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[kernel/linux-2.6.36.git] / drivers / staging / crystalhd / crystalhd_hw.h
1 /***************************************************************************
2  * Copyright (c) 2005-2009, Broadcom Corporation.
3  *
4  *  Name: crystalhd_hw . h
5  *
6  *  Description:
7  *              BCM70012 Linux driver hardware layer.
8  *
9  *  HISTORY:
10  *
11  **********************************************************************
12  * This file is part of the crystalhd device driver.
13  *
14  * This driver is free software; you can redistribute it and/or modify
15  * it under the terms of the GNU General Public License as published by
16  * the Free Software Foundation, version 2 of the License.
17  *
18  * This driver is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this driver.  If not, see <http://www.gnu.org/licenses/>.
25  **********************************************************************/
26
27 #ifndef _CRYSTALHD_HW_H_
28 #define _CRYSTALHD_HW_H_
29
30 #include "crystalhd_misc.h"
31 #include "crystalhd_fw_if.h"
32
33 /* HW constants..*/
34 #define DMA_ENGINE_CNT          2
35 #define MAX_PIB_Q_DEPTH         64
36 #define MIN_PIB_Q_DEPTH         2
37 #define WR_POINTER_OFF          4
38
39 #define ASPM_L1_ENABLE          (BC_BIT(27))
40
41 /*************************************************
42   7412 Decoder  Registers.
43 **************************************************/
44 #define FW_CMD_BUFF_SZ          64
45 #define TS_Host2CpuSnd          0x00000100
46 #define Hst2CpuMbx1             0x00100F00
47 #define Cpu2HstMbx1             0x00100F04
48 #define MbxStat1                0x00100F08
49 #define Stream2Host_Intr_Sts    0x00100F24
50 #define C011_RET_SUCCESS        0x0     /* Reutrn status of firmware command. */
51
52 /* TS input status register */
53 #define TS_StreamAFIFOStatus    0x0010044C
54 #define TS_StreamBFIFOStatus    0x0010084C
55
56 /*UART Selection definitions*/
57 #define UartSelectA             0x00100300
58 #define UartSelectB             0x00100304
59
60 #define BSVS_UART_DEC_NONE      0x00
61 #define BSVS_UART_DEC_OUTER     0x01
62 #define BSVS_UART_DEC_INNER     0x02
63 #define BSVS_UART_STREAM        0x03
64
65 /* Code-In fifo */
66 #define REG_DecCA_RegCinCTL     0xa00
67 #define REG_DecCA_RegCinBase    0xa0c
68 #define REG_DecCA_RegCinEnd     0xa10
69 #define REG_DecCA_RegCinWrPtr   0xa04
70 #define REG_DecCA_RegCinRdPtr   0xa08
71
72 #define REG_Dec_TsUser0Base     0x100864
73 #define REG_Dec_TsUser0Rdptr    0x100868
74 #define REG_Dec_TsUser0Wrptr    0x10086C
75 #define REG_Dec_TsUser0End      0x100874
76
77 /* ASF Case ...*/
78 #define REG_Dec_TsAudCDB2Base   0x10036c
79 #define REG_Dec_TsAudCDB2Rdptr  0x100378
80 #define REG_Dec_TsAudCDB2Wrptr  0x100374
81 #define REG_Dec_TsAudCDB2End    0x100370
82
83 /* DRAM bringup Registers */
84 #define SDRAM_PARAM             0x00040804
85 #define SDRAM_PRECHARGE         0x000408B0
86 #define SDRAM_EXT_MODE          0x000408A4
87 #define SDRAM_MODE              0x000408A0
88 #define SDRAM_REFRESH           0x00040890
89 #define SDRAM_REF_PARAM         0x00040808
90
91 #define DecHt_PllACtl           0x34000C
92 #define DecHt_PllBCtl           0x340010
93 #define DecHt_PllCCtl           0x340014
94 #define DecHt_PllDCtl           0x340034
95 #define DecHt_PllECtl           0x340038
96 #define AUD_DSP_MISC_SOFT_RESET 0x00240104
97 #define AIO_MISC_PLL_RESET      0x0026000C
98 #define PCIE_CLK_REQ_REG        0xDC
99 #define PCI_CLK_REQ_ENABLE      (BC_BIT(8))
