Lines Matching +full:bus +full:- +full:power
1 // SPDX-License-Identifier: GPL-2.0-only
3 * hdac-ext-controller.c - HD-audio extended controller functions.
5 * Copyright (C) 2014-2015 Intel Corp
18 * processing pipe helpers - these helpers are useful for dealing with HDA
23 * snd_hdac_ext_bus_ppcap_enable - enable/disable processing pipe capability
24 * @bus: the pointer to HDAC bus object
27 void snd_hdac_ext_bus_ppcap_enable(struct hdac_bus *bus, bool enable) in snd_hdac_ext_bus_ppcap_enable() argument
30 if (!bus->ppcap) { in snd_hdac_ext_bus_ppcap_enable()
31 dev_err(bus->dev, "Address of PP capability is NULL"); in snd_hdac_ext_bus_ppcap_enable()
36 snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, in snd_hdac_ext_bus_ppcap_enable()
39 snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, in snd_hdac_ext_bus_ppcap_enable()
45 * snd_hdac_ext_bus_ppcap_int_enable - ppcap interrupt enable/disable
46 * @bus: the pointer to HDAC bus object
49 void snd_hdac_ext_bus_ppcap_int_enable(struct hdac_bus *bus, bool enable) in snd_hdac_ext_bus_ppcap_int_enable() argument
52 if (!bus->ppcap) { in snd_hdac_ext_bus_ppcap_int_enable()
53 dev_err(bus->dev, "Address of PP capability is NULL\n"); in snd_hdac_ext_bus_ppcap_int_enable()
58 snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, in snd_hdac_ext_bus_ppcap_int_enable()
61 snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, in snd_hdac_ext_bus_ppcap_int_enable()
67 * Multilink helpers - these helpers are useful for dealing with HDA
72 * snd_hdac_ext_bus_get_ml_capabilities - get multilink capability
73 * @bus: the pointer to HDAC bus object
76 * in hlink_list of extended hdac bus
77 * Note: this will be freed on bus exit by driver
79 int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus) in snd_hdac_ext_bus_get_ml_capabilities() argument
85 link_count = readl(bus->mlcap + AZX_REG_ML_MLCD) + 1; in snd_hdac_ext_bus_get_ml_capabilities()
87 dev_dbg(bus->dev, "In %s Link count: %d\n", __func__, link_count); in snd_hdac_ext_bus_get_ml_capabilities()
92 return -ENOMEM; in snd_hdac_ext_bus_get_ml_capabilities()
93 hlink->index = idx; in snd_hdac_ext_bus_get_ml_capabilities()
94 hlink->bus = bus; in snd_hdac_ext_bus_get_ml_capabilities()
95 hlink->ml_addr = bus->mlcap + AZX_ML_BASE + in snd_hdac_ext_bus_get_ml_capabilities()
97 hlink->lcaps = readl(hlink->ml_addr + AZX_REG_ML_LCAP); in snd_hdac_ext_bus_get_ml_capabilities()
98 hlink->lsdiid = readw(hlink->ml_addr + AZX_REG_ML_LSDIID); in snd_hdac_ext_bus_get_ml_capabilities()
101 hlink->ref_count = 1; in snd_hdac_ext_bus_get_ml_capabilities()
103 list_add_tail(&hlink->list, &bus->hlink_list); in snd_hdac_ext_bus_get_ml_capabilities()
111 * snd_hdac_ext_link_free_all- free hdac extended link objects
113 * @bus: the pointer to HDAC bus object
116 void snd_hdac_ext_link_free_all(struct hdac_bus *bus) in snd_hdac_ext_link_free_all() argument
120 while (!list_empty(&bus->hlink_list)) { in snd_hdac_ext_link_free_all()
121 hlink = list_first_entry(&bus->hlink_list, struct hdac_ext_link, list); in snd_hdac_ext_link_free_all()
122 list_del(&hlink->list); in snd_hdac_ext_link_free_all()
129 * snd_hdac_ext_bus_get_hlink_by_addr - get hlink at specified address
130 * @bus: hlink's parent bus device
135 struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_addr(struct hdac_bus *bus, int addr) in snd_hdac_ext_bus_get_hlink_by_addr() argument
139 list_for_each_entry(hlink, &bus->hlink_list, list) in snd_hdac_ext_bus_get_hlink_by_addr()
140 if (hlink->lsdiid & (0x1 << addr)) in snd_hdac_ext_bus_get_hlink_by_addr()
147 * snd_hdac_ext_bus_get_hlink_by_name - get hlink based on codec name
148 * @bus: the pointer to HDAC bus object
151 struct hdac_ext_link *snd_hdac_ext_bus_get_hlink_by_name(struct hdac_bus *bus, in snd_hdac_ext_bus_get_hlink_by_name() argument
158 if (bus->idx != bus_idx) in snd_hdac_ext_bus_get_hlink_by_name()
163 return snd_hdac_ext_bus_get_hlink_by_addr(bus, addr); in snd_hdac_ext_bus_get_hlink_by_name()
177 val = readl(hlink->ml_addr + AZX_REG_ML_LCTL); in check_hdac_link_power_active()
