![Dave Airlie](/assets/img/avatar_default.png)
From: Russell King <rmk@armlinux.org.uk> As per the patches posted, discussed and tested by Peter Rosin, this converts TDA998x to a bridge driver, while still allowing Armada and TI LCDC to continue using it as they always have done. It also gets rid of the private .fill_modes function, and tweaks the TMDS divider calculation to be more correct to the available information. [airlied: fixed two conflicts] Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180802093421.GA29670@rmk-PC.armlinux.org.uk
1970 lines
58 KiB
C
1970 lines
58 KiB
C
/*
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* Copyright (C) 2012 Texas Instruments
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/component.h>
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#include <linux/gpio/consumer.h>
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#include <linux/hdmi.h>
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#include <linux/module.h>
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#include <linux/platform_data/tda9950.h>
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#include <linux/irq.h>
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#include <sound/asoundef.h>
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#include <sound/hdmi-codec.h>
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#include <drm/drmP.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_of.h>
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#include <drm/i2c/tda998x.h>
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#include <media/cec-notifier.h>
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#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
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struct tda998x_audio_port {
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u8 format; /* AFMT_xxx */
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u8 config; /* AP value */
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};
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struct tda998x_priv {
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struct i2c_client *cec;
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struct i2c_client *hdmi;
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struct mutex mutex;
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u16 rev;
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u8 cec_addr;
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u8 current_page;
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bool is_on;
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bool supports_infoframes;
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bool sink_has_audio;
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u8 vip_cntrl_0;
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u8 vip_cntrl_1;
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u8 vip_cntrl_2;
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unsigned long tmds_clock;
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struct tda998x_audio_params audio_params;
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struct platform_device *audio_pdev;
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struct mutex audio_mutex;
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struct mutex edid_mutex;
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wait_queue_head_t wq_edid;
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volatile int wq_edid_wait;
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struct work_struct detect_work;
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struct timer_list edid_delay_timer;
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wait_queue_head_t edid_delay_waitq;
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bool edid_delay_active;
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struct drm_encoder encoder;
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struct drm_bridge bridge;
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struct drm_connector connector;
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struct tda998x_audio_port audio_port[2];
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struct tda9950_glue cec_glue;
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struct gpio_desc *calib;
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struct cec_notifier *cec_notify;
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};
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#define conn_to_tda998x_priv(x) \
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container_of(x, struct tda998x_priv, connector)
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#define enc_to_tda998x_priv(x) \
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container_of(x, struct tda998x_priv, encoder)
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#define bridge_to_tda998x_priv(x) \
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container_of(x, struct tda998x_priv, bridge)
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/* The TDA9988 series of devices use a paged register scheme.. to simplify
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* things we encode the page # in upper bits of the register #. To read/
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* write a given register, we need to make sure CURPAGE register is set
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* appropriately. Which implies reads/writes are not atomic. Fun!
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*/
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#define REG(page, addr) (((page) << 8) | (addr))
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#define REG2ADDR(reg) ((reg) & 0xff)
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#define REG2PAGE(reg) (((reg) >> 8) & 0xff)
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#define REG_CURPAGE 0xff /* write */
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/* Page 00h: General Control */
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#define REG_VERSION_LSB REG(0x00, 0x00) /* read */
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#define REG_MAIN_CNTRL0 REG(0x00, 0x01) /* read/write */
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# define MAIN_CNTRL0_SR (1 << 0)
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# define MAIN_CNTRL0_DECS (1 << 1)
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# define MAIN_CNTRL0_DEHS (1 << 2)
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# define MAIN_CNTRL0_CECS (1 << 3)
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# define MAIN_CNTRL0_CEHS (1 << 4)
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# define MAIN_CNTRL0_SCALER (1 << 7)
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#define REG_VERSION_MSB REG(0x00, 0x02) /* read */
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#define REG_SOFTRESET REG(0x00, 0x0a) /* write */
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# define SOFTRESET_AUDIO (1 << 0)
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# define SOFTRESET_I2C_MASTER (1 << 1)
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#define REG_DDC_DISABLE REG(0x00, 0x0b) /* read/write */
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#define REG_CCLK_ON REG(0x00, 0x0c) /* read/write */
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#define REG_I2C_MASTER REG(0x00, 0x0d) /* read/write */
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# define I2C_MASTER_DIS_MM (1 << 0)
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# define I2C_MASTER_DIS_FILT (1 << 1)
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# define I2C_MASTER_APP_STRT_LAT (1 << 2)
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#define REG_FEAT_POWERDOWN REG(0x00, 0x0e) /* read/write */
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# define FEAT_POWERDOWN_PREFILT BIT(0)
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# define FEAT_POWERDOWN_CSC BIT(1)
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# define FEAT_POWERDOWN_SPDIF (1 << 3)
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#define REG_INT_FLAGS_0 REG(0x00, 0x0f) /* read/write */
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#define REG_INT_FLAGS_1 REG(0x00, 0x10) /* read/write */
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#define REG_INT_FLAGS_2 REG(0x00, 0x11) /* read/write */
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# define INT_FLAGS_2_EDID_BLK_RD (1 << 1)
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#define REG_ENA_ACLK REG(0x00, 0x16) /* read/write */
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#define REG_ENA_VP_0 REG(0x00, 0x18) /* read/write */
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#define REG_ENA_VP_1 REG(0x00, 0x19) /* read/write */
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#define REG_ENA_VP_2 REG(0x00, 0x1a) /* read/write */
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#define REG_ENA_AP REG(0x00, 0x1e) /* read/write */
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#define REG_VIP_CNTRL_0 REG(0x00, 0x20) /* write */
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# define VIP_CNTRL_0_MIRR_A (1 << 7)
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# define VIP_CNTRL_0_SWAP_A(x) (((x) & 7) << 4)
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# define VIP_CNTRL_0_MIRR_B (1 << 3)
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# define VIP_CNTRL_0_SWAP_B(x) (((x) & 7) << 0)
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#define REG_VIP_CNTRL_1 REG(0x00, 0x21) /* write */
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# define VIP_CNTRL_1_MIRR_C (1 << 7)
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# define VIP_CNTRL_1_SWAP_C(x) (((x) & 7) << 4)
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# define VIP_CNTRL_1_MIRR_D (1 << 3)
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# define VIP_CNTRL_1_SWAP_D(x) (((x) & 7) << 0)
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#define REG_VIP_CNTRL_2 REG(0x00, 0x22) /* write */
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# define VIP_CNTRL_2_MIRR_E (1 << 7)
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# define VIP_CNTRL_2_SWAP_E(x) (((x) & 7) << 4)
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# define VIP_CNTRL_2_MIRR_F (1 << 3)
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# define VIP_CNTRL_2_SWAP_F(x) (((x) & 7) << 0)
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#define REG_VIP_CNTRL_3 REG(0x00, 0x23) /* write */
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# define VIP_CNTRL_3_X_TGL (1 << 0)
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# define VIP_CNTRL_3_H_TGL (1 << 1)
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# define VIP_CNTRL_3_V_TGL (1 << 2)
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# define VIP_CNTRL_3_EMB (1 << 3)
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# define VIP_CNTRL_3_SYNC_DE (1 << 4)
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# define VIP_CNTRL_3_SYNC_HS (1 << 5)
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# define VIP_CNTRL_3_DE_INT (1 << 6)
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# define VIP_CNTRL_3_EDGE (1 << 7)
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#define REG_VIP_CNTRL_4 REG(0x00, 0x24) /* write */
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# define VIP_CNTRL_4_BLC(x) (((x) & 3) << 0)
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# define VIP_CNTRL_4_BLANKIT(x) (((x) & 3) << 2)
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# define VIP_CNTRL_4_CCIR656 (1 << 4)
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# define VIP_CNTRL_4_656_ALT (1 << 5)
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# define VIP_CNTRL_4_TST_656 (1 << 6)
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# define VIP_CNTRL_4_TST_PAT (1 << 7)
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#define REG_VIP_CNTRL_5 REG(0x00, 0x25) /* write */
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# define VIP_CNTRL_5_CKCASE (1 << 0)
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# define VIP_CNTRL_5_SP_CNT(x) (((x) & 3) << 1)
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#define REG_MUX_AP REG(0x00, 0x26) /* read/write */
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# define MUX_AP_SELECT_I2S 0x64
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# define MUX_AP_SELECT_SPDIF 0x40
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#define REG_MUX_VP_VIP_OUT REG(0x00, 0x27) /* read/write */
