_data.ds_max_clk = max_val; |
| 2731 | hdmi_ctrl->ds_data.ds_registered = true; |
| 2732 | } else { |
| 2733 | DEV_ERR("%s: invalid max pclk val\n", __func__); |
| 2734 | return -EINVAL; |
| 2735 | } |
| 2736 | |
| 2737 | return 0; |
| 2738 | } |
| 2739 | |
| 2740 | int msm_hdmi_register_mhl(struct platform_device *pdev, |
| 2741 | struct msm_hdmi_mhl_ops *ops, void *data) |
| 2742 | { |
| 2743 | struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev); |
| 2744 | |
| 2745 | if (!hdmi_ctrl) { |
| 2746 | DEV_ERR("%s: invalid pdev\n", __func__); |
| 2747 | return -ENODEV; |
| 2748 | } |
| 2749 | |
| 2750 | if (!ops) { |
| 2751 | DEV_ERR("%s: invalid ops\n", __func__); |
| 2752 | return -EINVAL; |
| 2753 | } |
| 2754 | |
| 2755 | ops->tmds_enabled = hdmi_tx_tmds_enabled; |
| 2756 | ops->set_mhl_max_pclk = hdmi_tx_set_mhl_max_pclk; |
| 2757 | ops->set_upstream_hpd = hdmi_tx_set_mhl_hpd; |
| 2758 | |
| 2759 | hdmi_ctrl->ds_registered = true; |
| 2760 | |
| 2761 | return 0; |
| 2762 | } |
| 2763 | |
| 2764 | static int hdmi_tx_get_cable_status(struct platform_device *pdev, u32 vote) |
| 2765 | { |
| 2766 | struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev); |
| 2767 | unsigned long flags; |
| 2768 | u32 hpd; |
| 2769 | |
| 2770 | if (!hdmi_ctrl) { |
| 2771 | DEV_ERR("%s: invalid input\n", __func__); |
| 2772 | return -ENODEV; |
| 2773 | } |
| 2774 | |
| 2775 | spin_lock_irqsave(&hdmi_ctrl->hpd_state_lock, flags); |
| 2776 | hpd = hdmi_tx_is_panel_on(hdmi_ctrl); |
| 2777 | spin_unlock_irqrestore(&hdmi_ctrl->hpd_state_lock, flags); |
| 2778 | |
| 2779 | hdmi_ctrl->vote_hdmi_core_on = false; |
| 2780 | |
| 2781 | if (vote && hpd) |
| 2782 | hdmi_ctrl->vote_hdmi_core_on = true; |
| 2783 | |
| 2784 | /* |
| 2785 | * if cable is not connected and audio calls this function, |
| 2786 | * consider this as an error as it will result in whole |
| 2787 | * audio path to fail. |
| 2788 | */ |
| 2789 | if (!hpd) { |
| 2790 | struct hdmi_audio_status status = {0}; |
| 2791 | |
| 2792 | if (hdmi_ctrl->audio_ops.status) |
| 2793 | hdmi_ctrl->audio_ops.status(hdmi_ctrl->audio_data, |
| 2794 | &status); |
| 2795 | |
| 2796 | dev_err_ratelimited(&hdmi_ctrl->pdev->dev, |
| 2797 | "%s: hpd %d, ack %d, switch %d, power %d\n", |
| 2798 | __func__, hdmi_ctrl->hpd_state, |
| 2799 | status.ack_pending, status.switched, |
| 2800 | hdmi_ctrl->panel_power_on); |
| 2801 | } |
| 2802 | |
| 2803 | return hpd; |
| 2804 | } |
| 2805 | |
Sachin Bhayare | 3d3767e | 2018-01-02 21:10:57 +0530 | [diff] [blame] | 2806 | int msm_mdss_hdmi_register_audio_codec(struct platform_device *pdev, |
Sachin Bhayare | eeb8889 | 2018-01-02 16:36:01 +0530 | [diff] [blame] | 2807 | struct msm_hdmi_audio_codec_ops *ops) |
| 2808 | { |
| 2809 | struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev); |
| 2810 | |
| 2811 | if (!hdmi_ctrl || !ops) { |
| 2812 | DEV_ERR("%s: invalid input\n", __func__); |
| 2813 | return -ENODEV; |
| 2814 | } |
| 2815 | |
| 2816 | ops->audio_info_setup = hdmi_tx_audio_info_setup; |
| 2817 | ops->get_audio_edid_blk = hdmi_tx_get_audio_edid_blk; |
| 2818 | ops->hdmi_cable_status = hdmi_tx_get_cable_status; |
| 2819 | |
| 2820 | return 0; |
| 2821 | } /* hdmi_tx_audio_register */ |
Sachin Bhayare | 3d3767e | 2018-01-02 21:10:57 +0530 | [diff] [blame] | 2822 | EXPORT_SYMBOL(msm_mdss_hdmi_register_audio_codec); |
Sachin Bhayare | eeb8889 | 2018-01-02 16:36:01 +0530 | [diff] [blame] | 2823 | |
| 2824 | static int hdmi_tx_setup_tmds_clk_rate(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2825 | { |
| 2826 | u32 rate = 0; |
| 2827 | struct msm_hdmi_mode_timing_info *timing = NULL; |
| 2828 | u32 rate_ratio; |
| 2829 | |
| 2830 | if (!hdmi_ctrl) { |
| 2831 | DEV_ERR("%s: Bad input parameters\n", __func__); |
| 2832 | goto end; |
| 2833 | } |
| 2834 | |
| 2835 | timing = &hdmi_ctrl->timing; |
| 2836 | if (!timing) { |
| 2837 | DEV_ERR("%s: Invalid timing info\n", __func__); |
| 2838 | goto end; |
| 2839 | } |
| 2840 | |
| 2841 | switch (hdmi_ctrl->panel_data.panel_info.out_format) { |
| 2842 | case MDP_Y_CBCR_H2V2: |
| 2843 | rate_ratio = HDMI_TX_YUV420_24BPP_PCLK_TMDS_CH_RATE_RATIO; |
| 2844 | break; |
| 2845 | case MDP_Y_CBCR_H2V1: |
| 2846 | rate_ratio = HDMI_TX_YUV422_24BPP_PCLK_TMDS_CH_RATE_RATIO; |
| 2847 | break; |
| 2848 | default: |
| 2849 | rate_ratio = HDMI_TX_RGB_24BPP_PCLK_TMDS_CH_RATE_RATIO; |
| 2850 | break; |
| 2851 | } |
| 2852 | |
| 2853 | rate = timing->pixel_freq / rate_ratio; |
| 2854 | |
| 2855 | end: |
| 2856 | return rate; |
| 2857 | } |
| 2858 | |
| 2859 | static inline bool hdmi_tx_hw_is_cable_connected(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2860 | { |
| 2861 | return DSS_REG_R(&hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO], |
| 2862 | HDMI_HPD_INT_STATUS) & BIT(1) ? true : false; |
| 2863 | } |
| 2864 | |
| 2865 | static void hdmi_tx_hpd_polarity_setup(struct hdmi_tx_ctrl *hdmi_ctrl, |
| 2866 | bool polarity) |
| 2867 | { |
| 2868 | struct dss_io_data *io = NULL; |
| 2869 | bool cable_sense; |
| 2870 | |
| 2871 | if (!hdmi_ctrl) { |
| 2872 | DEV_ERR("%s: invalid input\n", __func__); |
| 2873 | return; |
| 2874 | } |
| 2875 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 2876 | if (!io->base) { |
| 2877 | DEV_ERR("%s: core io is not initialized\n", __func__); |
| 2878 | return; |
| 2879 | } |
| 2880 | |
| 2881 | if (hdmi_ctrl->sim_mode) { |
| 2882 | DEV_DBG("%s: sim mode enabled\n", __func__); |
| 2883 | return; |
| 2884 | } |
| 2885 | |
| 2886 | if (polarity) |
| 2887 | DSS_REG_W(io, HDMI_HPD_INT_CTRL, BIT(2) | BIT(1)); |
| 2888 | else |
| 2889 | DSS_REG_W(io, HDMI_HPD_INT_CTRL, BIT(2)); |
| 2890 | |
| 2891 | cable_sense = hdmi_tx_hw_is_cable_connected(hdmi_ctrl); |
| 2892 | DEV_DBG("%s: listen = %s, sense = %s\n", __func__, |
| 2893 | polarity ? "connect" : "disconnect", |
| 2894 | cable_sense ? "connect" : "disconnect"); |
| 2895 | |
| 2896 | if (cable_sense == polarity) { |
| 2897 | u32 reg_val = DSS_REG_R(io, HDMI_HPD_CTRL); |
| 2898 | |
| 2899 | /* Toggle HPD circuit to trigger HPD sense */ |
| 2900 | DSS_REG_W(io, HDMI_HPD_CTRL, reg_val & ~BIT(28)); |
| 2901 | DSS_REG_W(io, HDMI_HPD_CTRL, reg_val | BIT(28)); |
| 2902 | } |
| 2903 | } /* hdmi_tx_hpd_polarity_setup */ |
| 2904 | |
| 2905 | static inline void hdmi_tx_audio_off(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2906 | { |
| 2907 | if (hdmi_ctrl && hdmi_ctrl->audio_ops.off) |
| 2908 | hdmi_ctrl->audio_ops.off(hdmi_ctrl->audio_data); |
| 2909 | |
| 2910 | memset(&hdmi_ctrl->audio_params, 0, |
| 2911 | sizeof(struct msm_hdmi_audio_setup_params)); |
| 2912 | } |
| 2913 | |
| 2914 | static int hdmi_tx_power_off(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2915 | { |
| 2916 | struct dss_io_data *io = NULL; |
| 2917 | void *pdata = NULL; |
| 2918 | |
| 2919 | if (!hdmi_ctrl) { |
| 2920 | DEV_ERR("%s: invalid input\n", __func__); |
| 2921 | return -EINVAL; |
| 2922 | } |
| 2923 | |
| 2924 | pdata = hdmi_tx_get_fd(HDMI_TX_FEAT_PANEL); |
| 2925 | if (!pdata) { |
| 2926 | DEV_ERR("%s: invalid panel data\n", __func__); |
| 2927 | return -EINVAL; |
| 2928 | } |
| 2929 | |
| 2930 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 2931 | if (!io->base) { |
| 2932 | DEV_ERR("%s: Core io is not initialized\n", __func__); |
| 2933 | goto end; |
| 2934 | } |
| 2935 | |
| 2936 | if (!hdmi_ctrl->panel_power_on) { |
| 2937 | DEV_DBG("%s: hdmi_ctrl is already off\n", __func__); |
| 2938 | goto end; |
| 2939 | } |
| 2940 | |
| 2941 | if (!hdmi_tx_is_dvi_mode(hdmi_ctrl)) |
| 2942 | hdmi_tx_audio_off(hdmi_ctrl); |
| 2943 | |
| 2944 | if (hdmi_ctrl->panel_ops.off) |
| 2945 | hdmi_ctrl->panel_ops.off(pdata); |
| 2946 | |
| 2947 | hdmi_tx_core_off(hdmi_ctrl); |
| 2948 | |
| 2949 | hdmi_ctrl->panel_power_on = false; |
| 2950 | |
| 2951 | if (hdmi_ctrl->hpd_off_pending || hdmi_ctrl->panel_suspend || |
| 2952 | !hdmi_ctrl->pdata.pluggable) |
| 2953 | hdmi_tx_hpd_off(hdmi_ctrl); |
| 2954 | |
| 2955 | if (hdmi_ctrl->hdmi_tx_hpd_done) |
| 2956 | hdmi_ctrl->hdmi_tx_hpd_done( |
| 2957 | hdmi_ctrl->downstream_data); |
| 2958 | end: |
| 2959 | DEV_INFO("%s: HDMI Core: OFF\n", __func__); |
| 2960 | return 0; |
| 2961 | } /* hdmi_tx_power_off */ |
| 2962 | |
| 2963 | static int hdmi_tx_power_on(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 2964 | { |
| 2965 | int ret; |
| 2966 | u32 div = 0; |
