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576 lines
15 KiB
576 lines
15 KiB
// SPDX-License-Identifier: GPL-2.0-only
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/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
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*/
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#include <linux/slab.h>
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#include <linux/mutex.h>
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#include <linux/mfd/wcd9xxx/wcd9xxx_registers.h>
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#include <asoc/wcd9xxx-slimslave.h>
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struct wcd9xxx_slim_sch {
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u16 rx_port_ch_reg_base;
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u16 port_tx_cfg_reg_base;
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u16 port_rx_cfg_reg_base;
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};
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static struct wcd9xxx_slim_sch sh_ch;
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static int wcd9xxx_alloc_slim_sh_ch(struct wcd9xxx *wcd9xxx,
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u8 wcd9xxx_pgd_la, u32 cnt,
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struct wcd9xxx_ch *channels, u32 path);
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static int wcd9xxx_dealloc_slim_sh_ch(struct slim_device *slim,
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u32 cnt, struct wcd9xxx_ch *channels);
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static int wcd9xxx_configure_ports(struct wcd9xxx *wcd9xxx)
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{
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if (wcd9xxx->codec_type->slim_slave_type ==
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WCD9XXX_SLIM_SLAVE_ADDR_TYPE_0) {
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sh_ch.rx_port_ch_reg_base = 0x180;
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sh_ch.port_rx_cfg_reg_base = 0x040;
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sh_ch.port_tx_cfg_reg_base = 0x040;
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} else {
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sh_ch.rx_port_ch_reg_base =
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0x180 - (TAIKO_SB_PGD_OFFSET_OF_RX_SLAVE_DEV_PORTS * 4);
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sh_ch.port_rx_cfg_reg_base =
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0x040 - TAIKO_SB_PGD_OFFSET_OF_RX_SLAVE_DEV_PORTS;
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sh_ch.port_tx_cfg_reg_base = 0x050;
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}
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return 0;
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}
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/**
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* wcd9xxx_init_slimslave
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*
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* @wcd9xxx: pointer to wcd9xxx struct
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* @wcd9xxx_pgd_la: pgd_la value
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* @tx_num: tx number
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* @rx_num: rx number
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* @tx_slot: pointer to tx slot
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* @rx_slot: pointer to rx slot
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*
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* Returns 0 on success, appropriate error code otherwise
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*/
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int wcd9xxx_init_slimslave(struct wcd9xxx *wcd9xxx, u8 wcd9xxx_pgd_la,
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unsigned int tx_num, unsigned int *tx_slot,
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unsigned int rx_num, unsigned int *rx_slot)
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{
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int ret = 0;
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int i;
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ret = wcd9xxx_configure_ports(wcd9xxx);
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if (ret) {
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pr_err("%s: Failed to configure register address offset\n",
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__func__);
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goto err;
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}
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if (!rx_num || rx_num > wcd9xxx->num_rx_port) {
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pr_err("%s: invalid rx num %d\n", __func__, rx_num);
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return -EINVAL;
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}
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if (wcd9xxx->rx_chs) {
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wcd9xxx->num_rx_port = rx_num;
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for (i = 0; i < rx_num; i++) {
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wcd9xxx->rx_chs[i].ch_num = rx_slot[i];
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INIT_LIST_HEAD(&wcd9xxx->rx_chs[i].list);
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}
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ret = wcd9xxx_alloc_slim_sh_ch(wcd9xxx, wcd9xxx_pgd_la,
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wcd9xxx->num_rx_port,
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wcd9xxx->rx_chs,
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SLIM_SINK);
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if (ret) {
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pr_err("%s: Failed to alloc %d rx slimbus channels\n",