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#define REG_MAT_CONTRL REG(0x00, 0x80) /* write */
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# define MAT_CONTRL_MAT_SC(x) (((x) & 3) << 0)
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# define MAT_CONTRL_MAT_BP (1 << 2)
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#define REG_VIDFORMAT REG(0x00, 0xa0) /* write */
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#define REG_REFPIX_MSB REG(0x00, 0xa1) /* write */
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#define REG_REFPIX_LSB REG(0x00, 0xa2) /* write */
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#define REG_REFLINE_MSB REG(0x00, 0xa3) /* write */
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#define REG_REFLINE_LSB REG(0x00, 0xa4) /* write */
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#define REG_NPIX_MSB REG(0x00, 0xa5) /* write */
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#define REG_NPIX_LSB REG(0x00, 0xa6) /* write */
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#define REG_NLINE_MSB REG(0x00, 0xa7) /* write */
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#define REG_NLINE_LSB REG(0x00, 0xa8) /* write */
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#define REG_VS_LINE_STRT_1_MSB REG(0x00, 0xa9) /* write */
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#define REG_VS_LINE_STRT_1_LSB REG(0x00, 0xaa) /* write */
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#define REG_VS_PIX_STRT_1_MSB REG(0x00, 0xab) /* write */
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#define REG_VS_PIX_STRT_1_LSB REG(0x00, 0xac) /* write */
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#define REG_VS_LINE_END_1_MSB REG(0x00, 0xad) /* write */
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#define REG_VS_LINE_END_1_LSB REG(0x00, 0xae) /* write */
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#define REG_VS_PIX_END_1_MSB REG(0x00, 0xaf) /* write */
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#define REG_VS_PIX_END_1_LSB REG(0x00, 0xb0) /* write */
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#define REG_VS_LINE_STRT_2_MSB REG(0x00, 0xb1) /* write */
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#define REG_VS_LINE_STRT_2_LSB REG(0x00, 0xb2) /* write */
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#define REG_VS_PIX_STRT_2_MSB REG(0x00, 0xb3) /* write */
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#define REG_VS_PIX_STRT_2_LSB REG(0x00, 0xb4) /* write */
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#define REG_VS_LINE_END_2_MSB REG(0x00, 0xb5) /* write */
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#define REG_VS_LINE_END_2_LSB REG(0x00, 0xb6) /* write */
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#define REG_VS_PIX_END_2_MSB REG(0x00, 0xb7) /* write */
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#define REG_VS_PIX_END_2_LSB REG(0x00, 0xb8) /* write */
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#define REG_HS_PIX_START_MSB REG(0x00, 0xb9) /* write */
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#define REG_HS_PIX_START_LSB REG(0x00, 0xba) /* write */
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#define REG_HS_PIX_STOP_MSB REG(0x00, 0xbb) /* write */
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#define REG_HS_PIX_STOP_LSB REG(0x00, 0xbc) /* write */
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#define REG_VWIN_START_1_MSB REG(0x00, 0xbd) /* write */
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#define REG_VWIN_START_1_LSB REG(0x00, 0xbe) /* write */
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#define REG_VWIN_END_1_MSB REG(0x00, 0xbf) /* write */
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#define REG_VWIN_END_1_LSB REG(0x00, 0xc0) /* write */
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#define REG_VWIN_START_2_MSB REG(0x00, 0xc1) /* write */
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#define REG_VWIN_START_2_LSB REG(0x00, 0xc2) /* write */
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#define REG_VWIN_END_2_MSB REG(0x00, 0xc3) /* write */
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#define REG_VWIN_END_2_LSB REG(0x00, 0xc4) /* write */
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#define REG_DE_START_MSB REG(0x00, 0xc5) /* write */
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#define REG_DE_START_LSB REG(0x00, 0xc6) /* write */
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#define REG_DE_STOP_MSB REG(0x00, 0xc7) /* write */
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#define REG_DE_STOP_LSB REG(0x00, 0xc8) /* write */
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#define REG_TBG_CNTRL_0 REG(0x00, 0xca) /* write */
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# define TBG_CNTRL_0_TOP_TGL (1 << 0)
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# define TBG_CNTRL_0_TOP_SEL (1 << 1)
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# define TBG_CNTRL_0_DE_EXT (1 << 2)
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# define TBG_CNTRL_0_TOP_EXT (1 << 3)
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# define TBG_CNTRL_0_FRAME_DIS (1 << 5)
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# define TBG_CNTRL_0_SYNC_MTHD (1 << 6)
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# define TBG_CNTRL_0_SYNC_ONCE (1 << 7)
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#define REG_TBG_CNTRL_1 REG(0x00, 0xcb) /* write */
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# define TBG_CNTRL_1_H_TGL (1 << 0)
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# define TBG_CNTRL_1_V_TGL (1 << 1)
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# define TBG_CNTRL_1_TGL_EN (1 << 2)
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# define TBG_CNTRL_1_X_EXT (1 << 3)
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# define TBG_CNTRL_1_H_EXT (1 << 4)
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# define TBG_CNTRL_1_V_EXT (1 << 5)
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# define TBG_CNTRL_1_DWIN_DIS (1 << 6)
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#define REG_ENABLE_SPACE REG(0x00, 0xd6) /* write */
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#define REG_HVF_CNTRL_0 REG(0x00, 0xe4) /* write */
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# define HVF_CNTRL_0_SM (1 << 7)
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# define HVF_CNTRL_0_RWB (1 << 6)
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# define HVF_CNTRL_0_PREFIL(x) (((x) & 3) << 2)
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# define HVF_CNTRL_0_INTPOL(x) (((x) & 3) << 0)
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#define REG_HVF_CNTRL_1 REG(0x00, 0xe5) /* write */
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# define HVF_CNTRL_1_FOR (1 << 0)
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# define HVF_CNTRL_1_YUVBLK (1 << 1)
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# define HVF_CNTRL_1_VQR(x) (((x) & 3) << 2)
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# define HVF_CNTRL_1_PAD(x) (((x) & 3) << 4)
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# define HVF_CNTRL_1_SEMI_PLANAR (1 << 6)
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#define REG_RPT_CNTRL REG(0x00, 0xf0) /* write */
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#define REG_I2S_FORMAT REG(0x00, 0xfc) /* read/write */
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# define I2S_FORMAT(x) (((x) & 3) << 0)
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#define REG_AIP_CLKSEL REG(0x00, 0xfd) /* write */
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# define AIP_CLKSEL_AIP_SPDIF (0 << 3)
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# define AIP_CLKSEL_AIP_I2S (1 << 3)
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# define AIP_CLKSEL_FS_ACLK (0 << 0)
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# define AIP_CLKSEL_FS_MCLK (1 << 0)
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# define AIP_CLKSEL_FS_FS64SPDIF (2 << 0)
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/* Page 02h: PLL settings */
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#define REG_PLL_SERIAL_1 REG(0x02, 0x00) /* read/write */
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# define PLL_SERIAL_1_SRL_FDN (1 << 0)
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# define PLL_SERIAL_1_SRL_IZ(x) (((x) & 3) << 1)
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# define PLL_SERIAL_1_SRL_MAN_IZ (1 << 6)
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#define REG_PLL_SERIAL_2 REG(0x02, 0x01) /* read/write */
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# define PLL_SERIAL_2_SRL_NOSC(x) ((x) << 0)
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# define PLL_SERIAL_2_SRL_PR(x) (((x) & 0xf) << 4)
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#define REG_PLL_SERIAL_3 REG(0x02, 0x02) /* read/write */
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# define PLL_SERIAL_3_SRL_CCIR (1 << 0)
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# define PLL_SERIAL_3_SRL_DE (1 << 2)
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# define PLL_SERIAL_3_SRL_PXIN_SEL (1 << 4)
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#define REG_SERIALIZER REG(0x02, 0x03) /* read/write */
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#define REG_BUFFER_OUT REG(0x02, 0x04) /* read/write */
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#define REG_PLL_SCG1 REG(0x02, 0x05) /* read/write */
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#define REG_PLL_SCG2 REG(0x02, 0x06) /* read/write */
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#define REG_PLL_SCGN1 REG(0x02, 0x07) /* read/write */
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#define REG_PLL_SCGN2 REG(0x02, 0x08) /* read/write */
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#define REG_PLL_SCGR1 REG(0x02, 0x09) /* read/write */
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#define REG_PLL_SCGR2 REG(0x02, 0x0a) /* read/write */
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#define REG_AUDIO_DIV REG(0x02, 0x0e) /* read/write */
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# define AUDIO_DIV_SERCLK_1 0
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# define AUDIO_DIV_SERCLK_2 1
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# define AUDIO_DIV_SERCLK_4 2
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# define AUDIO_DIV_SERCLK_8 3
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# define AUDIO_DIV_SERCLK_16 4
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# define AUDIO_DIV_SERCLK_32 5
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#define REG_SEL_CLK REG(0x02, 0x11) /* read/write */
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# define SEL_CLK_SEL_CLK1 (1 << 0)
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# define SEL_CLK_SEL_VRF_CLK(x) (((x) & 3) << 1)
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# define SEL_CLK_ENA_SC_CLK (1 << 3)
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#define REG_ANA_GENERAL REG(0x02, 0x12) /* read/write */
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/* Page 09h: EDID Control */
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#define REG_EDID_DATA_0 REG(0x09, 0x00) /* read */
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/* next 127 successive registers are the EDID block */
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#define REG_EDID_CTRL REG(0x09, 0xfa) /* read/write */
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#define REG_DDC_ADDR REG(0x09, 0xfb) /* read/write */
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#define REG_DDC_OFFS REG(0x09, 0xfc) /* read/write */
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#define REG_DDC_SEGM_ADDR REG(0x09, 0xfd) /* read/write */
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#define REG_DDC_SEGM REG(0x09, 0xfe) /* read/write */
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/* Page 10h: information frames and packets */
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#define REG_IF1_HB0 REG(0x10, 0x20) /* read/write */
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#define REG_IF2_HB0 REG(0x10, 0x40) /* read/write */
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#define REG_IF3_HB0 REG(0x10, 0x60) /* read/write */
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#define REG_IF4_HB0 REG(0x10, 0x80) /* read/write */
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#define REG_IF5_HB0 REG(0x10, 0xa0) /* read/write */