| 2967 | struct mdss_panel_data *panel_data = &hdmi_ctrl->panel_data; |
| 2968 | void *pdata = hdmi_tx_get_fd(HDMI_TX_FEAT_PANEL); |
| 2969 | void *edata = hdmi_tx_get_fd(HDMI_TX_FEAT_EDID); |
| 2970 | |
| 2971 | if (!hdmi_ctrl->pdata.pluggable) |
| 2972 | hdmi_tx_hpd_on(hdmi_ctrl); |
| 2973 | |
| 2974 | ret = hdmi_tx_check_clk_state(hdmi_ctrl, HDMI_TX_HPD_PM); |
| 2975 | if (ret) { |
| 2976 | DEV_ERR("%s: clocks not on\n", __func__); |
| 2977 | return -EINVAL; |
| 2978 | } |
| 2979 | |
| 2980 | if (hdmi_ctrl->panel_ops.get_vic) |
| 2981 | hdmi_ctrl->vic = hdmi_ctrl->panel_ops.get_vic( |
| 2982 | &panel_data->panel_info, &hdmi_ctrl->ds_data); |
| 2983 | |
| 2984 | if (hdmi_ctrl->vic <= 0) { |
| 2985 | DEV_ERR("%s: invalid vic\n", __func__); |
| 2986 | return -EINVAL; |
| 2987 | } |
| 2988 | |
| 2989 | ret = hdmi_get_supported_mode(&hdmi_ctrl->timing, |
| 2990 | &hdmi_ctrl->ds_data, hdmi_ctrl->vic); |
| 2991 | if (ret || !hdmi_ctrl->timing.supported) { |
| 2992 | DEV_ERR("%s: invalid timing data\n", __func__); |
| 2993 | return -EINVAL; |
| 2994 | } |
| 2995 | |
| 2996 | hdmi_ctrl->panel.vic = hdmi_ctrl->vic; |
| 2997 | |
| 2998 | if (!hdmi_tx_is_dvi_mode(hdmi_ctrl) && |
| 2999 | hdmi_tx_is_cea_format(hdmi_ctrl->vic)) |
| 3000 | hdmi_ctrl->panel.infoframe = true; |
| 3001 | else |
| 3002 | hdmi_ctrl->panel.infoframe = false; |
| 3003 | |
| 3004 | hdmi_ctrl->panel.scan_info = hdmi_edid_get_sink_scaninfo(edata, |
| 3005 | hdmi_ctrl->vic); |
| 3006 | hdmi_ctrl->panel.scrambler = hdmi_edid_get_sink_scrambler_support( |
| 3007 | edata); |
| 3008 | |
| 3009 | if (hdmi_ctrl->panel_ops.on) |
| 3010 | hdmi_ctrl->panel_ops.on(pdata); |
| 3011 | |
| 3012 | if (panel_data->panel_info.out_format == MDP_Y_CBCR_H2V2) |
| 3013 | div = 1; |
| 3014 | |
| 3015 | hdmi_ctrl->pdata.power_data[HDMI_TX_CORE_PM].clk_config[0].rate = |
| 3016 | (hdmi_ctrl->timing.pixel_freq * 1000) >> div; |
| 3017 | |
| 3018 | hdmi_edid_set_video_resolution(hdmi_tx_get_fd(HDMI_TX_FEAT_EDID), |
| 3019 | hdmi_ctrl->vic, false); |
| 3020 | |
| 3021 | hdmi_tx_core_on(hdmi_ctrl); |
| 3022 | |
| 3023 | if (hdmi_ctrl->panel.infoframe && |
| 3024 | !hdmi_tx_is_encryption_set(hdmi_ctrl) && |
| 3025 | hdmi_tx_is_stream_shareable(hdmi_ctrl)) { |
| 3026 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 1); |
| 3027 | hdmi_tx_config_avmute(hdmi_ctrl, false); |
| 3028 | } |
| 3029 | |
| 3030 | hdmi_ctrl->panel_power_on = true; |
| 3031 | |
| 3032 | hdmi_tx_hpd_polarity_setup(hdmi_ctrl, HPD_DISCONNECT_POLARITY); |
| 3033 | |
| 3034 | if (hdmi_ctrl->hdmi_tx_hpd_done) |
| 3035 | hdmi_ctrl->hdmi_tx_hpd_done(hdmi_ctrl->downstream_data); |
| 3036 | |
| 3037 | DEV_DBG("%s: hdmi_ctrl core on\n", __func__); |
| 3038 | return 0; |
| 3039 | } |
| 3040 | |
| 3041 | static void hdmi_tx_hpd_off(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3042 | { |
| 3043 | int rc = 0; |
| 3044 | struct dss_io_data *io = NULL; |
| 3045 | unsigned long flags; |
| 3046 | |
| 3047 | if (!hdmi_ctrl) { |
| 3048 | DEV_ERR("%s: invalid input\n", __func__); |
| 3049 | return; |
| 3050 | } |
| 3051 | |
| 3052 | if (!hdmi_ctrl->hpd_initialized) { |
| 3053 | DEV_DBG("%s: HPD is already OFF, returning\n", __func__); |
| 3054 | return; |
| 3055 | } |
| 3056 | |
| 3057 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 3058 | if (!io->base) { |
| 3059 | DEV_ERR("%s: core io not inititalized\n", __func__); |
| 3060 | return; |
| 3061 | } |
| 3062 | |
| 3063 | /* Turn off HPD interrupts */ |
| 3064 | DSS_REG_W(io, HDMI_HPD_INT_CTRL, 0); |
| 3065 | |
| 3066 | /* non pluggable display should not enable wakeup interrupt */ |
| 3067 | if ((hdmi_tx_is_cec_wakeup_en(hdmi_ctrl) && |
| 3068 | hdmi_ctrl->pdata.pluggable)) { |
| 3069 | hdmi_ctrl->mdss_util->enable_wake_irq(&hdmi_tx_hw); |
| 3070 | } else { |
| 3071 | hdmi_ctrl->mdss_util->disable_irq(&hdmi_tx_hw); |
| 3072 | hdmi_tx_set_mode(hdmi_ctrl, false); |
| 3073 | } |
| 3074 | hdmi_tx_config_5v(hdmi_ctrl, false); |
| 3075 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_HPD_PM, 0); |
| 3076 | if (rc) |
| 3077 | DEV_INFO("%s: Failed to disable hpd power. Error=%d\n", |
| 3078 | __func__, rc); |
| 3079 | |
| 3080 | spin_lock_irqsave(&hdmi_ctrl->hpd_state_lock, flags); |
| 3081 | hdmi_ctrl->hpd_state = false; |
| 3082 | spin_unlock_irqrestore(&hdmi_ctrl->hpd_state_lock, flags); |
| 3083 | |
| 3084 | hdmi_ctrl->hpd_initialized = false; |
| 3085 | hdmi_ctrl->hpd_off_pending = false; |
| 3086 | |
| 3087 | DEV_DBG("%s: HPD is now OFF\n", __func__); |
| 3088 | } /* hdmi_tx_hpd_off */ |
| 3089 | |
| 3090 | static int hdmi_tx_hpd_on(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3091 | { |
| 3092 | u32 reg_val; |
| 3093 | int rc = 0; |
| 3094 | struct dss_io_data *io = NULL; |
| 3095 | |
| 3096 | if (!hdmi_ctrl) { |
| 3097 | DEV_ERR("%s: invalid input\n", __func__); |
| 3098 | return -EINVAL; |
| 3099 | } |
| 3100 | |
| 3101 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 3102 | if (!io->base) { |
| 3103 | DEV_ERR("%s: core io not inititalized\n", __func__); |
| 3104 | return -EINVAL; |
| 3105 | } |
| 3106 | |
| 3107 | if (hdmi_ctrl->hpd_initialized) { |
| 3108 | DEV_DBG("%s: HPD is already ON\n", __func__); |
| 3109 | } else { |
| 3110 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_HPD_PM, true); |
| 3111 | if (rc) { |
| 3112 | DEV_ERR("%s: Failed to enable hpd power. rc=%d\n", |
| 3113 | __func__, rc); |
| 3114 | return rc; |
| 3115 | } |
| 3116 | |
| 3117 | dss_reg_dump(io->base, io->len, "HDMI-INIT: ", REG_DUMP); |
| 3118 | |
| 3119 | if (!hdmi_ctrl->panel_data.panel_info.cont_splash_enabled) { |
| 3120 | hdmi_tx_set_mode(hdmi_ctrl, false); |
| 3121 | hdmi_tx_phy_reset(hdmi_ctrl); |
| 3122 | hdmi_tx_set_mode(hdmi_ctrl, true); |
| 3123 | } |
| 3124 | |
| 3125 | DSS_REG_W(io, HDMI_USEC_REFTIMER, 0x0001001B); |
| 3126 | |
| 3127 | if (hdmi_tx_is_cec_wakeup_en(hdmi_ctrl)) |
| 3128 | hdmi_ctrl->mdss_util->disable_wake_irq(&hdmi_tx_hw); |
| 3129 | |
| 3130 | hdmi_ctrl->mdss_util->enable_irq(&hdmi_tx_hw); |
| 3131 | |
| 3132 | hdmi_ctrl->hpd_initialized = true; |
| 3133 | |
| 3134 | DEV_INFO("%s: HDMI HW version = 0x%x\n", __func__, |
| 3135 | DSS_REG_R_ND(&hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO], |
| 3136 | HDMI_VERSION)); |
| 3137 | |
| 3138 | /* set timeout to 4.1ms (max) for hardware debounce */ |
| 3139 | reg_val = DSS_REG_R(io, HDMI_HPD_CTRL) | 0x1FFF; |
| 3140 | |
| 3141 | /* Turn on HPD HW circuit */ |
| 3142 | DSS_REG_W(io, HDMI_HPD_CTRL, reg_val | BIT(28)); |
| 3143 | |
| 3144 | hdmi_tx_hpd_polarity_setup(hdmi_ctrl, HPD_CONNECT_POLARITY); |
| 3145 | DEV_DBG("%s: HPD is now ON\n", __func__); |
| 3146 | } |
| 3147 | |
| 3148 | return rc; |
| 3149 | } /* hdmi_tx_hpd_on */ |
| 3150 | |
| 3151 | static int hdmi_tx_sysfs_enable_hpd(struct hdmi_tx_ctrl *hdmi_ctrl, int on) |
| 3152 | { |
| 3153 | int rc = 0; |
| 3154 | |
| 3155 | if (!hdmi_ctrl) { |
| 3156 | DEV_ERR("%s: invalid input\n", __func__); |
| 3157 | return -EINVAL; |
| 3158 | } |
| 3159 | |
| 3160 | DEV_DBG("%s: %d\n", __func__, on); |
| 3161 | if (on) { |
| 3162 | hdmi_ctrl->hpd_off_pending = false; |
| 3163 | rc = hdmi_tx_hpd_on(hdmi_ctrl); |
| 3164 | } else { |
| 3165 | if (!hdmi_ctrl->panel_power_on) |
| 3166 | hdmi_tx_hpd_off(hdmi_ctrl); |
| 3167 | else |
| 3168 | hdmi_ctrl->hpd_off_pending = true; |
| 3169 | } |
| 3170 | |
| 3171 | return rc; |
| 3172 | } /* hdmi_tx_sysfs_enable_hpd */ |
| 3173 | |
| 3174 | static int hdmi_tx_set_mhl_hpd(struct platform_device *pdev, uint8_t on) |
| 3175 | { |
| 3176 | int rc = 0; |
| 3177 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 3178 | |
| 3179 | hdmi_ctrl = platform_get_drvdata(pdev); |
| 3180 | |
| 3181 | if (!hdmi_ctrl) { |
| 3182 | DEV_ERR("%s: invalid input\n", __func__); |
| 3183 | return -EINVAL; |
| 3184 | } |
| 3185 | |
| 3186 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 3187 | |
| 3188 | /* mhl status should override */ |
| 3189 | hdmi_ctrl->mhl_hpd_on = on; |
| 3190 | |
| 3191 | if (!on && hdmi_ctrl->hpd_feature_on) { |
| 3192 | rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, false); |
| 3193 | } else if (on && !hdmi_ctrl->hpd_feature_on) { |
| 3194 | rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true); |
| 3195 | } else { |
| 3196 | DEV_DBG("%s: hpd is already '%s'. return\n", __func__, |
| 3197 | hdmi_ctrl->hpd_feature_on ? "enabled" : "disabled"); |
| 3198 | goto end; |
| 3199 | } |
| 3200 | |