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__func__, wcd9xxx->num_rx_port);
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kfree(wcd9xxx->rx_chs);
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wcd9xxx->rx_chs = NULL;
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wcd9xxx->num_rx_port = 0;
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}
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} else {
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pr_err("Not able to allocate memory for %d slimbus rx ports\n",
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wcd9xxx->num_rx_port);
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}
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if (!tx_num || tx_num > wcd9xxx->num_tx_port) {
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pr_err("%s: invalid tx num %d\n", __func__, tx_num);
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return -EINVAL;
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}
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if (wcd9xxx->tx_chs) {
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wcd9xxx->num_tx_port = tx_num;
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for (i = 0; i < tx_num; i++) {
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wcd9xxx->tx_chs[i].ch_num = tx_slot[i];
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INIT_LIST_HEAD(&wcd9xxx->tx_chs[i].list);
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}
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ret = wcd9xxx_alloc_slim_sh_ch(wcd9xxx, wcd9xxx_pgd_la,
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wcd9xxx->num_tx_port,
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wcd9xxx->tx_chs,
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SLIM_SRC);
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if (ret) {
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pr_err("%s: Failed to alloc %d tx slimbus channels\n",
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__func__, wcd9xxx->num_tx_port);
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kfree(wcd9xxx->tx_chs);
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wcd9xxx->tx_chs = NULL;
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wcd9xxx->num_tx_port = 0;
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}
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} else {
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pr_err("Not able to allocate memory for %d slimbus tx ports\n",
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wcd9xxx->num_tx_port);
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}
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return 0;
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err:
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return ret;
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}
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EXPORT_SYMBOL(wcd9xxx_init_slimslave);
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int wcd9xxx_deinit_slimslave(struct wcd9xxx *wcd9xxx)
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{
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if (wcd9xxx->num_rx_port) {
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wcd9xxx_dealloc_slim_sh_ch(wcd9xxx->slim,
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wcd9xxx->num_rx_port,
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wcd9xxx->rx_chs);
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wcd9xxx->num_rx_port = 0;
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}
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if (wcd9xxx->num_tx_port) {
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wcd9xxx_dealloc_slim_sh_ch(wcd9xxx->slim,
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wcd9xxx->num_tx_port,
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wcd9xxx->tx_chs);
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wcd9xxx->num_tx_port = 0;
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}
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return 0;
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}
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static int wcd9xxx_alloc_slim_sh_ch(struct wcd9xxx *wcd9xxx,
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u8 wcd9xxx_pgd_la, u32 cnt,
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struct wcd9xxx_ch *channels, u32 path)
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{
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int ret = 0;
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u32 ch_idx;
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/* The slimbus channel allocation seem take longer time
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* so do the allocation up front to avoid delay in start of
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* playback
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*/
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pr_debug("%s: pgd_la[%d]\n", __func__, wcd9xxx_pgd_la);
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for (ch_idx = 0; ch_idx < cnt; ch_idx++) {
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ret = slim_get_slaveport(wcd9xxx_pgd_la,
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channels[ch_idx].port,
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&channels[ch_idx].sph, path);
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pr_debug("%s: pgd_la[%d] channels[%d].port[%d]\n"
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"channels[%d].sph[%d] path[%d]\n",
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__func__, wcd9xxx_pgd_la, ch_idx,
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channels[ch_idx].port,
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ch_idx, channels[ch_idx].sph, path);
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if (ret < 0) {
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pr_err("%s: slave port failure id[%d] ret[%d]\n",
