diff options
author | Omar Ramirez Luna <omar.ramirez@ti.com> | 2010-06-23 09:01:58 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-06-23 18:39:07 -0400 |
commit | 7d55524d3039e3e70756ee0a45f2fe59b7ed3fd2 (patch) | |
tree | e104d6a35c6fbae2743749dff63de14b2dea8778 /drivers/staging/tidspbridge/rmgr/pwr.c | |
parent | c4ca3d5a4b02b484fdb1bab59489699b94998fad (diff) |
staging: ti dspbridge: add resource manager
Add TI's DSP Bridge resource manager driver sources
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
Signed-off-by: Kanigeri, Hari <h-kanigeri2@ti.com>
Signed-off-by: Ameya Palande <ameya.palande@nokia.com>
Signed-off-by: Guzman Lugo, Fernando <fernando.lugo@ti.com>
Signed-off-by: Hebbar, Shivananda <x0hebbar@ti.com>
Signed-off-by: Ramos Falcon, Ernesto <ernesto@ti.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Anna, Suman <s-anna@ti.com>
Signed-off-by: Gupta, Ramesh <grgupta@ti.com>
Signed-off-by: Gomez Castellanos, Ivan <ivan.gomez@ti.com>
Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Armando Uribe De Leon <x0095078@ti.com>
Signed-off-by: Deepak Chitriki <deepak.chitriki@ti.com>
Signed-off-by: Menon, Nishanth <nm@ti.com>
Signed-off-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/tidspbridge/rmgr/pwr.c')
-rw-r--r-- | drivers/staging/tidspbridge/rmgr/pwr.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/drivers/staging/tidspbridge/rmgr/pwr.c b/drivers/staging/tidspbridge/rmgr/pwr.c new file mode 100644 index 00000000000..ec6d18171f9 --- /dev/null +++ b/drivers/staging/tidspbridge/rmgr/pwr.c | |||
@@ -0,0 +1,182 @@ | |||
1 | /* | ||
2 | * pwr.c | ||
3 | * | ||
4 | * DSP-BIOS Bridge driver support functions for TI OMAP processors. | ||
5 | * | ||
6 | * PWR API for controlling DSP power states. | ||
7 | * | ||
8 | * Copyright (C) 2005-2006 Texas Instruments, Inc. | ||
9 | * | ||
10 | * This package is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License version 2 as | ||
12 | * published by the Free Software Foundation. | ||
13 | * | ||
14 | * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | ||
15 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | ||
16 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | ||
17 | */ | ||
18 | |||
19 | /* ----------------------------------- Host OS */ | ||
20 | #include <dspbridge/host_os.h> | ||
21 | |||
22 | /* ----------------------------------- This */ | ||
23 | #include <dspbridge/pwr.h> | ||
24 | |||
25 | /* ----------------------------------- Resource Manager */ | ||
26 | #include <dspbridge/devdefs.h> | ||
27 | #include <dspbridge/drv.h> | ||
28 | |||
29 | /* ----------------------------------- Platform Manager */ | ||
30 | #include <dspbridge/dev.h> | ||
31 | |||
32 | /* ----------------------------------- Link Driver */ | ||
33 | #include <dspbridge/dspioctl.h> | ||
34 | |||
35 | /* | ||
36 | * ======== pwr_sleep_dsp ======== | ||
37 | * Send command to DSP to enter sleep state. | ||
38 | */ | ||
39 | int pwr_sleep_dsp(IN CONST u32 sleepCode, IN CONST u32 timeout) | ||
40 | { | ||
41 | struct bridge_drv_interface *intf_fxns; | ||
42 | struct bridge_dev_context *dw_context; | ||
43 | int status = -EPERM; | ||
44 | struct dev_object *hdev_obj = NULL; | ||
45 | u32 ioctlcode = 0; | ||
46 | u32 arg = timeout; | ||
47 | |||
48 | for (hdev_obj = (struct dev_object *)drv_get_first_dev_object(); | ||
49 | hdev_obj != NULL; | ||
50 | hdev_obj = | ||
51 | (struct dev_object *)drv_get_next_dev_object((u32) hdev_obj)) { | ||
52 | if (DSP_FAILED(dev_get_bridge_context(hdev_obj, | ||
53 | (struct bridge_dev_context **) | ||
54 | &dw_context))) { | ||
55 | continue; | ||
56 | } | ||
57 | if (DSP_FAILED(dev_get_intf_fxns(hdev_obj, | ||
58 | (struct bridge_drv_interface **) | ||
59 | &intf_fxns))) { | ||
60 | continue; | ||
61 | } | ||
62 | if (sleepCode == PWR_DEEPSLEEP) | ||