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/* Page 11h: audio settings and content info packets */
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#define REG_AIP_CNTRL_0 REG(0x11, 0x00) /* read/write */
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# define AIP_CNTRL_0_RST_FIFO (1 << 0)
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# define AIP_CNTRL_0_SWAP (1 << 1)
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# define AIP_CNTRL_0_LAYOUT (1 << 2)
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# define AIP_CNTRL_0_ACR_MAN (1 << 5)
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# define AIP_CNTRL_0_RST_CTS (1 << 6)
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#define REG_CA_I2S REG(0x11, 0x01) /* read/write */
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# define CA_I2S_CA_I2S(x) (((x) & 31) << 0)
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# define CA_I2S_HBR_CHSTAT (1 << 6)
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#define REG_LATENCY_RD REG(0x11, 0x04) /* read/write */
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#define REG_ACR_CTS_0 REG(0x11, 0x05) /* read/write */
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#define REG_ACR_CTS_1 REG(0x11, 0x06) /* read/write */
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#define REG_ACR_CTS_2 REG(0x11, 0x07) /* read/write */
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#define REG_ACR_N_0 REG(0x11, 0x08) /* read/write */
|
|
#define REG_ACR_N_1 REG(0x11, 0x09) /* read/write */
|
|
#define REG_ACR_N_2 REG(0x11, 0x0a) /* read/write */
|
|
#define REG_CTS_N REG(0x11, 0x0c) /* read/write */
|
|
# define CTS_N_K(x) (((x) & 7) << 0)
|
|
# define CTS_N_M(x) (((x) & 3) << 4)
|
|
#define REG_ENC_CNTRL REG(0x11, 0x0d) /* read/write */
|
|
# define ENC_CNTRL_RST_ENC (1 << 0)
|
|
# define ENC_CNTRL_RST_SEL (1 << 1)
|
|
# define ENC_CNTRL_CTL_CODE(x) (((x) & 3) << 2)
|
|
#define REG_DIP_FLAGS REG(0x11, 0x0e) /* read/write */
|
|
# define DIP_FLAGS_ACR (1 << 0)
|
|
# define DIP_FLAGS_GC (1 << 1)
|
|
#define REG_DIP_IF_FLAGS REG(0x11, 0x0f) /* read/write */
|
|
# define DIP_IF_FLAGS_IF1 (1 << 1)
|
|
# define DIP_IF_FLAGS_IF2 (1 << 2)
|
|
# define DIP_IF_FLAGS_IF3 (1 << 3)
|
|
# define DIP_IF_FLAGS_IF4 (1 << 4)
|
|
# define DIP_IF_FLAGS_IF5 (1 << 5)
|
|
#define REG_CH_STAT_B(x) REG(0x11, 0x14 + (x)) /* read/write */
|
|
|
|
|
|
/* Page 12h: HDCP and OTP */
|
|
#define REG_TX3 REG(0x12, 0x9a) /* read/write */
|
|
#define REG_TX4 REG(0x12, 0x9b) /* read/write */
|
|
# define TX4_PD_RAM (1 << 1)
|
|
#define REG_TX33 REG(0x12, 0xb8) /* read/write */
|
|
# define TX33_HDMI (1 << 1)
|
|
|
|
|
|
/* Page 13h: Gamut related metadata packets */
|
|
|
|
|
|
|
|
/* CEC registers: (not paged)
|
|
*/
|
|
#define REG_CEC_INTSTATUS 0xee /* read */
|
|
# define CEC_INTSTATUS_CEC (1 << 0)
|
|
# define CEC_INTSTATUS_HDMI (1 << 1)
|
|
#define REG_CEC_CAL_XOSC_CTRL1 0xf2
|
|
# define CEC_CAL_XOSC_CTRL1_ENA_CAL BIT(0)
|
|
#define REG_CEC_DES_FREQ2 0xf5
|
|
# define CEC_DES_FREQ2_DIS_AUTOCAL BIT(7)
|
|
#define REG_CEC_CLK 0xf6
|
|
# define CEC_CLK_FRO 0x11
|
|
#define REG_CEC_FRO_IM_CLK_CTRL 0xfb /* read/write */
|
|
# define CEC_FRO_IM_CLK_CTRL_GHOST_DIS (1 << 7)
|
|
# define CEC_FRO_IM_CLK_CTRL_ENA_OTP (1 << 6)
|
|
# define CEC_FRO_IM_CLK_CTRL_IMCLK_SEL (1 << 1)
|
|
# define CEC_FRO_IM_CLK_CTRL_FRO_DIV (1 << 0)
|
|
#define REG_CEC_RXSHPDINTENA 0xfc /* read/write */
|
|
#define REG_CEC_RXSHPDINT 0xfd /* read */
|
|
# define CEC_RXSHPDINT_RXSENS BIT(0)
|
|
# define CEC_RXSHPDINT_HPD BIT(1)
|
|
#define REG_CEC_RXSHPDLEV 0xfe /* read */
|
|
# define CEC_RXSHPDLEV_RXSENS (1 << 0)
|
|
# define CEC_RXSHPDLEV_HPD (1 << 1)
|
|
|
|
#define REG_CEC_ENAMODS 0xff /* read/write */
|
|
# define CEC_ENAMODS_EN_CEC_CLK (1 << 7)
|
|
# define CEC_ENAMODS_DIS_FRO (1 << 6)
|
|
# define CEC_ENAMODS_DIS_CCLK (1 << 5)
|
|
# define CEC_ENAMODS_EN_RXSENS (1 << 2)
|
|
# define CEC_ENAMODS_EN_HDMI (1 << 1)
|
|
# define CEC_ENAMODS_EN_CEC (1 << 0)
|
|
|
|
|
|
/* Device versions: */
|
|
#define TDA9989N2 0x0101
|
|
#define TDA19989 0x0201
|
|
#define TDA19989N2 0x0202
|
|
#define TDA19988 0x0301
|
|
|
|
static void
|
|
cec_write(struct tda998x_priv *priv, u16 addr, u8 val)
|
|
{
|
|
u8 buf[] = {addr, val};
|
|
struct i2c_msg msg = {
|
|
.addr = priv->cec_addr,
|
|
.len = 2,
|
|
.buf = buf,
|
|
};
|
|
int ret;
|
|
|
|
ret = i2c_transfer(priv->hdmi->adapter, &msg, 1);
|
|
if (ret < 0)
|
|
dev_err(&priv->hdmi->dev, "Error %d writing to cec:0x%x\n",
|
|
ret, addr);
|
|
}
|
|
|
|
static u8
|
|
cec_read(struct tda998x_priv *priv, u8 addr)
|
|
{
|
|
u8 val;
|
|
struct i2c_msg msg[2] = {
|
|
{
|
|
.addr = priv->cec_addr,
|
|
.len = 1,
|
|
.buf = &addr,
|
|
}, {
|
|
.addr = priv->cec_addr,
|
|
.flags = I2C_M_RD,
|
|
.len = 1,
|
|
.buf = &val,
|
|
},
|
|
};
|
|
int ret;
|
|
|
|
ret = i2c_transfer(priv->hdmi->adapter, msg, ARRAY_SIZE(msg));
|
|
if (ret < 0) {
|
|
dev_err(&priv->hdmi->dev, "Error %d reading from cec:0x%x\n",
|
|
ret, addr);
|
|
val = 0;
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
static void cec_enamods(struct tda998x_priv *priv, u8 mods, bool enable)
|
|
{
|
|
int val = cec_read(priv, REG_CEC_ENAMODS);
|
|
|
|
if (val < 0)
|
|
return;
|
|
|
|
if (enable)
|
|
val |= mods;
|
|
else
|
|
val &= ~mods;
|
|
|
|
cec_write(priv, REG_CEC_ENAMODS, val);
|
|
}
|
|
|
|
static void tda998x_cec_set_calibration(struct tda998x_priv *priv, bool enable)
|
|
{
|
|
if (enable) {
|
|
u8 val;
|
|
|
|
cec_write(priv, 0xf3, 0xc0);
|
|
cec_write(priv, 0xf4, 0xd4);
|
|
|
|
/* Enable automatic calibration mode */
|
|
val = cec_read(priv, REG_CEC_DES_FREQ2);
|
|
val &= ~CEC_DES_FREQ2_DIS_AUTOCAL;
|
|
cec_write(priv, REG_CEC_DES_FREQ2, val);
|
|
|
|
/* Enable free running oscillator */
|
|
cec_write(priv, REG_CEC_CLK, CEC_CLK_FRO);
|
|
cec_enamods(priv, CEC_ENAMODS_DIS_FRO, false);
|
|
|
|
cec_write(priv, REG_CEC_CAL_XOSC_CTRL1,
|
|
CEC_CAL_XOSC_CTRL1_ENA_CAL);
|
|
} else {
|
|
cec_write(priv, REG_CEC_CAL_XOSC_CTRL1, 0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Calibration for the internal oscillator: we need to set calibration mode,
|
|
* and then pulse the IRQ line low for a 10ms ± 1% period.
|
|
*/
|
|
static void tda998x_cec_calibration(struct tda998x_priv *priv)
|
|
{
|
|
struct gpio_desc *calib = priv->calib;
|
|
|
|
mutex_lock(&priv->edid_mutex);
|
|
if (priv->hdmi->irq > 0)
|
|
disable_irq(priv->hdmi->irq);
|
|
gpiod_direction_output(calib, 1);
|
|
tda998x_cec_set_calibration(priv, true);
|
|
|
|
local_irq_disable();
|
|
gpiod_set_value(calib, 0);
|
|
mdelay(10);
|
|
gpiod_set_value(calib, 1);
|
|
local_irq_enable();
|
|
|
|
tda998x_cec_set_calibration(priv, false);
|
|
gpiod_direction_input(calib);
|
|
if (priv->hdmi->irq > 0)
|
|
enable_irq(priv->hdmi->irq);
|
|
mutex_unlock(&priv->edid_mutex);
|
|
}
|
|
|
|
static int tda998x_cec_hook_init(void *data)
|
|
{
|
|
struct tda998x_priv *priv = data;
|
|
struct gpio_desc *calib;
|
|
|
|
calib = gpiod_get(&priv->hdmi->dev, "nxp,calib", GPIOD_ASIS);
|
|
if (IS_ERR(calib)) {
|
|
dev_warn(&priv->hdmi->dev, "failed to get calibration gpio: %ld\n",
|
|
PTR_ERR(calib));
|
|
return PTR_ERR(calib);
|
|
}
|
|
|
|
priv->calib = calib;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tda998x_cec_hook_exit(void *data)
|
|
{
|
|
struct tda998x_priv *priv = data;
|
|
|
|
gpiod_put(priv->calib);
|
|
priv->calib = NULL;
|
|
}
|
|
|
|
static int tda998x_cec_hook_open(void *data)
|
|
{
|
|
struct tda998x_priv *priv = data;
|
|
|
|
cec_enamods(priv, CEC_ENAMODS_EN_CEC_CLK | CEC_ENAMODS_EN_CEC, true);
|
|
tda998x_cec_calibration(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tda998x_cec_hook_release(void *data)
|
|
{
|
|
struct tda998x_priv *priv = data;
|
|
|
|
cec_enamods(priv, CEC_ENAMODS_EN_CEC_CLK | CEC_ENAMODS_EN_CEC, false);
|
|
}
|
|
|
|
static int
|
|
set_page(struct tda998x_priv *priv, u16 reg)
|
|
{
|
|
if (REG2PAGE(reg) != priv->current_page) {
|
|
struct i2c_client *client = priv->hdmi;
|
|
u8 buf[] = {
|
|
REG_CURPAGE, REG2PAGE(reg)
|
|
};
|
|
int ret = i2c_master_send(client, buf, sizeof(buf));
|
|
if (ret < 0) {
|
|
dev_err(&client->dev, "%s %04x err %d\n", __func__,
|
|
reg, ret);
|
|
return ret;
|
|
}
|
|
|
|
priv->current_page = REG2PAGE(reg);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
reg_read_range(struct tda998x_priv *priv, u16 reg, char *buf, int cnt)
|
|
{
|
|
struct i2c_client *client = priv->hdmi;
|
|
u8 addr = REG2ADDR(reg);
|
|
int ret;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ret = set_page(priv, reg);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = i2c_master_send(client, &addr, sizeof(addr));
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
ret = i2c_master_recv(client, buf, cnt);
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
goto out;
|
|
|
|
fail:
|
|
dev_err(&client->dev, "Error %d reading from 0x%x\n", ret, reg);
|
|
out:
|
|
mutex_unlock(&priv->mutex);
|
|
return ret;
|
|
}
|
|
|
|
#define MAX_WRITE_RANGE_BUF 32
|
|
|
|
static void
|
|
reg_write_range(struct tda998x_priv *priv, u16 reg, u8 *p, int cnt)
|
|
{
|
|
struct i2c_client *client = priv->hdmi;
|
|
/* This is the maximum size of the buffer passed in */
|
|
u8 buf[MAX_WRITE_RANGE_BUF + 1];
|
|
int ret;
|
|
|
|
if (cnt > MAX_WRITE_RANGE_BUF) {
|
|
dev_err(&client->dev, "Fixed write buffer too small (%d)\n",
|
|
MAX_WRITE_RANGE_BUF);
|
|
return;
|
|
}
|
|
|
|
buf[0] = REG2ADDR(reg);
|
|
memcpy(&buf[1], p, cnt);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ret = set_page(priv, reg);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = i2c_master_send(client, buf, cnt + 1);
|
|
if (ret < 0)
|
|
dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
|
|
out:
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static int
|
|
reg_read(struct tda998x_priv *priv, u16 reg)
|
|
{
|
|
u8 val = 0;
|
|
int ret;
|
|
|
|
ret = reg_read_range(priv, reg, &val, sizeof(val));
|
|
if (ret < 0)
|
|
return ret;
|
|
return val;
|
|
}
|
|
|
|
static void
|
|
reg_write(struct tda998x_priv *priv, u16 reg, u8 val)
|
|
{
|
|
struct i2c_client *client = priv->hdmi;
|
|
u8 buf[] = {REG2ADDR(reg), val};
|
|
int ret;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ret = set_page(priv, reg);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = i2c_master_send(client, buf, sizeof(buf));
|
|
if (ret < 0)
|
|
dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
|
|
out:
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static void
|
|
reg_write16(struct tda998x_priv *priv, u16 reg, u16 val)
|
|
{
|
|
struct i2c_client *client = priv->hdmi;
|
|
u8 buf[] = {REG2ADDR(reg), val >> 8, val};
|
|
int ret;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
ret = set_page(priv, reg);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = i2c_master_send(client, buf, sizeof(buf));
|
|
if (ret < 0)
|
|
dev_err(&client->dev, "Error %d writing to 0x%x\n", ret, reg);
|
|
out:
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static void
|
|
reg_set(struct tda998x_priv *priv, u16 reg, u8 val)
|
|
{
|
|
int old_val;
|
|
|
|
old_val = reg_read(priv, reg);
|
|
if (old_val >= 0)
|
|
reg_write(priv, reg, old_val | val);
|
|
}
|
|
|
|
static void
|
|
reg_clear(struct tda998x_priv *priv, u16 reg, u8 val)
|
|
{
|
|
int old_val;
|
|
|
|
old_val = reg_read(priv, reg);
|
|
if (old_val >= 0)
|
|
reg_write(priv, reg, old_val & ~val);
|
|
}
|
|
|
|
static void
|
|
tda998x_reset(struct tda998x_priv *priv)
|
|
{
|
|
/* reset audio and i2c master: */
|
|
reg_write(priv, REG_SOFTRESET, SOFTRESET_AUDIO | SOFTRESET_I2C_MASTER);
|
|
msleep(50);
|
|
reg_write(priv, REG_SOFTRESET, 0);
|
|
msleep(50);
|
|
|
|
/* reset transmitter: */
|
|
reg_set(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
|
|
reg_clear(priv, REG_MAIN_CNTRL0, MAIN_CNTRL0_SR);
|
|
|
|
/* PLL registers common configuration */
|
|
reg_write(priv, REG_PLL_SERIAL_1, 0x00);
|
|
reg_write(priv, REG_PLL_SERIAL_2, PLL_SERIAL_2_SRL_NOSC(1));
|
|
reg_write(priv, REG_PLL_SERIAL_3, 0x00);
|
|
reg_write(priv, REG_SERIALIZER, 0x00);
|
|
reg_write(priv, REG_BUFFER_OUT, 0x00);
|
|
reg_write(priv, REG_PLL_SCG1, 0x00);
|
|
reg_write(priv, REG_AUDIO_DIV, AUDIO_DIV_SERCLK_8);
|
|
reg_write(priv, REG_SEL_CLK, SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
|
|
reg_write(priv, REG_PLL_SCGN1, 0xfa);
|
|
reg_write(priv, REG_PLL_SCGN2, 0x00);
|
|
reg_write(priv, REG_PLL_SCGR1, 0x5b);
|
|
reg_write(priv, REG_PLL_SCGR2, 0x00);
|
|
reg_write(priv, REG_PLL_SCG2, 0x10);
|
|
|
|
/* Write the default value MUX register */
|
|
reg_write(priv, REG_MUX_VP_VIP_OUT, 0x24);
|
|
}
|
|
|
|
/*
|
|
* The TDA998x has a problem when trying to read the EDID close to a
|
|
* HPD assertion: it needs a delay of 100ms to avoid timing out while
|
|
* trying to read EDID data.