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__func__, channels[ch_idx].ch_num, ret);
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goto err;
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}
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ret = slim_query_ch(wcd9xxx->slim,
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channels[ch_idx].ch_num,
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&channels[ch_idx].ch_h);
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if (ret < 0) {
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pr_err("%s: slim_query_ch failed ch-num[%d] ret[%d]\n",
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__func__, channels[ch_idx].ch_num, ret);
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goto err;
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}
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}
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err:
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return ret;
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}
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static int wcd9xxx_dealloc_slim_sh_ch(struct slim_device *slim,
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u32 cnt, struct wcd9xxx_ch *channels)
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{
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int idx = 0;
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int ret = 0;
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/* slim_dealloc_ch */
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for (idx = 0; idx < cnt; idx++) {
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ret = slim_dealloc_ch(slim, channels[idx].ch_h);
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if (ret < 0) {
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pr_err("%s: slim_dealloc_ch fail ret[%d] ch_h[%d]\n",
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__func__, ret, channels[idx].ch_h);
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}
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}
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return ret;
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}
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/* Enable slimbus slave device for RX path */
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int wcd9xxx_cfg_slim_sch_rx(struct wcd9xxx *wcd9xxx,
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struct list_head *wcd9xxx_ch_list,
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unsigned int rate, unsigned int bit_width,
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u16 *grph)
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{
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u8 ch_cnt = 0;
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u16 ch_h[SLIM_MAX_RX_PORTS] = {0};
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u8 payload = 0;
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u16 codec_port = 0;
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int ret;
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struct slim_ch prop;
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struct wcd9xxx_ch *rx;
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int size = ARRAY_SIZE(ch_h);
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/* Configure slave interface device */
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list_for_each_entry(rx, wcd9xxx_ch_list, list) {
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payload |= 1 << rx->shift;
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if (ch_cnt < size) {
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ch_h[ch_cnt] = rx->ch_h;
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ch_cnt++;
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pr_debug("list ch->ch_h %d ch->sph %d\n",
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rx->ch_h, rx->sph);
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} else {
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pr_err("%s: allocated channel number %u is out of max rangae %d\n",
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__func__, ch_cnt,
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size);
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ret = EINVAL;
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goto err;
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}
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}
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pr_debug("%s: ch_cnt[%d] rate=%d WATER_MARK_VAL %d\n",
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__func__, ch_cnt, rate, WATER_MARK_VAL);
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/* slim_define_ch api */
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prop.prot = SLIM_AUTO_ISO;
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if ((rate == 44100) || (rate == 88200) || (rate == 176400) ||
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(rate == 352800)) {
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prop.baser = SLIM_RATE_11025HZ;
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prop.ratem = (rate/11025);
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} else {
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prop.baser = SLIM_RATE_4000HZ;
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prop.ratem = (rate/4000);
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}
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prop.dataf = SLIM_CH_DATAF_NOT_DEFINED;
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prop.auxf = SLIM_CH_AUXF_NOT_APPLICABLE;
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prop.sampleszbits = bit_width;
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pr_debug("Before slim_define_ch:\n"
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"ch_cnt %d,ch_h[0] %d ch_h[1] %d, grph %d\n",
