1*5113495bSYour Name /*
2*5113495bSYour Name * Copyright (c) 2013-2020 The Linux Foundation. All rights reserved.
3*5113495bSYour Name * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
4*5113495bSYour Name *
5*5113495bSYour Name * Permission to use, copy, modify, and/or distribute this software for
6*5113495bSYour Name * any purpose with or without fee is hereby granted, provided that the
7*5113495bSYour Name * above copyright notice and this permission notice appear in all
8*5113495bSYour Name * copies.
9*5113495bSYour Name *
10*5113495bSYour Name * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11*5113495bSYour Name * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12*5113495bSYour Name * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13*5113495bSYour Name * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14*5113495bSYour Name * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15*5113495bSYour Name * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16*5113495bSYour Name * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17*5113495bSYour Name * PERFORMANCE OF THIS SOFTWARE.
18*5113495bSYour Name */
19*5113495bSYour Name
20*5113495bSYour Name #include <qdf_types.h>
21*5113495bSYour Name #include <qdf_status.h>
22*5113495bSYour Name #include <qdf_timer.h>
23*5113495bSYour Name #include <qdf_time.h>
24*5113495bSYour Name #include <qdf_lock.h>
25*5113495bSYour Name #include <qdf_mem.h>
26*5113495bSYour Name #include <qdf_util.h>
27*5113495bSYour Name #include <qdf_defer.h>
28*5113495bSYour Name #include <qdf_atomic.h>
29*5113495bSYour Name #include <qdf_nbuf.h>
30*5113495bSYour Name #include <athdefs.h>
31*5113495bSYour Name #include "qdf_net_types.h"
32*5113495bSYour Name #include "a_types.h"
33*5113495bSYour Name #include "athdefs.h"
34*5113495bSYour Name #include "a_osapi.h"
35*5113495bSYour Name #include <hif.h>
36*5113495bSYour Name #include <htc_services.h>
37*5113495bSYour Name #include <a_debug.h>
38*5113495bSYour Name #include "hif_sdio_dev.h"
39*5113495bSYour Name #include "if_sdio.h"
40*5113495bSYour Name #include "regtable_sdio.h"
41*5113495bSYour Name #include <transfer/transfer.h>
42*5113495bSYour Name
43*5113495bSYour Name #define ATH_MODULE_NAME hif_sdio
44*5113495bSYour Name
45*5113495bSYour Name /**
46*5113495bSYour Name * hif_start() - start hif bus interface.
47*5113495bSYour Name * @hif_ctx: HIF context
48*5113495bSYour Name *
49*5113495bSYour Name * Enables hif device interrupts
50*5113495bSYour Name *
51*5113495bSYour Name * Return: QDF_STATUS
52*5113495bSYour Name */
hif_start(struct hif_opaque_softc * hif_ctx)53*5113495bSYour Name QDF_STATUS hif_start(struct hif_opaque_softc *hif_ctx)
54*5113495bSYour Name {
55*5113495bSYour Name struct hif_sdio_softc *scn = HIF_GET_SDIO_SOFTC(hif_ctx);
56*5113495bSYour Name struct hif_sdio_dev *hif_device = scn->hif_handle;
57*5113495bSYour Name struct hif_sdio_device *htc_sdio_device = hif_dev_from_hif(hif_device);
58*5113495bSYour Name struct hif_softc *hif_sc = HIF_GET_SOFTC(hif_ctx);
59*5113495bSYour Name int ret = 0;
60*5113495bSYour Name
61*5113495bSYour Name HIF_ENTER();
62*5113495bSYour Name ret = hif_sdio_bus_configure(hif_sc);
63*5113495bSYour Name if (ret) {
64*5113495bSYour Name hif_err("hif_sdio_bus_configure failed");
65*5113495bSYour Name return QDF_STATUS_E_FAILURE;
66*5113495bSYour Name }
67*5113495bSYour Name
68*5113495bSYour Name hif_dev_enable_interrupts(htc_sdio_device);
69*5113495bSYour Name HIF_EXIT();
70*5113495bSYour Name return QDF_STATUS_SUCCESS;
71*5113495bSYour Name }
72*5113495bSYour Name
73*5113495bSYour Name /**
74*5113495bSYour Name * hif_flush_surprise_remove() - remove hif bus interface.
75*5113495bSYour Name * @hif_ctx: HIF context
76*5113495bSYour Name *
77*5113495bSYour Name *
78*5113495bSYour Name * Return: none
79*5113495bSYour Name */
hif_flush_surprise_remove(struct hif_opaque_softc * hif_ctx)80*5113495bSYour Name void hif_flush_surprise_remove(struct hif_opaque_softc *hif_ctx)
81*5113495bSYour Name {
82*5113495bSYour Name
83*5113495bSYour Name }
84*5113495bSYour Name
85*5113495bSYour Name /**
86*5113495bSYour Name * hif_sdio_stop() - stop hif bus interface.