| 3201 | if (!rc) { |
| 3202 | hdmi_ctrl->hpd_feature_on = |
| 3203 | (~hdmi_ctrl->hpd_feature_on) & BIT(0); |
| 3204 | DEV_DBG("%s: '%d'\n", __func__, hdmi_ctrl->hpd_feature_on); |
| 3205 | } else { |
| 3206 | DEV_ERR("%s: failed to '%s' hpd. rc = %d\n", __func__, |
| 3207 | on ? "enable" : "disable", rc); |
| 3208 | } |
| 3209 | end: |
| 3210 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 3211 | return rc; |
| 3212 | } |
| 3213 | |
| 3214 | static irqreturn_t hdmi_tx_isr(int irq, void *data) |
| 3215 | { |
| 3216 | struct dss_io_data *io = NULL; |
| 3217 | struct hdmi_tx_ctrl *hdmi_ctrl = (struct hdmi_tx_ctrl *)data; |
| 3218 | unsigned long flags; |
| 3219 | u32 hpd_current_state; |
| 3220 | u32 reg_val = 0; |
| 3221 | |
| 3222 | if (!hdmi_ctrl) { |
| 3223 | DEV_WARN("%s: invalid input data, ISR ignored\n", __func__); |
| 3224 | goto end; |
| 3225 | } |
| 3226 | |
| 3227 | io = &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO]; |
| 3228 | if (!io->base) { |
| 3229 | DEV_WARN("%s: core io not initialized, ISR ignored\n", |
| 3230 | __func__); |
| 3231 | goto end; |
| 3232 | } |
| 3233 | |
| 3234 | if (DSS_REG_R(io, HDMI_HPD_INT_STATUS) & BIT(0)) { |
| 3235 | spin_lock_irqsave(&hdmi_ctrl->hpd_state_lock, flags); |
| 3236 | hpd_current_state = hdmi_ctrl->hpd_state; |
| 3237 | hdmi_ctrl->hpd_state = |
| 3238 | (DSS_REG_R(io, HDMI_HPD_INT_STATUS) & BIT(1)) >> 1; |
| 3239 | spin_unlock_irqrestore(&hdmi_ctrl->hpd_state_lock, flags); |
| 3240 | |
| 3241 | if (!completion_done(&hdmi_ctrl->hpd_int_done)) |
| 3242 | complete_all(&hdmi_ctrl->hpd_int_done); |
| 3243 | |
| 3244 | /* |
| 3245 | * check if this is a spurious interrupt, if yes, reset |
| 3246 | * interrupts and return |
| 3247 | */ |
| 3248 | if (hpd_current_state == hdmi_ctrl->hpd_state) { |
| 3249 | DEV_DBG("%s: spurious interrupt %d\n", __func__, |
| 3250 | hpd_current_state); |
| 3251 | |
| 3252 | /* enable interrupts */ |
| 3253 | reg_val |= BIT(2); |
| 3254 | |
| 3255 | /* set polarity, reverse of current state */ |
| 3256 | reg_val |= (~hpd_current_state << 1) & BIT(1); |
| 3257 | |
| 3258 | /* ack interrupt */ |
| 3259 | reg_val |= BIT(0); |
| 3260 | |
| 3261 | DSS_REG_W(io, HDMI_HPD_INT_CTRL, reg_val); |
| 3262 | goto end; |
| 3263 | } |
| 3264 | |
| 3265 | /* |
| 3266 | * Ack the current hpd interrupt and stop listening to |
| 3267 | * new hpd interrupt. |
| 3268 | */ |
| 3269 | DSS_REG_W(io, HDMI_HPD_INT_CTRL, BIT(0)); |
| 3270 | |
| 3271 | queue_work(hdmi_ctrl->workq, &hdmi_ctrl->hpd_int_work); |
| 3272 | } |
| 3273 | |
| 3274 | if (hdmi_ddc_isr(&hdmi_ctrl->ddc_ctrl, |
| 3275 | hdmi_ctrl->hdmi_tx_ver)) |
| 3276 | DEV_ERR("%s: hdmi_ddc_isr failed\n", __func__); |
| 3277 | |
| 3278 | if (hdmi_tx_get_fd(HDMI_TX_FEAT_CEC_HW)) { |
| 3279 | if (hdmi_cec_isr(hdmi_tx_get_fd(HDMI_TX_FEAT_CEC_HW))) |
| 3280 | DEV_ERR("%s: hdmi_cec_isr failed\n", __func__); |
| 3281 | } |
| 3282 | |
| 3283 | if (hdmi_ctrl->hdcp_ops && hdmi_ctrl->hdcp_data) { |
| 3284 | if (hdmi_ctrl->hdcp_ops->hdmi_hdcp_isr) { |
| 3285 | if (hdmi_ctrl->hdcp_ops->hdmi_hdcp_isr( |
| 3286 | hdmi_ctrl->hdcp_data)) |
| 3287 | DEV_ERR("%s: hdmi_hdcp_isr failed\n", |
| 3288 | __func__); |
| 3289 | } |
| 3290 | } |
| 3291 | end: |
| 3292 | return IRQ_HANDLED; |
| 3293 | } /* hdmi_tx_isr */ |
| 3294 | |
| 3295 | static void hdmi_tx_dev_deinit(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3296 | { |
| 3297 | if (!hdmi_ctrl) { |
| 3298 | DEV_ERR("%s: invalid input\n", __func__); |
| 3299 | return; |
| 3300 | } |
| 3301 | |
| 3302 | hdmi_tx_deinit_features(hdmi_ctrl, HDMI_TX_FEAT_MAX); |
| 3303 | |
| 3304 | hdmi_ctrl->hdcp_ops = NULL; |
| 3305 | hdmi_ctrl->hdcp_data = NULL; |
| 3306 | |
Sachin Bhayare | 3d3767e | 2018-01-02 21:10:57 +0530 | [diff] [blame] | 3307 | extcon_dev_unregister(&hdmi_ctrl->sdev); |
Sachin Bhayare | eeb8889 | 2018-01-02 16:36:01 +0530 | [diff] [blame] | 3308 | if (hdmi_ctrl->workq) |
| 3309 | destroy_workqueue(hdmi_ctrl->workq); |
| 3310 | mutex_destroy(&hdmi_ctrl->tx_lock); |
| 3311 | mutex_destroy(&hdmi_ctrl->mutex); |
| 3312 | |
| 3313 | hdmi_tx_hw.ptr = NULL; |
| 3314 | } /* hdmi_tx_dev_deinit */ |
| 3315 | |
| 3316 | static int hdmi_tx_dev_init(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3317 | { |
| 3318 | int rc = 0; |
| 3319 | struct hdmi_tx_platform_data *pdata = NULL; |
| 3320 | |
| 3321 | if (!hdmi_ctrl) { |
| 3322 | DEV_ERR("%s: invalid input\n", __func__); |
| 3323 | return -EINVAL; |
| 3324 | } |
| 3325 | |
| 3326 | pdata = &hdmi_ctrl->pdata; |
| 3327 | |
| 3328 | rc = hdmi_tx_check_capability(hdmi_ctrl); |
| 3329 | if (rc) { |
| 3330 | DEV_ERR("%s: no HDMI device\n", __func__); |
| 3331 | goto fail_no_hdmi; |
| 3332 | } |
| 3333 | |
| 3334 | /* irq enable/disable will be handled in hpd on/off */ |
| 3335 | hdmi_tx_hw.ptr = (void *)hdmi_ctrl; |
| 3336 | |
| 3337 | mutex_init(&hdmi_ctrl->mutex); |
| 3338 | mutex_init(&hdmi_ctrl->tx_lock); |
| 3339 | |
| 3340 | INIT_LIST_HEAD(&hdmi_ctrl->cable_notify_handlers); |
| 3341 | |
| 3342 | hdmi_ctrl->workq = create_workqueue("hdmi_tx_workq"); |
| 3343 | if (!hdmi_ctrl->workq) { |
| 3344 | DEV_ERR("%s: hdmi_tx_workq creation failed.\n", __func__); |
| 3345 | rc = -EPERM; |
| 3346 | goto fail_create_workq; |
| 3347 | } |
| 3348 | |
| 3349 | hdmi_ctrl->ddc_ctrl.io = &pdata->io[HDMI_TX_CORE_IO]; |
| 3350 | init_completion(&hdmi_ctrl->ddc_ctrl.ddc_sw_done); |
| 3351 | |
| 3352 | hdmi_ctrl->panel_power_on = false; |
| 3353 | hdmi_ctrl->panel_suspend = false; |
| 3354 | |
| 3355 | hdmi_ctrl->hpd_state = false; |
| 3356 | hdmi_ctrl->hpd_initialized = false; |
| 3357 | hdmi_ctrl->hpd_off_pending = false; |
| 3358 | init_completion(&hdmi_ctrl->hpd_int_done); |
| 3359 | |
| 3360 | INIT_WORK(&hdmi_ctrl->hpd_int_work, hdmi_tx_hpd_int_work); |
| 3361 | INIT_WORK(&hdmi_ctrl->fps_work, hdmi_tx_fps_work); |
| 3362 | INIT_WORK(&hdmi_ctrl->cable_notify_work, hdmi_tx_cable_notify_work); |
| 3363 | INIT_DELAYED_WORK(&hdmi_ctrl->hdcp_cb_work, hdmi_tx_hdcp_cb_work); |
| 3364 | |
| 3365 | spin_lock_init(&hdmi_ctrl->hpd_state_lock); |
| 3366 | |
| 3367 | return 0; |
| 3368 | |
| 3369 | fail_create_workq: |
| 3370 | if (hdmi_ctrl->workq) |
| 3371 | destroy_workqueue(hdmi_ctrl->workq); |
| 3372 | mutex_destroy(&hdmi_ctrl->mutex); |
| 3373 | fail_no_hdmi: |
| 3374 | return rc; |
| 3375 | } /* hdmi_tx_dev_init */ |
| 3376 | |
| 3377 | static int hdmi_tx_start_hdcp(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3378 | { |
| 3379 | int rc; |
| 3380 | |
| 3381 | if (!hdmi_ctrl) { |
| 3382 | DEV_ERR("%s: invalid input\n", __func__); |
| 3383 | return -EINVAL; |
| 3384 | } |
| 3385 | |
| 3386 | if (hdmi_ctrl->panel_data.panel_info.cont_splash_enabled || |
| 3387 | !hdmi_tx_is_hdcp_enabled(hdmi_ctrl)) |
| 3388 | return 0; |
| 3389 | |
| 3390 | if (hdmi_tx_is_encryption_set(hdmi_ctrl)) |
| 3391 | hdmi_tx_config_avmute(hdmi_ctrl, true); |
| 3392 | |
| 3393 | rc = hdmi_ctrl->hdcp_ops->hdmi_hdcp_authenticate(hdmi_ctrl->hdcp_data); |
| 3394 | if (rc) |
| 3395 | DEV_ERR("%s: hdcp auth failed. rc=%d\n", __func__, rc); |
| 3396 | |
| 3397 | return rc; |
| 3398 | } |
| 3399 | |
| 3400 | static int hdmi_tx_init_switch_dev(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3401 | { |
| 3402 | int rc = -EINVAL; |
| 3403 | |
| 3404 | if (!hdmi_ctrl) { |
| 3405 | DEV_ERR("%s: invalid input\n", __func__); |
| 3406 | goto end; |
| 3407 | } |
| 3408 | |
| 3409 | hdmi_ctrl->sdev.name = "hdmi"; |
Sachin Bhayare | 3d3767e | 2018-01-02 21:10:57 +0530 | [diff] [blame] | 3410 | rc = extcon_set_state_sync(&hdmi_ctrl->sdev, EXTCON_DISP_HDMI, false); |
Sachin Bhayare | eeb8889 | 2018-01-02 16:36:01 +0530 | [diff] [blame] | 3411 | if (rc) { |
| 3412 | DEV_ERR("%s: display switch registration failed\n", __func__); |
| 3413 | goto end; |
| 3414 | } |
| 3415 | end: |
| 3416 | return rc; |
| 3417 | } |
| 3418 | |
| 3419 | static int hdmi_tx_hdcp_off(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3420 | { |
| 3421 | int rc = 0; |
| 3422 | |
| 3423 | if (!hdmi_ctrl) { |
| 3424 | DEV_ERR("%s: invalid input\n", __func__); |
| 3425 | return -EINVAL; |
| 3426 | } |
| 3427 | |
| 3428 | DEV_DBG("%s: Turning off HDCP\n", __func__); |
| 3429 | hdmi_ctrl->hdcp_ops->hdmi_hdcp_off( |
| 3430 | hdmi_ctrl->hdcp_data); |
| 3431 | |
| 3432 | hdmi_ctrl->hdcp_ops = NULL; |
| 3433 | |
| 3434 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, |
| 3435 | false); |