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ch_cnt, ch_h[0], ch_h[1], *grph);
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ret = slim_define_ch(wcd9xxx->slim, &prop, ch_h, ch_cnt,
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true, grph);
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if (ret < 0) {
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pr_err("%s: slim_define_ch failed ret[%d]\n",
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__func__, ret);
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goto err;
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}
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list_for_each_entry(rx, wcd9xxx_ch_list, list) {
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codec_port = rx->port;
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pr_debug("%s: codec_port %d rx 0x%p, payload %d\n"
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"sh_ch.rx_port_ch_reg_base0 0x%x\n"
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"sh_ch.port_rx_cfg_reg_base 0x%x\n",
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__func__, codec_port, rx, payload,
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sh_ch.rx_port_ch_reg_base,
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sh_ch.port_rx_cfg_reg_base);
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/* look for the valid port range and chose the
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* payload accordingly
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*/
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/* write to interface device */
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ret = wcd9xxx_interface_reg_write(wcd9xxx,
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SB_PGD_RX_PORT_MULTI_CHANNEL_0(
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sh_ch.rx_port_ch_reg_base, codec_port),
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payload);
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if (ret < 0) {
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pr_err("%s:Intf-dev fail reg[%d] payload[%d] ret[%d]\n",
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__func__,
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SB_PGD_RX_PORT_MULTI_CHANNEL_0(
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sh_ch.rx_port_ch_reg_base, codec_port),
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payload, ret);
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goto err;
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}
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/* configure the slave port for water mark and enable*/
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ret = wcd9xxx_interface_reg_write(wcd9xxx,
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SB_PGD_PORT_CFG_BYTE_ADDR(
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sh_ch.port_rx_cfg_reg_base, codec_port),
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WATER_MARK_VAL);
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if (ret < 0) {
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pr_err("%s:watermark set failure for port[%d] ret[%d]",
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__func__, codec_port, ret);
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}
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ret = slim_connect_sink(wcd9xxx->slim, &rx->sph, 1, rx->ch_h);
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if (ret < 0) {
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pr_err("%s: slim_connect_sink failed ret[%d]\n",
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__func__, ret);
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goto err_close_slim_sch;
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}
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}
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/* slim_control_ch */
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ret = slim_control_ch(wcd9xxx->slim, *grph, SLIM_CH_ACTIVATE,
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true);
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if (ret < 0) {
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pr_err("%s: slim_control_ch failed ret[%d]\n",
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__func__, ret);
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goto err_close_slim_sch;
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}
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return 0;
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err_close_slim_sch:
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/* release all acquired handles */
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wcd9xxx_close_slim_sch_rx(wcd9xxx, wcd9xxx_ch_list, *grph);
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err:
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return ret;
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}
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EXPORT_SYMBOL(wcd9xxx_cfg_slim_sch_rx);
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/* Enable slimbus slave device for RX path */
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int wcd9xxx_cfg_slim_sch_tx(struct wcd9xxx *wcd9xxx,
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struct list_head *wcd9xxx_ch_list,
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unsigned int rate, unsigned int bit_width,
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u16 *grph)
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{
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u16 ch_cnt = 0;
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u16 payload = 0;
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u16 ch_h[SLIM_MAX_TX_PORTS] = {0};
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u16 codec_port;
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int ret = 0;
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struct wcd9xxx_ch *tx;