87*5113495bSYour Name * @hif_ctx: HIF context
88*5113495bSYour Name *
89*5113495bSYour Name * Disable hif device interrupts and destroy hif context
90*5113495bSYour Name *
91*5113495bSYour Name * Return: none
92*5113495bSYour Name */
hif_sdio_stop(struct hif_softc * hif_ctx)93*5113495bSYour Name void hif_sdio_stop(struct hif_softc *hif_ctx)
94*5113495bSYour Name {
95*5113495bSYour Name struct hif_sdio_softc *scn = HIF_GET_SDIO_SOFTC(hif_ctx);
96*5113495bSYour Name struct hif_sdio_dev *hif_device = scn->hif_handle;
97*5113495bSYour Name struct hif_sdio_device *htc_sdio_device = hif_dev_from_hif(hif_device);
98*5113495bSYour Name
99*5113495bSYour Name HIF_ENTER();
100*5113495bSYour Name if (htc_sdio_device) {
101*5113495bSYour Name hif_dev_disable_interrupts(htc_sdio_device);
102*5113495bSYour Name hif_dev_destroy(htc_sdio_device);
103*5113495bSYour Name }
104*5113495bSYour Name HIF_EXIT();
105*5113495bSYour Name }
106*5113495bSYour Name
107*5113495bSYour Name /**
108*5113495bSYour Name * hif_send_head() - send data on hif bus interface.
109*5113495bSYour Name * @hif_ctx: HIF context
110*5113495bSYour Name * @pipe:
111*5113495bSYour Name * @transfer_id:
112*5113495bSYour Name * @nbytes:
113*5113495bSYour Name * @buf:
114*5113495bSYour Name * @data_attr:
115*5113495bSYour Name *
116*5113495bSYour Name * send tx data on a given pipe id
117*5113495bSYour Name *
118*5113495bSYour Name * Return: QDF_STATUS
119*5113495bSYour Name */
hif_send_head(struct hif_opaque_softc * hif_ctx,uint8_t pipe,uint32_t transfer_id,uint32_t nbytes,qdf_nbuf_t buf,uint32_t data_attr)120*5113495bSYour Name QDF_STATUS hif_send_head(struct hif_opaque_softc *hif_ctx, uint8_t pipe,
121*5113495bSYour Name uint32_t transfer_id, uint32_t nbytes, qdf_nbuf_t buf,
122*5113495bSYour Name uint32_t data_attr)
123*5113495bSYour Name {
124*5113495bSYour Name struct hif_sdio_softc *scn = HIF_GET_SDIO_SOFTC(hif_ctx);
125*5113495bSYour Name struct hif_sdio_dev *hif_device = scn->hif_handle;
126*5113495bSYour Name struct hif_sdio_device *htc_sdio_device = hif_dev_from_hif(hif_device);
127*5113495bSYour Name
128*5113495bSYour Name return hif_dev_send_buffer(htc_sdio_device,
129*5113495bSYour Name transfer_id, pipe,
130*5113495bSYour Name nbytes, buf);
131*5113495bSYour Name }
132*5113495bSYour Name
133*5113495bSYour Name /**
134*5113495bSYour Name * hif_map_service_to_pipe() - maps ul/dl pipe to service id.
135*5113495bSYour Name * @hif_hdl: HIF hdl
136*5113495bSYour Name * @service_id: service index
137*5113495bSYour Name * @ul_pipe: uplink pipe id
138*5113495bSYour Name * @dl_pipe: down-linklink pipe id
139*5113495bSYour Name * @ul_is_polled: if ul is polling based
140*5113495bSYour Name * @dl_is_polled: if dl is polling based
141*5113495bSYour Name *
142*5113495bSYour Name * Return: int
143*5113495bSYour Name */
hif_map_service_to_pipe(struct hif_opaque_softc * hif_hdl,uint16_t service_id,uint8_t * ul_pipe,uint8_t * dl_pipe,int * ul_is_polled,int * dl_is_polled)144*5113495bSYour Name int hif_map_service_to_pipe(struct hif_opaque_softc *hif_hdl,
145*5113495bSYour Name uint16_t service_id, uint8_t *ul_pipe,
146*5113495bSYour Name uint8_t *dl_pipe, int *ul_is_polled,
147*5113495bSYour Name int *dl_is_polled)
148*5113495bSYour Name {
149*5113495bSYour Name struct hif_sdio_softc *scn = HIF_GET_SDIO_SOFTC(hif_hdl);
150*5113495bSYour Name struct hif_sdio_dev *hif_device = scn->hif_handle;
151*5113495bSYour Name QDF_STATUS status;
152*5113495bSYour Name
153*5113495bSYour Name status = hif_dev_map_service_to_pipe(hif_device,
154*5113495bSYour Name service_id, ul_pipe, dl_pipe);
155*5113495bSYour Name return qdf_status_to_os_return(status);
156*5113495bSYour Name }
157*5113495bSYour Name
158*5113495bSYour Name /**
159*5113495bSYour Name * hif_get_default_pipe() - get default pipe
160*5113495bSYour Name * @scn: HIF context
161*5113495bSYour Name * @ul_pipe: uplink pipe id
162*5113495bSYour Name * @dl_pipe: down-linklink pipe id
163*5113495bSYour Name */
hif_get_default_pipe(struct hif_opaque_softc * scn,uint8_t * ul_pipe,uint8_t * dl_pipe)164*5113495bSYour Name void hif_get_default_pipe(struct hif_opaque_softc *scn, uint8_t *ul_pipe,
165*5113495bSYour Name uint8_t *dl_pipe)
166*5113495bSYour Name {
167*5113495bSYour Name hif_map_service_to_pipe(scn, HTC_CTRL_RSVD_SVC,
168*5113495bSYour Name ul_pipe, dl_pipe, NULL, NULL);
169*5113495bSYour Name }
170*5113495bSYour Name
171*5113495bSYour Name /**
172*5113495bSYour Name * hif_post_init() - create hif device after probe.