| 3436 | if (rc) |
| 3437 | DEV_ERR("%s: Failed to disable ddc power\n", |
| 3438 | __func__); |
| 3439 | |
| 3440 | return rc; |
| 3441 | } |
| 3442 | |
| 3443 | static char *hdmi_tx_get_event_name(int event) |
| 3444 | { |
| 3445 | switch (event) { |
| 3446 | case MDSS_EVENT_RESET: |
| 3447 | return HDMI_TX_EVT_STR(MDSS_EVENT_RESET); |
| 3448 | case MDSS_EVENT_LINK_READY: |
| 3449 | return HDMI_TX_EVT_STR(MDSS_EVENT_LINK_READY); |
| 3450 | case MDSS_EVENT_UNBLANK: |
| 3451 | return HDMI_TX_EVT_STR(MDSS_EVENT_UNBLANK); |
| 3452 | case MDSS_EVENT_PANEL_ON: |
| 3453 | return HDMI_TX_EVT_STR(MDSS_EVENT_PANEL_ON); |
| 3454 | case MDSS_EVENT_BLANK: |
| 3455 | return HDMI_TX_EVT_STR(MDSS_EVENT_BLANK); |
| 3456 | case MDSS_EVENT_PANEL_OFF: |
| 3457 | return HDMI_TX_EVT_STR(MDSS_EVENT_PANEL_OFF); |
| 3458 | case MDSS_EVENT_CLOSE: |
| 3459 | return HDMI_TX_EVT_STR(MDSS_EVENT_CLOSE); |
| 3460 | case MDSS_EVENT_SUSPEND: |
| 3461 | return HDMI_TX_EVT_STR(MDSS_EVENT_SUSPEND); |
| 3462 | case MDSS_EVENT_RESUME: |
| 3463 | return HDMI_TX_EVT_STR(MDSS_EVENT_RESUME); |
| 3464 | case MDSS_EVENT_CHECK_PARAMS: |
| 3465 | return HDMI_TX_EVT_STR(MDSS_EVENT_CHECK_PARAMS); |
| 3466 | case MDSS_EVENT_CONT_SPLASH_BEGIN: |
| 3467 | return HDMI_TX_EVT_STR(MDSS_EVENT_CONT_SPLASH_BEGIN); |
| 3468 | case MDSS_EVENT_CONT_SPLASH_FINISH: |
| 3469 | return HDMI_TX_EVT_STR(MDSS_EVENT_CONT_SPLASH_FINISH); |
| 3470 | case MDSS_EVENT_PANEL_UPDATE_FPS: |
| 3471 | return HDMI_TX_EVT_STR(MDSS_EVENT_PANEL_UPDATE_FPS); |
| 3472 | case MDSS_EVENT_FB_REGISTERED: |
| 3473 | return HDMI_TX_EVT_STR(MDSS_EVENT_FB_REGISTERED); |
| 3474 | case MDSS_EVENT_PANEL_CLK_CTRL: |
| 3475 | return HDMI_TX_EVT_STR(MDSS_EVENT_PANEL_CLK_CTRL); |
| 3476 | case MDSS_EVENT_DSI_CMDLIST_KOFF: |
| 3477 | return HDMI_TX_EVT_STR(MDSS_EVENT_DSI_CMDLIST_KOFF); |
| 3478 | case MDSS_EVENT_ENABLE_PARTIAL_ROI: |
| 3479 | return HDMI_TX_EVT_STR(MDSS_EVENT_ENABLE_PARTIAL_ROI); |
| 3480 | case MDSS_EVENT_DSI_STREAM_SIZE: |
| 3481 | return HDMI_TX_EVT_STR(MDSS_EVENT_DSI_STREAM_SIZE); |
| 3482 | case MDSS_EVENT_DSI_DYNAMIC_SWITCH: |
| 3483 | return HDMI_TX_EVT_STR(MDSS_EVENT_DSI_DYNAMIC_SWITCH); |
| 3484 | case MDSS_EVENT_REGISTER_RECOVERY_HANDLER: |
| 3485 | return HDMI_TX_EVT_STR(MDSS_EVENT_REGISTER_RECOVERY_HANDLER); |
| 3486 | default: |
| 3487 | return "unknown"; |
| 3488 | } |
| 3489 | } |
| 3490 | |
| 3491 | static void hdmi_tx_update_fps(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3492 | { |
| 3493 | void *pdata = NULL; |
| 3494 | struct mdss_panel_info *pinfo; |
| 3495 | |
| 3496 | if (!hdmi_ctrl) { |
| 3497 | DEV_ERR("%s: invalid input\n", __func__); |
| 3498 | return; |
| 3499 | } |
| 3500 | |
| 3501 | pdata = hdmi_tx_get_fd(HDMI_TX_FEAT_PANEL); |
| 3502 | if (!pdata) { |
| 3503 | DEV_ERR("%s: invalid panel data\n", __func__); |
| 3504 | return; |
| 3505 | } |
| 3506 | |
| 3507 | pinfo = &hdmi_ctrl->panel_data.panel_info; |
| 3508 | |
| 3509 | if (!pinfo->dynamic_fps) { |
| 3510 | DEV_DBG("%s: Dynamic fps not enabled\n", __func__); |
| 3511 | return; |
| 3512 | } |
| 3513 | |
| 3514 | DEV_DBG("%s: current fps %d, new fps %d\n", __func__, |
| 3515 | pinfo->current_fps, hdmi_ctrl->dynamic_fps); |
| 3516 | |
| 3517 | if (hdmi_ctrl->dynamic_fps == pinfo->current_fps) { |
| 3518 | DEV_DBG("%s: Panel is already at this FPS: %d\n", |
| 3519 | __func__, hdmi_ctrl->dynamic_fps); |
| 3520 | return; |
| 3521 | } |
| 3522 | |
| 3523 | if (hdmi_tx_is_hdcp_enabled(hdmi_ctrl)) |
| 3524 | hdmi_tx_hdcp_off(hdmi_ctrl); |
| 3525 | |
| 3526 | if (hdmi_ctrl->panel_ops.update_fps) |
| 3527 | hdmi_ctrl->vic = hdmi_ctrl->panel_ops.update_fps(pdata, |
| 3528 | hdmi_ctrl->dynamic_fps); |
| 3529 | |
| 3530 | hdmi_tx_update_pixel_clk(hdmi_ctrl); |
| 3531 | |
| 3532 | hdmi_tx_start_hdcp(hdmi_ctrl); |
| 3533 | } |
| 3534 | |
| 3535 | static void hdmi_tx_fps_work(struct work_struct *work) |
| 3536 | { |
| 3537 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 3538 | |
| 3539 | hdmi_ctrl = container_of(work, struct hdmi_tx_ctrl, fps_work); |
| 3540 | if (!hdmi_ctrl) { |
| 3541 | DEV_DBG("%s: invalid input\n", __func__); |
| 3542 | return; |
| 3543 | } |
| 3544 | |
| 3545 | hdmi_tx_update_fps(hdmi_ctrl); |
| 3546 | } |
| 3547 | |
| 3548 | static int hdmi_tx_evt_handle_register(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3549 | { |
| 3550 | int rc = 0; |
| 3551 | |
| 3552 | rc = hdmi_tx_sysfs_create(hdmi_ctrl, hdmi_ctrl->evt_arg); |
| 3553 | if (rc) { |
| 3554 | DEV_ERR("%s: hdmi_tx_sysfs_create failed.rc=%d\n", |
| 3555 | __func__, rc); |
| 3556 | goto sysfs_err; |
| 3557 | } |
| 3558 | rc = hdmi_tx_init_features(hdmi_ctrl, hdmi_ctrl->evt_arg); |
| 3559 | if (rc) { |
| 3560 | DEV_ERR("%s: init_features failed.rc=%d\n", __func__, rc); |
| 3561 | goto init_err; |
| 3562 | } |
| 3563 | |
| 3564 | rc = hdmi_tx_init_switch_dev(hdmi_ctrl); |
| 3565 | if (rc) { |
| 3566 | DEV_ERR("%s: init switch dev failed.rc=%d\n", __func__, rc); |
| 3567 | goto switch_err; |
| 3568 | } |
| 3569 | |
| 3570 | if (hdmi_ctrl->pdata.primary || !hdmi_ctrl->pdata.pluggable) { |
| 3571 | reinit_completion(&hdmi_ctrl->hpd_int_done); |
| 3572 | rc = hdmi_tx_sysfs_enable_hpd(hdmi_ctrl, true); |
| 3573 | if (rc) { |
| 3574 | DEV_ERR("%s: hpd_enable failed. rc=%d\n", __func__, rc); |
| 3575 | goto primary_err; |
| 3576 | } else { |
| 3577 | hdmi_ctrl->hpd_feature_on = true; |
| 3578 | } |
| 3579 | } |
| 3580 | |
| 3581 | return 0; |
| 3582 | |
| 3583 | primary_err: |
Sachin Bhayare | 3d3767e | 2018-01-02 21:10:57 +0530 | [diff] [blame] | 3584 | extcon_dev_unregister(&hdmi_ctrl->sdev); |
Sachin Bhayare | eeb8889 | 2018-01-02 16:36:01 +0530 | [diff] [blame] | 3585 | switch_err: |
| 3586 | hdmi_tx_deinit_features(hdmi_ctrl, HDMI_TX_FEAT_MAX); |
| 3587 | init_err: |
| 3588 | hdmi_tx_sysfs_remove(hdmi_ctrl); |
| 3589 | sysfs_err: |
| 3590 | return rc; |
| 3591 | } |
| 3592 | |
| 3593 | static int hdmi_tx_evt_handle_check_param(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3594 | { |
| 3595 | int new_vic = -1; |
| 3596 | int rc = 0; |
| 3597 | |
| 3598 | if (hdmi_ctrl->panel_ops.get_vic) |
| 3599 | new_vic = hdmi_ctrl->panel_ops.get_vic( |
| 3600 | hdmi_ctrl->evt_arg, &hdmi_ctrl->ds_data); |
| 3601 | |
| 3602 | if ((new_vic < 0) || (new_vic > HDMI_VFRMT_MAX)) { |
| 3603 | DEV_ERR("%s: invalid or not supported vic\n", __func__); |
| 3604 | goto end; |
| 3605 | } |
| 3606 | |
| 3607 | /* |
| 3608 | * return value of 1 lets mdss know that panel |
| 3609 | * needs a reconfig due to new resolution and |
| 3610 | * it will issue close and open subsequently. |
| 3611 | */ |
| 3612 | if (new_vic != hdmi_ctrl->vic) { |
| 3613 | rc = 1; |
| 3614 | DEV_DBG("%s: res change %d ==> %d\n", __func__, |
| 3615 | hdmi_ctrl->vic, new_vic); |
| 3616 | } |
| 3617 | end: |
| 3618 | return rc; |
| 3619 | } |
| 3620 | |
| 3621 | static int hdmi_tx_evt_handle_resume(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3622 | { |
| 3623 | int rc = 0; |
| 3624 | |
| 3625 | hdmi_ctrl->panel_suspend = false; |
| 3626 | hdmi_tx_cec_device_suspend(hdmi_ctrl); |
| 3627 | |
| 3628 | if (!hdmi_ctrl->hpd_feature_on) |
| 3629 | goto end; |
| 3630 | |
| 3631 | rc = hdmi_tx_hpd_on(hdmi_ctrl); |
| 3632 | if (rc) { |
| 3633 | DEV_ERR("%s: hpd_on failed. rc=%d\n", __func__, rc); |
| 3634 | goto end; |
| 3635 | } |
| 3636 | |
| 3637 | if (hdmi_ctrl->sdev.state && |
| 3638 | !hdmi_tx_hw_is_cable_connected(hdmi_ctrl)) { |
| 3639 | u32 timeout; |
| 3640 | |
| 3641 | reinit_completion(&hdmi_ctrl->hpd_int_done); |
| 3642 | timeout = wait_for_completion_timeout( |
| 3643 | &hdmi_ctrl->hpd_int_done, HZ/10); |
| 3644 | if (!timeout && !hdmi_ctrl->hpd_state) { |
| 3645 | DEV_DBG("%s: cable removed during suspend\n", __func__); |
| 3646 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0); |
| 3647 | hdmi_tx_wait_for_audio_engine(hdmi_ctrl); |
| 3648 | hdmi_tx_send_cable_notification(hdmi_ctrl, 0); |
| 3649 | } |
| 3650 | } |
| 3651 | end: |
| 3652 | return rc; |
| 3653 | } |
| 3654 | |
| 3655 | static int hdmi_tx_evt_handle_reset(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3656 | { |
| 3657 | if (!hdmi_ctrl->panel_data.panel_info.cont_splash_enabled && |
| 3658 | hdmi_ctrl->hpd_initialized) { |
| 3659 | hdmi_tx_set_mode(hdmi_ctrl, false); |
| 3660 | hdmi_tx_phy_reset(hdmi_ctrl); |
| 3661 | hdmi_tx_set_mode(hdmi_ctrl, true); |
| 3662 | } |
| 3663 | |
| 3664 | return 0; |
