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author | John Stultz <john.stultz@linaro.org> | 2013-05-15 12:42:15 -0700 |
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committer | John Stultz <john.stultz@linaro.org> | 2013-05-15 12:42:15 -0700 |
commit | 15a6affec4449b54afba15ab7edbad0cac2736d3 (patch) | |
tree | f2fa815f74be0b56acd05e62113600a7113d48a9 /include/linux/sudmac.h | |
parent | cd432fc233f4e7aba43b4fe499a4445f0f6ee1c6 (diff) | |
parent | f722406faae2d073cc1d01063d1123c35425939e (diff) |
Merge tag 'v3.10-rc1' into linaro-android-3.10-experimental-mergetracking-linaro-android-3.10-llct-20130518.0
Linux 3.10-rc1
Diffstat (limited to 'include/linux/sudmac.h')
-rw-r--r-- | include/linux/sudmac.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/sudmac.h b/include/linux/sudmac.h new file mode 100644 index 000000000000..377b8a5788fa --- /dev/null +++ b/include/linux/sudmac.h @@ -0,0 +1,52 @@ +/* + * Header for the SUDMAC driver + * + * Copyright (C) 2013 Renesas Solutions Corp. + * + * This is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + */ +#ifndef SUDMAC_H +#define SUDMAC_H + +#include <linux/dmaengine.h> +#include <linux/shdma-base.h> +#include <linux/types.h> + +/* Used by slave DMA clients to request DMA to/from a specific peripheral */ +struct sudmac_slave { + struct shdma_slave shdma_slave; /* Set by the platform */ +}; + +/* + * Supplied by platforms to specify, how a DMA channel has to be configured for + * a certain peripheral + */ +struct sudmac_slave_config { + int slave_id; +}; + +struct sudmac_channel { + unsigned long offset; + unsigned long config; + unsigned long wait; /* The configuable range is 0 to 3 */ + unsigned long dint_end_bit; +}; + +struct sudmac_pdata { + const struct sudmac_slave_config *slave; + int slave_num; + const struct sudmac_channel *channel; + int channel_num; +}; + +/* Definitions for the sudmac_channel.config */ +#define SUDMAC_TX_BUFFER_MODE BIT(0) +#define SUDMAC_RX_END_MODE BIT(1) + +/* Definitions for the sudmac_channel.dint_end_bit */ +#define SUDMAC_DMA_BIT_CH0 BIT(0) +#define SUDMAC_DMA_BIT_CH1 BIT(1) + +#endif |