100
101 /*************************************************
102   F/W Copy engine definitions..
103 **************************************************/
104 #define BC_FWIMG_ST_ADDR        0x00000000
105 /* FIXME: jarod: there's a kernel function that'll do this for us... */
106 #define rotr32_1(x, n)          (((x) >> n) | ((x) << (32 - n)))
107 #define bswap_32_1(x)           ((rotr32_1((x), 24) & 0x00ff00ff) | (rotr32_1((x), 8) & 0xff00ff00))
108
109 #define DecHt_HostSwReset       0x340000
110 #define BC_DRAM_FW_CFG_ADDR     0x001c2000
111
112 union addr_64 {
113         struct {
114                 uint32_t        low_part;
115                 uint32_t        high_part;
116         };
117
118         uint64_t        full_addr;
119
120 };
121
122 union intr_mask_reg {
123         struct {
124                 uint32_t        mask_tx_done:1;
125                 uint32_t        mask_tx_err:1;
126                 uint32_t        mask_rx_done:1;
127                 uint32_t        mask_rx_err:1;
128                 uint32_t        mask_pcie_err:1;
129                 uint32_t        mask_pcie_rbusmast_err:1;
130                 uint32_t        mask_pcie_rgr_bridge:1;
131                 uint32_t        reserved:25;
132         };
133
134         uint32_t        whole_reg;
135
136 };
137
138 union link_misc_perst_deco_ctrl {
139         struct {
140                 uint32_t        bcm7412_rst:1;          /* 1 -> BCM7412 is held in reset. Reset value 1.*/
141                 uint32_t        reserved0:3;            /* Reserved.No Effect*/
142                 uint32_t        stop_bcm_7412_clk:1;    /* 1 ->Stops branch of 27MHz clk used to clk BCM7412*/
143                 uint32_t        reserved1:27;           /* Reseved. No Effect*/
144         };
145
146         uint32_t        whole_reg;
147
148 };
149
150 union link_misc_perst_clk_ctrl {
151         struct {
152                 uint32_t        sel_alt_clk:1;    /* When set, selects a 6.75MHz clock as the source of core_clk */
153                 uint32_t        stop_core_clk:1;  /* When set, stops the branch of core_clk that is not needed for low power operation */
154                 uint32_t        pll_pwr_dn:1;     /* When set, powers down the main PLL. The alternate clock bit should be set
155                                                      to select an alternate clock before setting this bit.*/
156                 uint32_t        reserved0:5;      /* Reserved */
157                 uint32_t        pll_mult:8;       /* This setting controls the multiplier for the PLL. */
158                 uint32_t        pll_div:4;        /* This setting controls the divider for the PLL. */
159                 uint32_t        reserved1:12;     /* Reserved */
160         };
161
162         uint32_t        whole_reg;
163
164 };
165
166 union link_misc_perst_decoder_ctrl {
167         struct {
168                 uint32_t        bcm_7412_rst:1; /* 1 -> BCM7412 is held in reset. Reset value 1.*/
169                 uint32_t        res0:3; /* Reserved.No Effect*/
170                 uint32_t        stop_7412_clk:1; /* 1 ->Stops branch of 27MHz clk used to clk BCM7412*/
171                 uint32_t        res1:27; /* Reseved. No Effect */
172         };
173
174         uint32_t        whole_reg;
175
176 };
177
178 union desc_low_addr_reg {
179         struct {
180                 uint32_t        list_valid:1;
181                 uint32_t        reserved:4;
182                 uint32_t        low_addr:27;
183         };
184
185         uint32_t        whole_reg;
186
187 };
188
189 struct dma_descriptor { /* 8 32-bit values */
190         /* 0th u32 */
191         uint32_t sdram_buff_addr:28;    /* bits 0-27:  SDRAM Address */
192         uint32_t res0:4;                /* bits 28-31: Reserved */
193
194         /* 1st u32 */
195         uint32_t buff_addr_low;         /* 1 buffer address low */
196         uint32_t buff_addr_high;        /* 2 buffer address high */
197
198         /* 3rd u32 */
199         uint32_t res2:2;                /* 0-1 - Reserved */
200         uint32_t xfer_size:23;          /* 2-24 = Xfer size in words */
201         uint32_t res3:6;                /* 25-30 reserved */
202         uint32_t intr_enable:1;         /* 31 - Interrupt After this desc */
203
204         /* 4th u32 */
205         uint32_t endian_xlat_align:2;   /* 0-1 Endian Translation */
206         uint32_t next_desc_cont:1;      /* 2 - Next desc is in contig memory */
207         uint32_t res4:25;               /* 3 - 27 Reserved bits */
208         uint32_t fill_bytes:2;          /* 28-29 Bits Fill Bytes */
209         uint32_t dma_dir:1;             /* 30 bit DMA Direction */
210         uint32_t last_rec_indicator:1;  /* 31 bit Last Record Indicator */
211
212         /* 5th u32 */
213         uint32_t next_desc_addr_low;    /* 32-bits Next Desc Addr lower */
214
215         /* 6th u32 */
216         uint32_t next_desc_addr_high;   /* 32-bits Next Desc Addr Higher */
217
218         /* 7th u32 */
219         uint32_t res8;                  /* Last 32bits reserved */
220
221 };
222
223 /*
224  * We will allocate the memory in 4K pages
225  * the linked list will be a list of 32 byte descriptors.