| 3665 | } |
| 3666 | |
| 3667 | static int hdmi_tx_evt_handle_unblank(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3668 | { |
| 3669 | int rc; |
| 3670 | |
| 3671 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, true); |
| 3672 | if (rc) { |
| 3673 | DEV_ERR("%s: ddc power on failed. rc=%d\n", __func__, rc); |
| 3674 | goto end; |
| 3675 | } |
| 3676 | |
| 3677 | rc = hdmi_tx_power_on(hdmi_ctrl); |
| 3678 | if (rc) |
| 3679 | DEV_ERR("%s: hdmi_tx_power_on failed. rc=%d\n", __func__, rc); |
| 3680 | end: |
| 3681 | return rc; |
| 3682 | } |
| 3683 | |
| 3684 | static int hdmi_tx_evt_handle_panel_on(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3685 | { |
| 3686 | int rc = 0; |
| 3687 | |
| 3688 | if (!hdmi_ctrl->sim_mode) { |
| 3689 | hdmi_tx_update_hdcp_info(hdmi_ctrl); |
| 3690 | |
| 3691 | rc = hdmi_tx_start_hdcp(hdmi_ctrl); |
| 3692 | if (rc) |
| 3693 | DEV_ERR("%s: hdcp start failed rc=%d\n", __func__, rc); |
| 3694 | } |
| 3695 | |
| 3696 | hdmi_ctrl->timing_gen_on = true; |
| 3697 | |
| 3698 | if (hdmi_ctrl->panel_suspend) { |
| 3699 | DEV_DBG("%s: panel suspend has triggered\n", __func__); |
| 3700 | |
| 3701 | hdmi_tx_set_audio_switch_node(hdmi_ctrl, 0); |
| 3702 | hdmi_tx_wait_for_audio_engine(hdmi_ctrl); |
| 3703 | hdmi_tx_send_cable_notification(hdmi_ctrl, 0); |
| 3704 | } |
| 3705 | |
| 3706 | return rc; |
| 3707 | } |
| 3708 | |
| 3709 | static int hdmi_tx_evt_handle_suspend(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3710 | { |
| 3711 | if ((!hdmi_ctrl->hpd_feature_on) || (hdmi_ctrl->panel_suspend == true)) |
| 3712 | goto end; |
| 3713 | |
| 3714 | if ((!hdmi_ctrl->hpd_state && !hdmi_ctrl->panel_power_on) || |
| 3715 | (hdmi_ctrl->hpd_state && !hdmi_ctrl->pdata.pluggable)) |
| 3716 | hdmi_tx_hpd_off(hdmi_ctrl); |
| 3717 | |
| 3718 | hdmi_ctrl->panel_suspend = true; |
| 3719 | hdmi_tx_cec_device_suspend(hdmi_ctrl); |
| 3720 | end: |
| 3721 | return 0; |
| 3722 | } |
| 3723 | |
| 3724 | static int hdmi_tx_evt_handle_blank(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3725 | { |
| 3726 | if (hdmi_tx_is_hdcp_enabled(hdmi_ctrl)) |
| 3727 | hdmi_tx_hdcp_off(hdmi_ctrl); |
| 3728 | |
| 3729 | return 0; |
| 3730 | } |
| 3731 | |
| 3732 | static int hdmi_tx_evt_handle_panel_off(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3733 | { |
| 3734 | int rc; |
| 3735 | |
| 3736 | rc = hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, false); |
| 3737 | if (rc) { |
| 3738 | DEV_ERR("%s: Failed to disable ddc power\n", __func__); |
| 3739 | goto end; |
| 3740 | } |
| 3741 | |
| 3742 | if (hdmi_ctrl->panel_power_on) { |
| 3743 | hdmi_tx_config_avmute(hdmi_ctrl, 1); |
| 3744 | rc = hdmi_tx_power_off(hdmi_ctrl); |
| 3745 | if (rc) |
| 3746 | DEV_ERR("%s: hdmi_tx_power_off failed.rc=%d\n", |
| 3747 | __func__, rc); |
| 3748 | } else { |
| 3749 | DEV_DBG("%s: hdmi_ctrl is already powered off\n", __func__); |
| 3750 | } |
| 3751 | |
| 3752 | hdmi_ctrl->timing_gen_on = false; |
| 3753 | end: |
| 3754 | return rc; |
| 3755 | } |
| 3756 | |
| 3757 | static int hdmi_tx_evt_handle_close(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3758 | { |
| 3759 | if (hdmi_ctrl->hpd_feature_on && hdmi_ctrl->hpd_initialized && |
| 3760 | !hdmi_ctrl->hpd_state) |
| 3761 | hdmi_tx_hpd_polarity_setup(hdmi_ctrl, HPD_CONNECT_POLARITY); |
| 3762 | |
| 3763 | return 0; |
| 3764 | } |
| 3765 | |
| 3766 | static int hdmi_tx_event_handler(struct mdss_panel_data *panel_data, |
| 3767 | int event, void *arg) |
| 3768 | { |
| 3769 | int rc = 0; |
| 3770 | hdmi_tx_evt_handler handler; |
| 3771 | struct hdmi_tx_ctrl *hdmi_ctrl = |
| 3772 | hdmi_tx_get_drvdata_from_panel_data(panel_data); |
| 3773 | |
| 3774 | if (!hdmi_ctrl) { |
| 3775 | DEV_ERR("%s: invalid input\n", __func__); |
| 3776 | rc = -EINVAL; |
| 3777 | goto end; |
| 3778 | } |
| 3779 | |
| 3780 | /* UPDATE FPS is called from atomic context */ |
| 3781 | if (event == MDSS_EVENT_PANEL_UPDATE_FPS) { |
| 3782 | hdmi_ctrl->dynamic_fps = (u32) (unsigned long)arg; |
| 3783 | DEV_DBG("%s: fps %d\n", __func__, hdmi_ctrl->dynamic_fps); |
| 3784 | queue_work(hdmi_ctrl->workq, &hdmi_ctrl->fps_work); |
| 3785 | return rc; |
| 3786 | } |
| 3787 | |
| 3788 | mutex_lock(&hdmi_ctrl->tx_lock); |
| 3789 | |
| 3790 | hdmi_ctrl->evt_arg = arg; |
| 3791 | |
| 3792 | DEV_DBG("%s: event = %s suspend=%d, hpd_feature=%d\n", __func__, |
| 3793 | hdmi_tx_get_event_name(event), hdmi_ctrl->panel_suspend, |
| 3794 | hdmi_ctrl->hpd_feature_on); |
| 3795 | |
| 3796 | handler = hdmi_ctrl->evt_handler[event]; |
| 3797 | if (handler) |
| 3798 | rc = handler(hdmi_ctrl); |
| 3799 | |
| 3800 | mutex_unlock(&hdmi_ctrl->tx_lock); |
| 3801 | end: |
| 3802 | return rc; |
| 3803 | } |
| 3804 | |
| 3805 | static int hdmi_tx_register_panel(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3806 | { |
| 3807 | int rc = 0; |
| 3808 | |
| 3809 | if (!hdmi_ctrl) { |
| 3810 | DEV_ERR("%s: invalid input\n", __func__); |
| 3811 | return -EINVAL; |
| 3812 | } |
| 3813 | |
| 3814 | hdmi_ctrl->panel_data.event_handler = hdmi_tx_event_handler; |
| 3815 | |
| 3816 | if (!hdmi_ctrl->pdata.primary) |
| 3817 | hdmi_ctrl->vic = DEFAULT_VIDEO_RESOLUTION; |
| 3818 | |
| 3819 | rc = hdmi_tx_init_panel_info(hdmi_ctrl); |
| 3820 | if (rc) { |
| 3821 | DEV_ERR("%s: hdmi_init_panel_info failed\n", __func__); |
| 3822 | return rc; |
| 3823 | } |
| 3824 | |
| 3825 | rc = mdss_register_panel(hdmi_ctrl->pdev, &hdmi_ctrl->panel_data); |
| 3826 | if (rc) { |
| 3827 | DEV_ERR("%s: FAILED: to register HDMI panel\n", __func__); |
| 3828 | return rc; |
| 3829 | } |
| 3830 | |
| 3831 | rc = hdmi_ctrl->mdss_util->register_irq(&hdmi_tx_hw); |
| 3832 | if (rc) |
| 3833 | DEV_ERR("%s: mdss_register_irq failed.\n", __func__); |
| 3834 | |
| 3835 | return rc; |
| 3836 | } /* hdmi_tx_register_panel */ |
| 3837 | |
| 3838 | static void hdmi_tx_deinit_resource(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3839 | { |
| 3840 | int i; |
| 3841 | |
| 3842 | if (!hdmi_ctrl) { |
| 3843 | DEV_ERR("%s: invalid input\n", __func__); |
| 3844 | return; |
| 3845 | } |
| 3846 | |
| 3847 | /* VREG & CLK */ |
| 3848 | for (i = HDMI_TX_MAX_PM - 1; i >= 0; i--) { |
| 3849 | if (hdmi_tx_config_power(hdmi_ctrl, i, 0)) |
| 3850 | DEV_ERR("%s: '%s' power deconfig fail\n", |
| 3851 | __func__, hdmi_tx_pm_name(i)); |
| 3852 | } |
| 3853 | |
| 3854 | /* IO */ |
| 3855 | for (i = HDMI_TX_MAX_IO - 1; i >= 0; i--) { |
| 3856 | if (hdmi_ctrl->pdata.io[i].base) |
| 3857 | msm_dss_iounmap(&hdmi_ctrl->pdata.io[i]); |
| 3858 | } |
| 3859 | } /* hdmi_tx_deinit_resource */ |
| 3860 | |
| 3861 | static int hdmi_tx_init_resource(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 3862 | { |
| 3863 | int i, rc = 0; |
| 3864 | struct hdmi_tx_platform_data *pdata = NULL; |
| 3865 | |
| 3866 | if (!hdmi_ctrl) { |
| 3867 | DEV_ERR("%s: invalid input\n", __func__); |
| 3868 | return -EINVAL; |
| 3869 | } |
| 3870 | |
| 3871 | pdata = &hdmi_ctrl->pdata; |
| 3872 | |
| 3873 | hdmi_tx_pinctrl_init(hdmi_ctrl->pdev); |
| 3874 | |
| 3875 | /* IO */ |
| 3876 | for (i = 0; i < HDMI_TX_MAX_IO; i++) { |
| 3877 | rc = msm_dss_ioremap_byname(hdmi_ctrl->pdev, &pdata->io[i], |
| 3878 | hdmi_tx_io_name(i)); |
| 3879 | if (rc) { |
| 3880 | DEV_DBG("%s: '%s' remap failed or not available\n", |
| 3881 | __func__, hdmi_tx_io_name(i)); |
| 3882 | } |
| 3883 | DEV_INFO("%s: '%s': start = 0x%pK, len=0x%x\n", __func__, |
| 3884 | hdmi_tx_io_name(i), pdata->io[i].base, |
| 3885 | pdata->io[i].len); |
| 3886 | } |
| 3887 | |
| 3888 | /* VREG & CLK */ |
| 3889 | for (i = 0; i < HDMI_TX_MAX_PM; i++) { |
| 3890 | rc = hdmi_tx_config_power(hdmi_ctrl, i, 1); |
| 3891 | if (rc) { |
| 3892 | DEV_ERR("%s: '%s' power config failed.rc=%d\n", |
| 3893 | __func__, hdmi_tx_pm_name(i), rc); |
| 3894 | goto error; |
| 3895 | } |
| 3896 | } |
| 3897 | |
| 3898 | return rc; |
| 3899 | |
| 3900 | error: |
| 3901 | hdmi_tx_deinit_resource(hdmi_ctrl); |
| 3902 | return rc; |
| 3903 | } /* hdmi_tx_init_resource */ |
| 3904 | |
| 3905 | static void hdmi_tx_put_dt_clk_data(struct device *dev, |
| 3906 | struct dss_module_power *module_power) |
| 3907 | { |
| 3908 | if (!module_power) { |
| 3909 | DEV_ERR("%s: invalid input\n", __func__); |
| 3910 | return; |
| 3911 | } |
| 3912 | |
| 3913 | if (module_power->clk_config) { |
| 3914 | devm_kfree(dev, module_power->clk_config); |
| 3915 | module_power->clk_config = NULL; |