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int size = ARRAY_SIZE(ch_h);
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struct slim_ch prop;
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list_for_each_entry(tx, wcd9xxx_ch_list, list) {
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payload |= 1 << tx->shift;
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if (ch_cnt < size) {
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ch_h[ch_cnt] = tx->ch_h;
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ch_cnt++;
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} else {
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pr_err("%s: allocated channel number %u is out of max rangae %d\n",
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__func__, ch_cnt,
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size);
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ret = EINVAL;
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goto err;
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}
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}
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/* slim_define_ch api */
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prop.prot = SLIM_AUTO_ISO;
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prop.baser = SLIM_RATE_4000HZ;
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prop.dataf = SLIM_CH_DATAF_NOT_DEFINED;
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prop.auxf = SLIM_CH_AUXF_NOT_APPLICABLE;
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prop.ratem = (rate/4000);
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prop.sampleszbits = bit_width;
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ret = slim_define_ch(wcd9xxx->slim, &prop, ch_h, ch_cnt,
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true, grph);
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if (ret < 0) {
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pr_err("%s: slim_define_ch failed ret[%d]\n",
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__func__, ret);
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goto err;
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}
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pr_debug("%s: ch_cnt[%d] rate[%d] bitwidth[%u]\n", __func__, ch_cnt,
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rate, bit_width);
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list_for_each_entry(tx, wcd9xxx_ch_list, list) {
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codec_port = tx->port;
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pr_debug("%s: codec_port %d tx 0x%p, payload 0x%x\n",
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__func__, codec_port, tx, payload);
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/* write to interface device */
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ret = wcd9xxx_interface_reg_write(wcd9xxx,
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SB_PGD_TX_PORT_MULTI_CHANNEL_0(codec_port),
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payload & 0x00FF);
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if (ret < 0) {
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pr_err("%s:Intf-dev fail reg[%d] payload[%d] ret[%d]\n",
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__func__,
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SB_PGD_TX_PORT_MULTI_CHANNEL_0(codec_port),
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payload, ret);
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goto err;
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}
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/* ports 8,9 */
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ret = wcd9xxx_interface_reg_write(wcd9xxx,
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SB_PGD_TX_PORT_MULTI_CHANNEL_1(codec_port),
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(payload & 0xFF00)>>8);
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if (ret < 0) {
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pr_err("%s:Intf-dev fail reg[%d] payload[%d] ret[%d]\n",
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__func__,
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SB_PGD_TX_PORT_MULTI_CHANNEL_1(codec_port),
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payload, ret);
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goto err;
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}
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/* configure the slave port for water mark and enable*/
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ret = wcd9xxx_interface_reg_write(wcd9xxx,
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SB_PGD_PORT_CFG_BYTE_ADDR(
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sh_ch.port_tx_cfg_reg_base, codec_port),
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WATER_MARK_VAL);
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if (ret < 0) {
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pr_err("%s:watermark set failure for port[%d] ret[%d]",
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__func__, codec_port, ret);
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}
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ret = slim_connect_src(wcd9xxx->slim, tx->sph, tx->ch_h);
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if (ret < 0) {
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pr_err("%s: slim_connect_src failed ret[%d]\n",
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__func__, ret);
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goto err;
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}
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}
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/* slim_control_ch */
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ret = slim_control_ch(wcd9xxx->slim, *grph, SLIM_CH_ACTIVATE,
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true);