226  * The  virtual address will determine what should be freed.
227  */
228 struct dma_desc_mem {
229         struct dma_descriptor   *pdma_desc_start; /* 32-bytes for dma descriptor. should be first element */
230         dma_addr_t              phy_addr;       /* physical address of each DMA desc */
231         uint32_t                sz;
232         struct _dma_desc_mem_   *Next;          /* points to Next Descriptor in chain */
233
234 };
235
236 enum list_sts {
237         sts_free = 0,
238
239         /* RX-Y Bits 0:7 */
240         rx_waiting_y_intr       = 0x00000001,
241         rx_y_error              = 0x00000004,
242
243         /* RX-UV Bits 8:16 */
244         rx_waiting_uv_intr      = 0x0000100,
245         rx_uv_error             = 0x0000400,
246
247         rx_sts_waiting          = (rx_waiting_y_intr|rx_waiting_uv_intr),
248         rx_sts_error            = (rx_y_error|rx_uv_error),
249
250         rx_y_mask               = 0x000000FF,
251         rx_uv_mask              = 0x0000FF00,
252 };
253
254 struct tx_dma_pkt {
255         struct dma_desc_mem     desc_mem;
256         hw_comp_callback        call_back;
257         struct crystalhd_dio_req        *dio_req;
258         wait_queue_head_t       *cb_event;
259         uint32_t                list_tag;
260 };
261
262 struct crystalhd_rx_dma_pkt {
263         struct dma_desc_mem             desc_mem;
264         struct crystalhd_dio_req        *dio_req;
265         uint32_t                        pkt_tag;
266         uint32_t                        flags;
267         struct BC_PIC_INFO_BLOCK        pib;
268         dma_addr_t                      uv_phy_addr;
269         struct crystalhd_rx_dma_pkt     *next;
270 };
271
272 struct crystalhd_hw_stats {
273         uint32_t        rx_errors;
274         uint32_t        tx_errors;
275         uint32_t        freeq_count;
276         uint32_t        rdyq_count;
277         uint32_t        num_interrupts;
278         uint32_t        dev_interrupts;
279         uint32_t        cin_busy;
280         uint32_t        pause_cnt;
281 };
282
283 struct crystalhd_hw {
284         struct tx_dma_pkt       tx_pkt_pool[DMA_ENGINE_CNT];
285         spinlock_t              lock;
286
287         uint32_t                tx_ioq_tag_seed;
288         uint32_t                tx_list_post_index;
289
290         struct crystalhd_rx_dma_pkt *rx_pkt_pool_head;
291         uint32_t                rx_pkt_tag_seed;
292
293         bool                    dev_started;
294         void                    *adp;
295
296         wait_queue_head_t       *pfw_cmd_event;
297         int                     fwcmd_evt_sts;
298
299         uint32_t                pib_del_Q_addr;
300         uint32_t                pib_rel_Q_addr;
301
302         struct crystalhd_dioq   *tx_freeq;
303         struct crystalhd_dioq   *tx_actq;
304
305         /* Rx DMA Engine Specific Locks */
306         spinlock_t              rx_lock;
307         uint32_t                rx_list_post_index;
308         enum list_sts           rx_list_sts[DMA_ENGINE_CNT];
309         struct crystalhd_dioq   *rx_rdyq;
310         struct crystalhd_dioq   *rx_freeq;
311         struct crystalhd_dioq   *rx_actq;
312         uint32_t                stop_pending;
313
314         /* HW counters.. */
315         struct crystalhd_hw_stats       stats;
316
317         /* Core clock in MHz */
318         uint32_t                core_clock_mhz;
319         uint32_t                prev_n;
320         uint32_t                pwr_lock;
321 };
322
323 /* Clock defines for power control */
324 #define CLOCK_PRESET 175
325
326 /* DMA engine register BIT mask wrappers.. */
327 #define DMA_START_BIT           MISC1_TX_SW_DESC_LIST_CTRL_STS_TX_DMA_RUN_STOP_MASK
328
329 #define GET_RX_INTR_MASK (INTR_INTR_STATUS_L1_UV_RX_DMA_ERR_INTR_MASK |         \
330                           INTR_INTR_STATUS_L1_UV_RX_DMA_DONE_INTR_MASK |        \