|
|
*
|
|
* However, tda998x_connector_get_modes() may be called at any moment
|
|
* after tda998x_connector_detect() indicates that we are connected, so
|
|
* we need to delay probing modes in tda998x_connector_get_modes() after
|
|
* we have seen a HPD inactive->active transition. This code implements
|
|
* that delay.
|
|
*/
|
|
static void tda998x_edid_delay_done(struct timer_list *t)
|
|
{
|
|
struct tda998x_priv *priv = from_timer(priv, t, edid_delay_timer);
|
|
|
|
priv->edid_delay_active = false;
|
|
wake_up(&priv->edid_delay_waitq);
|
|
schedule_work(&priv->detect_work);
|
|
}
|
|
|
|
static void tda998x_edid_delay_start(struct tda998x_priv *priv)
|
|
{
|
|
priv->edid_delay_active = true;
|
|
mod_timer(&priv->edid_delay_timer, jiffies + HZ/10);
|
|
}
|
|
|
|
static int tda998x_edid_delay_wait(struct tda998x_priv *priv)
|
|
{
|
|
return wait_event_killable(priv->edid_delay_waitq, !priv->edid_delay_active);
|
|
}
|
|
|
|
/*
|
|
* We need to run the KMS hotplug event helper outside of our threaded
|
|
* interrupt routine as this can call back into our get_modes method,
|
|
* which will want to make use of interrupts.
|
|
*/
|
|
static void tda998x_detect_work(struct work_struct *work)
|
|
{
|
|
struct tda998x_priv *priv =
|
|
container_of(work, struct tda998x_priv, detect_work);
|
|
struct drm_device *dev = priv->connector.dev;
|
|
|
|
if (dev)
|
|
drm_kms_helper_hotplug_event(dev);
|
|
}
|
|
|
|
/*
|
|
* only 2 interrupts may occur: screen plug/unplug and EDID read
|
|
*/
|
|
static irqreturn_t tda998x_irq_thread(int irq, void *data)
|
|
{
|
|
struct tda998x_priv *priv = data;
|
|
u8 sta, cec, lvl, flag0, flag1, flag2;
|
|
bool handled = false;
|
|
|
|
sta = cec_read(priv, REG_CEC_INTSTATUS);
|
|
if (sta & CEC_INTSTATUS_HDMI) {
|
|
cec = cec_read(priv, REG_CEC_RXSHPDINT);
|
|
lvl = cec_read(priv, REG_CEC_RXSHPDLEV);
|
|
flag0 = reg_read(priv, REG_INT_FLAGS_0);
|
|
flag1 = reg_read(priv, REG_INT_FLAGS_1);
|
|
flag2 = reg_read(priv, REG_INT_FLAGS_2);
|
|
DRM_DEBUG_DRIVER(
|
|
"tda irq sta %02x cec %02x lvl %02x f0 %02x f1 %02x f2 %02x\n",
|
|
sta, cec, lvl, flag0, flag1, flag2);
|
|
|
|
if (cec & CEC_RXSHPDINT_HPD) {
|
|
if (lvl & CEC_RXSHPDLEV_HPD) {
|
|
tda998x_edid_delay_start(priv);
|
|
} else {
|
|
schedule_work(&priv->detect_work);
|
|
cec_notifier_set_phys_addr(priv->cec_notify,
|
|
CEC_PHYS_ADDR_INVALID);
|
|
}
|
|
|
|
handled = true;
|
|
}
|
|
|
|
if ((flag2 & INT_FLAGS_2_EDID_BLK_RD) && priv->wq_edid_wait) {
|
|
priv->wq_edid_wait = 0;
|
|
wake_up(&priv->wq_edid);
|
|
handled = true;
|
|
}
|
|
}
|
|
|
|
return IRQ_RETVAL(handled);
|
|
}
|
|
|
|
static void
|
|
tda998x_write_if(struct tda998x_priv *priv, u8 bit, u16 addr,
|
|
union hdmi_infoframe *frame)
|
|
{
|
|
u8 buf[MAX_WRITE_RANGE_BUF];
|
|
ssize_t len;
|
|
|
|
len = hdmi_infoframe_pack(frame, buf, sizeof(buf));
|
|
if (len < 0) {
|
|
dev_err(&priv->hdmi->dev,
|
|
"hdmi_infoframe_pack() type=0x%02x failed: %zd\n",
|
|
frame->any.type, len);
|
|
return;
|
|
}
|
|
|
|
reg_clear(priv, REG_DIP_IF_FLAGS, bit);
|
|
reg_write_range(priv, addr, buf, len);
|
|
reg_set(priv, REG_DIP_IF_FLAGS, bit);
|
|
}
|
|
|
|
static int tda998x_write_aif(struct tda998x_priv *priv,
|
|
struct hdmi_audio_infoframe *cea)
|
|
{
|
|
union hdmi_infoframe frame;
|
|
|
|
frame.audio = *cea;
|
|
|
|
tda998x_write_if(priv, DIP_IF_FLAGS_IF4, REG_IF4_HB0, &frame);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
tda998x_write_avi(struct tda998x_priv *priv, struct drm_display_mode *mode)
|
|
{
|
|
union hdmi_infoframe frame;
|
|
|
|
drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, mode, false);
|
|
frame.avi.quantization_range = HDMI_QUANTIZATION_RANGE_FULL;
|
|
|
|
tda998x_write_if(priv, DIP_IF_FLAGS_IF2, REG_IF2_HB0, &frame);
|
|
}
|
|
|
|
/* Audio support */
|
|
|
|
static void tda998x_audio_mute(struct tda998x_priv *priv, bool on)
|
|
{
|
|
if (on) {
|
|
reg_set(priv, REG_SOFTRESET, SOFTRESET_AUDIO);
|
|
reg_clear(priv, REG_SOFTRESET, SOFTRESET_AUDIO);
|
|
reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
|
|
} else {
|
|
reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
|
|
}
|
|
}
|
|
|
|
static int
|
|
tda998x_configure_audio(struct tda998x_priv *priv,
|
|
struct tda998x_audio_params *params)
|
|
{
|
|
u8 buf[6], clksel_aip, clksel_fs, cts_n, adiv;
|
|
u32 n;
|
|
|
|
/* Enable audio ports */
|
|
reg_write(priv, REG_ENA_AP, params->config);
|
|
|
|
/* Set audio input source */
|
|
switch (params->format) {
|
|
case AFMT_SPDIF:
|
|
reg_write(priv, REG_ENA_ACLK, 0);
|
|
reg_write(priv, REG_MUX_AP, MUX_AP_SELECT_SPDIF);
|
|
clksel_aip = AIP_CLKSEL_AIP_SPDIF;
|
|
clksel_fs = AIP_CLKSEL_FS_FS64SPDIF;
|
|
cts_n = CTS_N_M(3) | CTS_N_K(3);
|
|
break;
|
|
|
|
case AFMT_I2S:
|
|
reg_write(priv, REG_ENA_ACLK, 1);
|
|
reg_write(priv, REG_MUX_AP, MUX_AP_SELECT_I2S);
|
|
clksel_aip = AIP_CLKSEL_AIP_I2S;
|
|
clksel_fs = AIP_CLKSEL_FS_ACLK;
|
|
switch (params->sample_width) {
|
|
case 16:
|
|
cts_n = CTS_N_M(3) | CTS_N_K(1);
|
|
break;
|
|
case 18:
|
|
case 20:
|
|
case 24:
|
|
cts_n = CTS_N_M(3) | CTS_N_K(2);
|
|
break;
|
|
default:
|
|
case 32:
|
|
cts_n = CTS_N_M(3) | CTS_N_K(3);
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
dev_err(&priv->hdmi->dev, "Unsupported I2S format\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
reg_write(priv, REG_AIP_CLKSEL, clksel_aip);
|
|
reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_LAYOUT |
|
|
AIP_CNTRL_0_ACR_MAN); /* auto CTS */
|
|
reg_write(priv, REG_CTS_N, cts_n);
|
|
|
|
/*
|
|
* Audio input somehow depends on HDMI line rate which is
|
|
* related to pixclk. Testing showed that modes with pixclk
|
|
* >100MHz need a larger divider while <40MHz need the default.