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if (ret < 0) {
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pr_err("%s: slim_control_ch failed ret[%d]\n",
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__func__, ret);
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goto err;
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}
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return 0;
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err:
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/* release all acquired handles */
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wcd9xxx_close_slim_sch_tx(wcd9xxx, wcd9xxx_ch_list, *grph);
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return ret;
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}
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EXPORT_SYMBOL(wcd9xxx_cfg_slim_sch_tx);
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int wcd9xxx_close_slim_sch_rx(struct wcd9xxx *wcd9xxx,
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struct list_head *wcd9xxx_ch_list, u16 grph)
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{
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u32 sph[SLIM_MAX_RX_PORTS] = {0};
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int ch_cnt = 0;
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int ret = 0;
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struct wcd9xxx_ch *rx;
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list_for_each_entry(rx, wcd9xxx_ch_list, list)
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sph[ch_cnt++] = rx->sph;
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pr_debug("%s ch_cht %d, sph[0] %d sph[1] %d\n", __func__, ch_cnt,
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sph[0], sph[1]);
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/* slim_control_ch (REMOVE) */
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pr_debug("%s before slim_control_ch grph %d\n", __func__, grph);
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ret = slim_control_ch(wcd9xxx->slim, grph, SLIM_CH_REMOVE, true);
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if (ret < 0) {
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pr_err("%s: slim_control_ch failed ret[%d]\n", __func__, ret);
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goto err;
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}
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err:
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return ret;
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}
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EXPORT_SYMBOL(wcd9xxx_close_slim_sch_rx);
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|
int wcd9xxx_close_slim_sch_tx(struct wcd9xxx *wcd9xxx,
|
|
struct list_head *wcd9xxx_ch_list,
|
|
u16 grph)
|
|
{
|
|
u32 sph[SLIM_MAX_TX_PORTS] = {0};
|
|
int ret = 0;
|
|
int ch_cnt = 0;
|
|
struct wcd9xxx_ch *tx;
|
|
|
|
pr_debug("%s\n", __func__);
|
|
list_for_each_entry(tx, wcd9xxx_ch_list, list)
|
|
sph[ch_cnt++] = tx->sph;
|
|
|
|
pr_debug("%s ch_cht %d, sph[0] %d sph[1] %d\n",
|
|
__func__, ch_cnt, sph[0], sph[1]);
|
|
/* slim_control_ch (REMOVE) */
|
|
ret = slim_control_ch(wcd9xxx->slim, grph, SLIM_CH_REMOVE, true);
|
|
if (ret < 0) {
|
|
pr_err("%s: slim_control_ch failed ret[%d]\n",
|
|
__func__, ret);
|
|
goto err;
|
|
}
|
|
err:
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(wcd9xxx_close_slim_sch_tx);
|
|
|
|
int wcd9xxx_get_slave_port(unsigned int ch_num)
|
|
{
|
|
int ret = 0;
|
|
|
|
ret = (ch_num - BASE_CH_NUM);
|
|
pr_debug("%s: ch_num[%d] slave port[%d]\n", __func__, ch_num, ret);
|
|
if (ret < 0) {
|
|
pr_err("%s: Error:- Invalid slave port found = %d\n",
|
|
__func__, ret);
|
|
return -EINVAL;
|
|
}
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(wcd9xxx_get_slave_port);
|
|
|
|
int wcd9xxx_disconnect_port(struct wcd9xxx *wcd9xxx,
|
|
struct list_head *wcd9xxx_ch_list, u16 grph)
|
|
{
|
|
u32 sph[SLIM_MAX_TX_PORTS + SLIM_MAX_RX_PORTS] = {0};
|
|
int ch_cnt = 0;
|
|
int ret = 0;
|
|
struct wcd9xxx_ch *slim_ch;
|
|
|
|
list_for_each_entry(slim_ch, wcd9xxx_ch_list, list)
|
|
sph[ch_cnt++] = slim_ch->sph;
|
|
|
|
/* slim_disconnect_port */
|
|
ret = slim_disconnect_ports(wcd9xxx->slim, sph, ch_cnt);
|
|
if (ret < 0) {
|
|
pr_err("%s: slim_disconnect_ports failed ret[%d]\n",
|
|
__func__, ret);
|
|
}
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(wcd9xxx_disconnect_port);
|
|
|
|
/* This function is called with mutex acquired */
|
|
int wcd9xxx_rx_vport_validation(u32 port_id,
|
|
struct list_head *codec_dai_list)
|
|
{
|
|
struct wcd9xxx_ch *ch;
|
|
int ret = 0;
|
|
|
|
pr_debug("%s: port_id %u\n", __func__, port_id);
|
|
|
|
list_for_each_entry(ch,
|
|
codec_dai_list, list) {
|
|
pr_debug("%s: ch->port %u\n", __func__, ch->port);
|
|
if (ch->port == port_id) {
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(wcd9xxx_rx_vport_validation);
|
|
|
|
|
|
/* This function is called with mutex acquired */
|
|
int wcd9xxx_tx_vport_validation(u32 table, u32 port_id,
|
|
struct wcd9xxx_codec_dai_data *codec_dai,
|
|
u32 num_codec_dais)
|
|
{
|
|
struct wcd9xxx_ch *ch;
|
|
int ret = 0;
|
|
u32 index;
|
|
unsigned long vtable = table;
|
|
u32 size = sizeof(table) * BITS_PER_BYTE;
|
|
|
|
pr_debug("%s: vtable 0x%lx port_id %u size %d\n", __func__,
|
|
vtable, port_id, size);
|
|
for_each_set_bit(index, &vtable, size) {
|
|
if (index < num_codec_dais) {
|
|
list_for_each_entry(ch,
|
|
&codec_dai[index].wcd9xxx_ch_list,
|
|
list) {
|
|
pr_debug("%s: index %u ch->port %u vtable 0x%lx\n",
|
|
__func__, index, ch->port,
|
|
vtable);
|
|
if (ch->port == port_id) {
|
|
pr_err("%s: TX%u is used by AIF%u_CAP Mixer\n",
|
|
__func__, port_id + 1,
|
|
(index + 1)/2);
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
pr_err("%s: Invalid index %d of codec dai",
|
|
__func__, index);
|
|
ret = -EINVAL;
|
|
}
|
|
if (ret)
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(wcd9xxx_tx_vport_validation);
|
|
|