173*5113495bSYour Name * @hif_ctx: HIF context
174*5113495bSYour Name * @target: HIF target
175*5113495bSYour Name * @callbacks: htc callbacks
176*5113495bSYour Name *
177*5113495bSYour Name *
178*5113495bSYour Name * Return: int
179*5113495bSYour Name */
hif_post_init(struct hif_opaque_softc * hif_ctx,void * target,struct hif_msg_callbacks * callbacks)180*5113495bSYour Name void hif_post_init(struct hif_opaque_softc *hif_ctx, void *target,
181*5113495bSYour Name struct hif_msg_callbacks *callbacks)
182*5113495bSYour Name {
183*5113495bSYour Name struct hif_sdio_softc *scn = HIF_GET_SDIO_SOFTC(hif_ctx);
184*5113495bSYour Name struct hif_sdio_dev *hif_device = scn->hif_handle;
185*5113495bSYour Name struct hif_sdio_device *htc_sdio_device = hif_dev_from_hif(hif_device);
186*5113495bSYour Name
187*5113495bSYour Name HIF_ENTER();
188*5113495bSYour Name
189*5113495bSYour Name if (!htc_sdio_device)
190*5113495bSYour Name htc_sdio_device = hif_dev_create(hif_device, callbacks, target);
191*5113495bSYour Name
192*5113495bSYour Name if (htc_sdio_device)
193*5113495bSYour Name hif_dev_setup(htc_sdio_device);
194*5113495bSYour Name
195*5113495bSYour Name HIF_EXIT();
196*5113495bSYour Name }
197*5113495bSYour Name
198*5113495bSYour Name /**
199*5113495bSYour Name * hif_get_free_queue_number() - create hif device after probe.
200*5113495bSYour Name * @hif_ctx: HIF context
201*5113495bSYour Name * @pipe: pipe id
202*5113495bSYour Name *
203*5113495bSYour Name * SDIO uses credit based flow control at the HTC layer
204*5113495bSYour Name * so transmit resource checks are bypassed
205*5113495bSYour Name * Return: int
206*5113495bSYour Name */
hif_get_free_queue_number(struct hif_opaque_softc * hif_ctx,uint8_t pipe)207*5113495bSYour Name uint16_t hif_get_free_queue_number(struct hif_opaque_softc *hif_ctx,
208*5113495bSYour Name uint8_t pipe)
209*5113495bSYour Name {
210*5113495bSYour Name uint16_t rv;
211*5113495bSYour Name
212*5113495bSYour Name rv = 1;
213*5113495bSYour Name return rv;
214*5113495bSYour Name }
215*5113495bSYour Name
216*5113495bSYour Name /**
217*5113495bSYour Name * hif_send_complete_check() - check tx complete on a given pipe.
218*5113495bSYour Name * @hif_ctx: HIF context
219*5113495bSYour Name * @pipe: HIF target
220*5113495bSYour Name * @force: check if need to pool for completion
221*5113495bSYour Name * Decide whether to actually poll for completions, or just
222*5113495bSYour Name * wait for a later chance.
223*5113495bSYour Name *
224*5113495bSYour Name * Return: int
225*5113495bSYour Name */
hif_send_complete_check(struct hif_opaque_softc * hif_ctx,uint8_t pipe,int force)226*5113495bSYour Name void hif_send_complete_check(struct hif_opaque_softc *hif_ctx, uint8_t pipe,
227*5113495bSYour Name int force)
228*5113495bSYour Name {
229*5113495bSYour Name
230*5113495bSYour Name }
231*5113495bSYour Name
232