|
|
* There is no detailed info in the datasheet, so we just
|
|
* assume 100MHz requires larger divider.
|
|
*/
|
|
adiv = AUDIO_DIV_SERCLK_8;
|
|
if (priv->tmds_clock > 100000)
|
|
adiv++; /* AUDIO_DIV_SERCLK_16 */
|
|
|
|
/* S/PDIF asks for a larger divider */
|
|
if (params->format == AFMT_SPDIF)
|
|
adiv++; /* AUDIO_DIV_SERCLK_16 or _32 */
|
|
|
|
reg_write(priv, REG_AUDIO_DIV, adiv);
|
|
|
|
/*
|
|
* This is the approximate value of N, which happens to be
|
|
* the recommended values for non-coherent clocks.
|
|
*/
|
|
n = 128 * params->sample_rate / 1000;
|
|
|
|
/* Write the CTS and N values */
|
|
buf[0] = 0x44;
|
|
buf[1] = 0x42;
|
|
buf[2] = 0x01;
|
|
buf[3] = n;
|
|
buf[4] = n >> 8;
|
|
buf[5] = n >> 16;
|
|
reg_write_range(priv, REG_ACR_CTS_0, buf, 6);
|
|
|
|
/* Set CTS clock reference */
|
|
reg_write(priv, REG_AIP_CLKSEL, clksel_aip | clksel_fs);
|
|
|
|
/* Reset CTS generator */
|
|
reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_CTS);
|
|
reg_clear(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_CTS);
|
|
|
|
/* Write the channel status
|
|
* The REG_CH_STAT_B-registers skip IEC958 AES2 byte, because
|
|
* there is a separate register for each I2S wire.
|
|
*/
|
|
buf[0] = params->status[0];
|
|
buf[1] = params->status[1];
|
|
buf[2] = params->status[3];
|
|
buf[3] = params->status[4];
|
|
reg_write_range(priv, REG_CH_STAT_B(0), buf, 4);
|
|
|
|
tda998x_audio_mute(priv, true);
|
|
msleep(20);
|
|
tda998x_audio_mute(priv, false);
|
|
|
|
return tda998x_write_aif(priv, ¶ms->cea);
|
|
}
|
|
|
|
static int tda998x_audio_hw_params(struct device *dev, void *data,
|
|
struct hdmi_codec_daifmt *daifmt,
|
|
struct hdmi_codec_params *params)
|
|
{
|
|
struct tda998x_priv *priv = dev_get_drvdata(dev);
|
|
int i, ret;
|
|
struct tda998x_audio_params audio = {
|
|
.sample_width = params->sample_width,
|
|
.sample_rate = params->sample_rate,
|
|
.cea = params->cea,
|
|
};
|
|
|
|
memcpy(audio.status, params->iec.status,
|
|
min(sizeof(audio.status), sizeof(params->iec.status)));
|
|
|
|
switch (daifmt->fmt) {
|
|
case HDMI_I2S:
|
|
if (daifmt->bit_clk_inv || daifmt->frame_clk_inv ||
|
|
daifmt->bit_clk_master || daifmt->frame_clk_master) {
|
|
dev_err(dev, "%s: Bad flags %d %d %d %d\n", __func__,
|
|
daifmt->bit_clk_inv, daifmt->frame_clk_inv,
|
|
daifmt->bit_clk_master,
|
|
daifmt->frame_clk_master);
|
|
return -EINVAL;
|
|
}
|
|
for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++)
|
|
if (priv->audio_port[i].format == AFMT_I2S)
|
|
audio.config = priv->audio_port[i].config;
|
|
audio.format = AFMT_I2S;
|
|
break;
|
|
case HDMI_SPDIF:
|
|
for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++)
|
|
if (priv->audio_port[i].format == AFMT_SPDIF)
|
|
audio.config = priv->audio_port[i].config;
|
|
audio.format = AFMT_SPDIF;
|
|
break;
|
|
default:
|
|
dev_err(dev, "%s: Invalid format %d\n", __func__, daifmt->fmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (audio.config == 0) {
|
|
dev_err(dev, "%s: No audio configuration found\n", __func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&priv->audio_mutex);
|
|
if (priv->supports_infoframes && priv->sink_has_audio)
|
|
ret = tda998x_configure_audio(priv, &audio);
|
|
else
|
|
ret = 0;
|
|
|
|
if (ret == 0)
|
|
priv->audio_params = audio;
|
|
mutex_unlock(&priv->audio_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void tda998x_audio_shutdown(struct device *dev, void *data)
|
|
{
|
|
struct tda998x_priv *priv = dev_get_drvdata(dev);
|
|
|
|
mutex_lock(&priv->audio_mutex);
|
|
|
|
reg_write(priv, REG_ENA_AP, 0);
|
|
|
|
priv->audio_params.format = AFMT_UNUSED;
|
|
|
|
mutex_unlock(&priv->audio_mutex);
|
|
}
|
|
|
|
int tda998x_audio_digital_mute(struct device *dev, void *data, bool enable)
|
|
{
|
|
struct tda998x_priv *priv = dev_get_drvdata(dev);
|
|
|
|
mutex_lock(&priv->audio_mutex);
|
|
|
|
tda998x_audio_mute(priv, enable);
|
|
|
|
mutex_unlock(&priv->audio_mutex);
|
|
return 0;
|
|
}
|
|
|
|
static int tda998x_audio_get_eld(struct device *dev, void *data,
|
|
uint8_t *buf, size_t len)
|
|
{
|
|
struct tda998x_priv *priv = dev_get_drvdata(dev);
|
|
|
|
mutex_lock(&priv->audio_mutex);
|
|
memcpy(buf, priv->connector.eld,
|
|
min(sizeof(priv->connector.eld), len));
|
|
mutex_unlock(&priv->audio_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct hdmi_codec_ops audio_codec_ops = {
|
|
.hw_params = tda998x_audio_hw_params,
|
|
.audio_shutdown = tda998x_audio_shutdown,
|
|
.digital_mute = tda998x_audio_digital_mute,
|
|
.get_eld = tda998x_audio_get_eld,
|
|
};
|
|
|
|
static int tda998x_audio_codec_init(struct tda998x_priv *priv,
|
|
struct device *dev)
|
|
{
|
|
struct hdmi_codec_pdata codec_data = {
|
|
.ops = &audio_codec_ops,
|
|
.max_i2s_channels = 2,
|
|
};
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(priv->audio_port); i++) {
|
|
if (priv->audio_port[i].format == AFMT_I2S &&
|
|
priv->audio_port[i].config != 0)
|
|
codec_data.i2s = 1;
|
|
if (priv->audio_port[i].format == AFMT_SPDIF &&
|
|
priv->audio_port[i].config != 0)
|
|
codec_data.spdif = 1;
|
|
}
|
|
|
|
priv->audio_pdev = platform_device_register_data(
|
|
dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_AUTO,
|
|
&codec_data, sizeof(codec_data));
|
|
|
|
return PTR_ERR_OR_ZERO(priv->audio_pdev);
|
|
}
|
|
|
|
/* DRM connector functions */
|
|
|
|
static enum drm_connector_status
|
|
tda998x_connector_detect(struct drm_connector *connector, bool force)
|
|
{
|
|
struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
|
|
u8 val = cec_read(priv, REG_CEC_RXSHPDLEV);
|
|
|
|
return (val & CEC_RXSHPDLEV_HPD) ? connector_status_connected :
|
|
connector_status_disconnected;
|
|
}
|
|
|
|
static void tda998x_connector_destroy(struct drm_connector *connector)
|
|
{
|
|
drm_connector_cleanup(connector);
|
|
}
|
|
|
|
static const struct drm_connector_funcs tda998x_connector_funcs = {
|
|
.dpms = drm_helper_connector_dpms,
|
|
.reset = drm_atomic_helper_connector_reset,
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
.detect = tda998x_connector_detect,
|
|
.destroy = tda998x_connector_destroy,
|
|
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
|
|
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
|
|
};
|
|
|
|
static int read_edid_block(void *data, u8 *buf, unsigned int blk, size_t length)
|
|
{
|
|
struct tda998x_priv *priv = data;
|
|
u8 offset, segptr;
|
|
int ret, i;
|
|
|
|
offset = (blk & 1) ? 128 : 0;
|
|
segptr = blk / 2;
|
|
|
|
mutex_lock(&priv->edid_mutex);
|
|
|
|
reg_write(priv, REG_DDC_ADDR, 0xa0);
|
|
reg_write(priv, REG_DDC_OFFS, offset);
|
|
reg_write(priv, REG_DDC_SEGM_ADDR, 0x60);
|
|
reg_write(priv, REG_DDC_SEGM, segptr);
|
|
|
|
/* enable reading EDID: */
|
|
priv->wq_edid_wait = 1;
|
|
reg_write(priv, REG_EDID_CTRL, 0x1);
|
|
|
|
/* flag must be cleared by sw: */
|
|
reg_write(priv, REG_EDID_CTRL, 0x0);
|
|
|
|
/* wait for block read to complete: */
|
|
if (priv->hdmi->irq) {
|
|
i = wait_event_timeout(priv->wq_edid,
|
|
!priv->wq_edid_wait,
|
|
msecs_to_jiffies(100));
|
|
if (i < 0) {
|
|
dev_err(&priv->hdmi->dev, "read edid wait err %d\n", i);
|
|
ret = i;
|
|
goto failed;
|
|
}
|
|
} else {
|
|
for (i = 100; i > 0; i--) {
|
|
msleep(1);
|
|
ret = reg_read(priv, REG_INT_FLAGS_2);
|
|
if (ret < 0)
|
|
goto failed;
|
|
if (ret & INT_FLAGS_2_EDID_BLK_RD)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (i == 0) {
|
|
dev_err(&priv->hdmi->dev, "read edid timeout\n");
|
|
ret = -ETIMEDOUT;
|
|
goto failed;
|
|
}
|
|
|
|
ret = reg_read_range(priv, REG_EDID_DATA_0, buf, length);
|
|
if (ret != length) {
|
|
dev_err(&priv->hdmi->dev, "failed to read edid block %d: %d\n",
|
|
blk, ret);
|
|
goto failed;
|
|
}
|
|
|
|
ret = 0;
|
|
|
|
failed:
|
|
mutex_unlock(&priv->edid_mutex);
|
|
return ret;
|
|
}
|
|
|
|
static int tda998x_connector_get_modes(struct drm_connector *connector)
|
|
{
|
|
struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
|
|
struct edid *edid;
|
|
int n;
|
|
|
|
/*
|
|
* If we get killed while waiting for the HPD timeout, return
|
|
* no modes found: we are not in a restartable path, so we
|
|
* can't handle signals gracefully.