331                           INTR_INTR_STATUS_L1_Y_RX_DMA_ERR_INTR_MASK |          \
332                           INTR_INTR_STATUS_L1_Y_RX_DMA_DONE_INTR_MASK |         \
333                           INTR_INTR_STATUS_L0_UV_RX_DMA_ERR_INTR_MASK |         \
334                           INTR_INTR_STATUS_L0_UV_RX_DMA_DONE_INTR_MASK |        \
335                           INTR_INTR_STATUS_L0_Y_RX_DMA_ERR_INTR_MASK |          \
336                           INTR_INTR_STATUS_L0_Y_RX_DMA_DONE_INTR_MASK)
337
338 #define GET_Y0_ERR_MSK (MISC1_Y_RX_ERROR_STATUS_RX_L0_OVERRUN_ERROR_MASK |              \
339                         MISC1_Y_RX_ERROR_STATUS_RX_L0_UNDERRUN_ERROR_MASK |             \
340                         MISC1_Y_RX_ERROR_STATUS_RX_L0_DESC_TX_ABORT_ERRORS_MASK |       \
341                         MISC1_Y_RX_ERROR_STATUS_RX_L0_FIFO_FULL_ERRORS_MASK)
342
343 #define GET_UV0_ERR_MSK (MISC1_UV_RX_ERROR_STATUS_RX_L0_OVERRUN_ERROR_MASK |            \
344                          MISC1_UV_RX_ERROR_STATUS_RX_L0_UNDERRUN_ERROR_MASK |           \
345                          MISC1_UV_RX_ERROR_STATUS_RX_L0_DESC_TX_ABORT_ERRORS_MASK |     \
346                          MISC1_UV_RX_ERROR_STATUS_RX_L0_FIFO_FULL_ERRORS_MASK)
347
348 #define GET_Y1_ERR_MSK (MISC1_Y_RX_ERROR_STATUS_RX_L1_OVERRUN_ERROR_MASK |              \
349                         MISC1_Y_RX_ERROR_STATUS_RX_L1_UNDERRUN_ERROR_MASK |             \
350                         MISC1_Y_RX_ERROR_STATUS_RX_L1_DESC_TX_ABORT_ERRORS_MASK |       \
351                         MISC1_Y_RX_ERROR_STATUS_RX_L1_FIFO_FULL_ERRORS_MASK)
352
353 #define GET_UV1_ERR_MSK (MISC1_UV_RX_ERROR_STATUS_RX_L1_OVERRUN_ERROR_MASK |            \
354                          MISC1_UV_RX_ERROR_STATUS_RX_L1_UNDERRUN_ERROR_MASK |           \
355                          MISC1_UV_RX_ERROR_STATUS_RX_L1_DESC_TX_ABORT_ERRORS_MASK |     \
356                          MISC1_UV_RX_ERROR_STATUS_RX_L1_FIFO_FULL_ERRORS_MASK)
357
358
359 /**** API Exposed to the other layers ****/
360 enum BC_STATUS crystalhd_download_fw(struct crystalhd_adp *adp,
361                               void *buffer, uint32_t sz);
362 enum BC_STATUS crystalhd_do_fw_cmd(struct crystalhd_hw *hw, struct BC_FW_CMD *fw_cmd);
363 bool crystalhd_hw_interrupt(struct crystalhd_adp *adp, struct crystalhd_hw *hw);
364 enum BC_STATUS crystalhd_hw_open(struct crystalhd_hw *, struct crystalhd_adp *);
365 enum BC_STATUS crystalhd_hw_close(struct crystalhd_hw *);
366 enum BC_STATUS crystalhd_hw_setup_dma_rings(struct crystalhd_hw *);
367 enum BC_STATUS crystalhd_hw_free_dma_rings(struct crystalhd_hw *);
368
369
370 enum BC_STATUS crystalhd_hw_post_tx(struct crystalhd_hw *hw, struct crystalhd_dio_req *ioreq,
371                              hw_comp_callback call_back,
372                              wait_queue_head_t *cb_event,
373                              uint32_t *list_id, uint8_t data_flags);
374
375 enum BC_STATUS crystalhd_hw_pause(struct crystalhd_hw *hw);
376 enum BC_STATUS crystalhd_hw_unpause(struct crystalhd_hw *hw);
377 enum BC_STATUS crystalhd_hw_suspend(struct crystalhd_hw *hw);
378 enum BC_STATUS crystalhd_hw_cancel_tx(struct crystalhd_hw *hw, uint32_t list_id);
379 enum BC_STATUS crystalhd_hw_add_cap_buffer(struct crystalhd_hw *hw,
380                                     struct crystalhd_dio_req *ioreq, bool en_post);
381 enum BC_STATUS crystalhd_hw_get_cap_buffer(struct crystalhd_hw *hw,
382                                     struct BC_PIC_INFO_BLOCK *pib,
383                                     struct crystalhd_dio_req **ioreq);
384 enum BC_STATUS crystalhd_hw_stop_capture(struct crystalhd_hw *hw);
385 enum BC_STATUS crystalhd_hw_start_capture(struct crystalhd_hw *hw);
386 void crystalhd_hw_stats(struct crystalhd_hw *hw, struct crystalhd_hw_stats *stats);
387
388 /* API to program the core clock on the decoder */
389 enum BC_STATUS crystalhd_hw_set_core_clock(struct crystalhd_hw *);
390
391 #endif