| 3916 | } |
| 3917 | module_power->num_clk = 0; |
| 3918 | } /* hdmi_tx_put_dt_clk_data */ |
| 3919 | |
| 3920 | /* todo: once clk are moved to device tree then change this implementation */ |
| 3921 | static int hdmi_tx_get_dt_clk_data(struct device *dev, |
| 3922 | struct dss_module_power *mp, u32 module_type) |
| 3923 | { |
| 3924 | int rc = 0; |
| 3925 | |
| 3926 | if (!dev || !mp) { |
| 3927 | DEV_ERR("%s: invalid input\n", __func__); |
| 3928 | return -EINVAL; |
| 3929 | } |
| 3930 | |
| 3931 | DEV_DBG("%s: module: '%s'\n", __func__, hdmi_tx_pm_name(module_type)); |
| 3932 | |
| 3933 | switch (module_type) { |
| 3934 | case HDMI_TX_HPD_PM: |
| 3935 | mp->num_clk = 4; |
| 3936 | mp->clk_config = devm_kzalloc(dev, sizeof(struct dss_clk) * |
| 3937 | mp->num_clk, GFP_KERNEL); |
| 3938 | if (!mp->clk_config) { |
| 3939 | DEV_ERR("%s: can't alloc '%s' clk mem\n", __func__, |
| 3940 | hdmi_tx_pm_name(module_type)); |
| 3941 | goto error; |
| 3942 | } |
| 3943 | |
| 3944 | snprintf(mp->clk_config[0].clk_name, 32, "%s", "iface_clk"); |
| 3945 | mp->clk_config[0].type = DSS_CLK_AHB; |
| 3946 | mp->clk_config[0].rate = 0; |
| 3947 | |
| 3948 | snprintf(mp->clk_config[1].clk_name, 32, "%s", "core_clk"); |
| 3949 | mp->clk_config[1].type = DSS_CLK_OTHER; |
| 3950 | mp->clk_config[1].rate = 19200000; |
| 3951 | |
| 3952 | /* |
| 3953 | * This clock is required to clock MDSS interrupt registers |
| 3954 | * when HDMI is the only block turned on within MDSS. Since |
| 3955 | * rate for this clock is controlled by MDP driver, treat this |
| 3956 | * similar to AHB clock and do not set rate for it. |
| 3957 | */ |
| 3958 | snprintf(mp->clk_config[2].clk_name, 32, "%s", "mdp_core_clk"); |
| 3959 | mp->clk_config[2].type = DSS_CLK_AHB; |
| 3960 | mp->clk_config[2].rate = 0; |
| 3961 | |
| 3962 | snprintf(mp->clk_config[3].clk_name, 32, "%s", "alt_iface_clk"); |
| 3963 | mp->clk_config[3].type = DSS_CLK_AHB; |
| 3964 | mp->clk_config[3].rate = 0; |
| 3965 | break; |
| 3966 | |
| 3967 | case HDMI_TX_CORE_PM: |
| 3968 | mp->num_clk = 1; |
| 3969 | mp->clk_config = devm_kzalloc(dev, sizeof(struct dss_clk) * |
| 3970 | mp->num_clk, GFP_KERNEL); |
| 3971 | if (!mp->clk_config) { |
| 3972 | DEV_ERR("%s: can't alloc '%s' clk mem\n", __func__, |
| 3973 | hdmi_tx_pm_name(module_type)); |
| 3974 | goto error; |
| 3975 | } |
| 3976 | |
| 3977 | snprintf(mp->clk_config[0].clk_name, 32, "%s", "extp_clk"); |
| 3978 | mp->clk_config[0].type = DSS_CLK_PCLK; |
| 3979 | /* This rate will be overwritten when core is powered on */ |
| 3980 | mp->clk_config[0].rate = 148500000; |
| 3981 | break; |
| 3982 | |
| 3983 | case HDMI_TX_DDC_PM: |
| 3984 | case HDMI_TX_CEC_PM: |
| 3985 | mp->num_clk = 0; |
| 3986 | DEV_DBG("%s: no clk\n", __func__); |
| 3987 | break; |
| 3988 | |
| 3989 | default: |
| 3990 | DEV_ERR("%s: invalid module type=%d\n", __func__, |
| 3991 | module_type); |
| 3992 | return -EINVAL; |
| 3993 | } |
| 3994 | |
| 3995 | return rc; |
| 3996 | |
| 3997 | error: |
| 3998 | if (mp->clk_config) { |
| 3999 | devm_kfree(dev, mp->clk_config); |
| 4000 | mp->clk_config = NULL; |
| 4001 | } |
| 4002 | mp->num_clk = 0; |
| 4003 | |
| 4004 | return rc; |
| 4005 | } /* hdmi_tx_get_dt_clk_data */ |
| 4006 | |
| 4007 | static void hdmi_tx_put_dt_vreg_data(struct device *dev, |
| 4008 | struct dss_module_power *module_power) |
| 4009 | { |
| 4010 | if (!module_power) { |
| 4011 | DEV_ERR("%s: invalid input\n", __func__); |
| 4012 | return; |
| 4013 | } |
| 4014 | |
| 4015 | if (module_power->vreg_config) { |
| 4016 | devm_kfree(dev, module_power->vreg_config); |
| 4017 | module_power->vreg_config = NULL; |
| 4018 | } |
| 4019 | module_power->num_vreg = 0; |
| 4020 | } /* hdmi_tx_put_dt_vreg_data */ |
| 4021 | |
| 4022 | static int hdmi_tx_get_dt_vreg_data(struct device *dev, |
| 4023 | struct dss_module_power *mp, u32 module_type) |
| 4024 | { |
| 4025 | int i, j, rc = 0; |
| 4026 | int dt_vreg_total = 0, mod_vreg_total = 0; |
| 4027 | u32 ndx_mask = 0; |
| 4028 | u32 *val_array = NULL; |
| 4029 | const char *mod_name = NULL; |
| 4030 | struct device_node *of_node = NULL; |
| 4031 | |
| 4032 | if (!dev || !mp) { |
| 4033 | DEV_ERR("%s: invalid input\n", __func__); |
| 4034 | return -EINVAL; |
| 4035 | } |
| 4036 | |
| 4037 | switch (module_type) { |
| 4038 | case HDMI_TX_HPD_PM: |
| 4039 | mod_name = "hpd"; |
| 4040 | break; |
| 4041 | case HDMI_TX_DDC_PM: |
| 4042 | mod_name = "ddc"; |
| 4043 | break; |
| 4044 | case HDMI_TX_CORE_PM: |
| 4045 | mod_name = "core"; |
| 4046 | break; |
| 4047 | case HDMI_TX_CEC_PM: |
| 4048 | mod_name = "cec"; |
| 4049 | break; |
| 4050 | default: |
| 4051 | DEV_ERR("%s: invalid module type=%d\n", __func__, |
| 4052 | module_type); |
| 4053 | return -EINVAL; |
| 4054 | } |
| 4055 | |
| 4056 | DEV_DBG("%s: module: '%s'\n", __func__, hdmi_tx_pm_name(module_type)); |
| 4057 | |
| 4058 | of_node = dev->of_node; |
| 4059 | |
| 4060 | dt_vreg_total = of_property_count_strings(of_node, "qcom,supply-names"); |
| 4061 | if (dt_vreg_total < 0) { |
| 4062 | DEV_ERR("%s: vreg not found. rc=%d\n", __func__, |
| 4063 | dt_vreg_total); |
| 4064 | rc = dt_vreg_total; |
| 4065 | goto error; |
| 4066 | } |
| 4067 | |
| 4068 | /* count how many vreg for particular hdmi module */ |
| 4069 | for (i = 0; i < dt_vreg_total; i++) { |
| 4070 | const char *st = NULL; |
| 4071 | |
| 4072 | rc = of_property_read_string_index(of_node, |
| 4073 | "qcom,supply-names", i, &st); |
| 4074 | if (rc) { |
| 4075 | DEV_ERR("%s: error reading name. i=%d, rc=%d\n", |
| 4076 | __func__, i, rc); |
| 4077 | goto error; |
| 4078 | } |
| 4079 | |
| 4080 | if (strnstr(st, mod_name, strlen(st))) { |
| 4081 | ndx_mask |= BIT(i); |
| 4082 | mod_vreg_total++; |
| 4083 | } |
| 4084 | } |
| 4085 | |
| 4086 | if (mod_vreg_total > 0) { |
| 4087 | mp->num_vreg = mod_vreg_total; |
| 4088 | mp->vreg_config = devm_kzalloc(dev, sizeof(struct dss_vreg) * |
| 4089 | mod_vreg_total, GFP_KERNEL); |
| 4090 | if (!mp->vreg_config) { |
| 4091 | DEV_ERR("%s: can't alloc '%s' vreg mem\n", __func__, |
| 4092 | hdmi_tx_pm_name(module_type)); |
| 4093 | goto error; |
| 4094 | } |
| 4095 | } else { |
| 4096 | DEV_DBG("%s: no vreg\n", __func__); |
| 4097 | return 0; |
| 4098 | } |
| 4099 | |
| 4100 | val_array = devm_kzalloc(dev, sizeof(u32) * dt_vreg_total, GFP_KERNEL); |
| 4101 | if (!val_array) { |
| 4102 | DEV_ERR("%s: can't allocate vreg scratch mem\n", __func__); |
| 4103 | rc = -ENOMEM; |
| 4104 | goto error; |
| 4105 | } |
| 4106 | |
| 4107 | for (i = 0, j = 0; (i < dt_vreg_total) && (j < mod_vreg_total); i++) { |
| 4108 | const char *st = NULL; |
| 4109 | |
| 4110 | if (!(ndx_mask & BIT(0))) { |
| 4111 | ndx_mask >>= 1; |
| 4112 | continue; |
| 4113 | } |
| 4114 | |
| 4115 | /* vreg-name */ |
| 4116 | rc = of_property_read_string_index(of_node, |
| 4117 | "qcom,supply-names", i, &st); |
| 4118 | if (rc) { |
| 4119 | DEV_ERR("%s: error reading name. i=%d, rc=%d\n", |
| 4120 | __func__, i, rc); |
| 4121 | goto error; |
| 4122 | } |
| 4123 | snprintf(mp->vreg_config[j].vreg_name, 32, "%s", st); |
| 4124 | |
| 4125 | /* vreg-min-voltage */ |
| 4126 | memset(val_array, 0, sizeof(u32) * dt_vreg_total); |
| 4127 | rc = of_property_read_u32_array(of_node, |
| 4128 | "qcom,min-voltage-level", val_array, |
| 4129 | dt_vreg_total); |
| 4130 | if (rc) { |
| 4131 | DEV_ERR("%s: error read '%s' min volt. rc=%d\n", |
| 4132 | __func__, hdmi_tx_pm_name(module_type), rc); |
| 4133 | goto error; |
| 4134 | } |
| 4135 | mp->vreg_config[j].min_voltage = val_array[i]; |
| 4136 | |
| 4137 | /* vreg-max-voltage */ |
| 4138 | memset(val_array, 0, sizeof(u32) * dt_vreg_total); |
| 4139 | rc = of_property_read_u32_array(of_node, |
| 4140 | "qcom,max-voltage-level", val_array, |
| 4141 | dt_vreg_total); |
| 4142 | if (rc) { |
| 4143 | DEV_ERR("%s: error read '%s' max volt. rc=%d\n", |
| 4144 | __func__, hdmi_tx_pm_name(module_type), rc); |
| 4145 | goto error; |
| 4146 | } |
| 4147 | mp->vreg_config[j].max_voltage = val_array[i]; |
| 4148 | |
| 4149 | /* vreg-op-mode */ |
| 4150 | memset(val_array, 0, sizeof(u32) * dt_vreg_total); |
| 4151 | rc = of_property_read_u32_array(of_node, |
| 4152 | "qcom,enable-load", val_array, |
| 4153 | dt_vreg_total); |
| 4154 | if (rc) { |
| 4155 | DEV_ERR("%s: error read '%s' enable load. rc=%d\n", |
| 4156 | __func__, hdmi_tx_pm_name(module_type), rc); |