|
|
*/
|
|
if (tda998x_edid_delay_wait(priv))
|
|
return 0;
|
|
|
|
if (priv->rev == TDA19988)
|
|
reg_clear(priv, REG_TX4, TX4_PD_RAM);
|
|
|
|
edid = drm_do_get_edid(connector, read_edid_block, priv);
|
|
|
|
if (priv->rev == TDA19988)
|
|
reg_set(priv, REG_TX4, TX4_PD_RAM);
|
|
|
|
if (!edid) {
|
|
dev_warn(&priv->hdmi->dev, "failed to read EDID\n");
|
|
return 0;
|
|
}
|
|
|
|
drm_connector_update_edid_property(connector, edid);
|
|
cec_notifier_set_phys_addr_from_edid(priv->cec_notify, edid);
|
|
|
|
mutex_lock(&priv->audio_mutex);
|
|
n = drm_add_edid_modes(connector, edid);
|
|
priv->sink_has_audio = drm_detect_monitor_audio(edid);
|
|
mutex_unlock(&priv->audio_mutex);
|
|
|
|
kfree(edid);
|
|
|
|
return n;
|
|
}
|
|
|
|
static struct drm_encoder *
|
|
tda998x_connector_best_encoder(struct drm_connector *connector)
|
|
{
|
|
struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
|
|
|
|
return priv->bridge.encoder;
|
|
}
|
|
|
|
static
|
|
const struct drm_connector_helper_funcs tda998x_connector_helper_funcs = {
|
|
.get_modes = tda998x_connector_get_modes,
|
|
.best_encoder = tda998x_connector_best_encoder,
|
|
};
|
|
|
|
static int tda998x_connector_init(struct tda998x_priv *priv,
|
|
struct drm_device *drm)
|
|
{
|
|
struct drm_connector *connector = &priv->connector;
|
|
int ret;
|
|
|
|
connector->interlace_allowed = 1;
|
|
|
|
if (priv->hdmi->irq)
|
|
connector->polled = DRM_CONNECTOR_POLL_HPD;
|
|
else
|
|
connector->polled = DRM_CONNECTOR_POLL_CONNECT |
|
|
DRM_CONNECTOR_POLL_DISCONNECT;
|
|
|
|
drm_connector_helper_add(connector, &tda998x_connector_helper_funcs);
|
|
ret = drm_connector_init(drm, connector, &tda998x_connector_funcs,
|
|
DRM_MODE_CONNECTOR_HDMIA);
|
|
if (ret)
|
|
return ret;
|
|
|
|
drm_connector_attach_encoder(&priv->connector,
|
|
priv->bridge.encoder);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* DRM bridge functions */
|
|
|
|
static int tda998x_bridge_attach(struct drm_bridge *bridge)
|
|
{
|
|
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
|
|
|
|
return tda998x_connector_init(priv, bridge->dev);
|
|
}
|
|
|
|
static void tda998x_bridge_detach(struct drm_bridge *bridge)
|
|
{
|
|
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
|
|
|
|
drm_connector_cleanup(&priv->connector);
|
|
}
|
|
|
|
static enum drm_mode_status tda998x_bridge_mode_valid(struct drm_bridge *bridge,
|
|
const struct drm_display_mode *mode)
|
|
{
|
|
/* TDA19988 dotclock can go up to 165MHz */
|
|
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
|
|
|
|
if (mode->clock > ((priv->rev == TDA19988) ? 165000 : 150000))
|
|
return MODE_CLOCK_HIGH;
|
|
if (mode->htotal >= BIT(13))
|
|
return MODE_BAD_HVALUE;
|
|
if (mode->vtotal >= BIT(11))
|
|
return MODE_BAD_VVALUE;
|
|
return MODE_OK;
|
|
}
|
|
|
|
static void tda998x_bridge_enable(struct drm_bridge *bridge)
|
|
{
|
|
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
|
|
|
|
if (!priv->is_on) {
|
|
/* enable video ports, audio will be enabled later */
|
|
reg_write(priv, REG_ENA_VP_0, 0xff);
|
|
reg_write(priv, REG_ENA_VP_1, 0xff);
|
|
reg_write(priv, REG_ENA_VP_2, 0xff);
|
|
/* set muxing after enabling ports: */
|
|
reg_write(priv, REG_VIP_CNTRL_0, priv->vip_cntrl_0);
|
|
reg_write(priv, REG_VIP_CNTRL_1, priv->vip_cntrl_1);
|
|
reg_write(priv, REG_VIP_CNTRL_2, priv->vip_cntrl_2);
|
|
|
|
priv->is_on = true;
|
|
}
|
|
}
|
|
|
|
static void tda998x_bridge_disable(struct drm_bridge *bridge)
|
|
{
|
|
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
|
|
|
|
if (priv->is_on) {
|
|
/* disable video ports */
|
|
reg_write(priv, REG_ENA_VP_0, 0x00);
|
|
reg_write(priv, REG_ENA_VP_1, 0x00);
|
|
reg_write(priv, REG_ENA_VP_2, 0x00);
|
|
|
|
priv->is_on = false;
|
|
}
|
|
}
|
|
|
|
static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
|
|
unsigned long tmds_clock;
|
|
u16 ref_pix, ref_line, n_pix, n_line;
|
|
u16 hs_pix_s, hs_pix_e;
|
|
u16 vs1_pix_s, vs1_pix_e, vs1_line_s, vs1_line_e;
|
|
u16 vs2_pix_s, vs2_pix_e, vs2_line_s, vs2_line_e;
|
|
u16 vwin1_line_s, vwin1_line_e;
|
|
u16 vwin2_line_s, vwin2_line_e;
|
|
u16 de_pix_s, de_pix_e;
|
|
u8 reg, div, rep;
|
|
|
|
/*
|
|
* Internally TDA998x is using ITU-R BT.656 style sync but
|
|
* we get VESA style sync. TDA998x is using a reference pixel
|
|
* relative to ITU to sync to the input frame and for output
|
|
* sync generation. Currently, we are using reference detection
|
|
* from HS/VS, i.e. REFPIX/REFLINE denote frame start sync point
|
|
* which is position of rising VS with coincident rising HS.
|
|
*
|
|
* Now there is some issues to take care of:
|
|
* - HDMI data islands require sync-before-active
|
|
* - TDA998x register values must be > 0 to be enabled
|
|
* - REFLINE needs an additional offset of +1
|
|
* - REFPIX needs an addtional offset of +1 for UYUV and +3 for RGB
|
|
*
|
|
* So we add +1 to all horizontal and vertical register values,
|
|
* plus an additional +3 for REFPIX as we are using RGB input only.
|
|
*/
|
|
n_pix = mode->htotal;
|
|
n_line = mode->vtotal;
|
|
|
|
hs_pix_e = mode->hsync_end - mode->hdisplay;
|
|
hs_pix_s = mode->hsync_start - mode->hdisplay;
|
|
de_pix_e = mode->htotal;
|
|
de_pix_s = mode->htotal - mode->hdisplay;
|
|
ref_pix = 3 + hs_pix_s;
|
|
|
|
/*
|
|
* Attached LCD controllers may generate broken sync. Allow
|
|
* those to adjust the position of the rising VS edge by adding
|
|
* HSKEW to ref_pix.
|
|
*/
|
|
if (adjusted_mode->flags & DRM_MODE_FLAG_HSKEW)
|
|
ref_pix += adjusted_mode->hskew;
|
|
|
|
if ((mode->flags & DRM_MODE_FLAG_INTERLACE) == 0) {
|
|
ref_line = 1 + mode->vsync_start - mode->vdisplay;
|
|
vwin1_line_s = mode->vtotal - mode->vdisplay - 1;
|
|
vwin1_line_e = vwin1_line_s + mode->vdisplay;
|
|
vs1_pix_s = vs1_pix_e = hs_pix_s;
|
|
vs1_line_s = mode->vsync_start - mode->vdisplay;
|
|
vs1_line_e = vs1_line_s +
|
|
mode->vsync_end - mode->vsync_start;
|
|
vwin2_line_s = vwin2_line_e = 0;
|
|
vs2_pix_s = vs2_pix_e = 0;
|
|
vs2_line_s = vs2_line_e = 0;
|
|
} else {
|
|
ref_line = 1 + (mode->vsync_start - mode->vdisplay)/2;
|
|
vwin1_line_s = (mode->vtotal - mode->vdisplay)/2;
|
|
vwin1_line_e = vwin1_line_s + mode->vdisplay/2;
|
|
vs1_pix_s = vs1_pix_e = hs_pix_s;
|
|
vs1_line_s = (mode->vsync_start - mode->vdisplay)/2;
|
|
vs1_line_e = vs1_line_s +
|
|
(mode->vsync_end - mode->vsync_start)/2;
|
|
vwin2_line_s = vwin1_line_s + mode->vtotal/2;
|
|
vwin2_line_e = vwin2_line_s + mode->vdisplay/2;
|
|
vs2_pix_s = vs2_pix_e = hs_pix_s + mode->htotal/2;
|
|
vs2_line_s = vs1_line_s + mode->vtotal/2 ;
|
|
vs2_line_e = vs2_line_s +
|
|
(mode->vsync_end - mode->vsync_start)/2;
|
|
}
|
|
|
|
tmds_clock = mode->clock;
|
|
|
|
/*
|
|
* The divisor is power-of-2. The TDA9983B datasheet gives
|
|
* this as ranges of Msample/s, which is 10x the TMDS clock:
|
|
* 0 - 800 to 1500 Msample/s
|
|
* 1 - 400 to 800 Msample/s
|
|
* 2 - 200 to 400 Msample/s
|
|
* 3 - as 2 above
|
|
*/
|
|
for (div = 0; div < 3; div++)
|
|
if (80000 >> div <= tmds_clock)
|
|
break;
|
|
|
|
mutex_lock(&priv->audio_mutex);
|
|
|
|
/* mute the audio FIFO: */
|
|
reg_set(priv, REG_AIP_CNTRL_0, AIP_CNTRL_0_RST_FIFO);
|
|
|
|
/* set HDMI HDCP mode off: */
|
|
reg_write(priv, REG_TBG_CNTRL_1, TBG_CNTRL_1_DWIN_DIS);
|
|
reg_clear(priv, REG_TX33, TX33_HDMI);
|
|
reg_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(0));
|
|
|
|
/* no pre-filter or interpolator: */
|
|
reg_write(priv, REG_HVF_CNTRL_0, HVF_CNTRL_0_PREFIL(0) |
|
|
HVF_CNTRL_0_INTPOL(0));
|
|
reg_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_PREFILT);
|
|
reg_write(priv, REG_VIP_CNTRL_5, VIP_CNTRL_5_SP_CNT(0));
|
|
reg_write(priv, REG_VIP_CNTRL_4, VIP_CNTRL_4_BLANKIT(0) |
|
|
VIP_CNTRL_4_BLC(0));
|
|
|
|
reg_clear(priv, REG_PLL_SERIAL_1, PLL_SERIAL_1_SRL_MAN_IZ);
|
|
reg_clear(priv, REG_PLL_SERIAL_3, PLL_SERIAL_3_SRL_CCIR |
