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author | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2010-03-15 23:23:54 (GMT) |
commit | 4961e02f1999e1c3468c09b2669c94d7c3ae82a8 (patch) | |
tree | 44c15abb09d7ba5e17a9aba95ee246648b1c1a8a /drivers/staging/dream/include/mach/msm_smd.h | |
parent | d14a0ebda7d3daede1a99c01527affb9ceaa4c22 (diff) | |
parent | a3d3203e4bb40f253b1541e310dc0f9305be7c84 (diff) | |
download | linux-fsl-qoriq-4961e02f1999e1c3468c09b2669c94d7c3ae82a8.tar.xz |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'drivers/staging/dream/include/mach/msm_smd.h')
-rw-r--r-- | drivers/staging/dream/include/mach/msm_smd.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/staging/dream/include/mach/msm_smd.h b/drivers/staging/dream/include/mach/msm_smd.h new file mode 100644 index 0000000..bdf7731 --- /dev/null +++ b/drivers/staging/dream/include/mach/msm_smd.h @@ -0,0 +1,107 @@ +/* linux/include/asm-arm/arch-msm/msm_smd.h + * + * Copyright (C) 2007 Google, Inc. + * Author: Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __ASM_ARCH_MSM_SMD_H +#define __ASM_ARCH_MSM_SMD_H + +typedef struct smd_channel smd_channel_t; + +/* warning: notify() may be called before open returns */ +int smd_open(const char *name, smd_channel_t **ch, void *priv, + void (*notify)(void *priv, unsigned event)); + +#define SMD_EVENT_DATA 1 +#define SMD_EVENT_OPEN 2 +#define SMD_EVENT_CLOSE 3 + +int smd_close(smd_channel_t *ch); + +/* passing a null pointer for data reads and discards */ +int smd_read(smd_channel_t *ch, void *data, int len); + +/* Write to stream channels may do a partial write and return +** the length actually written. +** Write to packet channels will never do a partial write -- +** it will return the requested length written or an error. +*/ +int smd_write(smd_channel_t *ch, const void *data, int len); + +int smd_write_avail(smd_channel_t *ch); +int smd_read_avail(smd_channel_t *ch); + +/* Returns the total size of the current packet being read. +** Returns 0 if no packets available or a stream channel. +*/ +int smd_cur_packet_size(smd_channel_t *ch); + +/* used for tty unthrottling and the like -- causes the notify() +** callback to be called from the same lock context as is used +** when it is called from channel updates +*/ +void smd_kick(smd_channel_t *ch); + + +#if 0 +/* these are interruptable waits which will block you until the specified +** number of bytes are readable or writable. +*/ +int smd_wait_until_readable(smd_channel_t *ch, int bytes); +int smd_wait_until_writable(smd_channel_t *ch, int bytes); +#endif + +typedef enum +{ + SMD_PORT_DS = 0, + SMD_PORT_DIAG, + SMD_PORT_RPC_CALL, + SMD_PORT_RPC_REPLY, + SMD_PORT_BT, + SMD_PORT_CONTROL, + SMD_PORT_MEMCPY_SPARE1, + SMD_PORT_DATA1, + SMD_PORT_DATA2, + SMD_PORT_DATA3, + SMD_PORT_DATA4, + SMD_PORT_DATA5, + SMD_PORT_DATA6, + SMD_PORT_DATA7, + SMD_PORT_DATA8, + SMD_PORT_DATA9, + SMD_PORT_DATA10, + SMD_PORT_DATA11, + SMD_PORT_DATA12, + SMD_PORT_DATA13, + SMD_PORT_DATA14, + SMD_PORT_DATA15, + SMD_PORT_DATA16, + SMD_PORT_DATA17, + SMD_PORT_DATA18, + SMD_PORT_DATA19, + SMD_PORT_DATA20, + SMD_PORT_GPS_NMEA, + SMD_PORT_BRIDGE_1, + SMD_PORT_BRIDGE_2, + SMD_PORT_BRIDGE_3, + SMD_PORT_BRIDGE_4, + SMD_PORT_BRIDGE_5, + SMD_PORT_LOOPBACK, + SMD_PORT_CS_APPS_MODEM, + SMD_PORT_CS_APPS_DSP, + SMD_PORT_CS_MODEM_DSP, + SMD_NUM_PORTS, +} smd_port_id_type; + +#endif |