| 4157 | goto error; |
| 4158 | } |
| 4159 | mp->vreg_config[j].load[DSS_REG_MODE_ENABLE] = val_array[i]; |
| 4160 | |
| 4161 | memset(val_array, 0, sizeof(u32) * dt_vreg_total); |
| 4162 | rc = of_property_read_u32_array(of_node, |
| 4163 | "qcom,disable-load", val_array, |
| 4164 | dt_vreg_total); |
| 4165 | if (rc) { |
| 4166 | DEV_ERR("%s: error read '%s' disable load. rc=%d\n", |
| 4167 | __func__, hdmi_tx_pm_name(module_type), rc); |
| 4168 | goto error; |
| 4169 | } |
| 4170 | mp->vreg_config[j].load[DSS_REG_MODE_DISABLE] = val_array[i]; |
| 4171 | |
| 4172 | DEV_DBG("%s: %s min=%d, max=%d, enable=%d disable=%d\n", |
| 4173 | __func__, |
| 4174 | mp->vreg_config[j].vreg_name, |
| 4175 | mp->vreg_config[j].min_voltage, |
| 4176 | mp->vreg_config[j].max_voltage, |
| 4177 | mp->vreg_config[j].load[DSS_REG_MODE_ENABLE], |
| 4178 | mp->vreg_config[j].load[DSS_REG_MODE_DISABLE]); |
| 4179 | |
| 4180 | ndx_mask >>= 1; |
| 4181 | j++; |
| 4182 | } |
| 4183 | |
| 4184 | devm_kfree(dev, val_array); |
| 4185 | |
| 4186 | return rc; |
| 4187 | |
| 4188 | error: |
| 4189 | if (mp->vreg_config) { |
| 4190 | devm_kfree(dev, mp->vreg_config); |
| 4191 | mp->vreg_config = NULL; |
| 4192 | } |
| 4193 | mp->num_vreg = 0; |
| 4194 | |
| 4195 | if (val_array) |
| 4196 | devm_kfree(dev, val_array); |
| 4197 | return rc; |
| 4198 | } /* hdmi_tx_get_dt_vreg_data */ |
| 4199 | |
| 4200 | static void hdmi_tx_put_dt_gpio_data(struct device *dev, |
| 4201 | struct dss_module_power *module_power) |
| 4202 | { |
| 4203 | if (!module_power) { |
| 4204 | DEV_ERR("%s: invalid input\n", __func__); |
| 4205 | return; |
| 4206 | } |
| 4207 | |
| 4208 | if (module_power->gpio_config) { |
| 4209 | devm_kfree(dev, module_power->gpio_config); |
| 4210 | module_power->gpio_config = NULL; |
| 4211 | } |
| 4212 | module_power->num_gpio = 0; |
| 4213 | } /* hdmi_tx_put_dt_gpio_data */ |
| 4214 | |
| 4215 | static int hdmi_tx_get_dt_gpio_data(struct device *dev, |
| 4216 | struct dss_module_power *mp, u32 module_type) |
| 4217 | { |
| 4218 | int i, j; |
| 4219 | int mp_gpio_cnt = 0, gpio_list_size = 0; |
| 4220 | struct dss_gpio *gpio_list = NULL; |
| 4221 | struct device_node *of_node = NULL; |
| 4222 | |
| 4223 | DEV_DBG("%s: module: '%s'\n", __func__, hdmi_tx_pm_name(module_type)); |
| 4224 | |
| 4225 | if (!dev || !mp) { |
| 4226 | DEV_ERR("%s: invalid input\n", __func__); |
| 4227 | return -EINVAL; |
| 4228 | } |
| 4229 | |
| 4230 | of_node = dev->of_node; |
| 4231 | |
| 4232 | switch (module_type) { |
| 4233 | case HDMI_TX_HPD_PM: |
| 4234 | gpio_list_size = ARRAY_SIZE(hpd_gpio_config); |
| 4235 | gpio_list = hpd_gpio_config; |
| 4236 | break; |
| 4237 | case HDMI_TX_DDC_PM: |
| 4238 | gpio_list_size = ARRAY_SIZE(ddc_gpio_config); |
| 4239 | gpio_list = ddc_gpio_config; |
| 4240 | break; |
| 4241 | case HDMI_TX_CORE_PM: |
| 4242 | gpio_list_size = ARRAY_SIZE(core_gpio_config); |
| 4243 | gpio_list = core_gpio_config; |
| 4244 | break; |
| 4245 | case HDMI_TX_CEC_PM: |
| 4246 | gpio_list_size = ARRAY_SIZE(cec_gpio_config); |
| 4247 | gpio_list = cec_gpio_config; |
| 4248 | break; |
| 4249 | default: |
| 4250 | DEV_ERR("%s: invalid module type=%d\n", __func__, |
| 4251 | module_type); |
| 4252 | return -EINVAL; |
| 4253 | } |
| 4254 | |
| 4255 | for (i = 0; i < gpio_list_size; i++) |
| 4256 | if (of_find_property(of_node, gpio_list[i].gpio_name, NULL)) |
| 4257 | mp_gpio_cnt++; |
| 4258 | |
| 4259 | if (!mp_gpio_cnt) { |
| 4260 | DEV_DBG("%s: no gpio\n", __func__); |
| 4261 | return 0; |
| 4262 | } |
| 4263 | |
| 4264 | DEV_DBG("%s: mp_gpio_cnt = %d\n", __func__, mp_gpio_cnt); |
| 4265 | mp->num_gpio = mp_gpio_cnt; |
| 4266 | |
| 4267 | mp->gpio_config = devm_kzalloc(dev, sizeof(struct dss_gpio) * |
| 4268 | mp_gpio_cnt, GFP_KERNEL); |
| 4269 | if (!mp->gpio_config) { |
| 4270 | DEV_ERR("%s: can't alloc '%s' gpio mem\n", __func__, |
| 4271 | hdmi_tx_pm_name(module_type)); |
| 4272 | |
| 4273 | mp->num_gpio = 0; |
| 4274 | return -ENOMEM; |
| 4275 | } |
| 4276 | |
| 4277 | for (i = 0, j = 0; i < gpio_list_size; i++) { |
| 4278 | int gpio = of_get_named_gpio(of_node, |
| 4279 | gpio_list[i].gpio_name, 0); |
| 4280 | if (gpio < 0) { |
| 4281 | DEV_DBG("%s: no gpio named %s\n", __func__, |
| 4282 | gpio_list[i].gpio_name); |
| 4283 | continue; |
| 4284 | } |
| 4285 | memcpy(&mp->gpio_config[j], &gpio_list[i], |
| 4286 | sizeof(struct dss_gpio)); |
| 4287 | |
| 4288 | mp->gpio_config[j].gpio = (unsigned int)gpio; |
| 4289 | |
| 4290 | DEV_DBG("%s: gpio num=%d, name=%s, value=%d\n", |
| 4291 | __func__, mp->gpio_config[j].gpio, |
| 4292 | mp->gpio_config[j].gpio_name, |
| 4293 | mp->gpio_config[j].value); |
| 4294 | j++; |
| 4295 | } |
| 4296 | |
| 4297 | return 0; |
| 4298 | } /* hdmi_tx_get_dt_gpio_data */ |
| 4299 | |
| 4300 | static void hdmi_tx_put_dt_data(struct device *dev, |
| 4301 | struct hdmi_tx_platform_data *pdata) |
| 4302 | { |
| 4303 | int i; |
| 4304 | |
| 4305 | if (!dev || !pdata) { |
| 4306 | DEV_ERR("%s: invalid input\n", __func__); |
| 4307 | return; |
| 4308 | } |
| 4309 | |
| 4310 | for (i = HDMI_TX_MAX_PM - 1; i >= 0; i--) |
| 4311 | hdmi_tx_put_dt_clk_data(dev, &pdata->power_data[i]); |
| 4312 | |
| 4313 | for (i = HDMI_TX_MAX_PM - 1; i >= 0; i--) |
| 4314 | hdmi_tx_put_dt_vreg_data(dev, &pdata->power_data[i]); |
| 4315 | |
| 4316 | for (i = HDMI_TX_MAX_PM - 1; i >= 0; i--) |
| 4317 | hdmi_tx_put_dt_gpio_data(dev, &pdata->power_data[i]); |
| 4318 | } /* hdmi_tx_put_dt_data */ |
| 4319 | |
| 4320 | static int hdmi_tx_get_dt_data(struct platform_device *pdev, |
| 4321 | struct hdmi_tx_platform_data *pdata) |
| 4322 | { |
| 4323 | int i, rc = 0, len = 0; |
| 4324 | struct device_node *of_node = NULL; |
| 4325 | struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev); |
| 4326 | const char *data; |
| 4327 | |
| 4328 | if (!pdev || !pdata) { |
| 4329 | DEV_ERR("%s: invalid input\n", __func__); |
| 4330 | return -EINVAL; |
| 4331 | } |
| 4332 | |
| 4333 | of_node = pdev->dev.of_node; |
| 4334 | |
| 4335 | rc = of_property_read_u32(of_node, "cell-index", &pdev->id); |
| 4336 | if (rc) { |
| 4337 | DEV_ERR("%s: dev id from dt not found.rc=%d\n", |
| 4338 | __func__, rc); |
| 4339 | goto error; |
| 4340 | } |
| 4341 | DEV_DBG("%s: id=%d\n", __func__, pdev->id); |
| 4342 | |
| 4343 | /* GPIO */ |
| 4344 | for (i = 0; i < HDMI_TX_MAX_PM; i++) { |
| 4345 | rc = hdmi_tx_get_dt_gpio_data(&pdev->dev, |
| 4346 | &pdata->power_data[i], i); |
| 4347 | if (rc) { |
| 4348 | DEV_ERR("%s: '%s' get_dt_gpio_data failed.rc=%d\n", |
| 4349 | __func__, hdmi_tx_pm_name(i), rc); |
| 4350 | goto error; |
| 4351 | } |
| 4352 | } |
| 4353 | |
| 4354 | /* VREG */ |
| 4355 | for (i = 0; i < HDMI_TX_MAX_PM; i++) { |
| 4356 | rc = hdmi_tx_get_dt_vreg_data(&pdev->dev, |
| 4357 | &pdata->power_data[i], i); |
| 4358 | if (rc) { |
| 4359 | DEV_ERR("%s: '%s' get_dt_vreg_data failed.rc=%d\n", |
| 4360 | __func__, hdmi_tx_pm_name(i), rc); |
| 4361 | goto error; |
| 4362 | } |
| 4363 | } |
| 4364 | |
| 4365 | /* CLK */ |
| 4366 | for (i = 0; i < HDMI_TX_MAX_PM; i++) { |
| 4367 | rc = hdmi_tx_get_dt_clk_data(&pdev->dev, |
| 4368 | &pdata->power_data[i], i); |
| 4369 | if (rc) { |
| 4370 | DEV_ERR("%s: '%s' get_dt_clk_data failed.rc=%d\n", |
| 4371 | __func__, hdmi_tx_pm_name(i), rc); |
| 4372 | goto error; |
| 4373 | } |
| 4374 | } |
| 4375 | |
| 4376 | if (!hdmi_ctrl->pdata.primary) |
| 4377 | hdmi_ctrl->pdata.primary = of_property_read_bool( |
| 4378 | pdev->dev.of_node, "qcom,primary_panel"); |
| 4379 | |
| 4380 | pdata->cond_power_on = of_property_read_bool(pdev->dev.of_node, |
| 4381 | "qcom,conditional-power-on"); |
| 4382 | |
| 4383 | pdata->pluggable = of_property_read_bool(pdev->dev.of_node, |
| 4384 | "qcom,pluggable"); |
| 4385 | |
| 4386 | data = of_get_property(pdev->dev.of_node, "qcom,display-id", &len); |
| 4387 | if (!data || len <= 0) |
| 4388 | pr_err("%s:%d Unable to read qcom,display-id, data=%pK,len=%d\n", |
| 4389 | __func__, __LINE__, data, len); |
| 4390 | else |
| 4391 | snprintf(hdmi_ctrl->panel_data.panel_info.display_id, |
| 4392 | MDSS_DISPLAY_ID_MAX_LEN, "%s", data); |
| 4393 | |
| 4394 | return rc; |
| 4395 | |
| 4396 | error: |
| 4397 | hdmi_tx_put_dt_data(&pdev->dev, pdata); |
| 4398 | return rc; |
| 4399 | } /* hdmi_tx_get_dt_data */ |
| 4400 | |
| 4401 | static int hdmi_tx_init_event_handler(struct hdmi_tx_ctrl *hdmi_ctrl) |