186 } while (--timeout); in check_hdac_link_power_active()
188 return -EIO; in check_hdac_link_power_active()
192 * snd_hdac_ext_bus_link_power_up -power up hda link
193 * @hlink: HD-audio extended link
197 snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, in snd_hdac_ext_bus_link_power_up()
205 * snd_hdac_ext_bus_link_power_down -power down hda link
206 * @hlink: HD-audio extended link
210 snd_hdac_updatel(hlink->ml_addr, AZX_REG_ML_LCTL, AZX_ML_LCTL_SPA, 0); in snd_hdac_ext_bus_link_power_down()
217 * snd_hdac_ext_bus_link_power_up_all -power up all hda link
218 * @bus: the pointer to HDAC bus object
220 int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus) in snd_hdac_ext_bus_link_power_up_all() argument
225 list_for_each_entry(hlink, &bus->hlink_list, list) { in snd_hdac_ext_bus_link_power_up_all()
236 * snd_hdac_ext_bus_link_power_down_all -power down all hda link
237 * @bus: the pointer to HDAC bus object
239 int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus) in snd_hdac_ext_bus_link_power_down_all() argument
244 list_for_each_entry(hlink, &bus->hlink_list, list) { in snd_hdac_ext_bus_link_power_down_all()
255 * snd_hdac_ext_bus_link_set_stream_id - maps stream id to link output
256 * @link: HD-audio ext link to set up
262 snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 1 << stream); in snd_hdac_ext_bus_link_set_stream_id()
267 * snd_hdac_ext_bus_link_clear_stream_id - maps stream id to link output
268 * @link: HD-audio ext link to set up
274 snd_hdac_updatew(link->ml_addr, AZX_REG_ML_LOSIDV, (1 << stream), 0); in snd_hdac_ext_bus_link_clear_stream_id()
278 int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, in snd_hdac_ext_bus_link_get() argument
284 mutex_lock(&bus->lock); in snd_hdac_ext_bus_link_get()
287 * if we move from 0 to 1, count will be 1 so power up this link in snd_hdac_ext_bus_link_get()
290 if (++hlink->ref_count == 1) { in snd_hdac_ext_bus_link_get()
291 if (!bus->cmd_dma_state) { in snd_hdac_ext_bus_link_get()
292 snd_hdac_bus_init_cmd_io(bus); in snd_hdac_ext_bus_link_get()
293 bus->cmd_dma_state = true; in snd_hdac_ext_bus_link_get()
301 snd_hdac_updatew(hlink->ml_addr, AZX_REG_ML_LOSIDV, in snd_hdac_ext_bus_link_get()
305 * HDA spec section 4.3 - Codec Discovery in snd_hdac_ext_bus_link_get()
308 codec_mask = snd_hdac_chip_readw(bus, STATESTS); in snd_hdac_ext_bus_link_get()
309 dev_dbg(bus->dev, "codec_mask = 0x%lx\n", codec_mask); in snd_hdac_ext_bus_link_get()
310 snd_hdac_chip_writew(bus, STATESTS, codec_mask); in snd_hdac_ext_bus_link_get()
311 if (!bus->codec_mask) in snd_hdac_ext_bus_link_get()
312 bus->codec_mask = codec_mask; in snd_hdac_ext_bus_link_get()
315 mutex_unlock(&bus->lock); in snd_hdac_ext_bus_link_get()
320 int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, in snd_hdac_ext_bus_link_put() argument
327 mutex_lock(&bus->lock); in snd_hdac_ext_bus_link_put()
331 * so power down this link as well in snd_hdac_ext_bus_link_put()
333 if (--hlink->ref_count == 0) { in snd_hdac_ext_bus_link_put()
340 list_for_each_entry(hlink_tmp, &bus->hlink_list, list) { in snd_hdac_ext_bus_link_put()
341 if (hlink_tmp->ref_count) { in snd_hdac_ext_bus_link_put()
348 snd_hdac_bus_stop_cmd_io(bus); in snd_hdac_ext_bus_link_put()
349 bus->cmd_dma_state = false; in snd_hdac_ext_bus_link_put()
353 mutex_unlock(&bus->lock); in snd_hdac_ext_bus_link_put()
360 const char *devname = dev_name(&codec->dev); in hdac_ext_codec_link_up()
362 snd_hdac_ext_bus_get_hlink_by_name(codec->bus, devname); in hdac_ext_codec_link_up()
365 snd_hdac_ext_bus_link_get(codec->bus, hlink); in hdac_ext_codec_link_up()
370 const char *devname = dev_name(&codec->dev); in hdac_ext_codec_link_down()
372 snd_hdac_ext_bus_get_hlink_by_name(codec->bus, devname); in hdac_ext_codec_link_down()
375 snd_hdac_ext_bus_link_put(codec->bus, hlink); in hdac_ext_codec_link_down()
380 struct hdac_bus *bus = codec->bus; in snd_hdac_ext_bus_link_power() local
381 bool oldstate = test_bit(codec->addr, &bus->codec_powered); in snd_hdac_ext_bus_link_power()