|
|
PLL_SERIAL_3_SRL_DE);
|
|
reg_write(priv, REG_SERIALIZER, 0);
|
|
reg_write(priv, REG_HVF_CNTRL_1, HVF_CNTRL_1_VQR(0));
|
|
|
|
/* TODO enable pixel repeat for pixel rates less than 25Msamp/s */
|
|
rep = 0;
|
|
reg_write(priv, REG_RPT_CNTRL, 0);
|
|
reg_write(priv, REG_SEL_CLK, SEL_CLK_SEL_VRF_CLK(0) |
|
|
SEL_CLK_SEL_CLK1 | SEL_CLK_ENA_SC_CLK);
|
|
|
|
reg_write(priv, REG_PLL_SERIAL_2, PLL_SERIAL_2_SRL_NOSC(div) |
|
|
PLL_SERIAL_2_SRL_PR(rep));
|
|
|
|
/* set color matrix bypass flag: */
|
|
reg_write(priv, REG_MAT_CONTRL, MAT_CONTRL_MAT_BP |
|
|
MAT_CONTRL_MAT_SC(1));
|
|
reg_set(priv, REG_FEAT_POWERDOWN, FEAT_POWERDOWN_CSC);
|
|
|
|
/* set BIAS tmds value: */
|
|
reg_write(priv, REG_ANA_GENERAL, 0x09);
|
|
|
|
/*
|
|
* Sync on rising HSYNC/VSYNC
|
|
*/
|
|
reg = VIP_CNTRL_3_SYNC_HS;
|
|
|
|
/*
|
|
* TDA19988 requires high-active sync at input stage,
|
|
* so invert low-active sync provided by master encoder here
|
|
*/
|
|
if (mode->flags & DRM_MODE_FLAG_NHSYNC)
|
|
reg |= VIP_CNTRL_3_H_TGL;
|
|
if (mode->flags & DRM_MODE_FLAG_NVSYNC)
|
|
reg |= VIP_CNTRL_3_V_TGL;
|
|
reg_write(priv, REG_VIP_CNTRL_3, reg);
|
|
|
|
reg_write(priv, REG_VIDFORMAT, 0x00);
|
|
reg_write16(priv, REG_REFPIX_MSB, ref_pix);
|
|
reg_write16(priv, REG_REFLINE_MSB, ref_line);
|
|
reg_write16(priv, REG_NPIX_MSB, n_pix);
|
|
reg_write16(priv, REG_NLINE_MSB, n_line);
|
|
reg_write16(priv, REG_VS_LINE_STRT_1_MSB, vs1_line_s);
|
|
reg_write16(priv, REG_VS_PIX_STRT_1_MSB, vs1_pix_s);
|
|
reg_write16(priv, REG_VS_LINE_END_1_MSB, vs1_line_e);
|
|
reg_write16(priv, REG_VS_PIX_END_1_MSB, vs1_pix_e);
|
|
reg_write16(priv, REG_VS_LINE_STRT_2_MSB, vs2_line_s);
|
|
reg_write16(priv, REG_VS_PIX_STRT_2_MSB, vs2_pix_s);
|
|
reg_write16(priv, REG_VS_LINE_END_2_MSB, vs2_line_e);
|
|
reg_write16(priv, REG_VS_PIX_END_2_MSB, vs2_pix_e);
|
|
reg_write16(priv, REG_HS_PIX_START_MSB, hs_pix_s);
|
|
reg_write16(priv, REG_HS_PIX_STOP_MSB, hs_pix_e);
|
|
reg_write16(priv, REG_VWIN_START_1_MSB, vwin1_line_s);
|
|
reg_write16(priv, REG_VWIN_END_1_MSB, vwin1_line_e);
|
|
reg_write16(priv, REG_VWIN_START_2_MSB, vwin2_line_s);
|
|
reg_write16(priv, REG_VWIN_END_2_MSB, vwin2_line_e);
|
|
reg_write16(priv, REG_DE_START_MSB, de_pix_s);
|
|
reg_write16(priv, REG_DE_STOP_MSB, de_pix_e);
|
|
|
|
if (priv->rev == TDA19988) {
|
|
/* let incoming pixels fill the active space (if any) */
|
|
reg_write(priv, REG_ENABLE_SPACE, 0x00);
|
|
}
|
|
|
|
/*
|
|
* Always generate sync polarity relative to input sync and
|
|
* revert input stage toggled sync at output stage
|
|
*/
|
|
reg = TBG_CNTRL_1_DWIN_DIS | TBG_CNTRL_1_TGL_EN;
|
|
if (mode->flags & DRM_MODE_FLAG_NHSYNC)
|
|
reg |= TBG_CNTRL_1_H_TGL;
|
|
if (mode->flags & DRM_MODE_FLAG_NVSYNC)
|
|
reg |= TBG_CNTRL_1_V_TGL;
|
|
reg_write(priv, REG_TBG_CNTRL_1, reg);
|
|
|
|
/* must be last register set: */
|
|
reg_write(priv, REG_TBG_CNTRL_0, 0);
|
|
|
|
priv->tmds_clock = adjusted_mode->clock;
|
|
|
|
/* CEA-861B section 6 says that:
|
|
* CEA version 1 (CEA-861) has no support for infoframes.
|
|
* CEA version 2 (CEA-861A) supports version 1 AVI infoframes,
|
|
* and optional basic audio.
|
|
* CEA version 3 (CEA-861B) supports version 1 and 2 AVI infoframes,
|
|
* and optional digital audio, with audio infoframes.
|
|
*
|
|
* Since we only support generation of version 2 AVI infoframes,
|
|
* ignore CEA version 2 and below (iow, behave as if we're a
|
|
* CEA-861 source.)
|
|
*/
|
|
priv->supports_infoframes = priv->connector.display_info.cea_rev >= 3;
|
|
|
|
if (priv->supports_infoframes) {
|
|
/* We need to turn HDMI HDCP stuff on to get audio through */
|
|
reg &= ~TBG_CNTRL_1_DWIN_DIS;
|
|
reg_write(priv, REG_TBG_CNTRL_1, reg);
|
|
reg_write(priv, REG_ENC_CNTRL, ENC_CNTRL_CTL_CODE(1));
|
|
reg_set(priv, REG_TX33, TX33_HDMI);
|
|
|
|
tda998x_write_avi(priv, adjusted_mode);
|
|
|
|
if (priv->audio_params.format != AFMT_UNUSED &&
|
|
priv->sink_has_audio)
|
|
tda998x_configure_audio(priv, &priv->audio_params);
|
|
}
|
|
|
|
mutex_unlock(&priv->audio_mutex);
|
|
}
|
|
|
|
static const struct drm_bridge_funcs tda998x_bridge_funcs = {
|
|
.attach = tda998x_bridge_attach,
|
|
.detach = tda998x_bridge_detach,
|
|
.mode_valid = tda998x_bridge_mode_valid,
|
|
.disable = tda998x_bridge_disable,
|
|
.mode_set = tda998x_bridge_mode_set,
|
|
.enable = tda998x_bridge_enable,
|
|
};
|
|
|
|
/* I2C driver functions */
|
|
|
|
static int tda998x_get_audio_ports(struct tda998x_priv *priv,
|
|
struct device_node *np)
|
|
{
|
|
const u32 *port_data;
|
|
u32 size;
|
|
int i;
|
|
|
|
port_data = of_get_property(np, "audio-ports", &size);
|
|
if (!port_data)
|
|
return 0;
|
|
|
|
size /= sizeof(u32);
|
|
if (size > 2 * ARRAY_SIZE(priv->audio_port) || size % 2 != 0) {
|
|
dev_err(&priv->hdmi->dev,
|
|
"Bad number of elements in audio-ports dt-property\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
size /= 2;
|
|
|
|
for (i = 0; i < size; i++) {
|
|
u8 afmt = be32_to_cpup(&port_data[2*i]);
|
|
u8 ena_ap = be32_to_cpup(&port_data[2*i+1]);
|
|
|
|
if (afmt != AFMT_SPDIF && afmt != AFMT_I2S) {
|
|
dev_err(&priv->hdmi->dev,
|
|
"Bad audio format %u\n", afmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
priv->audio_port[i].format = afmt;
|
|
priv->audio_port[i].config = ena_ap;
|
|
}
|
|
|
|
if (priv->audio_port[0].format == priv->audio_port[1].format) {
|
|
dev_err(&priv->hdmi->dev,
|
|
"There can only be on I2S port and one SPDIF port\n");
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void tda998x_set_config(struct tda998x_priv *priv,
|
|
const struct tda998x_encoder_params *p)
|
|
{
|
|
priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(p->swap_a) |
|
|
(p->mirr_a ? VIP_CNTRL_0_MIRR_A : 0) |
|
|
VIP_CNTRL_0_SWAP_B(p->swap_b) |
|
|
(p->mirr_b ? VIP_CNTRL_0_MIRR_B : 0);
|
|
priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(p->swap_c) |
|
|
(p->mirr_c ? VIP_CNTRL_1_MIRR_C : 0) |
|
|
VIP_CNTRL_1_SWAP_D(p->swap_d) |
|
|
(p->mirr_d ? VIP_CNTRL_1_MIRR_D : 0);
|
|
priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(p->swap_e) |
|
|
(p->mirr_e ? VIP_CNTRL_2_MIRR_E : 0) |
|
|
VIP_CNTRL_2_SWAP_F(p->swap_f) |
|
|
(p->mirr_f ? VIP_CNTRL_2_MIRR_F : 0);
|
|
|
|
priv->audio_params = p->audio_params;
|
|
}
|
|
|
|
static void tda998x_destroy(struct device *dev)
|
|
{
|
|
struct tda998x_priv *priv = dev_get_drvdata(dev);
|
|
|
|
drm_bridge_remove(&priv->bridge);
|
|
|
|
/* disable all IRQs and free the IRQ handler */
|
|
cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
|
|
reg_clear(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
|
|
|
|
if (priv->audio_pdev)
|
|
platform_device_unregister(priv->audio_pdev);
|
|
|
|
if (priv->hdmi->irq)
|
|
free_irq(priv->hdmi->irq, priv);
|
|
|
|
del_timer_sync(&priv->edid_delay_timer);
|
|
cancel_work_sync(&priv->detect_work);
|
|
|
|
i2c_unregister_device(priv->cec);
|
|
|
|
if (priv->cec_notify)
|
|
cec_notifier_put(priv->cec_notify);
|
|
}
|
|
|
|
static int tda998x_create(struct device *dev)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
struct device_node *np = client->dev.of_node;
|
|
struct i2c_board_info cec_info;
|
|
struct tda998x_priv *priv;
|
|
u32 video;
|
|
int rev_lo, rev_hi, ret;
|
|
|
|
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
dev_set_drvdata(dev, priv);
|
|
|
|
mutex_init(&priv->mutex); /* protect the page access */
|
|
mutex_init(&priv->audio_mutex); /* protect access from audio thread */
|
|
mutex_init(&priv->edid_mutex);
|
|
INIT_LIST_HEAD(&priv->bridge.list);
|
|
init_waitqueue_head(&priv->edid_delay_waitq);
|
|
timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
|
|
INIT_WORK(&priv->detect_work, tda998x_detect_work);
|
|
|
|
priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(2) | VIP_CNTRL_0_SWAP_B(3);
|
|
priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(0) | VIP_CNTRL_1_SWAP_D(1);
|
|
priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(4) | VIP_CNTRL_2_SWAP_F(5);
|
|
|
|
/* CEC I2C address bound to TDA998x I2C addr by configuration pins */
|
|
priv->cec_addr = 0x34 + (client->addr & 0x03);
|
|
priv->current_page = 0xff;
|
|
priv->hdmi = client;
|
|
|
|
/* wake up the device: */
|
|
cec_write(priv, REG_CEC_ENAMODS,
|
|
CEC_ENAMODS_EN_RXSENS | CEC_ENAMODS_EN_HDMI);
|
|
|
|
tda998x_reset(priv);
|
|
|
|
/* read version: */
|
|
rev_lo = reg_read(priv, REG_VERSION_LSB);
|
|
if (rev_lo < 0) {
|
|
dev_err(dev, "failed to read version: %d\n", rev_lo);
|
|
return rev_lo;
|
|
}
|
|
|
|
rev_hi = reg_read(priv, REG_VERSION_MSB);
|
|
if (rev_hi < 0) {
|
|
dev_err(dev, "failed to read version: %d\n", rev_hi);
|
|
return rev_hi;
|
|
}
|
|
|
|
priv->rev = rev_lo | rev_hi << 8;
|
|
|
|
/* mask off feature bits: */
|
|
priv->rev &= ~0x30; /* not-hdcp and not-scalar bit */
|
|
|
|
switch (priv->rev) {
|
|
case TDA9989N2:
|
|
dev_info(dev, "found TDA9989 n2");
|
|
break;
|
|
case TDA19989:
|
|
dev_info(dev, "found TDA19989");
|
|
break;
|
|
case TDA19989N2:
|
|
dev_info(dev, "found TDA19989 n2");
|
|
break;
|
|
case TDA19988:
|
|
dev_info(dev, "found TDA19988");
|
|
break;
|
|
default:
|
|
dev_err(dev, "found unsupported device: %04x\n", priv->rev);
|
|
return -ENXIO;
|
|
}
|
|
|
|
/* after reset, enable DDC: */
|
|
reg_write(priv, REG_DDC_DISABLE, 0x00);
|
|
|
|
/* set clock on DDC channel: */
|
|
reg_write(priv, REG_TX3, 39);
|
|
|
|
/* if necessary, disable multi-master: */
|
|
if (priv->rev == TDA19989)
|
|
reg_set(priv, REG_I2C_MASTER, I2C_MASTER_DIS_MM);
|
|
|
|
cec_write(priv, REG_CEC_FRO_IM_CLK_CTRL,
|
|
CEC_FRO_IM_CLK_CTRL_GHOST_DIS | CEC_FRO_IM_CLK_CTRL_IMCLK_SEL);
|
|
|
|
/* ensure interrupts are disabled */
|
|
cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
|
|
|
|
/* clear pending interrupts */
|
|
cec_read(priv, REG_CEC_RXSHPDINT);
|
|
reg_read(priv, REG_INT_FLAGS_0);
|
|
reg_read(priv, REG_INT_FLAGS_1);
|
|
reg_read(priv, REG_INT_FLAGS_2);
|
|
|
|
/* initialize the optional IRQ */
|
|
if (client->irq) {
|
|
unsigned long irq_flags;
|
|
|
|
/* init read EDID waitqueue and HDP work */
|
|
init_waitqueue_head(&priv->wq_edid);
|
|
|
|
irq_flags =
|
|
irqd_get_trigger_type(irq_get_irq_data(client->irq));
|
|
|
|
priv->cec_glue.irq_flags = irq_flags;
|
|
|
|
irq_flags |= IRQF_SHARED | IRQF_ONESHOT;
|
|
ret = request_threaded_irq(client->irq, NULL,
|
|
tda998x_irq_thread, irq_flags,
|
|
"tda998x", priv);
|
|
if (ret) {
|
|
dev_err(dev, "failed to request IRQ#%u: %d\n",
|
|
client->irq, ret);
|
|
goto err_irq;
|
|
}
|
|
|
|
/* enable HPD irq */
|
|
cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
|
|
}
|
|
|
|
priv->cec_notify = cec_notifier_get(dev);
|
|
if (!priv->cec_notify) {
|
|
ret = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
priv->cec_glue.parent = dev;
|
|
priv->cec_glue.data = priv;
|
|
priv->cec_glue.init = tda998x_cec_hook_init;
|
|
priv->cec_glue.exit = tda998x_cec_hook_exit;
|
|
priv->cec_glue.open = tda998x_cec_hook_open;
|
|
priv->cec_glue.release = tda998x_cec_hook_release;
|
|
|
|
/*
|
|
* Some TDA998x are actually two I2C devices merged onto one piece
|
|
* of silicon: TDA9989 and TDA19989 combine the HDMI transmitter
|
|
* with a slightly modified TDA9950 CEC device. The CEC device
|
|
* is at the TDA9950 address, with the address pins strapped across
|
|
* to the TDA998x address pins. Hence, it always has the same
|
|
* offset.
|
|
*/
|
|
memset(&cec_info, 0, sizeof(cec_info));
|
|
strlcpy(cec_info.type, "tda9950", sizeof(cec_info.type));
|
|
cec_info.addr = priv->cec_addr;
|
|
cec_info.platform_data = &priv->cec_glue;
|
|
cec_info.irq = client->irq;
|
|
|
|
priv->cec = i2c_new_device(client->adapter, &cec_info);
|
|
if (!priv->cec) {
|
|
ret = -ENODEV;
|
|
goto fail;
|
|
}
|
|
|
|
/* enable EDID read irq: */
|
|
reg_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
|
|
|
|
if (np) {
|
|
/* get the device tree parameters */
|
|
ret = of_property_read_u32(np, "video-ports", &video);
|
|
if (ret == 0) {
|
|
priv->vip_cntrl_0 = video >> 16;
|
|
priv->vip_cntrl_1 = video >> 8;
|
|
priv->vip_cntrl_2 = video;
|
|
}
|
|
|
|
ret = tda998x_get_audio_ports(priv, np);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
if (priv->audio_port[0].format != AFMT_UNUSED)
|
|
tda998x_audio_codec_init(priv, &client->dev);
|
|
} else if (dev->platform_data) {
|
|
tda998x_set_config(priv, dev->platform_data);
|
|
}
|
|
|
|
priv->bridge.funcs = &tda998x_bridge_funcs;
|
|
#ifdef CONFIG_OF
|
|
priv->bridge.of_node = dev->of_node;
|
|
#endif
|
|
|
|
drm_bridge_add(&priv->bridge);
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
tda998x_destroy(dev);
|
|
err_irq:
|
|
return ret;
|
|
}
|
|
|
|
/* DRM encoder functions */
|
|
|
|
static void tda998x_encoder_destroy(struct drm_encoder *encoder)
|
|
{
|
|
drm_encoder_cleanup(encoder);
|
|
}
|
|
|
|
static const struct drm_encoder_funcs tda998x_encoder_funcs = {
|
|
.destroy = tda998x_encoder_destroy,
|
|
};
|
|
|
|
static int tda998x_encoder_init(struct device *dev, struct drm_device *drm)
|
|
{
|
|
struct tda998x_priv *priv = dev_get_drvdata(dev);
|
|
u32 crtcs = 0;
|
|
int ret;
|
|
|
|
if (dev->of_node)
|
|
crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
|
|
|
|
/* If no CRTCs were found, fall back to our old behaviour */
|
|
if (crtcs == 0) {
|
|
dev_warn(dev, "Falling back to first CRTC\n");
|
|
crtcs = 1 << 0;
|
|
}
|
|
|
|
priv->encoder.possible_crtcs = crtcs;
|
|
|
|
ret = drm_encoder_init(drm, &priv->encoder, &tda998x_encoder_funcs,
|
|
DRM_MODE_ENCODER_TMDS, NULL);
|
|
if (ret)
|
|
goto err_encoder;
|
|
|
|
ret = drm_bridge_attach(&priv->encoder, &priv->bridge, NULL);
|
|
if (ret)
|
|
goto err_bridge;
|
|
|
|
return 0;
|
|
|
|
err_bridge:
|
|
drm_encoder_cleanup(&priv->encoder);
|
|
err_encoder:
|
|
return ret;
|
|
}
|
|
|
|
static int tda998x_bind(struct device *dev, struct device *master, void *data)
|
|
{
|
|
struct drm_device *drm = data;
|
|
|
|
return tda998x_encoder_init(dev, drm);
|
|
}
|
|
|
|
static void tda998x_unbind(struct device *dev, struct device *master,
|
|
void *data)
|
|
{
|
|
struct tda998x_priv *priv = dev_get_drvdata(dev);
|
|
|
|
drm_encoder_cleanup(&priv->encoder);
|
|
}
|
|
|
|
static const struct component_ops tda998x_ops = {
|
|
.bind = tda998x_bind,
|
|
.unbind = tda998x_unbind,
|
|
};
|
|
|
|
static int
|
|
tda998x_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
|
{
|
|
int ret;
|
|
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
|
dev_warn(&client->dev, "adapter does not support I2C\n");
|
|
return -EIO;
|
|
}
|
|
|
|
ret = tda998x_create(&client->dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = component_add(&client->dev, &tda998x_ops);
|
|
if (ret)
|
|
tda998x_destroy(&client->dev);
|
|
return ret;
|
|
}
|
|
|
|
static int tda998x_remove(struct i2c_client *client)
|
|
{
|
|
component_del(&client->dev, &tda998x_ops);
|
|
tda998x_destroy(&client->dev);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id tda998x_dt_ids[] = {
|
|
{ .compatible = "nxp,tda998x", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, tda998x_dt_ids);
|
|
#endif
|
|
|
|
static const struct i2c_device_id tda998x_ids[] = {
|
|
{ "tda998x", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, tda998x_ids);
|
|
|
|
static struct i2c_driver tda998x_driver = {
|
|
.probe = tda998x_probe,
|
|
.remove = tda998x_remove,
|
|
.driver = {
|
|
.name = "tda998x",
|
|
.of_match_table = of_match_ptr(tda998x_dt_ids),
|
|
},
|
|
.id_table = tda998x_ids,
|
|
};
|
|
|
|
module_i2c_driver(tda998x_driver);
|
|
|
|
MODULE_AUTHOR("Rob Clark <robdclark@gmail.com");
|
|
MODULE_DESCRIPTION("NXP Semiconductors TDA998X HDMI Encoder");
|
|
MODULE_LICENSE("GPL");
|