| 4402 | { |
| 4403 | hdmi_tx_evt_handler *handler; |
| 4404 | |
| 4405 | if (!hdmi_ctrl) |
| 4406 | return -EINVAL; |
| 4407 | |
| 4408 | handler = hdmi_ctrl->evt_handler; |
| 4409 | |
| 4410 | handler[MDSS_EVENT_FB_REGISTERED] = hdmi_tx_evt_handle_register; |
| 4411 | handler[MDSS_EVENT_CHECK_PARAMS] = hdmi_tx_evt_handle_check_param; |
| 4412 | handler[MDSS_EVENT_RESUME] = hdmi_tx_evt_handle_resume; |
| 4413 | handler[MDSS_EVENT_RESET] = hdmi_tx_evt_handle_reset; |
| 4414 | handler[MDSS_EVENT_UNBLANK] = hdmi_tx_evt_handle_unblank; |
| 4415 | handler[MDSS_EVENT_PANEL_ON] = hdmi_tx_evt_handle_panel_on; |
| 4416 | handler[MDSS_EVENT_SUSPEND] = hdmi_tx_evt_handle_suspend; |
| 4417 | handler[MDSS_EVENT_BLANK] = hdmi_tx_evt_handle_blank; |
| 4418 | handler[MDSS_EVENT_PANEL_OFF] = hdmi_tx_evt_handle_panel_off; |
| 4419 | handler[MDSS_EVENT_CLOSE] = hdmi_tx_evt_handle_close; |
| 4420 | |
| 4421 | return 0; |
| 4422 | } |
| 4423 | |
| 4424 | static int hdmi_tx_probe(struct platform_device *pdev) |
| 4425 | { |
| 4426 | int rc = 0, i; |
| 4427 | struct device_node *of_node = pdev->dev.of_node; |
| 4428 | struct hdmi_tx_ctrl *hdmi_ctrl = NULL; |
| 4429 | struct mdss_panel_cfg *pan_cfg = NULL; |
| 4430 | |
| 4431 | if (!of_node) { |
| 4432 | DEV_ERR("%s: FAILED: of_node not found\n", __func__); |
| 4433 | rc = -ENODEV; |
| 4434 | return rc; |
| 4435 | } |
| 4436 | |
| 4437 | hdmi_ctrl = devm_kzalloc(&pdev->dev, sizeof(*hdmi_ctrl), GFP_KERNEL); |
| 4438 | if (!hdmi_ctrl) { |
| 4439 | DEV_ERR("%s: FAILED: cannot alloc hdmi tx ctrl\n", __func__); |
| 4440 | rc = -ENOMEM; |
| 4441 | goto failed_no_mem; |
| 4442 | } |
| 4443 | |
| 4444 | hdmi_ctrl->mdss_util = mdss_get_util_intf(); |
| 4445 | if (hdmi_ctrl->mdss_util == NULL) { |
| 4446 | pr_err("Failed to get mdss utility functions\n"); |
| 4447 | rc = -ENODEV; |
| 4448 | goto failed_dt_data; |
| 4449 | } |
| 4450 | |
| 4451 | platform_set_drvdata(pdev, hdmi_ctrl); |
| 4452 | hdmi_ctrl->pdev = pdev; |
| 4453 | hdmi_ctrl->enc_lvl = HDCP_STATE_AUTH_ENC_NONE; |
| 4454 | |
| 4455 | pan_cfg = mdss_panel_intf_type(MDSS_PANEL_INTF_HDMI); |
| 4456 | if (IS_ERR(pan_cfg)) { |
| 4457 | return PTR_ERR(pan_cfg); |
| 4458 | } else if (pan_cfg) { |
| 4459 | int vic; |
| 4460 | |
| 4461 | if (kstrtoint(pan_cfg->arg_cfg, 10, &vic) || |
| 4462 | vic <= HDMI_VFRMT_UNKNOWN || vic >= HDMI_VFRMT_MAX) |
| 4463 | vic = DEFAULT_HDMI_PRIMARY_RESOLUTION; |
| 4464 | |
| 4465 | hdmi_ctrl->pdata.primary = true; |
| 4466 | hdmi_ctrl->vic = vic; |
| 4467 | hdmi_ctrl->panel_data.panel_info.is_prim_panel = true; |
| 4468 | hdmi_ctrl->panel_data.panel_info.cont_splash_enabled = |
| 4469 | hdmi_ctrl->mdss_util->panel_intf_status(DISPLAY_1, |
| 4470 | MDSS_PANEL_INTF_HDMI) ? true : false; |
| 4471 | } |
| 4472 | |
| 4473 | hdmi_tx_hw.irq_info = mdss_intr_line(); |
| 4474 | if (hdmi_tx_hw.irq_info == NULL) { |
| 4475 | pr_err("Failed to get mdss irq information\n"); |
| 4476 | return -ENODEV; |
| 4477 | } |
| 4478 | |
| 4479 | rc = hdmi_tx_get_dt_data(pdev, &hdmi_ctrl->pdata); |
| 4480 | if (rc) { |
| 4481 | DEV_ERR("%s: FAILED: parsing device tree data. rc=%d\n", |
| 4482 | __func__, rc); |
| 4483 | goto failed_dt_data; |
| 4484 | } |
| 4485 | |
| 4486 | rc = hdmi_tx_init_resource(hdmi_ctrl); |
| 4487 | if (rc) { |
| 4488 | DEV_ERR("%s: FAILED: resource init. rc=%d\n", |
| 4489 | __func__, rc); |
| 4490 | goto failed_res_init; |
| 4491 | } |
| 4492 | |
| 4493 | rc = hdmi_tx_get_version(hdmi_ctrl); |
| 4494 | if (rc) { |
| 4495 | DEV_ERR("%s: FAILED: hdmi_tx_get_version. rc=%d\n", |
| 4496 | __func__, rc); |
| 4497 | goto failed_reg_panel; |
| 4498 | } |
| 4499 | |
| 4500 | rc = hdmi_tx_dev_init(hdmi_ctrl); |
| 4501 | if (rc) { |
| 4502 | DEV_ERR("%s: FAILED: hdmi_tx_dev_init. rc=%d\n", __func__, rc); |
| 4503 | goto failed_dev_init; |
| 4504 | } |
| 4505 | |
| 4506 | rc = hdmi_tx_init_event_handler(hdmi_ctrl); |
| 4507 | if (rc) { |
| 4508 | DEV_ERR("%s: FAILED: hdmi_tx_init_event_handler. rc=%d\n", |
| 4509 | __func__, rc); |
| 4510 | goto failed_dev_init; |
| 4511 | } |
| 4512 | |
| 4513 | rc = hdmi_tx_register_panel(hdmi_ctrl); |
| 4514 | if (rc) { |
| 4515 | DEV_ERR("%s: FAILED: register_panel. rc=%d\n", __func__, rc); |
| 4516 | goto failed_reg_panel; |
| 4517 | } |
| 4518 | |
| 4519 | rc = of_platform_populate(of_node, NULL, NULL, &pdev->dev); |
| 4520 | if (rc) { |
| 4521 | DEV_ERR("%s: Failed to add child devices. rc=%d\n", |
| 4522 | __func__, rc); |
| 4523 | goto failed_reg_panel; |
| 4524 | } else { |
| 4525 | DEV_DBG("%s: Add child devices.\n", __func__); |
| 4526 | } |
| 4527 | |
| 4528 | if (mdss_debug_register_io("hdmi", |
| 4529 | &hdmi_ctrl->pdata.io[HDMI_TX_CORE_IO], NULL)) |
| 4530 | DEV_WARN("%s: hdmi_tx debugfs register failed\n", __func__); |
| 4531 | |
| 4532 | if (hdmi_ctrl->panel_data.panel_info.cont_splash_enabled) { |
| 4533 | for (i = 0; i < HDMI_TX_MAX_PM; i++) { |
| 4534 | msm_dss_enable_vreg( |
| 4535 | hdmi_ctrl->pdata.power_data[i].vreg_config, |
| 4536 | hdmi_ctrl->pdata.power_data[i].num_vreg, 1); |
| 4537 | |
| 4538 | hdmi_tx_pinctrl_set_state(hdmi_ctrl, i, 1); |
| 4539 | |
| 4540 | msm_dss_enable_gpio( |
| 4541 | hdmi_ctrl->pdata.power_data[i].gpio_config, |
| 4542 | hdmi_ctrl->pdata.power_data[i].num_gpio, 1); |
| 4543 | |
| 4544 | msm_dss_enable_clk( |
| 4545 | hdmi_ctrl->pdata.power_data[i].clk_config, |
| 4546 | hdmi_ctrl->pdata.power_data[i].num_clk, 1); |
| 4547 | |
| 4548 | hdmi_ctrl->power_data_enable[i] = true; |
| 4549 | } |
| 4550 | } |
| 4551 | |
| 4552 | return rc; |
| 4553 | |
| 4554 | failed_reg_panel: |
| 4555 | hdmi_tx_dev_deinit(hdmi_ctrl); |
| 4556 | failed_dev_init: |
| 4557 | hdmi_tx_deinit_resource(hdmi_ctrl); |
| 4558 | failed_res_init: |
| 4559 | hdmi_tx_put_dt_data(&pdev->dev, &hdmi_ctrl->pdata); |
| 4560 | failed_dt_data: |
| 4561 | devm_kfree(&pdev->dev, hdmi_ctrl); |
| 4562 | failed_no_mem: |
| 4563 | return rc; |
| 4564 | } /* hdmi_tx_probe */ |
| 4565 | |
| 4566 | static int hdmi_tx_remove(struct platform_device *pdev) |
| 4567 | { |
| 4568 | struct hdmi_tx_ctrl *hdmi_ctrl = platform_get_drvdata(pdev); |
| 4569 | |
| 4570 | if (!hdmi_ctrl) { |
| 4571 | DEV_ERR("%s: no driver data\n", __func__); |
| 4572 | return -ENODEV; |
| 4573 | } |
| 4574 | |
| 4575 | hdmi_tx_sysfs_remove(hdmi_ctrl); |
| 4576 | hdmi_tx_dev_deinit(hdmi_ctrl); |
| 4577 | hdmi_tx_deinit_resource(hdmi_ctrl); |
| 4578 | hdmi_tx_put_dt_data(&pdev->dev, &hdmi_ctrl->pdata); |
| 4579 | devm_kfree(&hdmi_ctrl->pdev->dev, hdmi_ctrl); |
| 4580 | |
| 4581 | return 0; |
| 4582 | } /* hdmi_tx_remove */ |
| 4583 | |
| 4584 | static const struct of_device_id hdmi_tx_dt_match[] = { |
| 4585 | {.compatible = COMPATIBLE_NAME,}, |
| 4586 | { /* Sentinel */ }, |
| 4587 | }; |
| 4588 | MODULE_DEVICE_TABLE(of, hdmi_tx_dt_match); |
| 4589 | |
| 4590 | static struct platform_driver this_driver = { |
| 4591 | .probe = hdmi_tx_probe, |
| 4592 | .remove = hdmi_tx_remove, |
| 4593 | .driver = { |
| 4594 | .name = DRV_NAME, |
| 4595 | .of_match_table = hdmi_tx_dt_match, |
| 4596 | }, |
| 4597 | }; |
| 4598 | |
| 4599 | static int __init hdmi_tx_drv_init(void) |
| 4600 | { |
| 4601 | int rc; |
| 4602 | |
| 4603 | rc = platform_driver_register(&this_driver); |
| 4604 | if (rc) |
| 4605 | DEV_ERR("%s: FAILED: rc=%d\n", __func__, rc); |
| 4606 | |
| 4607 | return rc; |
| 4608 | } /* hdmi_tx_drv_init */ |
| 4609 | |
| 4610 | static void __exit hdmi_tx_drv_exit(void) |
| 4611 | { |
| 4612 | platform_driver_unregister(&this_driver); |
| 4613 | } /* hdmi_tx_drv_exit */ |
| 4614 | |
| 4615 | static int set_hdcp_feature_on(const char *val, const struct kernel_param *kp) |
| 4616 | { |
| 4617 | int rc = 0; |
| 4618 | |
| 4619 | rc = param_set_bool(val, kp); |
| 4620 | if (!rc) |
| 4621 | pr_debug("%s: HDCP feature = %d\n", __func__, hdcp_feature_on); |
| 4622 | |
| 4623 | return rc; |
| 4624 | } |
| 4625 | |
| 4626 | static struct kernel_param_ops hdcp_feature_on_param_ops = { |
| 4627 | .set = set_hdcp_feature_on, |
| 4628 | .get = param_get_bool, |
| 4629 | }; |
| 4630 | |
| 4631 | module_param_cb(hdcp, &hdcp_feature_on_param_ops, &hdcp_feature_on, |
| 4632 | 0644); |
| 4633 | MODULE_PARM_DESC(hdcp, "Enable or Disable HDCP"); |
| 4634 | |
| 4635 | module_init(hdmi_tx_drv_init); |
| 4636 | module_exit(hdmi_tx_drv_exit); |
| 4637 | |
| 4638 | MODULE_LICENSE("GPL v2"); |
| 4639 | MODULE_DESCRIPTION("HDMI MSM TX driver"); |