63 | ioctlcode = BRDIOCTL_DEEPSLEEP; | ||
64 | else if (sleepCode == PWR_EMERGENCYDEEPSLEEP) | ||
65 | ioctlcode = BRDIOCTL_EMERGENCYSLEEP; | ||
66 | else | ||
67 | status = -EINVAL; | ||
68 | |||
69 | if (status != -EINVAL) { | ||
70 | status = (*intf_fxns->pfn_dev_cntrl) (dw_context, | ||
71 | ioctlcode, | ||
72 | (void *)&arg); | ||
73 | } | ||
74 | } | ||
75 | return status; | ||
76 | } | ||
77 | |||
78 | /* | ||
79 | * ======== pwr_wake_dsp ======== | ||
80 | * Send command to DSP to wake it from sleep. | ||
81 | */ | ||
82 | int pwr_wake_dsp(IN CONST u32 timeout) | ||
83 | { | ||
84 | struct bridge_drv_interface *intf_fxns; | ||
85 | struct bridge_dev_context *dw_context; | ||
86 | int status = -EPERM; | ||
87 | struct dev_object *hdev_obj = NULL; | ||
88 | u32 arg = timeout; | ||
89 | |||
90 | for (hdev_obj = (struct dev_object *)drv_get_first_dev_object(); | ||
91 | hdev_obj != NULL; | ||
92 | hdev_obj = (struct dev_object *)drv_get_next_dev_object | ||
93 | ((u32) hdev_obj)) { | ||
94 | if (DSP_SUCCEEDED(dev_get_bridge_context(hdev_obj, | ||
95 | (struct bridge_dev_context | ||
96 | **)&dw_context))) { | ||
97 | if (DSP_SUCCEEDED | ||
98 | (dev_get_intf_fxns | ||
99 | (hdev_obj, | ||
100 | (struct bridge_drv_interface **)&intf_fxns))) { | ||
101 | status = | ||
102 | (*intf_fxns->pfn_dev_cntrl) (dw_context, | ||
103 | BRDIOCTL_WAKEUP, | ||
104 | (void *)&arg); | ||
105 | } | ||
106 | } | ||
107 | } | ||
108 | return status; | ||
109 | } | ||
110 | |||
111 | /* | ||
112 | * ======== pwr_pm_pre_scale======== | ||
113 | * Sends pre-notification message to DSP. | ||
114 | */ | ||
115 | int pwr_pm_pre_scale(IN u16 voltage_domain, u32 level) | ||
116 | { | ||
117 | struct bridge_drv_interface *intf_fxns; | ||
118 | struct bridge_dev_context *dw_context; | ||
119 | int status = -EPERM; | ||
120 | struct dev_object *hdev_obj = NULL; | ||
121 | u32 arg[2]; | ||
122 | |||
123 | arg[0] = voltage_domain; | ||
124 | arg[1] = level; | ||
125 | |||
126 | for (hdev_obj = (struct dev_object *)drv_get_first_dev_object(); | ||
127 | hdev_obj != NULL; | ||
128 | hdev_obj = (struct dev_object *)drv_get_next_dev_object | ||
129 | ((u32) hdev_obj)) { | ||
130 | if (DSP_SUCCEEDED(dev_get_bridge_context(hdev_obj, | ||
131 | (struct bridge_dev_context | ||
132 | **)&dw_context))) { | ||
133 | if (DSP_SUCCEEDED | ||
134 | (dev_get_intf_fxns | ||
135 | (hdev_obj, | ||
136 | (struct bridge_drv_interface **)&intf_fxns))) { | ||
137 | status = | ||
138 | (*intf_fxns->pfn_dev_cntrl) (dw_context, | ||
139 | BRDIOCTL_PRESCALE_NOTIFY, | ||
140 | (void *)&arg); | ||
141 | } | ||
142 | } | ||
143 | } | ||
144 | return status; | ||
145 | } | ||
146 | |||
147 | /* | ||
148 | * ======== pwr_pm_post_scale======== | ||
149 | * Sends post-notification message to DSP. | ||
150 | */ | ||
151 | int pwr_pm_post_scale(IN u16 voltage_domain, u32 level) | ||
152 | { | ||
153 | struct bridge_drv_interface *intf_fxns; | ||
154 | struct bridge_dev_context *dw_context; | ||
155 | int status = -EPERM; | ||
156 | struct dev_object *hdev_obj = NULL; | ||
157 | u32 arg[2]; | ||
158 | |||
159 | arg[0] = voltage_domain; | ||
160 | arg[1] = level; | ||
161 | |||
162 | for (hdev_obj = (struct dev_object *)drv_get_first_dev_object(); | ||
163 | hdev_obj != NULL; | ||
164 | hdev_obj = (struct dev_object *)drv_get_next_dev_object | ||
165 | ((u32) hdev_obj)) { | ||
166 | if (DSP_SUCCEEDED(dev_get_bridge_context(hdev_obj, | ||
167 | (struct bridge_dev_context | ||
168 | **)&dw_context))) { | ||
169 | if (DSP_SUCCEEDED | ||
170 | (dev_get_intf_fxns | ||
171 | (hdev_obj, | ||
172 | (struct bridge_drv_interface **)&intf_fxns))) { | ||
173 | status = | ||
174 | (*intf_fxns->pfn_dev_cntrl) (dw_context, | ||
175 | BRDIOCTL_POSTSCALE_NOTIFY, | ||
176 | (void *)&arg); | ||
177 | } | ||
178 | } | ||
179 | } | ||
180 | return status; | ||
181 | |||
182 | } | ||