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authorIgor M. Liplianin <liplianin@netup.ru>2011-09-23 11:17:41 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-09-23 15:00:57 -0300
commitcff4fa8415a3224a5abdd2b1dd7f431e4ea49366 (patch)
treee27e0d5998d3e47a8fe90380b3c166993b121239 /drivers/misc/altera-stapl/altera-jtag.h
parent08347cdd2d745cdcd82e8c4aa2804923df298f33 (diff)
[media] altera-stapl: it is time to move out from staging
[mchehab@redhat.com: Fix a merge conflict] Signed-off-by: Igor M. Liplianin <liplianin@netup.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/misc/altera-stapl/altera-jtag.h')
-rw-r--r--drivers/misc/altera-stapl/altera-jtag.h113
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/misc/altera-stapl/altera-jtag.h b/drivers/misc/altera-stapl/altera-jtag.h
new file mode 100644
index 000000000000..2f97e36a2fbc
--- /dev/null
+++ b/drivers/misc/altera-stapl/altera-jtag.h
@@ -0,0 +1,113 @@
+/*
+ * altera-jtag.h
+ *
+ * altera FPGA driver
+ *
+ * Copyright (C) Altera Corporation 1998-2001
+ * Copyright (C) 2010 NetUP Inc.
+ * Copyright (C) 2010 Igor M. Liplianin <liplianin@netup.ru>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef ALTERA_JTAG_H
+#define ALTERA_JTAG_H
+
+/* Function Prototypes */
+enum altera_jtag_state {
+ ILLEGAL_JTAG_STATE = -1,
+ RESET = 0,
+ IDLE = 1,
+ DRSELECT = 2,
+ DRCAPTURE = 3,
+ DRSHIFT = 4,
+ DREXIT1 = 5,
+ DRPAUSE = 6,
+ DREXIT2 = 7,
+ DRUPDATE = 8,
+ IRSELECT = 9,
+ IRCAPTURE = 10,
+ IRSHIFT = 11,
+ IREXIT1 = 12,
+ IRPAUSE = 13,
+ IREXIT2 = 14,
+ IRUPDATE = 15
+
+};
+
+struct altera_jtag {
+ /* Global variable to store the current JTAG state */
+ enum altera_jtag_state jtag_state;
+
+ /* Store current stop-state for DR and IR scan commands */
+ enum altera_jtag_state drstop_state;
+ enum altera_jtag_state irstop_state;
+
+ /* Store current padding values */
+ u32 dr_pre;
+ u32 dr_post;
+ u32 ir_pre;
+ u32 ir_post;
+ u32 dr_length;
+ u32 ir_length;
+ u8 *dr_pre_data;
+ u8 *dr_post_data;
+ u8 *ir_pre_data;
+ u8 *ir_post_data;
+ u8 *dr_buffer;
+ u8 *ir_buffer;
+};
+
+#define ALTERA_STACK_SIZE 128
+#define ALTERA_MESSAGE_LENGTH 1024
+
+struct altera_state {
+ struct altera_config *config;
+ struct altera_jtag js;
+ char msg_buff[ALTERA_MESSAGE_LENGTH + 1];
+ long stack[ALTERA_STACK_SIZE];
+};
+
+int altera_jinit(struct altera_state *astate);
+int altera_set_drstop(struct altera_jtag *js, enum altera_jtag_state state);
+int altera_set_irstop(struct altera_jtag *js, enum altera_jtag_state state);
+int altera_set_dr_pre(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *preamble_data);
+int altera_set_ir_pre(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *preamble_data);
+int altera_set_dr_post(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *postamble_data);
+int altera_set_ir_post(struct altera_jtag *js, u32 count, u32 start_index,
+ u8 *postamble_data);
+int altera_goto_jstate(struct altera_state *astate,
+ enum altera_jtag_state state);
+int altera_wait_cycles(struct altera_state *astate, s32 cycles,
+ enum altera_jtag_state wait_state);
+int altera_wait_msecs(struct altera_state *astate, s32 microseconds,
+ enum altera_jtag_state wait_state);
+int altera_irscan(struct altera_state *astate, u32 count,
+ u8 *tdi_data, u32 start_index);
+int altera_swap_ir(struct altera_state *astate,
+ u32 count, u8 *in_data,
+ u32 in_index, u8 *out_data,
+ u32 out_index);
+int altera_drscan(struct altera_state *astate, u32 count,
+ u8 *tdi_data, u32 start_index);
+int altera_swap_dr(struct altera_state *astate, u32 count,
+ u8 *in_data, u32 in_index,
+ u8 *out_data, u32 out_index);
+void altera_free_buffers(struct altera_state *astate);
+#endif /* ALTERA_JTAG_H */

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